Consulta: year:"1996"
Registros recuperados: 3.035
Máximo de registros impressos: 2500
Data/hora: 04/06/2024 06:24:57

Susceptibilidad y mecanismos de adaptación de genotipos de frijol a la clorosis férrica = Dry bean genotypes susceptibility and adaptation mechanisms to iron chlorosis
Provedor de dados: 32
Autores: Hernández Ríos, Ismael; Alcantar González, Gabriel; Tirado Torres, Juan Luis; Carrillo Castañeda, Guillermo.
Se realizaron dos experimentos en condiciones de invernadero. En el primero se evaluó la susceptibilidad a la clorosis férrica de 21 variedades y dos líneas de frijol (Phaseolus vulgaris L.), usando 0.1 ppm de Fe-EDTA en la solución nutritiva de Hoagland. Se encontró que Bayo Zacatecas fue la variedad más tolerante (Fe-eficiente) y Garbancillo Supremo la más susceptible (Fe-ineficiente). En el segundo experimento, ambas variedades fueron sometidas a 0 y 2 ppm de Fe-EDTA en la solución nutritiva de Steinberg; se observó una mayor y más rápida acidificación de la solución nutritiva con Bayo Zacatecas, lo que posiblemente le confiere en parte su Fe-eficiencia. Asimismo, esta variedad presentó la mayor concentración de clorofila y la mayor actividad nitrato...
Tipo: Artículo
Palavras-chave: Clorosis férrica; Fe-eficiencia; Iron chlorosis; Frijol; Fe-efficiency; Dry bean; Phaseolus vulgaris L.
Ano: 1996
URL: http://hdl.handle.net/10521/1738

Programa en Basic para la estimación del rendimiento climático máximo = Program in basic to estimate the maximum climatic yield
Provedor de dados: 32
Autores: Campos Aranda, Daniel Francisco.
En este trabajo se presenta un algoritmo computacional desarrollado para hacer expedita la aplicación del método propuesto por la FAO para la estimación del rendimiento climático máximo de cualquiera de los cinco cultivos siguientes: alfalfa (Medicago sativa), maíz (Zea mays L.), sorgo (Sorghum bicolor L. Moench) y trigos de invierno y de primavera (Triticum spp.). Tal método está basado en el criterio desarrollado por el Instituto Internacional de Mejoramiento y Recuperación de Tierras, de Wageningen, Holanda. El método se aplica mediante un procedimiento que estima variables y parámetros climáticos y del cultivo, por medio de una serie de tabulaciones; por ello, éstas se representaron mediante ecuaciones de tipo polinomial y senoidal obtenidas por...
Tipo: Artículo
Palavras-chave: Agroclimatología; Rendimiento potencial; Cultivos; Agroclimatology; Crops; Potential yield.
Ano: 1996
URL: http://hdl.handle.net/10521/1754

96SRC235 (995)
Provedor de dados: 8
Autores: Orrell,  Keith G.; Hibbs, Dai E.; Hursthouse, Michael B.; Lamond, Steven J.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~22~H~36~F~12~N~2~O~8~P~2~; Organic.
Ano: 1996
URL: http://ecrystals.chem.soton.ac.uk/793/

96SRC221 (993)
Provedor de dados: 8
Autores: Cameron, James H.; Hibbs, Dai E.; Hursthouse, Michael B.; Lamond, Steven J.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~30~H~54~P4~; Organic.
Ano: 1996
URL: http://ecrystals.chem.soton.ac.uk/794/

96SRC099 (1079)
Provedor de dados: 8
Autores: Butler, Ian. R.; Coles, Simon J.; Hursthouse, Michael B.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~34~H~28~FeP~2~; Organometallic.
Ano: 1996
URL: http://ecrystals.chem.soton.ac.uk/760/

96SRC196(409)
Provedor de dados: 8
Autores: Kresinski, Roman.A.; Hibbs, Dai. E.; Hursthouse, Michael B.; Lamond, Steven J.
Tipo: Crystal Structure Data Holding
Palavras-chave: ErH~6~P~3~O~6~; Inorganic.
Ano: 1996
URL: http://ecrystals.chem.soton.ac.uk/820/

96SRC309 (973)
Provedor de dados: 8
Autores: Underhill, Allan E.; Coles, Simon J.; Hursthouse, Michael B.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~25~H~18~Fe~2~S~5~; Organometallic.
Ano: 1996
URL: http://ecrystals.chem.soton.ac.uk/764/

96SRC294 (975)
Provedor de dados: 8
Autores: Underhill, Allan E.; Hibbs, Dai E.; Hursthouse, Michael B.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~25~H~20~Fe~2~S~5~; Organometallic.
Ano: 1996
URL: http://ecrystals.chem.soton.ac.uk/790/

96SRC064 (1078)
Provedor de dados: 8
Autores: Kurmoo, Mohamed; Coles, Simon J.; Hursthouse, Michael B.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~26~H~38~CdI~4~N~6~O~4~; Organometallic.
Ano: 1996
URL: http://ecrystals.chem.soton.ac.uk/759/

96SRC245 (981)
Provedor de dados: 8
Autores: Tebby, John C.; Hibbs, Dai E.; Hursthouse, Michael B.; Lamond, Steven J.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~18~H~19~NO~2~; Organic.
Ano: 1996
URL: http://ecrystals.chem.soton.ac.uk/796/

96SRC101 (1080)
Provedor de dados: 8
Autores: Butler, Ian. R.; Coles, Simon J.; Hursthouse, Michael B.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~34~H~28~Cl~2~FeP~2~Pd.CH~2~Cl~2~; Organometallic.
Ano: 1996
URL: http://ecrystals.chem.soton.ac.uk/761/

96SRC233 (994)
Provedor de dados: 8
Autores: Baker,; Coles, Simon J.; Hursthouse, Michael B.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~31~H~22~Cl~2~I~3~MoNO~3~P; Organometallic.
Ano: 1996
URL: http://ecrystals.chem.soton.ac.uk/762/

96SRC243 (982)
Provedor de dados: 8
Autores: Hepworth, John D.; Gabbutt, Chris D.; Hibbs, Dai E.; Hursthouse, Michael B.; Lamond, Steven J.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~31~H28~O~3~S; Organic.
Ano: 1996
URL: http://ecrystals.chem.soton.ac.uk/797/

96SRC261 (980)
Provedor de dados: 8
Autores: Underhill, Allan E.; Coles, Simon J.; Hursthouse, Michael B.
Tipo: Crystal Structure Data Holding
Palavras-chave: C~17~H~10~S~5~; Organic.
Ano: 1996
URL: http://ecrystals.chem.soton.ac.uk/763/

OS DESAFIOS DA EXTENSÃO RURAL NO PRESENTE: O ENSINO DE EXTENSÃO RURAL EM QUESTÃO
Provedor de dados: 194
Autores: Cavalet, Valdo José.
Disponivel em anexo.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://periodicos.ufsm.br/extensaorural/article/view/6120

Á GUISA DE PREFÁCIO: POR UM ENSINO E UMA FORMAÇÃO TECNOLÓGICA SUSTENTÁVEL NAS CIÊNCIAS AGRÁRIAS
Provedor de dados: 194
Autores: Froehlich, José Marcos.
Disponivel em anexo.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://periodicos.ufsm.br/extensaorural/article/view/6117

HISTORICIDADE DA DISCIPLINA DE EXTENSÃO RURAL
Provedor de dados: 194
Autores: Fialho, José Renato Duarte.
Disponivel em anexo.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://periodicos.ufsm.br/extensaorural/article/view/6118

CONTRIBUIÇÃO CRÍTICA PARA UMA NOVA VISÃO DE ENSINO DA EXTENSÃO RURAL
Provedor de dados: 194
Autores: Vela, Hugo Anibal Gonzalez.
Disponível em anexo.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://periodicos.ufsm.br/extensaorural/article/view/6121

OS DESAFIOS DA EXTENSÃO RURAL NO PRESENTE
Provedor de dados: 194
Autores: Muniz, José Norberto.
Disponivel em anexo.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://periodicos.ufsm.br/extensaorural/article/view/6119

ALGUNAS CONSIDERACIONES SOBRE EL ENFOQUE SISTÉMICO Y SU IMPORTANCIA PARA LA EXTENCIÓN RURAL
Provedor de dados: 194
Autores: Hegedus, Pedro de; Morales, Hermes.
Disponivel em anexo.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://periodicos.ufsm.br/extensaorural/article/view/6123

O CONTEÚDO PROGRAMÁTICO DA DISCIPLINA DA EXTENSÃO RURAL NA UFSM
Provedor de dados: 194
Autores: Neumann, Pedro Selvino.
Disponivel em anexo.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://periodicos.ufsm.br/extensaorural/article/view/6878

POR UMA NOVA DEFINIÇÃO PROFISSIONAL DO AGRÔNOMO: A CONTRIBUIÇÃO DAS DISCIPLINAS VOLTADAS PARA A PERSPECTIVA DO DESENVOLVIMENTO RURAL SUSTENTÁVEL
Provedor de dados: 194
Autores: Almeida, Jalcione.
Disponivel em anexo.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://periodicos.ufsm.br/extensaorural/article/view/6122

ALGUMAS CONSIDERAÇÕES SOBRE O ESTÁGIO DE VIVENCIA DESENVOLVIDO PELO CENTRO DE CIÊNCIAS AGRÁRIAS DA UFSC
Provedor de dados: 194
Autores: Gondim, Paulo.
Disponivel em anexo.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://periodicos.ufsm.br/extensaorural/article/view/6126

Результаты  изучения дыхания  и локомоции у планктонных организмов Черного моря в ИнБЮМ за последние 20 лет
Provedor de dados: 13
Autores: Павлова, Е. В.; Минкина, Н. И.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1363

К вопросу о долгосрочных изменениях биомассы диатомовых и перидиниевых водорослей Черного моря  в связи с атмосферными переносами
Provedor de dados: 13
Autores: Брянцева, Ю. В.; Брянцев, В. А.; Ковальчук, Л. А.; Самышев, Э. З.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1361

Ихтио- и тевтофауна тропических районов океана
Provedor de dados: 13
Autores: Зуев, Г. В.; Болтачев, А. Р.; Никольский, В. Н.; Царин, С. А.; Чесалин, М. В.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1369

Многолетняя изменчивость прозрачности воды в Черном море и факторы, обусловившие ее сильное снижение в конце 80-х начале 90-х годов
Provedor de dados: 13
Autores: Маньковский, В. И.; Владимиров, В. Л.; Афонин, Е. И.; Соловьев, М. В.; Аннинский, Б. Е.; Георгиева, Л. В.; Юнев, О. А.
Проанализирован 72-х летний (1923-1995 гг) ряд наблюдений прозрачности воды в Чер-ном море, определявшейся с помощью измерений глубины видимости белого диска. В глубоководной области моря прозрачность воды (среднегодовое значение Zd) подвер-жена значительной многолетней изменчивости - в рассматриваемый период она изменялась от 21,3 до 6,2 м, т.е. более чем в три раза. Наибольшая межгодовая изменчивость Zd наблюдалась с 1986 по 1995 год, когда ее величина уменьшилась от 16 м в 1986 г до 6,2 м в 1992 г и снова уве-личилась до 17,7 м в 1995 г. Выявлено, что на многолетнюю изменчивость прозрачности воды в глубоководной об-ласти моря в этот период влияли: циклическое изменение солнечной активности (11-ти летние циклы), антропогенная эвтрофикация вод, вселение в...
Tipo: Other
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/685

Результаты и  перспективы  исследования биолюминесценции  в Черном  море
Provedor de dados: 13
Autores: Битюков, Э. П.; Василенко, В. И.; Серикова, И. М.; Токарев, Ю. Н.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1362

Физиолого-биохимические исследования  гидробионтов
Provedor de dados: 13
Autores: Шульман, Г. Е.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1365

Экологические аспекты изучения загрязнения Черного  моря хлорорганическими  ксенобиотиками
Provedor de dados: 13
Autores: Поликарпов, Г. Г.; Жерко, Н. В.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1371

Применение уравнений светозависимого содержания пигментов в растительных клетках для описания экспериментальных кривых.
Provedor de dados: 13
Autores: Геворгиз, Р. Г.; Тренкеншу, Р. П.
Получены уравнения зависимости содержания пигментов в растительных клетках от поверхностной освещенности. Уравнения применены для описания светозависимого содержания пигментов микроводорослей различных систематических групп. Определены коэффициенты полученных уравнений. Показано хорошее соответствие экспериментальных и теоретических кривых. http://biotex.ibss.org.ua/
Tipo: Book
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1535

СБС-ИнБЮМ 125 лет
Provedor de dados: 13
Autores: Заика, В. Е.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1359

Связь биологических  параметров морского фитообрастания с    морфометрическими параметрами экспериментальных обрастающих структур
Provedor de dados: 13
Autores: Хайлов, К. М.; Смолев, Д. М.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1368

Эколого-паразитологические  исследования  в ИнБЮМ НАН Украины:  состояние, перспективы
Provedor de dados: 13
Autores: Гаевская, А. В.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1366

Изучение роста и размножения пелагических копепод Черного моря в ИнБЮМ НАН Украины
Provedor de dados: 13
Autores: Сажина, Л. И.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1364

Фитопланктон Черного моря: современное состояние и перспективы исследований
Provedor de dados: 13
Autores: Георгиева, Л. В.; Сеничкина, Л. Г.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1360

Результаты изучения мейобентоса Черного моря
Provedor de dados: 13
Autores: Сергеева, Н. Г.; Колесникова, Е. А.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1367

Направления  и  результаты  исследований  отдела  морской санитарной  гидробиологии
Provedor de dados: 13
Autores: Миронов, О. Г.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/1370

О Lepidapedon elongatum (Trematoda, Lepocreadiidae) и его синонимах
Provedor de dados: 13
Autores: Гаевская, А. В.
Lepidapedon elongatum (Lebour, 1908) is rediscribed. Trematodes were collected from the Atlantic cod Gadus morhua L. (the type-host of this species) caught in the North-Western Atlantic. L. microcotyleum Odhner, in Dollfus, 1953 and L. gadi (Yamaguti, 1934), both from the same host are regarded as junior synonyms of L. elongatum.
Tipo: Journal Contribution
Ano: 1996
URL: http://repository.ibss.org.ua/dspace/handle/99011/2194

Uso de radiação ionizante para esterilizar alimentos e detecção de formação de radicais livres por EPR.
Provedor de dados: 14
Autores: MARTIN-NETO, L.; RODRIGUES, H. R.; TRAGHETTA, D. G.
bitstream/CNPDIA/9815/1/CiT02_96.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Alimentos; EPR.; Radiação Ionizante.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27031

CENARGEN, función e importancia.
Provedor de dados: 14
Autores: VALOIS, A. C. C.
Tipo: Artigo de periódico
Palavras-chave: CENARGEN; Biotecnologia; Instituição de Pesquisa; Recurso Genético; Biotechnology; Genetic resources; Research institutions.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/171558

Recuperação e manejo de capim jaragua na engorda de bovino em Presidente Medici - RO.
Provedor de dados: 14
Autores: GONCALVES, C. A.; DUTRA, S.; OLIVEIRA, J. R. da C.
O trabalho teve como objetivo determinar metodos eficientes de recuperacao de pastagem de capim jaragua (Hyparrhenia rufa) e desenvolver sistemas de utilizacao para manter a longevidade produtiva. Foi conduzido na Fazenda Presidente Hermes, minicipio de Presidente Medice, Rondonia, em solo Podzolico Vermelho-Amarelo, textura franco-argilosa, de media fertilidade, durante tres anos. O delineamento foi inteiramente casualizado, com duas repeticoes, em arranjo fatorial (3x2x2), com tres metodos de recuperacao (I- limpeza, II- limpeza + fosforo + leguminosas; e III- limpeza + leguminosas + Brachiaria humidicola), duas taxas de lotacao (baixa e alta), ajustavel de acordo com a estacao do ano e dois sistemas de pastejo (continuo e rotativo). As taxas de lotacao...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Recuperacao da pastagem; Brasil; Rondonia; Porto Velho; Grassland management.; Bovino; Capim Jaraguá; Engorda; Hyparrhenia Rufa; Manejo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/700885

Coleta e identificação de insetos coletados com armadilha luminosa na área experimental e adjacências nos diferentes ambientes do Projeto SHIFT.
Provedor de dados: 14
Autores: PAMPLONA, A. M. S. R.; ANDREAZZE, R.
O presente trabalho teve o objetivo de avaliar a entomofauna em dois pontos do plantio e nas áreas adjacentes ao projeto SHIFT e sua possível influência sobre o mesmo. As coletas foram feitas com uso de armadilha luminosa tipo "Luiz de Queiroz" no período de junho/93 a abril/94.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Floresta Tropical Úmida; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671742

Desempenho técnico, econômico e financeiro da Fazenda São Francisco no Projeto Piratinga (1988 a 1994).
Provedor de dados: 14
Autores: VELOSO, R. F.; CARVALHO, E. R. O.; GOULART, A. M.
O Projeto Piratinga; A Cooperativa COOPERTINGA; O Agente Financeiro Principal; A Fazenda Sao Francisco; A gerencia; Solos e clima; Investimentos; Mercados de insumos e produtos; O processo de producao; Adocao de tecnologias; Mao-de-obra empregada; Atividades agricolas; Receitas e custos das atividades comerciais; Perspectivas do negocio a medio prazo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Avaliacao; PRODECER; Programa de Cooperacao Nipo-Brasileira para Desenvolvimento dos Cerrados; Fazenda Sao Francisco; Projeto Piratinga; Formoso; Minas Gerais; Brasil; Management; Productivity; Evaluation; Administration; Piratinga; Savanna; Valuation.; Administração Rural; Administração; Fazenda; Performance.; Brazil; Farms.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/552972

Anais...
Provedor de dados: 14
Autores: WORKSHOP SOBRE AS POTENCIALIDADES DE USO DO ECOSSISTEMA DE VÁRZEAS DA AMAZÔNIA, 1., 1996, Boa Vista, RR.
Potencialidades economicas das varzeas da Amazonia. Potencialidades das varzeas da Amazonia para a pecuaria. Utilizacao das varzeas amazonicas. Potencialidades das varzeas para recursos pesqueiros: uma visao socio economica e ecologica. Consideracao sobre o ecossistema de varzea e atividades de pesquisa em Roraima. Experiencias agricolas nas varzeas do Estado do Amapa. Utilizacao de azolla como fonte de nitrogenio para a cultura do arroz nas varzeas do estuario amazonico. Uso agricola atual e potencial das varzeas no Estado do Amazonas. Fauna silvestre das varzeas amazonicas. Caracterizacao de quintais agroflorestais em regiao de varzea de influencia fluvio-marinha. Composicao floristica e fitossociologia de um ecossistema de mangue no nordeste paraense....
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil.; Agricultura Familiar; Agricultura; Arroz; Desenvolvimento Sustentável; Floresta Tropical Úmida; Oryza Sativa; Solo; Várzea.; Amazonia.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665486

Produção artificial de basidiocarpos de Crinipellis perniciosa do cupuaçuzeiro em meio de farelo-vermiculita.
Provedor de dados: 14
Autores: STEIN, R. L. B.; ITO, T.; ALBUQUERQUE, F. C. de; NASCIMENTO R. M. do.
bitstream/item/42901/1/Boletim-Pesquisa-167-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Basidiocarpos; Theobroma agrandiflorium; Brasil.; Crinipellis Perniciosa; Cupuaçu; Fruta; Fungo; Meio de Cultura.; Amazonia; Culture media; Fruits; Fungi.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374452

Plano de recuperação de áreas degradadas do aproveitamento hidrelétrico (ahe) Corumbá, Goiás.
Provedor de dados: 14
Autores: SILVA, S. P. C.; CAVALCANTI, T. B.
bitstream/item/130276/1/PlanodeRecupdeareaPRADCOR.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Area degradada; Recuperacao; Brasil; Corumba; Goias; Recuperation; Hydroeletric.; Hidrelétrica.; Area; Degradation; Brazil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/171625

Agricultura irrigada no Ceará: recursos físicos, humanos e produção técnico-científica.
Provedor de dados: 14
Autores: OLIVEIRA, V. H. de; SANTOS, F. J. de S.; SAUNDERS, L. C. V.
Agricultura Irrigada no Ceara; Recursos fisicos; Solos irrigaveis; Aerea implantada com irrigacao e culturas irrigadas; Aerea experimental com agricultura irrigada; Sistemas de irrigacao utilizados; Recursos humanos; Producao tecnico-cientifica por linha de pesquisa; Manejo de irrigacao; Desenvolvimento e avaliacao de equipamento e sistemas de irrigacao; Parametros basicos do solo para irrigacao e drenagem; Informatica na irrigacao e drenagem; Avaliacao socio-economica da irrigacao.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Ceará.; Agricultura; Irrigação.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/424177

Apostilas distribuídas...
Provedor de dados: 14
Autores: CURSO DE ATUALIZAÇÃO PARA TÉCNICOS DO BANCO DO BRASIL, 2., 1996, Petrolina.
Cultura do melão; Principais doenças e cucurbitaceae no trópico semi-árido brasileiro; Principais viroses do melão.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cultivo; Cucurbitácea; Memória técnica do CPATSA; Doença; Melão.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/158671

Geração de tecnologia agroindustrial para o desenvolvimento do trópico úmido.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agroflorestal da Amazônia Oriental.
Identifição e técnicas de criação de polinizadores de espécies vegetais de importância econômica no estado do Pará. Biologia e fisiologia de crinipellis perniciosa do cupuaçuzeiro, em relação a fisiopatologia. Epidemologia da vassoura-de-bruxa do cupuaçuzeiro. Levantamento de microrganismos potencialmente ativos contra fussarium solani f.sp. piperis. Extração e caracterização do óleo e oleorresina da pimenta-do-reino. Comportamento de germoplasma de pimenta-do-reino em relação a produtividade e resistência a doenças em regiões da Amazônia. Caracterização bioquímica de germoplasma de fruteiras. Estudo para Identificação de vegetais produtores de corantes, ocorrentes na flora amazônica. Melhoramento de plantas de interesse econômico para a região amazônica...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Agroindústria; Agrofloresta; Urucu; Castanha-do-brasil; Vassoura-de-bruxa; Pimenta-do-reino; Ipeca; Brasil; Agricultural industries; Tecnhology; Annatto; Bacury; Brazil nuit; Disease; Black papper; Castanha-do-pará.; Bacuri; Cupuaçu; Doença; Fruta; Polinização; Tecnologia.; Amazonia; Agroforestry; Pollination.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/386286

Desenvolvimento de culturas anuais em sistemas de policultivo.
Provedor de dados: 14
Autores: ARAÚJO, R. da C.; MARTINS, G. C.; MORAES, C. R. de A.
O plantio experimental do Projeto SHIFT foi instalado em uma área abandonada, semelhante as dos agricultores, tendo como um dos objetivos dar uma contribuição no sentido de melhor entender tais sistemas e uma tentativa de encontrar meios de amenizar os problemas agrícolas da região.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Floresta Tropical Úmida; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671743

Desempenho de feijão (Phaseolus vulgaris L.) do grupo carioca no Amapá.
Provedor de dados: 14
Autores: CAVALCANTE, E. da S.
O feijão (Phaseolus vulgaris L.) e um produto de alto significado social na composição da agricultura brasileira, constituindo-se junto com o arroz a base da alimentação do povo brasileiro. Este trabalho foi realizado pelo Centro de Pesquisa Agroflorestal do Amapá - CPAF-AP e constou da avaliação de 19 genotipos de feijão do grupo carioca.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amapá.; Feijão; Phaseolus Vulgaris.; Performance; Beans; Brazil; Yields.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341841

Resumos...
Provedor de dados: 14
Autores: REUNIAO NACIONAL DE PESQUISA DE CAUPI, 4., 1996, Teresina.
Reunião de estudiosos e conhecedores do caupi para discutir problemas e encaminhar soluções de forma e promover o desenvolvimento sustentado da cultura, sob os seguintes temas: Bioquimica; Fitossanidade; Fitotecnia, Fisiologia e Tecnologia de sementes; Genetica e Melhoramento; Irrigação e Drenagem; Sócio-economia; Solos e Nutrição.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Caupi; Congresso; Brasil; Teresina; Piaui; Congress.; Vigna Unguiculata.; Cowpeas.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/53672

Doenças da erva-mate: identificação e controle.
Provedor de dados: 14
Autores: GRIGOLETTI JUNIOR, A.; AUER, C. G.
bitstream/item/16966/1/circ-tec25.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Erva mate; Diseases.; Espécie nativa; Doença de planta; Fungo; Ilex Paraguariensis.; Fungi.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290764

Determinação das perdas de solo e água em solo podzólico vermelho escuro sob diferentes condições de manejo na Região de Rio Branco - Acre.
Provedor de dados: 14
Autores: CORDEIRO, D. G.; DEDECEK, R.; MOURÃO, P. de L.; SILVEIRA, A. M. de P.
A erosão é uma das principais causas de empobrecimento rápido do solo. A avaliação do empobrecimento do solo em diferentes sistemas de uso e a eficiência na adoção das práticas conservacionistas são os principais fatores a serem estudados, visando reduzir os efeitos negativos da erosão sobre a fertilidade do solo e das mudanças nas suas condições físicas. O tipo de cultura utilizada (perene/anual) e o manejo do solo são os fatores que mais afetam as perdas de solo e água A chuva (através da sua capacidade de destruir a estrutura do solo e provocar a enxurrada - erosividade) e o solo (através da sua capacidade de resistir ao impacto da gota, de armazenamento de água etc - erodibilidade), também exercem forte influência nas perdas de solo e água. Este...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Perda de nutrientes; Solo Podzólico Vermelho Escuro; Rio Branco (AC); Acre; Amazônia Ocidental.; Água; Manejo; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492609

O cultivo da videira: informações básicas.
Provedor de dados: 14
Autores: KUHN, G. B.; LOVATEL, J. L.; PREZOTTO, O. P.; RIVALDI, O. F.; MANDELLI, F.; SÔNEGO, O. R.
bitstream/item/87140/1/o-cultivo.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Enxertia; Sistema de sustentação Manejo.; Adubação; Doença de Planta; Muda; Praga; Poda; Produção; Variedade; Solo; Uva; Viticultura.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/537229

Comportamento do cupuaçuzeiro em diferentes sistemas de plantio em função de dois níveis de adubação e inoculação ou não das plantas com FMVAs.
Provedor de dados: 14
Autores: ARAÚJO, R. da C.; SILVA, S. E. L. da; MARTINS, G. C.
O presente trabalho foi conduzido numa área de recuperação de um seringal abandonado, com o objetivo de verificar o comportamento do cupuaçuzeiro em quatro sistemas de cultivo, em função dos níveis 100 e 30% de adubação, com as plantas inoculadas ou não com fungos micorrízicos.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Cultivo Multiplo; Cupuaçu; Floresta Tropical Úmida; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671747

Desempenho de feijão (Phaseolus vulgaris L.) do grupo preto no Amapá.
Provedor de dados: 14
Autores: CAVALCANTE, E. da S.
O feijão (Phaseolus vulgaris L.), é um produto de mais alto significado social na composição da agricultura brasileira, constituindo-se junto com o arroz a base de alimentação do povo brasileiro. Este trabalho foi realizado pelo Centro de Pesquisa Agroflorestal do Amapá - CPAF-Amapá, com o apoio do Centro Nacional de Pesquisa de Arroz e Feijão - CNPAF e constou da avaliação de 15 genotipos de feijão do grupo preto.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amapá.; Feijão; Phaseolus Vulgaris.; Performance; Beans; Brazil; Yields.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341842

Utilizacao da mistura multipla para gado na seca.
Provedor de dados: 14
Autores: LOPES, H. O. da S.; PEREIRA, E. A.
bitstream/item/121499/1/gtec-02.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Epoca seca; Mistura multipla.; Bovino; Cerrado; Nutrição Animal.; Animal feeding; Cattle; Dry season.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/545308

Avaliação de germinação na espiga em genótipos de trigo em experimentação no Rio Grande do Sul, em 1995.
Provedor de dados: 14
Autores: LINHARES, A. G.; GUARIENTI, E. M.; MOREIRA, J. C. S.
bitstream/item/121255/1/FL-06628.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cultivar; Brasil.; Linhagem.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849606

Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 45 (Manaus-AM).
This project has by objective the quantification of water and nutrient fluxes in an experimental plantation, which is composed of different monoculture and polyculture systems with mainly perennial crops, as well as in primary and secondary forest at EMBRAPA-CPAA (Manaus, AM, Brasil). The flux measurements are expected to provide information about the efficiency with which the different land use systems exploit the available resources (water, nutrients) on the infertile soils of the area and minimize unproductive losses, e.g., through leaching. Efficient resource utilization is seem as a procondition of sustainable land use on this site.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropical rain forest; Água; Cultivo Multiplo; Floresta Tropical Úmida; Nutriente; Solo; Uso da Terra; Agroforestry; Land use; Multiple cropping; Nutrients; Soil; Water.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668143

Associação norgestomet-cloprostenol na indução do parto em cabras leiteiras.
Provedor de dados: 14
Autores: AZEVEDO, H. C.; SALLES, H. O.; MACHADO, R.; SOARES, A. T.; SANTOS, D. O.
O trabalho objetivou avaliar a eficiencia da associacao entre um agente progestageno, o norgestomet, e um agente luteolitico, o cloprostenol, na inducao sincronizada do parto em cabras leiteiras.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Induce parturiton; Induced parturition.; Caprino; Cabra leiteira; Parto; Indução; Goats; Cloprostenol; Norgestomet.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514739

Diagnóstico da pecuária em Rondônia.
Provedor de dados: 14
Autores: COSTA, N. de L.; MAGALHÃES, J. A.; TAVARES, A. C.; TOWNSEND, C. R.; PEREIRA, R. G. de A.; SILVA NETTO, F. G. da.
Aspectos gerais sobre Rondônia: tipos de exploração; estrutura fundiária; infra-estrutura de apoio a produção; pesquisa e assistência técnica; rebanho bovino; Pecuária de leite: produção estadual, industrialização, oferta e demanda de leite do estado, regições produtoras, prognóstico; Pecuária de corte: constituição do rebanho de corte, abates e produção de carne, comercialização do gado, matadouros, frigoríficos, regões de pecuária de corte; Bufalos: rebanho, estrutura das propriedades, comercialização e prognóstico.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Diagnosis; Rondônia; Amazônia Ocidental; Western Amazon.; Pecuária; Diagnostico.; Livestock.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/698961

Utilização de leguminosas para adubação verde.
Provedor de dados: 14
Autores: SALTON, J. C.
bitstream/item/38997/1/COT-15-1996-final.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Adubação Verde; Cerrado; Leguminosa.; Green manures; Legumes.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/241124

Anais.
Provedor de dados: 14
Autores: SIMPOSIO SOBRE SISTEMA INTENSIVO DE SUINOS CRIADOS AO AR LIVRE, 1., 1996, Concordia, SC.
bitstream/item/67977/1/DMeu-DiscoCNPSA-DOC.-40-96CNPSA-DOC.-40-96.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Criacao ao ar livre; Sistema intensivo; Congresso; Outdoor; Production; Meeting.; Suíno.; Swine.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/431703

Critérios para instalação de quebra-ventos.
Provedor de dados: 14
Autores: CONCEIÇÃO, M. A. F.
bitstream/item/25946/1/Comt18.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Instalação.; Clima; Vento; Fruta; Quebra-Vento.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/535616

Comportamento do urucuzeiro (Bixa orellana) em sistema de policultivo, submetido a dois níveis de adubação e inoculação ou não das plantas com FMVA: produção.
Provedor de dados: 14
Autores: ARAÚJO, R. C.; MORAES, C. R. A.; MORAIS, R. R.; NORMANDO, M. C.
Com a finalidade de recuperar uma área abandonada de um seringal pertencente ao CPAA/Embrapa, instalou-se um experimento com sistemas de cultivo, onde o urucuzeiro foi instalado no sistema composto por cupuaçu, pupunha e castanha-do-brasil.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Bixa Orellana; Cultivo Multiplo; Floresta Tropical Úmida; Urucum; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671745

Cruzamento em gado de corte.
Provedor de dados: 14
Autores: EUCLIDES FILHO, K.
Escolha do sistema de cruzamento; Base genética da heterose e calculo da heterozigose; Características gerais das raças bovinas de corte; Sistemas de cruzamento; Vantagens e desvantagens dos diferentes tipos de cruzamentos; Cruzamentos versus seleção; Ambiente e melhoramento genético de bovinos de corte; Demanda/ambiente versus escolha do sistema de cruzamento; Alguns resultados de pesquisa em cruzamento de Bos taurus com Bos indicus no Brasil.
Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E)
Palavras-chave: Sistema; Methods; Melhoramento genético.; Gado de corte; Cruzamento animal; Seleção; Vigor hibrido; Genética.; Beef cattle; Breeding.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/100653

Zoneamento agrícola: recomendação de épocas de semeadura de soja para o estado do Rio Grande do Sul safra 1996/97.
Provedor de dados: 14
Autores: CUNHA, G. R.; HAAS, J. C.
bitstream/item/84197/1/CNPT-DOC.-29-96.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Zoneamento; Recomendação; Rio Grande do Sul; Geoprocessamento; Cultivar; Brasil; Safra 96/97.; Semeadura; Risco Climático; Soja.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849773

Anais...
Provedor de dados: 14
Autores: SIMPÓSIO BRASILEIRO DA CULTURA DO KIWI, 1., 1994, Farroupilha.
A situação da cultura do kiwi no Brasil. A cultura do kiwi. A poda do kiwi. Fisiologia pós-colheita do kiwi. Cosecha, conservación y normas de embalaje de kiwis. Regulamentação e classificação do kiwi para comercialização. Demandas de pesquisa para a cultura do kiwi.
Tipo: Anais e Proceedings de eventos
Palavras-chave: Quivi; Cultivo; Classificação; Comercialização; Conservação; Embalagem; Fisiologia; Fruticultura; Poda; Pós-Colheita; Produção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/538678

EMBRAPA 47.
Provedor de dados: 14
Informações gerais; Características botânicas e agronômicas; Reação às doenças; Resultados.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445155

Recomendação de épocas de semeadura de trigo para o estado do Rio Grande do Sul safra 1996.
Provedor de dados: 14
Autores: CUNHA, G. R. da; HAAS, J. C.
bitstream/item/121260/1/FL-06638.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Cultivar; Geoprocessamento; Zoneamento.; Risco Climático.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849616

Apostilas distribuídas...
Provedor de dados: 14
Autores: CURSO DE ATUALIZAÇÃO PARA TÉCNICOS DO BANCO DO BRASIL, 2., 1996, Petrolina.
Recomendações técnicas para o cultivo do feijoeiro comum; Principais doenças do feioeiro no trópico semi-árido brasileiro; Pragas do feijoeiro.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Feião; Cultivo; Memória técnica do CPATSA; Doença; Praga.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/145778

Estudo de solos colapsíveis por método não-invasivo.
Provedor de dados: 14
Autores: NAIME, J. M.; CONCIANI, W.; SOARES, M. M.; CRUVINEL, P. E.; CRESTANA, S.
bitstream/CNPDIA/9819/1/PA11_96.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Solos.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27043

Cultivo e utilização do nim indiano (Azadirachta indica A. Juss).
Provedor de dados: 14
Autores: NEVES, B. P. das; NOGUEIRA, J. C. M.
O uso indiscriminado de inseticidas químicos, tanto na agricultura como na pecuária está sendo questionado em nível mundial. Todos estão à busca de alimentos mais naturais, com menos resíduos de agrotóxicos prejudiciais à saúde humana. Neste sentido, têm-se procurado alternativas econômicas, visando reduzir o emprego desordenado de pesticidas químicos, substituindo-os por produtos naturais, menos tóxico e menos agressivo ao homem e ao meio ambiente. Desta forma, surge a planta denominada Nim Indiano (Azadirachta indica A. Juss), cujas propriedades inseticidas e medicinais são conhecidas pela população da Índia há vários séculos.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Azadirachta Indica; Nim; Controle Químico; Inseticida.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/203715

Um pouco da nossa historia.
Provedor de dados: 14
Autores: EMBRAPA-CNPGL.Centro Nacional de Pesquisa de Gado de Leite.
bitstream/item/143036/1/2056.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Contos; EMBRAPA-CNAPGL; Narrative.; Historia.; History.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/592329

Cultura da mangueira.
Provedor de dados: 14
Autores: ALBUQUERQUE, J. A. S. de; MOUCO, M. A. do C.
Exigências edafoclimáticas; Cultivares; Propagação; Implantação do pomar; Sistema de produção/Práticas culturais; Adubação; Indução à floração; Colheita; Comercialização.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivo; Tommy atkins; Haden; Vandyke; Keitt; Kent; Floration; Mango.; Manga; Sistema de produção; Floração; Mangifera Indica; Pratica Cultural; Poda; Variedade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131360

Ocorrencia do tripes tabaci (Thysanoptera: Tripidae) na cultura da melancia em varios agroecossistemas de Roraima.
Provedor de dados: 14
Autores: MOREIRA, M. A. B.
bitstream/item/175371/1/cot00296-tripes-marcos.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Roraima; Tripidae; Tripes Tabaci; Watermelon; Disease.; Doença; Melancia.; Thysanoptera.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687569

Embrapa 60.
Provedor de dados: 14
Autores: PIPOLO, A. E.
Características botânicas e agronômicas; Informações gerais; Reação às doencas; Resultados.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445149

Embrapa 62.
Provedor de dados: 14
Autores: PIPOLO, A. E.
Informações gerais; Reação às doenças; Características botânicas e agronômicas; Resultados.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445151

Características físico-mecânicas e energéticas de madeiras do trópico Semi-Árido do Nordeste do Brasil.
Provedor de dados: 14
Autores: LIMA, J. L. S. de; SERPA, F. da G.; SA, I. B.; MENDONCA, A. L.; DUARTE, E. S.
Indica as característica físico-mecânicas e energéticas de suas madeiras e oferecer parâmetros técnicos que possam favorecer uma adequada utilização destas espécies. Para tanto, confeccionaram-se corpos de prova para ensaios físico-mecânicos e químicos, onde foram analisados os seguintes parâmetros: peso específico aparente, retratividade, compressão axial, flexão estática, fendilhamento, poder calórico e carbono fixo, dentre outros.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Recursos naturais; Código florestal; Pereiro; Pau branco; Angico brabo/monjolo; Característica; Aspidosperma purifolium; Manejo florestal; Poptadenia zenhtneri; Planta nativa; Natural resource.; Recurso natural; Desertificação; Astronium Urundeuva; Aroeira; Dalbergia Cearensis; Jurema Preta; Violeta.; Mimosa tenuiflora; Natural resources.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/127568

Cuidados básicos com microscópios ópticos.
Provedor de dados: 14
Autores: MACEDO, A.; BISCEGLI, C. I.; RABELLO, L. M.; HERRMANN, P. S. P.
bitstream/item/77081/1/CT03-96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Microscópio.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27024

Curso...
Provedor de dados: 14
Autores: CURSO DE ATUALIZAÇÃO PARA TÉCNICOS Do BANCO DO BRASIL, 2., 1996, Petrolina, 1996.
Cultura da bananeira; Pragas da bananeira; Doenças da bananeira.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivar; Banana; Curso; Doença; Praga.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/159152

Sintomatologia da toxidez do alumínio em porta-enxertos de videira.
Provedor de dados: 14
Autores: FRÁGUAS, J. C.
bitstream/item/87145/1/sintomologia.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Porta-enxerto.; Acidez; Alumínio; Uva; Solo; Viticultura.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/537805

Coleta, conservação, caracterização e avaliação de genótipos de pimenta longa (Piper hispidinervum) no Estado do Acre.
Provedor de dados: 14
Autores: OLIVEIRA, M. N. de; LUNZ, A. M. P.
A pimenta longa (Piper hispidinervium), pertencente à família das Piperáceas, é encontrada no estado do Acre, onde ocorre normalmente em áreas de pousio (capoeira), formando populações de grande densidade, tornando-se dominante sobre as demais espécies. É uma planta produtora de óleo essencial rico em safrol, substância utilizada como precursora na fabricação de inseticidas biodegradáveis, cosméticos e produtos farmacêutico0 Os derivados mais importantes obtidos do safrol são a heliotropina ou piperonal, usado como componente de fragrâncias nas indústrias de cosméticos e perfumarias, e o butóxido de piperonila, usado como agente sinergístico junto com o piretrium. O cultivo desta espécie, bem como o manejo de populações naturais da mesma, poderá se...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cultivo; Acre; Amazônia Ocidental.; Genótipo; Pimenta Longa; Piper Hispidinervum.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492259

Análise do teor de óleo em sementes por RMN.
Provedor de dados: 14
Autores: COLNAGO, L. A.
O conhecimento do teor de óleo em sementes e grãos é indispensável para procedimentos de seleção genética de variedades de milho, soja, amendoim etc., com alto teor de óleo, para se conhecer o potencial de produção dos grãos em agroindústrias de refinamento de óleo, para avaliar o valor energético dos alimentos, entre outros usos. A metodologia clássica de determinação do teor de óleo em sementes e grãos consiste em secá-los até peso constante, moagem até pó bem fino, extração exaustiva com solventes orgânicos em extratores soxhlet e evaporação do solvente até peso constante. Nesse método, o óleo é considerado como o material solúvel no solvente e não apenas os triglicerídeos. Esse é um processo demorado e que destrói as amostras analisadas.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Refinamento de óleo; Valor energético; Ressonância magnética nuclear; RMN; Soxhlet.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27416

Manual de produção de manteiga.
Provedor de dados: 14
Autores: SILVA, F. T.; SILVA, F. T.
Processo de fabricação. Desnate natural, mecânico. Filtração do creme, tratamento do creme. Estocagem do creme. Padronização. Neutralização. Pasteurização. Resfriamento. Maturação natural, artificial. Batedura. Lavagem da manteiga. Salga da manteiga. Malaxagem.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agroindústria rural.; Tecnologia de alimento; Produto derivado do leite; Indústria agrícola; Laticínio; Manteiga; Produto de origem animal; Gordura láctea; Processamento.; Food technology; Food processing; Dairy products; Butter; Animal products.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/410326

Levantamento florístico da regeneração natural em área de várzea do Rio Guamá, Estado do Pará.
Provedor de dados: 14
Autores: MASCARENHAS, R. E. B.; MULLER, N. R. M.; MODESTO JUNIOR, M. de S.
bitstream/item/42895/1/Boletim-Pesquisa-163-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Levantamento florístico; Área de várzea do rio Guamá; Pará; Brasil; Forest.; Composição Botânica; Erva Daninha; Floresta; Regeneração Natural.; Amazonia; Botanical composition; Natural regeneration; Surveys; Weeds.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374428

Mecanismos de sorção da atrazina em solos: estudos espectroscópicos e polarográficos
Provedor de dados: 14
Autores: TRAGHETTA, D. G.; VAZ, C. M. P.; MACHADO, S. A. S.; CRESTANA, S.; VIEIRA, E. M.; MARTIN-NETO, L.
bitstream/CNPDIA/9831/1/CT14_96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Solos; Sorção da atrazina.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29726

Cultura do girassol: tecnologia de produção.
Provedor de dados: 14
Autores: CASTRO, C. de; CASTIGLIONI, V. B. R.; BALLA, A.
bitstream/item/77915/1/CNPSO-DOC.-67-97.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Girassol.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/952116

Espaçamento e adubação nitrogenada em melancia. I. Efeito sobre a produtividade.
Provedor de dados: 14
Autores: GARCIA, L. F.
bitstream/item/72657/1/CPAMN-PESQ.-AND.-65-96.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Espaçamento; Fertilizante; Melancia; Rendimento.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/78286

Fruticultura no Nordeste brasileiro: o potencial das espécies nativas e de introduzidas pouco cultivadas.
Provedor de dados: 14
Autores: CARVALHO, J. H. de.
Fruteiras nativas e exoticas; Estudos etnobotanicos; Levantamentos botanicos; Colecao e avaliacao de fruteiras nativas e exoticas; Metodos de multiplicacao; Melhoramento genetico; Manejo; Sistemas integrados de producao; Colheita e pos-colheita; Tecnologia agroindustrial; Fomento e politica agricola; Mercadologia.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Fruta nativa; Fruta exotica; Potencial; Fomento; Tecnologia agroindustrial; Mercadologia.; Espécie; Pesquisa; Política Agrícola.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/50462

ATEPROS: administracao tecnica e economica da propriedade suinicola.
Provedor de dados: 14
Autores: GIROTTO, A. F.
Instalacao e desinstalacao do ATEPROS; Coleta das informacoes; Preenchimento dos formularios; Digitacao de dados.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Programa; Computer; Programme; Rural farm.; Computador; Propriedade Rural; Suíno.; Swine.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/433734

Recomendação sobre o uso do ultra-som para diagnóstico de prenhez de bovinos e eqüinos.
Provedor de dados: 14
Autores: NOVAES, A. P.; BISCEGLI, C. I.
O diagnostico da prenhez de bovinos e equinos e de extrema importancia economica, porque viabiliza o descarte dos improdutivos e contribui, dessa forma, para minimizar os custos de producao. A idade do feto que permite o diagnostico influi no manejo do rebanho, onde as femeas prenhez sao separadas em pastos de melhor qualidade, pois representam o componente produtivo do rebanho. Assim, quanto mais cedo ocorrer o diagnostico, maior a oportunidade para dar a esses animais o tratamento adequado. O metodo tradicional de deteccao de prenhez, chamado de toque retal, requer que o perito faca a apalpacao nos cornos uterinos, atraves das porcoes finais do reto, para verificar alteracoes fisiologicas de volume e textura no utero e vesicula amniotica. As alteracoes...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Instrumentacao agropecuaria; Ultra-som; Bovinos; Equinos; EMBRAPA-CNPDIA; EMBRAPA-CPPSE; Agricultural instrumentation; Ultrasound.; Diagnostico; Equipamento; Prenhez.; Equipment.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/26390

ATEPROS - Administração Técnica e Econômica de Propriedades Suinicolas.
Provedor de dados: 14
Autores: GIROTTO, A. F.
bitstream/item/123218/1/DOC-38.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Suinocultura; Economia; Administração; Propriedade Rural.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1014776

Perspectivas da mandioca na região semi-árida do Nordeste.
Provedor de dados: 14
Autores: CAVALCANTI, J.
bitstream/item/32856/1/Josias.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Mandioca.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/126521

Estimativa de custo de produção de milho, safra 1996/97.
Provedor de dados: 14
Autores: RICHETTI, A.; MELO FILHO, G. A. de; PARIZOTO, A. M.
bitstream/item/65969/1/CPAO-COM.-TEC.-14-96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Maize; Production; Costs.; Custo; Estimativa; Milho; Produção; Zea Mays.; Corn.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/240249

A CAPOEIRA como vegetação de pousio na agricultura da Amazônia Oriental: função e manejo.
Provedor de dados: 14
bitstream/item/67369/1/FD1052.PDF
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Corte e trituração; Queima.; Capoeira.; Amazonia.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/935403

Informações sobre o algodão no Brasil: situação atual, problemas, perspectivas e possíveis soluções.
Provedor de dados: 14
Autores: BELTRAO, N. E. de M.
bitstream/item/47125/1/DOC-46.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Conjuntura Economica; Problemas; Perspectivas; Solucoes; Brasil; Conjuncture; Economic; Problem; Perspective; Solution.; Algodão.; Cotton.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/269455

Avaliacao de clones de cajueiro anao precoce nos cerrados piauiense.
Provedor de dados: 14
Autores: LIMA, P. R. de A.; OLIVEIRA, F. N. S.; BARROS, L. de M.
bitstream/item/97546/1/PAND680001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cajueiro anao precoce; Piaui; Brasil.; Anacardium Occidentale; Caju; Clone; Rendimento.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/52450

Ocorrência do percevejo-das-gramíneas, Blissus leucopterus leucopterus (Say, 1832) (Hemiptera: Lygaeidae) na cultura do arroz em Roraima.
Provedor de dados: 14
Autores: MOREIRA, M. A. B.
bitstream/item/175370/1/cot00196-percevejo-marcos.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Percevejo-das-gramineas; Ocorrencia; Brasil; Roraima; Pest; Insect.; Arroz; Inseto; Praga.; Rice.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687507

Controle do mofo cinzento (Botrytis cinerea) com fungo Gliocladium roseum em culturas protegidas de morangueiros.
Provedor de dados: 14
Autores: VALDEBENITO-SANHUEZA, R. M.; SUTTON, J.; PERAZZOLO, I.; CZERMAINSKI, A. B. C.
bitstream/item/55220/1/cot022.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Controle.; Fruticultura; Fungo; Morango.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/538687

Curso...
Provedor de dados: 14
Autores: CURSO DE ATUALIZAÇÃO PARA TÉCNICOS DO BANCO DO BRASIL, 2., 1996, Petrolina.
1. Cultura da mangueira: Principais pragas, principais doenças, colheita e manuseio pós-colheita. Autores: João Antonio da Silva Albuquerque e Maria Aparecida Mouco. 2. Principais pragas da cultura da manga e seu controle. Autores: Francisca Nemaura Pedrosa Haji e José Adalberto de Alencar. 3. Principais doenças da mangueira e alternativas de controle. Autor: Selma Cavalcante Cruz de Holanda Tavares. 4. Colheita e manuseio pós-colheita. Autor: Mohammad Menhazuddin Choudhhury.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Manuseio; Mango.; Manga; Colheita; Doença; Mangifera Indica; Pós-Colheita; Praga.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/161659

Comportamento de cultivares de batata-inglesa (Solanum tuberosum L.) em condicoes de baixa altitude do Estado de Sergipe.
Provedor de dados: 14
Autores: NUNES, M. U. C.
bitstream/item/149500/1/Comportamento-de-Cultivares0001.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Batatinha; Cultivo; Brasil; Sergipe; Potato.; Batata Inglesa.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/359268

MG/BR 46 (Conquista).
Provedor de dados: 14
Autores: ARANTES, N. E.
Características morfológicas e agronômicas. Reação às doenças. Recomendações técnicas. Rendimento de grãos.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/976528

Profundidade de semeadura para trigo no cerrado.
Provedor de dados: 14
Autores: BARBOSA, D.
bitstream/item/121503/1/gtec-04.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Wheats; Sowing depth.; Cerrado; Profundidade de Semeadura; Trigo; Triticum Aestivum.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/545306

Adubacao fosfatada e potassica para a sucessao soja-trigo em latossolo roxo distrofico sob semeadura direta.
Provedor de dados: 14
Autores: LANTMANN, A. F.; ROESSING, A. C.; SFREDO, G. J.; OLIVEIRA, M. C. N. de.
Adubacao fosfatada para a soja; Adubacao potassica para a soja; Adubacao fosfatada para o trigo; Adubacao potassica para o trigo; Efeitos da ausencia de adubacao para soja na sucessao soja-trigo; Efeitos da adubacao e da correcao da acidez sobre os indices de fertilidade do solo; Acidez do solo; Disponibilidade de potassio; Disponibilidade de fosforo; Rendimento do trigo; Rendimento da soja; Analise economica dos efeitos da adubacao para o sistema soja-trigo; Consideracoes finais; Recomendacoes.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Sucessao; Semeadura direta; Brasil; Parana; Soybean; Fertilization; Double-cropping.; Adubação; Soja; Solo.; Brazil; No-tillage; Soil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445885

Como plantar acerola.
Provedor de dados: 14
Autores: MELEM JUNIOR, N. J.; SEGOVIA, J. F. O.
Preparo das covas; Época de plantio; Distância entre as plantas; Adubação de covas; Transplante; Adubação de cobertura.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivo; Cultivation.; Acerola; Malpighia Glabra; Plantio.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341146

Recomendações técnicas para o cultivo de amendoim precoce no período das águas.
Provedor de dados: 14
Autores: SANTOS, R. C. dos; VALE, L. V.; SILVA, O. R. R. F. da; ALMEIDA, R. P. de; ALMEIDA, V. M. R. A.
Estudo do clima, solo (textura, preparo, calagem e adubação orgânica e química), plantio (época, modalidade, espaçamento, quantidade de sementes/ha e densidade populacional), sementes, tratos culturais (controle de plantas daninhas, capinas ou limpas, herbicidas, amontoa), pragas e doenças, colheita, secagem, beneficiamento e armazenamento do amendoim precoce no período das águas.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cultivo; Nordeste; Estação chuvosa; Rainfall.; Amendoim; Arachis Hypogaea.; Peanuts.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/269461

Recomendações para o controle pós-colheita das podridões de maçãs.
Provedor de dados: 14
Autores: VALDEBENITO-SANHUEZA, R. M.
bitstream/item/55219/1/cot021.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Colheita; Contaminação; Desinfecção; Doença de Planta; Fungo; Fruticultura; Maçã; Podridão.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/537661

Centeio.
Provedor de dados: 14
Autores: BAIER, A. C.
Importância econômica. O centeio no Brasil. Centros de origem. Classificação botânica. Características botânicas. Características biológicas. Composição química. Tecnologia alimentar. Uso forrageiro. Reação às doenças. Reprodução. Citogenética. Melhoramento. Recomendações de cultivo. Semeadura e adubação. Épocas de semeadura e cultivares. Pastoreio. Rotação de culturas. Controle de inços, de insetos e de fungos. Colheita e armazenagem. Produção de semente. Descrição da cultivar CENTEIO BR 1.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cereal.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849789

Sistema de informação em elementos de aquisição de dados para ambiente agropecuário.
Provedor de dados: 14
Autores: INAMASU, R. Y.; BERTUCCI NETO, V.; FERREIRA, W. S.; SOTTO, C. A. B.; TORRE NETO, A.; NAIME, J. M.; RABELLO, L. M.; CRUVINEL, P. E.; BERNARDES FILHO, R.; HERRMANN JUNIOR, P. S. P.; VAZ, C. M. P.
bitstream/CNPDIA/9807/1/PA10_96.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Ambiente agropecuário; Dados.; Sistema de Informação.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29876

Banco de germoplasma de mandioca: manejo, conservação e caracterização.
Provedor de dados: 14
Autores: FUKUDA, W. M. G.; COSTA, I. R. S.; VILARINHOS, A. D.; OLIVEIRA, R. P. de.
Esse trabalho teve por objetivos discutir aspectos gerais relativos ao manejo de germoplasma de mandioca envolvendo a coleta, quarentena, conservação, caracterização, avaliação, identificação de acessos duplicados, intercâmbio e documentação de germoplasma de mandioca. São apresentadas informações sobre os locais de coleta de mandioca no Brasil, as coleções nacionais, descritores morfológicos e agronômicos, métodos de conservação de germoplasma de mandioca e de identificação de acessos duplicados nas coleções. Apresenta-se também a relação dos acessos do banco ativo de germoplasma de mandioca do Centro Nacional de Pesquisa de mandioca e Fruticultura Tropical (CNPMF), com os principais sados de passaporte.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Manihot esculenta Crantz; Banco Ativo de Germoplasma.; Mandioca.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/641470

Relatório técnico: resultados do período 1992-94.
Provedor de dados: 14
Autores: REUNIÃO DA COMISSÃO TÉCNICA REGIONAL DE FEIJÃO - REGIÃO II, 8., 1994, Goiânia.
A Comissão Técnica Regional de Feijão Região II (CTFeijão II), criada em 1982, e composta pelas instituições de pesquisa dos Estados de Mato Grosso, Mato Grosso do Sul, Goiás e Distrito Federal, Tocantins, Rondônia, Minas Gerais, São Paulo, Rio de Janeiro e Espirito Santo. A CTFeijão II, tem como objetivo central subsidiar a Comissão Regional de Avaliação e Recomendação de Cultivares de Feijão (CRC-Feijão), para a Região II, instituída em 21 de julho de 1981. No período de 22 a 24 de novembro de 1994, foi realizada a VIII Reunião da CTFeijão II, patrocinada pela Embrapa, através do Centro Nacional de Pesquisa de Arroz e Feijão (CNPAF), na sede do CNPAF, em Goiânia, GO. Alem das palestras, são apresentados os resultados dos ERs e os da rede de avaliação de...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Relatório técnico.; Feijão; Phaseolus Vulgaris; Pesquisa.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/204766

Efeito de diferentes níveis de sombreamento na produtividade e persistência de Arachis pintoi em Rio Branco, Acre.
Provedor de dados: 14
Autores: ANDRADE, C. M. S. de; VALENTIM, J. F.
Este trabalho tem como objetivo avaliar a produtividade e persistência da leguminosa Arachis pintoi, submetida a diferentes níveis de sombreamento em Rio Branco, Acre, a nível de campo, visando o uso múltiplo desta espécie como forrageira em sistemas silvipastoris, como cobertura vegetal, em sistemas agroflorestais e em culturas perenes como café, seringueira, citros e outras, e em parques e jardins.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Sistemas agroflorestais (SAFs); Amendoim forrageiro; Persistência.; Leguminosa Forrageira; Produtividade; Sombreamento.; Arachis pintoi.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492234

Potencial proteico de pedunculos de caju enriquecidos por leveduras.
Provedor de dados: 14
Autores: HOLANDA, J. S. de; OLIVEIRA, A. J. de; SALVIANO, L. M. C.; FERREIRA, A. C.
A producao de pedunculos de caju no Brasil e estimada em 1 milhao de toneladas/ano, com aproveitamento industrial entre 2% e 6%. Apresentando cerca de 10% de carboidratos, grande parte da producao desperdicada pode ser convertida em racao de elevado teor proteico, por microrganismos sintetizadores de proteina, como as leveduras. A eficiencia de conversao, no entanto, depende das condicoes do substrato e do meio fermentativo. Este trabalho visou estudar o efeito do substrato: pedunculos de caju frescos, doces ou azedos, e pedunculos secos reidratados, o controle da acidez e a suplementacao no meio fermentativo, na conversao de proteina por leveduras.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Potencial proteico; Levedura.; Caju; Pedúnculo; Saccharomyces Cerevisiae.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/420034

CNPSo: busca de soluções; compromisso com o homem.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
Suporte tecnológico; Preservando a natureza; Independência tecnológica; Desafios; Nossa gente; Nossa coordenação; Nossa participação.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Paraná; Soybean.; Pesquisa; Soja.; Brazil; Research.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/444319

A soja e as plantas daninhas.
Provedor de dados: 14
Autores: GAZZIERO, D. L. P.; VOLL, E.
As consequências. O que fazer? Manejo integrado.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Erva daninha; Soybeans; Weeds.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/459837

Qualidade industrial de trigo.
Provedor de dados: 14
Autores: GUARIENTI, E. M.
bitstream/item/84196/1/CNPT-DOC.-27-96.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Qualidade industrial.; Trigo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849741

Termômetro eletrônico digital portátil para solos tropicais.
Provedor de dados: 14
Autores: TORRE NETO, A.; CORDEIRO, D. G.
bitstream/CNPDIA/9829/1/CT12_96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Termômetro eletrônico.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27046

RECOMENDAÇÕES técnicas para o cultivo do feijão.
Provedor de dados: 14
O que fazer para alcançar uma boa produção. Escolha do terreno para o plantio. Manejo do solo. Análise do solo. Correção da acidez do solo. Adubação. Preparo do solo. Aração. Gradagem. Épocas de plantio. Sistemas de plantio. População de plantas. Variedades. Como não errar? Como escolher a variedade correta? Sementes. Tratametnos de sementes. Tratos culturais. Controle de pragas. Controle de doenças. Colheita. Armazenamento. Acompanhamento econômico. Resumos dos resultados econômicos.
Tipo: Folhetos
Palavras-chave: Feijão; Phaseolus Vulgaris; Sistema de Cultivo; Manejo do Solo; Semente; Armazenamento; Variedade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/204040

Tripanosomose por Trypanosoma evansi "mal-de-cadeiras": uma avaliacao sobre fatores de risco no Pantanal.
Provedor de dados: 14
Autores: SILVA, R. A. M. S.; BARROS, A. T. M.; DAVILA, A. M. R.; RAMIREZ, L.; SAHIB, C. A.; FERREIRA, M. S. J.; HERRERA JUNIOR, H. M.
Este estudo foi executado de janeiro a julho de 1994 quando varios casos de tripanosomose ocorreram em caes e cavalos no Pantanal. Amostras de sangue coletadas de cavalos doentes (n = 119) e caes (n = 4) foram examinadas pela tecnica de centrifugacao do microhematocrito e inoculacao em camundongos. Todos os caes e 116 cavalos (97%) estavam infectados com o Trypanosoma evansi. Os surtos de tripanosomose ocorreram durante ou logo apos a estacao dos tabanideos na regiao. O frequente transito de animais infectados pelas propriedades, poderia contribuir para a disseminacao da doenca pelos vetores. Outros fatores de risco como, a presenca de animais silvestres, reservatorios e a transmissao por morcegos hematofagos sao discutidos.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Parasita; Tripanosomose; Mal-de-cadeiras; Disease.; Animal; Doença.; Brazil; Pantanal; Trypanosoma evansi.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/791027

Palestras e resumos...
Provedor de dados: 14
Autores: ENCONTRO SOBRE PEQUENAS FRUTAS E FRUTAS NATIVAS DO MERCOSUL, 6., 2014, Pelotas.
bitstream/item/102799/1/Pequenas-frutas-2014.pdf
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Pequenas frutas.; Fruticultura.; Fruta.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/740939

Efeito do diferimento sobre a produção de forragem e composição química do Capim-elefante cv. Mott.
Provedor de dados: 14
Autores: COSTA, N. de L.; OLIVEIRA, J. R. da C.; TOWNSEND, C. R.
Procurou-se avaliar o efeito do diferimento sobre a producao e composicao quimica da forragem do capim-elefante anao (Pennisetum purpureum cv. Mott) nas condicoes ecologicas de Porto Velho, Rondonia. Os resultados obtidos sugerem a viabilidade do diferimento de pastagens de capim-elefante cv. Mott, no final do periodo chuvoso, de modo a acumular forragem para a suplementacao dos rebanhos durante o periodo seco; Diferimento e abril com utilizacoes em junho e julho proporcionou forragem com maiores teores de proteina bruta; Maiores coeficientes de DIVMS foram registrados com o diferimento em abril e utilizacao em junho; Visando conciliar rendimento e qualidade de forragem, recomenda-se o seguinte esquema:diferimento em marco para utilizacoes em junho e julho...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Diferimento; Pennisetum purpureum cv Mott; Embrapa Rondônia; Porto Velho (RO); Rondônia; Amazônia Ocidental; Western Amazon.; Gramínea Forrageira; Capim Elefante; Campo Experimental.; Produção; Composição Química; Forragem; Chemical composition; Forage production.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699917

Ciclo inicial de seleção entre e dentro de famílias de meios-irmãos na população de milho CMS 52 nos tabuleiros de Sergipe.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de; GUIMARAES, P. E. de O.; SANTOS, M. X. dos.
bitstream/item/87368/1/CPATC-PESQ.-AND.-08-96.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Melhoramento genético; Tabuleiros; Brasil; Sergipe; Maize; Tableland.; Milho; População; Seleção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/358446

Recomendações técnicas para a cultura da soja no Paraná 1996/97.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
Situacao mundial da soja; Exigencias climaticas; Rotacao de culturas; Manejo de solo; Correcao e manutencao da fertilidade do solo; Cultivares; Cuidados na aquisicao e na utilizacao da semente; Tratamento e inoculacao de sementes; Instalacao da lavoura; Controle de plantas daninhas; Manejo de pragas; Doencas e medidas de controle; Retencao foliar ("haste verde"); Colheita; Tecnologia de sementes.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Aspecto economico; Rotacao; Cultivar; Planta daninha; Inseto praga; Perdas na colheita; Brasil; Parana; Soybean; Economic situation; Variety; Seed; Weed; Insect pest; Disease; Harvesting losses.; Fertilidade do Solo; Doença; Semente; Soja.; Brazil; Crop rotation; Soil fertility.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/449558

Principais parasitos externos de aves.
Provedor de dados: 14
Autores: PEDROSO-DE-PAIVA, D.
Acaros; Piolhos; Percevejos; Pulgas; Carrapatos; Besouros; Moscas; Produtos ectoparasiticidas e os cuidados na sua utilizacao.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Parasitos externos; External parasites.; Suíno.; Swine.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/433736

Sistemas de plantio de culturas anuais nas várzeas do Amapá.
Provedor de dados: 14
Autores: CAVALCANTE, E. da S.
Com o objetivo de avaliar sistemas de plantio com as culturas de arroz, milho, caupi e mandioca, nas varzeas do Amapá, foram conduzidos dois experimentos no município de Mazagão, Estado do Amapá, durante os anos de 1983 e 1984, em um delineamento experimental de blocos ao acaso, em solo do tipo Gley Pouco Humico hidromorfico sem uso de fertilizantes, com oito tratamentos (Sistemas de plantio) e três repetições. Na primeira fase houve semeio do arroz e posteriormente o monocultivo e/ou plantio simultaneo das demais culturas. As cultivares de arroz, milho, caupi e mandioca no ano de 1983, foram, respectivamente, IAC 1246, BR 5102, Branquinho e Pretinha. No ano seguinte a cultivar de arroz foi substituida pela Apura e a de mandioca pela Mameluca. Os melhores...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Brasil; Amapá; Maize; Cowpea.; Arroz; Feijão de Corda; Mandioca; Manihot Esculenta; Oryza Sativa; Milho; Rendimento; Várzea; Zea Mays.; Vigna Unguiculata; Cassava; Brazil; Rice; Yields.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341832

Problemas ecofisiológicos das culturas perenes incluídas nos sistemas de consórcio.
Provedor de dados: 14
Autores: MORAES, V. H. de F.
Este breve ensaio, limita-se à tentativa de formular propostas de temas de ecofisiologia, julgados importantes em relação com a produtividade agrícola das seguintes espécies: seringueira (Hevea brasiliensis Muell. Arg.), cupuaçuzeiro (Theobroma grandiflorum Schum.), coqueiro (Cocos nucifera L.), laranjeira (Citrus sinensis Osbeck), urucuzeiro (Bixa orellana L.) e pupunheira (Bactris gasipaes H.B.K.).
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Cultivo múltivo; Brasil; Floresta Tropical Úmida; Amazonia; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671733

Introducao e avaliacao de forrageiras em "cordilheira" desmatada na sub-regiao dos Paiaguas, Pantanal Mato-Grossense.
Provedor de dados: 14
Autores: COMASTRI FILHO, J. A.; POTT, A.
O presente trabalho foi conduzido, em area de "cordilheira", na parte central da sub-regiao dos Paiaguas, do Pantanal Mato-Grossense. Os solos sao formados por sedimentos arenosos aluviais e na maior parte sao de baixa fertilidade. Entre 1980 e 1985, foram introduzidas e avaliadas 51 gramineas e 105 leguminosas, com o objetivo de identificar forrageiras adaptaveis as condicoes ecologicas da regiao. Para cada cultivar e/ou especies foram utilizadas duas parcelas de 1,5 x 3,0m com adubo (CA) e sem adubo (SA). O rendimento de materia seca de CA foi superior ao de SA apenas no primeiro ano. Segundo o indice de avaliacao (IA), no dominio de 0 a 3, as forrageiras mais promissoras se encontraram nos generos Andropogon, Brachiaria e Calopogonium. Das gramineas, a...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Forrageira; Cordilheira; Tolerancia a seca; Pasture; Wetland.; Gramínea; Pastagem; Planta; Semente.; Pantanal; Grasses; Drought tolerance; Forage; Legumes.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/790955

Custos de producao do frango de corte no Brasil e Argentina.
Provedor de dados: 14
Autores: CANEVER, M. D.; TALAMINI, D. J. D.; CAMPOS, A. C.; SANTOS FILHO, J. I.; GOMES, M. F. M.
Metodologia de calculo dos custos de producao; Discussao dos resultados.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Custos; Production; Costs.; Produção; Suíno.; Swine.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/433737

Bicudo do algodoeiro: conhecer - prevenir - controlar.
Provedor de dados: 14
Autores: TEIXEIRA, C. A. D.; ALVES, P. M. P.
Historico; Caracterização e ciclo de vida; danos e amostragem; prevenção; indicações de manejo.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Brasil; Rondonia; Pest; Insect.; Algodão; Anthonomus Grandis; Inseto; Praga.; Brazil; Gossypium; Cotton.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/698632

Recomendação sobre o uso do medidor de altura de albúmen de ovos.
Provedor de dados: 14
Autores: FERREIRA, W. S.; COLNAGO, L. A.; MELO, S.; AGUA, A. F. P.
Vários são os métodos registrados na literatura para se determinar a qualidade do ovo, como, por exemplo, a medida da altura da clara. O micrômetro desenvolvido possui um sensor de deslocamento linear resistivo; o medidor de altura de albúmen de ovos foi amplamente testado com blocos de altura padrão, a fim de simular com precisão a leitura real da altura do ovo, possibilitando a detecção do erro real do instrumento, sempre dentro da faixa esperada. Ressalte-se que a leittura de um mesmo ovo foi testada por vários operadores, variando dentro do limite de mais ou menos 0.1 mm, demonstrando que a medida não depende do operador.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Medidor de altura; Albúmen.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29765

Parâmetros de crescimento da cultura do coqueiro (Cocus nucifera L.).
Provedor de dados: 14
Autores: MORAES, C. R. de A.; CRUZ, L. A. de A.
Plantas de coqueiro estabelecidas em sistemas agroflorestais foram submetidas a dois níveis de adubação associados ou não com fungos micorrízicos vesicular-arbusculares.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Cocus nucifera; Agrofloresta; Brasil; Amazonas; Agroforests; Coco; Floresta Tropical Úmida; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671749

INFORMES da avaliação de genótipos de girassol da rede oficial, 1995/96 e 1996.
Provedor de dados: 14
Caracteristicas gerais da rede oficial de avaliacao de genotipos de girassol; Resultados dos ensaios finais e intermediarios; Indicacao de genotipos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Avaliacao de genotipos; Brasil; Goias; Mato Grosso; Minas Gerais; Parana; Piaui; Rio Grande do Sul; Sao Paulo; Tocantins; Distrito Federal; Sunflower; Genotypes; Evaluation.; Cerrado; Girassol; Melhoramento; Pesquisa.; Breeding; Brazil; Research; Savannas.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/459916

Avaliação do potencial de utilização do amendoim forrageiro (Arachis sp.) para a produção de forragem e cobertura de solos no Acre.
Provedor de dados: 14
Autores: VALENTIM, J. F.; MOREIRA, P.
A necessidade de se desenvolver alternativas tecnológicas que possibilitem diversificar as pastagens através da utilização de gramíneas e leguminosas de diversos gêneros e espécies, levou a Embrapa Acre a promover este estudo com o objetivo de introduzir, avaliar e selecionar acessos de Arachis sp., adaptados às condições edafoclimáticas da região, para a produção de forragem e cobertura de solo em diferentes sistemas de produção agropecuários e silvipastoris.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Amendoim forrageiro; Potencial de utilização; Acre; Amazônia Ocidental.; Pecuária.; Pastagem; Arachis pintoi.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492235

Avaliacao do desempenho reprodutivo e estabelecimento da estacao de monta de equinos em regime de monta natural a campo no Pantanal.
Provedor de dados: 14
Autores: SERENO, J. R. B.; SANTOS, S. A.; ZUCCARI, C. E. S. N.; MAZZA, M. C. M.
O cavalo Pantaneiro caracteriza-se pela sua rusticidade e adaptacao as condicoes ecologicas do Pantanal, fruto de selecao natural por mais de dois seculos. Como animal de trabalho, constitui fator de importancia economica e social auxiliando nas producao pecuaria, alem de contribuir para a fixacao do homem na regiao. A partir de 1900, cruzamentos indiscriminados com outras racas, alem da disseminacao de enfermidades, como o "mal-de-cadeiras" (tripanosomose) e mais recentemente a anemia infecciosa equina (AIE), contribuiram para a diminuicao do seu efetivo. A AIE, enfermidade endemica para a regiao, apresenta incidencia media de 42,7% (SILVA, et al. 1995), sendo considerada, atualmente o principal fator limitante para a expansao da criacao de equino no...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Equino; Monta natural; Cavalo pantaneiro; Equine; Pantaneiro horse.; Reprodução.; Pantanal; Reproduction.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/787811

Criação de pirarucu.
Provedor de dados: 14
Autores: IMBIRIBA, E. P.; LOURENÇO JUNIOR, J. de B.; CARVALHO, L. O. D. de M.; GÓES, L. B.; ULIANA, D.; BRITO FILHO, L.
Sistematica; Distribuicao geografica; Caracteristicas da especies; Aspectos da pesca; Meio ambiente; Manejo da reproducao; Alevinagem; Alimentacao; Manejo da producao; Producao, beneficiamento e comercializacao; Aspectos economicos; Culinaria e receitas.
Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E)
Palavras-chave: Criation; Production.; Criação; Produção; Manejo; Piscicultura; Fish culture.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/100639

Diferenciação de genótipos de banana quanto a atratividade para monitoramento populacional de curculionídeos em Rio Branco, AC.
Provedor de dados: 14
Autores: FAZOLIN, M.; LEDO, A. da S.; AZEVEDO, F. F. de.
Na região de Rio Branco o consumo da banana é tradicional, fazendo parte da dieta alimentar diária de grande parte da população. Para o seu cultivo, tem-se observado um aumento na demanda por tecnologias que, visem diminuir os efeitos negativos do ataque de pragas e doenças, as quais promovem um declínio da produtividade ou até mesmo, impossibilitam o cultivo de algumas variedades. Neste particular, o moleque-da-bananeira, Cosmopolites sordidus (Germar, 1824) (Coleoptera, Curculionidae), é apontado como a principal praga. O curculionídeo, Metamasius hemipterus L., 1865, com presença frequente nesta cultura, é considerado como praga secundária em várias regiões produtoras no País, sendo a cana-de-açúcar, coqueiro e algumas gramíneas seus hospedeiros...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Musa spp; Diferenciação de genótipos; Moleque-da-bananeira; Rio Branco (AC); Acre; Amazônia Ocidental.; Broca; Banana; Cosmopolites Sordidus; Flutuação Populacional; Inseto; Praga.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492254

Instrumentos desenvolvidos no CNPDIA para congelamento de embriões.
Provedor de dados: 14
Autores: RABELLO, L. M.; CRUVINEL, P. E.
bitstream/CNPDIA/9824/1/RT01_96.pdf
Tipo: Recomendação Técnica (INFOTECA-E)
Palavras-chave: Embriões.; Congelamento.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/26388

FOLHA DA FLORESTA 9: informativo do Centro Nacional de Pesquisa de Florestas / CNPFlorestas.
Provedor de dados: 14
bitstream/item/106623/1/v.4n.90001.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cogumelaria.; Adubo Orgânico; Eucalipto; Seca dos Ponteiros.; Resíduo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/992475

Cafeicultura em Rondônia: situação atual e perspectivas.
Provedor de dados: 14
Autores: VENEZIANO, W.
O café é uma cultura tropical,de grande importância sócio-econômica, principalmente na fase de colonização de novas áreas, contribuindo para geração de riquezas e fixação do homem no campo. Em Rondônia, esta cultura apresentou grande expansão a partir de 1970, com a implantação de núcleos de colonização oficial, que vêm assentando anualmente, inúmeros produtores. Nos últimos anos, a cultura tornou-se economicamente pouco competitiva, sendo gradativamente substituída por pastagens. Entre 1990 e 1992, a área cultivada com café em Rondônia foi reduzida em torno de 14%. Dentre os fatores que vêm contribuindo para a baixa competitividade da cultura do café na região, podem-se citar os seguintes: baixa produtividade, má qualidade do produto, dificuldades de...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Rondônia; Amazônia Ocidental; Western Amazon.; Cafeicultura; Pratica Cultural; Análise Econômica.; Coffee beans; Plant cultural practices; Economic analysis.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/698625

Avaliação da laranjeira "Pera Rio" como componente de dois sistemas de cultivo, submetida a dois níveis de adubação e inoculação ou não das plantas com FMVA.
Provedor de dados: 14
Autores: ARAÚJO, R. da C.; SILVA, S. E. L. da; MORAES, C. R. de A.
O experimento foi conduzido numa área abandonada em recuperação, com o objetivo de avaliar o comportamento da laranjeira "Pera Rio" em dois sistemas de cultivo, em função dos níveis 100% e 30% de adubação com as plantas inoculadas ou não com FMVA.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Cultivo Multiplo; Floresta Tropical Úmida; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671746

Como selecionar e conservar maniva-semente de mandioca.
Provedor de dados: 14
Autores: BEZERRA, V. S.
Seleção de hastes; Preparo de material; Quantidade de material necessário para plantio; Conservação da maniva-semente.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Amapá; Mandioca; Produção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/344895

Anais...
Provedor de dados: 14
Autores: SEMINÁRIO SUL-BRASILEIRO DE INFORMÁTICA NA AGRICULTURA, 1., 1996, Passo Fundo.
bitstream/item/126692/1/ID-7051.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agricultura; Informática.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/818820

Avaliação agronômica de cultivares de sorgo forrageiro nos cerrados de Rondônia.
Provedor de dados: 14
Autores: COSTA, N. de L.
Avaliou-se desempenho agronomico de cultivares de sorgo forrageiro, visando selecionar as mais produtivas e adaptadas as condicoes edafoclimaticas dos cerrados de Rondonia. Conclui-se que: Cultivares de sorgo forrageiro mais produtivas foram Contimel 02, Pioneer 855-F, BR 507, AG 2001, Contisilo02, AG 2002 e CMSXS 648; Maiores teores de PB foram obtidos com cultivares Contimel 02, CMSXS 648, AG 2004, Contisilo 02 e Pioneer 855-F; Considerando-se rendimento e qualidade da forragem, as cultivares mais promissoras para condicoes ecologicas dos cerrados de Rondonia foram Contimel 02, Pioneer 855-F, Contisilo 02, BR 507, AG 2001, CMSXS 648 e AG 2002.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Embrapa Rondônia; Vilhena (RO); Rondônia; Amazônia Ocidental; Western Amazon.; Sorghum Bicolor; Sorgo Forrageiro; Características Agronômicas; Comportamento de Variedade; Cerrado; Fertilidade do Solo; Aclimatação; Condição Ambiental; Campo Experimental.; Rendimento; Cerrado soils; Soil fertility; Acclimation; Environmental factors; Variety trials; Agronomic traits; Crop yield.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699896

Relatório de viagem.
Provedor de dados: 14
Autores: CRAVO, M. da S.; IZEL, A. C. U.
Participacao no Ciclo de Debates, com apresentacao de proposta de atividades do CPAA junto as comunidades dos sete municipios do alto Solimoes, AM.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Solimoes (Rio); Desenvolvimento Rural; Política de Desenvolvimento; População Rural; Projeto de Desenvolvimento.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668136

Sistema Estadual de Pesquisa Agropecuária - SEPA: revitalização de um mecanismo de integração e parceria institucional.
Provedor de dados: 14
Autores: RIBEIRO, O. C.
SEPA; Abordagem conceitual; Importância; Objetivo geral; Diretrizes; Organização e operacionalização; O papel da EMBRAPA em relação ao SNPA e aos SEPAs.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Agropecuária; Cooperação institucional; SEPA; Partnerships; Institutional cooperation.; Parceria.; Agriculture; Research.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/98269

Introducao de tecnologias na criacao de bovino de corte no Pantanal - sub-regiao dos Paiaguas.
Provedor de dados: 14
Autores: ALMEIDA, I. L. de; ABREU, U. G. P. de; LOUREIRO, J. M. F.; COMASTRI FILHO, J. A.
O trabalho foi baseado no acompanhamento tecnico da fazenda Campo Eunice, localizada na sub-regiao dos Paiaguas, no periodo de maio/91 a maio/95, onde foram realizados oito "trabalhos de gado", dois a cada ano (maio/junho e novembro/dezembro). As tecnologias implantadas e/ou adaptadas foram: monta controlada, formulacao mineral propria para a sub-regiao, desmama antecipada e everminacao estrategica dos bezerros desmamados. As vacas foram identificadas atraves de numeracao e os touros submetidos a dois exames andrologicos durante o periodo. Em cada "trabalho de gado" as femeas que passavam pelo curral eram visualmente classificadas como "criando/mojando" ou "solteira", proporcionando o acompanhamento de seu desempenho produtivo e reprodutivo, permitindo o...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bovino de corte; Paiaguas; Brasil; Beef cow; Bovine; Breed; Management.; Criação; Manejo; Tecnologia.; Brazil; Pantanal; Beef cattle; Technology.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/792180

Estudo dos solos do município de Rio Grande.
Provedor de dados: 14
Autores: CUNHA, N. G. da; SILVEIRA, R. J. da C.; SEVERO, C. R. S.
bitstream/item/41404/1/Rio-Grande.pdf;  bitstream/item/41405/1/mapa-geomorfologia-e-solos.pdf;  bitstream/item/41406/1/mapa-solos.pdf;  bitstream/item/41407/1/mapa-uso-da-terra.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Caracterização; Rio Grande; EMBRAPA; Centro de Pesquisa Agropecuária de Clima Temperado(Pelotas; RS).; Conservação; Geomorfologia; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/737762

Impacto dos investimentos em pesquisas realizadas pela EMBRAPA: o caso do cajueiro anão precoce.
Provedor de dados: 14
Autores: PIMENTEL, C. R. M.
Impacto dos investimentos em pesquisas realizadas pela EMBRAPA: o caso do cajueiro anao-precoce.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cajueiro anao-precoce.; Investimento; Pesquisa.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/419912

Avaliação de famílias F5 de arroz de sequeiro em Rio Branco - Acre.
Provedor de dados: 14
Autores: OLIVEIRA, M. N. de; BRESEGHELLO, F.
A cultura de arroz no Estado do Acre é conduzida sob regime de "sequeiro favorecido", no que se refere à pluviosidade. Há uma grande procura no mercado consumidor pelo arroz da classe longo fino ("agulhinha"), de boa aparência, antes e depois do cozimento e de alto rendimento na panela. As cultivares tradicionalmente plantadas no Acre produzem grãos da classe longo, cuja procura está em declínio, incluindo-se a variedade Xingu, apesar de bem adaptada e como bom desempenho em solos da baixa fertilidade. Com o desenvolvimento de variedades melhoradas, adaptadas às condições de clima, solo em manejo da região, é possível aumentar a produtividade de cultura e, ao mesmo tempo, atender às exigências do mercado local quanto à qualidade. O aumento da produtividade...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Arroz de sequeiro; Cultura; Seleção de plantas; Melhoramento de variedades; Rio Branco (AC); Acre; Amazônia Ocidental.; Produtividade; Sistema de Cultivo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492237

Principais viroses da cultura do melão.
Provedor de dados: 14
Autores: LIMA, M. F.
Mosaico do pepino (Cucumber Mosaic Virus - CMV); Mosaico da melancia-1 (Papaya Ringspot Virus - PRSV-W ou watermelon mosaic virus I - WMV-I); Mosaico da melancia II (Watermelon mosaic virus-II - WMV-II); Mosaico amarelo da zucchini (Zucchini Yellow mosaic virus-ZYMV); Mosaico da abóbora (Squash Mosaic virus - SqMV); Sintomas; Agente causal; Epidemiologia; Controle.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Mosaico do pepino; Doença; Melão; Vírus; Cucurbitaceae; Fruta Cucurbitácea; Melons.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/161051

Resumos...
Provedor de dados: 14
Autores: SEMINÁRIO INTERNACIONAL SOBRE PIMENTA-DO-REINO E CUPUAÇU, 1., 1996, Belém, PA.
bitstream/item/65647/1/CPATU-Doc88.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Melhoramento genético; Negócio agrícola; Brasil; Cupuassu; Seedling; Pest of plants; Plant diseases; Fertilizer.; Adubação; Cupuaçu; Doença de Planta; Fruta; Industrialização; Muda; Pimenta do Reino; Piper Nigrum; Praga de Planta; Theobroma Grandiflorum.; Sistema de Cultivo; Amazonia; Agribusiness; Fruits.; Breeding; Cropping systems.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/393541

Comparação de espécies florestais nativas da Mata Atlântica de Sergipe.
Provedor de dados: 14
Autores: SIQUEIRA, E. R. de; REGO, G. M.; RIBEIRO, F. E.; SILVA, A. A. G. da.
bitstream/item/87370/1/CPATC-PESQ.-AND.-10-96.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Mata Atlântica; Tubuleiros costeiros; Baixada litorânea; Brasil; Sergipe; Coastal tablelands.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/358574

Cultivo dos citros.
Provedor de dados: 14
Autores: CUNHA SOBRINHO, A. P. da; MAGALHÃES, A. F. de J.; NASCIMENTO, A. S. do; SANTOS FILHO, H. P.; SOUZA, L. D.; PASSOS, O. S.; SOARES FILHO, W. dos S.; COELHO, Y. da S.
O trabalho faz referências ao clima e solos mais apropriados para os citros; bem como a um conjunto de praticas recomendadas para a exploração comercial da cultura, contemplando a indicação de variedades copa, porta-enxertos, o controle de pragas e doenças, culturas intercalares, colheita e comercialização.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Tratos culturais; Lima acida; Porta-enxerto; Coeficiente técnico.; Laranja; Limão; Tangerina.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/637576

Recomendação sobre o uso do ultra-som para diagnóstico de prenhez de bovinos e equinos
Provedor de dados: 14
Autores: NOVAES, A. P. de; BISCEGLI, C. I.
bitstream/item/119621/1/digitalizar0006.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Ultra-som.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/44908

Avaliação da eficiência agronômica do hiperfosfato (Gafsa) em relação ao superfosfato simples.
Provedor de dados: 14
Autores: OLIVEIRA, O. L. P. de; COUTO, A. C. A. do; ACUNHA, J. B. V.
A grande maioria dos solos do RS são deficientes em fósforo. Esta deficiência reflete-se negativamente na produção das culturas e nas espécies forrageiras cultivadas, tornando assim, indispensável à correção dos solos com fertilizantes fosfatados.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Deficiência; Fertilizante; Pastagem; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/226062

Produtividade de forragem e persistência de Stylosanthes spp. em Rio Branco, Acre.
Provedor de dados: 14
Autores: VALENTIM, J. F.; MOREIRA, P.
Este estudo tem como objetivo avaliar a produtividade e a persistência de cultivares e acessos de Stylosanthes spp. nas condições ambientais de Rio Branco, Acre.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Stylosanthes spp; Persistência; Rio Branco (AC); Acre; Amazônia Ocidental.; Leguminosa Forrageira; Pastagem; Pecuária; Produtividade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492171

Comportamento do algodoeiro herbaceo na regiao dos cerrados piauienses.
Provedor de dados: 14
Autores: RIBEIRO, J. L.
bitstream/item/97545/1/PAND670001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Sudoeste piauiense; Piaui; Brasil.; Algodão Herbáceo; Gossypium Hirsutum; Produtividade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/53714

O gafanhoto do Mato Grosso: balanço e perspectivas de 4 anos de pesquisas, 1992-1996.
Provedor de dados: 14
Autores: MIRANDA, E. E. de; LECOQ, M.; PIEROZZI JR. I.; DURANTON, J.-F.; BATISTELLA, M.
Informações sobre a compreensão das relações entre a ocupação (agrícola, pecuária ou tradicional) das terras e as pululações acridianas; a explicação do detrerminismo das pululações; o esclarecimento de numerosos pontos da biologia e da ecologia do gafanhoto; a cartografia dos biótipos acridianos.
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Acridídeos; Biótopo.; Biologia; Ecologia; Gafanhoto; Meio Ambiente.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/16721

Instituto de Pesquisas e Experimentação Agropecuárias do Norte - IPEAN: ligeiros tópicos sobre sua história, organização e realização.
Provedor de dados: 14
Autores: IPEAN.
bitstream/item/197886/1/FL00637.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agropecuária; IPEAN; Pará; Brasil; Research institution; Agricultura; Historia; Instituição de Pesquisa; Amazonia; Agriculture; History.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374613

Mosca branca: danos, importância econômica e medidas de controle.
Provedor de dados: 14
Autores: HAJI, F. N. P.; ALENCAR, J. A. de; LIMA, M. F.
Trata sobre a mosca branca: distribuição geográfica e plantas hospedeiras, sintomas, danos e importância econômica, medidas de controle.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle; Importância econômica; White fly; Injury; Damage; Economic consequence; Host; Plant; Insect.; Inseto; Dano; Mosca Branca; Planta Hospedeira.; Aleyrodidae.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132234

Efeito de nitrogenio mineral e leguminosas sobre a producao de forragem e composicao quimica de capim elefante cv. Cameroom.
Provedor de dados: 14
Autores: COSTA, N. de L.
O desempenho agronomico de capim elefante (Pennisetum purpureum cv. Cameroon) em cultivo puro fertilizado com nitrogenio (0,50 e 100 Kg de N/ha/ano) ou em consorciacao com tres leguminosas forrageiras tropicais (Centrosema macrocarpum CIAT-5062, Pueraria phaseoloides CIAT-9900 e Desmodium ovalifolium CIAT-350) foi avaliado em ensaio consuzido em Ouro Preto d'Oeste, Rondonia. A fertilizacao nitrogenada incrementou significativamente os rendimentos de materia seca (MS) e proteina bruta (PB) do capim elefante em cultivo puro. As tres consorciacoes mostraram-se compativeis, em termos de rendimento de MS e PB, composicao botanica e persistencia das leguminosas. As consorciacoes com D. ovalifolium CIAT-350 e P. phaseoloides CIAT-9900 proporcionaram rendimentos...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Variedade cameroon; Pennisetum purpurium; Brasil; Rondonia; Ouro Preto do Oeste.; Capim Elefante; Composição Química; Forragem; Leguminosa.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/700883

Epidemiologia dos nematodeos gastrintestinais em bovinos de corte nos cerrados e o controle estrategico no Brasil.
Provedor de dados: 14
Autores: BIANCHIN, I.
bitstream/item/104625/1/Epidemiologia-dos-nematodeos.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bovino de corte; Nematodeo gastrintestinal; Controle; Aspecto economico; Rio Grande do Sul; Santa Catarina; Brasil; Brazilian savannas; Economic situation; Therapy.; Cerrado; Epidemiologia; Pesquisa; Tratamento.; Pantanal; Beef cattle; Epidemiology; Brazil; Nematode control; Research.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/316836

Conceitos básicos do experimento de campo.
Provedor de dados: 14
Autores: FELDMANN, F.; GASPAROTTO, L.; LIEBEREI, R.; PREISINGER, H.
O principal objetivo deste projeto é desenvolver sistemas que sejam ecológico, social e economicamente viáveis, adaptados às condições úmidas da Amazônia tropical. Refere-se a um experimento, recultivando uma área em pousio de um seringal abandonado, estabelecendo consórcio de plantas selecionadas, principalmente espécies perenes.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Floresta Tropical Úmida; Amazonia; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671731

Equipamento para registro do período de molhamento foliar.
Provedor de dados: 14
Autores: COLNAGO, L. A.; CRESTANA, S.
A presença de água livre na superfície das plantas e a temperatura ambiente são os fatores mais importantes para o desenvolvimento de doenças fúngicas e/ou bacterianas. Com o conhecimento do período em que a planta ficou molhada, a temperatura média e as características de cada patógeno, é possível fazer uma boa previsão sobre o aparecimento ou não de uma doença especifica. Uma previsão confiável passibilita fazer aplicações racionais dos defensivos, com redução de custos operacionais e menor poluição ambiental. Sem essas informações, os agricultores aplicam os defensivos mesmo quando as doenças não tem condições de propagação.
Tipo: Recomendação Técnica (INFOTECA-E)
Palavras-chave: Doenças fúngicas; Bacteriana; Defensivos.; Patógeno.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/28914

TRIGO EMBRAPA 40.
Provedor de dados: 14
bitstream/item/131176/1/FD-0016.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: BAG; Cultivar; Descrição.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/842629

Engorda de bovinos em confinamento (Aspectos gerais).
Provedor de dados: 14
Autores: CARDOSO, E. G.
Este trabalho aborda de forma sucinta os diversos aspectos envolvidos na terminação de bovinos em confinamento. Trata da localização e infra-estrutura necessárias; fala dos tipos de animais que podem ser utilizados, fazendo referencia a relação entre porte da raça e tempo necessário para engorda; descreve as categorias de alimentos e as regras gerais do manejo da alimentação. Por fim, refere-se aos problemas que podem ocorrer durante o confinamento e chama a atenção sobre a necessidade do controle e gerenciamento eficaz para a melhoria do negócio.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bovino de corte; Sanidade; Fattening; Management; Health; Feeding.; Alimentação; Confinamento; Engorda; Manejo.; Beef cattle; Feedlots.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/317195

Conservação pós-colheita: frutas e hortaliças.
Provedor de dados: 14
Autores: GOMES, M. S. de O.
Valor nutritivo das hortaliças e frutas; O ciclo dos nutrientes e as plantas; Conservação de hortaliças e frutas; Fatores internos ou biológicos da conservação pós-colheita; Fatores externos ou ambientais da conservação pós-colheita; Práticas adequadas a conservação pós-colheita; Colheita; Preparo das hortaliças e frutas para comercialização; Pré-resfriamento; Armazenamento; Transporte; Distúrbios que podem ocorrer na p,óos-colheita; Danos mecânicos; Danos fisiológicos; Desenvolvimento e disseminação de microorganismos; Abastecimento e higiene de hortaliças.
Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E)
Palavras-chave: Conservação tecnológica; Fruta; Hortaliça.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/114121

Espaçamento e adubação nitrogenada em melancia. II. Efeito sobre a qualidade dos frutos.
Provedor de dados: 14
Autores: GARCIA, L. F.
bitstream/item/72664/1/CPAMN-PESQ.-AND.-66-96.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Adubação; Fertilizante; Melancia; Qualidade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/78285

Instrumentação para automação de processo de fermentação semi-sólida.
Provedor de dados: 14
Autores: BERTUCCI NETO, V.; COURI, S.
O mercado mundial de enzimas industriais foi estimado em 625 milhões de dólares, em 1990. Cerca de 62 % das enzimas produzidas são usadas pela indústria de alimentos, 33% em detergentes e 5% nas indústrias têxtil e de couro. Das enzimas produzidas, 80% são hidrolíticas, utilizadas para a despolimerização I de produtos naturais. Destas, 60% são proteases, 30% carboidrases, 3% lipases e o restante enzimas especializadas tais como as pectinases. Na indústria de alimentos o maior uso está no processamento do amido seguido pela produção de queijos, processamento de sucos de frutas e vegetais, clarificação de sucos e vinhos, panificação e cervejaria. Muitos produtos alimentícios fermentados no Oriente são obtidos em Isubstrato sólido como o tempeh, nato, miso,...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: ENZIMAS INDUSTRIAIS; FERMENTAÇÃO SEMI-SÓLIDA.; Automação.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/28643

Uso de ressonância magnética nuclear na caracterização de ácidos húmicos de solos sob diferentes manejos.
Provedor de dados: 14
Autores: MARTIN NETO, L.; COLNAGO, L. A.; BONAGAMBA, T. J.; PANEPUCCI, H. C.; VIEIRA, E. M.; MIYAZAWA, M.
bitstream/CNPDIA/9813/1/PA08_96.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Ressonância magnética nuclear; Ácidos húmicos.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27025

Diagnóstico ambiental dos municípios de Santa Maria da Boa Vista e Lagoa Grande - Pernambuco (Estudos preliminares).
Provedor de dados: 14
Autores: ARAUJO FILHO, J. C. de; SILVA, F. B. R. e; MEDEIROS, L. A. R.; LEITE, A. P.; SANTOS, J. C. P. dos.
Metodologia da espacialização ambiental; Principais unidades ambientais, limitações e evocações das terras; Tabuleiros interioranos - Chapadas; Tabuleiros interioranos dissecados; Pediplanos; Superfícies avermelhadas do cristalino; Maciços residuais - serras e serrotes; Várzeas e terraços aluvionares; Unidades de paisagem, área, percentagem em relação à área total estudada e classes de terra para irrigação.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Potencial; Atividade agrícola; Florestal; Preservação ambiental; Zoneamento agroecológico; Recursos naturais; Pernambuco; Santa Maria da Boa Vista; Lagoa Grande; Pecuária; Terra; Solo; Natural resources.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/149573

Pinteiros cobertos - estufas para a redução da síndrome ascítica em frangos de corte.
Provedor de dados: 14
Autores: JAENISCH, F. R. F.; OLIVEIRA, P. A. V. de; BARIONI JUNIOR, W.; BERSCH, F.; GIROTTO, A. F.; AVILA, V. S. de.
bitstream/item/58545/1/CUsersPiazzonDocuments216.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Chicken; Disease; Ascitis.; Ascite; Doença; Pinto.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/433742

Avaliacao de cultivares e espacamento de melancieira (Citrullus lanatus (Thunb.) Matsum &amp; Nakai).
Provedor de dados: 14
Autores: ARAUJO, E. C. E.; SOUSA, V. F. de; LIMA, P. S. da C.; RITSCHEL, P. S.
Tipo: Folhetos
Palavras-chave: Parnaiba; Piaui; Brasil; Citrullus Lanatus; Espaçamento; Irrigação; Melancia; Produção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/49569

Mastite caprina: algumas medidas de prevenção.
Provedor de dados: 14
Autores: SILVA, E. R. da; ALVES, F. S. F.; PINHEIRO, R. R.
bitstream/item/26694/1/COT-31.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Prevention; Caprino; Mamite; Doença animal; Profilaxia; Goats; Mastitis; Animal diseases.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/515153

Doenças do dendezeiro em plantio experimental no município de Rio Preto da Eva, AM.
Provedor de dados: 14
Autores: ARAÚJO, A. E. de; ARAÚJO, J. C. A. de; NUNES, C. D. M.; CUNHA, R. N. V. da.
No período de 1987 a 1992, foi adotado um programa de ronda fitossanitária, no qual todas as plantas foram visitadas, pelo menos uma vez por mês, e elaborado um mapa do estado fitossantário de cada planta, obtido da observação visual. De posse do mapeamento geral das áreas experimentais, procedeu-se uma nova visita àquelas plantas que apresentaram anormalidades, as quais foram examinadas e estabelecidos procedimentos de diagnose visando a identificação das causas.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Controle; Brasil; Amazonas; Rio Preto da Eva; Oil palm; Diseases; Control.; Dendê; Elaeis Guineensis; Doença; Praga.; Pests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665021

Instruções para o cultivo da acerola.
Provedor de dados: 14
Autores: BARBOZA, S. B. S. C.; TAVARES, E. D.; MELO, M. B. de.
bitstream/item/44461/1/CPATC-DOCUMENTOS-6-INSTRUCOES-PARA-O-CULTIVO-DA-ACEROLA-FL-13124.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cereja das antilhas; Cultivo; Barbados cherry; Cultivation.; Acerola.; Malpighia emarginata.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/359022

Confinamento de bovinos.
Provedor de dados: 14
Autores: THIAGO, L. R. L. de S.
Instalações; Máquinas e equipamentos; Animais; Alimentação; Manejo sanitário; Coeficientes de produção.
Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E)
Palavras-chave: Food.; Bovino; Confinamento; Nutrição animal; Gado de corte; Beef cattle; Cattle.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/100641

Doencas e pragas da mamoneira - (Ricinus communis L.) e seu controle.
Provedor de dados: 14
Autores: BATISTA, F. A. S.; LIMA, E. F.; SOARES, J. J.; AZEVEDO, D. M. P. de.
Doencas da mamoneira e seu controle; Pragas da mamoneira e seu controle.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Murcha Fusarium; Podridao Botryodiplodia; Mancha; Controle; Percevejo verde; Vermelho; Lagarta Folha; Ricinus communis L; Botryolinia ricini; Brasil; Nordeste; Castor Bean; Disease; Control; Pest.; Ácaro Rajado; Cigarrinha; Doença; Hospedeiro; Fusarium Oxysporum; Mamona; Macrophomina Phaseolina; Mofo Cinzento; Praga; Podridão; Tombamento.; Cercospora; Alternaria; Macrophomina.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/269442

Produção de alimentos: o potencial dos cerrados.
Provedor de dados: 14
Autores: MACEDO, J.
Os cerrados brasileiros; Ocupação a terra; A geração da tecnologia; Antecedentes; O planejamento estratégico; Tecnologias desenvolvidas; Tecnologias a serem lançadas nos próximos cinco anos; Convênios internacionais; Retorno dos investimentos em pesquisa; Uso atual dos cerrados; Uso potencial dos cerrados.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Productivity; Development; Geração; Production; Região; Region.; Alimento; Agricultura; Cerrado; Ocupação; Produção de Alimentos; Produtividade; Produção; Tecnologia; Solo; Vegetação.; Agriculture; Brazil; Food production; Savannas; Technology; Soil; Vegetation.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/551820

Efeito do diferimento estacional sobre a produção e composição botânica de dois campos naturais, em Bagé, RS.
Provedor de dados: 14
Autores: GONÇALVES, J. O. N.; GIRARDI-DEIRO, A. M.; GONZAGA, S. S.
Na região sudoeste do Estado do Rio Grande do Sul, o sistema de criação extensivo de bovinos de corte e ovinos, baseia-se na utilização de campo natural como principal recurso forrageiro.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bagé; Rio Grande do Sul.; Campo; Pastejo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/226061

Girassol: cultura alternativa para a agricultura piauiense.
Provedor de dados: 14
Autores: RIBEIRO, J. L.
bitstream/item/96003/1/CT650001.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Potencial; Piaui; Brasil.; Girassol; Pesquisa; Produtividade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/53705

Efeitos de diferentes açucares na germinação do polén de Araucaria angustifolia.
Provedor de dados: 14
Autores: SOUSA-LANG, V. A. de; PINTO JUNIOR, J. E.
bitstream/CNPF-2009-09/16559/1/pesq-andam-07.PDF
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Araucária Angustifólia; Pólen.; Pollen.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290790

Melhoramento da Mamoneira (Ricinus Communis L.)
Provedor de dados: 14
Autores: MOREIRA, J. de A. N.; LIMA, E. F.; FARIAS, F. J. C.; AZEVEDO, D. M. P. de.
Origem e classificacao; Biologia floral; Melhoramento genetico; Aspectos importantes na utilizacao e mutiplicacao de sementes melhoradas; Cultivares de mamoneira recomendadas para o plantio.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Castor bean.; Mamona; Melhoramento; Ricinus Communis.; Breeding.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/269457

Informações sobre cultivares de trigo recomendadas para plantio no Rio Grande do Sul em 1996.
Provedor de dados: 14
Autores: MOREIRA, J. C. S.; GOMES, E. P.; SOUSA, C. N. A. de.
bitstream/item/122441/1/FL-06731.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Recomendação; Cultivar; Brasil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849709

Avaliação e seleção de clones de capim-elefante sob corte para os cerrados do Amapá.
Provedor de dados: 14
Autores: MEIRELLES, P. R. de L.; MOCHIUTTI, S.
O presente trabalho tem como objetivo, selecionar sob condições de corte, genotiposa de capim-elefante (Pennisetum purpureum, Schum) para as regiões de cerrado do Amapá.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Genotipos; Brasil; Amapá; Genotypes.; Capim Elefante; Clone; Cerrado; Pennisetum Purpureum.; Brazil; Clones; Savannas.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341844

Desempenho produtivo e reações fisiológicas de ovinos deslanados em sistema silvipastoril.
Provedor de dados: 14
Autores: MAGALHAES, J. A.; COSTA, N. de L.; PEREIRA, R. G. de A.; TOWNSEND, C. R.; TAVARES, A. C.
Procurou-se avaliar os parametros fisiologicos, determinar tolerancia ao calor e peformance produtiva de ovinos deslanados mantidos sob seringal cultivado. Conclui-se que: Os ovinos deslanados foram tolerantes as condicoes climaticas do verao do tropico umido e o sombreamento propiciado pela seringueira amenizou acentuadamente os efeitos depressivos de estresse termico; Apesar do sombreamento ter reduzido significativamente a disponibilidade de forragem, os ovinos deslanados apresentaram desempenho produtivo satisfatorios em relacao aqueles a sombra.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Ovino deslanado; Sistema silvipastoril; Rubber tree; Embrapa Rondônia; Porto Velho (RO); Rondônia; Amazônia Ocidental; Western Amazon.; Campo Experimental.; Resistência; Calor; Seringueira; Shearing (defleecing); Silvopastoral systems; Heat tolerance; Animal performance.; Sheep.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699909

Cultivares de milho na região nordeste brasileira no ano de 1994.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de; SANTOS, M. X. dos; LEAL, M. de L. da S.; CARDOSO, M. J.; MONTEIRO, A. A. T.; ANTERO NETO, J. F.; LIRA, M. A.; TAVARES FILHO, J. J.; BRANDAO FILHO, A. R. de M.; ALBUQUERQUE, M. M. de; CARVALHO, B. C. L. de; MARQUES, H. da S.
bitstream/item/69444/1/CPATC-COM.-TEC.-08-96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultivar; Brasil; Nordeste; Maize.; Milho; Zea Mays.; Corn.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/358084

Diagnóstico, planejamento ecológico e análise da adubação verde nos agroecossistemas de São Carlos, SP.
Provedor de dados: 14
Autores: PINTO, L. F. G.; CRESTANA, S.
bitstream/CNPDIA/9822/1/CiT04_96.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: São Carlos; Planejamento ecológico.; Adubação Verde.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27109

Tomógrafo de resolução micrométrica para estudos do sistema água-solo-planta.
Provedor de dados: 14
Autores: MACEDO, A.; VAZ, C. M. P.; CRUVINEL, P. E.; CRESTANA, S.
bitstream/CNPDIA/9811/1/PA01_96.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Tomógrafo; Resolução micrométrica; Sistema água-solo-planta.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29703

A cultura do girassol.
Provedor de dados: 14
Autores: CASTRO, C. de; CASTIGLIONI, V. B. R.; BALLA, A.; LEITE, R. M. V. B. de C.; KARAM, D.; MELLO, H. C.; GUEDES, L. C. A.; FARIAS, J. R. B.
Exigencias climaticas; Escolha de area; Correcao da acidez; Preparo do solo; Controle de plantas daninhas; Adubacao; Epoca de semeadura; Espacamento e densidade; Doencas; Pragas; Colheita; Custo de producao e rentabilidade da cultura do girassol.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Girassol; Helianthus Annuus.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445832

Anais...
Provedor de dados: 14
Autores: REUNIÃO NACIONAL DE PESQUISA DE FEIJÃO, 5., 1996, Goiânia.
O Centro Nacional de Pesquisa de Arroz e Feijão (CNPAF), da EMBRAPA, e a Empresa de Assistência Técnica e Extensão Rural de Goiás (EMATER-GO) promovem a V Reunião Nacional de Pesquisa de Feijão (RENAFE), com o objetivo de debater os conhecimentos e tecnologias gerados pela pesquisa, nos últimos anos, com a cultura do feijoeiro, enfatizando também temas relacionados a transferência de tecnologia, aspectos nutricionais, industrialização, classificação, comercialização e novos avanços nos sistemas produtivos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Congresso; Bean; RENAFE.; Feijão; Phaseolus Vulgaris; Pesquisa.; Brazil; Research.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/203703

Deficiencia de manganes em lavouras de soja.
Provedor de dados: 14
Autores: SANZONOWICZ, C.
bitstream/item/121497/1/gtec-01.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Deficiência Nutricional; Cerrado; Glycine Max; Manganês; Soja.; Manganese; Nutrient deficiencies; Soybeans.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/545309

Recomendações sobre a utilização da técnica de derivação para aumento de resolução em espectros em FTIR de proteínas.
Provedor de dados: 14
Autores: BERNARDES FILHO, R.; FORATO, L. A.; COLNAGO, L. A.
Um dos principais objetivos da determinação das estruturas tridimensionais de proteínas é fornecer subsídios para a compreensão dos processos biológicos, como os mecanismos de reações enzimáticas, da ação de anticorpos, transportes de oxigênio e transporte através de membranas, dentre outros.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Espectroscopia; Estruturas tridimensionais; Fenômenos de transporte.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29007

Cultura do girassol: tecnologia de produção.
Provedor de dados: 14
Autores: CASTRO, C. de; CASTIGLIONI, V. B. R.; BALLA, A.
Escolha de area e preparo do solo; Correcao da acidez; Adubacao; Epoca de plantio; Plantio; Densidade; Controle de plantas daninhas; Doencas e pragas; Colheita.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Preparo do solo; Semeadura direta; Densidade; Planta daninha; Brasil; Parana; Sunflower; Production; Disease; Pest.; Acidez do Solo; Adubação; Colheita; Época de Semeadura; Doença; Girassol; Plantio Direto; Praga; Produção.; Fertilizer application; Harvesting; Brazil; Density; No-tillage; Soil pH; Sowing date; Tillage; Weeds.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/459921

Vida de prateleira do palmito de pupunheira (Bactris gasipaes H.B.K.) processado em três tempos de apertização.
Provedor de dados: 14
Autores: MIRANDA, R. de M.; LIMA, H. C. de; FALCÃO, P. de T.; SILVEIRA, J. S.
Para otimizar a producao industrial de palmito de pupunheira visando um produto de boa aceitacao pelo consumidor, foi realizado teste sensorial do palmito envasado, segundo tres tempos de apertizacao (30, 45 e 60 minutos), monitorado o pH, a acidez titulavel e o crescimento de colonia de bolores e leveduras, durante dez meses. Os resultados da prova de degustacao nao revelaram diferenca significativa pelo teste de Tukey (P&lt;0,01). O pH manteve-se dentro de niveis aceitaveis (menor que 4,6), eliminado o risco de producao de toxinas por Clostridium botulinum. A acidez variou de 8% a 6,7%, ao fim de dez meses, para os tres tramentos. O numero de colonia de bolores e leveduras manteve-se dentro do limite permitido pela legislacao pertinente. Os tres tempos...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Teste; Brasil; Amazonas.; Bactris Gasipaes; Palmito; Pupunha; Vida de Prateleira.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665308

Efeito de fungicidas no controle do mofo preto do cajueiro.
Provedor de dados: 14
Autores: CARDOSO, J. E.; FREIRE, F. das C. O.; SOUSA, R. N. M. de.
bitstream/CNPAT-2010/11929/1/Pa-020.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cajueiro; Prejuízo; Controle.; Mofo Preto.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/663053

Efeito da granulometria sobre o conteúdo energético do milho para frangos de corte.
Provedor de dados: 14
Autores: ZANOTTO, D. L.; GUIDONI, A. L.; ALBINO, L. F. T.; BRUM, P. A. R. de; FIALHO, F. B.
bitstream/item/58543/1/CUsersPiazzonDocuments218.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Broiler.; Energia; Frango de Corte; Granulometria; Milho; Nutrição.; Energy; Corn; Nutrition.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/434878

MANIVA-semente: seleção, conservação e utilização.
Provedor de dados: 14
bitstream/item/160799/1/CPAF-AP-1996-Folder-maniva-semente.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Mandioca; Material de propagação.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/351710

Breve diagnóstico do algodão no Brasil e no nordeste brasileiro.
Provedor de dados: 14
Autores: BELTRÃO, N. E. de M.
bitstream/item/59986/1/COMTEC43.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Herbaceo; Arboreo; Brasil; Nordeste; Annual; Perennial; Production; Economic.; Algodão; Economia; Gossypium Hirsutum; Produção.; Cotton.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/269393

Avaliação do adensamento de um solo cultivado com cana-de-açúcar usando a tomografia computadorizada.
Provedor de dados: 14
Autores: VAZ, C. M. P.; CRESTANA, S.; OLIVEIRA, J. C. M. de; REICHARDT, K.
bitstream/CNPDIA/9834/1/BP03_96.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Cana-de-açúcar.; Tomografia.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29883

Necrose das nervuras e manchas das nervuras da folha da videira, doenças que ocorrem de forma latente nos vinhedos do Rio Grande do Sul.
Provedor de dados: 14
Autores: KUHN, G. B.
O presente trabalho tem por finalidade divulgar uma série de informações sobre estas doenças, de forma a evidenciar a importância de obter material de propagação sadio.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Necrose das nervuras; Rio Grande do Sul.; Doença de Planta; Uva; Vírus; Viticultura.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/537150

Embrapa 48.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa Soja (Londrina, PR).
Embrapa 48: Informações gerais; Características botânicas e agronômicas; Reação a doencas; Resultados.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445146

O uso das espécies cultivadas.
Provedor de dados: 14
Autores: SILVA, S. E. L. da; ARAÚJO, R. da C.
São apresentadas todas as espécies cultivadas na área experimental, discutindo-se os seus usos para consumo humano e animal e para fins industriais. São elas: Milho (Zea mays L.), Mandioca (Manihot esculenta Crantz.), Caupi (Vigna unguiculata (L) Walp), Mamão (Carica papaya L.).,Urucum (Bixa orellana L.), Pupunha (Bactris gasipaes Kunth), Cupuaçu (Theobroma grandiflorum (Willd ex. Spreng.) Schum), Citros (Citrus sinensis Osbeck), Castanha do Brasil (Bertholletia excelsa H.B.K.), Côco (Cocus nucifera L.), Seringueira (Hevea brasiliensis Muell. Arg.), Paricá (Schizolobium amazonicum Ducke), Andiroba (Carapa guianensis Aubl.), Mogno (Swietenia macrophylla King.).
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Cultivo Multiplo; Deterioração do Solo; Essência Florestal; Floresta Tropical Úmida; Recuperação do Solo; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671727

Alteracoes limnologicas no Rio Paraguai ("dequada") e o fenomeno natural de mortandade de peixes no Pantanal Mato-Grossense - MS.
Provedor de dados: 14
Autores: CALHEIROS, D. F.; FERREIRA, C. J. A.
No Pantanal, ocorre um fenomeno natural de deterioracao da qualidade da agua, denominado regionalmente como "Dequada", relacionado a decomposicao da grande massa de materia organica submersa no inicio do processo de inundacao. Sua magnitude e dependente das caracteristicas do pulso de inundacao, ou seja, caracteristicas da fase de seca anterior e do periodo de inundacao subsequente (volume e velocidade). De acordo com essa magnitude, pode provocar mortandade massiva de peixes (podendo alcancar a ordem de milhares de toneladas), docorrente da deplecao de oxigenio e do aumento da concentracao de gas carbonico, resultantes dos processos de oxidacao da materia organica, tanto nos campos inundados, quanto na coluna d'agua dos rios. Os peixes moribundos...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Dequada; Mortandade; Rio Paraguai; Mato Grosso do Sul; Brasil; Kills.; Limnologia; Peixe.; Brazil; Paraguay River; Pantanal; Fish; Limnology; Mortality.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/792189

Avaliação de genótipos de feijoeiro comum (Phaseolus vulgaris L.) no Estado do Acre.
Provedor de dados: 14
Autores: MARINHO, J. T. de S.; PEREIRA, R. de C. A.; CUNHA, E. T.
O cultivo do feijoeiro comum (Phaseolus vulgaris L.) no estado do Acre é praticado por pequenos agricultores que visam, principalmente, o consumo familiar e quando há excedente, é comercializado dentro do próprio Estado. A ocorrência da "mela do feijoeiro" causada pelo fungo Thanatephorus cucucmeris (Frank) Donk limita a expansão do cultivo, fazendo com que o Acre tenha que importar feijão de outras regiões do País para suprir a demanda estadual.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Phaseolus vulgaris L; Avaliação de genótipos; Mela do feijoeiro; Thanatephorus cucucmeris (Frank) Donk; Acre; Amazônia Ocidental.; Feijão; Murcha da Teia Micélica; Praga.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492236

Efeito de níveis de nitrogênio e fósforo na recuperação de pastagens de Brachiaria brizantha cv. Marandu.
Provedor de dados: 14
Autores: COSTA, N. de L.; TOWNSEND, C. R.; MAGALHAES, J. A.
Procurou-se avaliar os efeitos de niveis de nitrogenio e fosforo sobre rendimento e composicao quimica da forragem de pastagens degradadas de Brachiaria brizantha cv. Marandu. Conclui-se que: Adubacao com nitrogenio e fosforo mostrou-se uma pratica agronomica tecnicamente viavel para recuperacao de pastagens de B. brizantha cv. Marandu; Rendimentos de MS, teores de PB e fosforo da graminea foram significativamente incrementados com aplicacao de niveis crescentes de nitrogenio e fosforo, ocorrendo o inverso em relacao as plantas invasoras; Aplicacao conjunta de 50kg de N/ha e de 100kg de P2 O5/ha foi suficiente para assegurar a recuperacao da pastagem, proporcionando resultados semelhantes aos obtidos com niveis maximos dos nutrientes.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Brachiaria brizantha cv Marandu; Embrapa Rondônia; Porto Velho (RO); Rondônia; Amazônia Ocidental; Western Amazon.; Gramínea Forrageira; Capim Brachiaria; Fósforo; Nitrogênio; Campo Experimental; Pastagem; Recuperação do Solo.; Rendimento; Composição Química; Fertilidade do Solo; Forage grasses; Urochloa brizantha; Nitrogen; Crop yield.; Chemical composition; Phosphorus.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699887

Estimativa de custo de produção de trigo, safra 1996.
Provedor de dados: 14
Autores: RICHETTI, A.; MELO FILHO, G. A. de.
bitstream/item/66562/1/N-12-fev.96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Production; Cost.; Custo; Produção; Trigo; Triticum Aestivum.; Wheat.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/237481

Doenças de árvores urbanas.
Provedor de dados: 14
Autores: AUER, C. G.
bitstream/item/162278/1/Doc-28.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Patologia florestal; Área urbana.; Doença de planta; Árvore.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290778

Controle da lagarta da soja por Baculovirus.
Provedor de dados: 14
Autores: MOSCARDI, F.
O que é o Baculovírus; Como age o Baculovírus; Como o Baculovirus pode ser utilizado; Preparo da amostra; Aplicação; Coleta das lagartas; Armazenamento; Utilização do Baculovírus formulado; Vantagem do uso do Baculovírus; Lembretes importantes.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Inseto praga; Brasil; Parana; Insect pest; Soybean.; Anticarsia Gemmatalis; Baculovirus; Controle Biológico; Soja.; Biological control.; Brazil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445136

Education et developpement ecole de Massaroca.
Provedor de dados: 14
Autores: TONNEAU, J-P.
IPh. TONNEAU s'est rendu au Nordeste Brésil du 25 février 96 au 07 mars 96. La mission avait pour objectif Ia programmation des activités de I'école rurale, dans le cadre de Ia coopération décentralisée menée entre l'Association Serra/Seranne et le Comité des Agriculteurs de Massaroca. Le rapport présente le contexte de Ia mission, les choix pédagogiques qui ont présidé à Ia programmation des activités scolaires et extra-scolaires, le contenu du séminaire.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Escola rural; Cooperação francesa; Desenvolvimento rural; Educação; Formação Profissional; Rural development.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/134586

Produção massal e manejo de Trichogramma
Provedor de dados: 14
Autores: Centro Nacional de Pesquisa de Algodão.
bitstream/item/37137/1/producao-massal0001.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Produção massal.; Trichogramma.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/276846

Resultados dos ensaios para recomendacoes de cultivares no Parana 1977.
Provedor de dados: 14
Autores: SILVA, A. C. da; GAUDENCIO, C. de A.; BRUNETTA, D.; RIEDE, C. R.; EMPINOTTI, C.; CAMPOS, L. A. C.; VIEIRA, L. G. E.; ALCOVER, M.; PETRUCCI, G. L.; DAROS, E.; GIBLER, J.; BAIRRAO, J.; BASSOI, M. C.; PAN, W.
Sinopse dos ensaios, locais e cultivares; Seca e prejuizos nos ensaios.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Recomendacao de cultivar; Brasil; Parana; Recommendation.; Trigo.; Brazil; Varieties; Wheat.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445626

CNPA G3, cultivar de gergelim resistente à Mancha Angular
Provedor de dados: 14
Autores: CNPA.
bitstream/item/38791/1/Folder-CNPA-G30002.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: CNPA G3.; Gergelim; Mancha Angular.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/276811

Comportamento de pragas de importância econômica em culturas anuais, componentes de sistemas agroflorestais.
Provedor de dados: 14
Autores: FAZOLIN, M.; SILVA, W. S. da.
Com o objetivo de levar os pequenos agricultores do Acre a cultivarem pequenas áreas de tal forma que obtenham resultados econômicamente satisfatórios, matendo a sustentabilidade do agroecossistema, há necessidade de se obter um maior conhecimento das consequências da adoção de sistemas agroflorestais, considerados adequados para a região, quanto a vários aspectos, incluindo-se os de ordem fitossanitária. O presente estudo teve por objetivo direcionar as observações, quanto ao comportamento das pragas das culturas de arroz, milho e feijão, quando utilizadas como componentes de um modelo de sistema agroflorestal. Neste modelo, durante o primeiro ano de cultivo das culturas anuais ocorreu um incremento populacional consequentemente de danos, das principais -...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Sistema Agroflorestal (SAF); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Plantas anuales.; Frijoles; Maiz; Plagas de plantas; Agricultura sustentable; Agroforestería; Agrossilvicultura; Agricultura sustentável; Pequeno produtor; Praga de planta; Fenologia; Cultivo anual; Inseto; Arroz; Oryza sativa; Feijão; Phaseolus vulgaris; Milho; Zea mays; Agroforestry; Sustainable agriculture; Plant pests; Insecta; Annuals; Phenology; Rice; Beans; Corn; Small-scale farming.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492266

Uma abordagem probabilística para quantificar o movimento de solutos no solo em uma escala de bacia hidrográfica.
Provedor de dados: 14
Autores: ESKES, S. J. T.; CRESTANA, S.
Apresenta uma metodologia probabilística para quantificar a lixiviação de solutos em uma escala de bacia hidrográfica. O conceito de função transferência é empregado, mas ao invés de utilizar funções transferências analíticas, foi desenvolvido um modelo numérico, permitindo-se obter muito mais flexibilidade no emprego deste conceito, quando se pretende calcualr o transporte de soluto em escala de campo. O modelo numérico estocástico desenvolvido pode ser caracterizado como um modelo Lagrangeano descontínuo.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Modelos estocásticos; Função transferência; Bacias hidrográficas.; Lixiviação.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29764

Produção de biomassa e fornecimento de nutrientes de plantas tropicais úteis selecionadas.
Provedor de dados: 14
Autores: SCHMIDT, P.; LIEBEREI, R.; PREISINGER, H.; BAUCH, J.; GASPAROTTO, L.
Determinacao da producao de biomassa e das reservas de nutrientes de plantas tropicais uteis. Paralelamente, foi analisada a disponibilidade de nutrientes no solo. Esses experimentos podem permitir avaliar a forma mais viavel de crescimento sustentavel dos sistemas de plantio sob as condicoes prevalentes dos sitios. Sao apresentados preliminares.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Florestal tropical umida; Agrofloresta; Arvore rutifera; Derioracao do solo; Brasil; Amazonas; Reclamation; Sustainability; Biomassa; Conservação do Solo; Cultivo Multiplo; Desenvolvimento Sustentável; Essência Florestal; Fertilidade do Solo; Nutriente; Recuperação do Solo; Agroforestry; Biomass; Forest trees; Fruit trees; Multiple cropping; Soil conservation; Soil fertility.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667461

Levantamento de perdas de grãos na colheita mecanizada do arroz de sequeiro.
Provedor de dados: 14
Autores: FONSECA, J. R.; SILVA, J. G. da.
No que se refere a colheita, no ano agrícola 1982/83, foi realizado pelo Centro Nacional de Pesquisa de Arroz e Feijão (CNPAF), Goiânia, GO, um levantamento das perdas de grãos em lavouras de arroz de sequeiro colhidas mecanicamente, nos municípios goianos de Jataí e Mineiros.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Sequeiro; Colheita mecanizada.; Arroz; Grão; Oryza Sativa; Perda.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/203360

Dossie sobre o Canhamo-Cannabis sativa L.
Provedor de dados: 14
Autores: BELTRAO, N. E. de M.
bitstream/item/194300/1/Dossie-sobre-o-Canhamo-Cannabis-sativa-L.-para-EmbrapaSoja.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Maconha; Dossie; Cannabis sativa L; Cânhamo; Hemp.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/269379

Contribuição ao estudo do araçazeiro, Psidium cattleyanum.
Provedor de dados: 14
Autores: RASEIRA, M. do C. B.; RASEIRA, A.
bitstream/item/56016/1/aracazeiro.pdf
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Fruteira nativa.; Araçá.; Psidium cattleyanum.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/742996

Embrapa 61.
Provedor de dados: 14
Autores: PIPOLO, A. E.
Informações gerais; Reação às doenças; Características botânicas e agronômicas; Resultados.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445150

A irrigação e a cultura do feijoeiro.
Provedor de dados: 14
Autores: SILVEIRA, P. M. da; STONE, L. F.; RIOS, G. P.; COBUCCI, T.; AMARAL, A. M. do.
Reune informações sobre vários fatores de produção do feijoeiro, buscando esclarecer a interdependência entre eles e a irrigação, com a finalidade de orientar os produtores na condução de suas lavouras. Trata de irrigação na cultura do feijoeiro nos seguintes aspectos: preparo do solo, cultivares, população de plantas, época de plantio, adubação, fixação biológica de nitrogênio, quimigação , herbicidas, pragas e doenças.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cerrado; Feijão; Irrigação; Phaseolus Vulgaris; Pratica Cultural.; Irrigation.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/203257

Biotecnologia de produção massal de Trichograma spp. através do hospedeiro alternativo Sitotroga cerealella.
Provedor de dados: 14
Autores: ALMEIDA, R. P. de.
Producao Massal de Trichogramma Producao do hospedeiro alternativo; Estrutura fisica e equipamentos utilizados.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Massal; Parasitoide; Trichogramma spp; Brasil; Paraiba; Campina Grande; Biotecnology; Production; Host.; Biotecnologia; Controle Biológico; Produção; Sitotroga Cerealella.; Biological control.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/269375

FOLHA DA FLORESTA 7: informativo do Centro Nacional de Pesquisa de Florestas / CNPFlorestas.
Provedor de dados: 14
bitstream/item/106619/1/v.4n.70001.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Vespa-da-madeira; Sispinus.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/992470

Adaptação e avaliação de uma semeadora com tração motora para capim buffel.
Provedor de dados: 14
Autores: ANJOS, J. B. dos; PIRES, E. da L.
Adaptou e avaliou o mecanismo da semeadora semeato modelo Plantadeira de Linhas-PI acoplável aos 3 pontos do sistema hidráulico do trator de pneus, para a distribuição de sementes de capim buffel. Mostra os prodecimentos para semeadura e determinação da quantidade de sementes distribuídas por metro linear.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Semeadora; Tração motora; Adaptação; Buffel grass; Sower; Power machinery; Adaptation.; Capim Buffel; Cenchrus ciliaris; Tração Motorizada; Equipamento Agrícola.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131490

Desempenho de linhagens e cultivares de arroz de sequeiro favorecido no Estado do Amapá no ano agrícola 1995/96.
Provedor de dados: 14
Autores: ATROCH, A. L.
Visando minimizar o problema do uso de cultivares inadequadas pelos produtores, para que os materiais selecionados adaptem-se ao cultivo em sequeiro no modelo de exploração de roça e no modelo mais moderno, ou seja, utilizando-se as áreas de capoeira com uso de adubos e outros insumos, a EMBRAPA-Amapá (Centro de Pesquisa Agroflorestal do Amapá) vem executando um subprojeto de avaliação de linhagens e cultivares de arroz para cultivo em áreas de mata de terra firme no estado.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Linhagens; Brasil; Amapá; Upland rice; Genotypes.; Arroz Sequeiro; Oryza Sativa; Performance; Variedade.; Brazil; Varieties.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341846

Botrytis cinerea survival in crop debris of roses and as sclerotia in soil.
Provedor de dados: 14
Autores: ARAUJO, A. E. de; MAFFIA, L. A.; MIZUBUTI, E. S. G.; CAPDEVILLE, G. de; ALFENAS, A. C.; GROSSI, J. A. S.
This a report on the survival of the pathogen in crop debris and as scleretia, studied from July/93 to June/94.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Survival; Botrytis Cinerea; Sobrevivência.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667501

Recomendações técnicas para a cultura da soja na região Central do Brasil 1996/97.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
Situacao mundial da soja; Producao; Exportacoes/importacoes; Esmagamento; Estoques finais; Farelo de soja; Oleo de soja; Balanco de oferta e demanda mundial de soja; Recomendacoes tecnicas; Exigencias climaticas; Exigencias hidricas; Exigencias termicas e fotoperiodicas; Rotacao de culturas; Selecao de especies para rotacao de culturas; Planejamento da propriedade; Rotacao de culturas com a soja no sul do Maranhao; Manejo do solo; Manejo de residuos culturais; Preparo do solo; Alternancia do uso de implementos no preparo do solo; Rompimento da camada compactada; Sistema de semeadura direta; Correcao e manutencao da fertilidade do solo; Acidez do solo; Calagem; Qualidade do calcario e condicoes de uso; Correcao da acidez subsuperficial; Exigencias minerais...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendacao tecnica; Planta daninha; Cultivar; Aspecto economico; Rotacao; Brasil; Soybean; Nematode; Technical recommendation; Seed; Pest; Disease; Inoculation; Variety; Economic situation; Oil.; Colheita; Clima; Cerrado; Fertilidade do Solo; Época de Semeadura; Doença; Inoculação; Nematóide; Óleo; Pesquisa; Praga; Semente; Soja.; Crop rotation; Harvesting; Climate; Brazil; Research; Soil fertility; Sowing date; Savannas; Weeds.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/460297

Produção de feijão nos sistemas consorciados.
Provedor de dados: 14
Autores: PORTES, T. de A.
Quem deve plantar em consórcio; Fatores que limitam os rendimentos das culturas em consórcio; Nutrientes minerais como fator limitante; Água como fator limitante; CO2 e 02 como fatores limitantes; Diferenças de temperatura; A luz como fator limitante; Características morfológicas da planta de feijão; Crescimento determinado; Crescimento indeterminado; Proporção de área ocupada pelo milho e pelo feijão (ou outras culturas) em um consórcio; Sistemas de consórcio praticados no Brasil; Consórcio feijão x milho; Épocas de plantio; Escolha da variedade; Qualidade das sementes; Preparo do solo; Adubação; Arranjos comumente usados para as plantas de feijão e de milho no consórcio; Densidade de plantas de feijão e de milho recomendadas para o consórcio; Quantidade...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Consorcio; Bean; Consortion; Production; Característica; Morfológica; Cana-de-açúcar.; Café; Cerrado; Feijão; Mandioca; Milho; Phaseolus Vulgaris; Produção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/203598

Fracionamento físico da matéria orgânica do solo e caracterização por espectroscopia de EPR.
Provedor de dados: 14
Autores: MARTIN NETO, L.; ANDRIULO, A.; TRAGHETTA, D. G.
bitstream/CNPDIA/9812/1/CT10_96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Fracionamento físico; Espectroscopia; EPR.; Matéria Orgânica; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29760

Cuidados na aquisicao e na utilizacao da semente de soja.
Provedor de dados: 14
Autores: KRZYZANOWSKI, F. C.; FRANCA NETO, J. de B.; HENNING, A. A.; CATTELAN, A. J.; COSTA, N. P. da.
Aquisicao da semente; Cuidados com o armazenamento da semente; Preparo da semente; Instalacao da lavoura.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Brasil; Parana; Soybean; Seed; Quality; Treatment.; Qualidade; Semente; Tratamento; Soja.; Brazil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445878

EMBRAPA TRIGO.
Provedor de dados: 14
Background; Location; Impact of technologies; Personnel; Land and buildings; Mission; Technical goals; Research priorities.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Institucional; Missão; Prioridades.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/842856

Programa Terceiro Ciclo: Projeto de Incentivo à Produção Agrícola do Município de Boca do Acre.
Provedor de dados: 14
Autores: TEIXEIRA, W. G.; SANTOS, J. V. dos.
Relatorio de Acompanhamento do projeto: Incentivo a Producao Agricola de Boca do Acre, AM.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Boca do Acre; Desenvolvimento Rural; Política de Desenvolvimento; Projeto de Desenvolvimento.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668142

Desenvolvimento de porta-enxertos de citros em condicoes de viveiro na regiao de Manaus, AM.
Provedor de dados: 14
Autores: SILVA, S. E. L. da; NUNES, C. D. M.; SOUZA, A. das G. C. de.
No viveiro do Campo Experimental do Centro de Pesquisa Agroflorestal da Amazonia Ocidental (CPAA) avaliaram-se cinco porta-enxertos (citrange Troyer, tangerina Cleopatra, limao Volkameriano, limao Rugoso da Florida e limao Cravo) com sete copas (Baianinha, Valencia, limao Tahiti, mexerica Poncan, pera Rio e pera Natal). As caracteristicas avaliadas foram: diametro de caule, a 15 cm do solo, altura total das mudas, aos seis e doze meses, apos repicagem, e percentual de pegamento de enxertia. O delineamento experimental utilizado foi o inteiramente casualizado, com quatro repeticoes e dez plantas por parcela. Limao Rugoso da Florida foi que apresentou maior incremento no diametro de caule (0,79 cm) e maior indice de pegamento (92,4%) seguido de limao Cravo...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Citro; Porta-enxerto; Brasil; Amazonas; Rootstock; Nursery.; Espécie; Viveiro.; Citrus.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665432

Seringueira.
Provedor de dados: 14
Autores: MORAES, V. H. de F.
Seringueira. Plantio e crescimento. Enxertia de copa. Controle fitossanitário e adubação. Crescimento após a enxertia de copa.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Floresta Tropical Úmida; Seringueira; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671750

Linígrafo automatizado com microcontrolador.
Provedor de dados: 14
Autores: RABELLO, L. M.; CRUVINEL. P. E.; DENARDIN, J. E.
bitstream/CNPDIA/9825/1/CT06_96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Linígrafo automatizado; Microcontrolador.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29465

Uso de novo método para avaliação não-destrutiva do interior de frutas.
Provedor de dados: 14
Autores: BISCEGLI, C. I.; CRESTANA, S.
Conhecer o interior de um objetivo, sem destruí-lo, através de informações tomadas do lado externo foi, indubitavelmente, uma das maiores conquistas cientificas das ultimas três décadas. A técnica que tornou isto possivel ficou conhecida como Tomografia Computadorizada de raios-X (TC), e tem sido empregada originalmente e principalmente em medicina e em certas aplicações industriais. Ultimamente a TC foi estendida para solos, plantas, raízes e frutas (Crestana et al, 1996).
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Tomografia Computadorizada; Raios-X; TC.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/26217

Fogo bacteriano das pomáceas.
Provedor de dados: 14
Autores: VALDEBENITO-SANHUEZA, R. M.; HERTER, F.; BERNARDI, J.
bitstream/item/40813/1/cir21.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Doença da planta.; Fruticultura; Fogo Bacteriano; Fruta de Clima Temperado; Maçã; Pêra.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/536106

Inseminação artificial em ovelhas deslanadas
Provedor de dados: 14
Autores: MACHADO, R.; SIMPLÍCIO, A. A.
bitstream/item/119625/1/digitalizar0007.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Ovelha desnalada.; Inseminação Artificial.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/44894

Como plantar graviola.
Provedor de dados: 14
Autores: MELEM JUNIOR, N. J.; SEGOVIA, J. F. O.
Preparo das covas; Época de plantio; Distância entre as plantas; Adubação de covas; Transplante; Adubação de cobertura.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivo; Cultivation; Soursop.; Graviola; Plantio.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341142

Avaliação de genótipos de leucaena Spp nas condições edafoclimáticas de São Carlos, SP.
Provedor de dados: 14
Autores: PRIMAVESI, A. C.; PRIMAVESI, O.; GODOY, R.
bitstream/CPPSE/11940/1/PROCIComT14ACP1996.00014.PDF
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Leucaena spp; Genótipos; Forage plant; Production.; Forragem; Leguminosa; Produção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/43980

Producao de mudas de Stylosanthes guianensis cv. Mineirao por meio de enraizamento de hastes.
Provedor de dados: 14
Autores: LEITE, G. G.; FIALHO, J. de F.; JUNQUEIRA, N. T. V.; SOUZA, M. A. de; VILELA, L.
bitstream/item/105896/1/comtec-70.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Stylosanthes guianenesis cultivar Mineirao; Planta leguminosa; Cuttings; Production.; Caule; Cerrado; Enraizamento; Fungicida; Leguminosae; Muda; Produção.; Fungicides; Stems; Rooting; Varieties.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/551818

Resposta de ecotipos de Andropogon gayanus a fertilizacao fosfatada.
Provedor de dados: 14
Autores: COSTA, N. de L.; TOWNSEND, C. R.
Avaliou-se o desempenho agronomico de ecotipos de A. gayanus, sob tres niveis de abdubacao fosfatada, nas condicoes edafoclimaticas de Porto Velho, Rondonia. Conluiu-se que: Fertilizacao fosfatada aumentou significativamente os rendimentos de forragem e teores de PB e fosforo de todos os ecotipos avaliados; Ecotipos que proporcionaram os maiores rendimentos de MS foram CPAC-3086 e CPAC-3085, superando em 30 e 19%, respectivamente, os obtidos com a cultivar Planaltina; Os maiores teores de PB foram verificados nos ecotipos CPAC-3085 e CPAC-3087, enquanto que CPAC-3084, CPAC-3083 e CPAC-3087, alem da cultivar Planaltina, forneceram os maiores teores de fosforo.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Embrapa Rondônia; Porto Velho (RO); Rondônia; Amazônia Ocidental; Western Amazon.; Gramínea Forrageira; Capim Andropogon; Andropogon Gayanus; Condição Ambiental; Fertilizante Fosfatado; Comportamento de Variedade; Aclimatação; Características Agronômicas; Rendimento; Campo Experimental.; Crop yield.; Variety trials; Phosphorus fertilizers; Forage grasses; Agronomic traits; Environmental factors; Acclimation.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699916

Un novo transdutor de deslocamento para uso agropecuário.
Provedor de dados: 14
Autores: FERREIRA, W. S.; CRUVINEL, P. E.
bitstream/CNPDIA/10083/1/CT15_96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/26893

Espécies vegetais para produção de cobertura morta de solo, em plantio no outono, sem irrigação, na região de São Carlos, SP.
Provedor de dados: 14
Autores: PRIMAVESI, O.; PRIMAVESI, A. C.; NOVAES, N. J.
bitstream/CPPSE/11330/1/PROCIComT16OP1996.00133.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Matéria Orgânica; Irrigação; Solo.; Irrigation; Organic matter; Soil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/43370

Estudos sobre o amarelecimento fatal do dendezeiro.
Provedor de dados: 14
Autores: MULLER, A. A.
bitstream/item/197897/1/FL01465.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Controle de doença; Amarelecimento fatal; Produção de óleo de palma; Production; Dendê; Elaeis Guineensis; Rhadinaphelenchus Cocophilus; Disease control; Palm oils.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375465

Práticas sanitárias para bovinos na região amazônica.
Provedor de dados: 14
Autores: LAU, H. D.
bitstream/item/34706/1/RecBas-31.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Controle de doenca; Pará; Brasil; Management.; Bovino; Manejo.; Amazonia; Cattle; Disease control.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375273

Atividades de manejo da área experimental.
Provedor de dados: 14
Autores: GASPAROTTO, L.; ARAUJO, R. da C.; BUENO, N.
Sao apresentadas em consequencias cronologicas todas as atividades de manejo (preparo da area experimental e de mudas, plantio, adubacao e controle fitossanitario) efetuados no viveiro e area experimental para as diferentes especies que compoem o experimento, na EMBRAPA-CPAA (Manaus-AM).
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Tropical rain forestry; Reclamation; Árvore Frutífera; Cultivo Multiplo; Deterioração do Solo; Essência Florestal; Floresta Tropical Úmida; Recuperação do Solo; Agroforestry; Environmental degradation; Forest trees; Fruit trees; Multiple cropping; Soil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667449

Cultivo de tomate (Lycopersicon esculentum Mill.) no Acre.
Provedor de dados: 14
Autores: NUNES, M. U. C.; OLIVEIRA, J. B. de; FAZOLIN, M.
O tomate é uma solanácea que deve fazer parte da dieta alimentar, principalmente como fonte de cálcio, fósforo, ferro e vitaminas e pelas propriedades medicinais como laxante, tônico, antiescorbútico e outras. É uma das principais hortaliças consumidas no Estado do Acre, em volume e valor comercializado, porém exige cuidados especiais na escolha de cultivares, tratos culturais, método de irrigação, nutrição e tratamento fitossanitário.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: C-38-D; Compacto-6G; Yoshimatsu-4; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Tomates.; Aclimatación; Factores ambientales; Nueva variedad; Plantación; Plantio; Tomate; Lycopersicon esculentum; Variedade; Aclimatação; Condição ambiental; Planting; Tomatoes; New variety; Acclimation; Environmental factors.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492069

Producao de mudas frutiferas sob condicoes do ecossistema de cerrados.
Provedor de dados: 14
Autores: PINTO, A. C. de Q. coord.
bitstream/item/101501/1/doc-62.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cultivo; Planta nativa; Production; Cultivation; Indigenous organisms; Brasil; Brazilian savannas; Culting; Culture; Savanna.; Cerrado; Fruta; Muda; Produção.; Fruits.; Brazil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/552175

Potencial da fruticultura irrigada nos tabuleiros costeiros.
Provedor de dados: 14
Autores: REINHARDT, D. H. R. C.
O Nordeste brasileiro apresenta condicoes excelente para a producao de frutas tropicais de boa qualidade, considerando-se seus aspectos ecologicos, a disponibilidade de area e mao-de-obra, alem das perspectivas favoraveis dos mercados internos e externos de frutas. Por muito tempo, a fruticultura do Nordeste concentrou-se nos Tabuleiros Costeiros, em grande parte situados na Zona da Mata e representando cerca de 8% do territorio nordestino. Nesta regiao, o cultivo de fruteiras e as acoes de pesquisa voltada para a fruticultura tradicionalmente nao lancavam mao da irrigacao. So a partir da decada de 1990 este recurso tecnologico passou a ser usado com frequencia cada vez maior, dada a ocorrencia de um periodo mais ou menos prolongado de deficiencia hidrica...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Fruteiras tropicais; Potencial produtivo; Fatores limitantes; Fatores favoraveis; Tropical fruit crops; Yield potencial; Productivity; Income Potential; Limiting factors; Favorable factors.; Mercado; Produtividade; Rendimento.; Markets.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/637865

Mission d´étude au Mato Grosso dans le cadre du projet "Environnement et criquet ravageur au Brésil": 14 janvier au 11 février 1996.
Provedor de dados: 14
Autores: LECOQ, M.; FOUCART, A.
bitstream/item/107874/1/1375.pdf
Tipo: Recomendação Técnica (INFOTECA-E)
Palavras-chave: Acridologia; Rhammatocerus schistocercoides; Brasil.; Gafanhoto; Meio Ambiente.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/17216

Carajas: cultivar de arroz de sequeiro precoce e resistente ao acamamento.
Provedor de dados: 14
Autores: PEREIRA, J. A.; CAMPELO, G. J. de A.
bitstream/item/73638/1/CT640001.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Carajas; Acamamento; Piaui; Brasil.; Arroz; Oryza Sativa; Resistência; Variedade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/53356

Avaliação do potencial forrageiro de acessos do gênero Paspalum em Rio Branco, Acre.
Provedor de dados: 14
Autores: VALENTIM, J. F.; MOREIRA, P.
O desenvolvimento de uma pecuária racional e em bases sustentáveis no Acre depende, em grande parte, da disponibilidade de cultivares de gramíneas e leguminosas adaptadas às condições ambientais locais e capazes de suprir às necessidades nutricionais dos animais para a produção de carne e leite. Uma opção para a desejada diversificação de forrageiras na formação de pastagens são as gramíneas do gênero Paspalum que apresentam um grande número de espécies nativas no Brasil e uma variabilidade genética ampla, permitindo selecionar germoplasmas adaptados às condições edafoclimáticas do Acre. Desta forma, a Embrapa Acre implantou um experimento com o objetivo de introduzir, avaliar e selecionar germoplasmas deste gênero, adaptados às condições de clima e solo...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Manejo de pastagem; Acre; Amazônia Ocidental.; Gramínea Forrageira; Germoplasma; Pecuária.; Paspalum.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492612

Avaliacao do desempenho do abieiro (Pouteria caimito (Ruiz &amp; Pav.) Radlk.) na regiao de Manaus, AM.
Provedor de dados: 14
Autores: SILVA, S. E. L. da; SOUZA, A. das G. C. de.
Para avaliar o desempenho do abieiro nas condicoes edafoclimaticas de Manaus, AM, foi realizado um experimento na Estacao Experimental do CPAA, em 1989, em Latossolo Amarelo. Em 1994, a producao media foi de 172 frutos/planta, com peso medio de 188g, diametro medio transversal de 7,15cm e medio longitudinal de 8,0cm. A principal praga observada na plantacao foi a moscadas fruts, que causou queda dos frutos. Como controle, utilizar armadilhas com atrativo e coleta de frutos atacados.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Desempenho; Brasil; Amazonas; Manaus; Production.; Abiu; Muda; Performance; Produção.; Pouteria caimito; Seedlings.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665436

Triticale: cultivo e aproveitamento.
Provedor de dados: 14
Autores: BAIER, A. C.; NEDEL, J. L.; REIS, E. M.; WIETHÖLTER, S.
bitstream/item/126691/1/ID-6914.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Triticale.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/818683

Efeito da aplicação do ferro dextrano sobre o desempenho de leitões lactentes produzidos no Sistema Intensivo de Suínos Criados ao Ar Livre - SISCAL.
Provedor de dados: 14
Autores: DALLA COSTA, O. A.; SOBESTIANSKY, J.; MONTICELLI, C. J.; GUIDONI, A. L.
bitstream/item/58544/1/CUsersPiazzonDocuments217.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Ferro dextrano; Desempenho; Piglet; Dextran iron.; Leitão; Performance.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/433739

Deficiências nutricionais na cultura do feijoeiro e suas correções.
Provedor de dados: 14
Autores: FAGERIA, N. K.; OLIVEIRA, I. P. de; DUTRA, L. G.
Os objetivos deste trabalho são apresentar e descrever os sintomas de deficiência nutricional para auxiliar no diagnóstico dos problemas nutricionais da cultura do feijoeiro e sugerir métodos apropriados para suas correções.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Deficiência Nutricional; Cerrado; Feijão; Phaseolus Vulgaris; Várzea; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/203309

Comportamento de cultivares de arroz no Estado do Amapá em 1994 e 1995.
Provedor de dados: 14
Autores: ATROCH, A. L.; CAVALCANTE, E. da S.
No período de 1993/94 e 1994/95, foram conduzidos sete ensaios de avaliação de linhagens e cultivares de arroz para os ecossistemas de mata de terra firme (floresta tropical densa) e várzea. Parametros de floração media, altura de plantas, índice de acamamento, reação as principais doenças e produtividade foram avaliados em delineamento experimental de blocos ao acaso. A qualidade dos grãos foi tambem observada como fator de seleção dos materiais testados. Para o sistema de cultivo de sequeiro favorecido as linhagens CNA 6843-1, BSL, CT 7/15, L141, CNA 7460 e CNA 7706 e as cultivares Araguaia e Progresso foram selecionadas como promissoras para a região. Em condições de várzea umida, a linhagem CNA 6343 possui bom potencial para ser cultivada em plantios...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Comportamento; Brasil; Amapá.; Arroz; Oryza Sativa; Variedade.; Brazil; Rice; Varieties; Yields.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341831

Climatological observations recorded during the period 1993 to 1995 at SHIFT Project site in Manaus, Central Amazônia.
Provedor de dados: 14
Autores: CABRAL, O. M. R.
Hourly averages of solar and net radiation, air temperature and humidity, wind speed and direction, and soil temperatures were collected during the years 1993 to 1995 at SHIFT project site in Manaus.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Floresta Tropical Úmida; Amazonia; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671734

Minerais em adubos verdes conduzidos sobre latossolos, na região de São Carlos, SP.
Provedor de dados: 14
Autores: PRIMAVESI, O.; PRIMAVESI, A. C.
bitstream/CPPSE/11331/1/PROCIComT15OP1996.00134.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Adubos verdes; São Carlos; Latossol.; Adubo; Latossolo.; Fertilizers.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/43371

Programa de pesquisa com pastagens em Rondônia - 1975/1995.
Provedor de dados: 14
Autores: COSTA, N. de L.
O programa de pesquisa com pastagens do Centro de Pesquisa Agroflorestal de Rondônia (CPAF-Rondônia) da Empresa Brasileira de Pesquisa Agropecuaria (EMBRAPA) no período de 1975/95, enfatizou os aspectos relacionados diretamente com a recuperação, formação e manejo de pastagens, e foram delineados seguindo-se uma sequência lógica de avaliação, visando a seleção de materiais mais promissores. Basicamente utilizou-se a metodologia preconizada pelo Centro Internacional de Agricultura Tropical (CIAT) para a Rede Internacional de Avaliação de Pastos Tropicais, que contempla Ensaios Regionais. Apresenta os aspectos: Avaliação agronômica de plantas forrageias; Consorciação de pastagens; Capim elefante anão; Diferimento de pastagens; Seleção de micorrizas...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Rondônia; Amazônia Ocidental; Western Amazon.; Pastagem; Projeto de Pesquisa.; Pesquisa Agrícola; Pastures; Agricultural research; Research projects.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/698629

Avaliação de pastagens nativas de terra firme do Médio Amazonas.
Provedor de dados: 14
Autores: CAMARÃO, A. P.; SERRÃO, E. A. S.; MARQUES, J. R. F.; RODRIGUES FILHO, J. A.
bitstream/item/42928/1/Boletim-Pesquisa-169-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Avaliação; Monte Alegre; Pará; Brasil; Natural pastures; Production; Valuation.; Composição Botânica; Pastagem Nativa; Produção; Valor Nutritivo.; Amazonia; Botanical composition; Nutritive value.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374528

Alimentacao de peixes carnivoros da planicie inundavel do Rio Miranda, Pantanal, Mato Grosso do Sul, Brasil.
Provedor de dados: 14
Autores: RESENDE, E. K. de; PEREIRA, R. A. C.; ALMEIDA, V. L. L. de; SILVA, A. G. da.
E analisada a alimentacao de 15 especies de peixes carnivoros de quatro ambientes na planicie de inundacao do baixo rio Miranda, na regiao do Pantanal de Mato Grosso do Sul. Estas especies carnivoras sao generalistas e se alimentam de peixes e outras presas que estejam disponiveis no ambiente, como camaroes, na Baia Cinza. Meandros abandonados, vazantes e baias constituem lares de alimentacao de especies carnivoras de pequeno porte, bem como de formas jovens de grande porte.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Peixe carnivoro; Rio Miranda; Carnivorous fishes; Feeding; Floodplain; Food; Miranda river.; Alimentação.; Pantanal; Fish.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/789740

Pesquisas com plantas invasoras de pastagens: plano de ação 1996/2005.
Provedor de dados: 14
Autores: SOUZA FILHO, A. P. da S.; DUTRA, S.; GONÇALVES, C. A.
bitstream/item/197871/1/FL00362.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Planta invasora; Pasture; Weed; Erva Daninha; Pastagem; Pesquisa; Research.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374329

Efeito a aplicação de ferro dextrano sobre o desempenho de leitões lactentes produzidos no sistema intensivo de suínos criados ao ar livre - SISCAL.
Provedor de dados: 14
Autores: DALLA COSTA, O. A.; SOBESTIANSKY, J.; MONTICELLI, C. J.; GUIDONI, A. L.
bitstream/item/87981/1/DCOT-217.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Ferro dextrano; Leitões; Lactentes.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/964290

Comportamento silvicultural e custos de implantação de sumaúma (Ceiba penthandra (L.) Gaertn) em diferentes espaçamentos.
Provedor de dados: 14
Autores: OLIVEIRA, L. C. de; OLIVEIRA, M. V. N. d'.; SA, C. P. de; SOUZA, A. A. de.
Os plantios homogêneos de espécies autóctones são, em geral, limitados a ensaios de pequena escala ou plantações estabelecidas em função de exigências legais, não obstante o seu potencial silvicultural. Por outro lado, observa-se, em função de características físicas, mecânicas e estéticas das madeiras tropicais, uma tendência sobretudo da indústria de compensados à utilização de poucas espécies, ocasionando uma pressão de exploração seletiva quando pouco se conhece sobre sua autoecologia e estrutura genética. Novos cenários para o setor florestal criados em decorrência da queda de incentivos fiscais à pecuária, bem como o aumento de restrições à conversão de novas áreas, de forma conjugada o mais evidente impacto ambiental sobre florestas, o fim da...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Sumaúma; Ceiba penthandra L Gaertn; Plantio homogêneo; Acre; Amazônia Ocidental.; Custo; Espaçamento.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492256

Solos e nutrição de plantas.
Provedor de dados: 14
Autores: BUENO, N.
Neste estudo com diferentes arranjos de sistemas de produção tem-se por objetivo acompanhar as modificações das características físicas e químicas do solo e o desenvolvimento e produtividade das diferentes culturas estudadas.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Floresta Tropical Úmida; Solo; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671732

Espacamento e adubacao introgenada em melancia. I. Efeito sobre a produtividade.
Provedor de dados: 14
Autores: GARCIA, L. F.
bitstream/item/97542/1/PAND650001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Adubacao nitrogenada; Citrulus lanatus; Piaui; Brasil.; Espaçamento; Melancia; Produção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/51758

Embrapa 59.
Provedor de dados: 14
Autores: PIPOLO, A. E.
Informações gerais; Reação às doenças; Características botânicas e agronômicas; Resultados.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445148

Avaliação e seleção de clones de capim-elefante sob corte para áreas de várzea alta do Estado do Amapá.
Provedor de dados: 14
Autores: MEIRELLES, P. R. de L.; MOCHIUTTI, S.
O objetivo do presente trabalho e selecionar genotipos de capim-elefante sob corte para áreas de várzea alta do Estado do Amapá.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amapá.; Capim Elefante; Clone; Pennisetum Purpureum; Várzea.; Brazil; Clones.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341845

Uso de leguminosas de cobertura na cultura do cupuaçu.
Provedor de dados: 14
Autores: SOUZA, A. das G. C. de; SILVA, S. E. L. da; NUNES, C. D. M.; SILVA JÚNIOR, J. P. da.
Foram testadas como cobertura de solo em uma plantacao de cupuacu (Theobroma grandiflorum) com quatro anos de idade, em espacamento de 6m x 6m, as seguintes leguminosas: desmodio (Desmodium ovalifolium), pueraria (Pueraria phaseoloides) e mucuna (Mucuna cochinchinensis). Cada leguminosa ocupou 1ha de uma area infestada de capim taripucu (Paspalum maritimum Trin.). Inicialmente, por avaliacao visual, notou-se que a mucuna recobriu bem o solo, mas desapareceu rapidamente, por apresentar comportamento anual, permitindo a reinfestacao das plantas invasoras, apos completar seu ciclo de vida. Desmodio teve crescimento lento no inicio, havendo predominancia do capim taripucu. Pueraria foi a mais eficiente em cobrir o solo, controlando a graminea, promovendo assim...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Planta leguminosa; Brasil; Amazonas; Cover plants; Life mulches; Leguminous; Integrated control.; Cobertura Vegetal; Cupuaçu; Controle Integrado; Erva Daninha; Theobroma Grandiflorum.; Solo; Soil; Weeds.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665446

Efeito do empalhamento, dobramento de plantas, tipo de grão e época de colheita sobre a perda de peso do milho no campo.
Provedor de dados: 14
Autores: COSTA, J. G. da; CAMPOS, I. S.; MARINHO, J. T. de S.
Com o objetivo de determinar as perdas devido ao atraso na colheita, desenvolveu-se um trabalho durante os anos agrícolas 1990/91 e 1991/92 no Campo Experimental do Centro de Pesquisa Agroflorestal do Acre (CPAF-Acre), da Embrapa. Neste trabalho avavliou-se a relação entre o tipo de grão (semi-dentado e duro), empalhamento de espiga (bem e mal empalhadas), dobramento das plantas e a época de colheita sobre as perdas de peso na cultura.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Empalhamento; Dobramento da planta; Embrapa Acre; Amazonia Occidental; Western Amazon; Amazônia Ocidental; Acre; Rio Branco (AC); Maiz; Temporada de cosecha.; Pérdida de peso; Rendimiento de los cultivos; Zea mays; Rendimento; Milho; Perda de peso; Época de colheita; Campo Experimental.; Harvest date; Crop yield.; Weight loss; Corn.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492615

Utilização da casca do maracujá-amarelo (P. edulis f. flavicarpa, Degener) na produção de geléia.
Provedor de dados: 14
Autores: LIRA FILHO, J. F. de; JACKIX, M. de N. H.
O objetivo deste trabalho foi o de estudar o aproveitamento da casca do maracuja-amarelo (Passiflora edulis f. flavicarpa, Deg.) na producao de geleia. A geleia de maracuja foi elaborada sob nova modalidade, utilizando-se um extrato pectinoso da parte interna da casca do maracuja denominada albedo. Constatou-se que esta pectina ofereceu bom rendimento e qualidade para a producao de geleia. Uma mistura desse extrato liquido pectinoso, suco de maracuja integral, agua destilada e sacarose foi aquecida ate se encontrar um teor de solidos soluveis totais de 65-67%.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Maracuja-amarelo; Extrato pectinoso; P; Edulis; Flavicarpa Degener.; Geléia; Pectina.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/419889

Controle de qualidade de análises de solo da ROLAS e reflexos nas recomendações de calagem e de adubação - 1996.
Provedor de dados: 14
Autores: WIETHÖLTER, S.
bitstream/item/126706/1/ID-8163.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Controle.; Qualidade; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/819932

Projeto de desenvolvimento rural para o Estado do Amapá.
Provedor de dados: 14
Autores: ATROCH, A. L.; MELEM JUNIOR, N. J.; MEIRELLES, P. R. de L.; CAVALCANTE, E. da S.; SEGOVIA, J. F. O.
A atividade agrícola no Estado do Amapá e desenvolvida basicamente para pequenos produtores rurais, com nível tecnologico muito baixo. Tanto o uso de insumos, como sementes e mudas, se da desorganizadamente, assim como as informações sobre novas tecnologias geradas ou adaptadas nao chegam aos produtores satisfatoriamente. Ações de desenvolvimento rural devem necessariamente levar em consideração esse quadro. Desse modo, este projeto visa difundir e transferir tecnologias geradas e/ou adaptadas e fomentar o plantio de arroz, milho, feijão-caupi e fruteiras através da produção de sementes e mudas melhoradas para os produtores do Estado do Amapá.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amapá.; Desenvolvimento Rural; Projeto de Desenvolvimento.; Brazil; Development projects; Rural development.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341878

METODOLOGIA para monitorar a eficiência dos inimigos naturais da vespa-da-madeira (Sirex noctilio).
Provedor de dados: 14
bitstream/item/101257/1/Folder0001.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Metodologia.; Sirex Noctilio; Vespa da Madeira.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/984811

Epidemiologia das doenças das plantas úteis nos diferentes sistemas de plantio.
Provedor de dados: 14
Autores: GASPAROTTO, L.; LIMA, M. I. P. M.
São discutidos a ocorrência de Microcyclus ulei e Thanatephorus cucumeris em seringueira; Phytophthora sp., Septobasidium pseudopediculatum e S. sacardinum em laranja; Crinipellis perniciosa em cupuaçu; Meloidogyne sp. em mamão; e de Xanthomonas campestris pv. manihotis em mandioca.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Floresta Tropical Úmida; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671740

Gado de corte: o produtor pergunta, a Embrapa responde.
Provedor de dados: 14
Autores: CORRÊA, A. N. S.
Fase de cria; Manejo reprodutivo do rebanho; Criação de Bezerros; Recria e engorda; Recria de novilhas; Recria de machos; Engorda em regime de pasto; Engorda em confinamento; Alimentação do rebanho; Forrageiras e pastagens; Nutrição animal; Sanidade animal; Deonças infecciosas; Doenças parasitárias; Doenças nutricionais; Melhoramento animal; Economia e administração; Endereços.
Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E)
Palavras-chave: Gade de corte; Melhoramento genético; Alimentação; Bovino; Manejo; Sanidade Animal.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/112933

Arroz de sequeiro: variedades recomendadas para Roraima.
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.
Tipo: Folhetos
Palavras-chave: Sequeiro; Variedades; Roraima; Arroz; Rice; Varieties.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687627

Ocorrência dos besouros enroladores-de-folhas Hybolabus amazonicus Voss e H. columbinus (Erichson) (Coleoptera, Attelabidae) em castanheira (Bertholletia excelsa Humb.&amp; Bonpl., Lecythidaceae).
Provedor de dados: 14
Autores: GARCIA, M. V. B.; PAMPLONA, A. M. S. R.; ANDREAZZE, R.
Observacoes sobre H. amazonicus foram feitas em um plantio de dois anos em areas experimentais do Centro de Pesquisa Agroflorestal da Amazonia Ocidental (CPAA). As especies H. amazonicus e H. columbinus foram observadas na Fazenda Aruana, proximo ao municipio de Itacoatiara,AM. Os adultos dessas especies danificam a superficie superior das folhas novas e maduras. As folhas jovens sao cortadas e enroladas pelas femeas durante a construcao do ninho. Ainda que a maior parte dos ninhos caia ao chao logo que construidos, as larvas completam o desenvolvimento ate a fase adulta ainda dentro destes. A retirada dos ninhos das folhas e a coleta dos que se encontram no chao e' uma medida de controle. Embora seja uma praga de facil controle, e' necessario o seu...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Castanha-do-pará; Hybolabus amazonicus; Hybolabus columbinus; Brasil; Amazonas.; Bertholletia Excelsa; Controle Integrado; Inseto; Praga.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665203

Identificacao de alteracoes geograficas no estuario do Rio Vaza Barris usando imagem LANDSAT e o software SITIM/SGI.
Provedor de dados: 14
Autores: NOGUEIRA, L. C.; SOUZA, W. T. de; MACEDO, A. P. B. A.
bitstream/item/149502/1/Identificacao-de-alteracoes0001.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Imagem digital; Sistemas de informacao geografica.; Sensoriamento Remoto.; Remote sensing.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/358688

Caracteristicas pedoclimaticas dos cerrados.
Provedor de dados: 14
Autores: GIANLUPPI, D.
Tipo: Folhetos
Palavras-chave: Caracteristicas pedoclimaticas; Savana; Cerrado; Climatologia; Climatology.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687570

Cultivo de abobora hibrida.
Provedor de dados: 14
Autores: PEREIRA, W.; MENEZES, J. E.; LOPES, J. F.; HORINO, Y.; MAKISHIMA, N.; LIMA, D. de B.; SILVA, W. L. C. e; CAFE FILHO, A. C.
bitstream/item/102917/1/Cultivo-da-abobora-hibrida-1.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Abobora hibrida; Cultivo; Tetsukabuto; Brasilia; Distrito Federal; Brasil; Cucurbitacea; Cultivation; Cultural method; Hybrid squash.; Cucúrbita Máxima; Cucúrbita Moschata; Cerrado.; Brazil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/756002

Relatório de acompanhamento do Programa Terceiro Ciclo - período 12/02 a 6/02/1996.
Provedor de dados: 14
Autores: MARTINS, G. C.; VIANA, R. O.
Informacoes sobre a atuacao da EMBRAPA-CPAA no Programa do Terceiro Ciclo, Manaus-AM (Brasil).
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Agricultura; Pesquisa.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669298

Conservacao e uso sustentavel da biodiversidade nas zonas aridas e semi-aridas do Brasil.
Provedor de dados: 14
Autores: OLIVEIRA, M. C. de; MAIA, E. M. M.
Caracteristicas das zonas aridas e semi-aridas do Brasil, biodiversidade nas zonas aridas e semi-aridas, estado de conservacao, conservacao in situ de ecossitemas, especies e recursos geneticos no Brasil, estrategias de conservacao ex situ da biodiversidade no Brasil, uso atual e potencial de biodiversidade nas regioes semi-aridas do Nordeste do Brasil, analise critica sobre o uso sustentavel da biodiversidade no Brasil.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Nordeste; Regiao Semi-arida; Ecosystem; Northeast; Semi-arid region; Ecossistema; Biodiversidade; Desenvolvimento Sustentável; Biodiversity; Sustainable development.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132747

Controle biológico natural da entomofauna daninha da laranjeira em Belém e Capitão Poço, Estado do Pará.
Provedor de dados: 14
Autores: SILVA, A. de B.; SOUZA, L. A. de.
O Estado do Pará é hoje grande produtor de laranja, com área produtiva de 6.754 ha, em 1991,segundo o censo do IBGE, abastecendo o mercado de vários municípios, principalmente o do município de Belém. Com o objetivo de avaliar a razão de controle biológico e de determinar as espécies mais importantes no controle biológico das pragas da laranjeira, efetuaram-se levantamentos dos organismos daninhos e benéficos nessa cultura, nos município de Belém e Capitão Poço,Estado do Pará. Usaram-se dez plantas escolhidas ao acaso, durante os períodos de fevereiro a dezembro de 1991 e julho a dezembro de 1992;e de abril de 1992 a dezembro de1993,em Capitão Poço e Belém, respectivamente, onde foram contados todos os insetos pragas e inimigos naturais detectados...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Aschersonia sp; Capitão Poço; Belém; Pará; Brasil; Pests of plants; Sweet oranges.; Controle Biológico; Fruta Cítrica; Laranja; Praga.; Citrus; Amazonia; Biological control.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374425

FOLHA DA FLORESTA 8: informativo do Centro Nacional de Pesquisa de Florestas / CNPFlorestas.
Provedor de dados: 14
bitstream/item/106621/1/v.4n.80001.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Eucalipto; Germoplasma.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/992471

Análise do teor de proteínas e carboidratos em produtos de origem vegetal por RMN de 13C1.
Provedor de dados: 14
Autores: ZERI, A. C. M.; BONAGAMBA, T. J.; COLNAGO, L. A.; BERNARDES FILHO, R.; VIDOTO, E.; PANEPUCCI, H.
bitstream/CNPDIA/9837/1/PA05_96.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: RMN.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29885

Como plantar coco anão.
Provedor de dados: 14
Autores: MELEM JUNIOR, N. J.; SEGOVIA, J. F. O.
Preparo das covas; Época de plantio; Distância entre as plantas; Adubação de covas; Transplante; Adubação de cobertura.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Coco anão; Cultivo; Coconut; Cultivation.; Plantio.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341139

Estudo dos solos do município de Jaguarão.
Provedor de dados: 14
Autores: CUNHA, N. G. da; SILVEIRA, R. J. da C.; SEVERO, C. R. S.
bitstream/item/41400/1/Jaguarao.pdf;  bitstream/item/41401/1/mapa-geomorfologia-e-solos.pdf;  bitstream/item/41402/1/mapa-solos.pdf;  bitstream/item/41403/1/mapa-uso-das-terras.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Caracterização; Jaguarão; EMBRAPA; Centro de Pesquisa Agropecária de Clima Temperado (Pelotas; RS).; Conservação; Geomorfologia; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/739874

Recomendações de linhagens e técnicas para o cultivo de café no Estado do Acre.
Provedor de dados: 14
Autores: PEREIRA, R. de C. A.; BERGO, C. L.; SALES, F. de.
A cultura do café no Estado do Acre se reveste de importância pela sua potencialidade na geração de receita, além de reduzir as importações do produto de outros Estados, bem como contribuir para a melhoria da renda dos pequenos produtores. Mesmo ainda explorada como cultura de subsistência, ela contribui para a geração de empregos, constituindo-se em importante fator de fixação do homem à terra. Neste contexto, a Embrapa Acre vem desenvolvendo trabalhos de introdução, avaliação e caracterização de linhagens de café, com vistas a identificar genótipos com alto potencial produtivo, resistência e/ou tolerância às principais pragas e doenças, e grãos com boa qualidade comercial.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Café Conilon; Recomendações técnicas; Embrapa Acre; Rio Branco (AC); Amazônia Ocidental; Western Amazon; Acre; Amazonia Occidental; Aclimatación; Rendimiento de los cultivos.; Ensayos de variedades; Factores ambientales; Aclimatação; Condição ambiental; Café Catuaí; Rendimento; Café; Café Icatu; Variedade resistente; Campo Experimental.; Crop yield.; Coffea; Environmental factors; Acclimation; Variety trials.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492169

Avaliação de custos de produção em sistemas de policultivo.
Provedor de dados: 14
Autores: NORMANDO, M. C.; MARTINS, G. C.; GUIMARAES, R. dos R.
A utilização inadequada de monocultivos, na região, gerou um alto número de áreas abandonadas, por essa razão, existe a necessidade da recuperação dessas áreas através de sistemas de policultivo, tentando estabelecer condições semelhantes às existentes na floresta primária. Com esse objetivo, o Projeto SHIFT busca desenvolver um sistema de produção agrícola, através de policultivos adaptados à região tropical úmida da Amazônia, que seja social e economicamente viável.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Cultivo Multiplo; Floresta Tropical Úmida; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671752

Manejo da irrigacao e fertirrigacao na cultura da mangueira.
Provedor de dados: 14
Autores: SILVA, E. M.; PINTO, A. C. de Q.; AZEVEDO, J. A.
bitstream/item/101500/1/doc-61.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Mango; Management; Brasil; Brasília; Cultivo; Fertirrigation; Planaltina.; Fertirrigação; Manga; Irrigação; Mangifera Indica.; Manejo; Crop management; Fertigation; Irrigation.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/556741

Analise econômica do sistema de produção de arroz irrigado mecanizado nas regiões Centro-Oeste, Norte e Nordeste do Brasil, em 1994: uma analise ex-ante do impacto econômico.
Provedor de dados: 14
Autores: SILVA, O. F. da.
Caracterização dos sistema de produção de arroz irrigado mecanizado; Analise da conjuntura do arroz irrigado; Custo de produção; Balanço econômico do arroz irrigado mecanizado; Impacto na oferta e impacto monetário, em nível global.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Economic; Analysis; Sistema.; Análise Econômica; Arroz Irrigado; Produção.; Rice.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/203258

Avaliação agronômica de ecotipos de Andropogon gayanus em Rondônia.
Provedor de dados: 14
Autores: COSTA, N. de L.; GONCALVES, C. A.
Avaliou-se desempenho agronomico de ecotipos de A. gayanus, nas condicoes edafoclimaticas de Ariquemes, Rondonia. Resultados obtidos evidenciam desempenho agronomico distinto entre os ecotipos avaliados. Considerando-se rendimentos de MS, teores de PB e distribuicao estacional da forragem produzida, os ecotipos de A. gayanus mais promissores para a formacao e/ou recuperacao de pastagens nas condicoes ecologicas de Ariquemes foram CPAC 3085, CPAC 3086 e CPAC 3087.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Ariquemes (RO); Rondônia; Amazônia Ocidental; Western Amazon.; Gramínea Forrageira; Capim Andropogon; Aclimatação; Andropogon Gayanus; Comportamento de Variedade; Condição Ambiental; Características Agronômicas; Rendimento.; Acclimation; Forage grasses; Agronomic traits; Crop yield.; Environmental factors; Variety trials.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699893

Camarão-da-Malásia: cultivo.
Provedor de dados: 14
Autores: LOBÃO, V. L.
Principais fatores de motivação; Espécies cultiváveis; Ciclo de vida; Etapas do cultivo; Engorda; Controle dos inimigos naturais; Despesa; Aspectos econômicos.
Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E)
Palavras-chave: Camarão-da-Malásia; Cultivo; Aspecto econômico; Economic situation; Espécie; Camarão.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/100642

EMBRAPA 48.
Provedor de dados: 14
Autores: PIPOLO, A. E.
Informações gerais; Características botânicas e agronômicas; Reação às doencas; Resultados.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445156

Alguns aspectos econômicos da cultura do cajueiro no Piauí.
Provedor de dados: 14
Autores: PIMENTEL, C. R. M.
No Brasil, o cajueiro e cultivado em varios Estados, destacando-se o Ceara, o Piaui e o Rio Grande do Norte, que, em conjunto, sao responsaveis por 99% da producao de castanha de caju da Regiao Nordeste, ocupando uma area de 623.559 ha (Tabela 1 e 2). Esses Estados dispoem de um parque industrial constituido por 24 empresas de beneficiamento de castanha, capazes de processar 180 mil toneladas/safra, e empresas de processamento de pedunculo que aproveitam apenas 53 mil toneladas na fabricacao de sucos e doces.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Piaui; Brasil.; Caju; Economia; Produção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/419908

Niveis de agua na cultura da melancia.
Provedor de dados: 14
Autores: ANDRADE JUNIOR, A. S. de; RODRIGUES, B. H. N.; ATHAYDE SOBRINHO, C.; MELO, F. de B.; BASTOS, E. A.; CARDOSO, M. J.; RIBEIRO, V. Q.
bitstream/item/97547/1/PAND690001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Tanque Classe A; Piaui; Brasil.; Citrullus Lanatus; Melancia; Irrigação; Produtividade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/49464

Artrópodes associados ao cajueiro no Brasil.
Provedor de dados: 14
Autores: BLEICHER, E.; MELO, Q. M. S.
O cajueiro, Anacardium occidentale L., ocorre espontaneamente no Brasil, com uma concentracao bastante grande na Regiao Nordeste principalmente no Estado do Ceara. Com a elaboracao da presente lista de artropodes associados ao cajueiro, espera-se facilitar a sua identificacao na cultura. A taxonomia e dinamica, sendo comuns os desmembramentos, os agrupamentos e mesmo a criacao de novas familias e generos, o que tornaria dificil a um nao-especialista se manter atualizado.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Artropodes; Caju pragas Brasil; Acaros.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/419844

Dois ciclos de seleção entre e dentro de famílias de meios-irmãos na variedade de milho BR 5028 São Francisco.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de; SANTOS, M. X. dos.
bitstream/item/87369/1/CPATC-PESQ.-AND.-9-96.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Melhoramento genético; Maize; Genetics improvement.; Milho; Seleção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/359374

INFORMATIVO anual das Comissões Técnicas Regionais de Feijão: cultivares de feijão recomendadas para plantio no ano agrícola 1995/96.
Provedor de dados: 14
Apresentação. Introdução. Instituições participantes das CTFeijão. Cultivares de feijão recomendadas para os Estados. Características das principais cultivares de feijão.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1106701

Manejo florestal.
Provedor de dados: 14
Autores: SILVA, J. N. M.
bitstream/item/197835/1/manejo-florestal-compressed.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Forest; Management; Floresta; Manejo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374358

A cultura do girassol.
Provedor de dados: 14
Autores: CASTRO, C. de; CASTIGLIONI, V. B. R.; BALLA, A.; LEITE, R. M. V. B. de C.; KARAM, D.; MELLO, C. H.; GUEDES, L. C. A.; FARIAS, J. R. B.
Introdução. Exigências climáticas. Escolha de área. Correção da acidez. Preparo do solo. Preparo convencional.Semeadura direta. Controle de plantas daninhas. Controle mecânico de plantas daninhas. Herbicidas para o manejo de plantas daninhas na semeadura direta. Herbicidas registrados para a cultura do girassol. Resíduo de herbicidas na cultura do girassol. Adubação. Época de semeadura. Semeadura. Espaçamento e densidade. Doenças. Pragas. Colheita. Custo de produção e rentabilidade da cultura do girassol. Literatura consultada.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Girassol.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/951393

Novilho precoce: reflexos na eficiência e economicidade do sistema de produção.
Provedor de dados: 14
Autores: CEZAR, I. M.; EUCLIDES FILHO, K.
O cenário futuro indica claramente um avanço dos sistemas de produção em direção a intensificação. Neste contexto, o novilho precoce associado a redução da idade das fêmeas ao primeiro parto apresenta-se como uma mola propulsora da modernização dos sistemas produtivos. Varias são as alternativas passiveis de ser utilizadas para a produção de novilho precoce, sendo todas, quase sempre, resultantes de combinações envolvendo estratégias de alimentação e potencial genético do animal. A simulação de uma fazenda desenvolvendo as atividades de cria, recria e engorda, feita em computador, indicou que idade, por meio de suplementação alimentar a pasto, durante a primeira seca, e confinamento na segunda, reduz a área de pastagens em 18%, aumenta o desfrute anual em...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bovino de corte; Aspecto econômico; Brasil; Steer; Production; Economic situation.; Novilho Precoce; Produção.; Brazil; Beef cattle.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/317315

President Figueiredo Project.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agroflorestal da Amazônia Ocidental.
The project uses a participatory approach and its major objective is to define a methodology that facilitate research development and adoption of technologies by small scale farmers of slash and burn agriculture at the Presidente Figueiredo (Amazonas, Brasil).
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Presidente Figueiredo; Floresta Tropical Úmida; Sistema de Produção; Uso da Terra.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668217

Graviola: instrucoes para cultivo.
Provedor de dados: 14
Autores: PINTO, A. C. Q.; VARGAS RAMOS, V. H.
bitstream/item/121512/1/gtec-06.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cultivo; Cultivation; Soursop.; Annona Muricata; Cerrado; Graviola.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/545304

Disseminação pelo vento do nematóide de cisto da soja (Heterodera glycines).
Provedor de dados: 14
Autores: ANDRADE, P. J. M.; ASMUS, G. L.
bitstream/item/39430/1/cot16-96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Nematoide de cisto; Dissemincao; Soybean cyst nematode; Spred.; Cerrado; Heterodera Glycines; Glycine Max; Vento.; Soja; Wind.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/241125

A cultura do caju.
Provedor de dados: 14
Autores: RAMOS, A. D.; BLEICHER, E.; FREIRE, F. das C. O.; CARDOSO, J. E.; PARENTE, J. I. G.; BARROS, L. de M.; CRISOSTOMO, L. A.; FROTA, P. C. E.; CORRÊA, M. P. F.; PESSOA, P. F. A. P.; MELO, Q. M. S.; OLIVEIRA, V. H. de.
Clima. Solos. Variedades. Propagacao. Formacao de mudas. Plantio. Poda. Irrigacao. Pragas. Doencas. Colheita, armazenamento e comercializacao. Coeficientes tecnicos.
Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E)
Palavras-chave: Cashews; Cultivation; Mobility; Cultivo.; Clima; Solo; Praga; Doença; Climate; Pests; Soil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/111488

TRIGO com qualidade.
Provedor de dados: 14
bitstream/item/124614/1/FD-0321.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Classes comerciais; Classificação.; Farinha.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/842934

Uso da terra no municipio de Aquidauana em 1990 - Pantanal.
Provedor de dados: 14
Autores: SILVA, J. dos S. V. da; ROMERO, H. R.; MARISCO, N.
Este trabalho tem como objetivo identificar as formas de uso da Terra no municipio de Aquidauana, localizado no sudeste do Pantanal, em Mato Grosso do Sul. Foram mapeadas as areas antropicas e identificadas e quantificadas as respectivas classes tematicas de uso. Utilizaram-se imagens de satelite Landsat 5-TM, em papel, na escala 1:250.000, na composicao colorida 3B, 4G e 5R para espacializacao das informacoes e um Sistema de Informacoes Geograficas para a quantificacao das areas. A area do municipio foi calculada em 1.485.526 ha, dos quais 76,8% esta inserida na planicie do Pantanal. Foram mapeadas as seguintes classes de uso: Area Natural (88,42%), Pastagem Cultivada (11,34%), Area Urbana (0,12%) e Area Agricola (0,12%). As terras do municipio sao...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Area antropica; GIS; Antropogenic areas; Geographic information system.; Sensoriamento Remoto; Sistema de Informação Geográfica; Uso da Terra.; Pantanal; Land use; Remote sensing.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/790958

Relatório técnico: 1994/95.
Provedor de dados: 14
Autores: REUNIÃO DA COMISSÃO TÉCNICA REGIONAL DE ARROZ: REGIÃO II, 13., 1995, Cuiabá.
A XIII reunião foi realizada no Centro de Treinamento da EMPAER-MT (CENTRER), em Cuiabá, sob o patrocínio da EMPAER-MT e do CNPAF/EMBRAPA, no período de 21 a 25 de agosto de 1995. Esta região compreende os estados do Paraná, São Paulo, Rio de Janeiro, Espirito Santo, Bahia, Minas Gerais, Goiás, Tocantins, Mato Grosso e Mato Grosso do Sul.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Arroz; Oryza Sativa; Pesquisa.; Rice.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/204789

Recomendações da comissão Centro-Sul brasileira de pesquisa de trigo para 1996.
Provedor de dados: 14
Autores: REUNIAO DA COMISSAO CENTRO-SUL BRASILEIRA DE PESQUISA DE TRIGO, 12., 1996, Londrina.
Recomendacoes de calagem e de adubacao; Qualidade industrial; Recomendacoes de cultivares; Zoneamento e epocas de semeadura; Praticas culturais; Recomendacoes para o controle de doencas e pragas.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recomendacao tecnica; Congresso; Brasil; Parana; Mato Grosso do Sul; Sao Paulo; Technical recommendation; Congress.; Pesquisa; Trigo.; Brazil; Research; Wheat.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/450914

EMBRAPA 46.
Provedor de dados: 14
Informações gerais; Características botânicas e agronômicas; Reação a doenças; Resultados.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445154

Recomendações fitossanitárias para a cultura do tomate industrial nos perímetros irrigados do Submédio São Francisco - ano agrícola 1996.
Provedor de dados: 14
Autores: HAJI, F. N. P.; LIMA, M. F.; TAVARES, S. C. C. de H.; ALENCAR, J. A. de; PREZOTTI, L.
bitstream/CPATSA/7334/1/COT65.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Controle; Brasil; Nordeste; Submédio São Francisco; Pest; Diseases; Control; Irrigation schemes; Northeast; Tomato.; Tomate; Doença; Lycopersicon Esculentum; Perímetro Irrigado; Praga.; Brazil; Tomatoes.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132248

Fruteiras da Amazônia.
Provedor de dados: 14
Autores: SOUZA, A. das G. C. de; SOUSA, N. R.; SILVA, S. E. L. da; NUNES, C. D. M.; CANTO, A. do C.; CRUZ, L. A. de A.
Taxonomia, procedência, aspecto agronômico, cultivo, utilização do fruto, valor nutritivo e receita das fruteira: Abiu. Açaí. Açaí-do-amazonas. Araçá-boi. Araçá-pêra. Babaçu-do-amazonas. Bacaba. Bacabinha. Bacabi. Bacuri. Bacurizinho. Bacuripari. Bacuripari-mirim. Bacuripari-liso. Biribá. Buriti. Cabeça-de-urubu. Cacau. Cacau-do-peru. Camu-camu. Castanha-de-cutia. Castanha-de-galinha. Castanha-do-brasil. Castanha-sapucaia. Cubiu. Cupuaçu. Cupuí. Gogó-de-guariba. Guaraná. Ingá-açu. Ingá-cipó. Ingapéua. Jatobá. Jenipapo. Mapati. Maracujá-do-mato. Mari. Mari-do-amazonas. Mari-do-pará. Marimari. Pajurá. Pajurá-da-mata. Patauá. Piquiá. Pitomba. Pupunha. Puruí. Sapota. Sorva. Sorvinha. Taperebá. Tucumã. Tucumã-do-amazonas. Tucumã-do-pará. Uxi.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Tropical fruits; Agronomic characters; Food; Nutritive values; Alimento; Árvore Frutífera; Botânica; Características Agronômicas; Fruta Tropical; Procedência; Valor Nutritivo; Amazonia; Botany; Fruit trees; Provenance.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/664664

Utilização de fibras vegetais para reforço de plásticos.
Provedor de dados: 14
Autores: MATTOSO, L. H. C.; PEREIRA, N.; SOUZA, M. L. de; AGNELLI, J. A. M.
bitstream/CNPDIA/9817/1/PA03_96.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Fibras vegetais; Plásticos.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27111

Como plantar manga.
Provedor de dados: 14
Autores: MELEM JUNIOR, N. J.; SEGOVIA, J. F. O.
Preparo das covas; Época de plantio; Distância entre as plantas; Adubação de covas; Transplante; Adubação de cobertura.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivo; Mango; Cultivation.; Manga; Plantio.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341140

Zoneamento para a cultura do algodão no Nordeste I. algodão arbóreo.
Provedor de dados: 14
Autores: MEDEIROS, J. da C.; AMORIM NETO, M. da S.; BELTRAO, N. E. de M; FREIRE, E. C.; NOVAES FILHO, M. B. N.
bitstream/item/111095/1/BOLPES31.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Zoneamento; Brasil; Regiao Nordeste.; Algodão.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/897783

Consorciação de leguminosas forrageiras com Capim-jaraguá (Hyparrhenia rufa Nees.) em Porto Velho, Rondônia.
Provedor de dados: 14
Autores: GONÇALVES, C. A.; COSTA, N. de L.
Procurou-se selecionar, em termos de produtividade, composicao botanica e quimica, as melhores leguminosas forrageiras para consorciacao com o capim-jaragua (Hyparrhenia rufa Nees.), nas condicoes ecologicas de Porto Velho, Rondonia. Conclui-se que: Consorciacoes que se mostraram mais compativeis, em termos de rendimento de forragem, composicao botanica e persistencia foram capim-jaragua com S. guianensis cv. Cook e G. striata; Inclusao de leguminosas forrageiras em pastagens de capim-jaragua resultou em incrementos significativos dos teores de proteina bruta da graminea.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Fazenda Rita de Cássia; Porto Velho (RO); Rondônia; Amazônia Ocidental; Western Amazon.; Pastagem Consorciada; Leguminosa Forrageira; Rendimento.; Gramínea Forrageira; Capim Jaraguá; Hyparrhenia Rufa; Aclimatação; Condição Ambiental; Características Agronômicas; Comportamento de Variedade; Mixed cropping; Variety trials; Forage legumes; Forage grasses; Acclimation; Environmental factors; Agronomic traits; Crop yield.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699914

Manutenção de equipamentos laboratoriais.
Provedor de dados: 14
Autores: RABELLO, L. M.; SILVA, A. M. da; BISCEGLI, C. I.
bitstream/CNPDIA/9826/1/RT02_96.pdf
Tipo: Recomendação Técnica (INFOTECA-E)
Palavras-chave: Manutenção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27103

Soja: uma opcao nutritiva.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
Introdução. Receitas.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Receita culinaria; Soybean; Brasil; Parana; Culinary; Receipt.; Nutrição Humana; Soja.; Brazil; Human nutrition.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445139

Comportamento do cajueiro comum e anão precoce submetidos a diferentes tensões de água no solo.
Provedor de dados: 14
Autores: OLIVEIRA, V. H. de; SAUNDERS, L. C. U.; PARENTE, J. I. G.; ALMEIDA, J. I. L. de; MONTENEGRO, A. A. T.
Brotação; Emissão de panículas; Floração; Altura de plantas; Envergadura maior; Produção de castanhas; Tabela.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cajueiro anão-precoce.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/427598

JAVAE: nova variedade de arroz irrigado recomendada para Roraima.
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.; PEREIRA, R. L.
Tipo: Folhetos
Palavras-chave: Javae; Roraima; Irrigated rice; Variety; Arroz Irrigado; Variedade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687538

Recomendações práticas para aquisição de imagens digitais analisadas através do SIARCS.
Provedor de dados: 14
Autores: JORGE. L. A. C.
bitstream/CNPDIA/9809/1/CiT01_96.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Recomendações práticas; Imagens digitais; SIARCS.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29878

Os métodos empregados para análise de solos no Instituto Agronômico do Norte.
Provedor de dados: 14
Autores: IAN.
Publicação não convencional.
Tipo: Folhetos
Palavras-chave: Análise gravimetrica; Colorimetrica; Preparo; Belém; Pará; Brasil; Analisys; Colorimetric; Preparation; Solo; Amazonia; Soil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374263

Automatização de método para análise do volume de gotas de chuva natural ou artificial e sua distribuição com técnicas de processamento de imagens digitais.
Provedor de dados: 14
Autores: CRUVINEL, P. E.; VIEIRA, S. R.; MINATEL, E. R.; MUCHERONI, M. L.; CRESTANA, S.
A principal dificuldade encontrada nos métodos existentes - da força, do fluxo, do momento, da imersão, do óleo e método baseado no uso de papéis marcadores, sensíveis às gotas de água - para a análise do volume de gotas de chuva natural ou artificial está na tarefa de avaliação manual dos diâmetros das gotas para o posterior levantamento do espectro de distribuição das mesmas. Em geral, são utilizadas réguas graduadas e os diâmetros são medidos um a um. O trabalho de reconhecimento do volume de gotas na forma automatizada otimiza a tarefa manual e pode-se determinar a distribuição por área e, consequentemente, as energias cinéticas relacionada, o que auxilia nos estudos com chuvas naturais ou possibilita o dimensionamento de aspersores e ajustes de...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Processamento de imagens.; Chuva Artificial; Irrigação.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29763

Manejo florestal.
Provedor de dados: 14
Autores: SILVA, J. N. M.
Descrição sucinta, mas exata, da tecnologia de manejo sustentado da floresta amazônica. Mais que isso, contém, em sua forma singela, o resultado consolidado de mais de 40 anos de pesquisas na Amazônia. Em especial, as recomendações técnicas aqui feitas traduzem resultados de experimentos conduzidos diretamente pela Embrapa nos últimos 20 anos, sob a liderança da EMBRAPA-CPATU.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Administração; Economia Florestal; Floresta; Manejo; Reflorestamento; Silvicultura.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/916225

Soja: caracterização das cultivares recomendadas para Mato Grosso e Mato Grosso do Sul.
Provedor de dados: 14
Autores: CARNIELLI, A.; ZUFFO, N. L.; HIGASHI, W. H.
BR-6 (Nova Bragg); BR-9 (Savana); BR-16; BR-37; BR/EMGOPA-314 (Garca Branca); BR/IAC-21; CAC-1; Dois Marcos-247; Dois Marcos-339; Dois Marcos-Vitoria; Dourados; EMBRAPA 4(BR-4 RC); EMBRAPA 20 (Doko RC); EMBRAPA 64 (Ponta Pora); EMBRAPA 65 (Itapoty); EMGOPA 313(Anhanquera); FT-Abyara; FT-Estrela; FT-Jatoba; FT-Lider; FT-Seriema; FT-5 (Formosa); FT-10 (Princesa); FT-18 (Xavante); FT-20 (Jau); FT-101; FT-106; FT-107; FT-108; FT-489; FT-2001; IAC-8; IAC-8-2; IAS-5; MG/BR-46 (Conquista); MS/BR-19 (Pequi); MSBR-34 (EMPAER-10); MT/BR-45 (Paiaguas); MT/BR-47 (Canario); MT/BR-49 (Pioneira); MT/BR-50 (Parecis); MT/BR-51 (Xingu); MT/BR-52 (Curio); MT/BR-53 (Tucano); OCEPAR 4=Iguacu; OCEPAR 7=Brilhante; Santa Rosa; UFV/ITM-1.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cultivar; Descricao; Brasil; Mato Grosso.; Soja.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/255166

Desenvolvimento, avaliação e lançamento da cultivar de arroz de sequeiro confiança para Roraima.
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.
bitstream/item/175373/1/cot00396-arroz-acarlos.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Sequeiro; Confianca; Cultivo; Brasil; Roraima; Cultivation; Arroz; Brazil; Rice.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/688323

Ecologia da polinização do bacurizeiro (Platonia insignis Mart.) Clusiaceae.
Provedor de dados: 14
Autores: MAUES, M. M.; VENTURIERI, G. C.
bitstream/item/42799/1/Boletim-Pesquisa-170-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Biologia floral; Pássaro.; Bacuri; Ecologia; Periquito; Platonia Insignis; Polinização.; Psittacidae; Birds; Ecology; Flowering; Pollination.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374450

Uso de leguminosas associadas a microrganismos na revegetação de áreas degradadas: estudo de caso: revegetação de área de mineração de bauxita em Porto Trombetas-Pa.
Provedor de dados: 14
Autores: FRANCO, A. A.; CAMPELLO, E. F. C.; DIAS, L. E.; FARIA, S. M. de.
Levantamento de nodulação das leguminosas. Seleção de estirpes de rizóbio. Dependência micorrízica. Revegetação do estéril. Efeito da escarificação do estéril no estabelecimento das espécies. Revegetação do rejeito. Dinâmica de nutrientes em solo degradado pela mineração da bauxita após revegetação. Exigências nutricionais de espécies leguminosas arbóreas utilizadas na revegetação de áreas degradadas. Tolerância de algumas espécies leguminosas à presença de camadas compactadas do solo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: FBN; Degradação do solo; Código Florestal; BNF; Soil degratation; Soil recuperation.; Forestry codice; Recuperação do Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/628331

Camarão-da-Malásia: mercado.
Provedor de dados: 14
Autores: LOBÃO, V. L.
Este manual pretende auxiliar as pessoas interessadas na carcinicultura de água doce, que estão à procura de informação ampla sobre a prática dos aspectos econômicos e comerciais desta atividade, com o intuito de dimensionar a viabilidade de um investi- mento.
Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E)
Palavras-chave: Camarão-da-Malásia; Aspecto econômico; Economic situation; Production; Costs; Shrimps.; Produção; Custo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/100664

Síntese de atividades do Centro Nacional de Pesquisa de Suínos e Aves, 1994-1995.
Provedor de dados: 14
Autores: EMBRAPA - CNPSA.
Pesquisa em aves; Pesquisa em suinos; Laboratorio de nutricao; Laboratorio de sanidade; Centro de diagnostico em saude animal(CEDISA); Unidade de producao; Difusao e transferencia de tecnologia; Informacao e documentacao; Estatistica; Informatica; Atividades de infra-estrutura e de apoio administrativo; Obras, instalacoes e outros investimentos; Recursos humanos; Orcamentos e financas; Servicos auxiliares; Patrimonio e material; Maquinas e veiculos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: EMBRAPA; Relatório; Research institute; Report.; Instituição de Pesquisa.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/431728

Cultivo consorciado entre feijão e milho precoce em Rio Branco, Acre.
Provedor de dados: 14
Autores: MARINHO, J. T. de S.; COSTA, J. G. da; CAMPOS, I. S.; CUNHA, E. T.
A partir da recomendação pela Embrapa Acre, de materiais de milho precoces e superprecoces para o Estado, tornou-se possível aos agricultores a realização de plantios simultâneos destas culturas, com a finalidade de permitir maior sustentação e rentabilidade ao sistema produtivo.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Cultivo consorciado; Rio Branco (AC); Acre; Amazônia Ocidental.; Feijão; Milho Precoce.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492485

Desempenho agronômico de leguminosas forrageiras nos cerrados de Rondônia.
Provedor de dados: 14
Autores: COSTA, N. de L.; PEREIRA, R. G. de A.
Avaliou-se desempenho agronômico de leguminosas forrageiras, visando selecionar aquelas mais promissoras para formação de pastagens melhoradas nos cerrados de Rondônia. Conclui-se que: Leguminosas forrageiras mais promissoras para formação e/ou renovacção de pastagens nas condições edafoclimáticas dos cerrados de Rondônia foram S. guianensis cv. Minerao, S. guianensis var. Pauciflora BRA-001333 e BRA-008150, S. guianensis var. Vulgaris BRA-019097, S. macrocephala BRA-008419, C. acutifolium BRA-009237, BRA-006483, BRA-009227 e C. brasilianum BRA-006025 e BRA-012297.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Embrapa Rondônia; Vilhena (RO); Rondônia; Amazônia Ocidental; Western Amazon.; Leguminosa Forrageira; Aclimatação; Comportamento de Variedade; Cerrado; Fertilidade do Solo; Condição Ambiental; Características Agronômicas; Rendimento; Campo Experimental.; Environmental factors; Cerrado soils; Variety trials; Soil fertility; Forage legumes; Acclimation; Agronomic traits; Crop yield.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699898

Comparação entre a erodibilidade medida diretamente e a estimada pelo método nomográfico em latossolo amarelo textura muito argilosa.
Provedor de dados: 14
Autores: OLIVEIRA JUNIOR, R. C. de; MEDINA, B. F.
bitstream/item/32758/1/CPATU-BP164.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Amazonas; Manaus; Brasil; Erosion; Measurment.; Erosão; Latossolo Amarelo; Medição; Solo.; Amazonia.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374430

Amendoim BR-1 informações para seu cultivo
Provedor de dados: 14
Autores: CNPA.
bitstream/item/38467/1/Folder-Amendoin-BR-10001.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: BR-1.; Amendoim.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/276412

Anais...
Provedor de dados: 14
Autores: WORKSHOP SOBRE A CULTURA DO DENDÊ, 1995, Manaus.
Pesquisa para a Região Amazônica. Dendeicultura no Brasil. A PROMAK TECNOPALMA - o Programa da Palma. A experiência da CAIAUÉ AGROINDUSTRIAL S/A. A DENPASA/Co Acará (Grupo Cotia). A CRAI/AGROPALMA/AGROPAR - "Marketing e comercialização da cultura do dendê". Colonização. O Programa de Pesquisa e Desenvolvimento do Dendê na Bahia e na Amazônia. Recursos fitogenéticos da Amazônia. Cultura de tecidos de dendê. Estado atual dos conhecimentos sobre a doença amarelecimento fatal (AF) do dendezeiro (Elaeis guineensis Jacq.) no Estado do Pará. Pragas do dendezeiro - sinopse de estudos e atividades desenvolvidas com o Rhynchophorus palmarum na Bahia. Nutrição e adubação do dendezeiro. A Cooperação franco-brasileira no melhoramento de dendê.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Dendê; Elaeis Guineensis.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/672077

Desenvolvimento inicial de espécies florestais estabelecidas em consórcio com aplicações de fungos micorrízicos e adubação.
Provedor de dados: 14
Autores: LIMA, R. M. B. de; AZEVEDO, C. P. de.
Na concepção de sistemas de policultivo como alternativas viáveis para a Amazônia, foi proposto a introdução do componente florestal como elemento estrutural do sistema, para a produção de óleo, frutos e madeira. As espécies castanha-do-brasil (Berthollettia excelsa), paricá (Schizolobium amazonicum), mogno (Swietenia macrophylla), andiroba (Carapa guianensis) e seringueira (Hevea brasiliensis) foram estabelecidas em diferentes combinações com os componentes agrícolas em 2 níveis de adubação (30 e 100%), com a inoculação de fungos micorrizas vesículo-arbusculares ou ausência dos mesmos.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Essência Florestal; Floresta Tropical Úmida; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671751

Alto potencial para grãos no cerrado de Roraima.
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.
Tipo: Folhetos
Palavras-chave: Graos; Sementes; Brasil; Roraima; Seed; Cereals; Savana; Cerrado; Brazil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687536

Avaliacao agronomica de fruteiras nativas do Meio-Norte do Brasil.
Provedor de dados: 14
Autores: LIMA, P. R. de A.; ARAUJO, E. C. E.; ALCOFORADO FILHO, F. G.; VASCONCELOS, L. F. L.
bitstream/item/97540/1/PAND640001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Fruta nativa; Meio-norte; Preservacao; Teresina; Parnaiba; Piaui.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/52448

Sistema de cultivo de melão com aplicação de fertilizantes via água de irrigação.
Provedor de dados: 14
Autores: PINTO, J. M.; SOARES, J. M.; PEREIRA, J. R.; COSTA, N. D.; BRITO, L. T. de L.; FARIA, C. M. B. de; MACIEL, J. L.
Fertirrigacao na cultura do melao: caracterizacao da area experimental, fertirrigacao nitrogenada, potassica e fosfatada; equipamentos de fertirrigacao ; manejo da fertirrigacao: manejo de fertilizantes e da irrigacao; tratamentos fitossanitarios: micosferela, mildio, oidio, mosaico ou virose, broca-do-fruto e mosca-minadora.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cultivo; Melon; Cultivation.; Melão; Irrigação; Cucumis Melo; Fertirrigação.; Irrigation; Fertigation.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132873

Cultura do melão.
Provedor de dados: 14
Autores: DIAS, R. de C. S.; FARIA, C. M. B. de; COSTA, N. D.
Cultura do melão; Origem botânica; Exigências climáticas; Cultivares; Outras cultivares; Comportamento de cultivares no Vale do São Francisco; Exigência de solo; Nutrição e adubação; Tratos culturais; Colheita e comercialização.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cultivo; Melhoramento de planta; Melão; Variedade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/159615

Alguns aspectos econômicos da cultura do cajueiro no Piauí.
Provedor de dados: 14
Autores: PIMENTEL, C. R. M.
Producao de castanha de caju no Piaui; Estrutura fundiaria das principais regioes produtoras; Alternativas para recuperacao e expansao da cajucultura piauiense; Medidas de curto prazo, medio prazo, longo prazo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Piauí.; Caju; Economia; Produção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/425842

Potencial forrageiro de acessos de Arachis sp. nas condições ambientais do Estado do Acre.
Provedor de dados: 14
Autores: VALENTIM, J. F.
A utilização de espécies forrageiras não adaptadas às condições ambientais da Amazônia, tem resultado na degradação das pastagens e na falta de sustentabilidade dos sistemas de produção pecuários tradicionais. Este estudo teve por objetivo avaliar a adaptação, produtividade e distribuição estacional da produção de forragem de acessos de Arachis sp., no período de 1991 a 1993, no Campo Experimental da EMBRAPA-CPAF-Acre, em Rio Branco, Acre. Utilizou-se o delineamento experimental de blocos casualizados, com 5 repetições. Efetuou-se avaliações às 4,8,12 e 16 e às 3, 6, 9 e 12 semanas de crescimento, respectivamente, durante o período chuvoso e seco de 1992 e 1993. Os resultados mostram que o A. pintoi cv. Amarillo e BRA-015121 e o A. glabrata cv. Arbrook,...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Amendoim forrageiro; Forage peanut; Cacahuetes forrajeros; Arachis pintoi cv Amarillo; Arachis glabrata cv Arbrook; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Pastizales; Leguminosas forrajeras; Aclimatación; Arachis sp; Factores ambientales; Rendimiento de los cultivos.; Pastagem; Leguminosa forrageira; Condição ambiental; Variedade resistente; Aclimatação; Rendimento.; Pastures; Forage legumes; Environmental factors; Acclimation; Crop yield.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492655

Relatório de gestão: Centro de Pesquisa Agroflorestal da Amazônia Oriental: maio/1991 - agosto/1996.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agroflorestal da Amazônia Oriental.
Aspectos institucionais. Atividades de pesquisa e desenvolvimento. Atividades de difusão e transferência de tecnologia. Atividades administrativas e de apoio técnico. Atividades de planejamento. Indicadores chave. Perspectivas.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Agropecuária; Pesquisa e desenvolvimento; Pará; Brasil.; Floresta; Instituição de Pesquisa; Transferência de Tecnologia.; Amazonia.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/388872

Associação de fungos à gomose da Acácia-negra. I.Cylindrocladium sp.
Provedor de dados: 14
Autores: SOTTA, E. D.; AUER, C. G.
bitstream/CNPF-2009-09/16561/1/pesq-andam-06.PDF
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Acácia-negra.; Acácia Mearnsii; Cylindrocladium sp; Fungo.; Fungi.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290794

Botrytis cinerea, mofo cinzento da videira.
Provedor de dados: 14
Autores: VALDEBENITO-SANHUEZA, R. M.; SÔNEGO, O. R.; MARCANTONI, G. E. S.
bitstream/item/55218/1/cot020.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Controle.; Doença de Planta; Fungo; Mofo Cinzento; Uva; Viticultura.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/535329

Conteúdos de NPK em biomassa de espécies de azolla cultivadas em várzea do Rio Guamá, em Belém, PA.
Provedor de dados: 14
Autores: MASCARENHAS, R. E. B.; FERREIRA, W. de A.; MODESTO JUNIOR, M. de S.; BOTELHO, S. M.
bitstream/item/42897/1/Boletim-Pesquisa-166-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Várzea do rio Guamá; Pará; Brasil; Irrigated rice.; Adubação Verde; Arroz Irrigado; Azolla.; Amazonia; Green manures.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374438

Estudo do comportamento sexual de equinos da raça pantaneira no periodo peripuberal.
Provedor de dados: 14
Autores: SERENO, J. R. B.; MELO, M. I. V. de; HENRY, M. R. J. M.; CASSALI, G. D.
Por ser essencial no "trabalho de gado" e capaz de suportar marchas por periodos prolongados em areas alagadas. A EMBRAPA-CPAP iniciou, em 1988, trabalhos de conservacao e melhoramento do cavalo Pantaneiro, com pesquisas nas areas de reproducao, nutricao, sanidade, fisiologia de exercicio, genetica e selecao. Dentro da reproducao tem-se estudado a implantacao de estacao de monta, a avaliacao da proporcao macho:femea e comportamento sexual de machos e femeas a campo, entre outros aspectos tecnicos bem estabelecidos no manejo tradicional de outras regioes. Para a implantacao de tecnicas de manejo reprodutivo com sucesso e utilizacao mais racional de cada categoria animal, faz-se necessario considerar suas caracteristicas fisiologicas. Nos machos e de...
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Equino; Cavalo pantaneiro; Equinus; Behaviour; Horse.; Comportamento Sexual; Reprodução Animal.; Reproduction.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/790961

SÃO Francisco: cultivar de arroz irrigado de alta produtividade para o médio e baixo São Francisco.
Provedor de dados: 14
A cultivar São Francisco é recomendada para o sistema de cultivo de arroz irrigado, com controle da lâmina de água, em solos de várzeas dos Estados de Alagoas, Sergipe e Pernambuco. O ciclo cultural é de 130 dias em média, com produção de 6.206 Kg/ha nos estados de AL e SE. Seguem histórico, características principais, dos grãos, culinárias e recomendações técnicas.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: São Francisco; Arroz irrigado; Oryza sativa; Melhoramento genético vegetal; Variedade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/216401

Estudo dos solos do município de Herval.
Provedor de dados: 14
Autores: CUNHA, N. G. da; SILVEIRA, R. J. da C.; SEVERO, C. R. S.
bitstream/item/41396/1/Herval.pdf;  bitstream/item/41397/1/mapa-geomorfologia.pdf;  bitstream/item/41398/1/mapa-solos.pdf;  bitstream/item/41399/1/mapa-uso-das-terras.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Caracterização; Herval; EMBRAPA; Centro de Pesquisa Agropecuária de Clima Temperado(Pelotas; RS).; Conservação; Geomorfologia; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/739873

Prevencao de miiases umbilicais em bezerros criados extensivamente, no Pantanal, atraves da utilizacao de ivermectin.
Provedor de dados: 14
Autores: SERENO, J. R. B.; CATTO, J. B.; SERENO, F. T. P. de S.
A regiao pantaneira apresenta maior aptidao para exploracao de bovinos de corte na fase de cria, devido a solos geralmente fracos que, aliado a outros fatores socioeconomicos e ambientais como inundacoes limitam a implantacao de pastagens cultivadas. Nesse sistema extensivo em pastagens nativas com taxa de lotacao de 3 a 4 UA/ha e utilizacao de pouca mao-de-obra, a mortalidade neonatal de bezerros por miiases e alta, e contribui significativamente para a baixa taxa de desmama observada na regiao. A regiao e carente de assistencia tecnica veterinaria e os cuidados com o recem-nascido sao realizados, na sua grande maioria, por peoes nem sempre habilitados, gerenciados por capatazes pouco capacitados tecnicamente para a administracao de grandes propriedades....
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Miiase umbilical; Avermectina; Bovine; Disease.; Bezerro; Bovino; Doença; Sanidade Animal.; Pantanal.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/788422

Pecuária familiar na Amazônia: uma abordagem dessa realidade esquecida.
Provedor de dados: 14
Autores: VEIGA, J. B. da; TOURRAND, J.-F.; LAU, H. D.
bitstream/item/100281/1/1428.pdf
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Programa; Uruará; Transamazônica; Brasil; Programme.; Agricultura; Pecuária.; Amazonia; Agriculture; Family farms.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/397743

Apresentação do projeto - Impacto Ambiental de sistemas intensivos e integrados de produção de grãos e carne bovina, na região oeste do Brasil.
Provedor de dados: 14
Autores: SALTON, J. C.
bitstream/item/126835/1/DOC-9-1996.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Integração lavoura pecuária.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1020303

Rami recomendações técnicas
Provedor de dados: 14
Autores: Centro Nacional de Pesquisa de Algodão.
bitstream/item/38475/1/Folder-Rami-Recomendacoes0001.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Rami.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/276789

Desempenho agronômico de feijão caupi (Vigna unguiculata L.) de porte enramador no Amapá.
Provedor de dados: 14
Autores: CAVALCANTE, E. da S.
Baseado no potencial do caupi em substituição o "feijão comum" sob a otica do consumo e produção, surge a necessidade de se implementar trabalhos de pesquisa com esta leguminosa, objetivando dispor-se de maiores informações sobre o comportamento agronomico da cultura nos diversos estados da região.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amapá.; Feijão de Corda; Performance; Vigna Unguiculata.; Brazil; Yields.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341843

Dados meteorológicos: 1995.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Uva e Vinho.
bitstream/item/60661/1/CNPUV-DOC.17-96.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bento Gonçalves; Rio Grande do Sul; Viticultura; Uva; Meteorologia; Clima.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/538707

Recomendação técnica para produção de mudas enxertadas de manga em Rio Branco- Acre.
Provedor de dados: 14
Autores: LEDO, A. da S.; MIRANDA, E. M. de; ALMEIDA, N. F. de.
Com o objetivo de determinar os melhores métodos de enxertia para a região de Rio Branco, o Centro de Pesquisa Agroflorestal do Acre - Embrapa/CPAF/Acre desenvolveu estudos sobre a eficiência dos métodos de garfagem em fenda cheia, garfagem à inglesa simples e garfagem embutida ordinária para a produção de mudas de manga.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Producción de plántulas; Portainjertos; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental.; Reprodução Vegetal; Manga; Muda; Enxerto; Mangifera Indica; Garfagem; Transferência de Tecnologia.; Produção; Technology transfer.; Seedling production; Rootstocks.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492263

Estudo dos solos do município de Santa Vitória do Palmar.
Provedor de dados: 14
Autores: CUNHA, N. G. da; SILVEIRA, R. J. C. da; SEVERO, C. R. S.; SOARES, M. J.; COSTA, C. das N.; CRUZ, S. N.
bitstream/item/41413/1/Santa-vitoria-do-palmar.pdf;  bitstream/item/41414/1/mapa-capacidade-de-uso.pdf;  bitstream/item/41415/1/mapa-geomorfologia-e-solos.pdf;  bitstream/item/41416/1/mapa-solos.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Caracterização; Brasil; Rio Grande do Sul; Santa Vitória do Palmar; EMBRAPA; Centro de Pesquisa Agropecuária de Clima Temperado (Pelotas; RS).; Conservação; Geomorfologia; Levantamento; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/740001

Potencial produtivo e características agronômicas das cultivares de cevada cervejeira recomendadas para a região Sul do Brasil.
Provedor de dados: 14
Autores: MINELLA, E.; SÓ e SILVA, M.; ARIAS, G.
O conhecimento desses fatores permitirá que os agentes de assistência técnica, e os próprios produtores, escolham entre as cultivares recomendadas a que melhor atende às necessidades de seu cliente, ou da propriedade, assim como alcancem maior garantia de sucesso nessa exploração.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Recomendação; Cultivar.; Brazil; Barley.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849784

Estudo dos solos do município de Morro Redondo.
Provedor de dados: 14
Autores: CUNHA, N. G. da; SILVEIRA, R. J. C. da; SEVERO, C. R. S.
bitstream/item/41408/1/Morro-Redondo.pdf;  bitstream/item/41409/1/mapa-geomorfologia-e-solos.pdf;  bitstream/item/41410/1/mapa-solos.pdf;  bitstream/item/41411/1/mapa-uso-das-terras.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Estudo; Rio Grande do Sul; Morro Redondo.; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/744943

DIMPIVO - Programa para computacional para dimensionamento de sistemas de irrigação pivô central: manual do usuário.
Provedor de dados: 14
Autores: ANDRADE JUNIOR, A. S. de; AGUIAR NETTO, A. de O.; BASTOS, E. A.
Instalação e acesso; Operação; Definição dos termos técnicos; Recomendações; Sugestões.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Dimensionamento.; Irrigação.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/68894

Alguns aspectos da maturação da semente de feijão (Phaseolus vulgaris L.).
Provedor de dados: 14
Autores: VIEIRA, E. H. N.; VIEIRA, N. R. de A.
Procurou mostrar que vagens verdes, com sementes aparentemente imaturas, podem ser colhidas, pois muitas sementes estão aptas a produzir novas plantas. Pode-se, assim, proceder a colheitas precoces para obtenção de novas gerações, antes da maturação completa das vagens.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bean; Seed; Maturation.; Feijão; Maturação; Phaseolus Vulgaris; Semente.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/203599

Quantificações das populações de bactérias em geral, de bactérias resistentes a antibióticos e de actinomicetos em solos.
Provedor de dados: 14
Autores: PEREIRA, J. C.; NEVES, M. C. P.; DROZDOWICZ, A.
Seleção de meios de cultura. Utilização de agentes seletivos. Microrganismos específicos. Manuseio das amostras de solo.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Actinomiceto; Bactéria; Antibiótico; Meio de Cultura; Microrganismo; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/624222

Décimo ciclo de seleção entre e dentro de famílias de meios-irmãos na variedade de milho BR 5011 - Sertanejo.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de; SANTOS, M. X. dos; CARVALHO, P. C. L. de; LEAL, M. de L. da S.
bitstream/item/87827/1/CPATC-PESQ.-AND.-15-96.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Melhoramento genético; Maize; Genetics miprovement; Selection.; Milho; Seleção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/358689

Tomógrafo portátil dedicado a pesquisa agropecuária.
Provedor de dados: 14
Autores: NAIME, J. M.; CRUVINEL, P. E.; CRESTANA, S.
bitstream/CNPDIA/9820/1/CT11_96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Tomógrafo portátil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27104

Instrumento de avaliação para otimizar a comunicação interna na Unidade de trabalho.
Provedor de dados: 14
Autores: BERTUCCI NETO, V.; FRAGALLE, E. P.; REIS, A. P. dos.
A comunicação, do ponto de vista empresarial, pode ser entendida como função indispensável de pessoas e organizações, através da qual se conduz uma relação com o meio ambiente, com os outros e com suas próprias partes, mediante processos internos. Entende-se, por isso, que o equilibrio da organização está na disposição ordenada entre as partes que a compõem. Esse equilibrio e integração dependem fundamentalmente do seu processo comunicacional, ou seja, ao se organizar, uma empresa organiza, de fato, o fluxo de informações a ela relacionadas. Assim, estarão organizando suas relações humanas, administrativas e estratégicas entre suas partes funcionais.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Organizações; Organizar.; Comunicação; Integração.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/25981

Laboratório de Botânica Eng. Agr. João Murça Pires.
Provedor de dados: 14
Autores: EMBRAPA AMAZÔNIA ORIENTAL.
Histório; Importância; Atividades; Herbário; Manutenção; Coleta de material botânico; Desidratação; Identificação; Montagem; Incorporação de espécimes de herbário; Intercâmbio de material botânico; Carpoteca; Fototeca; Xiloteca.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Laboratory.; Botânica; Historia; Laboratório; Pesquisa.; Botany; History; Research.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/854688

Coletor de dados: um subsídio para escolha.
Provedor de dados: 14
Autores: INAMASU, R. Y.
bitstream/CNPDIA/9806/1/BP01_96.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Coletor de dados.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29875

Perspectivas de estudos ecologicos sobre o Pantanal.
Provedor de dados: 14
Autores: CALHEIROS, D. F.; FONSECA JUNIOR, W. C. da, org.
Este trabalho originou-se das discussoes realizadas no "Curso de Ecologia de Areas Alagaveis", ministrado pelo Dr. Wolfgang J. Junk, do Max-Planck Institute fur limnologie - Alemanha e pela Dra Carolina Joana da Silva do Departamento de Biologia da Universidade Federal de Mato Grosso (Cuiaba), em agosto de 1991, no Centro de Pesquisa Agropecuaria do Pantanal - EMBRAPA/CPAP. Sua leitura leva ao entendimento de que, aprofundando-se os conhecimentos e reunindo-se as informacoes, e possivel formar uma base tecnico-cientifica solida para que acoes de manejo possam ser encontradas na regiao dentro dos principios do desenvolvimento sustentavel. Reeditado de forma ampliada quatro anos depois da realizacao daquele evento, este documento foi elaborado em duas partes...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Estudo; Recursos pesqueiros; Hidrology.; Clima; Ecologia; Fauna; Flora; Hidrologia; Limnologia; Solo.; Pantanal; Climate; Ecology; Limnology; Soil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/789744

Estimativa de custo de produção de soja, safra 1996/97.
Provedor de dados: 14
Autores: RICHETTI, A.; MELO FILHO, G. A. de; PARIZOTO, A. M.
bitstream/item/38996/1/COT-13-1996.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Soybean; Production; Costs.; Custo; Glycine Max; Produção; Soja.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/240212

Cuidados com o bezerro recém-nascido em rebanhos leiteiros.
Provedor de dados: 14
Autores: OLIVEIRA, M. C. de S.; OLIVEIRA, G. P. de.
O sistema de criação de bezerros; Cuidados antes do parto; A cura do umbigo; A importância do colostro; Principais doenças dos bezerros-prevenção; Diarréia neonatal; Diagnóstico da desidratação e acidose metabólica em bezerros com diarréia; Hidratação por via parenteal; Doenças respiratórias; Parasitoses; Endoparasitose; Desmama.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Bezerros; Recém-nascido.; Bezerro Leiteiro.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/43656

Declínio do sisal e medidas para seu soerguimento no Nordeste brasileiro.
Provedor de dados: 14
Autores: MOREIRA, J. de A. N.; SILVA, O. R. R. F. da; AMORIM NETO, M. da S.; BELTRO, N. E. de M.; VALE, L. V.; SANTOS, R. F. dos.
Importancia do sisal para o Nordeste; Declinio do sisal; Medidas urgentes para o soerguimento da lavoura do sisal.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Declinio; Soerguimento; Medidas; Brasil.; Sisal.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/270445

Sistema Barreirão: recuperação/renovação de pastagens degradadas em consórcio com culturas anuais.
Provedor de dados: 14
Autores: OLIVEIRA, I. P. de; KLUTHCOUSKI, J.; YOKOYAMA, L. P.; DUTRA, L. G.; PORTES, T. de A.; SILVA, A. E. da; PINHEIRO, B. da S.; FERREIRA, E.; CASTRO, E. da M. de; GUIMARÃES, C. M.; GOMIDE, J. de C.; BALBINO, L. C.
Economicidade das ofertas tecnológicas para a recuperação/renovação de pastagens degradadas. Caracterização e seqüência de aplicação das práticas que compõem o Sistema Barreirão. Provas experimentais do Sistema Barreirão. Locais de avaliação do Sistema Barreirão. Comportamento das pastagens em nível de produtor. Análise socioeconômica do Sistema Barreirão. Outros benefícios gerados pelo Sistema Barreirão. Maquinário agrícola.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Recuperação; Consórcio; Sistema Barreirão.; Cerrado; Pastagem.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/203428

Resposta de Arachis pintoi a fertilização fosfatada.
Provedor de dados: 14
Autores: LEONIDAS, F. das C.; COSTA, N. de L.; TOWNSEND, C. R.
Avaliaram-se efeitos da fertilizacao fosfatada sobre a producao de forragem e composicao quimica de Arachis pintoi cv. Amarillo
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Embrapa Rondônia; Porto Velho (RO); Rondônia; Amazônia Ocidental; Western Amazon.; Leguminosa Forrageira; Fertilizante Fosfatado; Campo Experimental.; Rendimento; Comportamento de Variedade; Forage legumes; Phosphorus fertilizers; Arachis pintoi; Crop yield.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699912

INFORMATIVO anual das Comissões Técnicas Regionais de Feijão: cultivares de feijão recomendadas para plantio no ano agrícola 1996/97.
Provedor de dados: 14
Apresentação. Introdução. Instituições participantes das CTFeijão. Cultivares de feijão recomendadas para os Estados. Características das principais cultivares de feijão.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Feijão; Phaseolus Vulgaris; Melhoramento Genético Vegetal; Variedade.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1106707

Estendendo o modelo de Lockhart de crescimento vegetal levando em conta a sucção da parede celular.
Provedor de dados: 14
Autores: CALBO, A. G.; PESSOA, J. D. C.
O modelo proposto por Lockhart em 1965 para descrever o crescimento de uma célula vegetal foi ampliado para levar em conta a pressão hidrostática do apoplasma.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Modelo; Lockhart.; Célula Vegetal; Crescimento.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27357

Comportamento fenológico do babaçu (Orbignya phalerata Mart.) em três tipos de solo do Piauí.
Provedor de dados: 14
Autores: ARAÚJO, E. C. E.; MENDES, A. M. de C.; RIBEIRO, F. E.
Estudou-se o comportamento fenológico do babaçu (Orbignya phalerata Mart.), em formação natural, envolvendo as fenofases de foliação, floração e fmtificação em três unidades de solo (Aluvial Eutrófico, Litólico Eutrófico e Plintossolo) da base física do CPAMN-Teresina, no período de fevereiro de 1985 a janeiro de 1986. As palmeiras foram estratificadas nas classes de altura baixa (333 m a 4,93 m), média (5,02 m a 7,97 m) e alta (8,03 m a 9,75 m), utilizandose, em cada unidade de solo, 16 palmeiras de cada classe, perfazendo 48 por unidade e 144 no total. O babaçu produziu, em média, 5,6 folhas/plantdano e esse valor não sofreu influência marcante da classe de altura e tipo de solo. O número médio de espatas, cachos masculinos e cachos femininos produzidos...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Piaui; Brasil.; Babaçu; Fenologia; Orbignya Phalerata; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/49563

Reformulação das deduções de Lockhart levando em conta a turgescência e a sucção como fatores de crescimento.
Provedor de dados: 14
Autores: PESSOA, J. D. C.; CALBO, A. G.
bitstream/CNPDIA/9821/1/PA12_96.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Deduções de Lockhart.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27105

Mosca-branca e as geminiviroses do tomateiro.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Hortalicas (Brasilia, DF).
Mosca-branca. Geminiviroses. Controle.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Geminivirose; Transmissao; Controle; Tomato; Pest; Insect; Whitefly; Disease; Vector; Transmission; Geminiviruse; TLCV; TYLCV; Control.; Bemisia Tabaci; Doença; Inseto; Lycopersicon Esculentum; Mosca Branca; Praga; Tomate; Vetor; Vírus.; Bemisia argentifolii.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/756352

Recomendações práticas para utilização do SIARCS 3.0 nos estudos de raízes, cobertura vegetal, folhas e outras aplicações.
Provedor de dados: 14
Autores: JORGE, L. A. C.
bitstream/CNPDIA/9808/1/RT04_96.pdf
Tipo: Recomendação Técnica (INFOTECA-E)
Palavras-chave: SIARCS 3.0; Estudos de raízes.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29877

Introdução e avaliação de cultivares de repolho (Brassica oleracea var. capitata) para o período seco no estado do Acre.
Provedor de dados: 14
Autores: LEDO, F. J. da S.; SOUSA, J. A. de; ARAUJO, H. M. de; SILVA, M. R. da.
As cultivares utilizadas pelos produtores acreanos são pouco adaptadas às condições climáticas locais. Novas cultivares de repolho adaptadas às temperaturas elevadas e resistentes às principais doenças, têm sido lançadas no mercado pelos órgãos de pesquisa pública e firmas privadas. Como existem poucas informações no Estado em relação ao comportamento dessas cultivares, foi iniciado um trabalho de introdução e avaliação, com o objetivo de identificar germoplasmas adaptados às condições edafoclimáticas do Acre.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Cultivares; Cultivo; Condições edafoclimáticas; Acre; Amazônia Ocidental.; Brassica Oleracea; Repolho.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492261

Potencialidade da fruticultura no estado do Acre.
Provedor de dados: 14
Autores: LEDO, A. da S.
O objetivo do presente trabalho é apresentar um breve relato da situação da fruticultura estadual e despertar o interesse pelo potencial de aproveitamento de diversas fruteiras nativas, no estado do Acre.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Acre; Amazônia Ocidental.; Economia; Fruticultura.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492647

Campilobacteriose genital bovina em rebanhos de corte do Estado de Mato Grosso do Sul: resultados preliminares.
Provedor de dados: 14
Autores: PELLEGRIN, A. O.; SERENO, J. R. B.; LEITE, R. C.; COSTA, G. M. da.
O estado de Mato Grosso do Sul e considerado um dos maiores criatorios de bovinos de corte do pais e sua taxa de natalidade esta entre 60 e 70%, enquanto que na regiao do Pantanal este indice e de 56% (Cadavid Garcia 1986). Rosa &amp; Melo (1995) levantando planteis de reprodutores no Pantanal indicaram que a proporcao touro:vaca utilizada varia de 1:12 a 1:17 elevando-se assim os custos de utilizacao de reprodutores melhorados. Em experimento realizado no Pantanal, Sereno (comunicacao pessoal) observou que nao existe em termos de fertilidade quando utilizadas proporcao sexual de 1:10, 1:25 e 1:40, o que confirma os resultados de Crudelli (1992) e Costa e Silva et al.(1993), podendo ser diminuida esta proporcao sem prejuizo para a produtividade do rebanho....
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Campilobacteriose genital; Bovine; Disease.; Bactéria; Bovino; Campylobacter Fetus; Doença; Vibriose.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/790960

Manejo florestal sustentado em áreas de reserva legal de pequenas propriedades rurais do PC. Pedro Peixoto-Acre.
Provedor de dados: 14
Autores: ARAUJO, H. J. B. de; OLIVEIRA, L. C. de.
Iniciado em meados de 1995, o projeto de manejo florestal sustentado para pequenas propriedades tem como principal característica a prescrição de uma intervenção de baixo impacto sobre a floresta por meio de "métodos artesanais" de exploração de madeira, que consideram os baixos recursos materiais disponíveis pelos pequenos produtores. A primeira parte deste documento apresenta uma descrição sintetizada da metodologia utilizada. A segunda parte apresenta as etapas já executadas e seus respectivos resultados.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Manejo florestal sustentado; Reserva legal; Pequenas propriedades rurais; Projeto Pedro Peixoto; Acre; Amazônia Ocidental.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492258

Técnica de indução de raios X por partículas na identificação e medida da concentração de elementos e elementos-traço em solos e plantas.
Provedor de dados: 14
Autores: CRUVINEL, P. E.; CRESTANA, S.
Indução de raios X por partículas (PIXE) é uma técnica quue permite a detecção simultânea de todos os elementos com número atômico acima do Mg. Téccnicas nucleares têm proporcionado uma série de contribuições importantes no campo das novas metodologias para estudo de elementos e elementos-traço em amostras de solo e plantas.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Técnicas nucleares; PIXE; Metais pesados; Dejetos industriais.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29696

A importância do boro para a videira.
Provedor de dados: 14
Autores: FRÁGUAS, J. C.
bitstream/item/25710/1/ComT17.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Boro; Nutrição Vegetal; Uva; Viticultura.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/534768

Zoneamento para cultura do algodao no Nordeste.II.Algodao arboreo.
Provedor de dados: 14
Autores: MEDEIROS, J. da C; AMORIM NETO, M. da S.; BELTRÃO, N. E. de M.; FREIRE, E. C.; NOVAES FILHO, M. de B.
bitstream/item/33389/1/ZONEMANTO.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Arboreo; Zoneamento; Brasil; Nordeste; Prennial Cotton.; Algodão; Gossypium Hirsutum.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/269458

Cultivares de milho para os tabuleiros costeiros de Sergipe.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de; SANTOS, M. X. dos; LEAL, M. de L. da S.
bitstream/item/69424/1/CPATC-COM.-TEC.-06-96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Tabuleiros costeiros; Cultivar; Brasil; Sergipe.; Milho.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/357783

Sistema de controle da pesca de Mato Grosso do Sul - SCPESCA/MS: 1 maio/1994 a abril/1995.
Provedor de dados: 14
Autores: CATELLA, A. C.; PEIXER, J.; PALMEIRA, S. da S.
Nesse documento encontram-se as informacoes coletadas e organizadas pelo SISTEMA DE CONTROLE DA PESCA DE MATO GROSSO DO SUL - SCPESCA/MS, para o periodo de maio/1994 a abril/1995. Essas informacoes foram obtidas para todo o pescado (profissional e esportivo) oficialmente vistoriado e desembarcado no Estado. Foi registrado um total de 1.433,5 toneladas de pescado, onde 28,1% corresponde a pesca profissional e a 71,9% a pesca esportiva. As especies mais capturadas foram: pacu (655,9t), pintado (253,5t), cachara (104,5t), piranha (duas especies, 77,0t), piavucu (69,3t), barbado (68,8t), dourado (63,4t), jau (42,0t) e curimbata (20,6t). A contribuicao dos rios mais piscosos foi: Paraguai 42,7%, Miranda 26,2%, Aquidauana 7,5%, Taquari 6,3% e Cuiaba (localmente...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Controle; Mato Grosso do Sul; Fishery; Control; System.; Pesca.; Brazil; Pantanal.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/790957

Pesquisa em várzea.
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.; MEDEIROS, R. D.; DO O, W. C. R.; PEREIRA, R. L.; FREITAS, J. Q.
Tipo: Folhetos
Palavras-chave: Low land; Pesquisa; Várzea; Research.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687537

Considerações técnicas sobre os principais problemas na lavoura de arroz irrigado em Roraima.
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.
Tipo: Folhetos
Palavras-chave: Roraima; Irrigated rice; Production; Arroz Irrigado; Produção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687571

Competição de linhagens de feijão de corda (Vigna unguiculata L.Walp) tipo ereto nos Tabuleiros Costeiros de Sergipe.
Provedor de dados: 14
Autores: SERPA, J. E. S.
bitstream/item/87219/1/CPATC-PESQ.-AND.-05-96.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Linhagens; Ereto; Tabuleiro costeiro; Sergipe.; Feijão de Corda; Vigna Unguiculata.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/359501

Ensaio de observação de linhagens de arroz irrigado em várzea de Roraima.
Provedor de dados: 14
Autores: CORDEIRO, A. C. C.
Tipo: Folhetos
Palavras-chave: Arror irrigado; Brasil; Roraima; Irrigated rice; Várzea; Brazil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/688324

Influência do clima na vindima de 1996 na Serra Gaúcha.
Provedor de dados: 14
Autores: MANDELLI, F.
bitstream/item/55222/1/cot023.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Região da Serra Gaúcha; Rio Grande do Sul; Viticultura; Uva; Clima; Meteorologia; Colheita; Brotação; Floração.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/536423

Biodiversidade e produção sustentável de alimentos e fibras nos Cerrados: anais.
Provedor de dados: 14
Autores: SIMPÓSIO SOBRE O CERRADO, 8.; INTERNATIONAL SYMPOSIUM ON TROPICAL SAVANNAS, 1., 1996, Brasilia, DF.
O Brasil e um dos paises com maior diversidade genetica, respondendo por cerca de 30% das plantas e especies animais que ocorrem no mundo. Dentre os diferentes biomas brasileiros, os Cerrados, com seus 207 milhoes de hectares, apresenta uma grande diversidade faunistica e floristica em suas diferentes fisionomias vegetais. Ate meados deste seculo esta regiao era considerada como marginal para producao agricola, no entanto, devido ao desenvolvimento da pesquisa e de tecnologias agricolas que viabilizaram sua utilizacao em bases economicas, hoje ela e responsavel pela producao de cerca de 35% de graos e carnes do pais. O modelo de ocupacao da terra utilizado, baseado no uso intensivo de insumos e maquinas pesadas, se de um lado, no ultimos vinte anos,...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agricultura sustentada; Fibres; Sustainability; Plant production; Feed crops; Socioeconomic organization; Brasil; Japão; BIBJICACPAC; Alimento; Cerrado; Fertilidade do Solo; Fibra; Floresta; Manejo do Solo; Melhoramento Vegetal; Pastagem; Planta Forrageira; Produção; Produção Animal; Produção Vegetal; Recurso Natural; Silvicultura; Cooperação Internacional; Pesquisa; Biodiversidade; Desenvolvimento Socio-Econômico; Animal production; Biodiversity; Food production; Forestry; Natural resources; Pastures; Plant breeding; Savannas; Silviculture; Soil fertility; Soil management.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/551822

Preparo das sementes de estilosantes "Mineirao" para semeadura.
Provedor de dados: 14
Autores: SOUZA, F. H. D. de.
bitstream/item/105113/1/COT53.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Mineirao; Brasil Central; Escarificacao; Seed; Scarification; Inoculation; Savanna.; Cerrado; Estilosante; Inoculação; Leguminosa; Legume; Semente; Stylosanthes Guianensis.; Brazil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/321083

Produção de mudas por estaquia de Lagerstroemia indica.
Provedor de dados: 14
Autores: ROTTA, E.; TAVARES, F. R.; SOUSA-LANG, V. A. de.
bitstream/CNPF-2009-09/16553/1/com_tec11.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Extremosa; Arborizacao urbana; Estaquia; Propagação.; Espécie nativa; Muda.; Lagerstroemia indica.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290781

Fungos associados a Eucalyptus spp. no Paraná e em Santa Catarina.
Provedor de dados: 14
Autores: MASCHIO, L. M. de A.; AUER, C. G.; GRIGOLETTI JUNIOR, A.
bitstream/CNPF-2009-09/16560/1/pesq-andam-05.PDF
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Paraná; Santa Catatina.; Eucalyptus spp; Fungo.; Fungi.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290792

Utilização de gliricídia no sistema de cultivo em alameda nos solos de tabuleiros costeiros.
Provedor de dados: 14
Autores: BARRETO, A. C.; FERNANDES, M. F.
bitstream/item/87360/1/CPATC-PESQ.-AND.-06-96.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Solos; Tabuleiros costeiros; Leguminosas perenes.; Adubação Verde; Gliricidia.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/358011

Manejo da irrigação em hortaliças.
Provedor de dados: 14
Autores: MAROUELLI, W. A.; SILVA, W. L. de C. e; SILVA, H. R. da.
Disponibilidade de agua no solo; Necessidade de agua das hortalicas; Metodos de manejo da irrigacao; Manejo da agua em microirrigacao; Fertirrigacao de hortalicas; Manejo da agua versus ocorrencia de doencas; Manejo de agua na fase de pre-emergencia e transplante; Epoca de paralisacao das irrigacoes; Lamina de agua total necessaria; Recomendacoes para o uso de tensiometros.
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Vegetable; Management.; Hortaliça; Manejo.; Irrigação; Irrigation.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/756333

Competição de linhagens de feijão de corda (Vigna unguiculata L. Walp) tipo ramador nos tabuleiros costeiros de Sergipe.
Provedor de dados: 14
Autores: SERPA, J. E. S.
bitstream/item/87604/1/CPATC-PESQ.-AND.-12-96.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Feijão macassar; Cultivo; Brasil; Sergipe; Tabuleiros costeiros; Bean; Cultivation; Coastal tablelands.; Feijão de Corda.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/358695

Como plantar cupuaçu.
Provedor de dados: 14
Autores: MELEM JUNIOR, N. J.; SEGOVIA, J. F. O.
Formação de mudas; Sombreamento; Preparo das covas; Época de plantio; Distância entre as plantas; Adubação de covas; Transplante; Adubação de cobertura.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivo; Cultivation.; Cupuaçu; Plantio; Theobroma Grandiflorum.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341144

Manejo de cultivares de aveia recomendadas pela EMBRAPA - Pecuária Sudeste.
Provedor de dados: 14
Autores: PRIMAVESI, A. C.; PRIMAVESI, O.; GODOY, R.
bitstream/CPPSE/11328/1/PROCIComT13ACP1996.00126.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Recomendação; EMBRAPA-CPPSE; Avena.; Aveia.; Oats; Varieties.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/43368

Meios de cultura específicos para o isolamento de bactérias endofíticas que fixam N2 atmosférico.
Provedor de dados: 14
Autores: BALDANI, V. L. D.; BALDANI, J. I.; DÖBEREINER, Johanna.
bitstream/CNPAB-2010/27137/1/cot012.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bactéria endófitica; Endophytic bacteria; Atmospheric nitrogen.; Meio de Cultura; Nitrogênio Atmosférico.; Culture media.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/623430

Índice de erosividade das chuvas na região de Conceição do Araguaia, Pará.
Provedor de dados: 14
Autores: OLIVEIRA JUNIOR, R. C. de.
bitstream/item/42896/1/Boletim-Pesquisa-165-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Precipitação atmosférica; Conceição do Araguaia; Pará; Brasil; Precipitation; Erosion.; Erosão.; Amazonia.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374434

Observações e identificação dos insetos coletados em culturas na área experimental do Projeto SHIFT.
Provedor de dados: 14
Autores: ANDREAZZE, R.; PAMPLONA, A. M. S. R.
O presente trabalho teve o objetivo de conhecer a entomofauna ocorrente nas áreas de cultivo do Projeto SHIFT (ENV-23), bem como acompanhar o aparecimento de alguns insetos e suas fases de desenvolvimento.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Floresta Tropical Úmida; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671741

Contagem de células somáticas e california mastitis test no diagnóstico da mastite caprina subclínica.
Provedor de dados: 14
Autores: SILVA, E. R. da; SAUKAS, T. N.; ALVES, F. S. F.; PINHEIRO, R. R.
A mastite e uma doenca altamente prevalente em rebalnhos leiteiros de todo o mundo. Os agentes causais das mastites em caprinos sao semelhantes aqueles da doenca em bovinos, sendo os Staphylococcus coagulase positiva os mais frequentes patogenos associados a forma clinica e os Staphylococcus coagulase negativa a forma subclinica da mastite caprina. O diagnostico da mastite clinica e facil, baseado primariamente nos sinais clinicos; entretanto, o diagnostico da forma subclinica e um problema, tendo-se como metodos auxiliares os testes fisico-quimicos do leite e os baseados no aumento do conteudo celular da glandula mamaria. Por serem rapidos e de facil execucao, os testes baseados no aumento celular do leite sao muito utilizados, sendo o California Mastitis...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Diagnostic.; Caprino; Mamite; Diagnóstico; Goats; Mastitis; California mastitis test.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514270

O cupuaçuzeiro (Theobroma grandiflorum) em sistemas agroflorestais.
Provedor de dados: 14
Autores: SOUSA, S. G. A. de; WANDELLI, E. V.; PERIN, R.; MATOS, J. C. de S.; NEVES, A. L.; FERNANDES, E. C. M.
Subsídios para o plantio de cupuaçu em sistemas agroflorestais, para recuperação de áreas de pastagens abandonadas e degradadas em Manaus-AM.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Cultivo; Agrofloresta; Brasil; Amazonas; Manaus; Cupuaçu; Theobroma Grandiflorum.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/666684

Associação de cultivos entre caupi e milho precoce em Rio Branco, Acre.
Provedor de dados: 14
Autores: MARINHO, J. T. de S.; COSTA, J. G. da; CAMPOS, I. S.; CUNHA, E. T.
O consorciamento entre as culturas de milho e caupi é prática cultural tradicionalmente difundida entre pequenos agricultores do Norte e Nordeste do país. No Estado do Acre esta prática é adotada, predominantemente, por pequenos agricultores que realizam seus plantios nas várzeas dos rios, quando o volume das águas diminui. Na associação, a cultura principal é o caupi, tendo em vista que o milho plantado neste período é utilizado praticamente para consumo, na forma de milho verde. Em áreas de terra firme, o cultivo associado é pouco utilizado. Assim, a pesquisa desenvolvida no campo experimental da Embrapa Acre, entre 1994 e 1996, possibilitou avaliar a consorciação entre milho e caupi em áreas de terra firme na região de Rio Branco.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Explotación agrícola familiar; Granjas pequeñas; Cultivo mixto; Maíz; Caupi; Acre; Amazonia Occidental.; Western Amazon; Amazônia Ocidental; Rio Branco (AC); Milhacre; Ensayos de variedades; Agricultura Familiar; Pequeno Produtor; Consorciação de Cultura; Vigna Unguiculata; Zea Mays; Milho Precoce; Comportamento de Variedade.; Feijão de Corda; Variety trials.; Mixed cropping; Corn; Cowpeas; Family farms; Small farms.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492486

Cancro da haste da soja: epidemiologia e controle.
Provedor de dados: 14
Autores: YORINORI, J. T.
O agente causal; Desenvolvimento da doenca; Sintoma; Modo de disseminacao; Sobrevivencia do patogeno; Hospedeiros do fungo do cancro da haste; Controle; Consideracoes sobre algumas praticas culturais e seus efeitos sobre a incidencia do cancro da haste.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Fitopatologia; Brasil; Soybean; Disease; Phytopathology.; Doença; Fungo; Soja.; Brazil; Fungi.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/460380

Influência da eliminação de gemas e profundidade de plantio sobre enraizamento de estacas de porta-enxertos de videira.
Provedor de dados: 14
Autores: KUHN, G. B.; BORBA, C. da S.
Experimentos foram conduzidos para verificar a infludncia da eliminação de gemas e da profundidade de plantio sobre o enraizamento de estacas de porta-enxertos de videira. As estacas foram plantadas em viveiro, no sistema de valas, com delineamento experimental inteiramente casualizado. No porta-enxerto Kober 5BB foi estudado o efeito da eliminaçao de gemas, com os seguintes tratamentos: 1. estacas com a permanência só da gema superior; 2. estacas com a permanencia da gema superior e a da base; 3. estacas com a permangncia sd das duas gemas superiores; 4. estacas com a permanencia de todas as gemas. Nos porta-enxertos S04 e Rupestris du Lot foi estudada a influência da profundidade de plantio das estacas, com os seguintes tratamentos: I. plantio a 15 cm de...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Propagação; Porta-enxerto.; Enraizamento; Pratica Cultural; Uva; Viticultura.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/536414

Cultura do rami no agreste nordestino.
Provedor de dados: 14
Autores: FREIRE, E. C.; MEDEIROS, J. da C.; ANDRADE, F. P. de.
Caracteristicas da fibra do rami; Condicoes ideais para exploracao do rami; Preparo do solo e plantio; Adubacao; Processo de multiplicacao; Cultivares; Tratos culturais e colheita; Pragas e doencas; Producao, custo e comercializacao; Beneficiamento industrial; Rami na alimentacao animal.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Cultivo; Brasil; Nordeste; Paraiba; Cultivation.; Boehmeria Nivea; Rami.; Ramie.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/270446

Produção de sementes de soja em Roraima.
Provedor de dados: 14
Autores: BRAGA, R. M.
bitstream/item/191741/1/Producao-de-sementes-de-soja.PDF
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Roraima; Soyabean; Seed; Production; Produção; Semente; Soja.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687534

Recomendações técnicas sobre sistemas de controle automáticos para agricultura irrigada.
Provedor de dados: 14
Autores: TORRE NETO, A.
bitstream/CNPDIA/9828/1/RT05_96.pdf
Tipo: Recomendação Técnica (INFOTECA-E)
Palavras-chave: Agricultura irrigada; Sistemas de controle automáticos.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27045

Espacamento e adubaco nitrogenada em melancia. II. Efeito sobre a qualidade dos frutos.
Provedor de dados: 14
Autores: GARCIA, L. F.
bitstream/item/97543/1/PAND660001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Adubacao nitrogenada; Prodicao; Citrulus lanatus.; Espaçamento; Melancia.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/51759

Plantas forrageiras das caatingas: usos e potencialidades.
Provedor de dados: 14
Autores: LIMA, J. L. S. de.
Coleta de analises; descricao e usos das especies: camaratuba, carqueija, catingueira-verdadeira, espinheiro/jacurutu/jiquiri, facheiro, favela/faveleira, feijao-brabo, imbuzeiro/umbuzeiro, juazeiro, jurema-preta, jurema-vermelha, macambira, mandacaru/mandacaru-de-boi, manicoba, marmeleiro/marmeleiro-preto, moleque-duro, mororo/unha-de-vaca, quebra-faca, sabia, sete-cascas/cascudo/pau-de-casca. Comentarios gerais e recomendacoes.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Camaratuba; Carqueija; Catingueira-verdadeira; Jacurutu; Jiquiri; Facheiro; Favela; Feijao-brabo; Umbuzeiro; Juazeiro; Jurema-preta; Jurema-vermelha; Mandacaru; Marmeleiro; Moleque-duro; Unha-de-vaca; Quebra-faca; Sete-cascas; Pau-de-cascas; Calliandra depauperata; Chloroleucon foliolosum; Pilosocereus pachycladus; Capparis flexuosa; Mimosa arenosa; Cereus jamacaru; Manihot pseudoglaziovii; Cordia leucocephala; Bauhinia cheilantha; Croton conduplicatus; Tabebuia spongiosa; Forrageira nativa; Planta nativa; Feed crops.; Planta forrageira; Caatinga; Caesalpinia Pyramidalis; Bromelia Laciniosa; Cascudo; Cnidoscolus Phyllacanthus; Cratylia mollis; Cróton Sonderianus; Espinheiro; Macambira; Maniçoba; Mororó; Sabiá; Spondias Tuberosa; Ziziphus Joazeiro.; Forage; Mimosa caesalpiniifolia; Mimosa tenuiflora.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132354

Resumo dos trabalhos...
Provedor de dados: 14
Autores: TALENTO ESTUDANTIL DO CENARGEN, 1996, Brasília, DF.
A evolução dos mapas genéticos; Influência da temperatura de cultivo no crescimento e toxicidade do isolado S93 de Bacillus thuringiensis supesp. Kurstaki; Efeito da previsibilidade alimentar no vigor da prole de Podisum nigrispinus; Diagnóstico molecular para uso e preservação de germoplasma equino.
Tipo: Livros
Palavras-chave: Biology; Genetic; Biologia; Biotecnologia; Controle Biológico; Genética; Biotechnology.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/171474

Producao de "chips" [de] mandioquinha-salsa.
Provedor de dados: 14
Autores: SANTOS, F. F. dos; PEREIRA, A. S.
Escolha da cultivar; Selecao de raizes; Pre-limpeza; Lavacao das raizes; Descascamento; Segunda selecao; Fatiamento; Lavacao das fatias; Secagem; Fritura; Salga e aditivos; Acondicionamento; Embalagens; Armazenamento.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Mandioquinha-salsa; Batata baroa; Chips; Peruvian carrot; Arracacha; Chips production; Processing.; Arracacia Xanthorrhiza; Processamento; Tecnologia.; Technology.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/755859

INFORMATIVO anual das Comissões Técnicas Regionais de Arroz: cultivares de arroz recomendadas para plantio no ano agrícola 1996/97.
Provedor de dados: 14
Introdução. Instituições participantes da comissões técnicas regionais de arroz. Cultivares de arroz recomendadas para os estados.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Arroz; Oryza Sativa; Variedade; Melhoramento Genético Vegetal.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1107053

Tratamento de sementes de milho com fungicidas.
Provedor de dados: 14
Autores: LUZ, W. C. da.
bitstream/item/83998/1/CNPT-CIRCULAR-7-TRATAMENTO-DE-SEMENTES-DE-MILHO-COM-FUNGICIDA-FL-13434.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Defensivo agrícola.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/849770

A pupunheira (Bactris gasipaes) em sistemas agroflorestais.
Provedor de dados: 14
Autores: GARCIA, S.; WANDELLI, E.; PERIN, R.; MATOS, J.; NEVES, A.; FERNANDES, E.
A pupunheira (Bactris gasipaes) em sistemas agroflorestais: subsídio para a elaboração de um programa de pesquisa e desenvolvimento do cultivo da pupunha, em Manaus-AM.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas.; Bactris Gasipaes; Pupunha.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/666683

Avaliacao do desempenho do camu-camu (Myrciaria dubia (H.B.K.) McVaugh) em terra firme, na regiao de Manaus,AM.
Provedor de dados: 14
Autores: SILVA, S. E. L. da; SOUZA, A. das G. C. de.
Este trabalho tem como objetivo avaliar o desempenho do camu-camu em terra firme no Campo Experimental do Centro de Pesquisa Agroflorestal da Amazonia Ocidental (CPAA) em Latossolo Amarelo muito argiloso. O plantio foi realizado, em 1991, em espacamento de 5m entrelinhas e 4m entre plantas, avaliando-se dez plantas em linha. A altura media e diametro do caule das plantas, quatro anos apos o plantio, e de 2,77m e 2,25cm, respectivamente. A frutificacao de abril a maio de 1994 teve media de 91 frutos/planta. Em 1995, houve dois periodos de producao, abril e novembro, com maior numero de frutos em abril. A producao anual por planta variou de 105 a 193 frutos, com peso medio de 11,5g, diametro transversal de 2,57cm, longitudinal de 2,39cm e 7,7 Brix.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Camu-camu; Desempenho; Brasil; Amazonas; Manaus.; Myrciaria Dubia; Performance.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665437

Confiança: cultivar de arroz de sequeiro recomendada para o Amapá.
Provedor de dados: 14
Autores: ATROCH, A. L.
A Embrapa-Amapá (Centro de Pesquisa Agroflorestal do Amapá) com o apoio do Centro Nacional de Pesquisa de Arroz e Feijão - CNPAF, desenvolve estudos de avaliação de linhagens e cultivares de arroz de sequeiro favorecido que tem como objetivo introduzir, avaliar e selecionar materiais com determinadas características desejaveis para plantio no Amapá.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Brasil; Amapá; Upland rice.; Arroz Sequeiro; Oryza Sativa; Variedade.; Brazil; Varieties.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341862

Comportamento do mamoeiro (Carica papaya L.) em sistema de policultivo, submetido a dois níveis de adubação e inoculação com FMVA: produção.
Provedor de dados: 14
Autores: ARAÚJO, R. da C.; MARTINS, G. C.; SILVA, S. E. L. da.
Este trabalho foi conduzido em uma área de recuperação de um seringal abandonado, com o objetivo de verificar os efeitos de dois níveis de adubação e inoculação ou não de plantas de mamoeiro, CV Sunrise Solo, com esporos de FMVA (Glomus etunicatum), proveniente da Alemanha, sobre as características de produção durante 22 meses de observações (94/95).
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Cultivo Multiplo; Floresta Tropical Úmida; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671744

Estudo dos solos do município de Arroio Grande.
Provedor de dados: 14
Autores: CUNHA, N. G. da; SILVEIRA, R. J. da C.; SEVERO, C. R. S.
bitstream/item/41384/1/Arroio-Grande.pdf;  bitstream/item/41385/1/mapa-capacidade-de-uso.pdf;  bitstream/item/41386/1/mapa-geomorfologia-e-solos.pdf;  bitstream/item/41387/1/mapa-solos.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Caracterização; Rio Grande do Sul; EMBRAPA; Centro de Pesquisa Agropecuária de ClimaTemperado(Pelotas; RS).; Conservação; Geomorfologia; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/739870

Espacamento e densidade de semeadura para trigo irrigado no cerrado.
Provedor de dados: 14
Autores: SILVA, D. B. da.
bitstream/item/121501/1/gtec-03.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Spacing; Wheats.; Cultura Irrigada; Densidade de Semeadura; Cerrado; Espaçamento; Trigo.; Irrigated farming.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/545307

Nova praga na cultura da manga no Submédio São Francisco.
Provedor de dados: 14
Autores: HAJI, F. N. P.; ALENCAR, J. A. de; PREZOTTI, L.; CARVALHO, R. S. de.
bitstream/CPATSA/33348/1/COT64.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Controle; Proteção de cultura; Brasil; Submédio São Francisco; Mango.; Manga; Praga.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/157153

Análise da densidade de madeira por tomografia.
Provedor de dados: 14
Autores: VAZ, C. M. P.; PEREIRA, J. C. D.; CRESTANA, S.; NAIME, J. M.; CRUVINEL, P. E.
bitstream/CNPDIA/9836/1/PA02_96.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Madeira; Tomografia.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29884

Recomendações para a quebra de dormência de sementes e formação de mudas de graviola (Annona muricata L.) em Rio Branco - Acre.
Provedor de dados: 14
Autores: LEDO, A. da S.; CABANELAS, C. I. L.
A gravioleira (Annona muricata L.) originária da América Central, vem sendo cultivada nas regiões Norte e Nordeste do Brasil. Esta fruteira possui ótimo mercado consumidor, com grandes perspectivas para a exportação,. Os frutos apresentam uma polpa agradável para o consumo in natura, sendo também utilizada em grande escala como matéria-prima pelas fábricas de processamento de frutas. O Centro de Pesquisa Agroflorestal do Acre - CPAF-Acre da Embrapa, desenvolveu estudos com o objetivo de avaliar diversos métodos de quebra de dormência para acelerar o processo de germinação de sementes, visando posterior recomendação para a produção de mudas de graviola.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Guanabana; Recomendações técnicas; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Sapotes agrios.; Germinación de las semillas; Quebra de dormência; Salida de la latencia; Producción de plántulas; Semente; Produção; Muda; Annona muricata; Graviola; Germinação.; Seed germination; Seedling production; Dormancy breaking.; Soursops.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492167

Relatório do primeiro encontro técnico nacional sobre o amarelecimento fatal do dendezeiro.
Provedor de dados: 14
Autores: MULLER, A. A.
bitstream/item/197896/1/FL01461.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Amarelecimento fatal; Elaeis guineesis; Plant diseases; Dendê; Doença de Planta.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375461

Recomendações básicas para a cultura do cafeeiro no Estado do Acre.
Provedor de dados: 14
Autores: PEREIRA, R. de C. A.; SA, C. P. de; SALES, F. de.
O café no Acre vem se constituindo uma das culturas permanentes de maior destaque, uma vez que está se tomando presente em quase todos os municípios do Estado. A maior área de cultivo no Estado abrange os municípios de Rio Branco, Sena Madureira, Brasiléia, Capixaba e Xapuri (IBGE,1994). Apesar da importância sócio-econômica do café para o Acre, a sua produtividade é baixa (974 Kg/ha de café côco). Essa produtividade pode ser melhorada introduzindo-se novas tecnologias, tais como: espaçamentos adequados, novas linhagens de cultivares melhoradas e controle de pragas e doenças de importância econômica. O moderno cafeicultor não pode ficar alheio às novas tecnologias que possibilitam a obtenção de altas produtividades e um produto de melhor qualidade, a um...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Adopción de innovaciones; Rendimiento de los cultivos.; Plantación; Produtividade da planta; Café; Plantio; Inovação; Transferência de Tecnologia.; Coffea; Planting; Crop yield; Technology transfer; Innovation adoption.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492264

Avaliação e seleção de cultivares de repolho visando maior produtividade na região agreste de Sergipe.
Provedor de dados: 14
Autores: NUNES, M. U. C.; LEAL, M. de L. da S.
bitstream/item/149501/1/Avaliacao-e-selecao0001.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Hortaliças; Melhoramento genético; Brasil; Sergipe; Brassica oleracae.; Produção; Repolho.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/358690

Introducao e avaliacao de forrageiras em "cordilheira" desmatada na sub-regiao da Nhecolandia, Pantanal Mato-Grossense.
Provedor de dados: 14
Autores: COMASTRI FILHO, J. A.; POTT, A.
A bovinocultura de corte, principal atividade economica da sub-regiao da Nhecolandia, do Pantanal, devido, principalmente, a problemas nutricionais, apresenta baixos indices de produtividade. A alimentacao dos bovinos e constituida de pastagens nativas, geralmente de produtividade ou valor nutritivo baixos e de baixa disponiblidade nos meses de cheia. Face a esta situacao, o CPA-Pantanal, entre 1980 e 1985, realizou um experimento de introducao e avaliacao da forrageira em area de "cordilheira" desmatada com o objetivo de identificar gramineas e leguminosas adaptaveis as suas condicoes ecologicas. As forrageiras (43 gramineas e 123 leguminosas) foram plantadas em parcelas de 1,5 x 3,0 m. Foram utilizadas duas parcelas, por local, para cada especie, uma com...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Planta graminea forrageira; Cordilheira; Resistencia a pragas; Resistencia a doencas; Tolerancia a seca; Plant; Grass; Pasture.; Gramínea; Leguminosa; Pastagem; Produção.; Pantanal; Forage; Disease resistance; Drought tolerance; Legumes; Pest resistance.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/789742

Valorização do leite e derivados no minicípio de Nossa Senhora da Glória - Sergipe.
Provedor de dados: 14
Autores: CERDAN, C.; MITTERNIQUE, S.
Destinos da produção leiteira do Município de nossa Senhora da Gloria. Pequenas empresas de produção de queijo artesanal. Contexto econômico da comercialização do leite e dos derivados.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Queijo artesanal; Empresa familiar; Sergipe; Leite; Cadeia Produtiva; Produção; Milk.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/888520

Avaliação econômica de três linhagens de café recomendadas para o estado do Acre.
Provedor de dados: 14
Autores: SÁ, C. P. de; PEREIRA, R. de C. A.; SALES, F. de.
bitstream/CPAF-AC/1012/1/comunicado70.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Café Conilon.; Café; Comportamento de Variedade; Rentabilidade; Pratica Cultural.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492262

Sistema caatinga- Buffel- Leucena para produção de bovinos no semi-árido.
Provedor de dados: 14
Autores: GUIMARAES FILHO, C.; SOARES, J. G. G.; RICHE, G. R.
Apresenta a caracterizacao do sistema CBL (Caatinga, Capim-buffel, e leucena), areas potenciais para implantacao, dimensionamento do sistema, estabelecimento dos pastos cultivados: capim buffel, leucena. Manejo do sistema, outras tecnologias e praticas associadas ao sistema, produtividade e impacto esperados.
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Capim-buffel; Leucana; Sistema CBL; Buffel grass; Production; CBL system.; Produção animal; Capim buffel; Pastagem; Bovino; Caatinga; Cenchrus ciliaris; Leucaena Leucocephala; Produção.; Animal production; Cattle.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/132213

Manual de vermicompostagem.
Provedor de dados: 14
Autores: RICCI, M. dos S. F.
Em Rondônia, um dos grandes desafios para a agricultura é a baixa fertilidade da maioria dos solos . Um forma eficiente e relativamente barata de se melhorar a fertilidade dos solos é a aplicação de adubos orgânicos, dentre os quais o vermicomposto vem se mostrando uma excelente opção. Este trabalho é destinado a produtores e interessados na produção de vermicomposto, para fins comerciais ou próprio.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Vermicompostagem; Humus earthworm; Oligoqueta.; Fertilidade do Solo; Adubo Orgânico; Composto Orgânico; Húmus; Minhoca.; Organic fertilizers; Soil fertility; Organic compounds; Vermicomposting; Lumbricus rubellus.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/698959

O dessecamento do cacho de uva.
Provedor de dados: 14
Autores: FRÁGUAS, J. C.; SÔNEGO, O. R.; GRIGOLETTI JUNIOR, A.
bitstream/item/25989/1/ComT19.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Dessecamento; Murchadeira do cacho; Viticultura; Uva; Distúrbio fisiológico.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/537235

Aspectos sobre a estrutura agrária na Amazônia: sugestões para a pesquisa agropecuária.
Provedor de dados: 14
Autores: HOMMA, A. K. O.; IANNUZZI, A. C. da S.; NEVES, A. F. da S.
bitstream/item/229049/1/Aspectos-sobre-a-estrutura-agraria.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Agropecuária; Aspecto economico; Brasil; Economic aspect; Agrarian structure; Estrutura Agrária; Pesquisa; Uso da Terra; Amazonia; Agriculture; Land use; Research.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374698

Avaliação de germoplasma de mandioca (Manihot esculenta, Crantz), "Tipo Mesa", em Roraima - 2o. Ano
Provedor de dados: 14
Autores: LIMA, M. B.; GIRARDI, J. L.; RIBEIRO, P. H. E.
Tipo: Folhetos
Palavras-chave: Avaliacao; Germoplasma; Mandioca.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/687463

Método de determinação da granulometria de ingredientes para uso em rações de suínos e aves.
Provedor de dados: 14
Autores: ZANOTTO, D. L.; BELLAVER, C.
bitstream/item/58546/1/CUsersPiazzonDocuments215.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Ration; Granulometry.; Granulometria; Ração.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/433741

Avaliação do desempenho do cacau-do-Peru (Theobroma bicolor Humb. &amp; Bonpl.) na região de Manaus, AM.
Provedor de dados: 14
Autores: SOUZA, A. das G. C. de; SILVA, S. E. L. da; SOUSA, N. R.
Avaliacao do desempenho do cacau-do-peru (Theobroma bicolor) nas condicoes edafoclimaticas de Manaus. O plantio foi feito em tres linhas com cinco plantas cada, em espacamento de 6m x 6m, em Latossolo Amarelo. As plantas encontram-se com altura media de 6,9m, variando entre 4,0m a 13,0m. O diametro medio do caule, a 30 cm do solo, e o de copa estao em torno de 13,8cm e 4,0cm, respectivamente. A producao iniciou no terceiro ano apos o plantio, sendo que a media por planta, seis anos apos o plantio, foi de 16,6 futos. Vale ressaltar que tres plantas nao produziram e uma produziu 35 frutos. O peso medio de fruto esta entre 780g a 1116g, com diametro transversal de 10,9 cm e longitudinal de 18,7cm. O numero de amendoas por fruto e' de 49, com peso medio por...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Cacau-do-peru; Desempenho; Avaliacao; Brasil; Amazonas; Manaus; Performance evaluation.; Theobroma Bicolor.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665447

Identificação de alvos agrícolas em imagens digitais Landsat: uma aplicação em Guaíra, SP.
Provedor de dados: 14
Autores: MIRANDA, J. I.
Uma classificação supervisionada, usando analise discriminante por máxima verossimilhança (maxver), foi usada em uma área do município de Guaíra, SP, para identificar em sete classes diferentes alvos agrícolas: cultura anual, cana-de-açúcar, solo nu, solo semicoberto, pasto, floresta e água, usando imagens do satélite Landsat 5, sensor TM, em formato digital nas bandas 3, 4, e 5 (vermelho, infravermelho próximo e médio, respectivamente). A matriz final de classificação do maxver apresentou performance global de 85%, que e o exato valor mínimo aceitado na literatura. A imagem temática do resultado mostra um bom nível de identificação das classes, onde pode-se confirmar o bom desempenho da técnica de máxima verossimilhança para classificar imagens digitais...
Tipo: Folhetos
Palavras-chave: Classificacao supervisionada; Guaíra; Sensoriamento remoto; Geologia; Fisiografia; Clima; Solo; Água; Agricultura; Remote sensing; Landsat.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/12453

Estudo dos solos do município de Pelotas.
Provedor de dados: 14
Autores: CUNHA, N. G. da; SILVEIRA, R. J. da C.
bitstream/item/41392/1/Pelotas.pdf;  bitstream/item/41393/1/mapa-geomorfologia.pdf;  bitstream/item/41394/1/mapa-solos.pdf;  bitstream/item/41395/1/mapa-uso-das-terras.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Caracterização; Rio Grande do Sul; Pelotas.; Conservação; Geomorfologia; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/739840

Anais...
Provedor de dados: 14
Autores: WORKSHOP SOBRE AS CULTURAS DE CUPUAÇU E PUPUNHA NA AMAZÔNIA, 1., 1996, Manaus.
Trabalhos de pesquisa sobre cupuaçu e pupunha na Amazonia.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Manaus.; Bactris Gasipaes; Cupuaçu; Pesquisa; Pupunha; Theobroma Grandiflorum.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668786

Jurara: cultivar de mandioca (Manihot esculenta Crantz) recomendada para mata de terra firme no Amapá.
Provedor de dados: 14
Autores: BEZERRA, V. S.
Com o objetivo de selecionar cultivares superiores as locais, a Embrapa Amapá iniciou um programa de melhoramento genético, através de processos de seleção de genotipos em área de mata de terra firme. Através de sucessivos testes de produção, avaliou-se o comportamento agronômico de vários genotipos introduzidos, principalmente em relação ao caráter produtividade e a incidência de doenças.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Brasil; Amapá.; Manihot Esculenta.; Mandioca; Cassava.; Brazil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341864

Legislação brasileira sobre o intercambio de agentes de controle biológico.
Provedor de dados: 14
Autores: MORAES, G. J. de; SA, L. A. N. de; TAMBASCO, F. J.
O controle do trânsito voluntário de organismos para controle biológico se dá através da legislação de cada país. Essa legislação nem sempre está facilmente disponível aos usuários e demais interessados. Com esta publicação os autores procuram facilitar o entendimento, além de caracterizar a abrangência da legislação brasileira no que se refere ao intercâmbio de agentes de controle biológico.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Quarentenário; Microorganismos; Controle biológico; Legislação; Quarentena; Inseto; Praga de planta; Inimigo natural; Exportação; Importação.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/12452

Desempenho produtivo de gramíneas forrageiras nos cerrados de Rondônia.
Provedor de dados: 14
Autores: COSTA, N. de L.; PEREIRA, R. G. de A.; TOWNSEND, C. R.
Avaliou-se desempenho produtivo de gramineas forrageiras, visando a identificacao das mais promissoras para a formacao de pastagens melhoradas nos cerrados de Rondonia. Conclui-se que: Gramineas forrageiras mais promissoras para a formacao e/ou renovacao de pastagens nas condicoes ecologicas dos cerrados de Rondonia foram Brachiaria brizantha CPAC-3413, B. decumbens CPAC-3464 e CPAC-2475, Paspalum plicatulum CPAC-3241 e Panicum maximum cv. Centenario
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Embrapa Rondônia; Vilhena (RO); Rondônia; Amazônia Ocidental; Western Amazon.; Gramínea Forrageira; Campo Experimental.; Cerrado; Fertilidade do Solo; Produtividade; Características Agronômicas; Forage grasses; Crop yield; Agronomic traits.; Cerrado soils.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699913

Embrapa 58.
Provedor de dados: 14
Autores: PIPOLO, A. E.
Informações gerais; Reação às doenças; Características botânicas e agronômicas; Resultados.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Variedade; Soybeans; Cultivars.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445147

Analisador granulométrico de solos.
Provedor de dados: 14
Autores: VAZ, C. M. P.; NAIME, J. M.; SILVA, A. M. da.
bitstream/CNPDIA/9835/1/CT05_96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Granulométrico.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/27076

Quadros estaduais de cultivares de soja recomendadas para a safra 1996/97.
Provedor de dados: 14
Autores: COMISSOES REGIONAIS DE AVALIACAO E RECOMENDACAO DE CULTIVARES DE SOJA - REGIOES I E II (CRC-SOJA I E CRC-SOJA II).
Cultivares de soja recomendadas para o Estado do Rio Grande do Sul; Santa Catarina; Paraná; Mato Grosso do Sul; Mato Grosso; Goiás e o Distrito Federal; Minas Gerais; Tocantins; Rondônia; Bahia; Maranhão; Piauí; Regiões Norte e Nordeste do Brasil.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Recomendacao de cultivar; Brasil; Rio Grande do Sul; Santa Catarina; Parana; Mato Grosso do Sul; Goias; Distrito Federal; Minas Gerais; Tocantins; Bahia; Piaui; Soybean; Variety; Recommendation.; Soja.; Brazil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445886

Análise de pesticidas por técnicas eletroanalíticas.
Provedor de dados: 14
Autores: VAZ, C. M. P.; CRESTANA, S.; MACHADO, S. A. S.; MAZO, L. H.; AVACA, L. A.
bitstream/CNPDIA/9832/1/CT07_96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Pesticidas; Eletroanalíticas; Técnicas.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29881

Relatório...
Provedor de dados: 14
Autores: WORKSHOP SOBRE SISTEMAS SUSTENTÁVEIS DE PRODUÇÃO AGROPECUÁRIA, 1996, Dourados.
Apresentacao do projeto impacto ambiental de sistemas intensivos e integrados de producao de graos e carne bovina, na regiao oeste do Brasil; Conceitos de sustentabilidade, sistemas de producao e agroecologia; Conceito e modelagem de agroecossistema; Formacao tecnica, enfoque sistemico e agroecologia; O objeto da sustentabilidade como decorrencia da visao cientifica da realidade; Modelos de simulacao e agroecossistemas; Agroecossistemas; Modelagem e simulacao de sistemas; Modelos con ceituais e de simulacao; Enfoque de sistemas nas disciplinas; Fitossanidade; Agua no solo; Dinamica dos nutrientes; Materia organica no solo; Erosao no solo; Adubacao em pastagem; Avaliacao economica de sistemade producao; Integracao agropecuaria.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Agropecuaria; Sistema; Sustentabilidade; Congresso; Brasil; Centro Oeste.; Produção.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/240402

Introdução e avaliação de cultivares de alface (Lactuca sativa L.), para o período seco no Acre.
Provedor de dados: 14
Autores: LEDO, F. J. da S.; SOUSA, J. A. de; SIVIERO, A.; ARAUJO, H. M. de; SILVA, M. R. da.
Os trabalhos de pesquisa em melhoramento com alface no país, têm obtido grandes progressos, com desenvolvimento de cultivares de alface lisa e, mais recentemente, crespa, com maior resistência ao pendoamento precoce e às principais doenças. Tendo em vista a reduzida informação no Estado em relação às novas cultivares disponíveis no mercado, este trabalho foi realizado com o objetivo de avaliar o comportamento de doze cultivares de alface, durante o período seco (julho a agosto) em Rio Branco, Acre.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Lactusa sativa L; Cultivares; Acre; Amazônia Ocidental.; Alface.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492611

Avaliação de cultivares e porta-enxertos de citros em Rio Branco-Acre, no período de 1991 a 1995.
Provedor de dados: 14
Autores: LEDO, A. da S.; RITZINGER, R.; AZEVEDO, F. F. de.
O Estado do Acre apresenta condições edafoclimáticas para a exploração citrícola com um rendimento médio de 105, 26 ton./ha, com o cultivo de laranja, limão e tangerina. Considerando a Região Norte, o Acre ocupa o segundo lugar, após o Estado do Pará, em relação à área colhida e produção. Apesar da citricultura ter um potencial econômico para explorar, a produção estadual é insuficiente para atender o consumo local, principalmente no período de entressafra e para o abastecimento de pequenas indústrias de suco, atividade em expansão no Estado. Este trabalho tem o objetivo de avaliar o desempenho de 16 cultivares enxertadas sobre quatro porta-enxertos de citros nas condições edafoclimáticas de Rio Branco, AC.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Citros; Avaliação de cultivares; Porta-enxerto; Rio Branco (AC); Acre; Amazônia Ocidental.; Limão; Laranja; Tangerina.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/492172

Dados meteorológicos: 1994.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Uva e Vinho.
bitstream/item/60658/1/CNPUV-DOC.16-96.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bento Gonçalves; Rio Grande do Sul; Viticultura; Uva; Meteorologia; Clima; Colheita; Brotação; Floração.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/535667

Uso de microscopia de força atômica para visualização de bacteriófagos filamentosos.
Provedor de dados: 14
Autores: BERNARDES FILHO, R.; OSIRO, D.; HERRMANN, P. S. P.; COLNAGO. L. A.; FROMMER, J. E.
Dentre as várias ferramentas que possibilitam o conhecimento das estruturas das moléculas biológicas, em nível atômico, a técnica da Difração de Raios X por monocristais tem tido papel preponderante.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Moléculas biológicas; NRM; Difração de Raios X; Microscópios de varredura por tunelamento (STM); Microscopia de força atômica (AFM).
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/29008

Uso de gesso agrícola nos solos dos cerrados.
Provedor de dados: 14
Autores: SOUSA, D. M. G. de; LOBATO, E.; REIN, T. A.
Caracterização e extensão do problema da acidez nos solos dos cerrados; Alterações nas características químicas do solo com o uso do gesso agrícola; Respostas de culturas anuais; Respostas de culturas perenes; Recomendações do gesso.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Correção do solo; Brasil; Fertilization; Gesso agrícola; Subsoil acidity; Uso.; Acidez do Solo; Adubação; Cerrado; Corretivo; Enxofre; Gesso; Solo.; Acidity; Cerrado soils; Gypsum; Brazil; Phosphogypsum; Soil; Savannas; Subsoil.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/554409

Eficácia de fungicidas no controle da antracnose da videira.
Provedor de dados: 14
Autores: SÔNEGO, O. R.; GRIGOLETTI JUNIOR, A.; ZARPELON, S. L.
A antracnose, causada pelo fungo Elsinoe ampelina, constitui-se numa das mais importantes doenças da videira no Rio Grande do Sul. Seu controle químico é fundamental no inicio da brotação, quando as tecidos jovens sgo mais sensíveis. Este trabalho teve o objetivo de avaliar a eficácia de fungicidas no controle do fungo causador da antracnose. O experimento foi realizado na EMBRAPA-Centro Nacional de Pesquisa de Uva e Vinho, nas cvs. Riesling Renano e Flora, em 1988, 1990 e 2991. Foram feitos 11, 16 e 8 tratamentos, em cada ano, respectivamente. O delineamento experimental foi em blocos ao acaso, com quatro repetições. As aplicações foram realizadas com pulverizador costal manual nos estádios 5,9,12 e 15 da escala fenológica da videira, descrita por...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Controle.; Antracnose; Doença de Planta; Fungo; Fungicida; Uva; Viticultura.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/538681

Controle integrado de mastite bovina.
Provedor de dados: 14
Autores: BRITO, J. R. F.; BRESSAN, M.
bitstream/item/132469/1/Livro-Controle-integrado-da-mastite-bovina.pdf
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Mastite; Integrated control.; Controle Integrado; Leite.; Mastitis; Milk.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/592224

Programa e resumos.
Provedor de dados: 14
Autores: CONGRESSO BRASILEIRO DE VITICULTURA E ENOLOGIA, 8., 1996, Bento Gonçalves.
Tipo: Anais e Proceedings de eventos
Palavras-chave: Enologia; Uva; Vinho; Viticultura.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/535540

Avaliação agronômica sob pastejo de Andropogon gayanus cv. Planaltina consorciado com Desmodium ovalifolium.
Provedor de dados: 14
Autores: COSTA, N. de L.; MAGALHÃES, J. A.; PEREIRA, R. G. de A.; TOWNSEND, C. R.
Procurou-se avaliar o efeito da carga animal sobre a produtividade e composicao quimica de pastagens de Andropogon gayanus cv. Planaltina consorciadas com Desmodium ovalifolium CIAT-350, nas condicoes edafoclimaticas de Porto Velho, Rondonia. Concluiu-se que: Aumento da carga animal reduziu significativamente a disponibilidade total de forragem, ocorrendo o inverso quanto aos teores de PB; A percentagem de leguminosas na pastagem foi diretamente proporcional a carga animal; Considerando-se a disponibilidade e qualidade da forragem e composicao botanica da pastagem, recomenda-se utilizacao de 1,5 e 1,0 UA/ha, respectivamente para periodos chuvoso e seco.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Embrapa Rondônia; Porto Velho (RO); Rondônia; Amazônia ocidental; Western Amazon.; Pastagem Consorciada; Gramínea Forrageira; Leguminosa Forrageira; Campo Experimental.; Andropogon Gayanus; Capim Andropogon; Desmódio; Desmodium Ovalifolium; Comportamento de Variedade; Aclimatação; Condição Ambiental; Características Agronômicas; Rendimento; Crop yield.; Mixed cropping; Forage grasses; Forage legumes; Desmodium heterocarpon subsp. ovalifolium; Variety trials; Acclimation; Environmental factors; Agronomic traits.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699885

Glossario de recursos geneticos vegetais.
Provedor de dados: 14
Autores: VALOIS, A. C. C.; SALOMAO, A. N.; ALLEM, A. C.
bitstream/item/172245/1/Glossario-de-recursos-geneticos-vegetais.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Glossario %% Genetic resource; Plant; Glossary.; Planta; Recurso Genético.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/173032

Cadastro viticola do Rio Grande do Sul.
Provedor de dados: 14
Autores: BRASIL. Ministério da Agricultura e do Abastecimento. Delegacia Federal da Agricultura do Estado do Rio Grande do Sul.
bitstream/item/148400/1/Cadastro-Viticola-do-Rio-Grande-do-Sul.pdf
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Cadastro Vitivinicultura; Rio Grande do Sul; Cadastro vitícola; Viticultor; Parreiras; Variedades (uva); Vinhedos (situação); Safra (uva); Políticas de desenvolvimento (viticultura); Área plantada (vinhedo); Países do MERCOSUL.; Viticultura.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/535345

Extração de macro e micronutrientes pela forragem, grãos e palha de duas cultivares de aveia recomendadas pela EMBRAPA - Pecuária Sudeste.
Provedor de dados: 14
Autores: PRIMAVESI, A. C.; PRIMAVESI, O.; GODOY, R.
bitstream/CPPSE/11327/1/PROCIComT17ACP1996.00129.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Grãos; Forage plant.; Aveia; Microelemento; Planta Forrageira.; Oats; Trace elements.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/43367

Mission d´étude et de prospective au Brésil et en Colombie sur Rhammatocerus schistocercoides (Rehn, 1906): 29 septembre - 24 octobre 1996.
Provedor de dados: 14
Autores: LECOQ, M.
bitstream/item/108772/1/1374.pdf
Tipo: Recomendação Técnica (INFOTECA-E)
Palavras-chave: Acridologia; Rhammatocerus schistocercoides; Pesticidas; Missão; Brasil.; Gafanhoto; Meio Ambiente.; Colombia.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/17215

Avaliacao do desempenho da caramboleira (Averrhoa carambola L.) na regiao de Manaus, AM.
Provedor de dados: 14
Autores: SILVA, S. E. L. da; SOUZA, A. das G. C. de.
A carambola (Averrhoa carambola) foi introduzida na colecao de fruteiras nativas e exoticas da Amazonia do Centro de Pesquisa Florestal da Amazonia Ocidental (CPAA), em 1991, com o objetivo de avaliar seu comportamento nas condicoes edafoclimaticas de Manaus, AM. A producao foi de 260 + ou - 23 frutos. O desenvolvimento medio das plantas, quatro apos o plantio, foi de 4,29 m de altura, 9,04 cm de diametro de caule e 3,12 cm de copa. A frutificacao, em 1995, ocorreu no mes de novembro, variando de 231 a 567 frutos por planta entre as carambolas de safra doce, e de 66 a 264 frutos entre as acidas. O peso medio de fruto foi de 57,75 g e os diametros transversal e longitudinal, de 4,64 cm e 8.03 cm, respectivamente.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Desempenho; Brasil; Amazonas; Manaus.; Averrhoa Carambola; Carambola; Performance.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665434

Desempenho de linhagens e cultivares de arroz de várzea úmida no Estado do Amapá no ano agrícola 1995/96.
Provedor de dados: 14
Autores: ATROCH, A. L.
A avaliação de genotipos de arroz para cultivo nas várzeas sem irrigação controlada (várzea úmida), visando selecionar cultivares de arroz para essas condições e de fundamental importância. Nesse subprojeto foram conduzidos dois ensaios comparativos de arroz de várzea úmida no ano agrícola 1995/96, sendo um ensaio preliminar e um ensaio avançado.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Várzea úmida; Brasil; Amapá; Progenyes.; Arroz; Linhagem; Oryza Sativa; Performance; Variedade.; Brazil; Rice; Varieties; Yields.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341847

Embutidos, frios e defumados.
Provedor de dados: 14
Autores: ROCCO, S. C.
Introducao; Carnes; Equipamentos e utensilios; Higiene; Condimentos; Aditivos e processo de cura; Tripas e outros envoltorios; Metodos de fabricacao de embutidos; Formulacoes; Cozimento; Defumacao; Modelos de defumadores; Metodos de fabricacao de defumadores frios; Lombo, bacon, copa e panceta; Presunto tipo tender; Presunto cozido em forma; Apresuntado; Pastrani, bresaola, cupim, lagarto e picanha; Frango e peixe; Viabilidade economica; Advertencia.
Tipo: Col Criar Plantar ABC 500P/500R Saber (INFOTECA-E)
Palavras-chave: Alimento; Tecnologia; Carne; Industrialização; Defumação; Carne defumada.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/114148

Embrapa CNPSo 20 anos: busca de soluções, compromisso com o homem.
Provedor de dados: 14
Autores: MOREIRA, G. S.; ZAMBUDIO, S.
Histórico; Resultados: Preservando a natureza; Independência tecnológica; Soja na alimentação; Intercambio de informações; Estrutura.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Soja; Pesquisa agrícola; Soybeans; Agricultural research.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445930

CAEV.
Provedor de dados: 14
Autores: PINHEIRO, R. R.; ALVES, F. S. F.
O objetivo deste trabalho e responder os principais questionamentos levantados, objetivando esclarecer aos diversos segmentos de publico interessado sobre as causas, sintomas e metodos de controle mais adequados.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Artrite Encefalite Caprina; CAEV; Caprine arthritis encephalit virus.; Caprino; Doença animal; Artrite; Vírus; Goats; Animal diseases; Lentivirus; Arthritis.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514307

Comportamento ortodoxo em sementes de sorva, Couma utilis.
Provedor de dados: 14
Autores: CARVALHO, J. E. U. de; FIGUEIREDO, F. J. C.; MULLER, C. H.
bitstream/item/32760/1/CPATU-BP168.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Seed.; Couma Utilis; Germinação; Semente; Sorva.; Sorbus; Germination.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374526

A pecuária na fronteira agrícola da Amazônia: o caso do município de Uruará, PA, na região da Transamazônica.
Provedor de dados: 14
Autores: VEIGA, J. B. da; TOURRAND, J.-F.; QUANZ, D.
A região da Transamazônica e o município de Uruará metodologia. O sistema de produção agrícola de Uruará. O produtor. Tamanho dos estabelecimentos, mão-de-obra e gestão. Estrutura do sistema de produção. A pecuária. O processo de pecuarização. A pastagem. O Rebanho. Tendencia da pecuária em Uruará. Relações da pecuária no sistema de produção. A tipologia do sistema de produção de Uruará.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Transamazônica; Uruará; Pará; Brasil; Livestock rearing.; Agricultura Familiar; Pecuária; Sistema de Produção.; Amazonia; Animal production; Small farms.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/387578

Programa de avaliacao de touros jovens: manual de instrucao e operacao.
Provedor de dados: 14
Autores: SILVA, L. O. C. da.
bitstream/item/135660/1/DOC-61.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bovino de corte; Melhoramento genetico; Zebuino; Avaliacao; Bull; Steer; Evaluation.; Touro.; Animal breeding; Beef cattle; Zebu.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/320845

Recomendacoes da Comissao Centro Brasileira de Pesquisa de Trigo para os anos de 1995/96.
Provedor de dados: 14
Autores: REUNIAO DA COMISSAO CENTRO BRASILEIRA DE PESQUISA DE TRIGO, 8., 1994, Planaltina, DF.
bitstream/item/101499/1/doc-60.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Regiao central; Brasil; Minas Gerais; Distrito Federal; Goias; Bahia; Mato Grosso; Controle; Wheats; Central region; Cultural methods; Management; Plant diseases.; Adubação; Calagem; Conservação do Solo; Cerrado; Doença de Planta; Época de Plantio; Irrigação; Manejo do Solo; Manejo; Pesquisa; Praga de Planta; Pratica Cultural; Triticum Aestivum; Variedade.; Trigo; Fertilizer application; Disease control; Brazil; Liming; Irrigation; Pest control; Research; Soil management; Sowing date; Varieties.; Soil conservation.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/551817

Estudo dos materiais calcários usados como corretivos da acidez do solo em Mato Grosso do Sul.
Provedor de dados: 14
Autores: MAEDA, S.; KURIHARA, C. H.; HERNANI, L. C.; SILVA, W. M.
Material e metodos; Resultados e discussoes.
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Brasil; Mato Grosso do Sul.; Acidez; Análise; Calcário; Corretivo; Cerrado; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/240703

Avaliacao do desempenho do araçá-boi (Eugenia stipitata McVaugh) na regiao de Manaus, AM.
Provedor de dados: 14
Autores: SILVA, S. E. L. da; SOUZA, A. das G. C. de.
Foi avaliado o desempenho do araca-boi (Eugenia stipitata) nas condicoes edafoclimaticas de Manaus, com dez plantas em linhas em Latossolo Amarelo muito argiloso. As plantas encontram-se com altura media de 2,62m de altura, com diametro de caule de 4,17cm, e, de copa, 1,81cm. A producao inicial, em 1993, com numero medio de frutos por planta inferior a 20. Na safra de 1994, a producao media por planta foi de 51 frutos, com peso medio de fruto de 234g. Em 1995, a producao media de frutos foi de 142, com peso variando de 196g a 300g, e percentagem de polpa de 92% a 70%. O diametro medio transversal foi de 7,4cm e o longitudinal de 5,11cm. oBrix variou de 4,0 a 5,5.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Araca-boi; Desempenho; Brasil; Amazonas; Manaus; Yield.; Eugenia Stipitata.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/665438

Minador das folhas dos citros Phyllocnistis citrella stainton, uma nova praga dos citros no Piaui.
Provedor de dados: 14
Autores: SILVA, P. H. S. da; SILVA, R. B. Q. da; MENESES, R. V. S. de; COSTA, R. L. da.
bitstream/item/96027/1/CT670001.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Brasil; Piaui.; Fruta Cítrica; Phyllocnistis Citrella; Praga.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/65381

Efeito de tres populacoes de percevejos sobre a produtividade, qualidade da semente e caracteristicas agronomicas de tres cultivares de soja.
Provedor de dados: 14
Autores: GAZZONI, D. L.
bitstream/item/116652/1/ID-2477-10001.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Inseto praga; Euschistus heros Fab; Piezodorus guildinii West.; Soja; Praga de planta; Percevejo; Inseto; Semente; Qualidade; Nezara Viridula.; Soybeans; Insect pests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/445877

Recomendação de cultivares de milho para so tabuleiros costeiros do nordeste.
Provedor de dados: 14
Autores: CARVALHO, H. W. L. de; SANTOS, M. X. dos; CARDOSO, M. J.; MONTEIRO, A. A. T.; TABOSA, J. N.; CARAVALHO, P. C. L. de; LEAL, M. de L. da S.
bitstream/item/69426/1/CPATC-COM.-TEC.-07-96.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Tabuleiro costeiro; Nordeste; Brasil; Cultivar.; Milho.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/359349

Doenças em bovinos confinados.
Provedor de dados: 14
Autores: BRANDINI, J. C.
Botulismo; Enterotoxemia. Dermatomicose. Dermatofilose. Timpanismo. Acidose láctica. Laminite. Intoxicação por uréia.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bovino de corte; Sanidade; Dermatofilose; Acidose láctea; Laminite; Diseases; Health; Bacterioses; Digestive; Disorders.; Botulismo; Casco; Confinamento; Dermatomicose; Enterotoxemia; Doença; Indigestão; Intoxicação; Uréia.; Timpanismo; Dermatophilus; Feedlots; Enterotoxins; Foot diseases; Beef cattle; Bloat; Botulism; Dermatomycoses; Hooves; Poisoning; Urea.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/316986

Correcao do solo e adubacao da cultura da soja.
Provedor de dados: 14
Autores: SOUSA, D. M. G. de; LOBATO, E.
In order to grow soybeans in cerrado soils it is necessary a previous, reduction of soil acidity and to build up the soil fertility. It is recommended the application of limestone to raise the soil pH up to the range between 5,5 and 6,0 or to increase base saturation up to 50%. The chemical constraints for root growth in the subsurface soil layers, such as the high aluminum saturation and/or calcium defficiency, can be overcome by the addition of gypsum. The recomended levels of gypsum vary from 700 kg/ha for sandy soils to 3200 kg/ha for heavy clayey soils. Fertilizers to supply phosphorus and potassium are recommended according to their availability in the soil determined by chemical analysis. Critical levels for those nutrients as well as the...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Micronutriente; Avaliacao; Aspecto economico; Phosphate fertilizers; Potash fertilizers; Micronutrient fertilizers; Evaluation; Economic situation.; Acidez do Solo; Adubação; Calagem; Cerrado; Fertilidade do Solo; Fertilizante Potássico; Fertilizante Nitrogenado; Fertilizante Fosfatado; Glycine Max; Microelemento; Oxisol; Soja.; Ferralsols; Acid soils; Fertilizer application; Liming; Nitrogen fertilizers; Soil fertility; Trace elements.; Soybeans.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/551684

Automacao e racionalizacao na micropropagacao industrial.
Provedor de dados: 14
Autores: FARI, M.; MELO, N. F. de.
Tendencias da mecanizacao na propagacao in vitro em larga escala, automacao das etapas dos metodos tradicionais de cultura de tecidos, novastecnologias baseadas na utilizacao de sistemas de propagacao em meio liquido, desenvolvimento de sistemas de cultivo in vitro alternativos, sistema CLONER: uma nova iniciativa de racionalizacao da bancada de micropropagacao.
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Propagacao in vitro; In vitro propagation; Biotecnologia; Cultura de Tecido; Meristema; Micropropagação; Biotechnology; Micropropagation; Tissue culture.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/131977

Avanços tecnológicos na fruticultura tropical.
Provedor de dados: 14
Autores: REINHARDT, D. H. R. C.
A atividade frutícola está em plena expansão no Brasil e, principalmente, na região Nordeste, e já representa cerca de 25% do valor da produção agrícola nacional. É o segmento agrícola mais exigente e mais dependente de tecnologia para auferir sucesso econômico na atividade. A demanda por tecnologia tem aumentado consideravelmente. Diante disso, as atividades de geração, adaptação e transferência de conhecimentos e tecnologias tem sido intensificadas, sobretudo ao nível do Sistema Nacional de Pesquisa Agropecuária (SNPA) liderado pela Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA). Na última década tem havido avanços tecnológicos importantes para o cultivo de fruteiras tropicais. Novas tecnologias, de interesse de produtores de todos os níveis,...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Fruteira tropical; Citros; Desenvolvimento tecnológico.; Abacaxi; Acerola; Banana; Maracujá.; Mamão; Manga.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/638042

Crescimento e desenvolvimento da pupunheira (Bactris gasipaes H.B.K.) em áreas de sistemas agroflorestais.
Provedor de dados: 14
Autores: MORAES, C. R. de A.; CRUZ, L. A. de A.
Plantas de pupunheira (Bactris gasipaes H.B.K.) foram estabelecidas em sistemas agroflorestais e submetidas a dois níveis de adubação associados ou não com fungos micorrízicos vesicular-arbusculares.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Bactris Gasipaes; Floresta Tropical Úmida; Pupunha; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671748

Arroz na América Latina: perspectivas para o incremento da produção e do potencial produtivo.
Provedor de dados: 14
Autores: CONFERÊNCIA INTERNACIONAL DE ARROZ PARA A AMÉRICA LATINA E O CARIBE, 9.; REUNIÃO NACIONAL DE PESQUISA DE ARROZ, 5., 1994, Goiânia.
Volume 1: Conferências e comentários. Volume 2: Pôsteres e grupos de trabalho.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: RENAPA; Arroz; Oryza sativa; Pesquisa.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/203249

Competição de linhagens de arroz de sequeiro em Ouro Preto do Oeste - RO.
Provedor de dados: 14
Autores: AZEVEDO, D. M. P. de; MORAIS, O. P. de.
Procurou-se selecionar materiais com caracteristicas agronomicas superiores as cultivares atualmemte recomendadas e com melhor qualidade de grao. Resultados obtidos revelam alguns materiais altamente promissores, destacando-se linhagens CNA 6843-1 e CNA 8096 por suas caracteristicas agronomicas, notadamente quanto a qualidade de graos, resistencia as principais doencas, alem do alto potencial genetico para producao de graos.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Embrapa Rondônia; Ouro Preto do Oeste (RO); Rondônia; Amazônia Ocidental; Western Amazon.; Arroz Sequeiro; Oryza Sativa; Rendimento; Campo Experimental.; Características Agronômicas; Condição Ambiental; Aclimatação; Comportamento de Variedade; Competição de Variedade; Rice; Dryland farming; Crop yield.; Plant competition; Acclimation; Environmental factors; Agronomic traits; Variety trials.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699889

Caracterização de sistemas de uso da terra e propostas de ação para o desenvolvimento dos sistemas agroflorestais no município de Áurea, RS.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Florestas (Colombo, PR).
bitstream/item/17047/1/doc29.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Componente florestal.; Manejo; Integração; Agrossilvicultura; Diagnostico; Planejamento; Uso da Terra.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290704

Métodos de desmama para aumento da eficiência reprodutiva de bovinos de corte.
Provedor de dados: 14
Autores: VALLE, E. R. do; ENCARNAÇÃO, R. de O.; THIAGO, L. R. L. de S.
O longo período de anestro pós-parto, observado em vacas, em sistema de criação extensiva, e um dos principais fatores responsáveis pelo baixo desempenho reprodutivo do rebanho de bovinos de corte. Tem sido demonstrado que a deficiência nutricional e a intensidade da amamentação retardam significativamente a manifestação do primeiro cio pós-parto. Portanto, o objetivo deste trabalho foi o de discutir o efeito de diferentes praticas de desmama no desempenho reprodutivo de vacas de corte e no desenvolvimento de seus bezerros.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Bovino de corte; Temporaria; Amamentação; Controle; Management; Control.; Bezerro; Eficiência Reprodutiva; Desmama Precoce; Manejo; Peso; Vaca.; Cows; Calves; Beef cattle; Reproductive performance; Weaning.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/321590

Produção e valorização do leite e dos derivados no Município de Nossa Senhora da Glória - Sergipe: sintese dos resultados.
Provedor de dados: 14
Autores: EMBRAPA. Centro de Pesquisa Agropecuária do Trópico Semi-Árido.
Condições de emergência da produção leiteirta no semiárido sergipano; Diversidade dos pequenos produtores; Práticas estratégias de produção dos pquenos produtores de leite; Mercado e circuitos de comercialização do leite e dos derivados.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Pequeno produtor de leite; Sergipe; Milk production chain; Small farmer.; Leite; Cadeia Produtiva; Pequeno Produtor; Beneficiamento.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/137227

Adubação nitrogenada no sistema plantio direto.
Provedor de dados: 14
Autores: WIETHÖLTER, S.
bitstream/item/121328/1/FL-07108.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Fertilidade; Nitrogênio; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/850068

Resultados de pesquisa de soja - 1990/91.
Provedor de dados: 14
Autores: EMBRAPA. Centro Nacional de Pesquisa de Soja (Londrina, PR).
v.1 - Manejo da cultura; Melhoramento genetico; Sementes; Fertilidade e biologia do solo; v.2 - Manejo do solo; Entomologia; Plantas daninhas; Fitopatologia; Coordenacao do Programa Nacional de Pesquisa de Soja; Difusao de tecnologia; Biometria; Assessoria de imprensa.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Planta daninha; Fitopatologia; Brasil; Parana; Soybean; Management; Seed; Weed; Phytopathology.; Biologia do Solo; Entomologia; Difusão de Tecnologia; Fertilidade do Solo; Manejo; Melhoramento; Pesquisa; Semente; Soja.; Brazil; Breeding; Entomology; Soil biology; Technology transfer.; Soil fertility.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/449576

Estudo dos solos do município de Capão do Leão.
Provedor de dados: 14
Autores: CUNHA, N. G. da; SILVEIRA, R. J. da C.
bitstream/item/41388/1/Capao-do-leao.pdf;  bitstream/item/41389/1/mapa-geomorfologia.pdf;  bitstream/item/41390/1/mapa-solos.pdf;  bitstream/item/41391/1/mapa-uso-da-terra.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Caracterização; Rio Grande do Sul; EMBRAPA; Centro de Pesquisa Agropecuária de Clima Temperado(Pelotas; RS).; Conservação; Geomorfologia; Solo.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/739871

Como plantar citros: laranja, tangerina, limão.
Provedor de dados: 14
Autores: MELEM JUNIOR, N. J.; SEGOVIA, J. F. O.
Preparo da covas; Época de plantio; Distância entre as plantas; Adubação de covas; Transplante; Adubação de cobertura.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Citros; Cultivo; Cultivation.; Plantio.; Citrus.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/341145

A leprose dos citros em Rondônia: caracterização e recomendações de manejo.
Provedor de dados: 14
Autores: TEIXEIRA, C. A. D.; RODRIGUES, V. G. S.; AVILES, D. P.; FERREIRA, M. das G.
Apresenta informacoes gerais sobre a doenca, seu acaro transmissor e seu controle. O objetivo e colocar a disposicao dos extensionistas informacoes que permitam o menejo da praga e, consequentemente, da doenca.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Red and black flat mite; Rondônia; Amazônia Ocidental; Western Amazon.; Doença de Planta; Leprose Cítrica; Ácaro; Manejo; Brevipalpus Phoenicis; Transferência de Tecnologia.; Controle Químico; Citrus; Plant diseases and disorders; Acarus; Chemical control; Technology transfer.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/699894

Appui au developpement de làgriculture familiale dans le Nordeste semi-áride.
Provedor de dados: 14
Autores: SABOURIN, E.; TONNEAU, J. P.; CARON, P.
Reseaux de proximité et diffusion des innovations techniques: le cas des communautés paysannes de Massaroca (Bahia-Brasil). Experimentação e validação de tecnologias em meio real: alguns elementos a partir da experiência de Massaroca (Juazeiro-BA).
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Desenvolvimento territorial; Comunidade de Massaroca; Nordeste; Bahia; Agricultura familiar; Pequeno Produtor; Transferência de Tecnologia; Farming systems; Family farms.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/888526

Analysis of growth form types and floristic composition due to past disturbance and plantation management in the SHIFT experimental area.
Provedor de dados: 14
Autores: PREISINGER, H.; SIQUEIRA, M. do S. G.; COELHO, L. F.
Em terra firme próximo a Manaus, Amazonas, está sendo executado um experimento com sistemas de policultivo de plantas úteis, estabelecido em um plantio de seringueira abandonado. São testadas diferentes combinações de plantas úteis em 90 parcelas e 5 blocos.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Floresta Tropical Úmida; Agroforestry; Tropical rain forests.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671735

Recherche de marqueurs génétiques et évaluation de la variabilité génétique dans le cadre d'un programme de sélection de l'huître plate Ostrea edulis au parasite Bonamia ostrea
Provedor de dados: 5
Autores: Launey, Sophie.
Dans le cadre du projet de relance de l'huître plate en France, projet mené par l'IFREMER et soutenu par les régions Bretagne et Poitou-Charentes, un programme de sélection pour la recherche de résistance au Bonamia ostreae, protozoaire parasite ayant entraîné une diminution importante des stocks cultivés, a été engagé à partir de 1985. Deux populations ont ainsi été sélectionnées et présentent maintenant des signes de résistance (ou de tolérance) accrue par rapport aux témoins du milieu naturel. Dans le cadre de ce programme, l'identification de marqueurs moléculaires a été initiée à partir d'octobre 1993 (Naciri et al, 1995). Mon sujet de thèse s'inscrit dans cette continuité. Mon travail s'articule en 2 parties: -  Dans un premier temps, la recherche de...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00411/52206/52930.pdf

Organisation, structure et dynamique de peuplements macrobenthiques d' une table conchylicole de l'étang de Thau (Hérault, France)
Provedor de dados: 5
Autores: Lamy, Nathalie.
L'étude des peuplements macrobenthiques d'une table d'élevage conchylicole de l'étang de Thau (Méditerranée) s'inscrit dans le cadre du programme de recherches OXYTHAU-PNOC. Elle concerne les peuplements de substrat meuble, situés sous et au voisinage de la table, mais également ceux de substrat dur, associés aux mollusques d'élevage et à leur supports. Les substrats meubles ont été échantillonnés en février 1991 et en mai 1992. Les peuplements de substrat dur ont été étudiés par colonisation de surfaces collectrices vierges et suivis sur une période de 19 mois, d'avril 1992 à novembre 1993. La table d'élevage accueille des peuplements riches (jusqu'à 146 espèces sur les substrats durs) et assez diversifiés (l'indice de Shannon est de l'ordre de 2 à 4 bits...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00073/18447/15987.pdf

Test préliminaires de toxicité des effluents de la station d'épuration de La Tremblade sur l'huître creuse (Crassostrea gigas)
Provedor de dados: 5
Autores: Lagarde, Franck.
La conchyliculture est une activité importante dans le bassin de Marennes-Oléron. L'aquaculture extensive de l'huitre japonaise (Crassostrea gigas ) représente, avec 130 000 tonnes par an, la première ressource marine nationale (Héral, 1986) dont 40 % se fait dans ce bassin. Il est donc important de connaître et d'étudier l'ensemble des phénomènes du bassin.  Depuis 1970, on observe un ralentissement de la croissance des huîtres sur le bassin et une baisse de productivité sur certains bancs ostréicoles exploités tels que Ronce les Bains (25 % de mortalité en Juillet 1996 ) et le banc de Perquis (25 % de mortalité en Juillet 1996) (REMORA 1995). Depuis 1988, les élevages ostréicoles de Charente-Maritime subissent en périodes printanières et estivales, des...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00305/41572/40780.pdf

Influence du positionnement des filières ostréicoles et mytilicoles dans le Pertuis Breton : Résultats préliminaires
Provedor de dados: 5
Autores: Robert, Stephane; Fillon, Alain.
La mise en place d'une nouvelle zone de filière ostréicole fait actuellement l'objet d'une demande de la Section Régionale Ré Centre-Ouest. L'objectif du projet est de transférer une partie de l'ostréiculture d'estran sur filières, le tout à biomasse constante afin d'obtenir un gain de productivité. Deux sites ont été proposés. La proximité des zones d'élevage (mytilicole et ostréicole) en filières laisse supposer une compétition possible de l'exploitation des ressources alimentaires dans l'ensemble géographique du Pertuis Breton. Par conséquent, le choix du site d'élevage est particulièrement important et doit être sélectionné de façon à minimiser l'impact sur les cultures déjà existantes. Pour cela, l'influence du positionnement des filières a été étudié...
Tipo: Text
Palavras-chave: Filière ostréicole; Modélisation; Courantologie; Bathymétrie; Pertuis Breton; Pertuis Antioche.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00149/26026/24127.pdf

Etude de la variabilité de croissance d'une population d'huîtres creuses Crassostrea gigas. Bases génétiques
Provedor de dados: 5
Autores: Morand, Bérénice.
45
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00413/52431/53215.pdf

Feeding behaviour of Paracentrotus lividus in the presence of Caulerpa taxifolia introduced in the Mediterranean Sea
Provedor de dados: 5
Autores: Lemee, R; Boudouresque, Cf; Gobert, J; Malestroit, Pascale; Mari, X; Meinesz, A; Menager, V; Ruitton, S.
Experiments in aquaria have shown that the feeding behaviour of the sea urchin Paracentrotus lividus in presence of the green alga Caulerpa taxifolia varies during the year. In summer, the alga is strongly avoided and is not consumed. in winter and spring, although the alga is only moderately appreciated, its consumption is significant, but it is hardly or not at all absorbed. These results are confirmed by content analysis of the digestive tract of P. lividus sampled in situ in an area colonized by C. taxifolia. The sea urchins' feeding behaviour is linked to the presence of toxic and repellent secondary metabolites of C. taxifolia, caulerpenyne in particular.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20483/18153.pdf

Are planktonic larvae of marine benthic invertebrates too scarce to compete within species?
Provedor de dados: 5
Autores: Strathmann, Rr.
Several models for the evolution of complex life histories have assumed a carrying capacity for both larval and postlarval stages. In addition, the densities of larvae in laboratory experiments are often so high that there is competition for food. Published values for maximal clearance rates and estimated abundances of larvae suggest that these assumptions and experimental conditions are unrealistic for most marine larvae. For most ciliated larvae, maximum clearance rates are at most a few mi of water daily, and their estimated larval concentrations are at most one to several larvae per liter. Therefore these larvae appear to be too scarce for their grazing to affect their food supply. Larvae of most species are also scarce relative to co-occurring...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20495/18164.pdf

HOT 96 News
Provedor de dados: 5
Autores: Gaill, Francoise; Felbeck, Horst; Desbruyeres, Daniel; Lallier, Francois; Toulmond, A.; Alayse, Anne-marie; Briand, Patrick; Brulport, Jean-pierre; Caprais, Jean-claude; Chevaldonne, P.; Coail, Jean-yves; Cosson, R.; Crassous, Philippe; Delachambre, J.; Durif, C.; Echardour, L.; Herve, G.; Hourdez, Stephane; Jollivet, D.; Kerdoncuff, Jacques; Khripounoff, Alexis; Lechaire, J.p.; Pruski, Audrey; Ravaux, Juliette; Sarradin, Pierre-marie; Shillito, Bruce; Toullec, J.y.; Arndt, C.; Fisher, C.; Lutz, Richard; Childress, J.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00179/29003/27431.pdf

Late quaternary paleoceanography of the French Guiana continental shelf: Clay-mineral evidence
Provedor de dados: 5
Autores: Pujos, M; Latouche, C; Maillet, N.
Marine muds deposited on the French Guiana coast mostly originate in the Amazon. Recent sediments are composed of (a) illite (33 %) and chlorite (13 %) of Andean mountain origin; and (b) kaolinite (28 %) and smectite (26 %), principally from the Amazonian lowlands but also from the Guiana Shield. In the coastal mud prism, high-resolution seismic profiles, together with sedimentological, micropaleontological and soil engineering studies, supplemented by C-14 dates, permitted a stratigraphic interpretation of eight cores. Three episodes have been determined on the basis of clay-mineral variations related to Amazonian lowland, Andean and Guiana shield sources. The older episodes 3 (3000-1700 y BP) and 2 (1700-1000 y BP) are predominantly characterized by...
Tipo: Text
Palavras-chave: Late quaternary; French Guiana; Shelf; Clay minerals; ENSO.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20506/18175.pdf

Echinoderm egg and larval quality as a function of adult nutritional state
Provedor de dados: 5
Autores: George, Sb.
Differences in egg and larval quality for some sea urchins and seastars were investigated in the field acid in the laboratory. In the field, sea urchins and seastars found at sites with an abundant supply of food were larger, and they produced large numbers of large, high quality eggs. For some female seastars, nutritional history determined the response to variation in food supply in the laboratory. While an increase in food ration did not affect the size of eggs produced by females from the favorable site, an increase in food ration led to an increase in egg size for those from the less favorable site. For all the echinoderms examined, egg numbers decreased when conditions became unfavorable. Larvae from females living in favorable environments grew and...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20488/18158.pdf

Bilan des mortalités estivales de naissains d'huîtres Normandie, 1995
Provedor de dados: 5
Autores: Kopp, Joel; Joly, Jean-pierre.
Des mortalités estivales de naissain avaient déjà été signalées en 1994, particulièrement dans la partie nord de la côte Ouest du Cotentin (de Pirou à Denneville), avec des pertes observées d'environ 30 %. L'examen histologique de deux échantillons provenant de lots très touchés (d'origine naturelle ou produits en écloserie) avaient montré la présence d'herpès-virus, sans que l'on puisse établir de relation entre ces mortalités et cette infestation. Ces mortalités se sont reproduites durant l'été 1995, mais ont touché un beaucoup plus grand nombre de lots de naissain dans l'ensemble des trois bassins conchylicoles normands.
Tipo: Text
Palavras-chave: Huître creuse; Crassostrea gigas; Mortalités; Naissain; Normandie.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00072/18372/15944.pdf

Opération Grille Nationale de Qualité des huîtres creuses Crassostrea gigas
Provedor de dados: 5
Autores: Baud, Jean-pierre; Goyard, Emmanuel.
Le programme "Qualité de l'huître creuse", engagé par IFREMER en 1995, se propose d'apporter les outils nécessaires à l'élaboration d'une grille de qualité pour ce coquillage. Cette grille doit être objective et utilisable dans le cadre des études commerciales ou par le consommateur.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00081/19268/16863.pdf

Variations saisonnières de l'absorption de l'azote dans un système brassé peu profond (Manche occidentale)
Provedor de dados: 5
Autores: Maguer, Jf; Lecorre, P; Madec, C.
Seasonal changes in inorganic (NH4+; NO3-; NO2-) and organic (urea) nitrogen uptake were studied with N-15 as a tracer at a shallow station (depth: 22 m) in permanently well-mixed waters of the Western English Channel. Uptake of all the four nutrients was maximum in spring. Nitrate uptake accounted for a third of the total during spring phytoplankton growth, but decrease in summer. This decrease was related to the low ambient nitrate concentrations in early summer and to an inhibition of uptake by high concentrations in late summer. Ammonium was taken up in significant amounts from the beginning of spring (46 % of total uptake), increasing to 59 % in summer. In contrast with nitrate, ammonium concentrations during summer were sufficiently high to saturate...
Tipo: Text
Palavras-chave: Nitrogen; Uptake; Seasonal variations; Western English Channel.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20723/18360.pdf

Sediment O-2 demand, density and biomass of the benthos and phytopigments along the northwestern Adriatic coast: The extent of Po enrichment
Provedor de dados: 5
Autores: Tahey, Tm; Duineveld, Gca; Dewilde, Pawj; Berghuis, Em; Kok, A.
Sediment oxygen demand (SOD), silicate and ammonia fluxes, benthic macro- and meiofauna and phytopigments were measured during two cruises in March 1992 and August 1993 in the northwestern Adriatic Sea. Nine, mostly shallow (&lt; 50 m) stations, on a transect stretching from the Po mouth southwards, were visited. Two major issues were addressed: (1) To what extent does the river Po affect the benthic communities along this transect ? and (2) Is there any indication of an eutrophic situation as described in earlier studies ? The spatial patterns of SOD (range +/- 100 to 1450 mu mol O-2 . m(-2). h(-1)) and benthic fauna do not provide evidence for a simple latitudinal decrease in organic enrichment from the Po to the south. However, northern stations...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00093/20473/18143.pdf

Rapport annuel 1996
Provedor de dados: 5
1996 a été une année du Pacifique pour L'Atalante. Cela mérite d'être souligné, car cela suppose, de la part des équipages et des équipes scientifiques, un effort particulier. L'Atalante, qui a parcouru pendant ces douze mois plus de 56000 milles nautiques dans le Pacifique, a accompli des travaux remarquables, tant au point de vue scientifique qu'économique. La campagne PACANTARCTIC qui l'a conduite au cercle polaire Sud, et les campagnes ZONECO et ZEEPOLYF sont, à cet égard, significatives. [OCR NON CONTRÔLE]
Tipo: Text
Palavras-chave: Histoire Ifremer.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-4926.pdf

Novel observations underlying the fast growth of suspension-feeding shellfish in turbid environments: Mytilus edulis
Provedor de dados: 5
Autores: Hawkins, Ajs; Smith, Rfm; Bayne, Bl; Heral, Maurice.
For the tirst time for any benthic filter-feeder, this study documents each component process of nutrient acquisition through natural tidal variations of food availabillty. The organic content of seston available during both neap and spring tides in the bay of Marennes-Oléron. France, decreased from 28 to 8 % with mcreasing seston concentration from 10 to about 90 mg total particulate mass 1(1). Throughout this tidal variation, the blue mussel Mylilus edulis L. cleared more water of particles as seston availability increased. Rejection of fillered material as pseudofaeces prior to ingestion remained a constant fraction of about 0 .93 x the mass of filtered material, so that ingestion rate showed no signs of stabilising at even the highest food...
Tipo: Text
Palavras-chave: Seston composition; Tidal variation; Mussel; Mytilus edulis; Feeding behaviour; Selection efficiency; Absorption efficiency; Net energy balance.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00040/15080/12419.pdf

Etude expérimentale de la croissance des moules Mytilus edulis en Bretagne, de mars 1995 à janvier 1996
Provedor de dados: 5
Autores: Le Chanjour, Regis.
L'étude fait suite à celle menée entre avril 1994 et janvier 1995. Elle consiste à comparer la croissance d'échantillons de moules Mytilus edulis élevées dans des enceintes expérimentales appelées "pochons" (mini-poches plastiques), et disposées dans différents secteurs. Deux sites mytilicoles reconnus, Le Vivier-sur-Mer en Bretagne nord, et Pénestin en Bretagne sud, servent de témoins par rapport à la Rade de Brest qui est évaluée dans le cadre d'un programme mis en place par la Communauté Urbaine de Brest. Au terme des neuf mois d'étude (d'avril 1995 à janvier 1996), les taux de survie observés sur sites sont hétérogènes. Le Vivier-sur-Mer présente la meilleure survie (86%) à l'inverse de l'Elorn (80% de mortalité) ; la survie observée sur les autres...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00426/53781/54676.pdf

Economie et droit des ressources naturelles renouvelables de la mer - aspects théoriques et application à la zone côtière de la manche occidentale française - tome 1 - etude economique
Provedor de dados: 5
Autores: Bailly, Denis; Boncoeur, Jean; Guyader, Olivier; Le Floc'H, Pascal.
Le premier tome de ce rapport est consacré aux aspects économiques du problème de l'aménagement des usages des ressources et écosystèmes marins et littoraux. Il comporte deux parties : • La première offre une grille de lecture économique du problème étudié par le programme AMURE. • La seconde présente les résultats d'une enquête menée en mai-juin 1996 sur le littoral de la zone-atelier du programme.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00082/19300/16894.pdf

Acoustic observations in the Bay of Biscay: Schooling, vertical distribution, species assemblages and behaviour
Provedor de dados: 5
Autores: Masse, Jacques.
Eight acoustic surveys were carried our in the Bay of Biscay, during 1989-94, to study the distribution and abundance of anchovy (Engraulis encrasicolus, L.) in that area. Acoustic data were stored using the INES/MOVIES acquisition and processing system. Species-specific distribution patterns were confirmed through complementary sampling with a mid-water trawl. This paper summarises the combination of technical procedures used for acoustic assessments, and the results of acoustic surveys in the Bay of Biscay that pertain to the dynamics of this stock. Information is presented on the distribution and abundance of anchovy and co-occuring species, and on the movement patterns detected within the pelagic fish community, in relation to environmental conditions....
Tipo: Text
Palavras-chave: Acoustic; Anchovy; Engraulis encrasicolus; Schooling; Pelagic; Behaviour; Bay of Biscay.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00191/30265/28719.pdf

Contamination de l'environnement littoral par les rotavirus du groupe A
Provedor de dados: 5
Autores: Dubois, Eric; Le Guyader, Francoise; Kopecka, Helena; Miossec, Laurence; Pommepuy, Monique.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00116/22699/20439.pdf

Evidence for a sacrificial response to predation in the reproductive strategy of the comatulid crinoid Antedon bifida from the English Channel
Provedor de dados: 5
Autores: Nichols, D.
A population of the North-East Atlantic feather star Antedon bifida (Pennant) from a site in strong currents off South Devon, U.K., maintains a high level of maturity throughout its annual cycle, yet spawns only at a precise period of the year. Most individuals lose a proportion (mean: 17 %) of their pinnules from predation by the corkwing wrasse, Crenilabrus melops. An account of some aspects of predation of the crinoid by the fish is given. It is suggested that the crinoid maintains the maturity of its reproductive tissues at an unusually high level throughout the year so that the predator will take the pinnules, including the energy-rich gonads, in preference to the more vulnerable calyx. It is also suggested that a stress-response may be involved in...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20482/18152.pdf

Les mesures techniques en usage de part et d'autre du détroit du Pas-de-Calais. Leurs implications pour les flotilles de pêche artisanale française
Provedor de dados: 5
Autores: Delpech, Jean-paul.
Les pêcheurs artisans de la région Nord / Pas-de-Calais travaillent souvent dans des secteurs de pêche situés de part et d'autre du détroit du Pas-de-Calais. La limite administrative entre ces deux secteurs, mer du Nord et Manche orientale, sépare deux unités de gestion au sens réglementaire du terme, avec notamment des mesures techniques différentes concernant le maillage minimum autorisé pour la pêche au chalut de fond.  Ces régimes différents sont perçus comme une contrainte supplémentaire par ces pêcheurs qui, bien que bénéficiant de ce qu'il est convenu d'appeler la " dérogation merlan", rencontrent encore des difficultés d'exploitation.  Ayant fait part de leurs problèmes à la Direction des Pêches Maritimes et des Cultures Marines, celle-ci a de...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00074/18513/16054.pdf

Contamination du milieu marin par les micropolluants (résultats du RNO de 1979 à 1994). 2 : Le Bassin d'Arcachon
Provedor de dados: 5
Autores: Cantin, Christian.
After a quick presentation of the observation national network of the marine environment quality (RNO), the different metallic and organic Micropollutants measured in four stations of the Bay of Arcachon are described (origin, eventual toxicity). The results of the contamination measurements in the living tissue (oysters) are presented on graphics, based on a sample every three months from 1979 ta 1994, and means are compared to those obtained during the same period on the others points of the Manche-Atlantique coast.  
Tipo: Text
Palavras-chave: Micropolluants; Bassin d'Arcachon; Huîtres; Micropollutants; Bay of Arcachon; Oysters.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00422/53309/54147.pdf

Contribution à la connaissance de quelques mécanismes de reproduction et tentatives d'induction chimique de la tétraploïdie chez la crevette Penaeus indicus Milne Edwards (Crustacé, Décapode)
Provedor de dados: 5
Autores: Peeters, Luc.
In order to develop in vitro fertilization in the Indian white shrimp Penaeus indicus, the examination of interactions between both sexes revealed that: i) the impregnation of the female (i.e. spermatophore transfer) interacts directly with the Vitellogenin Inhibiting Hormone by stimulating the vitellogenesis and indirectly with the Molt Inhibiting Hormone by extending the molt cycle duration, ii) the spermatozoa undergo an increase of their cytoplasmic pH and intracellular calcium concentration when stored in the female thelycum. However, neither morphological nor ultrastructural modifications were found to be associated to the biochemical capacitation of the spermatozoa. The capacitation process evidenced here is compared to that occurring in Mammals....
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00440/55206/56676.pdf

Avis concernant le projet de révision du plan d'occupation des sols de la commune des Portes en Ré
Provedor de dados: 5
Autores: Thomas, Gerard.
Tipo: Text
Ano: 1996
URL: https://archimer.ifremer.fr/doc/00152/26375/24466.pdf

SHINKAI 6500 dives in the Manus Basin: New STARMER Japanese-French Program
Provedor de dados: 5
Autores: Auzende, Jean Marie; Urabe, T; Ruellan, E; Chabroux, D; Charlou, Jean-luc; Gena, K; Gamo, T; Henry, K; Matsubayashi, O; Matsumoto, T; Naka, J; Nagaya, Y; Okamura, K.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00070/18099/15647.pdf

Analyse des lots d'huîtres du groupe de travail "Pousse en Claires" : taux de glycogène
Provedor de dados: 5
Autores: Goulletquer, Philippe; Geairon, Philippe; Gras, Paul.
L'objet du présent rapport est de préciser les caractéristiques biochimiques (i.e., taux de glycogène) des lots d'huîtres ayant préalablement fait l'objet du travail du CREAA. Le sous produit de l'analyse consiste à vérifier si le critère 'taux de glycogène' est discriminant vis à vis de produits commercialisés de même taille et d'établir des relations entre les différents descripteurs des lots.
Tipo: Text
Palavras-chave: Biochimie; Glycogène; Huître creuse; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00109/22050/19692.pdf

Infection des hémocytes par le parasite Bonamia Ostreae: cytologie comparative in vitro
Provedor de dados: 5
Autores: Parthuisot, Nathalie.
L'IFREMER a initié depuis 1988, un programme de sélection de l'huître plate vis-àvis du parasite Bonamia ostreae. Ce programme de sélection repose sur la reproduction expérimentale de la bonamiose au laboratoire, ceci étant possible grâce à un protocole établi de purification du parasite. Ainsi, il a été possible de soumettre des géniteurs à une pression de sélection aboutissant à l'obtention de populations résistantes. Cependant, la sélection des animaux résistants se fait sans connaissance des processus impliqués dans ce phénomène. Cet état de fait renforce l'intérêt d'étudier les mécanismes cellulaires impliqués, plus particulièrement en comparant des animaux résistants et sensibles. Des travaux de ce type permettraient: · de comprendre ces phénomènes...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00408/51925/52552.pdf

Hydrodynamique sédimentaire sur le plateau insulaire de la Martinique
Provedor de dados: 5
Autores: Durand, Francoise.
Les formations superficielles du plateau insulaire de la Martinique ont été cartographiées à l'aide de données acquises par l'utilisation de techniques complémentaires telles que le sonar à balayage latéral, les photographies sous-marines et les prélèvements à la benne. Ces formations sont constituées par des éléments carbonatés provenant du démantèlement des formations coralliennes actuelles et fossiles et d'éléments volcaniques transportés jusqu'à la mer par voies aérienne et fluviatile. Parmi les structures sédimentaires repérées dans les sables grossiers à très grossiers et dans les graviers, les plus significatives sont des mégarides symétriques, situées entre 20 et 60 m de profondeur. Elles présentent une hauteur comprise entre 0,20 et 0,60 m et une...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00105/21587/19167.pdf

Développement et prolifération d'une population d'annélides tubicoles Lanice conchilega associée à la conchyliculture en Baie des Veys (Baie de Seine Occidentale). Ecophysiologie, dynamique de population, cartographie
Provedor de dados: 5
Autores: Ropert, Michel.
Depuis 1986, une population de l'annélide tubicole Lanice conchilega (Polychète) se développe et prolifère sur le site conchylicole de Grandcamp-Maisy (Baie des Veys), en association avec une accélération des processus de sédimentation liés à la présence des structures tabulaires ostréicoles. La capacité de cet annélide à développer un mode alimentaire suspensivore en fait un compétiteur trophique potentiel de l'huître creuse Crassostrea gigas. L'objectif de ce travail est de réaliser un premier bilan global de l'impact de cette population de Lanice sur l'activité conchylicole du secteur. Dans un premier temps, nous avons pu mettre en évidence et quantifier expérimentalement son activité suspensivore : il est en effet susceptible de retenir des particules...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00450/56173/57720.pdf

Application of a digital pattern recognition system to Dinophysis acuminata and D-sacculus complexes
Provedor de dados: 5
Autores: Truquet, Philippe; Lassus, Patrick; Honsell, Giorgio; Le Dean, Loic.
An image discrimination technique was developed to improve specific identification of some toxic Dinophysis cells (marine dinoflagellates involved in diarrhoeic shellfish poisoning), especially the ''acuminata'' and ''sacculus'' groups, which can be present at different ratios in natural sea-water samples collected during toxic episodes. This work was performed with image analysis software SAMBA (TITN Alcatel) using preserved cells directly observed through an inverted microscope and recorded with a video camera before further processing. All morphometric parameters used for discrimination of 7 different species or morphotypes of Dinophysis were tested with discriminant analysis. This study indicates that Dinophysis sp. and D. pavillardi seem well...
Tipo: Text
Palavras-chave: Dinophysis sp.; Analyse d'image; Taxonomie; Phytoplancton; Dinophysis sp; Image analysis; Taxonomy; Phytoplankton.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00188/29890/28337.pdf

Climatologie océanique par satellite: un succès d'ERS
Provedor de dados: 5
Autores: Olagnon, Michel; Lasnier, P; Paci, G.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00282/39337/43307.pdf

Economie et droit des ressources naturelles renouvelables de la mer - Aspect théorique et application à la zone côtière de la Manche occidentale française - Tome II - Etude juridique
Provedor de dados: 5
Autores: Cudennec, Annie; Curtil, Olivier; Labrot, Véronique; Prat, Jean-luc.
Cette étude constitue une première approche juridique de la problématique AMURE. Elle est centrée sur l'accès aux ressources halieutiques. Compte tenu de l'ambition à la fois pluridisciplinaire, théorique et appliquée du Programme AMURE les contributions qui la composent sont nécessairement diversifiées. Certaines ont pour vocation première de rappeler les données de base des problèmes juridiques relatifs à l'accès aux ressources halieutiques et de permettre ainsi d'engager un dialogue interdisciplinaire. D'autres contributions, plus originales, dégagent les aspects conceptuels du sujet ou apportent un éclairage inédit sur la formation du droit français des pêches. L'ensemble de ces contributions est à lire en gardant à l'esprit que le Programme AMURE doit...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00081/19207/16802.pdf

Contrôle des performances des souches d'huîtres plates résistantes au protozoaire Bonamia ostreae 2ème année
Provedor de dados: 5
Autores: Haure, Joel; Nourry, Max; Le Bayon, Nicolas; Baud, Jean-pierre.
Un contrôle des performances de souches d'huîtres plates, Ostrea edulis, issues d'un plan de sélection a été réalisé d'avril à novembre 1995 en élevage intensif. Un débit d'eau de mer fixé à 4l/heure/huître et un apport nutritif (Skeletonema costatum) de 3.10(9) cellules/jour/huître semblent constituer un bon compromis pour satisfaire les exigences physiologiques de l'huître plate. Les lots d'huîtres résistantes ou tolérantes à Bonamia ostreae présentent de meilleures performances de croissance que les lots témoins. Une hiérarchisation de la croissance validée sur le plan statistique a été mise en évidence comme suit : R6 (F0*F1) &gt; R7 (F1*F2) &gt; Q (lot témoin). La plupart des huîtres ont été infestées par le ver Polydora, malgré le traitement à la...
Tipo: Text
Palavras-chave: Génétique quantitative; Ostrea edulis; Bonamia ostreae; Souche résistante.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00048/15875/13297.pdf

Ecophysiologie de Mytilus edulis L. dans le bassin de Marennes-Oléron : alimentation et bilan d'énergie
Provedor de dados: 5
Autores: Boromthanarat, Wilaiwan.
Annual variation in the physiology of 40 mm Mytilus edulis L. is studied under two conditions close to the field, an estuarine one which is rich in mineraI seston, another one stocked in a pond for one week and poor ln suspension as it is found during neap tide or in the oysters ponds. The seasonal changes in food consumption are calculated from the number of particles, quantity of chlorophyll and phaeopigment, quantity of total seston and mineraI biodeposition. The filtration and its changes are the same in both water conditions. They exhibited a maximum during late winter and spring (between 17.95 and 9.34 1.h-1 .gDW-1) and a  minimum during the rest of the year (between 5.89 and 1.65 1. h-1. gDW-1). The quantity of particles retained and the quantity of...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00440/55209/56678.pdf

A first approach of aquaculture development in the Jiaozhou Bay (P. R. China)
Provedor de dados: 5
Autores: Collaudin, Benoît.
The Jiaozhou bay (People's Republic of China, Shandong province, Qingdao county) is a 400 km2 semi-closed bay around which socio-economic activities have developed. More than 6.7 million of inhabitants live  and work around this bay. ln 1995 the shrimp production (Penaeus orientalis) raised to 300-400 Metric Ton, more than 77,000 MT of clams (Ruditapes philippinarum) more than 12,000 MT (Metric Ton) of oysters (Ostrea plicatula), more than 14,000 MT of mussels (Mytilus edulis) and more than 25,000 MT of scallops (Chlamys farreri and Argopecten irradians) have been harvested. This paper present an overview of the Jiaozhou bay (rivers running into the bay, factories .settled on the coast line, the population, the means of transport ... ), the different kinds...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00449/56011/57526.pdf

Etude comparative des coefficients de conversion utilisés pour estimer le poids vif des captures des flottilles de pêche de l'Union
Provedor de dados: 5
Autores: Caillart, Benoït; Borel, Gidas; Merrien, Claude.
Conversion coefficients are the factors used in estimating the live-weight equivalent of fish caught. Live weight is the only measure used in catch statistics, being the basis in particular for monitoring the drawdown of quotas and estimates of the state of stocks. The study looked first at how figures on catches in live-weight equivalent are gathered, validated and calculated in three Member States, namely Denmark, France and the United Kingdom. These three countries employ related methods involving the database storage of sales data together with details of the presentation of the fish. The information in logbooks is mainly used as a cross-check on the sales data. If sales data are not available, logbook details are entered raw in the catch databases....
Tipo: Text
Palavras-chave: European Union; Fleet of fishing; State of stocks; Quota; Statistic; Fish caught; Conversion coeffcient; Union européenne; Flotille de pêche; Etat des stocks; Quota; Statistique; Capture; Coeffcient de conversion.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-1640.pdf

Biotic and abiotic interactions controlling starfish outbreaks in the Bay of Douarnenez, Brittany, France
Provedor de dados: 5
Autores: Guillou, M.
Massive outbreaks of starfish (Asteridae) occur periodically in European coastal waters. The origins of these irregular population increases are poorly understood. In the subtidal zone of the Bay of Douamenez, Brittany, France, the occurrence of several species of Asteridae and the polymodal size distribution differentiate these aggregations from the single year-class and monospecific intertidal infestations. An echinoderm population survey from 1982 to 1988 showed an increase in carnivorous starfish (principally Asterias rubens and Marthasterias glacialis) from 1981 to 1984, when the population reached carrying capacity. At this time, a trophic imbalance between starfish and bivalves was observed. From 1985 onward, the total echinoderm biomass decreased...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20752/18379.pdf

Performance of triploid Pacific oysters Crassostrea gigas (Thunberg) reared in high carrying capacity ecosystem : survival, growth and proximate biochemical composition
Provedor de dados: 5
Autores: Goulletquer, Philippe; Joly, Jean-pierre; Gerard, Andre; Le Gagneur, Eric; Moriceau, Jacques; Peignon, Jean-marie; Heurtebise, Serge; Phelipot, Pascal.
Triploid oysters Crassllstrea gigas were: produced in 1990 by treating fertilized eggs with cytochalasin B (CS). Triploids, treated diploids, and controls were deployed early 1991 in a high carrying capacity ecosystem on the Eastern Coast of Normandy (France). A monthly monitoring in 1992 showed that triploids yielded significantly higher growth rate and biochemical composition. However, growth was more heterogeneous. No evidence was found for a length or weight bimodal frequency distribution within triploid groups after a 26 months rearing cycle. Triploids showed retardation of gametogenesis. Carbohydrates content in triploids remained almost constant (40%) from June to September. Their survival rates were significantly lower than controls. Moreover...
Tipo: Text
Palavras-chave: Biochemical compostion; Survival; Carrying capacity; Triploid; Growth; Oysters; Crassostrea gigas; Composition biochimique; Survie; Capacité trophque; Triploïdes; Croissance; Huîtres; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-3088.pdf

La Pêche dans les Pertuis charentais. Analyse des systèmes d'exploitation
Provedor de dados: 5
Autores: Mathieu-daude, Claire.
This study cornes after a preceding work (Bourlon, 1995), which pro vides an analysis of the fishery system of the "Pertuis Charentais" sea. The exploitation system was srudied more thoroughly, going further on sorne of the results of the preceding work and gathering data by survey. Investigations on accounts of fishing boats were carried out to link the economie factors to sociologie criteria. In order to know the different strategies of exploitation, two Ievels were examined in the study : the social environment of the exploitation units wich has familial, geographie and communal features and the behaviour of the exploitation chief. This two levels are both considered in the last part which gives a typology of the exploitation units. It is then showed...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00440/55204/56672.pdf

Community structure of harpacticoid copepods in a tropical reef lagoon (Fangataufa Atoll - French Polynesia)
Provedor de dados: 5
Autores: Villiers, L; Bodiou, Jy.
From the lagoon at Fangataufa Atoll, French Polynesia, forty-two species of harpacticoid copepods belonging to 21,genera were identified; over a third of them are new. The assemblages were largely dominated by epipsammic forms of the family Diosaccidae. Some endopsammic harpacticoids were found in deep water silty-sands, but mesopsammic forms were very rare. The harpacticoid community structure of the lagoon appears to be determined primarily by sediment granulometry as controlled by reef hydrodynamics. The harpacticoid copepod assemblages permit the identification of two major zones within the lagoon, namely the muddy deep central zone, and the inner sandy fringe at the periphery.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20476/18146.pdf

Carbon fluxes from the microbial food web to mesozooplankton. An approach in the surface layer of a pelagic area (NW Mediterranean Sea)
Provedor de dados: 5
Autores: Vanwambeke, F; Christaki, U; Gaudy, R.
The microbial food web structure, the carbon flux between mesozooplankton and the microbial community, and the importance of heterotrophs in the diet of marine zooplankton were investigated in the surface layer of a pelagic area of the NW Mediterranean Sea in five 24-h shipboard experiments: Heterotrophic flagellates grazed 65 % to 91 % of the bacterial production. However, the protozoan community seems also to utilize alternative carbon sources, such as small autotrophs. In most of the experiments, the estimated production of the protozoan &gt; 7 mu m was sufficient to supply mesozooplankton carbon demand. Copepods stimulated bacterial growth, presumably through excretion and preference for heterotrophic flagellates. Variations of the experimentally...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20727/18364.pdf

Sédiments superficiels marins et répartition de la crépidule (Crepidula fornicata) entre le Cap Fréhel et les abords de Saint-Malo
Provedor de dados: 5
Autores: Houlgatte, Erik.
L'étude géologique et biologique entreprise du cap Fréhel aux abords de Saint-Malo entre dans le cadre plus large d'un Programme d'analyse de la répartition et de l'estimation quantitative de la Crépidule à l'échelle du golfe normano-breton.  Le rapport d'analyses et d'interprétations présenté ici fait suite à la campagne de prospection océanographique CREPE 1, menée du 20 au 28 juillet 1995 à partir du NO / GWEN DREZ (Chef de mission: Michel BLANCHARD - IFREMER – Centre de Brest).  Ce volume comprend la notice explicative du document de synthèse ci-joint : CARTE DES SEDIMENTS SUPERFICIELS MARINS ET DE LA REPARTITION DE LA CREPIDULE, entre le cap Fréhel et les abords de Saint-Malo. Après un examen rapide du cadre géographique et physique du domaine étudié...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00095/20627/18254.pdf

Etude numérique et expérimentale des écoulements guidés par une paroi perméable axisymétrique. Application à la modélisation des chaluts pour en améliorer la sélectivité.
Provedor de dados: 5
Autores: Vincent, Benoit.
We present a numerical method for solving the turbulent, steady, incompressible, internal and external flow to a permeable axisymetric surface. This surface is placed in a uniform flow parallel to its axis. This method is based on the Navier - Stokes equations. Closure of the equations is realised by the K-epsilon turbulence model with specific conditions at the permeable surface. The model for the normal velocity component at the permeable surface is the Darcy equation. Tangential velocity component is given by the Saffman equation witch is modified. The second part is an experimental study of velocities and turbulence rates for axisymetric models (cylinders and cones). Comparison between calculation and experimental results shows that hypothesis are...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00292/40300/38749.pdf

OBSERVHAL96, campagne d'observations à finalité halieutique
Provedor de dados: 5
Autores: Latrouite, Daniel; Antoine, Loic; Cosson, Nathalie; Danel, Patrick; Desaunay, Yves; Dupouy, Herve; Galgani, Francois; Lorance, Pascal; Morandeau, Fabien; Morizur, Yvon; Rivoalen, Jean-jacques; Sacchi, Jacques; Troadec, Herve.
The scientific cruise Observhal96 took place in August 4-27, 1996 with the underwater system for exploration and intervention « Cyana » and the support vessel « Suroît ». The goal of this IFREMER first use of a man opereted submersible for a fisheries study was to observe fishes and invertebrates in their environment, as well as fishing gears in operation. All the dives, 2 to 5 hours long, took place off Brittany in Atlantic. Five were shalower than 100 meters, nine between 100 and 200 meters, one at 400 meters and for deeper than 1000 meters.  Six dives have been dedicated to in situ study of the impact of fishing gears : observation of the geometry of a monkfish tramel net and analysis of losses during hauling ; tracks of a bottom trawl and relative...
Tipo: Text
Palavras-chave: Fish behaviour; Fishery ecology; Submarine Cyana; Dive; Underwater observation; Comportement des poissons et invertébrés; Ecologie halieutique; Submersible Cyana; Observation sous marine.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-1554.pdf

Surveillance écologique du site du Blayais. Année 1995. Rapport scientifique
Provedor de dados: 5
Autores: Quintin, Jean-yves; Ifremer, France.
L'année 1995 se rapproche de l'année 1989, surtout par son été très chaud. Les conditions climatiques de 1995 montrent une insolation exédentaire et une pluviométrie déficitaire par rapport à 1994, surtout en juillet. C'est une année sèche, malgré les mois de janvier et février pluvieux. Elle se caractérise par de faibles débits liquides dès la fin mars. En 1995, la Gironde est en situation d'étiage. L'élévation des températures moyennes minimales de l'eau de l'estuaire semble liée au réchauffement progressif des conditions climatiques naturels, depuis le début des études. Les températures maximales sont toujours relevées au point E. La situation d'étiage se traduit par une intrusion haline plus importante : les maxima de salinité sont plus élevés en 1995...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00449/56102/57638.pdf

Etude des herbiers de Zostera noltii de l'étang du Vaccarès. Synthèse des résultats 1993 - 1995
Provedor de dados: 5
Autores: Auby, Isabelle; Grillas, Patrick.
Signalée pour la première fois en Camargue en 1975, dans les étangs inférieurs, Zostera noltii a colonisé le Vaccarès à partir du début des années 1980. En 1984, les herbiers de zostères recouvraient déjà 3000 ha dans l’étang . A cette époque, ces plantes colonisaient les zones de profondeur inférieure ou égales à 1,80 m, sauf dans le nord de l’étang, où elles se cantonnaient à des profondeurs inférieures à 1,20 m. Par la suite, bien que la salinité ait d’abord graduellement puis drastiquement diminué dans l’étang, les herbiers de zostères semblent s’être encore étendus Les objectifs de ce travail étaient de quatre ordres : 1. Analyser les changements de biomasse et de composition spécifique des herbiers sur les trois stations de mesure depuis 1993. 2....
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00150/26078/24188.pdf

By-catch and Discarding in Pelagic Trawl Fisheries
Provedor de dados: 5
Autores: Morizur, Yvon; Tregenza, N; Heessen, H; Beerow, S; Pouvreau, Stephane.
Incidental mammal catch and the composition of the fish catch were studied in pelagic trawl fisheries in the North-East Atlantic. Several seasonal European fisheries were investigated with scientific observation on the fishing vessels. A total of 379 days at sea were observed . The sampled fisheries were horsemackerel (Dutch, French), herring (Irish), mackerel (UK), pilchard (UK , French) and other French fisheries (hake, tuna, bass, black bream, anchovy). Unintentional catches of dolphins were recorded in four of the investigated fisheries (Dutch horsemackerel, French tuna, French hake and French sea bass) at a rate of 1 dolphin per 100 tow hours; Grey seals were caught in the Irish herring fishery at a rate of 4 individuals per 100 tow hours. The fish...
Tipo: Text
Palavras-chave: Albacore; Bluefin tuna Bass Black bream Whiting Hake Anchovy Pilchard Mackerel Horsemackerel Seal Cetacean Incidental mammal catch Reasons for discarding Discards By catch Pelagic trawl.
Ano: 1996
URL: https://archimer.ifremer.fr/doc/1996/rapport-1236.pdf

Toxicité inexpliquée des moules de la baie de Lazaret (Toulon) entre novembre 1993 et mai 1994
Provedor de dados: 5
Autores: Amzil, Zouher; Marcaillou-le Baut, Claire; Bohec, Madeleine.
Depuis janvier 1993, des épisodes de forte toxicité des coquillages ont été observés lors des contrôles de routine en différents points des côtes françaises. Les souris ayant reçu des extraits de coquillages, par voie intrapéritonéale, présentaient des symptômes de type neurologique et mouraient au bout de 5 à 15 minutes. Cette toxicité n'a pu être attribuée à l'existence de phycotoxines connues. Les études préliminaires réalisées sur les glandes digestives de moules toxiques, récoltées lors d'un de ces épisodes (rade de Toulon), nous ont permis d'acquérir les données suivantes : le principe actif possède une forte polarité, il est thermostable, et il est stable dans le temps et en milieu acide. L'intoxication par voie orale chez la souris a permis de...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00075/18596/16149.pdf

Report of the workshop on shellfish bivalve cultivation, growth, modelling and impact on the ecosystem
Provedor de dados: 5
Autores: Heral, Maurice; Bayne, B.
The Workshop was held in Plymouth (6-10 October 1996) in the Royal Plymouth Corinthian Yacht club organised by the Plymouth Marine Laboratory under the joint charmanships of B. Bayne et M. Héral. 36 scientists were participated to this meeting from 11 countries, 8 belonging to ICES (Annex 1) 30 communications have been presented. This meeting was supported by an European Union contrat from DG14 with a concerted action AIR3 CT 942219 on Trophic capacity of coastal zone of oysters, mussels and cockles cultivation. This contract has paid the travel cost of all the participants.
Tipo: Text
Palavras-chave: Coastal systems; Carrying capacity; Physiological results; Oyster; Shefflish bivalve.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/acte-7350.pdf

Poecilogony as a reproductive strategy of marine invertebrates
Provedor de dados: 5
Autores: Chia, Fs; Gibson, G; Qian, Py.
Poecilogony is a polymorphism of sexual development in some marine invertebrates, in which both feeding and non-feeding or planktonic and benthic larvae are produced. Since the original report on poecilogony by Gaird in 1905, a good number of such species have been recognized. Upon close examination, however, Hoagland and Roberston (1988) have found that almost all the 64 species reported to be poecilogonous are in fact a result of miss-identification of species or due to laboratory disturbance. To be a poecilogonous species, a different mode of development has to be found from sibling offspring of a single female, or from different individuals of a single biological species, and the different modes of development cannot be altered by disturbance in...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20478/18148.pdf

Etude de l'herpès virus de l'huître. Fonds d'Aide à la Recherche et à l'Innovation. Décision d'Aide à la Recherche n° 95-07-01 (Rapport intermédiaire)
Provedor de dados: 5
Autores: Renault, Tristan.
L'Unité de Recherche en Pathologie et Immunologie Générales (Station IFREMER de La Tremblade) se propose dans le présent projet d'étudier le virus de type herpès observée chez les huîtres (pouvoir pathogène, conditions d'expression de l'infection, transmission, etc ... ) et de développer des réactifs permettant de réaliser un diagnostic rapide, sensible et fiable de l'infection qu'il occassionne. Les diagnostics proposés seront basés sur la détection directe du virus, soit au moyen de réactifs immunologiques spécifiques des antigènes viraux, soit par des techniques de biologie moléculaire permettant de détecter l'ADN viral (hybridation de sondes nucléiques et réaction PCR : Polymerase Chain Reaction). Ce projet, proposé sur une durée de trois années...
Tipo: Text
Palavras-chave: Virus; Herpès; Pathogène; Purification; Herpesviridae; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00043/15447/12818.pdf

Impact on non target organisms of anti-marine wood-borer treatments. Evaluation of stress imposed by treatments on organisms from test sites
Provedor de dados: 5
Autores: Goulletquer, Philippe; Geairon, Philippe; Faury, Nicole; Razet, Daniel; Soletchnik, Patrick; Gras, Paul; Adessi, L.
In European waters, significant economic damages to wooden structures are caused by bivalves molluscs and crustaceans. Treatments like copper-chrome-arsenic mixtures (CCA) were designed to prevent settlement of these wood borer species. However, limited and conflicting evidence regarding the toxicity to non-target organisms are available in the literature. This report aims to provide insights regarding the CCA leachates' toxicity to an important aquaculture species, the blue mussel Mytilus edulis for which much information on normal and stressed physiology is available for purposes of comparisons. The mussels are usually considered as a particularly suitable species for biological monitoring (Smaal and Widdows, 1994). To address the CCA leachate issue, two...
Tipo: Text
Palavras-chave: Bivalvia; Mussel; Mytilus edulis; Copper-chrome-arsenic (CCA); Treatment; Feeding; Absorption.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00043/15437/12788.pdf

Dosage biochimique de l'acide okadaïque par inhibition des protéines phosphatases
Provedor de dados: 5
Autores: Le Plomb, Eric.
En France, l'acide okadaïque (AO), toxine produite par Dinophysis sp, est responsable des Intoxications Diarrhéiques par les Fruits de Mer (I.D.F.M.). C'est un puissant promoteur tumoral qui inhibe les protéines phosphatases (PP) de façon spécifique. Son dosage dans les coquillages doit être sensible, simple, rapide et rentable. Il est réalisé par inhibition de l'activité pNPP-phosphatasique de la protéine phosphatase 2A (PP2A) à 30°C et pH 8,5. Les tests sont effectués sur des glandes digestives de coquillages qui concentrent la toxine. L'extrait enzymatique de PP2A est issu soit de chair de moules non contaminées, soit de muscle de lapin. La réalisation d'une gamme étalon d'AO et la détermination de l'activité relative théorique de la PP2A permet de...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00444/55521/57109.pdf

Seuil de production de pseudo-fécès de l'huître creuse du Pacifique : Crassostrea gigas (Thunberg) dans des conditions de faibles charges particulaires
Provedor de dados: 5
Autores: Soletchnik, Patrick; Goulletquer, Philippe; Geairon, Philippe; Razet, Daniel.
This study is part of a comprehensive research program focusing on the oyster shellfish management in the Marennes-Oleron Bay: Within this program, a task aimed to develop a biological model of the Pacific cupped oyster Crassostrea gigas. Our study addressed the issue of pseudo-faeces production threshold under various diet quality levels. Pseudo-faeces sampling was carried out using particulate matter concentration below Il mg 1-1 The various modalities prompted us to define two pseudo-faeces production models. The first model was developed using natural seawater. The organic matter ratio ranged from 25 to 45% while the pseudo-faeces production threshold reached 2.9 to 4.4 mg 1-1 of total particulate matter. The second model was established using seawater...
Tipo: Text
Palavras-chave: Marennes Oleron; Pseudo faeces; Crassostrea gigas; Oysters; Biological model; Marennes Oléron; Pseudo fécès; Crassostrea gigas; Huîtres; Modèle biologique.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-3087.pdf

Suivi régional des nutriments sur le littoral Nord/Pas-de-Calais/Picardie Bilan de l'année 1996
Provedor de dados: 5
Autores: Truffier, Séverine; Hitier, Benoist; Olivesi, Rene; Delesmont, Régis; Morel, Marc; Loquet, Nicolas.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00081/19239/16834.pdf

Les rejets dans la pêche artisanale de Manche occidentale
Provedor de dados: 5
Autores: Morizur, Yvon; Pouvreau, Stephane; Guenole, Annie.
Observers were set on board of fishing vessels from North Brittanny ports during one full year (1992-93). This study granted by EC Commission (contract CE/DGXIV-C-1 n° 1992/06) was a first approach for assessing French discards in the western English Channel. It identifies the main species discarded and produces a rough estimate of discard rates and size compositions in each métier targeting fish. The major reasons for variability were explained. Size compositions of catches and discards were provided in order to permit better estimates of the mortality induced by fishing operations. The fixed nets observed were large mesh nets (270 to 360 mm) targeting monkfish and small mesh nets (&lt;200 mm) targeting coastal resources. Netting was found to be more...
Tipo: Text
Palavras-chave: France; Western English Channel; Bottom trawls; Fixed nets; Fisheries; Discards.
Ano: 1996
URL: https://archimer.ifremer.fr/doc/1996/rapport-1730.pdf

Campagne CITHER 2 N/O Maurice Ewing (4 janvier-21 mars 1994). Recueil de Données. Volume 3 : Traceurs Géochimiques
Provedor de dados: 5
Autores: Memery, Laurent; Messias, Marie-josé; Arhan, Michel; Billant, Andre; Branellec, Pierre; Mercier, Herle; Alvarez Salgado, Xosé; Gonzales Castro, Carmen; Rios, Aida F.; Roson, Gabriel; Arlen, Linda; Bingler, Linda; Groupe CITHER 2.
De janvier à Mars 1994 s'est déroulée la campagne CITHER 2 du programme WOCE-France, dans le but d'étudier les écoulements le long du bord Ouest de l'Océan Atlantique Sud. Les paramètres hydrologiques et géochimiques requis par le Programme Hydrologique de WOCE (WHP) ont été mesurés de la surface au fond, à 235 stations situées le long d'une radiale quasi-méridienne allant de 52° S à 10° N à environ 600 km du talus continental et, transversalement à cette radiale, le long de trois segments allant jusqu'au talus continental à environ 35° S, 13° S, et 10° N. Ce rapport, qui est le troisième volume de la série des recueils de données CITHER 2, présente les mesures des paramètres géochimiques mesurés sur prélèvements d'eau (salinité, oxygène dissous, sels...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00238/34907/33185.pdf

REMORA 94. Analyse des résultats de la seconde année du réseau de suivi de la croissance de l'huître creuse sur les côtes françaises
Provedor de dados: 5
Autores: Goyard, Emmanuel.
The Aquaculture Resources department Mollusc Network (REMORA ) has been monitoring in 1994 like in 1993 the growth of homogeneous batches of Crassostrea gigas (initially 18 months old, same origin, same history, same size) in the main French production areas. The monitored parameters deal with growth, morphology, survival, composition and parasite infestations. The comparison between two rearing conditions (traditional bags versus wooden plate to which individuals were stuck) demonstrated like in 1993 improved growth rate (which could also be explained by the lower local density) and a tendency for the oysters to become wider on plates (which is probably related to the absence of shell erosion). Major regional characteristics are revealed by the analysis,...
Tipo: Text
Palavras-chave: Growth; Crassostrea gigas; Cupped oyster; Oyster culture; Monitoring network; Croissance; Crassostrea gigas; Huître creuse; Ostréiculture; Réseau.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-1650.pdf

Contrat de Plan Etat Région Poitou-Charentes 1994-1998. Convention 96 RPC R70 - Programme Pathologie - Rapport Scientifique année 1996
Provedor de dados: 5
Autores: Renault, Tristan; Berthe, Franck; Chollet, Bruno; Cochennec, Nathalie; Haffner, Philippe; Le Deuff, Rose-marie; Lipart, Cecile; Thebault, Anne.
Le but de ce programme pathologie est de rechercher et d'étudier les agents pathogènes connus et inconnus chez les mollusques bivalves marins, plus particulièrement chez l'huître creuse, Crassostrea gigas, afin d'identifier d'éventuels agents causant des mortalités, de proposer des mesures prophylactiques et de définir des conditions zootechniques permettant aux professionnels de limiter l'impact des maladies sur leur cheptel. La présence de maladies, chez les mollusques bivalves marins dont l'impact socio économique peut être catastrophique pour les productions conchylicoles, et l'accroissement des échanges de produits d'aquaculture entre les pays de la CEE et avec les pays tiers nécessitent le renforcement des recherches dans les domaines de la...
Tipo: Text
Palavras-chave: Pathologie; Pathogènes; Virus; Herpès virus; Crassostrea gigas; Diagnostic; Herpesviridae.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00043/15452/12827.pdf

Genetical improvement of marine fish and shellfish : a french perspective
Provedor de dados: 5
Autores: Boudry, Pierre; Chatain, Beatrice; Naciri-graven, Yamama; Lemaire, Christophe; Gerard, Andre.
In France, marine fish and shellfish farming is based mainly on the breeding of wild species, whose natural populations are traditionally exploited. Research programs are conducted by IFREMER, in co-operation with INRA and Universities. French research programs for the genetical improvement of marine fish and shellfish concern primarily seabass (Dicentrarchus labrax) and oysters (Ostrea edulis and Crassostrea gigas). The following programs are developed:  •The knowledge of wild and farmed populations. The most recent prodjects involve the highly variable microsatellite markers. Seven markers are presently available for seabass and the work is now initiated on turbot (Scophthalmus maximus). In molluscs, microsatellite markers have been developed for the...
Tipo: Text
Palavras-chave: Selection; Triploid; Shellfish; Fish; Genetic.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/acte-3206.pdf

L'ichthyofaune des écosystèmes associés à l'hydrothermalisme océanique : état des connaissances et résultats nouveaux
Provedor de dados: 5
Autores: Geistdoerfer, P.
Seven new fish species have been found so far on the Pacific and Atlantic hydrothermal vents: the synaphobranchid Thermobiotes mytilogeiton; the zoarcid Thermarces cerberus and Pachycara thermophilum; the bythitid Bythites hollisi; the cyclopterid Careproctus hyaleius; one zoarcid fish; and one ophidiid fish. The characteristics of the 70 specimens collected, and their location in French and American museums, are listed. The results and observations made on vent fishes and fishes living around the periphery of the vents observed during recent dives (especially along the East Pacific Rise between 17 and 19 degrees S, the North Fiji Basin Rise and the Mid Atlantic Rise) are summarized. Previous literature on vent fishes is reviewed.
Tipo: Text
Palavras-chave: Hydrothermalism; Deepsea; Fishes; Atlantic Ocean; Pacific Ocean.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20724/18361.pdf

Sédiments superficiels marins et répartition de la crépidule (Crepidula fornicata) entre le Cap Frehel et les abords de Saint-Malo - Volume 2 : Annexes
Provedor de dados: 5
Autores: Houlgatte, Erik.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00104/21550/19129.pdf

Consequences of larval feeding environment for settlement and metamorphosis of a temperate echinoderm
Provedor de dados: 5
Autores: Basch, Lv; Pearse, Js.
Relationships between phytoplankton biomass and recruitment strength of benthic invertebrates with feeding larvae have been considered only in the numerical sense, not in terms of the condition of individuals at settlement. Since material and energy in some larval structures is transformed at metamorphosis into post-larval structures, and since their development is food-dependent, we hypothesized that plankton food availability links the ecology of the transition between invertebrate larvae and juveniles. We tested this hypothesis in laboratory and field experiments with the sea star Asterina miniata. Sibling larvae were reared in sea water containing natural phytoplankton at three concentrations simulating either (1) oligotrophic offshore, (2) temperate...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20487/18157.pdf

Cytotoxic and antibacterial properties of Mytilus galloprovincialis, Ostrea edulis and Crassostrea gigas (bivalve molluscs) hemolymph
Provedor de dados: 5
Autores: Hubert, Florence; Van Der Knaap, Wil; Noel, Thierry; Roch, Philippe.
Mussel (Mytilus galloprovincialis) plasma contains cytotoxic activity against both vertebrate (erythrocytes and mouse tumour) and protozoan cells. Procaryotes (Escherichia coli and Vibrio alginolyticus) were not sensitive to the cytotoxicity. The activity was still present in dialyzed samples but was inhibited by heating at 45°C. Large individual variability which was not correlated with protein concentration and an increasing number of reactive specimens following injection, suggested that naive mussels were in various stages of immune response. Purification by anion exchange chromatography followed by gel filtration revealed a 320 kDa cytotoxic polymeric protein that acts through a polymerization process after binding onto target cell membranes as...
Tipo: Text
Palavras-chave: Cytotoxicité; Antibactérien; Hémolymphe; Lysat d'hémocyte; Moule; Huître; Mytilus galloprovincialis; Ostrea edulis; Crassostrea gigas; Cytotoxicity; Antibacterial; Hemolymph; Hemocyte lysate; Musssel; Oyster; Mytilus galloprovincialis; Ostrea edulis; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00039/15008/12333.pdf

The Kuroshio intermediate water is the major source of nutrients on the East China Sea continental shelf
Provedor de dados: 5
Autores: Chen, Cta.
The Kuroshio subsurface waters upwell onto the East China Sea (ECS) shelf and contribute a large amount of nutrients to the ECS. This contribution is many times more than the inputs from the Yangtze and the Yellow Rivers. The residence time of the ECS shelf water is estimated at 1.3 +/- 0.4 years. The new production rate of phytoplankton is 73 +/- 22 mg C/m(2)/day and the net burial rate of organic carbon is 41 +/- 23 mg C/m(2)/day.
Tipo: Text
Palavras-chave: East China Sea; Kuroshio; Nutrients; New production; Residence time.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20722/18359.pdf

Towards a mathematical model of cellular behaviour of enteric bacteria as affected by marine conditions
Provedor de dados: 5
Autores: Martin, Y.; Bonnefont, Jl; Trousselier, M.
A model of E. coli's responses to marine environmental conditions and resulting cell behaviour has previously been developed. The model considers two kinds of antistress physiological responses and three induced cellular categories with different properties (culturable cells B1, viable but definitively non-culturable cells B2, resuscitable dormant cells B3). Since previous simulations have shown a good correlation with experimental data, we analyse here the effects of some environmental parameters (organic matter, salinity, sunlight) on cellular category dynamics in sea water. Results show that sunlight is the most important factor affecting that dynamics. With the use of two E. coli inocula (log or stationnary phase cells), sanitary implications of the...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00132/24328/22327.pdf

Short term variations in feeding and metabolism of Acartia tonsa (pelagic copepod) in the Berre lagoon (France)
Provedor de dados: 5
Autores: Gaudy, R; Pagano, M; Cervetto, G; Saintjean, L; Verriopoulos, G; Beker, B.
Feeding, respiration, and ammonia excretion of Acartia tonsa were studied in a brackish lagoon, near Marseilles (Southern France). The experiments were performed during the same season in two successive years, using naturally occurring particles as food. Strong variations in both quantity and quality of food particles were recorded between the two series of experiments. The ingestion of particles according to their size was studied by means of the Coulter Counter technique. Females ingested more food than males. In both sexes, there was a tendency to select median to large particles, regardless of the shape of the particles-size spectrum. In 1990, the specific production rate, deduced from the energy budget, was equivalent to or greater than the observed...
Tipo: Text
Palavras-chave: Acartia tonsa; Feeding; Metabolism; Production.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20731/18368.pdf

Cholinomimetic drugs may affect growth and metamorphosis of the sea urchin larva
Provedor de dados: 5
Autores: Marchi, B; Trielli, F; Falugi, C; Corre, Mc; Fenaux, L.
Cell-to-cell and cell-environment interactions are known to play a role during the first events of sea urchin development. Larval metamorphosis in benthic invertebrates is induced by environmental signals (cues), received by membrane receptors. The activity of such cues may be disturbed by the presence of toxic agents from pollution. We consider the possibility that neurotransmitter receptor-like molecules may have a role in the regulation of larval development and metamorphosis. To investigate the effects exerted on these processes by neuroactive pollutants, such as neurotoxic insecticides, we tested the function of acetylcholine receptors (muscarinic acetylcholine receptors mAChR and nicotinic acetylcholine receptors nAChR) in larvae of Paracentrotus...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20747/18376.pdf

Campagne CITHER 2 N/O Maurice Ewing (4 janvier-21 mars 1994). Recueil de Données. Volume 1 : Mesures "En route". Paramètres Météorologiques, Bathymétrie et Courantométrie Doppler
Provedor de dados: 5
Autores: Memery, Laurent; Arhan, Michel; Daniault, Nathalie; Hemon, Catherine; Mercier, Herle; Chipman, David W.; Groupe CITHER 2.
De janvier à Mars 1994 s'est déroulée la campagne CITHER 2 du programme WOCE-France, dans le but d'étudier les écoulements le long du bord Ouest de l'Océan Atlantique Sud. Les paramètres hydrologiques et géochimiques requis par le Programme Hydrologique de WOCE (WHP) ont été mesurés de la surface au fond, à 235 stations situées le long d'une radiale quasi-méridienne allant de 52° S à 10° N à environ 600 km du talus continental et, transversalement à cette radiale, le long de trois segments allant jusqu'au talus continental à environ 35° S, 13° S, et 10° N. Ce rapport, qui est le premier des trois recueils de données CITHER 2, contient une brève description générale du programme CITHER et de la campagne CITHER 2, suivie d'une présentation des paramètres "en...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00238/34905/33175.pdf

Les systèmes de solvants en chromatographie de partage centrifuge
Provedor de dados: 5
Autores: Camacho-frias, E; Foucault, A.
Centrifugal partition chromatography (CPC) or countercurrent chromatography (CCC) is a kind of liquid-liquid chromatography without solid phase. Two immiscible liquids in equilibrium share the total volume of a ''column'' designed to keep one phase pseudo-stationary. A tremendous variety of biphasic systems are available, which can lead to some difficulty when a selection must be made. Ternary diagrams, describing mixtures of three solvents, and systems with four solvents or more, used by research scientists familiar with this chromatographic technique, are useful guides for a rational choosing of a biphasic system in CCC &amp; CPC.
Tipo: Text
Palavras-chave: Countercurrent chromatography; Centrifugal partition chromatography; Ternary diagram; Separation; Purification.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00282/39325/57898.pdf

L'eutrophisation en Baie de Somme : mortalités des peuplements benthiques par anoxie
Provedor de dados: 5
Autores: Rybarczyk, H; Elkaim, B; Wilson, Jg; Loquet, N.
Massive mortalities of the benthic fauna, notably the cockle Cerastoderma edule, a commercially exploited species, were observed in the Pale de Somme in 1982, 1983, 1985, 1989 and 1990. Measurements of oxygen saturation levels of the surface water provided evidence of oxygen depletion (65% in 1989 and 62% in 1990). Oxygen saturation was inversely related to phaeopigment a concentrations due to eutrophication, leading to the depletion of oxygen or anoxia and initiating the mortalities, which were important and localized in areas where water persisted at low tide: intertidal pools, films of water on the sediment surface. From laboratory and field experiments, a simple model of the anoxia in intertidal water pools was constructed, based on the oxygen...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00093/20474/18144.pdf

Calanus and environment in the eastern North Atlantic. 2. Role of the North Atlantic Oscillation on Calanus finmarchicus and C. helgolandicus
Provedor de dados: 5
Autores: Fromentin, Jean-marc; Planque, Benjamin.
The influence of the North Atlantic Oscillation (NAO) on 2 major zooplankton species ofthe eastern North Atlantic and the North Sea, Calanus finmarchicus and C. helgolandicus (Copepoda, Calanoida), was investigated. Our results confirm that from December to April, west wind stress (WWS) intensity and temperature are strongly related to the NAO. If these results were expected, more striking were the close relationships between NAO and Calanus species abundance. Fluctuations in abundance of C. finmarchicus mainly result from the combination of 2 factors, both driven by the NAO: WWS effects on spring primary production and temperature. The case of C. helgolandicus is more complicated,as the links between this species and the NAO result from the combination of...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00033/14456/11758.pdf

Rapport d'activité 1996 de l'Unité de Recherche Aquacole en Poitou-Charentes
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Rapport d'activité 1996 de l'Unité de Recherche Aquacole en Poitou-Charentes.
Tipo: Text
Palavras-chave: Aquaculture; Physiologie; Invertébrés marins; Croissance; Estimation stocks; Rapport activités.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00071/18255/15818.pdf

Technique de PCR appliquée à la détection du virus de type herpès de l'huître creuse, Crassostrea gigas : diagnostic et applications expérimentales
Provedor de dados: 5
Autores: Severin, Patricia.
L'objet de ce travail rapporté ici était de mettre au point un protocole de traitement des échantillons qui soit fiable, reproductible et rapide, en utilisant la PCR comme outil de détection du virus. Il s'agissait de  déterminer le mode de traitement de chacun des échantillons, larves, naissain ou adultes, les quantités de matériel à doser afin d'éviter les faux négatifs et, de définir la sensibilité de la méthode. Ce protocole, une fois établi, a été utilisé dans le domaine expérimental afin de définir quelques caractéristiques du virus : mode de transmission, survie, thermosensibilité.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00428/53914/55034.pdf

Recherches écologiques et écotoxicologiques en milieu marin et estuarien
Provedor de dados: 5
Autores: Dhainaut, A.; Dhainaut-courtois, Nicole.
Un groupe de chercheurs du Laboratoire de Phylogénie moléculaire des Annélides (Dir A. Dhainaut) et ceux du Service qui lui est associé d'Hydrobiologie et d'Ecotoxicologie (Resp. N.Dhainaut) effectuent des recherches sur l'écologie, la toxicologie et l'écotoxicologie de milieux aquatiques. Les travaux de terrain (Thème 1) proprement dits marqués par des études écologiques, physico-chimiques et chimiques portant essentiellement sur les sédiments et les macroinvertébrés benthiques permettent un diagnostic immédiat de l'état des écosystèmes. C'est ainsi que peuvent être quantifiés et suivis dans l'espace et le temps la charge des sédiments en micropolluants et le transfert de ces derniers dans le compartiment biotique et estimée la biodiversité (avec...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00035/14576/11880.pdf

Export of dissolved metals from the North Sea to the Channel: Additional field evidence
Provedor de dados: 5
Autores: Zhang, H; Chou, L; Wollast, R.
Longitudinal distribution of dissolved nickel and cobalt along the English coast of the Channel is similar to that previously observed for dissolved aluminium. The exponential decay, as a function of salinity, of the concentration of a relatively conservative element such as nickel strongly supports the hypothesis that significant amounts of dissolved trace elements could be exported from the North Sea to the Channel.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20738/18375.pdf

Long-term changes (1954 to 1982) in the benthic macrofauna under the combined effects of anthropogenic and climatic action (example of one Mediterranean Bay)
Provedor de dados: 5
Autores: Bourcier, M.
This research was carried out in a bay situated to the east of Marseilles (Cotes de Provence, France). The infra- and circalittoral macrobenthos was studied over a period of 28 years. During this series of investigations, carried out in 1959 (1954-59)-1962-1972-1976 and 1982, the bay was subjected to violent anthropogenic pressures, aggravated by climatic change that lasted for several consecutive years. The anthropogenic factors include the extension of a harbour, the construction of a yacht harbour near the main harbour, the installation of two outfalls for untreated urban sewage, deposits in the circalittoral zone of material from dredging of the harbour, the indirect impact of a distant coastal river diverted into the sewage main of the city of...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20735/18372.pdf

Influence of an environmental parameter in seabass (Dicentrarchus labrax L.) voluntary feed intake in intensive production system. General experimental designe illustrated by the example of water ammonia nitrogen level action
Provedor de dados: 5
Autores: Coves, Denis; Gasset, Eric; Lemarie, Gilles; Dutto, Gilbert.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00317/42853/42268.pdf

Sensitivity of the upper ocean structure to atmospheric forcing
Provedor de dados: 5
Autores: Karaca, M.
A one-dimensional model of the upper ocean is presented. The model is based on a self-similar temperature profile (called the model-profile) and features special parameterizations of forcing functions in terms of surface heat flux and wind stress. The model-profile is combined with observational data for the Pacific Ocean to produce dynamically consistent fields of mixed-layer temperature, depth, and effective depth. The model for the upper ocean is forced with surface heat fluxes simulated by the UCLA Atmospheric General Circulation Model (AGCM) using both climatological and observed sea-surface temperature (SST) for periods following the 1982-1983 ENSO event. Furthermore, the mixed-layer temperature is taken as the SST used in the AGCM. In this context,...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20737/18374.pdf

Acclimatation de nouvelles espèces d'huîtres creuses du genre Crassostrea: hybridation et conservatoire de souches. Amélioration de la qualité chez l'huître creuse Crassostrea gigas par sélection de souches performantes - Rapport année 1996
Provedor de dados: 5
Autores: Boudry, Pierre; Naciri, Yamama; Collet, Bertrand; Cornette, Florence; Heurtebise, Serge; Ledu, Christophe; Chollet, Bruno; Phelipot, Pascal; Gerard, Andre.
Les objectifs pour l'année 1996 étaient les suivants: Poursuivre les premières reproductions des espèces pour lesquelles nous disposons de géniteurs GO. L'objectif est toujours de limiter le stockage d'animaux importés en produisant une descendance simultanément à des témoins C. gigas qui serviront de comparaison. Tenter des hybridations inter-spécifiques des différents taxons présents au sein du conservatoire en fonction des connaissances disponibles dans la littérature sur ce sujet (voir pour revue Gaffney et Allen, 1993). • Importer de nouvelles souches ou espèces. Élargir la gamme des espèces présentes au sein du conservatoire de souches (les capacités d'accueil de la salle de quarantaine étant Limitée).
Tipo: Text
Palavras-chave: Génétique; Acclimatation; Hybridation; Crassostrea; Sélection génétique; Saccostrea commercialis.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00044/15516/12903.pdf

Evaluation du polymorphisme de deux populations d'huître plate: Ostrea edulis sélectionnées pour une résistance au parasite: Bonamia ostreae
Provedor de dados: 5
Autores: Holl, Katia.
La concyliculture française a été confrontée, au début des années soisante-dix, à deus épizooties, la bonamiose et la marteiliose, qui sont à l'origine d'importantes fluctuations des productions ostréicoles. Le renouvellement et le repeuplement des parcs ostréicoles, décimés par ces maladies, a nécessité la mise en place de divers travaux de recherche. Parmi ces travaux, la sélection de la populations résistantes a été développée à l'IFREMER. La variabilité gééntique de ces populations sélectionnées a été étudiée et comparée à celle des populations provenant du milieu naturel. L'étude de cette variabilité consite à déterminer l'existance de modifications génétique entre ces populatins. Ainsi cette variation gééntique est recherchée essentiellement par le...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00410/52164/52883.pdf

Megafauna from sublittoral to abyssal depths along the Mid-Atlantic Ridge south of Iceland
Provedor de dados: 5
Autores: Copley, Jtp; Tyler, Pa; Sheader, M; Murton, Bj; German, Cr.
101 species were identified from 102 biological samples obtained between 225 and 2600 m depth on the Reykjanes Ridge, extending the biogeographic records for several species. Multivariate analysis of between-sample species similarity reveals a two-zone bathymetric faunal distribution with the transition at 800-1000 m. A hydrographic survey of the ridge axis suggests that this faunal zonation is influenced by the water mass structure. Despite the limitations of a sampling programme not designed a priori for biological sampling, the recovery and preservation of the samples and the insight that they provide serves to reinforce that every effort should be made to capitalise on the opportunities for obtaining samples afforded by non-biological sampling...
Tipo: Text
Palavras-chave: Mid-ocean ridge; Megafauna; Reykjanes Ridge; Bathymetric zonation; Water mass structure.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20725/18362.pdf

Organisation of the production in aquaculture : a comparison between eastern Europe and western Europe
Provedor de dados: 5
Autores: Paquotte, Philippe.
For Eastern European countries which have limited coastlines or have not access any more to foreign fishing zones in Africa or Asia, aquaculture is a major issue in aquatic products supply. Following the political and economic transformations which have occurred since 1989, the fish farming production has been decreasing in most of countries of the former Eastern bloc. Meanwhile, many enterprises have been restructured and new forms of organisation production have appeared. The transition from State-owned status to private entrepreneurship is not realised at the same pace in all the countries, but is a general trend. Not only the producers have to adjust to this new economic context, but they have to shift from production-driven to market-driven behaviour....
Tipo: Text
Palavras-chave: SEM.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/acte-4070.pdf

L'acétylcholinestérase, marqueur de neurotoxicité. Application à la surveillance des effets biologiques des polluants chez les organismes marins
Provedor de dados: 5
Autores: Bocquene, Gilles.
Les cholinestérases et particulièrement l'acétylcholinestérase (AChE) constituent la cible privilégiée de nombreuses molécules neurotoxiques notamment des insecticides organophosphorés (OP) et carbamates. La sensibilité des cholinestérases à ces inhibiteurs est aussi complexe que le polymorphisme de ces enzymes. L'utilisation des niveaux d'activité des cholinestérases comme marqueur d'exposition aux neurotoxiques dans le milieu marin implique donc une connaissance approfondie du polymorphisme de i'enzyme, de Ja sensibilité des formes AChE identifiées et des contaminants neurotoxiques susceptibles de provoquer des variations dans l'activité de cette enzyme chez les organismes marins. Aprés une synthèse des connaissances sur le polymorphisme des...
Tipo: Text
Palavras-chave: Biomarqueur; Cholinestérases; Pollution marine; Huître; Organophosphorés; Carbamates.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00443/55435/56950.pdf

Experimental study of the Alboran Sea gyres
Provedor de dados: 5
Autores: Gleizon, P; Dhieres, Gc; Renouard, D.
In order to examine the response of the surface flow to the regime in the Gibraltar Strait, the Alboran Sea is modelled in a large rotating channel mounted on the 14 m ''Coriolis'' rotating platform. The channel is divided into two basins connected by a strait. The currents are initialized and maintained constant in time by pumps. When flowing out of the strait, the Atlantic current forms an anticyclonic gyre in the Mediterranean basin. This gyre is related to the Western Alboran Sea Gyre and can develop until its diameter is as large as the width of the basin. Depending on the parameters, the flow exhibits different configurations, which we are able to characterize with the use of tracers (food dye, floats). A very consistent result is that the flow seems...
Tipo: Text
Palavras-chave: Alboran Sea; Gyre; Jet; Strait; Physical modelling.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20720/18357.pdf

Development of a brown internal coloration in the scallop shell (Pecten maximus): study of microstructural characteristics and analyses of crystal organic matrices
Provedor de dados: 5
Autores: Larvor, H.; Cuif, J.p.; Devauchelle, Nicole; Dauphin, Y; Denis, A; Gautret, P; Marin, F.
Calcification abnormalities linked to a brown coloration of the internal layer of the valves have been observed on scallops - Pecten maximus - in different rearing sites of Brittany. Scanning electronic microscopic (SEM) observations demonstrate that the brown pigmentation is associated with various modifications of the foliated microstructure of the internal layer of the shell. Very brown shells have been compared to healthy white shells with different methods. According to the amino acid analyses, the production of the soluble organic matrices appears to be preserved in the diseased shells. A small but significant decrease in the aspartic acid content has been observed in the insoluble organic matrix of the brown shells. The Ca content is the same in the...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00048/15929/13355.pdf

REPHY (Réseau de Surveillance du Phytoplancton et des Phycotoxines). Méthodes de détection des phycotoxines diarrhéïques (DSP) et paralysantes (PSP). Méthodes biologiques sur souris
Provedor de dados: 5
Autores: Belin, Catherine; Marcaillou-le Baut, Claire; Amzil, Zouher; Ledoux, Martial.
This document describes and harmonizes detection methods of diarrheic (DSP) and paralytic (PSP) phycotoxins, for the laboratories of the Direction of Coastal Environment of IFREMER, which work in the framework of the French Phytoplankton and Phycotoxins Monitoring Network. These toxins, produced by a few phytoplankton species which regularly occur in sea water, accumulate in shellfish, which become toxic. Analysis is performed on an extract of digestive gland (DSP), or of total flesh (PSP), of shellfish. The described methods are meuse-tests, which are, at the present time, the only methods available to be used in the framework of a monitoring network. The method for diarrheic toxins is not standardized, with a threshold adapted for monitoring purposes. At...
Tipo: Text
Palavras-chave: Phycotoxines; Méthode de détection des toxines; Test-souris; Toxines diarrhéïques; DSP; Toxines paralysantes; PSP; Surveillance; Phycotoxins; Toxin detection method; Mouse-test; Diarrheic toxins; DSP; Paralytic toxins; PSP; Monitoring.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00429/54106/55438.pdf

Pré-contrat de baie - Golfe du Morbihan - Identification, localisation et estimation des biomasses d'algues vertes du golfe du Morbihan en 1995.
Provedor de dados: 5
Autores: Ifremer, Del; Ceva, Pleubian.
In 1995, the gulf of Morbihan was not showing on the whole a pronounced level of eutrophication, but has nonetheless three sites of green algae proliferation: the Auray river estuary, the branches of the Vannes and Séné estuary, as well as the outlet of the Noyalo's estuary. Only these last two sectors show algal developments that are "abnormal" and that can be linked to a specific phenomenon of eutrophication (Ulva green tide in the Rosvellec-Séné sector, Monostroma green tide in the Saint Armel-Tascon sector). In the spring of 1995, the observations made on the foreshores of the Gulf of Morbihan, excluding the islands, made it possible to estimate an algal biomass of between 2,000 and 6,000 tons.
Tipo: Text
Palavras-chave: Morbihan gulf; Eutrophication; Green seaweed; Green algae; Eutrophisation; Golfe du Morbihan; Algues vertes.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-2085.pdf

Intensive recirculation production system in seabass, Dicentrarchus labrax L.
Provedor de dados: 5
Autores: Coves, Denis; Gasset, Eric.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00259/37019/35519.pdf

Asexual reproduction by fission in Holothuria atra: Variability of some parameters in populations from the tropical Indo-Pacific
Provedor de dados: 5
Autores: Conand, C.
Holothuria atra is the most common aspidochirotid holothurian on tropical Indo-Pacific reefs, Asexual reproduction by transverse fission, followed by regeneration, has been studied at Reunion Island (Indian Ocean) and compared with different populations of the Indo-Pacific zone, thus permitting a better identification of the most significant parameters and a better understanding of this reproductive strategy. At Reunion Island, the species is studied at two stations on the same fringing reef: 1) on the back-reef where the fission rate is high (20 % of the population), the individuals small (generally weighting less than 150 g) and the population density high (4/m(2)); and 2) on the reef front, where fission is extremely rare, the mean size of the...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20479/18149.pdf

Surveillance écologique et halieutique du site de Paluel. Année 1995
Provedor de dados: 5
Autores: Thillaye Du Boullay, Herve; Toularastel, France; Maheux, Frank; Coppin, Franck; Richard, Ingrid; Davoult, Dominique; Roger, Franck.
The ecological survey n° 18 covering PALUEL nuclear power station took place between March and September 1995. The following areas were monitored Hydrology, microbiology, phytoplankton, zooplankton, intertidal phytobenthos and zoobenthos, and fishing. Paluel power station has now been operationnel for eleven years.
Tipo: Text
Palavras-chave: Benthos; Centrale nucléaire; Halieutique; Pélagos; Surveillance; Benthos; Fishing; Pelagos; Nuclear power station; Survey.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00081/19261/16856.pdf

Rapport d'activité 1996 du Laboratoire Génétique, Aquaculture et Pathologie de La Tremblade
Provedor de dados: 5
Autores: Gerard, Andre.
Rapport d'activité 1996 du Laboratoire Génétique, Aquaculture et Pathologie de La Tremblade.
Tipo: Text
Palavras-chave: Pathologie; Génétique; Invertébrés marins; Rapport Activité.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00071/18256/15819.pdf

Diel changes of the Benthic Boundary Layer macrofauna over coarse sand sediment in the western English Channel
Provedor de dados: 5
Autores: Zouhiri, S; Dauvin, Jean-claude.
The Benthic Boundary Layer (BBL) macrofauna over a coarse sand community at Trezen Vraz (western English Channel) was sampled with a modified Macer-GIROQ hyperbenthic sledge to analyse its diel changes on two occasions, in November 1988 (9 hauls), and in July 1990 (11 hauls). Species composition of the fauna, swimming activities, daily vertical migrations, biomass of the principal taxa, and biomass exchanges between the BBL, the benthos, and the pelages were studied. Sixty-one taxa in November and 129 taxa in July were sorted, counted, and classified into three groups: mesozooplankton, macrozooplankton, and hyperbenthos. In the mesozooplankton, copepods and crustacean larvae were very abundant in July. In the macrozooplankton, the chaetognath Sagitta...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20475/18145.pdf

Stratigraphy and sedimentary environments during the Late Quaternary, in the Eastern Bohai Sea (North China Platform)
Provedor de dados: 5
Autores: Marsset, Tania; Xia, D; Berne, Serge; Liu, Z; Bourillet, Jean-francois; Wang, K.
The Bohai Sea is a shallow sea at the east coast of China. It communicates with the Yellow Sea through a narrow strait. During and since the Late Pleistocene, the Bohai Sea has been a filled subsiding basin submitted to successive regressive-transgressive cycles. In the East Bohai Sea, a number of finger-shaped ridges are present near the strait, where tidal currents are dominant. Very-high resolution seismic reflection data have been interpreted relative to sedimentological data provided by a formerly drilled borehole.  Seven seismic units are identified and correlated with the following events: units U7-U6 with the Bohai relative sea level rise (65,000–53,000 yr B.P.) and a relative sea level fall (53,000–39,000 yr B.P.); unit U5 with the Xianxian...
Tipo: Text
Palavras-chave: Eastern Bohai Sea; Late Pleistocene; Stratigraphy; Relative sea level variations; Tidal ridges; Very-high resolution seismic.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00061/17193/14695.pdf

Etude d'un élevage intégré bars-huîtres
Provedor de dados: 5
Autores: Buchet, Vincent; Bluteau, A.
Whatever the hydraulic gestion, an épuration of the fishes sewages is possible with the integrated system studied. The main action is situed in the intermediary pond with a significant decrease of nutrients, especially ammonia, and particulate mineral matters. The oyster's pond have no significant action on nutrients, but their action is real on chlorophyll which become limiting factor in 20% renewal system. One of the effluent, system 1 (renewal 10%) had high suspended matter and low nutrient concentrations. The other (renewal 20%) was poor in supcnded matters (chlorophyll). The system 2 give best oyster's growth, close to traditional nursery performances, with an highest mortality (32%). In the first system, suspended matter concentrations are too high...
Tipo: Text
Palavras-chave: Valorization; Oyster; Pre ongrowing; Seabass; Integrated rearing; Valorisation; Huître; Prégrossissement; Bar; Elevage intégré.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-1917.pdf

Le merlu europeen (Merluccius merluccius L.). Bilan des connaissances biologiques. Evolution de l'exploitation. Evaluations des stocks et mesures de gestion
Provedor de dados: 5
Autores: Guichet, Roger.
European hake is one of the most important commercial species of the North East Atlantic. Its biology is quite well known in spite of age reading problems. This report provides a review of the state of knowledge based on updated data, specially for parameters used in the working groups in charge of stocks assessments. The fisheries for hake are essentially sequential. In recent years fishing mortalities have been moderate and the over exploitation of the stocks is due to the excessive catches of young fish and to the fishing pattern of some fleets. The result of this inappropriate exploitation pattern is dangerous with a decrease of the spawning stock biomass and recrutrnent for the two stocks.
Tipo: Text
Palavras-chave: Merlu; Nord Est Atlantique; Biologie; Exploitation; Gestion; Hake; North East Atlantic; Biology; Fisheries; Management.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00422/53327/54169.pdf

Adaptive aspects of phenotypic plasticity in echinoderms
Provedor de dados: 5
Autores: Ebert, Ta.
Echinoderms show phenotypic plasticity in which variation in environmental conditions elicit graded reaction norms of morphological change. With the sea urchin Strongylocentrotus purpuratus under laboratory conditions, decreases in available food caused decreases in dry weights of the gonad and gut coupled with increases in the mass of Aristotle's lantern and length of the demi-pyramids. Spine clipping caused increased spine growth as well as decreases in the gut and gonad masses. Survival rate remained unchanged over a range of feeding and clipping treatments. In the field, at Sunset Bay, Oregon, well-fed sea urchins, with relatively small demi-pyramids, showed survival rates similar to poorly fed sea urchins that had large demi-pyramids. The wide range...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20492/18187.pdf

Mid-water zooplankton profiles from the temperate ocean and partially landlocked seas. A re-evaluation of interoceanic differences
Provedor de dados: 5
Autores: Weikert, H; Koppelmann, R.
Differences in the vertical distribution of bathypelagic zooplankton in the open northeast Atlantic and in the partially landlocked Levantine and Red Seas were re-evaluated to provide an interoceanic comparison. The decrease in zooplankton abundance with depth was most pronounced in the Red Sea and least evident in the northeast Atlantic. The Levantine Sea showed intermediate characteristics. The data plotted on a semi-log scale against a linear change in depth revealed a reduced rate of decrease in the zooplankton concentration with depth in the deep bathypelagic zone of the northeast Atlantic and the Levantine Sea. This pattern was also found for vertical profiles of micronekton abundance in the southeast Pacific. In the Red Sea, the decrease was...
Tipo: Text
Palavras-chave: Bathypelagic zooplankton; Interoceanic comparison; Vertical distribution; Vertical flux.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20733/18370.pdf

Macrophytobenthos des platiers rocheux intertidaux et semi-exposés da la région de Safi-Essaouira (Maroc occidental)
Provedor de dados: 5
Autores: Birje, J; Verlaque, M; Poydenot, F.
In 1990, a study of the phytobenthos of the rocky intertidal platforms in the Safi-Essaouira region (Sidi Boulbra, Western Morocco) was carried out at three sites. The intertidal zonation was analysed along permanent transects, and a qualitative and quantitative study of two characteristic units of the eulittoral vegetation - the vegetation belt of Fucus spiralis and the communities of Florideophyceae - was made. One hundred and twenty-nine macroalgal taxa and three phases were listed: 19 Ulvophyceae, 19 Fucophyceae, 1 Bangiophyceae and 93 Florideophyceae. The intertidal communities of the area are typical of semi-exposed and unpolluted platforms of Western Morocco, in the eulittoral zone, most of the typical Fucales that occur along the NE Atlantic coasts...
Tipo: Text
Palavras-chave: Macroalgae; Phytosociology; Intertidal zone; Western Morocco; Atlantic.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20726/18363.pdf

Effects of temperature on herpes-like virus detection among hatchery-reared larval Pacific oyster Crassostrea gigas
Provedor de dados: 5
Autores: Le Deuff, Rose-marie; Renault, Tristan; Gerard, Andre.
This paper describes effects of temperature on herpes-like virus detection in Pacific oyster Crassostrea gigas larvae held at different temperatures. Intranuclear, intracytoplasmic and extracellular viral particles were observed in velum and mantle connective tissues of oyster larvae reared at 25-26°C. In larvae held at 22-23OC, although nuclear lesions were observed, the presence of viral particles was not detected. Results were obtained for oyster larvae with 4 different parental origins. Herpesvirus infection was found in 3 of the 4 groups of oyster larvae held In the same conditions at the higher temperature.
Tipo: Text
Palavras-chave: Temperature; Mortality; Larval culture; Crassotrea gigas; Pacific oyster; Herpesvirus.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-2900.pdf

Bilan 1992 de la contamination des côtes françaises par les composés organostanniques
Provedor de dados: 5
Autores: Michel, Pierre; Averty, Bernard.
Au cours du printemps 1992, un échantillonnage systématique a permis d'évaluer le niveau de la contamination des côtes françaises par les composés organostanniques. Le tributyl étain (TBT) a été mesuré dans la phase dissoute avec ses produits de dégradation dibutyl étain (DBT) et monobutyl étain (MBT). Les concentrations mesurées restent importantes dans les zones portuaires et les zones de mélanges. Ces concentrations sont le plus souvent excessives lorsqu'on se réfère au seuil toxique de 1ng.1-1 pour lequel des effets sont connus sur l'huître et certains autres mollusques. Les trois façades maritimes françaises ont été contôlées ; c'est en Méditerranée que l'on peut observer les plus fortes concentrations. En plus du TBT et de ses métabolites, on a aussi...
Tipo: Text
Palavras-chave: Tributyl étain; Dibutyl étain; Monobutyl étain; Triphényl étain; Composés organostanniques; Eau de mer; France.; Tributyltin; Dibutyltin; Monobutyltin; Triphenyltin; Organotin compounds; Seawater; French coasts.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00104/21530/19111.pdf

A biogeochemical comparison of sea loch sediments. Manganese and iron contents, sulphate reduction and oxygen uptake rates
Provedor de dados: 5
Autores: Overnell, J; Harvey, Sm; Parkes, Rj.
The sediments of the upper basins of Lochs Goil, Fyne and Etive were high in both solid phase extractable manganese (up to 3.7% w/w), and high in pore water manganese (up to 600 mu M), while Loch Linnhe sediments were low in manganese. Solid phase manganese from the surface sediments at the deepest stations was highest in those lochs where the mean residence time of the bottom water is longest, indicating the importance of manganese cycling through the water column. Porewater iron concentrations in the top 2 cm of sediment were highest near the heads of the lochs, i.e. near the main freshwater inputs. Within sediments of Lochs Goil, Fyne and Etive high rates of total sulphate reduction were associated with high relative rates of formation of acid volatile...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20497/18166.pdf

Contamination du milieu marin par les micropolluants (résultats du RNO de 1979 à 1994). 1 : Les estuaires de la Côte Basque
Provedor de dados: 5
Autores: Cantin, Christian.
After a quick presentation of the observation national network of the marine environment quality (RNO), the different metallic and organic Micropollutants measured in the three Basque coast estuaries (Adour, Nivelle, Bidassoa) are described (origin,eventual toxicity). The results of the contamination measurements in the living tissue (oysters) are presented on graphies, based on a sample every three months from 1979 to 1994, and means are compared to those obtained dming the same period on the others points of the Manche Atlantique coast.
Tipo: Text
Palavras-chave: Micropolluants; Estuaires; Côte Basque; Huîtres; Micropollutants; Estuaries; Basque Coast; Oyters.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00422/53308/54146.pdf

Analyse technico-économique de projets d'élevage d'ombrine (Sciaenops ocellata) en cages flottantes à la Martinique
Provedor de dados: 5
Autores: Houel, S; Falguiere, Jean-claude; Paquotte, Philippe.
The availability in interesting sites and the zootechnical performances of tropical fish are two impo rt ant assets in favor of the development of fish farming in the Caribbean islands. This repor presents a technical and financial analysis of red drum farming projects in  floating cages in Martinique(French West Indies). This project analysis makes it possible to compare the economic feasability of a small-scale production system with that of a semi-industrial one submitted to different technical constraints. The main criteria of the project analysis are the profitability of the funded capital, the financial feasability during the buildup period, the profitability at a steady state and the cost price. Production costs are hi gher in the the small-scale...
Tipo: Text
Palavras-chave: Caribbean; French West Indies; Martinique; Financial analysis; Production costs; Finfish; Aquaculture; Sciaenops ocellata; SEM; Caraïbes; Antilles Françaises; Martinique; Analyse économique; Coûts de production; Poissons; Aquaculture; Sciaenops ocellata.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-4019.pdf

Calanus and environment in the eastern North Atlantic. 1. Spatial and temporal patterns of C. finmarchicus and C. helgolandicus
Provedor de dados: 5
Autores: Planque, Benjamin; Fromentin, Jean-marc.
Spatial and temporal patterns of Calanusfinmarchicus and C. helgolandicus (Copepoda, Calanoida) were investigated in the northeast Atlantic and the North Sea from 1962 to 1992. The seasonal cycle of C.finmarchicus is characterised by a single peak of abundance in spring, whereas the seasonal cycle of C. helgolandicus shows 2 abundance maxima, one in spring and one in autumn. The former species mainly occurs in northern regions (limited by the 55*N parallel in the North Sea and by the 50*N parallel in the open ocean). The latter species shows 2 types of spatial patterns, occurring in the Celtic Sea during spring and in the Celtic Sea plus the North Sea in autumn. Differences in seasonal spatial patterns of Calanus species may result from different responses...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00033/14458/11760.pdf

Influence des rejets de pisciculture marine sur les mollusques : population des vibrions dans les coquillages du site Aquacole de Gravelines
Provedor de dados: 5
Autores: Delesmont, R.; Delesmont, E.
La présente étude, qui couvre l'année 1995, vise à préciser l'influence des modifications de la microflore des vibrions sur les gisements de coquillages proches de Gravelines. Elle s'appuie sur les suivis déjà en place et réalise des mesures complémentaires sur l'eau et les coquillages, à la fois sur le trajet des eaux concernant la ferme (moules et huîtres immergées en poches) et le milieu extérieur proche. En effet, les vibrions présents dans le milieu marin sont susceptibles de se multiplier avec l'élévation de la température. L'observation de ce phénomène est vérifiée à Gravelines et fait partie des programmes de surveillance écologique de la centrale électro-nucléaire et du centre aquacole. Ce dernier produit du bar et de la daurade (plus de 1000 t en...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00081/19220/16815.pdf

Experimental evidence of complex interactions between biotic and abiotic factors in the dynamics of an intertidal population of the bivalve Cerastoderma edule
Provedor de dados: 5
Autores: Demontaudouin, X; Bachelet, G.
Densities of the suspension-feeding bivalve Cerastoderma edule (L.) were manipulated inside field enclosures at two tidal elevations (low water level, LWL, and mid-tide level, MTL) on an intertidal sand flat in Arcachon Bay to test the influence of both adult densities and emersion time on (1) individual growth rate, (2) settlement rate, and (3) survival rate of cockles. These experiments were conducted during two consecutive years, in plots with ambient (Ix) and modified (1/3x, 3x, or 10x) densities of adult cockles. Growth rate and condition index of both adults and juveniles were significantly higher at the lowest tidal elevation (LWL), which is in accordance with the feeding mode of the species. The highest juvenile growth rate was recorded in the...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20501/18170.pdf

Seasonal abundance and vertical distributions of macroplankton and micronekton in the Northwestern Mediterranean Sea
Provedor de dados: 5
Autores: Sardou, J; Etienne, M; Andersen, V.
Based on monthly samplings over an entire year, variations of abundance, vertical distributions and diel vertical migrations are described in the 0-1000 m water column in a coastal area of the Northwestern Mediterranean Sea for the main pelagic invertebrates. Detailed results are given for 21 species of macrozooplankton and micronekton. On an annual basis, the most numerous species by numbers comprised the euphausiid Meganyctiphanes norvegica, the pteropod Cavolinia inflexa, the siphonophores Abylopsis tetragona and Chelophyes appendiculata, the crustacean decapods Sergestes arcticus and Pasiphaea sivado, and the salps Salpa fusiformis and Thalia democratica. Species of the same genus, such as Sergestes arcticus, S. corniculum and S. robustus or Pasiphaea...
Tipo: Text
Palavras-chave: Seasonal cycle; Vertical distribution; Macroplankton; Micronekton.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20732/18369.pdf

La contamination des coquillages fouisseurs du bassin d'Arcachon : conséquences sur l'exploitation des gisements
Provedor de dados: 5
Autores: Bobo, Jean-pierre.
La spécificité du mode d'alimentation des coquillages fouisseurs présentera toujours un facteur de risques important pour leur qualité bactériologique car ils filtrent les particules présentes sur le sédiment superficiel fortement contaminé. Sur le Bassin d'Arcachon, 300 tonnes de coques et 120 tonnes de palourdes sont pêchées au banc d'Arguin et sur les vasières internes du nord-est de la baie. Leur taux de contamination varie de façon importante selon les sites et les périodes de l'année. Si le secteur central du bassin (île aux oiseaux) semble indemne de pollution, la majorité des zones de pêche peut être ponctuellement contaminée. Ce risque doit ètre pris en compte par la règlementation qui impose des mesures permettant d'améliorer la qualité sanitaire...
Tipo: Text
Palavras-chave: Bassin d'Arcachon; Coquillages fouisseurs; Pêche; Contamination bactérienne; Décontamination bactérienne; Bernache cravant; Réglementation.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00443/55429/56947.pdf

Modélisation morphodynamique d'une embouchure tidale : Application aux Passes d'entrée du Bassin d'Arcachon
Provedor de dados: 5
Autores: Cayocca, Florence.
The Arcachon tidal inlet exhibits a particularly active morphology due to strong tidal currents and rough wave conditions. During the past 300 years, maximum and minimum extents of the Cap Ferret sand spit have resulted in a difference of 8 km while two channels have alternatively allowed circulation between the lagoon and the ocean.   A bidimensional horizontal morphodynarnic model was developed in order to simulate the system evolution under tidal forcing alone or under combined tide and wave action. Modelling at a scale of decades requires the definition of mean annual wave and tide conditions which are representative with respect to sediment transport. Medium term results thus give general trends of evolution. Driven by these average conditions and...
Tipo: Text
Palavras-chave: Littoral drift; Sediment transport; Tide; Waves; Arcachon lagoon; Tidal inlet; Modelling; Morphodynamic; Dérive littorale; Transport sédimentaire; Marée; Houle; Bassin d'Arcachon; Modèle; Morphodynamique.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/these-4520.pdf

Bioaccumulation of mineral elements within the vestimentiferan tube worm Riftia pachyptila (Jones): A review.
Provedor de dados: 5
Autores: Cosson, Rp.
The bioaccumulation of several elements in the tissues of the vestimentiferan worm Riftia pachyptila, collected at various sites of the East Pacific Rise, has been evidenced. Important fluctuations of elemental levels are observed among specimens originating from different sites, or even from the same site. These fluctuations are related to the exposure of the sampled organisms and to the high variability of the vent fluids (frequency, duration, intensity, direction, chemistry). The storage of the elements as mineral compounds and the abundance of metallothioneins are responsible for their apparent lack of toxicity, and provide evidence of existing detoxication processes. Cadmium, copper and zinc have been quantified in the blood, leading to the hypothesis...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20477/18147.pdf

Comparative study on the contamination and decontamination of Japanese oyster Crassostrea gigas and blue mussel Mytilus edulis by oxytetracycline and oxolinic acid
Provedor de dados: 5
Autores: Pouliquen, Hervé; Le Bris, Hervé; Buchet, Vincent; Pinault, Louis.
Marine fish farms use many antibacterial agents to prevent or fight bacterial diseases. The major part of the orally supplied drugs reach the environment, either directly due to excessive feeding and reduced appetite of the cultured fish, or indirectly after passing through the fish. Some of the drugs entering the environment may be taken up by bivalves. Comparative contamination and decontamination of Japanese oyster Crassostrea gigas and blue mussel Mytilus edulis were studied when these bivalves were kept during 10 d in seawater containing oxytetracycline (OTC) or oxolinic acid (OA) at concentrations of 0.15 and 1.50 mg l(-1). After the 10 d exposure at the seawater concentrations of 0.15 and 1.50 mg l(-1), OTC and OA concentrations in bivalve tissues...
Tipo: Text
Palavras-chave: Mussel; Oxolinic acid; Oxytetracycline; Oyster.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00282/39359/39437.pdf

Fatty acid characteristics in two symbiotic gastropods from a deep hydrothermal vent of the west Pacific
Provedor de dados: 5
Autores: Pranal, V; Fiala Medioni, A; Guezennec, Jean.
Two deep-sea gastropods, Ifremeria nautilei and Alviniconcha hessleri, collected on a hydrothermal site of the North Fiji Basin (Southwestern Pacific) were analysed for polar and neutral lipids using gas-liquid chromatography/mass spectrometry. A high level of monounsaturated fatty acids (MUFAs) and a low level of omega 3 series polyunsaturated fatty acids (PUFAs) indicated that nutrition of both gastropods was related to a food web based mainly on bacterial supply. From differences in MUFA distribution between the 2 gastropods, it appeared that most of the energy requirements of A. hessleri were supplied by sulfur-oxidizing endobacteria whereas I. nautilei probably had a mixotrophic diet based on endogenous as well as exogenous bacteria. Given the...
Tipo: Text
Palavras-chave: Hydrothermal vents; Gastropods; Chemosynthetic bacteria; Biomarkers; Fatty acids; Phospholipids; Neutral lipids.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00282/39287/43133.pdf

Proposition de programme. Atelier : Lagunes méditerranéennes. Programme : Mise en valeur des lagunes méditerranéennes
Provedor de dados: 5
Autores: Deslous-paoli, Jean-marc.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00341/45245/44681.pdf

A preliminary study of the behaviour and vitality of reseeded juvenile great scallops, of three sizes in three seasons
Provedor de dados: 5
Autores: Fleury, Pierre-gildas; Mingant, Christian; Castillo, A.
In order to have a better understanding of recessing in great scallop, Pecten maximus and consequently the causes of mortality at reseeding, this study has monitored, at different seasons, the dispersion and recessing of different sizes of juveniles (about 15, 30 and 45 mm, called small, medium and large) after seeding. Moreover, the aim was to see when small spat (15 mm) could be seeded, and thus reduce the costs of intermediate culture. Three monitoring approaches were used together: (1) continual observations by remote video camera, of a defined area (less than 1 m2) containing 10 scallops from each size group; (2) daily monitoring of behaviour with divers along three bottom lines, with 20 × 1 m2 plots each and nine marked scallops per plot; and (3) the...
Tipo: Text
Palavras-chave: Behaviour; Great scallop (Pecten maximus); Season; Seeding; Size; Vitality of spat.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00326/43752/43284.pdf

Quantifying the short-term temperature effect on light-saturated photosynthesis of intertidal microphytobenthos
Provedor de dados: 5
Autores: Blanchard, Gerard F.; Guarini, Jean-marc; Richard, Pierre; Gros, Philippe; Mornet, Francoise.
A mathematical expression is proposed to describe the relationship between the photosynthetic capacity (Pmax) of natural assemblages of motile benthic diatoms and temperature. Experiments were performed in 2 different seasons to document the response of Pmax to a rapid increase in temperature (3*C h-1). In both cases, there was a progressive increase in Pmax up to an optimum temperature (Topt), beyond which Pmax declined rapidly. Topt did not change from September to December 1995, but the maximum photosynthetic capacity (PMAX, i.e. Pmax at Topt) was twice as high in September as in December.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00013/12397/9183.pdf

Traitement des captures à bord - Code de bon usage - Réfrigération du poisson. ( 21 juin-14 juillet 1996)
Provedor de dados: 5
Autores: Chantreau, Patrick.
Dans le cadre d'une convention relative au plan d'accompagnement et de développement des activités de pêche hauturière en Polynésie française, à la demande de l'EVAAM, le laboratoire de "Génie Alimentaire" appartenant au Département Valorisation des Produits de l'IFREMER a été sollicité pour valoriser la ressource halieutique en Polynésie. Une première intervention c'est déroulée du 17 juin au 14 juillet 1996. L'objectif de cette action était de fournir aux professionnels des conseils pratiques concernant le traitement et le conditionnement des captures à bord. Une campagne de pêche sur un palangrier, le Tallassa Il, nous à permis d'appréhender les différentes étapes du traitement du poisson de sa sortie de l'eau à la vente en criée.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00134/24518/22547.pdf

Cytodétection des phycotoxines diarrhéiques - Une alternative au test de toxicité aiguë sur souris pour la surveillance de la salubrité des coquillages
Provedor de dados: 5
Autores: Amzil, Zouher.
The cytodetection test of diarrheic phycotoxin KB-cells (DRAME test) was developed to ultimately provide a substitute for the acute toxicity mouse-test currently used by IFREMER's phytoplankton monitoring network (REPHY). The cyctodetection test relies on the cell morphological changes induced by the phosphorylation of cytoskeleton proteins resulting from the inhibition of cell protein-phosphatases by okadaic-type toxins. The method is specific, sensitive and fast with results given on the same day. In addition, the method has been shown to produce a good correlation with the acute toxicity mouse-test as weil as with HPLC analyses of diarrheic phycotoxins. The cytodetection test was awarded the only Special Prize of the Jury at the 6th AMAL THEE Awards...
Tipo: Text
Palavras-chave: Acide okadaïque; Inhibition des protéines phosphatases; Cytodétection; Cellules KB; Okadaic acid; Inhibition of protein-phosphatase; Cytodeteciton KB-cells.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00156/26730/24811.pdf

Surveillance écologique et halieutique du site de Paluel - Année 1996
Provedor de dados: 5
Autores: Thillaye Du Boullay, Herve; Toularastel, France; Maheux, Frank; Coppin, Franck; Richard, Ingrid; Davoult, Dominique; Le Claire, Jacques.
The ecological survey n°19 covering PALUEL nuclear power station took place between March and September 1996. The following areas were monitored : Hydrology, microbiology, phytoplankton, zooplankton, intertidal phytobenthos and zoo~enthos, and fishing. Paluel power station bas now been operationnel for thirteen years.
Tipo: Text
Palavras-chave: Benthos; Centrale nucléaire; Halieutique; Pélagos; Surveillance; Benthos; Fishing; Pelagos; Nuclear power station; Survey.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00082/19326/16920.pdf

Near-surface structures in the Cape Ghir filament off Morocco
Provedor de dados: 5
Autores: Hagen, E; Zulicke, C; Feistel, R.
A meso-scale CTD survey was conducted off Cape Ghir (31 degrees N) from 29 September to 3 October 1992, with the inspection of mass-field structures in the 300 dbar layer as its main objective, and relatively large tongue of cold surface water as the subject of investigation. This filament of upwelled water extends about 200 km seaward from the coastal zone of Morocco. Our CTD survey included two zonal transects 213 km in length, sampled synchronously by R/Vs Hudson along 31 degrees 30' N and A. v.Humboldt along 30 degrees 30' N. A meridional section followed the shelf edge at 10 degrees 10' W, and five zigzag sections were carried out above the Cape Ghir Plateau (CGP). Data resulting from an extended transect, sampled ten days earlier between 9 degrees...
Tipo: Text
Palavras-chave: Coastal upwelling; Filament; Northwest Africa; Water mass; Eddy.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20728/18365.pdf

Rickettsia-like organism infecting juvenile sea-bass Dicentrarchus labrax
Provedor de dados: 5
Autores: Comps, Michel; Raymond, J. C.; Plassiart, G. N.
High levels of mortalities (20%) associated with abnormal swimming have been observed in farmed juveniles of seabass, Dicentrarchus labrax, in Mediterranean coast, southern France. Histopathology was obvious in the brain with nervOUS tissue necrosis and the presence of ceUs containing basophilic granules corresponding to smaU coccoid organisms. Ultrastructural examination revealed these organisms were rickettsia-like organisms morphologicaUy close to Piscirickettsia salmonis
Tipo: Text
Palavras-chave: Pathology; Dicentrarchus labrax; Sea Bass; Rickettsia like.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-6158.PDF

Distribution of echinoderm larval populations in the geostrophic frontal jet of the eastern Alboran Sea
Provedor de dados: 5
Autores: Pedrotti, Ml; Fenaux, L.
A survey of-selected echinoderm larvae and postlarvae was conducted during Almofront-1 cruise in the eastern Alboran Sea (Mediterranean Sea). In the study zone, surface waters from the Atlantic current enter via Gibraltar forming a hydrologically complex area with associated eddies and gyres. The distribution pattern of echinoderm larvae is described and related to specific biological and physical frontal processes responsible for larval retention or dispersal. In the part of Alboran Sea, influenced by Mediterranean waters, echinoderm larvae and postlarvae were quite scarce in comparison to the stations localised in the Atlantic jet and sites under influence of Atlantic waters where species richness and larval abundance were higher. The Anticyclonic gyre...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20494/18163.pdf

Etude des potentialités conchylicoles du Pertuis Breton. Proposition d'étude. Suite aux réunions de la commission de contrôle des filières du 6 juin 1995 et du 10 avril 1996
Provedor de dados: 5
Autores: Goulletquer, Philippe; Heral, Maurice.
Le développement de la mytiliculture dans un bassin conchylicole peut aboutir à la surexploitation du site avec des conséquences néfastes pour les populations en cours d'exploitation. Pour cette raison, il est particulièrement important de développer un plan d'aménagement de bassins tels que le Pertuis Breton considérant l'ensemble des utilisateurs de cet espace. A moyen terme, le développement d'un modèle mathématique est l'outil plus approprié pour tester et valider les différents schémas d'aménagement, permettant ainsi de limiter l'impact sur l'existant. Pour un tel modèle, une parfaite connaissance des caractéristiques biologiques et physico- chimiques du milieu est nécessaire. Au délà de la biomasse en élevage, sa répartition spatiale, ses besoins...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00406/51771/52369.pdf

The consequences of broadcasting, brooding, and asexual reproduction in echinoderm metapopulations
Provedor de dados: 5
Autores: Ebert, Ta.
Different modes of reproduction were examined in the context of entire life cycles for seven starfish species so that adult survival could be compared with reproductive output and first year survival. Data were assembled from the literature and included two asexual species, Linckia multifora and Nepanthia belcheri; two brooders, Asterina phylactica acid Leptasterias hexactis; one species with benthic eggs that does not brood, Asterina gibbosa; one species with lecithotrophic development in the plankton, Patiriella pseudoexigua; and one planktotrophic species, Pisaster ochraceus. A negative correlation was found between first-year survival and adult survival rates which also correlated with mode of reproduction: highest adult survival and lowest first-year...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20480/18150.pdf

Surveillance écologique et halieutique du site de Flamanville. Année 1995
Provedor de dados: 5
Autores: Dreves, Luc; Martin, Jocelyne; Erard-le Denn, Evelyne; Lunven, Michel; Miossec, Dominique; Quintin, Jean-yves.
Monitoring n°13 of the FLAMANVILLE nuclear power plant takes into account studies conducted between March and September 1995. Hydrology microbiology, phytoplankto~ zooplankto~ f1shing, intertidal phytobenthos and zoobenthos are reported. This power plant is in operation for ten years. [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: Monitoring; Power plant; Pelagos; Fishing; Benthos; Surveillance; Pelagos; Halieutique; Centrale nucléaire; Benthos.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-6827.pdf

Le réseau de pathologie des mollusques. REPAMO
Provedor de dados: 5
Autores: Grizel, Henri.
The creation of a mollusc pathology network was in effect and made official during 1992. The subject of this document is to present this network, which has not yet achieved its definitive size.  Why this network?  The creation of this network responds to several institutional and scientific needs. Indeed, the setting up of control measures aimed at regulating mollusc exchanges notably via European Directive 91/67 and its transcription into French law has, as a corollary, caused the recognition of IFREMER as the agency charged with performing the analyses necessary for responding to the needs of this Directive, as far as marine invertebrates are concerned. Moreover, France being among the primary producers of shellfish in the world, the setting up of a...
Tipo: Text
Palavras-chave: Network; Pathology; Molluscs.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-1922.pdf

Suivi de la reproduction de l'huître creuse Crassostrea gigas dans la partie nord du Bassin Charentais (Sous-Section Ostréicole Nord-Charente - Sous-Section Ostréicole Vendée-Atlantique). Année 1996
Provedor de dados: 5
Autores: Fillon, Alain; Arnaud, Christophe; Thomas, Gerard.
Le littoral charentais-maritime présente, dans sa partie nord entre l'estuaire de la Charente et la limite nord du département (île de Ré comprise), plusieurs sites intéressant l'ostréiculture pour le captage de juvéniles, dont le centre réputé de Fouras.  Pour aider la profession, et selon son souhait, une assistance est fournie par I'IFREMER qui recherche les périodes d'émission de larves d'huîtres creuses afin d'informer les ostréiculteurs des époques les plus propices au captage.  En 1996, ce travail a fait partie des actions contractualisées entre la SRC RE-CENTRE-OUEST et I'IFREMER (action confiée au laboratoire côtier DEL de La Rochelle).  Le présent rapport expose les différents aspects de ce travail et notamment rassemble et synthétise les...
Tipo: Text
Palavras-chave: Reproduction; Pêche larves; Huîtres creuses; Crassostrea gigas; Charente.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00139/25007/23111.pdf

Identification et quantification des pigments chlorophylliens et caroténoïdes des sédiments marins : un protocole d'analyse par HPLC
Provedor de dados: 5
Autores: Brotas, V; Plantecuny, Mr.
A HPLC protocol is described which permits analysis of the pigment composition of coastal and intertidal sediments. The HPLC technique has been extensively applied to phytoplankton pigments for fifteen years. Papers dealing with living benthic microphytic populations have been more rare, due to complexity existing in the sediment surface, where pigments (chlorophylls and carotenoids) from several taxonomic groups of microalgae are mixed with degraded pigments from senescent phytoplankton cells and macrophytic material. The present paper describes in detail a protocol adapted from Kraay et al. (1992), which allows a good discrimination of photosynthetic pigments of microphytobenthos communities. The following procedure is recommended. Sediment samples are...
Tipo: Text
Palavras-chave: Plants pigments; Sediments; Protocol; HPLC.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20730/18367.pdf

Note de synthèse des résultats obtenus concernant l'étude du virus de type herpès et la mise au point de méthodes de diagnostic de l'infection - Avril-Mai 1996
Provedor de dados: 5
Autores: Renault, Tristan; Lipart, Cecile; Le Deuff, Rose-marie; Chollet, Bruno; Haffner, Philippe.
Cette note de synthèse des travaux réalisés au laboratoire de Génétique, Aquaculture et Pathologie de la station IFREMER de La Tremblade dans le cadre de l'étude du virus de type herpès et de la mise au point de méthodes de diagnostic fait suite à la précédente note du 16 avril 1996. Les résultats obtenus concernant les analyses protocolaires et hors protocoles, ainsi que les résultats expérimentaux déjà disponibles sont donnés et commentés en sept points. 1- Analyses Pays de Loire 2 - Bilan des analyses réalisées dans le cadre du protocole IFREMER BOUIN/IFREMER ARGENTON/SODABO 3 - Bilan global des analyses Pays de Loire et Bouin-Argenton-SODABO 4 - Analyses effectuées en PCR pour la recherche de virus de type herpès sur des lots prélevés en 1996, dans le...
Tipo: Text
Palavras-chave: Pathologie; Virus; Herpès virus; Diagnostic; Huître creuse; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00044/15499/12867.pdf

Vertical structure of the current field in the Northern Black Sea
Provedor de dados: 5
Autores: Bulgakov, Sn; Kushnir, Vm.
A possible three-layer vertical structure of the horizontal circulation in the Black Sea was inferred on the basis of theoretical analysis and laboratory tests (Bulgakov et al., 1993 a, b). The existence of an unknown anticyclonic counter-current at the main pycnocline depths (100-400 m) under the surface cyclonic Main Black Sea Rim current was predicted. It may have a horizontal scale of the order of the Rossby deformation radius (10-20 miles), with maximum velocity of about 0.20-0.25 m/s. To investigate the vertical structure of the current field, special field observations using an OLT acoustic profiler and mooring stations were carried out in autumn 1993 in the Northern Black Sea. The anticyclonic flow with the predicted characteristics was observed...
Tipo: Text
Palavras-chave: Black Sea circulation; Cyclonic current; Anticyclonic counter-current.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20721/18358.pdf

Analysis of dissolved gases by headspace sampling gas chromatography with column and detector switching. Preliminary results
Provedor de dados: 5
Autores: Sarradin, Pierre-marie; Caprais, Jean-claude.
This preliminary study presents a new method for the determination of dissolved gases in sea-water. After headspace extraction, gaseous compounds are separated by GC on a dual column adsorption system, The individual species are thereafter eluted to three different detectors (thermal conductivity, flame ionization and FPD) using a second switching valve, The analysis is quantitative for methane and carbon dioxide with limits of determination of 0.1 and 50 mu mol l(-1), respectively, and corresponding standard deviations of 4 and 7%, and has been applied to deep sea hydrothermal samples, Further optimization is necessary to allow the quantitative determination of hydrogen sulfide, nitrogen, oxygen and carbon monoxide.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00186/29766/28198.pdf

Appearance and spread of diseases among bivalve molluscs in the northern hemisphere in relation to international trade
Provedor de dados: 5
Autores: Renault, Tristan.
Bivalve mollusc culture is a well-developed marine aquaculture activity in many countries around the world, notably in the northern hemisphere. During the development of this activity, numerous countries have been confronted with infectious diseases of varying severity and duration. Research has been conducted to determine the aetiology, epidemiology and control measures for these epizootics. Major epizootics in bivalve molluscs have been caused by viruses, bacteria, fungi and protozoan parasites. Moreover, important commercial relations exist in marine mollusc culture between different geographical areas. This must be taken into account in explaining the appearance and the spread of some infectious diseases in several countries around the world. The...
Tipo: Text
Palavras-chave: Northern hemisphere; International trade; Infectious diseases; Bivalve molluscs; Mollusques bivalves; Maladies infectieuses; Hémisphère Nord; Commerce internatioanal.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-2913.pdf

Detection of a mollicute-like organism in kuruma shrimp, Penaeus japonicus
Provedor de dados: 5
Autores: Choi, Dong-lim; Park, Myoung-ae; Sohn, Sang-gyu; Heo, Moon-soo; Renault, Tristan.
A filamentous form of mollicute-like bacterium was detected during a routine health survey of wild adult kuruma shrimp Penaeus japonicus. The kuruma shrimp were native to Japan and were imported to Korea. The histology showed no pathological changes. Transmission electron microscopy revealed extensive infections of hepatopancreatic epithelial cells by a pleomorphic, filamentous intracellular bacterium. The filamentous bacterium was of about 60 nm in diameter and 300 nm to more than 1µm in length. The morphology of bacteria were filamentous and branched with terminal blebs, or knobs, on the branches. They lacked the cell wall, and were bounded by the plasma membrane. They contained typical prokaryotic ribosomes and fibrillar DNA-like strands. No additional...
Tipo: Text
Palavras-chave: Transmission electron microscopy; Hepatopancreas; Mollicute; Intracellular bacteria; Penaeus japonicus.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-2901.pdf

Study yields surprises about seafloor spreading in back-arc basins
Provedor de dados: 5
Autores: Ruellan, Etienne; Lagabrielle, Yves; Tanahashi, Manabu; The Shipboard Party,.
A study of the seafloor in the North Fiji Basin is leading to a better understanding of the geometry and evolution of spreading in back‐arc basins. Two of the most important features of the area, the South Pandora Ridge and the Tripartite Ridge, belong to a presently active spreading system that began forming at least 7.2 m.y.a. The ridges spread at an average rate of about 1.6 cm/yr. By studying the segments of the ridges in greater detail, researchers found that each was either a “tectonic type,” with a more or less complex deep axial valley, or a “volcanic type,” with a high, rifted volcanic massif occupying the axial domain.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00451/56266/57837.pdf

Suivi régional des nutriments sur le littoral Nord/Pas-De-Calais/Picardie - Bilan 1995
Provedor de dados: 5
Autores: Delignieres, Grégory; Hitier, Benoist; Olivesi, Rene; Delesmont, Régis; Morel, Marc; Loquet, Nicolas.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00081/19204/16799.pdf

Atlas thématique de l'environnement marin en baie de Saint-Brieuc (Côtes-d'Armor)
Provedor de dados: 5
Autores: Augris, Claude; Hamon, Dominique.
This atlas presents in a synthetic form the hydrodynamical, geological and biological characteristics of one of the most studied region of the French littoral. Geologic and geophysical data of the Saint-Brieuc Bay show that the deep basement consists of pre-palaeozoic or palaeozoic sedimentary series in the centre of the Bay, whereas metamorphic and magmatic formations are dominant in coastal regions. The location of superficial sediments in the Bay, is mainly due to marine currents. A granulometric gradient, from very fine to coarse sediments, appears in two directions: from the coast towards the high sea, and from the west to the east. Rocky substrates disrupt the sediment distribution, with, most of the time, a concentration of coarse sediments near the...
Tipo: Text
Palavras-chave: Atlas; Bathymetry; Bottom topography; Commercial species; Geomorphology; Hydrodynamics; Marine resources; Sediment analysis; Sedimentary basins; Zoobenthos.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00031/14246/11527.pdf

When discards survive: Accounting for survival of discards in fisheries assessments
Provedor de dados: 5
Autores: Mesnil, Benoit.
When discards data are included in fish stock assessments, it is generally assumed that all discarded animals die. However, there are fisheries in which a significant fraction of discards are able to survive. This case can be treated with a simple extension of the usual analytical model of exploited populations, enabling Virtual Population Analysis (VPA) to be used for parameter estimation. The paper examines the effects on estimates obtained by VPA when discards are allowed to survive, and validates a procedure for deriving partial fishing mortalities in multiple-fleet fisheries where discarding and survival rates are fleet specific.
Tipo: Text
Palavras-chave: Évaluations de stocks; Rejets; Analyses de cohortes; Pêcheries multi-métiers; Stock assessment; Discards; Virtual Population Analysis; Multiple-fleet fisheries.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00179/29032/27466.pdf

Le Scléractiniaire Dendrophyllia cornigera en eau peu profonde, à Ouessant (Bretagne, Atlantique NE) en l'absence de barrière thermique
Provedor de dados: 5
Autores: Castricfey, A.
During a diving survey at Ushant island, the Scleractinian Dendrophyllia cornigera (Lamarck) was discovered at a depth of 30 m, below the laminarian zone. This is the shallowest record at present of this species, which is better known from the rocky bottoms between 200 and 500 m. Conditions favouring this occurrence in shallow water, as well as the occurrence of the species around 60-90 m in other coastal sites (Sein, Audierne, Penmarc'h, Glenan, Belle-Ile, Vigo), are examined, with special reference to temperature. D. cornigera tolerates temperatures ranging from 8 degrees C at its northern limit in the SW of Ireland, to 14 degrees C at its southern limit, in the Cape Verde Islands. Within its entire distribution range, the species displays some...
Tipo: Text
Palavras-chave: Dendrophyllia cornigera; Sublittoral; Rocky bottom; Benthic communities; North east Atlantic.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20734/18371.pdf

Comparison of methods for stock assessment of European hake Merluccius merluccius in the Gulf of Lions (Northwestern mediterranean)
Provedor de dados: 5
Autores: Aldebert, Yvonne; Recasens, Laura.
European hake Merluccius merluccius is the main commercial demersal species in the Gulf of Lions (Northwestern Mediterranean). This fish is exploited by French and Spanish trawler fleets and by small-scale fisheries using gillnets and longlines. Data on landings and the demography of catches by type of gear are now available for the period 1988-1991. The assessment of the hake stock was carried out using methods of virtual population analysis (VPA), or cohort analysis, based respectively on mean pseudocohorts and cohorts by age. The results of these VPA were then analysed and compared from a methodological point of view. The general results have confirmed previous studies with regard to the level of exploitation of the species. The two methods gave quite...
Tipo: Text
Palavras-chave: Merluccius merluccius; Méditerranée; Méthodologie; Évaluation des stocks; Démographie des captures; Mortalité par pêche; Merluccius merluccius; Mediterranean Sea; Methodology; Stock assessment; Population structure; Fishing mortality.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00188/29886/28341.pdf

Expériences sur l'influence des sédiments du bassin d'élevage sur la physiologie de Penaeus stylirostris. Rapport des travaux menés du 26 novembre au 7 décembre 1955 à la Station Saint Vincent
Provedor de dados: 5
Autores: Cochard, Jean-claude; Goarant, Cyrille; Boglio, Eric; Lemonnier, Hugues.
The influence of the soil quality of culture pond on the physiological state of Penaeus stylirostris reared in earthen shrimp pond in New Caledonia was investigated by the measurement of the osmoregulatory capacity and magnesium hemolymph concentration of samples of 20 of these shrimp captured in the pond and maintained for 24 or 48h in cages laid on the bottom. A first experiment was affected by the occurrence of a pathology caused by Vibrio penaeicida probably due to initial handling stress. The second experiment showed that the osmoregulatory capacity is depresssed as a function of the soil quality : the more it is reduced the more the depression is important.
Tipo: Text
Palavras-chave: Crevettes; Penaeus; P. stylirostris; Nouvelle Calédonie; Capacité osmorégulatrice; Stress; Sédiment; Shrimp culture; Penaeus; P. stylirostris; New Caledonia; Osmoregulatory capacity; Stess; Soil.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00426/53779/54664.pdf

The potential for ontogenetic vertical migration by larvae of bathyal echinoderms
Provedor de dados: 5
Autores: Young, Cm; Devin, Mg; Jaeckle, Wb; Ekaratne, Suk; George, Sb.
Planktotrophy is a relatively common developmental mode among bathyal and abyssal echinoderms, but the sources of food used by deep-sea planktotrophic larvae remain generally unknown. Very few deep-sea echinoderm larvae have been collected in plankton samples, so we do not know whether larvae migrate to the euphotic zone to feed or if they rely on bacteria or detritus at greater depths. We approached this question indirectly by investigating whether larvae of bathyal echinoids can tolerate the temperatures they would encounter in the euphotic zone and whether they possess sufficient energy stores to migrate to the euphotic zone without feeding. Twenty-four hour survival at 20 and 24 degrees C was always much lower than survival at colder temperatures, but...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20485/18155.pdf

Genetic bases and variability of physiological traits involved in growth in Crassostrea gigas - First Progress Report 1st January-31st December 1996 - Contract n° FAIR 95-421 Commission of the European Communities
Provedor de dados: 5
Autores: Gerard, Andre; Boudry, Pierre; Bougrier, Serge; Hawkins, A. J. S.; Thiriot Quievreux, Catherine; Wilkinns, N. P.; Zouros, Eleftherios; Bonhomme, Francois.
The EEC project "Genephys 1996-2000", initiated by the IFREMER laboratory GAP (Génetique, Aquaculture et Pathologie, La Tremblade and CREMA (Centre de Recherche en Ecologie Marine et Aquaculture, l'Houmeau), aims to establish the relationships between physiological traits involved in growth (oxygen consumption, absorption efficiency, scope for growth) and their genetic bases (determinism, variability within and among populations) in cupped oyster Crassostrea gigas. The main objectives are: 1- To express the maximum variability of growth, both at the larval stage and at the adult stage, in an oyster population originating from parents of various origins. 2- To check the persistence over the time, of growth performance and related physiological functions. 3-...
Tipo: Text
Palavras-chave: Genetic; Determinism; Variability; Physilogy; Oxygen consumption; Absorption efficiency; Growth; Oysters; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00050/16149/13632.pdf

First rearing attempts of pollack, Pollachius pollachius
Provedor de dados: 5
Autores: Suquet, Marc; Petton, Bruno; Normant, Yvon; Dosdat, Antoine; Gaignon, Jean-louis.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00188/29888/28339.pdf

Herpesvirus observé chez les huîtres - Résultats août 1995/avril 1996
Provedor de dados: 5
Autores: Renault, Tristan.
Les travaux concernant le virus de type herpès, observé chez les huîtres, ont été poursuivis en 1995-1996 et ont ainsi permis d'aboutir à la mise au point d'un protocole de purification du virus, malgré l'ensemble des difficultés rencontrées (impossibilité de reproduire le virus sur lignées cellulaires, dépendance vis à vis des professionnels pour l'approvisionnement en matériel infecté et difficulté de planifier les expériences). De ce fait, le point de blocage que représentait l'obtention de particules virales en nombre suffisant pour le développement d'outils de diagnostic fiables et sensibles a été levé.
Tipo: Text
Palavras-chave: Herpès virus; Pathologie; Virus; Mortalité; Huître creuse; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00050/16153/13636.pdf

Feeding and absorption in Cerastoderma edule under environmental conditions in the Bay of Marennes-Oleron (Western France)
Provedor de dados: 5
Autores: Urrutia, Mb; Iglesias, Jip; Navarro, E; Prou, Jean.
Physiological processes involved in energy acquisition by the filter-feeding bivalve Cerastoderma edule (L.) (Mollusca: Bivalvia) were quantified under naturally fluctuating feeding conditions imposed by tidal cycles in the Bay of Marennes-Oleron. Physiological measurements were performed during two neap and two spring tidal cycles in order to cover a wide range of seston concentrations (TPM = 15-95 mg l super(-1)). The main effect exerted by tides on the food supply was the resuspension of bottom sediments of low organic content, leading to a strong 'dilution' of suspended organic matter. Although filtration rate was found to increase with seston concentration, ingestion rate was strictly regulated by means of pseudofaeces production. Selection...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-3837.PDF

Biological sampling of non-quota species.
Provedor de dados: 5
Autores: Dunn, M. R.; Rogers, S. I.; Morizur, Yvon; Tetard, Alain; Aublet, B; Le Niliot, Ph; Miossec, Dominique.
The objective of this study was to develop an effective biological sampling programme for fish species in the English Channel (ICES Divisions Vild and Vile) which are not subject to quota management, and to prepare these data for use in multispecies, multi-fleet models being developed by the Channel Fisheries Study Group. Length and age data were coIlected for six non-quota species, and length data for a further five species. The samples were coIlected over a period of two years from important ports on the French and UK coasts. The exploitation patterns of each species were described by allocating catches from similar catching gears, regions, seasons and target species into common units referred to as métiers. The most important métiers in terms of landed...
Tipo: Text
Palavras-chave: Biological sampling; Commercial species; Exploitation; Fishery management.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00304/41514/40722.pdf

Déterminisme de la mortalité estivale de l'huître creuse, Crassostrea gigas, en condition d'élevage intensif
Provedor de dados: 5
Autores: Chiffoleau, Yann.
Intensive rearing techniques of pacific oyster, Crassostrea gigas, were optimized to obtain high growth rate, but during this time high summer mortalities were noted, especially for the past two years.  The aim of this study is to define the influences of three intensive rearing factors on growth rate and summer mortalities :  - temperature, - food ration, - intermittent immersion.  Thus we should be able to propose a new rearing strategy to maintain a good growth rate with a moderate mortality.  From may to september 1995, three experiments have been undertaken : two with seed oysters and one with adult oysters. According to the results obtained with seed, temperature seems to be the most important factor, followed by intermittent immersion and in thirdly...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00069/17977/15540.pdf

Campagne CITHER 3 N/O l'Atalante (11 janvier - 2 avril 1995). Recueil de données. Volume 2 : Données CTD-O2
Provedor de dados: 5
Autores: Arhan, Michel; Billant, Andre; Branellec, Pierre; Mercier, Herle; Groupe CITHER 3.
De mi-janvier à début avril 1995 s'est déroulée la campagne CITHER 3 du programme WOCE-France, dans le but d'étudier les écoulements aux frontières méridiennes du bassin Atlantique Sud-Est: à l'ouest les échanges avec les Bassins d'Argentine et du Brésil, et à l'est les écoulements le long du talus continental Africain. Les paramètres hydrologiques et géochimiques requis par le Programme Hydrologique de WOCE (WHP) ont été mesurés de la surface au fond à 242 stations situées le long de deux radiales, l'une à 9° W entre le talus continental Ivoirien et la latitude 45° S, l'autre de Cape Town à la position 40° S - 10° E, puis au talus continental Ghanéen. Ce rapport, qui est le deuxième volume de la série des recueils de données CITHER 3, présente les mesures...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00238/34919/33288.pdf

La pisciculture marine : un secteur industriel en émergence
Provedor de dados: 5
Autores: Paquotte, Philippe; Harache, Yves.
In a general context of low progression, European aquaculture has been characterized by the development of intensive fish farming. The most notable fact is the recent increase in intensive salmonid farming, with a turnover of almost two million ECU. More recently, the intensive farming of sea bass and sea bream has increased very rapidly in the Mediterranean Basin, although on a more reduced extent. Although research has started as soon as the seventies with a strong public incentive both for salmon, sea bass and sea bream, the development of these different types of aquaculture has not been done at the same pace. Some elements of sectorial dynamics are analysed such as research planning and financing, organization of the production and public policy. For...
Tipo: Text
Palavras-chave: Europe; Environmental protection; Economic development; Production structure markets; Saltwater fishes; Sea bream; Sea bass; Atlantic salmon; Marine environment; Fish culture; SEM; Europe; Protection de l'environnement; Développement économique; Marché; Structure de production; Poisson de mer; Dorade; Bar; Saumon atlantique; Milieu marin; Pisciculture.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-4104.pdf

Développement d'une méthodologie de qualification de l'espace côtier. Application à la Façade Méditerranéenne
Provedor de dados: 5
Autores: Denis, Jacques; Miossec, Laurence.
Le milieu littoral est soumis à une forte influence de la part du milieu terrestre. Sa qualité, dont la tendance est à la dégradation, est l'objet de fortes préoccupations suscitées par la nécessité d'une gestion plus rigoureuse de la ressource Eau, dans l'ensemble de la zone côtière. L'évaluation même de la qualité du milieu littoral devient un élément clé dans ce processus de gestion, dit de l'amont par l'aval et demande, pour ce faire, un outil adapté capable de satisfaire cette exigence. Cet outil consiste en une méthodologie d'approche de l'espace côtier. Elle est à la fois globale, pour son échelle d'application à la façade méditerranéenne entière et intégrée, pour la prise en compte d'un ensemble de facteurs influants sur la qualité résultante. La...
Tipo: Text
Palavras-chave: Gestion intégrée de la zone côtière; Zonation; Analyse multicritère; Qualité du milieu littoral; Système d'information sur l'environnement; Integrated Coastal Zone Management; Coastal Zoning; Multicriteria Analysis; Coastal Quality; Environmental Information System.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00132/24276/22274.pdf

Particle selection in the oyster Crassostrea gigas (Thunberg) studied by pigment HPLC analysis under natural food conditions
Provedor de dados: 5
Autores: Pastoureaud, Annie; Heral, Maurice; Prou, Jean; Razet, Daniel; Russu, Patricia.
Selective feeding in the adult oyster Crassostrea gigas was studied using natural particle assemblages in the estuarine environment of the Bassin de Marennes Oleron (France). Oysters were exposed to natural variations of suspended particulate matter by direct pumping of sea water from the bay during various tidal cycles. Experiments were conducted during the spring over both spring tides and neap tides, so as to obtain a maximum range of variation in seston characteristics, spring tide being characterized by very strong currents with high loads of resuspended materials (sediment, microphytobenthos and detritus). Particles were analysed for their chloropigment content by HPLC. The native pigments consisted exclusively of chlorophyll a and c, from both...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1995/publication-3085.pdf

Projet de recherche sur l'identification de nouveaux composés toxiques dans les coquillages
Provedor de dados: 5
Autores: Amzil, Zouher.
ln November 1992, an event affecting Shellfish health received extensive media coverage: an unknown toxin had been detected in oysters from the bay of MarennesOleron (France). This phenomenon remains unexplained to this day. Since then, a growing number of observations obtained in the context of the REPHY phytoplankton monitoring network, have reported a mouse-active substance found in Shellfish and belonging to none of the known phycotoxin classes. These observations have been reported in France as weil as abroad (Canada, Norway, Ireland, New Zealand ... ). Mice treated intraperitoneally with the DSP screening test- exhibit neurological symptoms with disorders of the central nervous system leading to early death (within 5 to 10 minutes). Several hundred...
Tipo: Text
Palavras-chave: Toxicité atypique; Test-souris; Neurotoxicité; Identification de principe(s) actif(s); Atypical toxicity; Mouse-test; Neurotoxicity; Identification of active principle( s).
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00156/26732/24813.pdf

Virus-like particles in the retina of the seabram, Sparus aurata
Provedor de dados: 5
Autores: Comps, Michel; Raymond, Jean-christophe.
Cytoplasmic virus-like particles showing important similarities with the fish nodaviruses particles were found in nervous cells of the retina of hatchery-reared larval sea bream.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00271/38250/36436.pdf

La biologie de la lamproie marine (Petromyzon marinus Linne 1758) de la côte atlantique française
Provedor de dados: 5
Autores: Grellier, Patrick.
Vertebrate Cyclostome, the european sea lamprey is a sea spawning migrator amphihaline species, which is a parasite during its growing phase at sea. After the spawning migration, lampreys couple in the upper reach of water courses, they lay their eggs, then die from physiological misery. The eggs develop sheltered into a nest until hatching of small larvae, the ammocoetes. Morphologically very different from the adults, the ammocoetes spend a several years sedentary life, being burried into the sediment. Then, they metamorphose into young lampreys which undertake their downstream migration. As soon as they enter sea water, they continue growing at the expense of several species of fishes.
Tipo: Text
Palavras-chave: Morphologie; Cycle Biologique; Migrations; Reproduction.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00085/19616/17256.pdf

Croissance et qualité de l'huître ceuse Crassostrea gigas dans le bassin de Thau (Hérault) : Résultats d'une étude réalisée en 1990-1991
Provedor de dados: 5
Autores: Pichot, Paul; Landrein, Sonia; Juge, Claude.
During years 1990-1991, a study was carried ouI in order to precise the relationship between sorne physiological features and the biochemical characteristics of dry flesh and hemolymf of oyster Crassostrea gigas, cultivated in the mediterranean lagoon of Thau. Growth rates and biochemical analysis for proteins, lipids and carbohydrates were estimated. The results of this study are given. They include many other data from a study on trophic relationships developed between 1985-1989.
Tipo: Text
Palavras-chave: Méditerranée; Etang de Thau; Crassostrea gigas; Croissance; Composition biochimique; Protides; Lipides; Glucides; Mediterranean; Lagoon of Thau; Crassostrea gigas; Growth; Biochemical composition; Proteins; Lipids; Carbohydrates.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00419/53031/53966.pdf

Etude bibliographique et synthèse des travaux et études relatifs aux étangs littoraux de la Corse
Provedor de dados: 5
Autores: Paulmier, Pierre.
Les étangs salés corses échelonnés le long de la côte orientale de cette île (Fig. 1), constituent aujourd'hui un des pôles d'intérêt en raison de leur situation géographique, de leur place dans l'économie actuelle de la Corse et des perspectives de développement industriel qu'ils représentent. Un grand nombre d'études et de travaux ont été réalisés pour servir à la connaissance de ces milieux et à leur mise en valeur. Toutefois ceux-ci sont encore insuffisants et il a dû être procédé par analogie pour en estimer les potentialités.  Dès l'époque romaine, la pêche était pratiquée dans l'étang de Diana qui servait également de port pour la région d'Aléria, ou divers produits dont du poisson et des huîtres conditionnées en saumure, étaient exportés vers le...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00072/18333/15900.pdf

Les échanges internationaux de crevettes pénéidés vivantes entre les pays du Pacifique, de l'Atlantique et de l'Europe
Provedor de dados: 5
Autores: Michel, Alain.
The tremendous development of penaeid shrimp culture across the world over the past twenty years has led to international trade in eggs, larvae and spawners of the best shrimp species for aquaculture. Trade has involved, in particular, the following species: - Penaeus japonicus from Japan to Europe, the Pacific Islands and South America - P. monodon from South-East Asia to almost all tropical countries - P. vannamei and P. stylirostris from countries along the Pacific coast of South and Central America to the United States of America, the islands of the South Pacific, countries along the Atlantic coast of the Americas and certain countries in Africa. In the 1980s, research conducted by American and French teams enabled the breeding of stocks of spawners in...
Tipo: Text
Palavras-chave: Aquatic animals; International trade; Pathogens; Penaeid shrimps; Species transfer.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00091/20231/17883.pdf

Effets de l'assèchement des bassins ostréicoles sur le cycle biogéochimique de nutriments azotés: ammonification préférentielle
Provedor de dados: 5
Autores: Gouleau, Dominique; Feuillet-girard, Michelle; Germaneau, James; Robert, Serge.
Oyster ponds behave as organic matter accumulators, unlike wetlands which export a large part of their natural productivity towards the ocean as well as inorganic nitrogen towards the atmosphere through denitrification. Thus, to prevent eutrophication temporary drying-out is necessary, the physical effects of which are weIl known but who se biogeochemical processes are still poorly documented. The aim of the present study was to perform a drying -out operation in an oyster pond, and to describe the modifications which occurred within the nitrogen cycle: i.e. mineralization processes within the top 5 cm of the sediment; changes in nutrient pore-water concentrations; and fluxes through the water/sediment interface. Prior to the operation, ammonia was the...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00017/12789/9730.pdf

Compte rendu des essais de pêche du Laminaria hyperborea
Provedor de dados: 5
Autores: Arzel, Pierre; Mingant, Christian; Noel, Philippe; Gourronc, Eugene.
Introduction  During the month of April 1994, the "Ressources Halieutiques de l'Ifremer" laboratory (Ifremer Halieutic Resources) in Brest tested tools to be used for the harvesting of Laminaria hyperborea as requested by Système Bio-Industries. The first results of this trial campaign are as follows: The tools are effective as far as interspecific as well as intraspecific selectivity. Rightly so, Laminaria hyperborea accounts for nearly 100% of the harvest. We also noticed that only large size plants are harvested, commercial harvest is satisfactory in terms of yield. However insufficiencies still remain. Comb efficiency is low, since the actual harvest only represents 10 to 12% of the stipes collected when the machine goes through.  This low efficiency...
Tipo: Text
Palavras-chave: Oceanographical campagne; Seaweed; Laminaria hyperborea; Fishing; Campagne océanographique; Algue; Laminaria hyperborea; Pêche.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-1651.pdf

Noms vernaculaires des espèces marines en usage à Arcachon, en Gironde et dans les Landes, de 1727 à nos jours
Provedor de dados: 5
Autores: Quero, Jean-claude.
L’identification des espèces marines mentionnées dans les textes anciens, en particulier dans ceux publiés avant 1758, année de la parution de la nomenclature scientifique binominale de Linné, n'est pas aisée. Le plus souvent, les appellations citées sont propres à chaque région, voire à chaque port, parfois à chaque village. Nous nous sommes trouvés confrontés à ce problème au cours d'une étude effectuée avec l'aide financière de la Commission des Communautés Européennes, concernant l'impact des activités humaines sur la faune marine de la région d'Arcachon. Notre premier travail a été, pour chaque nom vernaculaire, de déterminer l'espèce, ou le genre, voire la famille, auquel il faut l'attribuer, ceci par recoupement des indications fournies par les...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00250/36080/34631.pdf

Suivi de l'eutrophisation en Baie de Douarnenez - Estimation de la biomasse en algues vertes (Mission réalisée le 1° aout 1996)
Provedor de dados: 5
La mission menée dans le cadre du programme concernant le suivi de l'eutrophisation en baie de Douarnenez s'est déroulée le 1er août 1996. Ce travail fait partie d'un programme de lutte contre les marées vertes, coordonné par l'IFREMER et le CEMAGREF dans le cadre du Contrat de Plan Etat-Région et intitulé : Bassins versants et transmission des pollutions au littoral. Cette mission comprenant les prises de vues aériennes et les échantillonnages de terrain s'est déroulée lors d'un coefficient de marée de 113. Les prises de vues aériennes ont été réalisées au moment de la basse mer à Douarnenez soit à 13 h 10 (UT + 2 h). La hauteur d'eau à basse mer était de 0,96 m au dessus du " zéro CM " (zéro des Cartes Marines encore appelé zéro hydrographique)....
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00104/21482/19063.pdf

Etude des stocks halieutiques de langoustes au Cap Vert et proposition de modalités de gestion de ces stocks - Rapport de mission 5 au 15 décembre 1996
Provedor de dados: 5
Autores: Latrouite, Daniel.
Cette mission s'inscrit en exécution de la Convention franco-capverdienne "Appui aux filières productives primaires au Cap Vert", composante 03 Pêche", financée par le Fond d'Aide et de Coopération (Convention n° 95005500 du 17 janvier 1996). Elle a été réalisée conformément aux termes du protocole n°96/1212642/F entre la Mission Française de Coopération et d'Action Culturelle à Praïa et l'Institut Français de Recherche pour l'Exploitation de la Mer. Elle constitue la prestation "mission d'expert Ifremer au Cap Vert" prévue pour l'année 1996.  Elle avait pour objectifs particuliers:  - dans le cadre de la Réunion sur l'Investigation et la Gestion Halieutique au Cap Vert, établir et présenter un point sur les ressources en langoustes, leur exploitation et...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00069/17980/15508.pdf

Dynamique sédimentaire des Pertuis charentais
Provedor de dados: 5
Autores: Schillinger, Sandrine.
L'intérêt sédimentologique porté aux Pertuis charentais fut important aux débuts des années 70 puis abandonné par la suite. Une étude complète sur les Pertuis charentais a été réalisée par Barusseau J.P. (1973) sur les processus sédimentaires et Hily C. (1976) sur l'aspect écologie benthique. André X. (1986) s'est lui chargé de la reconstitution paléogéographique. Les seules études menées depuis concernent la myticulture et la conchyliculture. La campagne PLACETA réaliséé en Juin 1995 à bord du N/0 Thalia a permis une nouvelle étude de cet environnement sédimentaire et la mise en oeuvre de nouveaux outils d'investigation tels que le sondeur multifaisceaux SIMRAD EM 950. Il m'a été confié le dépouillement des données sonar, multifaisceaux et quelques...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00448/55954/57432.pdf

Premier signalement en Atlantique Nord-Est, d'Aluterus monoceros (Tetraodontiformes, monacanthidae)
Provedor de dados: 5
Autores: Quero, Jean-claude; Laborde, Jean-louis.
Tipo: Text
Palavras-chave: First record; ANE; Aluterus monoceros; Monacanthidae.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-3792.pdf

Change from planktonic to benthic development: Is Life cycle evolution an adaptive answer to the constraints of dispersal?
Provedor de dados: 5
Autores: Bhaud, M; Duchene, Jc.
Current research on recruitment of benthic marine invertebrates is, to a large extent, concerned with the consequences of larval planktonic development in water masses entailing dispersal, a milieu which appears unfavourable for a successful recruitment. In this paper, the origin of benthic development is tentatively considered as a response to the constraints of dispersal. Examples among annelid polychaetes are taken from personal work and from the literature. i) Life cycles in the subantarctic area provide good indications of a correlation between direct development and environmental pressure enhancing dispersal (due to turbulence and advection which would carry the planktonic larvae away from a suitable habitat). ii) Experimental analysis of the life...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20491/18161.pdf

Les rejets générés par les établissements conchylicoles en Basse-Normandie - Evaluation et essais d'optimisation
Provedor de dados: 5
La conchyliculture occupe une place non négligeable dans l'économie de la Basse-Normandie ; elle compte sur la région environ 3 000 emplois directs (en équivalent temps plein). En 30 ans, la Basse-Normandie est devenue le premier bassin français producteur de coquillages : 43 000 tonnes d'huîtres et 14 000 tonnes de moules de bouchots y ont été produites en 1995. Ce développement important a nécessité l'implantation d'ateliers conchylicoles, iSolés ou regroupés dans des bases à terre, permettant le lavage, le stockage, le conditionnement ... des coquillages. L'évolution de la réglementation, et notamment la parution de la directive européenne du 15 juillet 1991 fixant les règles sanitaires régissant la production et la mise sur le marché de mollusques...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00106/21678/19257.pdf

Campagne PACANTARCTIC. N/O L'Atalante du 6 janvier 1996 au 20 février 1996, de Nouméa à Nouméa. Rapport de mission
Provedor de dados: 5
Autores: Ifremer.
La campagne Pacantarctic a été financée et soutenue par l'Institut Français de Recherche pour l'Exploitation de la Mer (Ifremer). Nous remercions chaleureusement tous ceux qui, tant à l'intérieur qu'à l'extérieur de l'lfremer, ont soutenu le projet Pacantarctic et permis le déroulement de la campagne. Nous remercions également tout le personnel de Genavir qui, tant à terre qu'en mer, s'est investi pour assurer la bonne marclie des opérations. Sur le plan scientifique, la campagne est, à l'échelle nationale, le fruit d'une collaboration entreprise avec l'Université de Bretagne Occidentale, le CNRS et l'Institut de Physique du Globe de Paris dans le cadre du programme DORSALES. A l'échelle internationale, il s'agit d'une collaboration impliquant des...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00408/51992/52652.pdf

The ocean-continent boundary off the western continental margin of Iberia: Crustal structure west of Galicia Bank
Provedor de dados: 5
Autores: Whitmarsh, Robert B; White, Robert S; Horsefield, Susan J; Sibuet, Jean-claude; Recq, Maurice; Louvel, Veronique.
A seismic refraction transect across the Galicia Bank continental margin shows that the original continental crust thins westward from 17 to 2 km immediately east of a margin-parallel peridotite ridge (PR). immediately west of the PR, oceanic crust is only 2.5-3.5 km thick, but farther west (oceanward) it thickens to 7 km. The PR caps a similar to 60-km-wide lens-shaped serpentinized peridotite body underlying both thinned continental and thin oceanic crust. When superimposed on a reflection time version of the velocity model, the S reflector is clearly intracrustal at its east end. Westward, S cuts down to lower crustal levels, eventually coinciding with the top of the serpentinized peridotite lens (original crust-mantle boundary). These observations...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00281/39255/43277.pdf

Diversity of energetic strategies among echinoid larvae and the transition from feeding to nonfeeding development
Provedor de dados: 5
Autores: Herrera, Jc; Mcweeney, Sk; Mcedward, Lr.
Our current work investigates a major ecological transition in echinoderm life cycles: the evolution from planktotrophic to lecithotrophic larval development. We have discovered a wide range of feeding requirements among subtropical echinoid larvae. Differences in maternal investment determine how much external food is required to build the larval body and subsequently the juvenile rudiment. There appears to be a continuum of nutritional strategies between extreme obligate planktotrophy and functional lecithotrophy (i.e. facultative planktotrophy). We suggest that the ecological boundary between planktotrophy and lecithotrophy is easily crossed and that unlike morphological changes, ecological transitions, are readily reversible.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20489/18159.pdf

Analyse économique d'une nouvelle technique d'élevage de crevettes en cages flottantes au Brésil
Provedor de dados: 5
Autores: Paquotte, Philippe.
In the framework of French-Brazil co-operation, the French Institute of research for exploitation of the sea (IFREMER), the State of Bahia and the company Littoral Sul Maricultura have developed a new technique for shrimp farming (Penaeus vannamei) using floating cages. After trials carried out during three years, this technique turns out very interesting from several viewpoints. The growth speed and the survival rate are very good, the negative effects on the environmental quality are weak and local fishermen have proved eager to adopt this technique as a part-time activity. In the same time, a technico-economic analysis, using a computerised simulation tool, as well as a market analysis in the State of Bahia have been carried out in order to assess the...
Tipo: Text
Palavras-chave: SEM.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/acte-4071.pdf

Mortality rates of juvenile starfish Acanthaster planci and Nardoa spp measured on the Great Barrier Reef, Australia and in Okinawa, Japan
Provedor de dados: 5
Autores: Keesing, Jk; Wiedermeyer, Wl; Okaji, K; Halford, Ar; Hall, Kc; Cartwright, Cm.
Acanthaster planci (L.) and Nardoa novaecaladoniae (Perrier, 1875) are two coral reef asteroids having planktotrophic and lecithotrophic larval development, respectively. Comparative sizes at metamorphosis are 0.5 to 0.7 mm for A. planci and 1.2 to 1.6 mm for N. novaecaladonine. Mortality rates of small juveniles (one month old) of each species were measured experimentally in the field on the Great Barrier Reef, Australia. Mortality rates of N. novaecaladoniae were low (1.5 %.d(-1)) compared to 7.8 %.d(-1) for A. planci. Survival of the two species was similar between habitats. However, mortality rates of A. planci were highly variable both within-sites and between-sites within-habitats (fore reef 15 m depth, reef flat 2 m and back reef lagoon 12 m). There...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20500/18169.pdf

Rapport de mission Croatie. 26 novembre-29 novembre 1996
Provedor de dados: 5
Autores: Heral, Maurice; Prou, Jean.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00389/50085/50677.pdf

Crustaces profonds captures aux casiers aux Antilles françaises - 1996
Provedor de dados: 5
Autores: Paulmier, Gerard.
For several years the fishermen of the West Indies have directed their activities towards new fishing grounds, notably the bathyales zones adjacent to island plateaux up to approximately 1000 metres in depth. Explorations carried out since 1989 have shown that diverse crustacean populations could be exploited. However, populations and exploitable stocks are not well known. The use of crustaceans traps as a fishing technique permits the capture of shellfish, shrimps and prawns of which at least six species could have commercial interest. The main objective of this work is do draw up an inventory of the principal commercial species as well as the accompanying species belonging to the subordres Decapoda macrura, anomura, brachyura and to the orders Isopoda...
Tipo: Text
Palavras-chave: Crab; Prawn; Shrimp; Depth; Crustaceas; Inventory; French Antillean; Crabe; Langoustine; Crevette; Profond; Crustace; Inventaire; Antilles françaises.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-1543.pdf

A la recherche de l'huître portuguaise: identification de marqueurs moléculaires discriminant Crassostrea angulata et Crassostrea gigas
Provedor de dados: 5
Autores: Cornette, Florence.
L'étude historique de l'ostréiculture française monte que cette activité est caractérisée par des périodes de prospérités et de pénurie. Des épizooties ont été à l'origine de ces alternances. A chacune de ces période, on a pu constater des changements d'espèces : Ostrea edulis fut remplacée par Crassostrea angulata, de même celle-ci fut remplacée par Crassostrea gigas dans les années 1970. L'étude de la bibliographie montre que les techniques utilisées pour distinguer des espèces Crassostrea angulata et Crassostrea gigas sont insuffisantes. L'évolution des technologies en matière d'analyses génétiques ouvrent de nouvelles perspectives. La recherche de marqueurs moléculaires réalisée sur Crassostrea angulata et Crassostrea gigas, par amplification par PCR...
Tipo: Text
Palavras-chave: Crassostrea angulata; Crassostrea gigas; Marqueurs moléculaires; ADN mitochondrial; PCR; Enzymes de restrictions; Haplotypes.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00049/15979/13421.pdf

Contrôle de la maturation et du calendrier d'émission larvaire d'un stock de géniteurs d'huîtres plates Ostrea edulis méditerranéennes. Rapport final
Provedor de dados: 5
Autores: Coatanea, Denis; Vercelli, Catherine; Chabirand, Jean-michel; Oheix, Jocelyne; Pichot, Yves; Hirata, Toshio.
Depuis 1991, différents aspects de l'élevage de l'huître plate Ostrea edulis ont été étudiés dans le cadre des programmes de Diversification Conchylicole de la Station IFREMER de Palavas. Après avoir abordé successivement le potentiel du captage naturel, la technique du télécaptage, la mise au point d'un parcours d'élevage mixte mer-étang et le cycle de reproduction de cette espèce dans le milieu naturel, les travaux ont porté, en 1994, sur le contrôle de la maturation en captivité et la maîtrise du calendrier des émissions larvaires. Les mêmes expérimentations, répétées en 1995, ont été complétées par des essais portant sur la compression du cycle de reproduction. Une installation thermorégulée de conditionnement en circuit fermé a permis d'obtenir un...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00039/15022/12353.pdf

The role of predation in regulating sea urchin populations in eastern Canada
Provedor de dados: 5
Autores: Scheibling, Re.
The green sea urchin Strongylocentrotus droebachiensis is the dominant grazer in the rocky subtidal zone in eastern Canada and its local abundance largely determines the structure and dynamics of the coastal ecosystem. Predation has been cited as an important factor controlling populations of this species, although the evidence for this assertion is equivocal. In this review, I examine the effects of predators on the distribution, abundance and behaviour of S. droebachiensis at each life history stage and evaluate the potential for predatory control. I conclude that our understanding of interactions between this species and its predators is insufficient to support any generalizations about the role of predation in regulating populations. Carefully designed...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20498/18167.pdf

Bacterial problems associated with scallop Pecten maximus larval culture
Provedor de dados: 5
Autores: Nicolas, Jean-louis; Corre, S; Gauthier, Gilles; Robert, Rene; Ansquer, Dominique.
Scallop Pecten maximus larvae have been cultured at the Argenton and Tinduff (Brittany, France) hatcheries with antibiotic treatment (chloramphenicol at 8 ppm) for 15 yr. Without treatment, outbreak of disease has normally occurred between Day 12 and Day 19 or sometimes earlier. A bacteriological study of larvae reared with and without antibiotic was performed over a 4 yr period. Among the collected strains, 2 clusters (C and F) of vibrios were present at high densities only in larvae cultured without treatment. One cluster (C) was routinely isolated over the 4 yr of study, while the other (F) was collected only in the third year. Their virulence with respect to scallop larvae and their lack of infectivity with respect to oyster larvae were demonstrated in...
Tipo: Text
Palavras-chave: Larvae; Bivalve; Vibrio; Scallop.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00090/20077/17716.pdf

Synthèse halieutique des données thonières de la zone économique de Nouvelle-Calédonie (années 1956-1994)
Provedor de dados: 5
Autores: Virly, Sabrina.
La présente synthèse fait un historique des activités thonières en Nouvelle-Calédonie et dresse un bilan des données disponibles dans ce domaine. Ces données sont d'origines diverses (Agences des Pêches des pays étrangers pratiquant la pêche hauturière, Commission du Pacifique Sud, ORSTOM, Service Territorial de la Marine Marchande et des Pêches Maritimes, Services des Pêches des Provinces, ...). Certaines sont incomplètes et de mauvaise qualité. Elles se présentent sous forme disparate (données historiques informatisées des armements étrangers agrégées par mois et par carré de 5° de côté, fiches de pêche manuscrites, rapports scientifiques, rapports de mission, ... ). Elles ne sont donc pas directement accessibles et utilisables par les professionnels de...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00105/21639/19220.pdf

Variability, flexibility and plasticity in life histories of marine invertebrates
Provedor de dados: 5
Autores: Hadfield, Mg; Strathmann, Mf.
Nearly all aspects of the life histories of individual marine-invertebrate species are characterized by ranges of;sizes, seasonal variation, and functional flexibility and phenotypic plasticity in response to varying environmental conditions; that is, they are highly polytypic. Four major areas of polytypy are considered: (1) breeding seasons and cycles vary greatly in time and duration with latitude and from year to year; (2) egg and larval sizes, while showing both genetic and stochastic variability in all species, are often also flexible responses to adult and larval nutrition; (3) modes of development are variable within a number of single species, often reflecting egg-size differences between populations, or even as a result of hatching age of...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20490/18160.pdf

Sea level variability in the central Red Sea
Provedor de dados: 5
Autores: Sultan, Sar; Ahmad, F; Elghribi, Nm.
Analyses of the daily means of the sea level at Jeddah and Port Sudan for the year 1991 reveal that a large proportion (60%) of the energy is concentrated in the seasonal variations. The seasonal signal is approximated as the sum of an annual and semi-annual components. The amplitudes of the annual component are 20.3 and 12.7 cm respective! y and constitute about 44% of the total variance. The amplitudes of the semi-annual cycle are 9.6 cm and 7.7 cm and explain about 10% and 16% of the variance respcctively. At Jeddah cross-spectral anal ysis between the sea-level and the wind stress components shows that the annual cycle is mainly induced by the long-shore component. In contrast no correlation exists between the sea leve! and the cross-shore wind-stress...
Tipo: Text
Palavras-chave: Niveau de la mer; Tension du vent; Analyse spectrale; Mer Rouge; Sea leve; Wind stress; Spectral analysis; Red Sea.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20766/18392.pdf

Recherche de bactéries pathogènes du genre Vibrio sur larves et naissain d'huître creuse, Crassostrea gigas, au sein d'une écloserie-nurserie de l'Ile de Ré
Provedor de dados: 5
Autores: Waechter, Magali.
La production d'huître creuse, Crassostea gigas, est la principale production française de coquillages et la plus importante source de revenu du département de la Charente Maritime. Le naissain est principalement obtenu par captage naturel mais l'utilisation de naissain d'écloserie est en progression depuis quelques années. De forts taux de mortalité estivale, pouvant atteindre 60 à 100% sont rapportées actuellement dans les écloseries-nurseries, sur les larves et le naissain d'huître creuse, Crassostrea gigas. Dans le milieu naturel, la mortalité apparaît aussi sur le naissain de captage naturel. Cette mortalité est difficile à évaluer car les informations à ce sujet sont souvent contradictoires. En ce qui concerne le naissain de captage naturel, la...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00428/53919/55041.pdf

Effets d'une topographie sous-marine à moyenne échelle sur un écoulement uniforme dans un canal
Provedor de dados: 5
Autores: Nguyen, T; Verron, J.
The tridimensional SPEM numerical model based on primitive equations, initially developed by Haidvogel et al. (1991) is used to explore the effects of an isolated seamount on a simple oceanic flow. The flow configuration chosen is that of a simple rectangular canal in which a uniform current flows and the middle of which contains an axisymmetrical submerged obstacle. The canal has two open boundaries. At these boundaries, specific numerical boundary conditions have been developed to permit long-term numerical integrations. Various situations were explored according to the different parameters of the problem, essentially the Rossby number, the intensity of stratification and the amplitude of the topography. The objective is to indicate the steady and...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20486/18156.pdf

Les politiques publiques de gestion des pêches en Méditérranée - France/Espagne
Provedor de dados: 5
Autores: Camilleri, Gérard; Feral, François.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00132/24356/22356.pdf

Incidence de la pêche sur la biodiversité ichtyologique marine : le bassin d'Arcachon et le plateau continental sud Gascogne
Provedor de dados: 5
Autores: Quero, Jean-claude; Cendrero, O.
Estimation of changes in the relative abundance of fish species in catches off Arcachon, on the shelf and in the Bassin d'Arcachon, from 1727 to the present day, shows that some previously dominant species are becoming scarce. Some are actually not caught now in the south of the Bay of Biscay. Among these are the large bottom-living elasmobranchs with low reproduction rates, such as Echinorhinus brucus, Squatina squatina, Raja batis, Raja brachyura, Dasyatis pastinaca, Myliobatis aquila, Galeorhinus galeus, Mustelus asterias, Raja clavata, ,.. and some actinopterygians, such as Trigla lyra, while catches of Eutrigla gurnardus are much reduced. Bottom trawling is principally responsible for these reductions but all fishing methods used there have...
Tipo: Text
Palavras-chave: Species extinction; Fishing induced effects; Long term changes; Arcachon; France; ANE; Marine fishes.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-3793.pdf

Circulation effects on nitrogen dynamics in the Ionian Sea
Provedor de dados: 5
Autores: Civitarese, G; Crise, A; Crispi, G; Mosetti, R.
In this work the description of the interaction between the general circulation and the nitrogen cycle in the Ionian Sea is considered. Firstly, an analysis is made of nitrate data collected during POEM-BC cruises in October 1991 and April 1992; then a numerical experiment based on a coupled hydrodynamic ecomodel is presented. The model results relative to the periods corresponding to the cruises are discussed. The ecomodel is climatological and represents an aggregated description of the nitrogen cycle in terms of inorganic nitrogen, phytoplankton and detritus. The numerical results as nitrogen distributions, fluxes and primary production are presented. A strong dependence of nitrogen distribution on circulation emerges both from the observational data...
Tipo: Text
Palavras-chave: Ionian Sea; Nitrogen cycle; General circulation; Ecomodel; Primary production.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20729/18366.pdf

Properties of nonuniform grids used in ocean general circulation models
Provedor de dados: 5
Autores: Treguier, Anne-marie; Dukowicz, Jk; Bryan, K.
Ocean general circulation models frequently use nonuniform grids, especially in the vertical direction. This paper clarifies the implications of using such grids on the consistency and accuracy of numerical schemes. It is emphasized that numerical schemes maintain their order of accuracy on a nonuniform grid provided the grid can be related to a smooth mapping. Additional metric terms appear in the truncation error, which should not be interpreted simply as a numerical diffusion.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00282/39290/43130.pdf

Statistiques du comportement de systèmes dynamiques non linéaires - Application à la tenue à la mer de navires rapides
Provedor de dados: 5
Autores: Monbet, Valerie.
In this thesis, we propose a method to estimate the mean number of level upcrossings for the degrees of freedom (and/or their first and second derivatives) of a structure submitted to random excitation such as wave forces. Although this method could be applied to several types of systems, we are especially interested here in the study of the behaviour of an high speed ship for the comfort of passengers. The non linear modelization of the system and the representation of sea waves as a Gaussian stationnary process allows to have a different approach of problems like seakeeping than purely hydrodynamic and deterministic methods. Criteria of comfort may be given by statistics of the number of level upcrossings and a statistical analysis allows, by describing...
Tipo: Text
Palavras-chave: Comfort; High speed ship; Adaptative estimation; Non parametrical estimation; Level up crossing; Non linear stochastique oscillator; Confort; Navire rapide; Estimation adaptative; Estimation non parametrique; Franchissement de niveau; Oscillateur non linéaire stochastique.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/these-480.pdf

Surveillance écologique et halieutique des sites de centrales nucléaires littorales : évaluation et perspectives
Provedor de dados: 5
Autores: Quintin, Jean-yves; Bordet, F.
Electricité de France (EDF) has asked Institut Français de recherche pour l'exploitation de la mer (IFREMER) to monitor the coastal marine environment and its living resources around nuclear power plants along the French coast. Started in 1974, these investigations were undertaken in the areas of Gravelines, Le Blayais, Paluel, Flamanville, and Penly; the objective is to detect any impact of the open-circuit water cooling system, as well as any differences in the marine environment itself. To examine this question, IFREMER has set up a program called Impact des Grands Aménagements (IGA). It has evolved according to the results obtained and now integrates the specificity of each site in a global program common to all. The nature and the problems of impact...
Tipo: Text
Palavras-chave: Études d'impact; Environnement marin; Gestion côtière; Impact studies; Marine environment; Coastal management.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00137/24810/22890.pdf

Los aspectos economicos de la produccion acuicola en el Mediterraneo
Provedor de dados: 5
Autores: Paquotte, Philippe; Bakela, Z; Franquesa, R; Basurco, B.
Aquaculture production in the Mediterranean showed a constant increase over the years. The current production reached 790000 Tm, in 1994. This represents about 5% of global aquaculture production. Although the Mediterranean aquaculture is moving mainly to shellfish (67.8%), fish production (31%) is increasing steadily. The production of marine fish is characterized by the dominance of two species, loubine and sea bream. These represent 35000 tonnes / year (...). [NOT CONTROLLED OCR]
Tipo: Text
Palavras-chave: SEM.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-4072.pdf

Food source of intertidal nematodes in the Bay of Marennes-Oleron (France), as determined by dual stable isotope analysis
Provedor de dados: 5
Autores: Riera, P; Richard, P; Gremare, A; Blanchard, G.
Nematodes living on an intertidal mudflat of the Marennes-Oleron Bay (France) were assayed for delta(13)C and delta(15)N ratios together with their potential food resources between July 1992 and May 1993. Results suggest that nematodes do not exploit all the components of the sedimented organic matter (SOM) pool at the same rate. Furthermore, based on coefficients of average trophic enrichment found in the literature for both C and N, the enrichment of nematodes in C-13 and their depletion in N-15 relative to SOM suggest that microphytobenthos constitutes their main food source in this particular environment.
Tipo: Text
Palavras-chave: Nematodes; Microphytobenthos; Food sources; Stable isotope ratios.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00282/39288/43132.pdf

The effect of sublethal predation on the biology of echinoderms
Provedor de dados: 5
Autores: Lawrence, Jm; Vasquez, J.
In contrast to plants, predation on animals is usually lethal. Analysis of the effect of predation on animal populations and on predator-prey dynamics typically assumes this is the case. However, sublethal predation occurs in echinoderms, primarily on the arms of crinoids, asteroids, and ophiuroids. Sublethal predation is important in these echinoderms as it meets one of Harris' (1989) major criteria, affecting basic biological processes such as acquisition of food and allocation of nutrients to growth and reproduction. Sublethal predation would have an effect on their ecological role. It is essential to consider sublethal predation in the analysis of the life-histories of these species.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20499/18168.pdf

Contamination par le tributylétain (TBT) du Bassin d'Arcachon évaluée à l'aide d'un indicateur biologique : l'imposex chez Ocenebra erinacea. Résultats préliminaires
Provedor de dados: 5
Autores: Fernandez-castro, Nora; His, Edouard; Cantin, Christian.
The Bay of Arcachon has been particularly affected by the impact of organotin-based antifouling paints (His, 1996). Boring gastropods, Ocenebra erinacea, have completely disappeared from the Bay, because of the castration induced by these compounds, from 1980 to 1990. There have been no studies on imposex effects in the Bay of Arcachon since the investigations of Poli (1972) who first described the phenomenon, and of Féral (1982) who attributed it to TBT. Recently, Sarradin &amp; al. (1991) demonstrated the persistence of TBT and its degradation products in the sediments of the Bay, the latter being a potential source of pollution; Stroben &amp; al. ( 1995) have conceived a contamination scale based on the VDSI (Vas Deferens Sequence Index) in prosobranch...
Tipo: Text
Palavras-chave: Bassin d'Arcachon; Imposex; Ocenebra erinacea; TBT; Bay of Arcachon; Imposex; Ocenebra erinacea; TBT.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00038/14898/12224.pdf

Rearing of scallops (Pecten maximus) in France, from hatchery to intermediate culture, results of a 10 year programme (1983-1993)
Provedor de dados: 5
Autores: Dao, Jean-claude; Barret, Jean; Devauchelle, Nicole; Fleury, Pierre-gildas; Robert, Rene.
A stock enhancement programmr for scallop was initiated in France in 1983. As the natural spat collection on the french fishing grounds as well on Irish and Scottish waters was unsuccessful. (...)
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00091/20263/17908.pdf

Seabass and seabream market : situation and potential in Mediterranean Mahgreb countries
Provedor de dados: 5
Autores: Lacroix, Denis.
The five mediterranean Maghreb countries (Morocco, Algeria, Tunisia, Libya, Egypt) present similar natural characteristics which explain numerous observations about seabass (Dicentrarchus labrax)and seabream (Sparus aurata) production and market. From the Atlantic coast to the Suez canal, if the coastline is not favourable to aquaculture, as safe moorings in sheltered bays are limited, several lagoons (300 000 ha) and brackishwater lakes (400 000 ha) are available. Traditionally, local consumption of seafood is low (4-8 kg/capita/year) and tourism industry, when active, doesn't ask for such high quality fish. Consequently, export to European Union, and mainly to Italy, is the first target of all seabass and seabream producers. Production technologies range...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00041/15179/12516.pdf

Faune ichtyologique comparée de deux récifs artificiels du littoral de la Ria Formosa (lagune Portugal) : résultats préliminaires
Provedor de dados: 5
Autores: Santos, M; Monteiro, C; Lasserre, G.
The fish assemblages of two artificial reef systems of the south coast of Algarve (Portugal) are presented, and a comparative study is made of their species richness variation according to their location off the Ria Formosa lagoon. Each system consists of a protection reef and an exploitation reef. Gillnets, traps, longline and visual census were used as sampling techniques. Both reefs showed similar species richness, in each case higher than that of Ria Formosa. No significant differences of species richness were found between the reef systems (p = 0.1). However, the exploitation reefs showed a significant difference of species richness, that was more evident when accumulated species richness was used to compare them (p = 0.01).
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20764/18390.pdf

Synthèse des résultats obtenus concernant l'étude du virus de type herpès et la mise au point de méthodes de diagnostic de l'infection - Juin-Septembre 1996
Provedor de dados: 5
Autores: Renault, Tristan; Le Deuff, Rose-marie; Lipart, Cecile; Chollet, Bruno; Haffner, Philippe.
Cette note de synthèse des travaux réalisés au laboratoire de Génétique, Aquaculture et Pathologie de la station IFREMER de La Tremblade, dans le cadre de l'étude du virus de type . herpès et de la mise au point des méthodes de diagnostic fait suite à la précédente note (fin mai 1996). Les résultats obtenus concernant les analyses protocolaires et hors protocoles, ainsi que les résultats expérimentaux déjà disponibles sont données et commentés en quatre points. Cette étude est soutenue par la Région Poitou-Charente et la Région Pays de Loire.
Tipo: Text
Palavras-chave: Pathologie; Virus; Herpès virus; Infection; Diagnostic; Huître creuse; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00044/15503/12875.pdf

The western Irish Sea gyre: A retention system for Norway lobster (Nephrops norvegicus)?
Provedor de dados: 5
Autores: Hill, Ae; Brown, J; Fernand, L.
Recently a cyclonic, near-surface, gyre has been discovered above the deep (&gt; 100 m) western basin of the Irish Sea. The gyre is present each year only during spring and summer (the surface heating season), and circulates around a static dome of-cold bottom water left beneath the thermocline after the previous winter. The mud substrate of the western Irish Sea is geographically isolated and is the habitat for adult Norway lobster (Nephrops norvegicus). In spring, newly hatched larvae are released into the water column, spending approximately 50 days in the plankton. Recruitment depends upon settlement of metamorphosed larvae onto the mud patch. Larval distributions show a strong correspondence to the field of stratification and it is probable that the...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20493/18162.pdf

Observations réalisées sur la biologie et la pêche du "gros yeux" Etelis oculatus VAL. aux Petites Antilles de 1982 à 1992.
Provedor de dados: 5
Autores: Guillou, A; Lagin, Alain-sabin; Murray, P.
En preVIsion d'un développement probable à plus ou moins brève échéance de l'exploitation des vivaneaux profonds "gros yeux" (Etelis oculatus), on s'est attaché à rassembler et à analyser dans cette étude le maximum des observations éparses et connaissances acquises sur la biologie et la pêche actuelle de ce Lutjanidé, le plus profond que l'on connaisse aux Antilles. Dans la première partie de ce document ont ainsi été abordés en particulier les aspects suivants de la biologie du gros yeux : caractères métriques (relation longueur totale/longueur à la fourche, relations taille/poids), habitat, comportement, taille moyenne de première maturité sexuelle, composition en tailles des captures. Dans la seconde partie de l'étude sont exposées d'une part les...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00105/21589/19169.pdf

Compte-rendu d'activité du Laboratoire d'Aquaculture Tropicale. Période : Janvier à Décembre 1995
Provedor de dados: 5
Autores: AQUACOP.
Progress report of the different laboratories of the "Centre Océanologique du Pacifique" (January to December 1995) : - Peneid shrimp : Ecophysiology, Pathology, Nutrition, Genetics, Cryopreservation, Development physiology - Pearl oyster : Ecophysiology, Nutrition
Tipo: Text
Palavras-chave: Aquaculture tropicale; Pénéides; Huîtres perlières; Polynésie Française; Tropical aquaculture; Peneid shrimp; Pearl oyster; French Polynesia.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00428/53980/55141.pdf

Recruitment and year-class segregation in response to abiotic and biotic factors
Provedor de dados: 5
Autores: Glemarec, M; Guillou, M.
Do post-larval recruitment and year-class segregation constitute a response to abiotic and biotic factors? Avoiding the traditional controversy about conditions in rocky and soft bottom conditions, the authors describe several examples where year-class segregations are evident in soft bottoms, taken from different trophic guilds of echinoderm populations on the coast of Brittany: suspension feeders, herbivorous and carnivorous populations. Physical factors such as fronts or gyres can concentrate larvae and nutritive particles for suspension-feeder populations. These factors are, on the other hand, conducive to the establishment and persistence of stable populations in time. The cohorts being long-lived, the oldest classes are very abundant and, as a...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20496/18165.pdf

Du bassin versant au territoire maritime : la ressource hydrique objet d'une recherche intégrée et finalisée. L'exemple du bassin versant de la Charente et de la "Mer des Pertuis"
Provedor de dados: 5
Autores: Delmas, François; Heral, Maurice; Laplana, Ramon; Loubersac, Lionel; Prou, Jean.
Parmi les régions Ouest Européennes, la région Poitou Charentes se caractérise dans sa dimension économique par la présence d'activités où les cultures marines, l'agriculture et le tourisme occupent une place prédominante. Cette identité, partagée par d' autres régions, notamment atlantiques, s'appuie sur l'exploitation de la ressource hydrique et implique de plus en plus des critères de haute qualité tant vis à vis des produits finis agricoles, conchylicoles, touristiques que vis à vis de l'environnement, des paysages et des eaux. Sur cet ensemble de points la Région est dotée d'atouts indiscutables. Cependant les contraintes liées à la disponibilité de la ressource hydrique continentale comme marine et à son maintien à un bon niveau de qualité, font...
Tipo: Text
Palavras-chave: Conchyliculture; Agriculture; Charente; Marennes Oléron; Transfert eau; Modèle trophique; Gestion eau.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00018/12933/9898.pdf

Facteurs de différenciation de la croissance de l'huître creuse Crassostrea gigas dans les principaux bassins ostréicoles français entre 1990 et 1995
Provedor de dados: 5
Autores: Jourdain, Céline.
In order to find the global parameters which could explain the growth of Pacific Oyster Crassosrrea gigas. a survey of Pacific Oyster's growth has been done in Brittany from 1990 to 1995 and in France from 1993 to 1995. The analysis shows the positive influence of rain amount on weight grov,th except in eutrophic areas where it is the contrary. It also shows the positive influence of temperature provided it stays within an optimal range. statistically defined. Some characteristics of the production areas have been reviewed without achieving clear explanation of growth differences between sites. Further studies are necessary particularly in hydrodynamics and primary production determinism to progress.
Tipo: Text
Palavras-chave: Huitre creuse; Crassosrrea gigas; Croissance; Meteorologie; Environnement; REMORA.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00082/19322/16916.pdf

Assurance qualité et accréditation: contexte général et application à la DEL
Provedor de dados: 5
Autores: Berthome, Jean-paul; Herve, Christiane.
Quality assurance specifications, standards and inspection organisms are presented. French and international status shows that quality assurance is sharply expanding. Several french research institutes have started this kind of step wich has led to analysis laboratories accreditation. European regulation will oblige organisms such as IFREMER to give anal ysis results coming from accreditated laboratories (thermotolerant coliforms and phycotoxins). Different phases of laboratories accreditation are presented. Reflection on quality assurance in research has been developed on the behalf of Upper Education and Research Ministry.
Tipo: Text
Palavras-chave: Assurance qualité; Accréditation; Quality assurance; Accreditation.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00408/51924/52547.pdf

Approche bidimensionnelle des transports sédimentaires à partir des variations granulométriques des sédiments superficiels : Exemple de la partie occidentale de la baie du Mont Saint-Michel
Provedor de dados: 5
Autores: Ehrhold, Axel; Auffret, Jean-paul.
Grain size trends in relation to net sediment transport pathways are examined, using sorne cornmonly-used grain size pararneters. The results of the model are compared with the net sediment transport pathways established on the basis of the bedfonn asymmetry. The 3 types of trends are calculated using an increasing characteristic distance and differents grids of seabed sediment samples. lt is shown that : (1) the characteristic distance defined by Gao et Collins (maximum spatial sampling interval) changes with these two factors to a maximal value; (2) in an heterogeneous sedimentary environment, the correlations between calculated vectors and observed transport pathways are better by using sand size distributions and (3) the residual pattern rises to sixty...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00285/39620/38111.pdf

Modèles loglinéaires pour l'étude des associations entre captures par unité d'effort et variables hydroclimatiques
Provedor de dados: 5
Autores: Badia, Jacques; Prouzet, Patrick.
In this paper we study associations between categorical variables. We present an approach based on loglinear modelling. A better knowledge of the influence of the intensity of tidal coefficient (cm) and of the rate of river flow (df) on catch per unit effort (cpue) of allis shad (Alosa alosa) was obtained. Analysis performed indicated that an increase of catch per unit effort is proportionally associated with the increase in the tidal coefficient. We also noted the influence of the rate of flow.
Tipo: Text
Palavras-chave: Modèle loglinéaire; Capture par unité d'effort; Variables environnementales; Alosa alosa; Grande alose ou alose vraie; Loglinear model; Catch per unit effort; Environmental variables; Alosa alosa; Allis shad.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00188/29889/28338.pdf

Rapport sur la pêche des marins pêcheurs dans l'estuaire de l'Adour en 1995
Provedor de dados: 5
Autores: Prouzet, Patrick; Martinet, Jean-pierre; Cuende, François - Xavier.
Situation géographique et caractéristiques de la zone prospectée par les professionnels maritimes. La zone de pêche étudiée se trouve dans la région du Bas-Adour (cf carte de situation). Elle est limitée en aval par la "barre de l'Adour" et en amont par le "bec du Gave" (confluence de l'Adour et des Gaves réunis) et la première pêcherie des Gaves Réunis. Cela représente une distance prospectée de 33 km. Cette portion de l'Adour est soumise à l'influence de la marée compte tenu de son absence d'élévation par rapport au niveau de la mer. La limite de salure des eaux fixée par le décret du 4 juillet 1853 se situe au pont d'Urt (château de Montpellier) à 22 km de la limite transversale de la mer. Ainsi, l'aire d'étude se situe à la fois en zone maritime et en...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00070/18159/15716.pdf

Cartographie des nourriceries littorales de poissons du golfe de Gascogne
Provedor de dados: 5
Autores: Guerault, Daniel; Dorel, Didier; Desaunay, Yves.
Expeditions undertaken using a standardised protocol between 1981 and 1996 took a census of species of commercial interest that depend on certain coastal ecosystems for at least the beginning of their life cycle. Of the 55 species censused, we identified 39 fish species, 6 crustacean species and 10 mollusc species (3 cephalopods, 5 bivalves and 2 gastropods). Some of these species are restricted to coastal systems (14 native species: 6 crustaceans and 8 molluscs) and some species whose adults are fished off the coast (41 non indigenous species: all 39 fishes and 2 cephalopods, cuttlefish and squid).The coast functions as a nursery in two ways. First, it constitutes a favourable biotope for the whole life cycle of native species. Second, for non indigenous...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-4228.pdf

L'écolotoxicologie appliquée au milieu marin
Provedor de dados: 5
Autores: Maurice, Manuelle.
Ce rapport vise à faire le point sur les grandes orientations prises jusqu'à aujourd'hui en écotoxicologie marine en France et dans le monde. Il aborde successivement l'état de l'environnement en France, la toxicité des polluants chimiques vis-à-vis des organismes marins, le monitoring des polluants et la mise en pratique de la biosurveillance. Il décrit notamment les différentes techniques utilisées pour l'évaluation de l'impact des polluants chimiques sur les écosystèmes marins.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00104/21551/19130.pdf

La mytiliculture dans le Pertuis Breton - Synthèse des travaux réalisés en 1980 à 1992
Provedor de dados: 5
Autores: Dardignac-corbeil, Marie-jose.
The studies caITied out between 1980 and 1992 in the "Pertuis Breton" demonstrated that mussel growth was systematically reduced near the coastline for a similar emersion time. No relationship was established between current pattern, stocking biomass and growth results. In contrast, poor growth was strongly con'elated to seawater quality and high seston load. Based on these results, the author suggests further studies to adress the issues improved seawater monitoring, studies on factors affecting shellfish quality. Furthermore, specifie studies are proposed to optimize the management of the mussel production in the Pertuis Breton. These include consider how to improve mussel spat recruitment, growth rate, and to specify optimum stocking biomass with...
Tipo: Text
Palavras-chave: Pertuis Breton; Mytilus edulis; Bouchot; Croissance; Pertuis Breton; Mytilus edulis; Bouchot; Growth.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00045/15581/12985.pdf

Simulations of the population dynamics of Pectinaria koreni in a 2-D vertical advection-diffusion model of the Seine estuary
Provedor de dados: 5
Autores: Carlotti, F.
A mathematical model describing the population dynamics of Pectinaria koreni, a benthic annelid species, and the larval dispersion in an idealized two-dimensional model in the along-stream and depth dimensions of the Seine estuary, is presented. The population dynamics model takes into account the several planktonic, meiobenthic and benthic stages with their different physiological and behavioural characteristics. The physical model takes into account the horizontal residual circulation and the vertical and horizontal eddy diffusion. Model applications provide an estimate of the respective roles of development and advective drift on recruitment. A basic simulation reproduces the mean path of the population in the estuarine hydrodynamic structure. Starting...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20750/18378.pdf

The development of marine fish farming in europe : a parallel with salmon culture
Provedor de dados: 5
Autores: Harache, Yves; Paquotte, Philippe.
This paper is aimed at analysing the similar trends and different constraints which influence marine fish farming of new species such as sea-bass, sea-bream and turbot in Europe in comparison with the Norwegian salmon farming success. In a general context of low progression, European aquaculture has been characterised by the development of  intensive fish farming. The most notable fact is the recent increase in intensive salmonid farming,  with a turnover of almost 2 millions Ecu. More recently, the intensive farming of sea bass and sea bream has increased very rapidly in the Mediterranean Basin, although on a more reduced extent. Turbot farming is developing slowly too on the French and Spanish Atlantic coast, taking benefit of the temperate climate in...
Tipo: Text
Palavras-chave: Europe; Environment; Marketing; Development; Aquaculture; SEM.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/acte-4069.pdf

Données sur le comportement et les effets des produits phytosanitaires dans l'environnement
Provedor de dados: 5
Autores: Andral, Bruno.
Le manque de données validées sur les matières actives communément utilisées en agriculture et les problèmes d'interprétation rendent difficile l'évaluation des risques liés à l'usage des pesticides et à leur transfert en milieu marin. Un court rappel des caractéristiques du marché, de la législation et des principaux phénomènes influençant le transfert des produits phytosanitaires dans les milieux aquatiques est suivi d'une analyse des propriétés intrinsèques communément employées par les experts chargés de cette évaluation. Une fiche de renseignements liste chacune de ces propriétés, auxquelles s'ajoutent des informations sur la nature chimique, l'usage, les quantités employées et l'écotoxicité pour une quinzaine de matières actives détectées dans les...
Tipo: Text
Palavras-chave: Matière active pesticide; Devenir; Transfert; Écotoxicité.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00132/24308/22306.pdf

RNO. Surveillance du Milieu Marin. Travaux du Réseau National d'Observation de la qualité du milieu marin. Edition 1996
Provedor de dados: 5
Autores: Ifremer.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00314/42558/41929.pdf

Évolution de la dorsale de Carlsberg : évidence pour une phase d'expansion très lente entre 40 et 25 Ma (A18 à A7)
Provedor de dados: 5
Autores: Mercuriev, S; Patriat, P; Sochevanova, N.
The Carlsberg Ridge (CAR) is the present plate boundary between Somalia and India. It extends north of the Equator from 57 degrees E at Owen FZ to 66 degrees E where it joins the Central Indian Ridge (CIR), the NW-SE main ridge trend changing to N-S. In the 1960s, CAR was one of the first mid-oceanic ridges to be surveyed, and in the McKenzie and Sclater (1971) Indian ocean synthesis its evolution appears as one of the soundest results of that work: fast spreading from A28 (anomaly 28 epoch) to A23, slow spreading from A5 to the present. After the identification of the A20-A24 series in the Arabian basin by Whitmarsh (1974), no new specific study was devoted to this ridge, although the extensive survey of the surrounding areas showed its probable complex...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00093/20472/18142.pdf

Réseau trophique du bassin de Marennes-Oléron (rapport 1996). Région Poitou-Charentes
Provedor de dados: 5
Autores: Bacher, Cedric; Blanchard, Gerard; Bougrier, Serge; Cariou-le Gall, Valerie; Delmas, D.; Deslous Paoli, Jean-marc; Dinet, A.; Garet, Marie-josee; Geairon, Philippe; Jonquieres, Gerard; Laisne, A.; Maffei, E.; Montagna, P. A.; De Montaudouin, Xavier; Morin, S.; Richard, P.; Riera, Pascal; Sauriau, Pierre-guy; Vrignaud, N.
Les cartographies annuelles des biomasses microphytobenthiques ont été réalisées pour le bassin de Marennes-Oléron. Parallèlement les cartographies des caractéristiques sédimentaires ont été établies simultanément aux cartes d'abondance et biomasse macrofauniques en portant un effort particulier sur les densités des compétiteurs des huîtres notamment les Crépidules. Simultanément les études des mécanismes contrôlant le réseau trophique sur la vasière de Brouage ont été poursuivies notamment les relations entre les flux de sels nutritifs et le microphytobenthos. L'importance de ce dernier compartiment dans la nutrition de l'huître a été clairement mis en évidence par l'utilisation des traçeurs isotopiques naturels. Enfin, les caractéristiques de filtration...
Tipo: Text
Palavras-chave: Bassin de Marennes Oléron; Microphytobenthos; Physiologie; Crassostrea gigas; Crépidules; Modèle réseau trophique; Cartographie; Charente-Maritime.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00102/21294/18911.pdf

The Balearic current and volume transports in the Balearic basin
Provedor de dados: 5
Autores: Garcialadona, E; Castellon, A; Font, J; Tintore, J.
The Balearic basin is a semi-enclosed basin located in the western Mediterranean Sea, connecting the Gulf of Lions and the Alboran basin. While the characteristics and circulation of the water masses have been rather well established, the exchanges with adjacent basins, essential to our understanding of the circulation in the western Mediterranean and for validating outputs of general circulation models, have never been determined in detail. We present here the data from the FE-89 (June 1989) Spanish cruise, during which high-resolution CTD and ADCP measurements were performed on the open boundaries of the Balearic basin. The fluxes for all the boundaries were calculated in a quasi-synoptic fashion. The values found in the Ibiza and Mallorca channels...
Tipo: Text
Palavras-chave: Circulation; Western Mediterranean; Balearic current; Hydrography; Volume transports.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20507/18176.pdf

Long-term variations in the Mediterranean sea level calculated by spectral analysis
Provedor de dados: 5
Autores: Vilibic, I; Leder, N.
The aim of this paper is to investigate long-period climatic variations in the Mediterranean sea level, as well as some meteorological parameters and the influence of atmospheric forcing on sea-level fluctuations. Data for the annual mean sea level at seven stations (Trieste, Genoa, Marseilles, Alicante, Oran, La Goulette and Sfax), located in the Western Mediterranean, together with mean air pressure and temperature data for Zagreb, have been spectrally analysed. Various peaks in the power, coherence and phase spectra have been detected. The period of about 5.1 years corresponds to the quasi-meridional fluctuation in the paths of Atlantic cyclones. The period of about 2.7 years may be excited by variations of currents and sea-surface temperature in the...
Tipo: Text
Palavras-chave: Sea-level series; Meteorological series; Spectral analysis; Long-period climatic oscillations.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20763/18389.pdf

IMAGES - MD 101 à bord du Marion-Dufresne du 29 mai au 11 juillet 1995. A coring cruise of the R/V Marion Dufresne in the North Atlantic Ocean and Norwegian Sea
Provedor de dados: 5
Autores: Bassinot, Franck C; Labeyrie, Laurent D.
IMAGES coordinated a first international cruise in June and July 1995 over the North Atlantic and Norwegian sea on board the French RN Mm'ion Dufresne (MD 10 I, Brest - Stornoway (Lewis Island) - St-Pierre - Azores - Marseille). Its main scientific objective was the collection of giant piston cores on rapidly sedimenting drifts and continental margins of the North Atlantic ocean and Norwegian Sea, along the track of the main thermohaline circulation. The cruise crossed the North-East Atlantic margins, the Feni Drift, the Scottish, North Faeroes and Norwegian margins (to nON), the Iceland South-East margins, the Gardar Drift, the NAMOC Channel, the Newfoundland margin, the Bermuda rise, the mid Atlantic ridge, and the Azores and Iberian margins. Additional...
Tipo: Text
Ano: 1996
URL: https://archimer.ifremer.fr/doc/00633/74461/74284.pdf

Session de formation à l'utilisation de la technique PCR pour le diagnostic de l'infection à Herpèsvirus chez les huîtres
Provedor de dados: 5
Autores: Renault, Tristan; Le Deuff, Rose-marie; Lipart, Cecile.
Parmi les maladies infectieuses observées chez les mollusques bivalves marins, les viroses sont souvent mal connues, en raison d'une certaine inadéquation des techniques d'identification et de diagnostic généralement mises en oeuvre lors de phénomènes de mortalité. En effet, la microscopie photonique a été et reste encore, dans de nombreux laboratoires travaillant sur les pathologies des mollusques, la technique de base pour l'analyse des échantillons. Cette technique reste insuffisante en cas de pathologie d'origine virale si elle n'est pas complétée par d'autres approches (microscopie électronique à transmission, recherche d'effets cytopathogènes sur monocouches cellulaires et réactifs de diagnostic spécifiques). Aucune lignée de mollusques bivalves...
Tipo: Text
Palavras-chave: Pathologie; Technique laboratoire; PCR; Diagnostic; Herpèsvirus; Huître creuse; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00044/15501/12870.pdf

Etude expérimentale de l'influence de deux stress environnementaux sur les défenses immunitaires et la résistance à la vibriose de la crevette Penaeus stylirostris
Provedor de dados: 5
Autores: Gangnery, Aline.
Cette étude a pour objectif de mesurer chez la crevette Penaeus stylirostris l'effet de deux stress environnementaux, ammoniaque et hypoxie, sur les défenses immunitaires (hémocytes et prophénoloxydase) et la résistance à l' infection par la bactérie Vibrio penaeicidae. Les crevettes, sélectionnées en stade C du cycle de mue, ont été soumises pendant 24 heures à plus ieurs doses d'ammoniaque N.NH3 ( 1, 1 .5, 2, 2.5 et 3 mg/l) ou placées en situation d' hypoxie (1 ppm vs 6ppm en normoxie). L'effet du stress a été évalué à 24 h par la mesure de la capacité osmorégulatrice ainsi que les paramètres immunitaires. Les résultats montrent que l'ammoni aque à 3 mg N.NH3/I induit une diminution significative du nombre total des hémocytes, cependant que l'activité de...
Tipo: Text
Palavras-chave: Penaeus stylirostris; Vibrio penaeicidae; Immunité; Hémocyte; Prophénoloxydase; Infection bactérienne; Capacité osmorégulatrice; Ammoniaque; Hypoxie.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00441/55273/56767.pdf

Contamination du milieu marin par les micropolluants (résultats du RNO de 1979 à 1994). 3 : L'estuaire de la Gironde
Provedor de dados: 5
Autores: Cantin, Christian.
After a quick presentation of the observation national network of the marine environment quality (RNO), the different metallic and organic Micropollutants measured in the gironde estuary are described (origin, eventual toxicity). The results of the contamination measurements in the living tissue (oysters) are presented on graphics, based on a sample every three months from 1979 to 1994, and means are compared to those obtained during the same period on the others points of the Manche-Atlantique coast.  
Tipo: Text
Palavras-chave: Micropolluants; Estuaire; Gironde; Huîtres; Micropollutants; Estuary; Gironde; Oyters.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00422/53310/54148.pdf

Bioindicators of pollutant exposure in the northwestern Mediterranean sea
Provedor de dados: 5
Autores: Burgeot, Thierry; Bocquene, Gilles; Porte, C; Dimeet, Joel; Santella, Rm; Garcia De La Parra, L.m.; Pihol-leszkowicz, A.; Raoux, C.; Galgani, Francois.
Several bioindicators were used to evaluate the biological and genotoxic effects of marine pollutants near large coastal cities in the northwestern part of the Mediterranean Sea. Three target species of teleosts were selected: red mullet Mullus barbatus and 2 types of comber (Serranus hepatus and S. cabrilla). Induction of ethoxyresorufin-O-deethylase (EROD) activity specific for polycyclic aromatic hydrocarbons (PAH) and polychlorinated biphenyls (PCB) was measured in the livers of the fish, and inhibition of acetylcholinesterase (AChE) by organophosphorus insecticides and carbamates was measured in their muscle tissues. Maximal EROD activities (16.8 +/- 2.7 to 19.4 +/- 4.2 pmol min(-1) mg protein(-1)) recorded in red muller near Barcelona (Spain),...
Tipo: Text
Palavras-chave: EROD; GST; AChE; Antioxidant enzymes; Biomonitoring; DNA adducts; PAH; Mullus barbatus.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00183/29410/27779.pdf

La Biominéralisation de Pecten maximus L. : Anomalies liées aux Perturbations du Milieu
Provedor de dados: 5
Autores: Larvor, Helene.
L'étude du brunissement pathologique des valves de la coquille Saint-Jacques a permis d'identifier différents types d'altérations des mécanismes de la calcification : des détériorations microstructurales concomitantes avec une pigmentation brune anormale de la couche interne des tests. Les mécanismes de biominéralisation contrôlant l'intégration du carbonate de calcium dans les structures coquillières ne sont pas altérés : le taux de calcium, la minéralogie et la composition en acides aminés des matrices organiques cristallines sont équivalents dans les valves brunes et les valves blanches. Par contre, la présence d'une eumélanine, responsable de la coloration brune, est détectée dans les matrices organiques insolubles des régions coquillières aux...
Tipo: Text
Palavras-chave: Calcification; Coquille; Mélanine; Microstructure; Pecten maximus; Mollusques; Perturbations environnementales; Biominéralisation.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00043/15449/12823.pdf

Effects on phytoplankton growth of dissolved substances produced by fish farming
Provedor de dados: 5
Autores: Arzul, Genevieve; Clement, Alejandro; Pinier, Anne.
Fish Farming enriches the water column in dissolved organic and inorganic material. These materials excreed by the fish, elutriate from uneaten food and derive from other polluting substances. Ratios of the organic/inorganic forms of substances (for example N and P) are thus modified. Such perturbations in turn affect phytoplankton development. From in vitro analyses and tests of water taken from a turbot rearing tank, we show the changes in seawater chemical composition produced as well as the way growth was modified in three phytoplankton species: the diatom, Chaetoceros gracile, and the dinoflagellates, Gymnodinium cf. nagasakiense and Alexandrium minutum. Elutriates from the granules used for feed (0.1 to 100 mg.l(-1)) were found to be stimulating,...
Tipo: Text
Palavras-chave: Antibiotique; Fécès; Aliment; Aquaculture; Régulation de croissance; Phytoplancton; Urée; Antibiotic; Faeces; Feed; Fish farming; Growth regulation; Phytoplankton; Urea.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00188/29887/28340.pdf

Surveillance écologique et halieutique. Site de Gravelines. Novembre 1994 - Octobre 1995
Provedor de dados: 5
Autores: Delesmont, Régis; Delesmont, Edith; Hitier, Benoist; Hebert, Pascale; Le Fevre-lehoerff, Geneviève; Cochard, Marie-laure; Woehrling, Daniel; Dewarumez, Jean-marie; Menu, Dominique; Luczak, Christophe.
L'année 1994-1995 se distingue des périodes précédentes par un hiver peu rigoureux et, surtout, un été très chaud. La quantité moyenne d'électricité produite par la centrale pour la période est de 4 250 MW, soit l'équivalent de 4,7 tranches, pour un débit moyen calculé de 221 m3/s, soit l'équivalent du débit de pompage de 5,5 tranches. Sur cette base de calcul, l'augmentation moyenne de la température de l'eau au rejet est de 9,15°C. Cette valeur est du même ordre que celles des périodes précédentes. Les dosages des haloformes et, en particulier, du plus abondant d'entre eux, le bromoforme, montrent que la chloration a été en service pendant 9 des 12 mois de la période d'étude.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00005/11633/8291.pdf

Cruise Explores Hydrothermal Vents of the Manus Basin
Provedor de dados: 5
Autores: Auzende, Jean Marie; Tetsuro, Urabe; Scientific Party,.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00070/18136/15684.pdf

Suivi de la qualité bactériologique des eaux pluviales rejetées à la mer sur les sites de Ronce-Les-Bains et Saint-Pierre d'Oléron
Provedor de dados: 5
Autores: Roesberg, Didier.
A la suite de mauvais résultats d'analyse observés fréquemment dans le cadre du réseau microbiologique sur les coquillages (REMI), il nous est apparu nécessaire d'étudier les arrivées d'eaux pluviales sur la zone ostréicole de Ronce les Bains ainsi qu'autour de l'agglomération de Saint-Pierre d'Oléron durant les périodes estivale et automnale.
Tipo: Text
Palavras-chave: Microbiologie; Bactériologie; Rejet mer; Réseau observation; Bassin de Marennes Oléron.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00050/16155/13638.pdf

Suivi de la reproduction des huîtres - Saison 1996
Provedor de dados: 5
Autores: Faury, Nicole.
Contrairement aux années précédentes, le suivi de la reproduction des huîtres s'est effectué cette année sur un nombre de points limités. A la demande de la Section Régionale de Marennes Oléron qui finance cette opération, des lieux de pêches ont été supprimés en Seudre (Coux et les Roches) et dans le Bassin (Mérignac). Selon les termes du contrat, le suivi s'est opéré du 1er juillet au 31 août.
Tipo: Text
Palavras-chave: Reproduction; Captage; Naissain; Crassostrea gigas; Marennes Oléron.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00072/18288/15860.pdf

Environmental factors influencing asexual reproductive processes in echinoderms
Provedor de dados: 5
Autores: Mladenov, Pv.
This review provides a brief update of the occurrence and adaptive significance of asexual reproduction in echinoderms. It then focuses on the state of knowledge of biotic and abiotic factors that influence asexual processes in this group, particularly factors that may play a role in regulating the expression and relative proportion of asexual versus sexual phenotypes within populations of species, as well as factors modulating and triggering asexual processes. The information presented in the review is synthesized into the form of a basic model depicting how environmental factors may interact with physiological factors to regulate asexual reproduction in echinoderms, and to show how such regulatory processes may parallel in some ways those known to...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20481/18151.pdf

Analyse des lipides en tant que cofacteurs des contaminants organiques dans les organismes marins
Provedor de dados: 5
Autores: Quemeneur, Michelle.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00081/19238/16833.pdf

Reliability of species identification from mid-water trawl catches during acoustic surveys : a catchability study
Provedor de dados: 5
Autores: Masse, Jacques; Guiho, Nicolas.
Objective echoes identification is not possible nowadays when several species are present in an area. Mid-water trawl catches are usually used to split fish schools into species during acoustic surveys. Moreover it is weIl known that because of a lively behaviour of these types of species, the catchability may vary a lot from one species to another. Therefore, in order to verify the reliability of identification by trawling, 68 hauls carried out during 4 acoustic surveys (1991-1994) have been analysed. Five pelagic species (anchovy, mackerel, horse-mackerel, sprat and sardine), observed during these surveys in Bay of Biscay were considered. On the one hand, taking into account the vertical echo-sounder data and the vertical course of the trawl from nets...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00203/31438/29834.pdf

Evaluation sensorielle d'huîtres d'origine géographique et de technique d'élevage différentes
Provedor de dados: 5
Autores: Cardinal, Mireille; Cornet, Josiane.
Dans le cadre d'un programme initié par l'IFREMER relatif à la qualité des coquillages, des évaluations sensorielles d'huîtres ont été réalisées à l'automne 95 et au printemps 96 sur six lots provenant de sites géographiques différents et élevés, pour certains d'entre eux, selon des modes de cultures différents. Il s'agissait d'apporter des éléments d'informations sur la possibilité de différencier des huîtres par des critères sensoriels objectifs. Cette étude présente la méthodologie utilisée pour établir une liste de descripteurs sensoriels permettant de caractériser ce produit. Les épreuves, de type profil sensoriel, menées par un jury entraîné constitué de 20 personnes, ont montré qu'il est possible de discriminer les lots étudiés, grâce à certains...
Tipo: Text
Ano: 1996
URL: https://archimer.ifremer.fr/doc/00104/21537/19118.pdf

Feeding responses of Crassostrea gigas (Thunberg) to inclusion of different proportions of toxic dinoflagellates in their diet
Provedor de dados: 5
Autores: Bardouil, Michele; Bohec, Madeleine; Bougrier, Serge; Lassus, Patrick; Truquet, Philippe.
An experimental flow-through system allowing determination of the feeding behaviour of individual molluscs was used to study oysters exposed to mixed diets composed of varying proportions of the diatom Thalassiosira weissflogii and two strains (toxic and nontoxic) of the dinoflagellate Alexandrium larnarense. Our results show that, when compared to a T. weissflogii unialgal diet, even a diatomltoxic dinoflagellate ratio as low in biomass as 90/10 reduced clearance rates and biodeposit production by oysters. Consumption was slightly but significantly decreased for a 50/50 diatomltoxic dinoflagellate mixture. For the toxic dinoflagellate unialgal diet, ingestion, absorption and consumption were completely inhibited. Thus, the inclusion of low amounts of...
Tipo: Text
Palavras-chave: Crassostrea gigas; Thalassiosira weissflogii; Alexandrium tamarense; Ecophysiologie; Toxine paralysante des coquillages; Crassostrea gigas; Thalassiosira weissflogii; Alexandrium tamarense; Ecophysiology; Paralytic shellfish poison.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00017/12788/9729.pdf

Evalution du bilan énergétique de l'huître creuse, Crassostrea gigas, en baie de Marennes-Oléron (France)
Provedor de dados: 5
Autores: Soletchnik, Patrick; Goulletquer, Philippe; Heral, Maurice; Razet, Daniel; Geairon, Philippe.
This ecophysiological study was conducted on the Japanese oyster (Crassostrea gigas) reared in Marennes-Oléron bay (France), in May 1992. Measurements were achieved using natural food conditions on three different days (a, b, c) at different tide levels (coefficient of 49, 57, and 88). Total particulate matter was continuously monitored with a micro-computer and a turbidimeter probe. The "consumption" function was calculated using a new formula allowing for particulate leakage prior to the pre-ingestive particle sorting. This particle leakage represents a passive loss of particles flowing through the branchial filter. Comparisons of the consumption and absorption rates of organic matter and chlorophyll a showed significant differences between seston...
Tipo: Text
Palavras-chave: Crassostrea gigas; Consumption rate; Selection efficiency; Absorption rate; Energetic budget; Organic matter; Chlorophyll alpha; Marennes-Oleron bay.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-3086.pdf

Etude du Bassin de Douarnenez. Périmètre expérimental de Kerveldréach. Etude de l'organisation des aquifères par prospection électrique
Provedor de dados: 5
Autores: Faillat, J.p.; Somlette, L.; Sicard, T.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00104/21476/19057.pdf

Contribution à l'étude du cycle de Marteilia refringens, parasite de l'huître plate, Ostrea edulis
Provedor de dados: 5
Autores: Zerabib, Maamar.
Pour le premier point, l'étude des maladies chez les bivalves marins repose jusqu'à présent essentiellement sur l'histologie classique, parfois 'couplée ' à la inicroscopie électronique à transmission.  Toutefois, ces techniques, consommatrices de temps, présentent des limites notamment au niveau de la capacité de traitement de nombreux échantillons. Il semble alors, indispensable aujourd'hui de développer de nouveaux outils de diagnostic basés notamment sur l'immunologie et la biologie moléculaire. Pour le second point, le développement de population d'animaux "résistants" à certaines pathologies peut constituer une voie très prometteuse, dont l'exploration permettra d'obtenir un moyen de lutte contre les maladies des mollusques marins. La reproduction de...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00428/53917/55039.pdf

Rapport d'activité 1996 du Laboratoire Environnement Littoral de La Tremblade
Provedor de dados: 5
Autores: Masson, Daniel.
Rapport d'activité 1996 du Laboratoire Environnement Littoral de La Tremblade.
Tipo: Text
Palavras-chave: Environnement; Surveillance milieu; Microbiologie; Bactériologie; Rapport activité.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00071/18257/15820.pdf

La qualité du milieu marin littoral normand du Tréport au Mont - Saint - Michel
Provedor de dados: 5
Autores: Grouhel-pellouin, Anne; Etourneau, Claude; Lamort, Laure.
This report presents an evaluation of Normandy's coastal quality. Datas for this evaluation come from chemical, microbial and phytoplanktonic monitoring networks carried out by IFREMER in the marine environment, microbial survey of marine swimming and shellfish collecting areas carried out by DDASS (Health Office), analysis of local sewage treatment systems conduced by SATESE, and surveys of river's water quality carried out by DDE (Equipment Office). Among each area, pollution sources are identified and present or future actions to improve marine water quality are listed according to shellfishing or swimming vocation of these areas.
Tipo: Text
Palavras-chave: Normandie; Qualité; Littoral; Réseaux de surveillance; Physico-chimie; Microbiologie; Phytoplancton; Radioactivité; Normandy; Quality; Coastal Area; Monitoring Network; Chemical; Microbiology; Phytoplankton; Radioactivity.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00102/21347/18970.pdf

Journées REPHY 1996. Compte-rendu détaillé
Provedor de dados: 5
Autores: Belin, Catherine.
SOMMAIRE - 1- Les réseaux de surveillance du phytoplancton et des phycotoxines à l’étranger, en particulier en Europe 2- Conclusions du comité d’évaluation du PNEAT (Programme National Efflorescences Algales Toxiques). 3 - Stratégie ‘flore totale’ (dénombrement de toutes les espèces phytoplanctoniques). 4 - Point sur les méthodes utilisées dans REPHY. 5- Taxinomie du phytoplancton / assurance qualité. 6- Traitement des données populations phytoplanctoniques en Languedoc-Roussillon. 7- Présentation du travail de thèse en cours sur les variabilités temporelles et spatiales d’une micro-algue toxique Dinophysis spp. 8- Présentation du rapport annuel du laboratoire côtier de Nantes pour les résultats REPHY. 9- Présentation du poster ‘Suivi du phytoplancton en...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00075/18592/16146.pdf

Dosage par C.L.H.P. des toxines paralysantes de coquillages contaminés par Alexandrium minutum en rivières de Morlaix et de la Penzé en 1994
Provedor de dados: 5
Autores: Masselin, Pierre; Le Saux, Jean-claude; Le Gal, Dominique; Lassus, Patrick.
PSP toxin levels in cultivated mussels and oysters were monitored over a one year period (1994) in two keys areas, the Morlaix and la Penzé estuaries (Northern Brittany, France).Toxins were detected by IP-HPLC and results compared to those given by the bioassay routinely used by IFREMER Coastal Laboratories. Shellfish contamination seems closely related to A. minutum occurences (the minimum concentration of cells resulting in toxin detection in mussels was 400 cells/I). Toxins were depurated rapidly initially, and subsequently at a slower rate, such that residual toxin levels were detected in mussel digestive glands three months later. Maximum toxin levels were lower than the quarantine treshold level in Morlaix river, but exceeded this level (maximum: 290...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00119/23016/20846.pdf

Physiologie de la maturation et de la ponte chez l'huître creuse Crassostrea gigas
Provedor de dados: 5
Autores: Soletchnik, Patrick; Geairon, Philippe; Razet, Daniel; Goulletquer, Philippe.
The physiological ecology of the Pacific oyster Crassostrea gigas was studied using a conditioning delayed by temperature. Experiments were carried out on five batches and 2 year-classes classified into 6 maturation stages. The scope for growth concerning the stages N*5 and 6 was nearly zero while positive for early stages as well as for the post-spawning stage. Moreover, the 1 year-old oysters showed a significant lowered scope for growth (-110 J/h) compared to adult oysters (-14 J/h), therefore demonstrating the increased sensitivity of young oysters to stressful environmental conditions. By comparing the experimental results with the current models, developed on immature oysters, facilitates the model parameters spécifications during gametogenesis. For...
Tipo: Text
Palavras-chave: Modelling; Ecophysiology; Mortality; Crassostrea gigas; Modèle; Ecophysiologie; Mortalité; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-1643.pdf

REMORA. Bilan national de la croissance de l'huître creuse de 1993 à 1995
Provedor de dados: 5
Autores: Goyard, Emmanuel.
What is REMORA? REMORA &amp;#8722;REseau MOllusques du département Ressources Aquacoles&amp;#8722; (Aquaculture Resources Department Mollusc Network) is a surveillance network dedicated to the growth of hollow oysters Crassostrea gigas. In the past and in most production areas, observations were made on a regular basis. In 1993, homogenising experimental protocols between the different laboratories involved was decided, as well as using a common initial oyster batch, therefore organizing a network covering all of the French coasts.This network aims at providing, each year, the production's basic characteristics found in main oyster beds (growth reference). It also better characterizes variations and shows potential tendencies.
Tipo: Text
Palavras-chave: Crassostrea gigas; Growth; Network of monitoring; Oyster culture.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-1756.pdf

Le Musclomètre : Mesure de la vitalité du muscle adducteur chez les juvéniles de coquille Saint-Jacques
Provedor de dados: 5
Autores: Croguennec, Eric.
Les eaux côtières françaises, depuis les années 60, ont vu les gisements de coquilles Saint-Jacques régresser jusqu'à atteindre un niveau moyen de 25 t environ en Rade de Brest alors que le tonnage débarqué était de 1520 tonnes en 1962-63. Devant ce déclin, dans les années 80, un programme de repeuplement des gisements de coquilles St-Jacques en Rade a vu le jour. L' objectif principal de ce programme était de forcer le recrutement. C'est à dire, de remonter le stock reproducteur, par apport de juvéniles, à un niveau tel que la pêche pourrait redémarrer. Ce premier programme a été réorienté fin des années 80 début des années 90 de tel sorte que l'on est passé d'un objectif de repeuplement (effet induit des géniteurs) à une aquaculture extensive par la...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00446/55726/57378.pdf

Caractérisation de la pêcherie de lamproie marine Petromyzon marinus marinus, Linné (1758) en Loire-aval pour les saisons 1988 et 1989
Provedor de dados: 5
Autores: Grellier, Patrick.
The downstream part of the Loire river is divided into three regulation zones (marine, fluvial and mixed zones) where a traditional fishery for sea lamprey is practised. More than one hundred professional fishermen (either marine or fluvial statute) are interested in this activity during winter and spring to catch lampreys on their trip to the up stream spawning areas. The fluvial contraints (fluvial discharge, tidal current etc...) generate two types of exploitation : the osier trap and the trammel net. For both studied years 1988 and 1989, total catches are estimated to 37,9 T (88) and 50,2 T (89), indicating the economical value of this fishery, amounting for 2,6 MF (88) and 3,3 MF (89). This species is dedicated to the market of the Aquitaine region...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00085/19617/17257.pdf

Effects of Caulerpa taxifolia secondary metabolites on the embryogenesis, larval development and metamorphosis of the sea urchin Paracentrotus lividus
Provedor de dados: 5
Autores: Pedrotti, Ml; Marchi, B; Lemee, R.
The biological activity of a methanolic extract of the introduced species Caulerpa taxifolia and caulerpenyne (main secondary metabolite of the alga) was tested on embryogenesis, pluteus and metamorphosis stages of the sea urchin Paracentrotus lividus. The bioassays revealed different levels of toxicity according to the egg and larval development stages. Larval development was the most sensitive phase, followed by gastrulation. Methanolic extracts at a concentration of 1.0 mu g ml(-1) and caulerpenyne at a concentration of 100 ng ml(-1) (300 nM) tested on young larvae (4-arm stage) cause death within four hours. The same concentrations of methanolic extract, tested on eggs, blocked cleavage up to early blastula stage, whereas a double concentration of...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20484/18154.pdf

Etude préparatoire à l'introduction du pétoncle de baie, Argopecten irradians, en France
Provedor de dados: 5
Autores: Le Bouquin, Sophie.
La conchyliculture française est très largement dominée par l'élevage de l'huître japonaise. Le recours à l'introduction d'espèces nouvelles pourrait permettre aux professionnels de diversifier leur production. Après avoir étudié la manière dont se réalise une introduction d'espèce et les risques qui en découlent, l'auteur décrit les principales caractéristiques de l'espèce retenue : le pétoncle de baie. La dernière partie rassemble les données sur l'espèce, primordiales à l'élaboration d'un dossier d'introduction européen, et précise les sitespotentiels de son élevage sur le littoral français
Tipo: Text
Palavras-chave: Conchyliculture; Biologie; Introduction d'animaux.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00449/56096/57631.pdf

Mid-Atlantic Ridge: hydrothermal Fluxes at the Azores Triple Junction
Provedor de dados: 5
Autores: Bougault, Henri; German, C; Miranda, M; Marflux/atj, Participants.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00070/18112/15660.pdf

L'écotoxicologie appliquée au milieu marin
Provedor de dados: 5
Autores: Maurice, Manuelle.
In this report we present the main scientific orientations taken until now in France and under the world conceming marine ecotoxicology. We discuss successively the state of the environment in France, the toxicity of pollutants on marine organisms, the monitoring of pollutants and the technics used to measure the biological effects on marine ecosystems.
Tipo: Text
Palavras-chave: Ecotoxicologie marine; Écosystèmes; Effets biologiques; Bio-surveillance; Polluants chimiques; Marine ecotoxicology; Chemicals; Ecosystems; Biological effects; Bio-monitoring.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00123/23412/21239.pdf

Ecology of open populations
Provedor de dados: 5
Autores: Young, C; Ebert, T.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00094/20508/18178.pdf

Approaches for zoning of coastal areas with reference to Mediterranean aquaculture
Provedor de dados: 5
Autores: PAP/RAC.
Marine aquaculture, as a relatively new sector capable of economic growth and benefits, is now moving beyond its traditional stages to the point where it needs to have a recognisable and effective position - both in development and regulatory terms. In that context selection of the site is of vital importance since the quality and characteristics of the site are essential for both farming performance and reducing the negative impact on the environment. Site selection procedures are closely related to the coastal zone planning and management policy, especially in a climate of competition for coastal space and resources use. The document suggests that coastal zoning relevant to aquaculture must be included in the national policy and with the goals defined at...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00391/50189/50813.pdf

Nutrition azotée du phytoplancton dans le panache de la Seine en période estivale
Provedor de dados: 5
Autores: L'Helguen, Stéphane.
Des quantités très importantes d'azote à la fois minéral (nitrate, nitrite, ammonium) et organique (dissous et particulaire) sont déversées par la Seine dans les eaux côtières. Ces apports peuvent modifier de manière importante le fonctionnement des écosystèmes pélagique et benthique en Baie de Seine. Ils peuvent, en particulier, en enrichissant le milieu en azote, intensifier les processus d'absorption du phytoplancton et déclencher des proliférations algales. La matière organique ainsi produite et la matière organique directement importée dans le système peuvent accroître fortement les processus de régénération dans la colonne d'eau. Les apports d'azote minéral peuvent, par ailleurs, lorsqu'ils s'effectuent sous la forme d'ammonium (rejets urbains ou...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00104/21490/19071.pdf

Matière en suspension et sédimentation dans la lagune de Thau
Provedor de dados: 5
Autores: Pichot, Paul; Deslous-paoli, Jean-marc; Juge, Claude.
Thau is a mediterranean lagoon with a large productive stock of molluscs (oysters, mussels) cultivated on suspended tines and colonised by epibionta (ascidia and others invertebrates, algae, etc ... ). This study was developed as part of the PNOC-OXYTHAU.programme. Its aim was to analyze the effects of oyster farrning on water-mass surrounding structures loaded with suspended molluscs and proximal watermass separating these structures. This study concems particulate suspended matter and deposits of particulate organic matter on the bottom after sedimnentation. Biochemical measurements were carried out for nitrogen, carbon,  proteins, lipids and carbohydrates. ln order to estimate sedimentaton, bottom sediment traps were used
Tipo: Text
Palavras-chave: Méditérranée; Etang de Thau; Matière en suspension; Azote; Carbone; Protites; Lipides; Glucides; Sédimentation; Mediterranean; Lagoon of Thau; Particulate suspended mattter; Nitrogen; Carbon; Proteins; Lipids; Carbohydraes; Sedimentation.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00425/53662/54501.pdf

Induction of metamorphosis in Paracentrotus lividus larvae (Echinodermata, Echinoidea)
Provedor de dados: 5
Autores: Gosselin, P; Jangoux, M.
Various experiments were performed to investigate the inductive effect of some biotic agents - adult conspecifics, macroalgae of the genera Laminaria and Enteromorpha and detrital particles - on the onset of metamorphosis in competent larvae of the echinoid Paracentrotus lividus. Adult conspecifics and laminarians did not induce larvae to metamorphose. Detrital particles always had a high inductive power, provided that contact occurred between larvae and particles. The inductive effect of enteromorph algae was seasonal, and metamorphosis was induced either through direct contact with the alga or with a surface previously conditioned by the alga, as well by placing larvae in water previously conditioned by the alga.
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00096/20748/18377.pdf

REVOLUTION IN SCIENTIFIC PUBLICATION
Provedor de dados: 79
Autores: Barraviera,Benedito.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200001

COMPARATIVE MORPHOLOGICAL ANALYSIS OF THE REPRODUCTIVE TRACT OF HONEYBEE DRONES DESCENDED FROM WORKERS AND QUEENS IN Apis mellifera (Linnaeus, 1758) (Hymenoptera, Apidae)
Provedor de dados: 79
Autores: Barnet,J. P. M. G.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100011

STUDY OF THE RELATIONSHIP BETWEEN Galleria mellonella (LEPIDOPTERA: PYRALIDAE) AND THE PARASITOID Apanteles galleriae (HYMENOPTERA: BRACONIDAE)
Provedor de dados: 79
Autores: Ribeiro,J. C.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100009

BIOINSECTICIDE ACTION OF THE VENOM OF AFRICANIZED BEES Apis mellifera LINNAEUS 1758 (HYMENOPTERA: APIDAE): I -THE MOST SUSCEPTIBLE AGE OF Diatraea saccharalis FABRICIUS 1794 (LEPELETIER: PYRALIDAE) EGGS TO THE VENOM ACTION
Provedor de dados: 79
Autores: BONFANTI-ALMEIDA,J.C.; GOBBI,N.; PALMA,M.S.
The present paper aimed at testing the action of non-lyophilized venom of Africanized bees Apis mellifera through topical applications on Diatraea saccharalis egg masses. The CL50, DL50 and the most susceptible age of eggs to the venom topic application were also determined. Three-day-old eggs were the most susceptible to the venom action with CL50 equal to 8.6 mg/ml and DL50 equal to 0.173 mg/mass. The venom loses its action after being stored for 15 days.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Venom; Africanized bee; Apis mellifera; Eggs; Sugar-cane borer; Diatraea saccharalis.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100006

OCCURRENCE OF TETRODOTOXIN AND PARALYTIC SHELLFISH TOXINS IN Phallusia nigra (TUNICATA, ASCIDIACEA) FROM THE BRAZILIAN COAST
Provedor de dados: 79
Autores: FREITAS,J. C.; OGATA,T.; VEIT,C.H.; KODAMA,M.
We have already shown the presence of guanidine neurotoxins in calcareous red algae and mussels collected in the São Sebastião channel (State of São Paulo, Brazil). It is known that these neurotoxins comprise more than 25 analogues such as tetrodotoxin (TTX) and derivatives plus the paralytic shellfish toxins (PST) found in a variety of marine, freshwater and amphibious species. Filter feeding animals generally possess large amounts of these neurotoxins. The tunicates are sessil marine animals with a high rate of sea water filtration. The tunics and siphons of 50 specimens of Phallusia nigra were dissected and the visceral organs were immersed in methanol containing acetic acid 0.02 N pH 5.0. The extract was prepared by homogenization, filtration and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phallusia nigra; Tunicate; Paralytic shellfish toxins; Tetrodotoxin.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100004

EVOLUTION OF SCORPIONISM BY Tityus bahiensis (PERTY) AND Tityus serrulatus LUTZ AND MELLO AND GEOGRAPHICAL DISTRIBUTION OF THE TWO SPECIES IN THE STATE OF SÃO PAULO - BRAZIL
Provedor de dados: 79
Autores: EICKSTEDT,V. R. D. von; RIBEIRO,L. A.; CANDIDO,D. M.; ALBUQUERQUE,M. J.; JORGE,M. T.
Two scorpion species of medical importance occur in the state of São Paulo: the native brown scorpion Tityus bahiensis (Perty) and the highly toxic yellow scorpion Tityus serrulatus Lutz and Mello, which was brought into the state. The study of accident data of patients admitted to the Vital Brazil Hospital of the Butantan Institute from l982 to l993 revealed a gradual increase in stings by T. serrulatus in contrast to those by T. bahiensis with a variation from 5.2% to 29.7%. Also, an inventory of the scorpions sent to the Laboratory of Venomous Arthropods of the Butantan Institute over the same period showed an expressive growth in the number of T. serrulatus specimens in contrast to that of T. bahiensis. These data suggest a significative proliferation...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scorpionism; Scorpion control; Scorpiones; Tityus bahiensis (Perty); Tityus serrulatus Lutz and Mello.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200003

ANTITUMOR EFFECT OF SNAKE VENOMS
Provedor de dados: 79
Autores: SILVA,R. J. DA; FECCHIO,D.; BARRAVIERA,B.
The search for biological antitumor agents has been pursued for over half a century. Snake venom has been shown to possess a wide spectrum of biological activities. The objectives of the present review are to evaluate the existing controversies on this subject published in a number of papers and to propose probable explanations for the phenomena observed. We reported our results obtained in a study, in which we evaluated the action of the venoms of Crotalus durissus terrificus and Bothrops jararaca on Ehrlich ascites tumor cells. We noticed an important antitumor effect, mainly with Bothrops jararaca venom, as well as an increase in the functional activity of macrophages. We also observed an increase in the number of mononuclear and polymorphonuclear cells...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cancer; Inflammation; Venom; Snakes; Crotalus durissus terrificus; Bothrops jararaca.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200002

CHARACTERIZATION OF THE BIOLOGICAL ACTIVITIES OF THE Crotalus durissus ruruima YELLOW AND WHITE VENOMS COMPARED WITH Crotalus durissus terrificus VENOM:NEUTRALIZING EFFECT OF THE ANTIVENOMS AGAINST Crotalus durissus terrificus VENOM
Provedor de dados: 79
Autores: Santos,M. C. dos.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200009

ATTAINMENT AND EVALUATION OF ANTISERA RAISED AGAINST IRRADIATED WHOLE CROTALIC VENOM OR CROTOXIN IN 60 Co SOURE
Provedor de dados: 79
Autores: Paula,R. A. de.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200012

UNIVERSITY-INDUSTRY: THE NECESSARY PARTNERSHIP
Provedor de dados: 79
Autores: Macedo,Arthur Roquete de.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100001

THE EVOLUTION OF SCORPIONISM IN BRAZIL IN RECENT YEARS
Provedor de dados: 79
Autores: LOURENÇO,W. R.; CLOUDSLEY-THOMPSON,J. L.; CUELLAR,O.; EICKSTEDT,V. R. D. VON; BARRAVIERA,B.; KNOX,M. B.
In this paper further information concerning the ecological and biogeographical aspects of scorpionism is presented. Some of the information already outlined in three previous publications(10,14,16) is assessed, and new data given concerning the pattern of distribution presented by Tityus serrulatus in Brazil. Some new ideas are also proposed regarding the possible evolutionary advantages and disadvantages of parthenogenesis versus sexuality in both the short-term and the long-term.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scorpionism; Brazil; Tityus serrulatus.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200005

LINAMARIN: THE TOXIC COMPOUND OF CASSAVA
Provedor de dados: 79
Autores: CEREDA,M. P.; MATTOS,M.C.Y.
Cassava is a widely grown root crop which accumulates two cyanogenic glucosides, linamarin and lotaustralin. Linamarin accounts for more than 80% of the cassava cyanogenic glucosides. It is a ß-glucoside of acetone cyanohydrin and ethyl-methyl-ketone-cyanohydrin. Linamarin ß-linkage can only be broken under high pressure, high temperature and use of mineral acids, while its enzymatic break occurs easily. Linamarase, an endogenous cassava enzyme, can break this ß-linkage. The enzymatic reaction occurs under optimum conditions at 25ºC, at pH 5.5 to 6.0. Linamarin is present in all parts of the cassava plant, being more concentrated on the root and leaves. If the enzyme and substrate are joined, a good detoxification can occur. All the cassava plant species...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyanide; Cassava; Linamarin; Cyanogenic glucoside; Residues; Waste water; Culinary and industrial uses.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100002

PURIFICATION AND PROPERTIES OF A CARDIOACTIVE TOXIN, CARDIOLEPUTIN, FROM STONEFISH, Synanceja verrucosa
Provedor de dados: 79
Autores: ABE,T.; SUMATORA,M.; HASHIMOTO,Y.; YOSHIHARA,J.; SHIMAMURA,Y.; FUKAMI,J.
Cardioleputin, a new cardioactive toxin, was purified from a stonefish venom using column chromatographies. The purified toxin was found to be an unstable protein that was susceptible to heat and freeze-thawing. This protein showed to have a molecular size of 46,000 daltons, and its amino acid composition was rich in serine and glycine, but low in basic amino acids. The crude venom induced a sudden drop in blood pressure and heart rate of rats right after administration. Both the blood pressure and heart rate returned to their original values as time elapsed, and thereafter continued to show a gradual decrease. In addition, crude venom actively affected the contractile response and suppressed the heart rate of guinea pig atria. The purified toxin caused...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cardioactive toxin; Cardioleputin; Synanceja verrucosa.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200006

IRRADIATION OF CROTOXIN IN AQUEOUS SOLUTION:THE ROLE OF THE MAIN REACTIVE SPECIES IN STRUCTURAL AND BIOLOGICAL ALTERATIONS
Provedor de dados: 79
Autores: Andriani,E. P.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200014

A SENSITIVE AND SPECIFIC IMMUNOASSAY FOR THE MEASUREMENT OF THE ANTIBODIES PRESENT IN HORSE ANTIVENOMS ENDOWED WITH THE CAPACITY TO BLOCK THE PHOSPHOLIPASE A2-DEPENDENT HEMOLYSIS INDUCED BY SNAKE VENOMS
Provedor de dados: 79
Autores: ROCHA CAMPOS,A. C. M.; FREITAS,M. C. W. DE; YAMAGUCHI,I. K.; MARCELINO,J. R.; DIAS DA SILVA,W.
Phospholipase A2 (PLA2), a component of most snake venom toxins, cleaves 3-sn-phosphoglycerides releasing lysophosphatidyl-choline. The indirect quantitative assay method for PLA2 was standardized for specific antivenom titration in a fast and sensitive assay by the similarity with the hemolysis induced by PLA2 and by complement system in sheep erythrocytes. The curves obtained by plotting the degree of hemolysis against the doses of snake venom are concave to the abscissa axis following an equation similar to that previously described for the hemolysis induced by the C system. We observed that venoms of some Bothrops, Crotalus and Micrurus species contained around 1 x 10&lt;img SRC="http:/img/fbpe/jvat/v2n2/image603.gif"&gt; to 10&lt;img...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: PLA2; Snake venoms; Immunoassay; Antivenoms; Indirect hemolysis.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200004

BIOCHEMICAL AND IMMUNOLOGICAL ALTERATIONS OF 60 Co IRRADIATED Bothrops jararacussu VENOM
Provedor de dados: 79
Autores: Spencer,P. J.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200011

CHEMICAL COMMUNICATION IN Apis mellifera: TEMPORAL MODULATION OF ALARM BEHAVIORS
Provedor de dados: 79
Autores: COSTA,H.; TALORA,D. C.; PALMA,M.S.; CHAUD-NETTO,J.
The effect of pheromones and their chemical analogues in honeybee alarm behaviors was studied in observation boxes. Defensive behaviors, as follows: a) attraction to scent source, b) elevation of wings in "V", c) abdomen elevation, d) abdomen elevation and pumping and e) first leg pair elevation had been temporarily registered when the following compounds were presented: isoamyl alcohol, octyl alcohol, benzyl alcohol, n-butyl acetate, n-octyl acetate, isopentyl acetate, benzyl acetate and 2-heptanone. The results were as follows: 1. the bees elicited some characteristic behaviors when chemical alarm messages were presented, 2. agression (stinging) was not completed with any compound tested, probably because there was not a target (visual stimulus), 3. in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apis mellifera; Defensive behavior; Alarm behaviors; Pheromones; Hybrid honey bees; Chemical communication.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100005

MEASUREMENT OF BRADYKININ, PROTEIN, Na+, Cl-, K+, AND Zn++ CONCENTRATIONS IN RAT URINE AFTER INTRAPERITONEAL INJECTION OF Tityus serrulatus VENOM
Provedor de dados: 79
Autores: FERREIRA,L. A. F.; BERGAMASCO,M.; ANGNES,L.
Experiments were carried out in vivo by injecting Tityus serrulatus crude venom in rats followed by biological assays on the isolated guinea-pig ileum, to show the effects of scorpion venom on kallikrein-kinin system. Our results showed effects such as significant decrease of total kinin rate and a decrease of Zn&lt;img SRC="image2229.gif"&gt; , Na&lt;img SRC="image2227.gif"&gt; , Cl&lt;img SRC="image2228.gif"&gt; and K&lt;img SRC="image2227.gif"&gt; ions in rat urine 24 and 48 hours after the injection of Tityus serrulatus crude venom.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Protein; Ions.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200008

BIOCHEMICAL AND IMMUNOLOGICAL CHARACTERIZATION OF THE MAIN PRODUCTS OF CROTOXIN IRRADIATION
Provedor de dados: 79
Autores: Nascimento,N.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200015

HIGH-PERFORMANCE GEL FILTRATION PATTERNS OF VENOMS  FROM THREE SPECIES OF WASPS OF THE GENUS Polybia  (HYMENOPTERA, VESPIDAE)
Provedor de dados: 79
Autores: PALMA,M. S.; MANZOLI-PALMA,M. F.; GOBBI,N.
The profiles of high-performance gel filtration of venoms from Polybia paulista, Polybia ignobilis and Polybia occidentalis occidentalis showed 13 peaks distributed among the three species. These profiles presented similarities that permitted the chromatographic characterization of the genus Polybia and differences that permitted the identification of each species studied. Thus, the comparative analysis of chromatographic profiles of high-performance gel filtration of venoms may be used as an auxiliary tool in taxonomic studies of Polybia wasps.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vespidae; Chromatographic; Sac of venom; Polybia.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200007

IN VITRO ACTIVITY OF DUVERNOY'S GLAND SECRETIONS FROM THE AFRICAN BOOMSLANG, Dispholidus typus, ON NERVE-MUSCLE PREPARATIONS
Provedor de dados: 79
Autores: YOUNG,R. A.
In vitro toxicity assays were performed using Duvernoy's gland secretions from the African boomslang, Dispholidus typus, and isolated rat duodenum and frog sciatic nerve-gastrocnemius muscle preparations. The Duvernoy's gland secretions of D. typus had no apparent effect on the frog sciatic nerve-gastrocnemius muscle preparation. The secretions produced an increase in baseline tonus and an increase in the rhythmic contractile force of the rat duodenum, but had no significant effect on the frequency of contractions. Atropine sulfate (10&lt;img SRC="Image2369.gif" WIDTH="12" HEIGHT="12"&gt; M) effectively antagonized the excitatory effects of the Duvernoy's gland secretions at concentrations 200 µg/ml. Although the coagulopathic effects of D. typus are well...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Duvernoy's gland; African boomslang; Dispholidus typus.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100007

PHARMACOLOGICALLY ACTIVE SUBSTANCES OF THE SEA ANEMONE Bunodosoma caissarum , CORRÊA, 1964 (CNIDARIA, ANTHOZOA, ACTINIIDAE)
Provedor de dados: 79
Autores: Malpezzi,E. L. A.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100008

EFFECT OF Crotalus durissus terrificus (LAURENTI, 1768) AND Bothrops jararaca (WIED, 1824) VENOMS ON THE EVOLUTION OF EHRLICH ASCITES TUMOR
Provedor de dados: 79
Autores: Silva,R. J. da.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200013

USE OF AN ELISA ASSAY TO EVALUATE VENOM, ANTIVENOM, IgG AND IgM HUMAN ANTIBODY LEVELS IN SERUM AND CEREBROSPINAL FLUID FROM PATIENTS BITTEN BY Crotalus durissus terrificus IN BRAZIL
Provedor de dados: 79
Autores: BARRAVIERA,B.; SARTORI,A.; PEREIRA DA SILVA,M. F.; KANENO,R.; PERAÇOLI,M. T. S.
A sandwich-type ELISA technique for specific and sensitive detection of Crotalus durissus terrificus venom antigens, horse-antivenom, human IgG and IgM antibodies was set up. Sixteen patients, 13 males and 3 females aged between 13 to 63 years (mean 33 ± 15) bitten by Crotalus durissus terrificus snakes were studied. Of the 15 patients, 6 had previously received anti-Crotalus venom and no seric venom was detected. For the other 9 patients studied, the venom levels ranged from 2 to 108 ng/ml according to the severity of each case. Seric antivenom was detected up to 44 days after the bite. IgM human antibody levels against Crotalus venom were higher between 3 and 18 days after specific treatment. IgG human antibody levels against Crotalus venom were detected...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Enzyme-linked immunosorbent assay; Crotalus durissus terrificus; Venom; Antivenom; Antibodies; Cerebrospinal fluid.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100003

FUNCTION AND MORPHOLOGICAL STUDY OF ACUTE TUBULAR NECROSIS EXPERIMENTALLY INDUCED IN WISTAR RATS BY AFRICANIZED BEE VENOM
Provedor de dados: 79
Autores: Reis,M. A.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000200010

INFLUENCE OF ENVIRONMENTAL FACTORS AND HANDLING PROCEDURES ON NATURAL MATING OF AFRICANIZED HONEYBEE QUEENS (Apis mellifera L.) ( HYMENOPTERA, APIDAE)
Provedor de dados: 79
Autores: Silva,E. C. A.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-79301996000100010

Management options for control of irrigation-induced erosion
Provedor de dados: 18
Autores: Sojka, R.E.
Tipo: Article
Palavras-chave: Erosion; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/661/1/907.pdf

Response to Selection for Reduced Grass Tetany Potential in Crested Wheatgrass
Provedor de dados: 18
Autores: Asay, K.H.; Mayland, H.F.; Clark, D.H.
Tipo: Article
Palavras-chave: Chemistry; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/662/1/908.pdf

Polyacrylamide sprayed on soil surfaces can stabilize soil aggregates
Provedor de dados: 18
Autores: Lehrsch, G.A.; Kincaid, D.C.; Lentz, R.D.
Tipo: Conference or Workshop Item
Palavras-chave: Water-soluble PAM (WSPAM); Soil; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/872/1/894.pdf

Extractable Potassium and Soluble Calcium, Magnesium, Sodium, and Potassium in Two-Whey-Treated Calcareous Soils
Provedor de dados: 18
Autores: Robbins, C.W.; Hansen, C.L.; Roginske, M.F.; Sorensen, D.L.
Tipo: Article
Palavras-chave: Whey; Calcareous soil; Potassium; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/665/1/910.pdf

Cheese whey effects on surface soil hydraulic properties
Provedor de dados: 18
Autores: Lehrsch, G.A.; Robbins, C.W.
Tipo: Article
Palavras-chave: Whey; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/672/1/923.pdf

Polyacrylamide application to control furrow irrigation-induced erosion
Provedor de dados: 18
Autores: Lentz, R.D.; Sojka, R.E.
Tipo: Conference or Workshop Item
Palavras-chave: Polyacrylamide; Application Strategies; Erosion control; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/863/1/890.pdf

Tillage and nitrogen placement effects on nutrient uptake by potato
Provedor de dados: 18
Autores: Westermann, D.T.; Sojka, R.E.
Tipo: Article
Palavras-chave: Potato; Tillage; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/670/1/921.pdf

Application uniformity of low pressure center pivot equipment
Provedor de dados: 18
Autores: Kincaid, Dennis C.
Tipo: Conference or Workshop Item
Palavras-chave: Center pivot; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/1087/1/952.pdf

Five-year research summary using PAM in furrow irrigation
Provedor de dados: 18
Autores: Lentz, R.D.; Sojka, R.E.
Tipo: Technical Bulletin
Palavras-chave: Water-soluble PAM (WSPAM); Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/1196/1/916.pdf

Comparative toxicity of selenium from seleno-DL-methionine, sodium selenate, and Astragalus bisulcatus in pigs
Provedor de dados: 18
Autores: Panter, K.E.; Hartley, W.J.; James, L.F.; Mayland, H.F.; Stegelmeier, B.L.; Kechele, P.O.
Tipo: Article
Palavras-chave: Animal health; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/667/1/919.pdf

Inexpensive pressure regulation for irrigation pipelines
Provedor de dados: 18
Autores: Kincaid, D.C.; Romspert, D.G.
Tipo: Article
Palavras-chave: Mass Import - unclassified.
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/655/1/897.pdf

Seasonal changes in forage quality of C-3 grasses on sagebrush grasslands
Provedor de dados: 18
Autores: Mayland, H.F.; Shewmaker, G.E.
Tipo: Conference or Workshop Item
Palavras-chave: Forage quality; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/939/1/950.pdf

Polyacrylamide in furrow irrigation, an erosion control breakthrough
Provedor de dados: 18
Autores: Sojka, R.E.; Lentz, R.D.
Tipo: Conference or Workshop Item
Palavras-chave: Polyacrylamide; Erosion control; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/1079/1/904.pdf

Lentil water use and fallow water loss in a semiarid climate
Provedor de dados: 18
Autores: Aase, J. Kristian; Pikul Jr, Joseph L.; Prueger, John H.; Hatfield, Jerry L.
Tipo: Article
Palavras-chave: Bean / dry bean; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/671/1/922.pdf

Seasonal changes in flow and nitrate-N loss from subsurface drains
Provedor de dados: 18
Autores: Bjorneberg, D.L.; Kanwar, R.S.; Melvin, S.W.
Tipo: Article
Palavras-chave: Mass Import - unclassified.
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/663/1/909.pdf

A PAM primer: A brief history of PAM and PAM-related issues
Provedor de dados: 18
Autores: Sojka, R.E.; Lentz, R.D.
Tipo: Technical Bulletin
Palavras-chave: Water-soluble PAM (WSPAM); Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/1194/1/914.pdf

Irrigation water quality alters furrow erosion and infiltration
Provedor de dados: 18
Autores: Lentz, Rick; Sojka, Bob.
Tipo: Article
Palavras-chave: Erosion; Infiltration; Erosion; Water quality; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/684/1/947.pdf

Modeling transport of bromide in furrow-irrigated field
Provedor de dados: 18
Autores: Izadi, Behzad; King, Bradley; Westermann, Dale T.; McCann, Ian.
Tipo: Article
Palavras-chave: Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/656/1/898.pdf

Drop size distributions for irrigation sprinklers
Provedor de dados: 18
Autores: Kincaid, D.C.; Solomon, K.H.; Oliphant, J.C.
Tipo: Article
Palavras-chave: Sprinkler irrigation; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/660/1/906.pdf

Polyacrylamide as a tool for controlling sediment runoff and improving infiltration under furrow irrigation
Provedor de dados: 18
Autores: Ross, C.W.; Sojka, R.E.; Lentz, R.D.
Tipo: Conference or Workshop Item
Palavras-chave: Polyacrylamide; Sediment; Infiltration management; Runoff; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/921/1/927.pdf

Fallow replacement using indianhead lentils: water use, yield and oil nitrogen
Provedor de dados: 18
Autores: Pikul Jr, J.L.; Aase, J.K.; Cochran, V.L.
Tipo: Conference or Workshop Item
Palavras-chave: Bean / dry bean; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/1078/1/901.pdf

PAM Spray effects on sugarbeet emergence
Provedor de dados: 18
Autores: Lehrsch, G.A.; Kincaid, D.C.; Lentz, R.D.
Tipo: Technical Bulletin
Palavras-chave: Sugarbeet; Seedling emergence; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/1191/1/911.pdf

Irrigation
Provedor de dados: 18
Autores: Sojka, R.E.
Tipo: Book Section
Palavras-chave: Mass Import - unclassified.
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/795/1/918.pdf

Tillage and crop rotation effects on subsurface drainage response to rainfall
Provedor de dados: 18
Autores: Bjorneberg, D.L.; Kanwar, R.S.; Melvin, S.W.
Tipo: Article
Palavras-chave: Tillage; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/673/1/926.pdf

Estimating polyacrylamide concentration in irrigation water
Provedor de dados: 18
Autores: Lentz, R.D.; Sojka, R.E.; Foerster, J.A.
Tipo: Article
Palavras-chave: Water-soluble PAM (WSPAM); Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/666/1/917.pdf

Contour ripping: A tillage strategy to improve water infiltration into frozen soil
Provedor de dados: 18
Autores: Pikul Jr, J.L.; Wilkins, D.E.; Aase, J.K.; Zuzel, J.F.
Tipo: Article
Palavras-chave: Infiltration; Tillage; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/654/1/896.pdf

Furrow irrigation water-quality effects on soil loss and infiltration
Provedor de dados: 18
Autores: Lentz, R.D.; Sojka, R.E.; Carter, D.L.
Tipo: Article
Palavras-chave: Infiltration; Runoff losses; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/652/1/891.pdf

Sprinkler pattern analysis for center pivot irrigation
Provedor de dados: 18
Autores: Kincaid, Dennis C.
Users of center pivot and lateral move  irrigation systems now have  a wide array of sprinkler packages  from which to choose, including the  traditional overhead impact sprinklers,  various types of spray heads and the  LEPA-type furrow emitters. The original  spray heads used simple, smooth or serrated  fixed deflection plates. Recently, rotating  plate or wobble-plate spray heads have  been developed, combining the advantages  of spray heads and rotating sprinklers  — medium-size pattern radius, good  pattern shape and medium-size droplets  at medium to low pressures (10 to 30 psi).
Tipo: Article
Palavras-chave: Center pivot; Sprinkler irrigation; Research methodology; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/1233/1/924.pdf

Spray patterns from fan-type nozzles for applying PAM to soil surfaces
Provedor de dados: 18
Autores: Kincaid, D.C.; Lentz, R.D.; Lehrsch, G.A.
Tipo: Conference or Workshop Item
Palavras-chave: Sprinkler irrigation; Water-soluble PAM (WSPAM); Soil; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/873/1/900.pdf

Mineral Nutrition
Provedor de dados: 18
Autores: Mayland, H.F.; Wilkinson, S.R.
Tipo: Book Section
Palavras-chave: Mass Import - unclassified.
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/737/1/899.pdf

PAM conformation effects on furrow erosion mitigation efficacy
Provedor de dados: 18
Autores: Lentz, R.D.; Sojka, R.E.
Tipo: Technical Bulletin
Palavras-chave: Polyacrylamide; Erosion control; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/1195/1/915.pdf

Derivation of alfalfa and grass reference evapotranspiration
Provedor de dados: 18
Autores: Wright, James L.
Tipo: Conference or Workshop Item
Palavras-chave: Alfalfa; Evapotranspiration; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/862/1/928.pdf

Furrow irrigation erosion and sedimentation: On-field distribution
Provedor de dados: 18
Autores: Trout, T.J.
Tipo: Article
Palavras-chave: Erosion; Sediment; Erosion; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/669/1/920.pdf

Net and Tension infiltration effects of PAM in furrow irrigation
Provedor de dados: 18
Autores: Sojka, R.E.; Lentz, R.D.; Ross, C.W.; Trout, T.J.
Tipo: Technical Bulletin
Palavras-chave: Polyacrylamide; Infiltration management; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/1193/1/913.pdf

Polyacrylamide for furrow-irrigation erosion control
Provedor de dados: 18
Autores: Sojka, Bob; Lentz, Rick.
Tipo: Article
Palavras-chave: Polyacrylamide; Erosion control; Erosion; Practical farm efficiency; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/679/1/940.pdf

Spraydrop kinetic energy from irrigation sprinklers
Provedor de dados: 18
Autores: Kincaid, D.C.
Tipo: Article
Palavras-chave: Sprinkler irrigation; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/659/1/905.pdf

Economics of tillage practices and spring wheat and barley crop sequence in the Northern Great Plains
Provedor de dados: 18
Autores: Aase, J.K.; Schaefer, G.M.
Tipo: Article
Palavras-chave: Small grain; Tillage; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/653/1/895.pdf

Fate of acrylamide monomer following application of polyacrylamide to cropland
Provedor de dados: 18
Autores: Barvenik, F.W.; Sojka, R.E.; Lentz, R.D.; Andrawes, F.F.; Messner, L.S.
Tipo: Technical Bulletin
Palavras-chave: Application Strategies; Mass Import - autoclassified (may be erroneous).
Ano: 1996
URL: http://eprints.nwisrl.ars.usda.gov/1192/1/912.pdf

Aanvullingen en correcties op de FLORON rode lijst (1990)
Provedor de dados: 16
Autores: Meijden, Ruud van der; Duistermaat, Leni (H.).
Between 1990 and 1996 no less than 6 hitherto extinct species have been newly recorded within the Netherlands, whereas 16 endangered species (cat. 1) and 1 potentially vulnerable species (cat. 4) have become extinct. As a thorough revision of the Red Data List will not be published before the end of 1997, it was decided to publish the changes in the List of extinct species only.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526458

Die Evolution der Archaeopulmonata
Provedor de dados: 16
Autores: Harbeck, K.
The Archaeopulmonata are revised, using characters of the shell and the radula, while data concerning the ontogeny and ecological data are also taken into account. Archaeopulmonates are a group of the pulmonates with some conspicuous plesiomorphous character states They differ from the basommatophores and the stylommatophores by the presence of veliger larvae. This is seen in the early ontogenetic development of all members of the families of Archaeopulmonata, which are: Carychiidae, Chilinidae (incl. Latiinae), Siphonariidae, Onchidiidae, Amphibolidae, Otinidae and Ellobiidae (with most numerous genera and species). Altogether 33 genera and 59 recent species are discussed. Fossil material shows that the roots of this stem-group are old. Jurassic and...
Tipo: Article / Letter to the editor
Palavras-chave: Archaeopulmonata; Carychiidae; Chilinidae; Siphonariidae; Onchidiidae; Amphibolidae; Otinidae; Ellobiidae; Evolution; Taxonomy.; 42.73.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317550

A revision of Afanonerion Pierre ex Spire, Parameria Benth. &amp; Hook. f. and Urceola Roxb. (Apocynaceae)
Provedor de dados: 16
Autores: Middleton, David J.
The closely related genera Aganonerion, Parameria and Urceola are revised. One species of Aganonerion is recognised. Three species of Parameria are recognised and Parameriopsis is included in synonymy. Ecdysanthera, Chavannesia, Xylinabaria, Hymenolophus, Parabarium, Pezisicarpus, Xylinabariopsis and Chunechites are included in synonymy of Urceola in which 16 species are recognised. Within Urceola one new species is described.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525344

Review
Provedor de dados: 16
Autores: Kalkman, C.
The first volume of this series was published in 1991, and reviewed in Blumea 38, p. 216. The treatments of volumes 2 and 3 are each based on a doctor’s thesis by the first author, elaborated under supervision of Dr. Panigrahi. Volume 2 contains regional revisions of six genera: Prunus, Prinsepia, Maddenia, Rosa, Malus, and Pyrus. Prunus is taken in the inclusive sense and has 38 species in India, including a number of non-indigenous but cultivated and sometimes naturalized species. Prinsepia and Maddenia have one species each in the region covered. Rosa is a well represented genus in India and 37 species are recognized, including several non-native garden roses. Of the Maloideae only Malus (4 species) and Pyrus (4 species) are treated.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524562

The genus Bridelia (Euphorbiaceae) in Malesia and Indochina – A regional revision
Provedor de dados: 16
Autores: Dressler, Stefan.
A taxonomic revision of Bridelia Willd. for Southeast Asia is presented together with comments on the characters used, the biogeography of the species involved and the phytographic history of the genus. Nineteen species are recognised for the region (one from New Guinea was recently described as new). A key and full descriptions are provided. Maps illustrate the distribution of 15 species. Several distributional patterns were found which mainly reflect ecological requirements. The currently accepted infrageneric delimitation (especially on the sectional level) as proposed by Jablonszky (1915) seems no longer to meet the demands of modern taxonomy and is used here only as a handy working tool, but no attempt is undertaken to propose a new one.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524799

De Tengere distel (Carduus tenuiflorus Curtis) op Wieringen
Provedor de dados: 16
Autores: Smeding, Frans W.
Since 1950, Carduus tenuiflorus has been reported from three different locations in the coastal areas of the Netherlands. At present the species is only extant on the island of Wieringen (province of Noord-Holland), a former island consisting of a moraine of Pleistocene age, now surrounded by polders. Here, the species grows in soil rich in nutrients, on a dike constructed in the period 1594— 1624. In 1993 some tens of plants were found growing near this spot, in a meadow used to graze sheep. However, a survey over the island of Wieringen revealed two new localities. A single plant was found growing in a grassy roadside at a distance of a few hundreds of meters from the known locality, and some tens of plants were found in a roadside with ruderal...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526872

Vooraankondiging Landelijke Variadag
Provedor de dados: 16
Autores: NN.
Op zaterdag 7 december 1996 wordt door de Stichting FLORON en de Koninklijke Nederlandse Botanische Vereniging – Sectie voor Onderzoek en Behoud van de Wilde Flora – een Landelijke Variadag georganiseerd. De bijeenkomst zal worden gehouden in het nieuwe onderkomen van het Rijksherbarium: het Van Steenisgebouw, Einsteinweg 2, Leiden. Zoals gebruikelijk zullen er verschillende floristisch getinte voordrachten gehouden worden en zal er herbariummateriaal van bijzondere vondsten ter bezichtiging worden neergelegd. Wij stellen het zeer op prijs indien u een (korte) voordracht over bijzondere vondsten of gebiedsinventarisaties wilt houden. Voor nadere informatie wordt u verzocht contact op te nemen met het Landelijk Bureau van FLORON, Postbus 9514, 2300 RA...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527951

Hernandiaceae
Provedor de dados: 16
Autores: Duyfjes, Brigitta E.E.
In the circumscription as accepted here, the family consists of four genera of which three occur in Malesia: Gyrocarpus has 1 Malesian species, Hernandia 3, Illigera 9. The general family part of 5 pages includes a paragraph on vegetative anatomy by P. Baas, a paragraph on palynology by R.W.J.M. van der Ham, and a paragraph on phytochemistry by R. Hegnauer. The family, genera, and species are described and annotated; there are keys to the genera and species. Illustration is by three full-page line drawings and two photographs.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/532689

Notulae ad Floram agaricinam neerlandicam — XXX. Melanoleuca polioleuca forma pusilla Boekhout &amp; Kuyper. A new name for Melanoleuca polioleuca forma oreina (Fr.: Fr.) Boekhout
Provedor de dados: 16
Autores: Boekhout, Teun; Kuyper, Thomas W.
A new name is introduced for the small-sized variant of Melanoleuca polioleuca, formerly also recognized as f. oreina. The authors demonstrate that the use of this epithet is undesirable because it is not likely that Agaricus oreinus Fr.: Fr. represents the same taxon.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/532136

Het Amsterdamse Westpoortgebied en het voorkomen van Stippelzegge (Carex punctata Gaudin)
Provedor de dados: 16
Autores: Denters, Ton.
Flora and vegetation of the attractive but man-made excursion site West of Amsterdam is described, with special reference to the habitat of the rare species Carex punctata. The author agrees with Weeda 29 that the Carex punctata localities do not belong to the Armerion maritimae, but rather to a mixture of the Trifolium fragifera-Agrostietum with the Schoenum nigricantis and the Centauriosaginetum. All localities in the Westpoort-area are (positively) influenced by recreation activities.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/528103

Family news
Provedor de dados: 16
Autores: NN.
Pteridaceae — Mr. H. Schneider (formerly of Z, now L) will revise the family under a grant from the Training and Mobility of Researches Program of the European Union.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/533107

Redescription of Schizotricha anderssoni Jaderholm, 1904 (Cnidaria: Hydrozoa) with the description of a new species. Notes on antarctic hydroids, 4
Provedor de dados: 16
Autores: Peña Cantero, A.L.; Vervoort, W.
The type series of Schizotricha anderssoni Jäderhoim, 1904, collected by the Swedish Antarctic Expedition 1901-1903 and deposited in the collections of the Swedisch National Museum, Stockholm, is redescribed. The type series is composed of two species, the species figured by Jäderhoim (1905) is designated the lectotype of Schizotricha anderssoni. The second species, differing from the other species of the genus, is described as Schizotricha jaederholmi spec. nov.
Tipo: Article / Letter to the editor
Palavras-chave: Cnidaria; Hydrozoa; Hydroids; Schizotricha; New species; Antarctic; 42.72.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318644

Thismia lauriana (Burmanniaceae), a new species from Central Kalimantan
Provedor de dados: 16
Autores: Jarvie, J.K.
A new species of the genus Thismia (Burmanniaceae), T. lauriana, from Kalimantan, is described and illustrated.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524561

Microsorum aurantiacum, a new species of microsoroid ferns
Provedor de dados: 16
Autores: Nooteboom, Hans P.
The genus Microsorum, of which a revision will be published in the near future, consists of 50 species, including the here described M. aurantiacum. In Microsorum several groups may be distinguished, all linked by one to several intermediate species. Microsorum aurantiacum finds its nearest allies in the group of species that formerly were distinguished as the genus Phymatosorus. Although the type, which is also the only collection as yet, was collected already in 1909, reportedly with many duplicates, it remained unnamed, sitting in the herbarium of Berlin. It is easily distinguished from its allies in the nearly circular leaves with very narrow lobes.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524686

New and rare species of the subfamily Euphorinae (Hymenoptera, Braconidae) from the Russian Far East
Provedor de dados: 16
Autores: Belokobylskij, S.A.
Eight new species from the Russian Far East are described and figured: Syrrhizus odarka spec. nov., Centistes (Centistes) dmitrii spec. nov., C. (Ancylocentrus) muravievi spec. nov., Syntretus nevelskoii spec. nov., S. komarovi spec. nov., S. hirtus spec. nov., S. miscellus spec. nov., S. makarovi spec. nov. Three genera and species are recorded for the Russian Far East for the first time: Spathicopis flavocephalus van Achterberg, Blacometeorus brevicauda (Hellén), and Falcosyntretus elabsus Papp.
Tipo: Article / Letter to the editor
Palavras-chave: Hymenoptera; Braconidae; Euphorinae; Syrrhizus; Centistes; Syntretus; New species; New records; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/319345

Knolvossestaart (Alopecurus bulbosus Gouan) in Noord-Holland — Fig. 1
Provedor de dados: 16
Autores: Groot, Jaap; Moorsel, René C.M.J. van.
Knolvossestaart ( Alopecurus bulbosus Gouan) is de afgelopen decennia sterk achteruit gegaan. De Atlas van de Nederlandse Flora vermeldt een achteruitgang van 116 naar 61 uurhokken. FLORBASE-1, met daarin de gegevens uit de periode 1975 tot en met 1993, vermeldt de soort voor 31 uurhokken waaronder slechts 1 vindplaats in Noord-Holland, namelijk op Texel. Aanleiding voor het onderzoek naar de recente verspreiding zijn de 2 recente vondsten uit 1994 bij Groet, waarvan 1 tijdens het daar gehouden FLORON-kamp.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527626

Tipula (Lunatipula) transmarmarensis, a new species of Tipulidae from Turkey (Diptera)
Provedor de dados: 16
Autores: Koç, Hasan; Aktaş, Metin; Oosterbroek, Pjotr.
A description is given of Tipula (Lunatipula) transmarmarensis sp. n. from European and Asiatic Turkey. The new species belongs to the fascipennis group and is the first representative of this species group in Turkey. T. (L.) transmarmarensis is closely related to T. (L.) fascipennis Meigen. A comparison between the two species is presented.
Tipo: Article / Letter to the editor
Palavras-chave: Diptera; Tipulidae; Lunatipula; New species; Turkey.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505309

Het voorkomen van Haarfonteinkruid (Potamogeton trichoides Cham. ex Schld.) op het Plistoceen van Zuid-Nederland
Provedor de dados: 16
Autores: Bruinsma, John H.P.
During the last two decades Potamogeton trichoides has increased considerably in the southern part of the Netherlands, on Pleistocene subsoils, in the middle and lower stretches of lowland streams and drains. It grows in eutrophic, neutral to alkaline water partly let in from large rivers, that is polluted by agriculture as well as by sewage purification installations. The streambed usally consists of sandy soil, often covered with thin sapropelium. Elsewhere in the Netherlands the species is usually found in less eutrophic environments, in polder ditches with stagnant water on clayey or loamy soil. It is often found on places with seepage water. Elsewhere, the species has been observed in streams in Belgium, Germany and in Hungary. Plants in flowing water...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527118

Cumacea (Crustacea) from the Red Sea and the Maldives (Indian Ocean) in the collection of the Zoological Museum, Hamburg, with the description of seven new species and a new genus
Provedor de dados: 16
Autores: Muhlenhardt-Siegel, Ute.
Eleven species of the families Bodotriidae, Nannastacidae and Diastylidae from the Red Sea and Maldive Islands (Indian Ocean) were identified and partly redescribed. Six new species were described for the genera Eocuma, Iphinoe, Nannastacus, Schizotrema, Makrokylindrus and Dimorphostylis. A new genus, Bathycampylaspis, with one new species was established.
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Cumacea; New species; Red Sea; Indian Ocean.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504793

Selliguea sri-ratu, a new species in Polypodiaceae
Provedor de dados: 16
Autores: Hovenkamp, P.H.
In a revision of the Malesian representatives of the genus Selliguea (Polypodiaceae) several recently collected specimens form Borneo were found to represent a very distinct, but hitherto undescribed species. From the few collections seen so far, it appears that the new species is not a very narrow endemic, and the fact that it has only been collected after 1970 probably is an indication of the increasingly intensive exploration of Borneo in recent times. In so far as the specimens had been identified, the names S. feei Bory and S. heterocarpa (Blume) Blume had been applied. In general habit, the species is closest to S. heterocarpa, but can be distinguished by the following characters: Selliguea heterocarpa — Rhizome 2-4 mm thick; rhizome scales peltate,...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524478

Trifurcula silviae van Nieukerken: biology and new records (Lepidoptera: Nepticulidae)
Provedor de dados: 16
Autores: Nieukerken, E.J. van; Junnilainen, J.; Savenkov, N.; Šulcs, I.
Trifurcula siluiae van Nieukerken, 1990, previously known only from the French Alps only has been discovered in eastern Latvia, where stern-mines and larvae have been discovered on Onobrychis arenaria. New records are also given for the Italian and French Alps and Spain.
Tipo: Article / Letter to the editor
Palavras-chave: Nepticulidae; Latvia; Disjunct distribution; Stem-mines; B~ology; New records; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/227703

Chelonistele laetitia-reginae, a new orchid species from Sarawak
Provedor de dados: 16
Autores: Vogel, E.F. de.
The revision of the genus Chelonistele in Orchid Monographs 1 (1986) 23-40 lists 11 species and 4 variations. All occur in Borneo, which is evidently the centre of speciation of this genus; only Chelonistele sulphurea var. sulphurea occurs in addition in Java, Sumatra and the Malay Peninsula. During joint fieldwork in 1991 with staff of the Sarawak Herbarium in the Hose Mountains, Sarawak, the present author collected herbarium and live specimens of many orchids. Among the live orchids were quite a number of Chelonistele species from different habitats. Fifteen of these, belonging to six species, flowered in the Leiden Hortus Botanicus. Two are common and are well known from many herbarium specimens: C. sulphurea var. sulphurea and C. amplissima. Three...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525266

Pilularia globulifera L. (Pilvaren) in Zuid-Holland
Provedor de dados: 16
Autores: Heerden, Adrie van; Kerkhof, Dick.
Pilularia globulifera is restricted to Europe. It has a scattered distribution and in the most parts it is considered vulnerable or endangered. In the Netherlands it seemed confined to sandy or loamy soils in pleistocene and dune areas. In 1987, however, it was found in a ditch on acid clay (kattenklei) in the province of Zuid-Holland. This ditch is strongly influenced by seepage water. Relevées 2 and 3 show the vegetation of the margin of the ditch (nr. 2) and the ditch proper (nr. 3). In 1995 Pilularia was discovered near Berkenwoude in a former meadow of which the top layer (about 25 cm) was removed in 1994. Here it grew on peat in an area in which rainwater infiltrates. Relevée 1 was made on the latter locality.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/528016

An evaluation of the systematics of the genus Thalia (Thaliacea, Salpidae) based on new material from the EASTROPAC and MORO expeditions
Provedor de dados: 16
Autores: Daponte, Maria C.; Castro, Roberto J.; Esnal, Graciela B.
Until 1973, when Van Soest revised Thalia Blumenbach, 1798, this genus comprised only two species: Thalia democratica (Forsskål, 1775) and Thalia longicauda (Quoy &amp; Gaimard, 1824). The former showed great variability, which led Van Soest to distinguish five species: T. rhomboides, T. cicar, T. democratica, T. orientalis, and T. sibogae. Some authors have ignored this revision considering the observed differences of infraspecific level. In the present work new material is studied analysing variables not previously considered, such as the development of blastogenic stolons in the solitary zooids and the location of the tunnel opening through which the bud blocks are liberated. These characters previously permitted a separation of closely related species...
Tipo: Article / Letter to the editor
Palavras-chave: Tunicata; Salpidae; Thalia; Thalia democratica group.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/503970

Boekaankondigingen
Provedor de dados: 16
Autores: Meijden, R. van der.
A. Barendregt &amp; A. van Leerdam, Het hydro-ecologisch voorspellingsmodel ICHORS (versie 3.3) voor de provincie Zuid-Holland, Vakgroep Milieukunde RUU, Utrecht, 1995, 109 pag. + bijlagen, ƒ 20. Info: 030-2532359. *P. Bremer, Flora en fauna van Zuid- en Midden-Salland. Samenvattend rapport Milieu-inventarisatie, Zwolle, 1996, 29 pag.. Info: 038-4251752.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527720

On two new species of Oswaldella Stechow, 1919: O. terranovae spec. nov. and O. tottoni spec. nov. (Cnidaria: Hydrozoa). Notes on Antarctic hydroids, III
Provedor de dados: 16
Autores: Peña Cantero, A.L.; Vervoort, W.
The material assigned by Totton (1930) to Oswaldella antarctica (Jaderholm, 1904) and O. bifurca (Hartlaub, 1904) has been re-examined and redescribed. This material shows such important differences with Hartlaub's and Jäderholm's species and the remaining species of Oswaldella that they are here considered as two new species: O. terranovae spec. nov. and O. tottoni spec, nov., respectively.
Tipo: Article / Letter to the editor
Palavras-chave: Cnidaria; Hydrozoa; Hydroids; Oswaldella; New species; Antarctic; 42.72.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/319412

Over het voorkomen van Stachys recta L. (Bergandoorn) en S. annua (L.) L. (Zomerandoorn) in Nederland
Provedor de dados: 16
Autores: Duistermaat, Leni (H.).
Both Stachys recta and S. annua are considered adventive species in the Netherlands, and are therefore not included in the checklist of the Dutch flora.22 23 Recent records from the river valleys in the Eastern part of the country of the first species suggest that it is expanding its area into the Netherlands. Both fossile remains and (sub-)recent findings of S. annua indicate that deletion of this species from the 1990 version of the checklist is not justified.²³
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527747

Crassula helmsii (Kirk) Cockayne, een adventief op droogvallende, zandige oevers
Provedor de dados: 16
Autores: Brouwer, Emiel; Hartog, Cees den.
Crassula helmsii, an amphibious species originating from temperate Australia and New Zealand, is recorded for the first time from the Netherlands. In 1995 and 1996 it has been found in a nature reserve near Breda. The authors suggest that it should be destroyed there in order to prevent that it becomes an invasive weed.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527050

Notulae ad Floram agaricinam neerlandicam — XXXI. Latin diagnoses of two new species in Pseudobaeospora
Provedor de dados: 16
Autores: Bas, C.
Two new species of Pseudobaeospora have been fully described and illustrated in the third volume of Flora agaricina neerlandica (Bas et al., 1995: 133—134), but without Latin diagnoses. In order to validate their names, diagnoses are provided here. A monograph on Pseudobaeospora in Europe is in preparation.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/532162

Une nouvelle espèce de Corolla (Gastéropode, Opisthobranche, Pseudothécosome, Cymbuliidae). Remarques systématiques sur les genres Cymbulia, Gleba et Corolla
Provedor de dados: 16
Autores: Rampal, J.
The genus Corolla includes five species, one of them new to science, Corolla cupula n. sp., from the South Atlantic Ocean, described herein. The parapodial disc is folded up on itself on its whole posterior part; its proboscis is free only along half of its length, the rest being covered by the parapodial coil. Observations on the proboscis and parapodial disc have led to comparisons between the genera of the Cymbuliidae family.
Tipo: Article / Letter to the editor
Palavras-chave: Cymbuliidae; Corolla; Musculature parapodiale; Glandes à mucus; Proboscis; Phylogénie.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505085

Crataegus crus-galli L. (Hanedoorn)
Provedor de dados: 16
Autores: Odé, Baudewijn.
In 1996 zijn enkele vondsten van deze opmerkelijke Amerikaanse soort bekend geworden uit de omgeving van Nijmegen.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527493

Caesalpiniaceae (Leguminosae-Caesalpinioideae)
Provedor de dados: 16
Autores: Hou, Ding; Larsen, K.; Larsen, S.S.
In Malesia the family contains 25 indigenous genera and 8 genera with only introduced species, as follows (in brackets the number of native and/or introduced species in Malesia): Acrocarpus (1), Afzelia (2), Amherstia (1), Bauhinia (69), Brownea (4), Caesalpinia (22), Cassia (4), Chamaecrista (5), Copaifera (1), Crudia (28), Cynometra (14), Delonix (1), Dialium (5), Endertia (1), Gleditsia (1), Haematoxylum (1), Hymenaea (2), Intsia (2), Kalappia (1), Kingiodendron (3), Koompassia (3), Leucostegane (2), Maniltoa (13), Parkinsonia (1), Peltophorum (3), Pterolobium (5), Saraca (8), Schizolobium (1), Senna (17), Sindora (15), Sympetalandra (5), Tamarindus (1), Uittienia (1). Altogether there are 200 indigenous species in the area, and 42 introduced species...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/532557

Nieuwe vondsten van zeldzame planten in 1993, 1994 en (ten dele) 1995
Provedor de dados: 16
Autores: Meijden, Ruud van der; Holverda, Wout J.; Duistermaat, Leni (H.).
New indigenous species are Conopodium majus and Vulpia membranacea, and the recently recorded hybrid Scutellaria galericulata x minor (S. x hybrida). New and fully naturalized neophytes are the invasive species Hydrocotyle ranunculoides and Impatiens capensis. Other new neophytes are Anisanthamadritensis, Centaurea stoebe subsp. rhenana, Chenopodium ambrosioides, Crambe abyssinica, Dittrichia graveolens, Erigeron karvinskyanus, Koelreuteria paniculata, Malus baccata, Ornithopus compressus and Physalis peruviana. Anthericum liliago and Dianthus superbus were recorded again in the Netherlands after 80 years of disappearance, and Eleocharis ovata after 150 years. Bromus secalinus and Cuscuta gronovii are not yet extinct. Interesting new records of very rare...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527403

From the editors
Provedor de dados: 16
Autores: NN.
Again we are very happy with the large number of notes and manuscripts we received for this third spring issue. Please continue to send us items and manuscripts! Prof. Aprilani stood down as Chairman of the Foundation Flora Malesian. He is heartily thanked for acting as Chairman during the past four years; we are all glad that he stays on the Board and continues his huge support for the case of FM. Dr. Barlow and Prof. Lucas both resigned from the Board and are also heartily thanked for their tremendous support for the case of FM.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/533420

The identity of Agaricus cyathiformis Schaeff
Provedor de dados: 16
Autores: Kotlaba, F.; Pouzar, Z.
The problem of the correct interpretation of the original concept of Lentinus cyathiformis (Schaeff.) Bres. = Agaricus cyathiformis Schaeff. is analysed. The authors demonstrate, on the basis of the original protologue, that this species is identical with Pleurotus pulmonarius (Fr.) Quel. The modern interpretation of Lentinus cyathiformis, originating from Bresadola and followed by a number of contemporary authors, is erroneous: this fungus should be called Lentinus degener Kalchbr. in Fr.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/531915

Results of the Rumphius Biohistorical Expedition to Ambon (1990) Part. 4. The Holothurioidea (Echinodermata) collected at Ambon during the Rumphius Biohistorical Expedition
Provedor de dados: 16
Autores: Massin, C.
During the Rumphius Biohistorical Expedition (4.xi-14.xii.l990) 52 specimens representing 27 holothurian species were collected. All the species are described, figured and discussed systematically. Six species are new to the fauna of Ambon; two of these are new to the fauna of Indonesia, and two are new species: Afrocucumis stracki and Chiridota smirnovi. The holothurian fauna of Ambon is now represented by 59 species.
Tipo: Article / Letter to the editor
Palavras-chave: Holothurioidea; Ambon; Taxonomy; New species.; 42.72.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317776

Studies in tropical African Lactarius species. 3. Lactarius melanogalus R. Heim and related species
Provedor de dados: 16
Autores: Verbeken, Annemieke.
The type-specimens of the African blackening Lactarius-species, L. melanogalus R. Heim, L. baliophaeus Pegler and L. griseogalus R. Heim are examined and compared to recent collections from Zaire, Cameroon, Burundi, Zambia and Tanzania. Lactarius denigricans spec. nov. and L. baliophaeus var. orientalis var. nov. are proposed.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/531985

Larger Foraminifera from the Spermonde Archipelago (Sulawesi, Indonesia)
Provedor de dados: 16
Autores: Troelstra, S.R.; Jonkers, H.M.; Rijk, S. de.
A systematic description of the distributional patterns of larger symbiont-bearing benthic Foraminifera from the Spermonde Archipelago (Sulawesi, Indonesia) and their relation with local coral reef growth is presented. The larger Foraminiferal assemblages and diversity indices correspond with the diversity of Scleractinia and marine plants on the Spermonde platform. Our results indicate that the group is an excellent biomonitor for the health condition of recent coral reefs and a valuable tool for paleo-environmental reconstructions.
Tipo: Article / Letter to the editor
Palavras-chave: 38.20.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317518

Nieuwe en interessante Microlepidoptera uit Nederland in het jaar 1993 (Lepidoptera)
Provedor de dados: 16
Autores: Huisman, K.J.; Koster, J.C.
This is the seventh compilation of Microlepidoptera collected in The Netherlands, covering the year 1993. Four species are recorded for the first time from The Netherlands: Blastodacna vinolentella (Agonoxenidae), Mompha bradleyi (Momphidae), Teleiodes scriptella (Gelechiidae) and Aethes beatricella (Tortricidae). Differences in the external characters or genitalia of the following species are discussed: Aethes beatricella, A. dilucidana, A. flagellana, A. francillana, and Eudemis porphyrana and E. profundana.
Tipo: Article / Letter to the editor
Palavras-chave: Microlepidoptera; Nederland; Faunistiek; Nieuwe waarneming 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/303229

Boekaankondigingen
Provedor de dados: 16
Autores: Meijden, R. van der.
The subject of this thesis is a monograph of the genus Arctium, now including also five species formerly placed into Cousinia. Based on herbarium material and some field observations, this study presents new insights on three subjects: a) the generic delimitation of Arctium, limitation within the A. minus-complex, b) the species deand c) the occurrence of hybridisation. It soon became clear, rather surprisingly, that five species of Cousinia possess hooked involucral bracts like Arctium in its classical concept. The study became focussed then on the relation between Arctium in its classical delimilation and the large Asian genus Cousinia. From a macromorphological point of view the five ‘arctioid’ species of Cousinia should be placed in the extended genus...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526672

A new genus of Tetratermini (Hymenoptera: Braconidae: Lysiterminae) parasitic on grasshoppers (Gryllacrididae)
Provedor de dados: 16
Autores: Achterberg, C. van; Steiner, H.
The new genus Katytermus from Malaysia (type species: Katytermus palmicola spec. nov.) is described and illustrated. The new genus belongs to a new tribe, Tetratermini, of the subfamily Lysiterminae. The type species has been reared as a gregarious endoparasite of a "katydid" longhorn grasshopper (Gryllacrididae).
Tipo: Article / Letter to the editor
Palavras-chave: Hymenoptera; Braconidae; Lysiterminae; Tetratermini; Katytermus; Platyrmus; Tetratermus; Gryllacrididae; Oriental; Australian; Key; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318126

Minimale Levensvatbare Populaties: Een uitwerking voor populaties zandhagedissen, Lacerta agilis, en levendbarende hagedissen, Lacerta vivipara, in Nederland
Provedor de dados: 16
Autores: Dijk, J.J. van.
Within ecosystems species disappear and species emerge. The number of species within a system fluctuates because of migration and dispersion. During the last century human interventions on natural systems increased. Because of the intensification of agriculture, industrialisation and urbanisation populations are threatened with extinction. This is mainly caused by habitat degradation and habitat fragmentation. Therefore it is important to get an insight in the threshold value of the population size at which the population is able to survive. Threatened species can be prevented from extinction as long as their population size does not drop below their threshold value. The biogeographic theories of MacArthur and Wilson served as a basis for the concept of...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/506349

Gymnodoris pattani, a new dorid nudibranch from Pattani Bay, Gulf of Thailand (Gastropoda, Nudibranchia)
Provedor de dados: 16
Autores: Swennen, C.
Several specimens of a new dorid nudibranch have been found in Yaring River, Pattani Province in southern Thailand. The species clearly belongs to the genus Gymnodoris, and is described and named G. pattani. It can be distinguished from all other species described in the genus by its translucently greenish colour, lack of notable colour markings, smooth skin, low number of about 3 lamellae on the rhinophores, a circlet of about 20 simple gill leaflets, its broad foot, and its brackish water habitat.
Tipo: Article / Letter to the editor
Palavras-chave: Mollusca; Nudibranchia; Polyceridae; Gymnodoris; Thailand.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505503

Flora-inventarisatie van het kustgebied van Voorne
Provedor de dados: 16
Autores: Laan, Dick van der.
In de maanden mei tot en met oktober 1995 is in het noordelijke gedeelte van het kustgebied van Voorne een inventarisatie van de hogere planten uitgevoerd. Al eerder zijn er op Voorne inventarisaties uitgevoerd. De eerste systematische inventarisatie is in 1962 opgezet door Van der Maarel. Het gehele kustgebied is door hem in een honderdtal subgebiedjes (‘hokken’) onderverdeeld op basis van voornamelijk natuurlijke, landschappelijke grenzen. In de periode 1962-1968 zijn deze hokken geïnventariseerd. In de jaren 1979 en 1981 is het gehele gebied voor de tweede keer geïnventariseerd. Bij deze inventarisatie is naast de presentie ook de mate van voorkomen van de soorten aangegeven (Tansley-code). In 1987 werd een derde inventarisatie uitgevoerd. Deze...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527660

The occurrence and taxonomic relationships of Burmannia wallichii (Burmanniaceae) in Malesia
Provedor de dados: 16
Autores: Saunders, Richard M.K.
Burmannia wallichii (Miers) Hook. f. (Burmanniaceae) is shown to occur in Malesia. The similarities between this species and related saprophytic Burmannia species from Southeast Asia are discussed, and the Flora Malesiana key published by Jonker (1948) is amended accordingly. A new taxonomic description of the species is provided.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524926

Name changes in Agrostis, Arundinella, Deyeuxia, Helictotrichon, Tripogon (Gramineae)
Provedor de dados: 16
Autores: Veldkamp, J.F.
Buse’s (1854) treatment of Junghuhn’s Gramineae appeared before more parts of Steudel’s Synopsis (1853-1855) than was previously thought. Agrostis rigidula Steud. becomes. A. infirma Buse with 8 new varietal combinations. Arundinella fuscata Nees ex Buse previously regarded as a later homonym is invalid, and must be called A. goeringii Steud. Helictotrichon junghuhnii (Buse) Henrard supersedes H. virescens Nees ex Steud., and Tripogon exiguus Buse replaces T. semitruncatus Nees ex Steud.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525180

Ornithopus compressus L. (Geel vogelpootje) in Noord-Limburg. Twee vindplaatsen dicht bijeen en toch onafhankelijk
Provedor de dados: 16
Autores: Reijerse, Fons (A.) I.
In 1994 and '95, Ornithopus compressus has been recorded at two nearby localities in Northern Limburg. There are good reasons to assume that the original seeds have originated from different sources. At one locality the species reappeared next year, but in 1996 it was not recorded any more. A short examination of the Leiden Herbarium material showed that the variation in the indumentum of the pods (glabrous or rather strongly hairy) is of no taxonomic significance.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527193

Studies on tiger beetles : 84. Additions to the tiger beetle fauna of Sulawesi, Indonesia (Coleoptera: Cicindelidae)
Provedor de dados: 16
Autores: Cassola, F.
Distributional new data are provided for several interesting or poorly known tiger beetle species from Sulawesi, Indonesia. The generic attribution of Wallacedela brendelli Cassola, 1991, is confirmed, and moreover two new species, Wallacedela? problematica spec. nov. and Wallacedela butonensis spec, nov., are described respectively from the environs of Majene, W coast of SW Sulawesi, and from Buton Island, SE Sulawesi.
Tipo: Article / Letter to the editor
Palavras-chave: Cicindelidae; Sulawesi; New data; New species; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318549

New Neotropical species of the genus Meteoridea Ashmead (Hymenoptera: Braconidae: Meteorideinae)
Provedor de dados: 16
Autores: Penteado-Dias, A.M.
Two new species of the genus Meteoridea Ashmead, 1900, are described from Brazil and Panama. The species are partly illustrated.
Tipo: Article / Letter to the editor
Palavras-chave: Meteoridea; Hymenoptera; Braconidae; Meteorideinae; Neotropical; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318989

Boekaankondigingen
Provedor de dados: 16
Autores: Meijden, R. van der.
Deze rapporten waarvan de prijs bij de redactie onbekend is, zijn te bestellen via tel. 0511-474764 onder vermelding van het rapportnummer. **S. Kolkman &amp; W. Altenburg, De vegetatie van de Rottige Meente, de Witte en Swarte Brekken en een aantal reservaten in het district de Stellingwouden in 1993, Veenwouden, 1995, 50 pag. + kaarten, A &amp; W-rapport 97.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527572

Further information on the Dohrn-Keulemans collection of birds from the Cape Verde Islands
Provedor de dados: 16
Autores: Hazevoet, C.J.; Fischer, S.
Until recently, only one specimen from the series of syntypes of the Cape Verde Cane Warbler Acrocephalus brevipennis, collected by H. Dohrn and J.G. Keulemans in 1865, was known to be still in existence. Another specimen belonging to this series has now been discovered in the collections of the Berlin museum. Some additional information on the Dohrn-Keulemans collection is given, based on listings in the old catalogues of this museum.
Tipo: Article / Letter to the editor
Palavras-chave: Cape Verde Islands; Aves; Sylviidae; Acrocephalus brevipennis.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504588

Scutellaria x hybrida Strail, nieuw voor Nederland
Provedor de dados: 16
Autores: Zijlstra, Otto G.
Scutellaria x hybrida, the hybrid between S. galericulata and S. minor was recognised for the first time in the Netherlands. In 1994 and 1995 several populations were found in woods Northeast of Oldenzaal, in the Province of Overijssel; the hybrid populations were already observed in 1978, but not recognised as such (held for S. minor); at all Dutch localities thusfar it grows without parents.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527856

Chitons (Mollusca: Polyplacophora) from the Seychelles with description of a new species
Provedor de dados: 16
Autores: Kaast, P.
Notes are given on nine chiton species, collected mainly during the 'Oceanic Reefs' Expedition to the Seychelles (1992-1993), with some biogeographical observations. Ischnochiton goudi (family Ischnochitonidae) is described as a new species.
Tipo: Article / Letter to the editor
Palavras-chave: Polyplacophora; Indian Ocean; Seychelles; Leptochiton; Ischnochiton; Schizochiton; Chiton; Acanthopleura; Lucilina; Acanthochitona; Cryptoplax; 42.73.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/319379

A new species of Cymbasoma (Copepoda: Monstrilloida) from the Sulu Sea, Philippines
Provedor de dados: 16
Autores: Suárez-Morales, E.
A specimen of a monstrilloid copepod collected by the U.S. Fisheries Steamer “Albatross“ in the Sulu Sea, west coast of Mindanao, Philippines, and deposited in the U.S. National Museum of Natural History, was taxonomically restudied. The specimen had been originally identified as a male of Monstrilla serricornis Sars by C.B. Wilson. Reexamination revealed that the specimen represents a new species of the genus Cymbasoma, C. mcalicei. This species can be distinguished by its body proportions and body size, but mainly by the structure of the genital lappets, which have a serrated posterior margin unique in the genus. This is the seventh species of Cymbasoma reported from East or Southeast Asia.
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Copepoda; Monstrilloida; Philippines.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504750

Dr. E. Kits van Waveren (1906—1995)
Provedor de dados: 16
Autores: Bas, C.
With the death on 3 September 1995 of Dr. E. Kits van Waveren, the Dutch mycologists lost one of their most prominent, internationally known amateurs, a specialist on the taxonomy of the genus Psathyrella and an ardent collector. Dr. Kits van Waveren, honorary staff member of the Rijksherbarium at Leiden since 1970 and honorary member of the Dutch Mycological Society since 1983, will be most of all remembered as the author of the monograph ‘The Dutch, French and British species of Psathyrella’ published in 1985 as Supplement 2 of the mycological journal Persoonia. In this book of 300 pages about 100 species of Psathyrella are extensively described and illustrated, 10 of which were new to science. This publication, together with 7 later papers between 1986...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/531687

Korte mededeling
Provedor de dados: 16
Autores: Rotteveel, Ton.
In aanvulling op het artikel over Deens lepelblad wil ik de volgende opmerkingen maken. De auteurs menen dat chemische bestrijding een weinig relevante factor is voor de verklaring van het voorkomen van deze planten. Echter, juist uit het feit dat Cochlearia danica vooral voorkomt langs middenbermen en rond reflectorbordjes kan afgeleid worden dat niet alleen het strooien van zout een rol speelt, maar ook de chemische bestrijding. Met name op bovengenoemde plaatsen kan er slecht gemaaid worden, reden waarom daar chemische bestrijding plaatsvindt. Om te voorkomen dat vegetatie over het asfalt heen groeit, wordt ook gespoten. Dat treft niet het lepelblad zelf, omdat de bespuiting buiten diens groeiseizoen plaatsvindt. Dit alles leidt tot een soort...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526665

Nouvelles données sur le genre Bragasellus (Crustacea: Isopoda: Asellidae)
Provedor de dados: 16
Autores: Afonso, Odette; Henry, Jean-Paul; Magniez, Guy.
From now on, the genus Bragasellus Henry &amp; Magniez, 1968 includes 2 oculated and 17 stygobiotic species. As a natural and monophyletic taxonomic unit, we consider it a good genus. Its original area corresponds to the north-west quarter of the Iberian Peninsula. Secondarily, this area has extended eastward, using mainly the alluvial channels of hydrographic systems (Ríos Douro + Ebro and tributaries), finally reaching the underground waters of several Mediterranean rivers. This active expansion is exclusively due to the migration of two stygobiotic sibling species: B. lagari Henry &amp; Magniez, 1973 towards the high basin of the Río Tajo, then downstream to the basins of the Ríos Jucar and Turia (Prov. Valencia); and B. lagarioides n. sp., downstream...
Tipo: Article / Letter to the editor
Palavras-chave: Bragasellus; Stygobionts; Active expansion; Recent alluvial deposits; Taxonomy; New species; Zoogeography; Iberian Peninsula.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504446

New species of Festuca L. (Gramineae) of Malesia
Provedor de dados: 16
Autores: Markgraf-Dannenberg, I.; Veldkamp, J.F.
Three new species of Festuca L. (Gramineae) from Malesia are described. A key and collector’s list to all Malesian species are provided.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525750

Sea Turtle Conservation on Bonaire. Sea Turtle Club Bonaire 1995 Project Report and Long Term Proposal
Provedor de dados: 16
Autores: Valkering, N.P.; Nugteren, P. Van; Eijck, T.J.W. Van.
Bonaire (12°12’N, 68°77’W), Netherlands Antilles, is famous for its unspoiled coral reefs. Reefs and lush sea grass provide forage and refuge for two species of endangered sea turtle, the green turtle ( Chelonia mydas) and the hawksbill (Eretmochelys imbricata). Loggerhead ( Caretta caretta ) and leatherback ( Dermochelys coriacea) turtles are less common but are occasionally encountered. In the local language (Papiamentu) these species are known as ‘turtuga blanku’, ‘turtuga karet’, ‘turtuga kawama’ and ‘turtuga drikil’, respectively. Until recently, turtles were routinely captured and processed. This continues at a low level, despite the fact that it is illegal under the Marine Environment Ordinance (A.B. 1984, no. 21), as amended on 27 June 1991....
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/506351

Notes on Hymenoscyphus — II. On three non-fructicolous species of the ‘fructigenus-group’ with croziers
Provedor de dados: 16
Autores: Hengstmengel, Jan.
Descriptions, illustrations, and keys are given of a small part of the ‘fructigenus-group’ of the ascomycete genus Hymenoscyphus. The species concerned are characterized by asci originating from croziers. Hymenoscyphus scutuloides and H. fucatus var. badensis are described as new, while the combination H. fucatus is validly published.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/531614

Reviews
Provedor de dados: 16
Autores: Zhang, X.C.; Nooteboom, H.P.; Roos, M.C.
This volume, seventh in the series, deals exclusively with hybrid taxa of Pteridophytes in Japan. In this book 302 hybrid taxa are illustrated by photographs and maps. The production of this massive book was organised by Dr. Nakaike with the contribution of many local Pteridologists in this country. Following the style of the former volumes, 48 hybrids are recorded in detail in the first part of this book, each with a black and white photograph of a living plant, a short record of the discovery of the hybrid, its diagnostic characters, and discussion of postulated parents, information which is unfortunately all in Japanese; furthermore a page of line drawings (sometimes substituted by high-quality photographs of herbarium specimens), a map of distribution,...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525622

Taxonomical and ecological description of a species complex of zooplanktivorous and insectivorous cichlids from Lake Victoria
Provedor de dados: 16
Autores: Oijen, M.J.P. van; Witte, F.
The zooplanktivorous Haplochromis tanaos spec. nov., and the morphologically very similar but insectivorous Haplochromis thereuterion spec. nov., from Lake Victoria (East Africa) are described and compared to Haplochromis diplotaenia Regan &amp; Trewavas, 1928, a similar species which is known only from the holotype. Intraspecific variation is described for both new species. Ecological data of the new species are compared to those of known zooplanktivores and insectivores from the Mwanza Gulf area. Both new species disappeared concurrently with the Nile perch (Lates) upsurge early in the 1980's. The recent occurrence of individuals closely resembling the new species, in a different habitat close to the original one, is analysed.
Tipo: Article / Letter to the editor
Palavras-chave: Cichlidae; Haplochromis; Zooplanktivores; Insectivores; Ecological segregation; Intraspeci- fic variation; Ontogeny; Sexual heterodonty; Nile perch; Lates; Predation; Habitat shift.; 42.81.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317563

Notes on Malesian Fabaceae (Leguminosae-Papilionoideae). 1. The genus Erythrina L
Provedor de dados: 16
Autores: Adema, Frits.
Erythrina L. is reviewed for the Flora Malesiana region. Six species are recognised. Erythrina merrilliana is reduced to E. insularis and E. microcarpa Koord. &amp; Valeton to E. stricta. A key to the species is presented.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526117

Leersia oryzoides (L.) Swartz (Rijstgras) in het winterbed van de Maas
Provedor de dados: 16
Autores: Beringen, Ruud; Odé, Baudewijn.
While monitoring riverbank vegetation, Leersia oryzoides was recorded this year in eleven 1 kmsquares in inundation area’s along the river Meuse. In 1994 and 1995 this grass was also observed at several new locations in the valley of this river in the Province Limburg.²³4 The supposition that the decline of this species is less severe than assumed² is confirmed by these new findings. In some 1 km-squares at the lower course of the river where L. oryzoides was last recorded before 1950, it appeared to be still present along ditches. Probably L. oryzoides is less abundant than before 1950 and therefore overlooked. In the Province Limburg new suitable habitats for L. oryzoides were created due to gravel production. In this Province it is mostly found in open...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527211

New taxa in the genus Tournefortia (Boraginaceae) from the Malesian region
Provedor de dados: 16
Autores: Riedl, H.
Three new taxa in the genus Tournefortia L., T. luzonica I.M.Johnston subsp. angustissima, T. minutiflora, and T. oppositifolia are described from the Philippines, New Guinea, and the Moluccas, respectively. Also T. luzonica var. sublucens I.M. Johnston is raised to subspecific rank.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525102

Notulae ad Floram agaricinam neerlandicam — XXIV-XXVIII. Some taxonomic and nomenclatural changes in the Tricholomataceae, tribus Clitocybeae
Provedor de dados: 16
Autores: Kuyper, Thomas W.
Three new taxa and three new combinations are introduced in Tricholomataceae, tribus Clitocybeae. Taxonomic and nomenclatural comments on some other taxa are added.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/532364

Goniothalamus majestatis, a new species of annonaceae from Sulawesi, Indonesia
Provedor de dados: 16
Autores: Keßler, Paul J.A.
Ab ceteris speciebus generis Goniothalami rhipidiis usque ad 1.5 m basi caulis gerentis differt. — Typus: Coode 6060 (K holo; L iso), Central Sulawesi, c. 1° 09' S, 122° 31' E, Luwuk area, inland from Batui and Seseba on Batui Road, 50 m alt. Treelet up to 7.5 m high, c. 12 cm in diam. Young branches light brown, striate. Leaves membraneous, oblong, 12-30 cm long, 4-10 cm wide, shortly and bluntly acute to acuminate, base cuneate, margin somewhat undulate, glabrous, midrib channelled above, strongly prominent below, secondary veins 12-16 pairs, enclosing with the midrib an angle of c. 50°, interarching c. 4 mm from the margin, reticulation faint and lax, petiole 8-15 mm long, glabrous. Flowers borne on leafless twigs more or less at ground-level or just...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525004

Distributional patterns of the American Peiratinae (Heteroptera: Reduviidae)
Provedor de dados: 16
Autores: Morrone, J.J.; Coscarón, M. del C.
Based on distributional data of 40 species of Peiratinae, historical relationships of five Amazonian areas (Paranaense, Atlantic, Pacific, Amazonian, and Cerrado) and two Chacoan areas (Chaco and Caatinga), were investigated through a parsimony analysis of endemicity (PAE). The resulting area cladogram indicates the following sequence of area fragmentation: (Cerrado (Caatinga (Chaco, ((Pacific, Amazonian), (Atlantic, Paranaense))))). It is proposed that these results reflect the gradual development of a diagonal of open formations (Chaco-Cerrado-Caatinga), which separated the former continuous tropical forest into two parts, namely, northwestern (Pacific plus Amazonian) and southeastern (Paranaense plus Atlantic).
Tipo: Article / Letter to the editor
Palavras-chave: Heteroptera; Reduviidae; Peiratinae; Distribution; Patterns; Parsimony analysis; Endemicity; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318686

Ornithological news from the Cape Verde Islands in 1995, including records of species new to the archipelago
Provedor de dados: 16
Autores: Hazevoet, Cornelis J.; Fischer, Stefan; Deloison, Gérard.
Several bird observations, supplementary to the recently published review of the avifauna of the Cape Verde Islands (Hazevoet 1995), were made during visits to the islands in 1995. Three species new to the archipelago were observed, viz. Phalaropus lobatus, Gelochelidon nilotica and Sterna maxima. Also reported here are extensions in time and space of both residents and migrant visitors. These include summer records of several species of waders, herons and Platalea leucorodia, and range extensions of resident breeding species, e.g. the first records of Alaemon alaudipes from the island of Sal. In addition, some new data on breeding seabirds on the islands of Sal and Boavista are presented.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505540

Alstonia beatricis (Apocynaceae), a new species from Irian Jaya, Indonesia
Provedor de dados: 16
Autores: Sidiyasa, Kade.
Alstonia R.Br. (Apocynaceae) is a pantropical genus occurring in Africa, India, Indo-China, Southeast Asia, Malesia, Australia, and eastwards to the Marquesas Islands and Central America. In the framework of the International MOF Tropenbos Kalimantan Project, a revision of the genus is in progress. Alstonia comprises six sections and about 45 species. One new species from Irian Jaya, Indonesia is described here.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524997

A revision of Anodendron A. DC. (Apocynaceae)
Provedor de dados: 16
Autores: Middleton, David J.
The genus Anodendron A. DC. is revised. Formosia Pichon is included in synonymy. Seventeen species are recognised including two new species and two new combinations.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524559

Benthic shallow-water hydroids (Cnidaria, Hydrozoa) of the coast of São Sebastião, Brazil, including a checklist of Brazilian hydroids
Provedor de dados: 16
Autores: Migotto, A.E.
The paper presents the results of a general survey of the hydroid fauna of the coastal region of the São Sebastião Channel, São Paulo State, Brazil. Intensive collecting in the intertidal and infralittoral zones, from 1984 to 1992, led to the discovery of many species, some of which are small and inconspicuous. Out of 59 species of hydroids (17 athecate and 42 thecate) described and illustrated, three are new records for the Atlantic Ocean, six for the western South Atlantic, and 21 for the Brazilian coast. The medusa stage of Asyncoryne ryniensis and the cnidome of 24 species are described for the first time. The paper also contains a synopsis of the hydroids recorded from the Brazilian coast, the list now including 107 species. Pseudostenotele...
Tipo: Article / Letter to the editor
Palavras-chave: Cnidaria; Hydrozoa; Systematics; Distribution; South American fauna; Atlantic; Brazil.; 42.72.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317585

Review
Provedor de dados: 16
Autores: Kalkman, C.
The first volume on ornamentals contains (1) an original introduction to the plant geography of China, 12 pages and, indeed, not more than a very simplified introduction to the physical, climatological and vegetational diversity of China; (2) a translation of five chapters from E.H. Wilson, A naturalist in Western China (1913), viz. on the flora of western China, on travels in NW Hupei, and on the flora of Ichang, Emei Shan, and Wa Shan (more than 50 pages); (3) a number of ‘plant portraits’, more than 40 paragraphs each covering one species or sometimes a genus, altogether more than 60 pages; (4) a list of the older plant hunters in China (almost all ‘expatriate’, covering on a total of 42 collectors only 3 with Chinese names!), a list of literature...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525527

A new Leiobunum species from Greece (Arachnida, Opiliones, Phalangiidae)
Provedor de dados: 16
Autores: Karaman, Ivo M.
Leiobunum gruberi nov. spec. (Arachnida, Opiliones, Phalangiidae) from northern Greece (Macedonia, Leptokaria) is described and figured. This species is closely related to Leiobunum seriatum Simon, 1878, known from the Near East, Cyprus and eastern Anatolia. A short review of known taxa of the genus Leiobunum C.L. Koch, 1839, on the Balkan is presented.
Tipo: Article / Letter to the editor
Palavras-chave: Arachnida; Opiliones; Phalangiidae; Greece.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505459

Cherax (Astaconephrops) minor new species, a parastacid from the mountains of Irian Jaya (W. New Guinea), Indonesia (Crustacea: Decapoda: Parastacidae)
Provedor de dados: 16
Autores: Holthuis, L.B.
A new species of parastacid crayfish, Cherax (Astaconephrops) minor is described from the central mountains of Irian Jaya (West New Guinea), Indonesia. Its small size distinguishes it from most other New Guinea crayfishes.
Tipo: Article / Letter to the editor
Palavras-chave: Cherax minor; New species; Parastacidae; Freshwater crayfish; Irian Jaya; Indonesia; West New Guinea; 42.74.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318294

Equisetum hyemale L. var. affine (Engelm.) A.A. Eaton in Schoorl
Provedor de dados: 16
Autores: Swolfs, Aart G.
A giant form of the Northamerican Equisetum hyemale var. affine has been planted a decade ago near the coast, where it has naturalized since. It is suggested that other Northamerican introductions of this extremely variable taxon may have remained unnoticed.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527246

A redescription of the Indo-West Pacific Spirobranchus corrugatus Straughan, 1967 (Serpulidae, Polychaeta), and an alternative hypothesis on the nature of a group of Middle Miocene microfossils from Poland
Provedor de dados: 16
Autores: Hove, Harry A. ten; Nishi, Eijiroh.
Spirobranchus corrugatus, a little known species, is redescribed based on ample material from Australia, Indonesia, Japan and the Seychelles. The species is characterized by a seemingly porous tube, sunk into the substrate. Characteristically, the opercular plate shows a number of radial ridges on its distal surface, resembling Middle Miocene microfossils from Poland. The ventral rim of the opercular bulb of Sp. corrugatus bears numerous ocelli, with single lenses. A comparison with similar species is given.
Tipo: Article / Letter to the editor
Palavras-chave: Polychaeta; Serpulidae; Indo-Pacific; Miocene; Poland.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505214

Notulae ad Floram agaricinam neerlandicam — XXIX. Two new species of Psilocybe
Provedor de dados: 16
Autores: Bas, C.; Noordeloos, M.E.
Two new species of Psilocybe (Basidiomycetes, Agaricales) are described from the Netherlands, viz. P. puberula, a bluing species similar to P. semilanceata and P. cyanescens, but clearly different by its dry cutis-like pileipellis with well-differentiated pileocystidia, and P. flocculosa, a member of section Psilocybe characterized by a floccose stipe and the presence of pleurocystidia.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/531913

Ten new species of water mites from Sulawesi and Waigeo, Indonesia (Acari, Hydrachnellae)
Provedor de dados: 16
Autores: Smit, Harry.
Six new species of water mites are described from Sulawesi, Indonesia, viz., Hygrobates rotundus, Neumania parvula, Albia inopinata, Albia molibaguensis, Arrenurus bruzelioides, and Arrenurus duffelsi, and four new species from Waigeo, Indonesia, viz., Torrenticola papillata, Limnesia argelooi, Recifella rumei, and Axonopsella waigeoensis. In addition, eight species are reported new for the fauna of Sulawesi, and two species new for the fauna of Waigeo.
Tipo: Article / Letter to the editor
Palavras-chave: Acari; Hydrachnellae; Sulawesi; Waigeo; New Guinea.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505549

Contributions to the knowledge of the genus Stactobia McLachlan, 1880 from Japan (Trichoptera: Hydroptilidae)
Provedor de dados: 16
Autores: Botosaneanu, Lazare; Nozaki, Takao.
The knowledge of the Japanese representatives of the microcaddisfly genus Stactobia is considerably improved by: first description of the adult (male) of the only species previously recorded, S. japonica, for which a neotype is designated; discovery of S. makartschenkoi, previously known from Kunashir; description of 4 new species from Honshu, one of them isolated and remarkable. Several morphological, distributional, and ecological (habitat) aspects are considered.
Tipo: Article / Letter to the editor
Palavras-chave: Insecta Trichoptera; Stactobia; Japan; Hygropetric habitats.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505533

Editorial news
Provedor de dados: 16
Autores: NN.
A great event has been the publication of Volume 12/2 of Flora Malesiana, comprising the treatments of the Ceasalpiniaceae (Ding Hou, K. Larsen and S.S. Larsen), the Geitonoplesiaceae (J.E. Laferrière), the Hernandiaceae (B.E.E. Duyfjes) and the Lowiaceae (K. Larsen). The revision of the Caesalpiniaceae, the second (sub)family of the Legumes published in FM, treats the 200 indigenous as well as 42 much-cultivated species. The Geitonoplesiaceae were recently described as a separate family and comprise two monotypic genera. The other two families are also small-sized with 13 and 6 Malesian species respectively. All authors are complimented with their contribution to the progress in Flora Malesiana.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/533140

Hydrocotyle ranunculoides L.f. (Grote waternavel): de stand van zaken
Provedor de dados: 16
Autores: Baas, Wim J.; Holverda, Wout J.
In het voorjaarsnummer van 1996 deden wij verslag van het spectaculaire woekeren van de Grote waternavel (Hydrocotyle ranunculoides). Gedurende de zomer en herfst van 1995 veroverde deze drijvende, oorspronkelijk uit Amerika afkomstige waterplant in recordtijd grote delen van vaarten in West- en Midden-Nederland. Zo massaal, dat bijvoorbeeld in Utrecht-Rijnsweerd de watergangen tot 4 maal toe moesten worden vrijgemaakt. Gezien de serieuze problemen die deze plant sinds enkele jaren in Australië oplevert is het van belang te weten of de Grote waternavel ook in onze streken een permanente bedreiging kan vormen. Zeker toen bleek dat de vegetatief groeiende plant onze laatste zachte winters had overleefd.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/528084

North Jamaican Deep Fore-Reef Sponges
Provedor de dados: 16
Autores: Lehnert, Helmut; Soest, R.W.M. van.
An unexpectedly high amount of new species, revealed within only one hour of summarized bottom time, leads to the conclusion that the sponge fauna of the steep slopes of the deep fore-reef is still largely unknown. Four mixed gas dives at depths between 70 and 90 m, performed in May and June, 1993, at the deep fore-reef off the north Jamaican coast in front of the Discovery Bay Marine Laboratory, revealed a total of 27 demosponge species, ten of which are new to science.
Tipo: Article / Letter to the editor
Palavras-chave: Sponges; Deep-water; Fore-reef; Jamaica.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504805

Soft corals (Coelenterata: Octocorallia: Alcyonacea) from the Laccadives (SW India), with a re-examination of Sinularia gravis Tixier-Durivault, 1970
Provedor de dados: 16
Autores: Vennam, J.; Ofwegen, L.P. van.
New records for the Laccadives are given and Sinularia gravis Tixier-Durivault, 1970, is reexamined and compared with Sinularia gyrosa (Klunzinger, 1877) sensu Verseveldt, 1977.
Tipo: Article / Letter to the editor
Palavras-chave: Octocorallia; Alcyonacea; Laccadives; Indian Ocean; 42.72.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318253

Conceptual issues in phylogeny, taxonomy, and nomenclature
Provedor de dados: 16
Autores: Rasnitsyn, Alexandr P.
Phylogenetic hypotheses are designed and tested (usually in implicit form) on the basis of a set of presumptions, that is, of statements describing a certain order of things in nature. These statements are to be accepted as such, no matter whatever evidence for them exists, but only in the absence of reasonably sound evidence pleading against them. A set of the most current phylogenetic presumptions is discussed, and a factual example of a practical realization of the approach is presented. A comparison is made of the three main taxonomic approaches hitherto developed, viz., phenetics, cladistics, and phylistics (= evolutionary systematics). The latter term denotes an approach that tries explicitly to represent the basic features of traditional taxonomy...
Tipo: Article / Letter to the editor
Palavras-chave: Phylogeny; Taxonomy; Phenetics; Cladistics; Phylistics; Principles of nomenclature; Type concept; Paleoentomology; Xyelidae (Vespida).
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504631

Bijzondere vondsten op het terrein Plantage Willem III
Provedor de dados: 16
Autores: Prins, Dirk.
De Plantage Willem III (100 ha) is een natuurgebied in ontwikkeling op de zuidflank van de Utrechtse Heuvelrug bij Elst (Rhenen). Het zal één geheel gaan vormen met het aangrenzende al wat oudere natuurgebied Remmerdense Heide (ook 100 ha). Via dia’s is kort ingegaan op verleden, heden en toekomst. In 1853 werd de heide ontgonnen en kwam er tabaksteelt, later fruitteelt, en recenter graszaadteelt, veredeling van erwten, enz. De Stichting ‘Het Utrechts Landschap’ startte haar beheer in 1995 en mikt, ter herstel van het oorspronkelijke half open landschap, op begrazing met edelherten, maar zal daarin afhankelijk zijn van aangrenzende boseigenaren. Ter verschraling wordt er op een gedeelte twee jaar lang rogge verbouwd. Men hoopt zo verruiging met Gestreepte...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526577

New taxa to commemorate the opening of the Van Steenis building by Her Majesty Queen Beatrix
Provedor de dados: 16
Autores: Baas, Pieter.
Systematic botany is about the discovery, description, naming, and understanding of plant diversity. Of these four aspects the naming and describing of new species belongs to the most traditional, yet exciting activities of the plant taxonomist. On the occasion of the official opening of the Van Steenis Building by Her Majesty Queen Beatrix, we indulge in presenting species and one genus, new to science, and named to commemorate this auspicious event. The Van Steenis Building provides the new and highly functional premises for the Rijksherbarium, the Centre for Environmental Science, and the facilities for the undergraduate study of biology of Leiden University. Prof. Dr. C. G.G.J, van Steenis (1901-1986) was an unrivalled authority of Malesian botany but...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525656

Brachiaria, Urochloa (Gramineae-Paniceae) in Malesia
Provedor de dados: 16
Autores: Veldkamp, J.F.
A revision of the 17 species of Urochloa Beauv. (Gramineae) in Malesia is given. Because Brachiaria (Trin.) Griseb. has been nearly completely reduced to Urochloa, 3 new combinations are proposed. A new combination is also required for Urochloa paspaloides Presl. Brachiaria eruciformis (J.E. Sm.) Griseb. has been introduced in a few places in Malesia.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524895

Vooraankondiging Landelijke Variadag
Provedor de dados: 16
Autores: NN.
Op zaterdag 7 december 1996 wordt door de Stichting FLORON en de Koninklijke Nederlandse Botanische Vereniging – Sectie voor Onderzoek en Behoud van de Wilde Flora – een Landelijke Variadag georganiseerd. De bijeenkomst zal worden gehouden in het nieuwe onderkomen van het Rijksherbarium: het Van Steenisgebouw, Einsteinweg 2, Leiden. Zoals gebruikelijk zullen er verschillende floristisch getinte voordrachten gehouden worden en zal er herbariummateriaal van bijzondere vondsten ter bezichtiging worden neergelegd. Wij stellen het zeer op prijs indien u een (korte) voordracht over bijzondere vondsten of gebiedsinventarisaties wilt houden. Voor nadere informa-
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527887

The parasites of cereal stem borers (Lepidoptera: Cossidae, Crambidae, Noctuidae, Pyralidae) in Africa, belonging to the family Braconidae (Hymenoptera: Ichneumonoidea)
Provedor de dados: 16
Autores: Achterberg, C. van; Polaszek, A.
A review is given of the parasites (parasitoids) of the African cereal stem borers (including introduced species) belonging to the family Braconidae (Hymenoptera); 38 species belonging to 19 genera are keyed and treated. Three new species are described: Macrocentrus sesamivorus spec. nov. from Kenya, Somalia, and Zaïre (Macrocentrinae), Iphiaulax pilisoma spec. nov. from Senegal, and Amyosoma flavistigma spec. nov. from Australia (Braconinae). New synonyms are: Euglyptobracon Telenga, 1936, with Pseudovipio Szépligeti, 1896; Lorenzoa de Stefani-Perez, 1909, Kulczynskia Niezabitowski, 1910, and Chivinia Shestakov, 1932, with Bracon Fabricius, 1804; Euvipio Szépligeti, 1904, with Stenobracon Szépligeti, 1901; Glyptomorpha baetica var. mauretanica Szépligeti,...
Tipo: Article / Letter to the editor
Palavras-chave: Braconidae; Cossidae; Crambidae; Noctuidae; Pyralidae; Parasites; Parasitoids; Cereal stem borers; Amicrocentrum; Bassus; Amyosoma; Bracon; Digonogastra; Iphiaulax; Mesobraconoides; Steno- bracon; Euvipio; Tropobracon; Chelonus; Phanerotoma; Parallorhogas; Rhaconotus; Meteorus; Macrocentrus; Cotesia; Dolichogenidea; Glyptapanteles; Orgilus; Afrotropical; Oriental; Australian; East Palaearctic; Nearctic; Distribution; Keys; Biology.; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317822

Anchimolgus gratus n. sp. (Copepoda: Poecilostomatoida: Anchimolgidae), associated with the scleractinian coral Lithactinia novaehiberniae in New Caledonia
Provedor de dados: 16
Autores: Humes, Arthur G.
Anchimolgus gratus n. sp., associated with the fungiid coral Lithactinia novaehiberniae Lesson, 1831 in New Caledonia, is distinguished from its congeners (except A. pandus Humes, 1978) by the formula III,I,5 on the third segment of the exopod of leg 4. The new species differs from A. pandus which is much smaller and in which the female genital double-somite is as long as wide.
Tipo: Article / Letter to the editor
Palavras-chave: Copepoda; Poecilostomatoida; Anchimolgus; Associate; Scleractinian coral; New Caledonia.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/503901

Status and conservation of old-growth forests and endemic birds in the pine-oak zone of the Sierra Madre Occidental, Mexico
Provedor de dados: 16
Autores: Lammertink, J.M.; Rojas-Tomé, J.A.; Casillas-Orona, F.M.; Otto, R.L.
The pine-oak forests of the Sierra Madre Occidental, a mountain range in NW Mexico, have recently been recognized as an area of high endemism and biodiversity. Selective logging threatens three bird species endemic to this habitat, who depend on standing dead trees (snags). This report is based on an 11 month field survey that aimed to locate oldgrowth remnants and to assess the status of the endemic birds. Old-growth is defined here as a forest that has never been logged mechanically. Old-growth forests were located by ground-truthing of areas predicted by various methods: analyses of topographical maps and satellite images, aerial surveys, interviews with forestry technicians and local inhabitants, and literature studies. None of the prediction methods...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/506361

The Early Oligocene rodent fauna of Olalla 4A (Teruel, Spain)
Provedor de dados: 16
Autores: Freudenthal, M.
The rodent fauna of the locality Olalla 4A is composed of Theridomorpha, Cricetidae, Gliridae, and Sciuridae. A new genus of Cricetidae is described: Atavocricetodon, with three new species: Atavocricetodon atavoides sp. nov., A. nanoides sp. nov., and A. minusculus sp. nov. Two new species of Gliridae are described: Gliravus olallensis sp. nov. and Bransatoglis parvus sp. nov. Comparison with Montalban led to the description of yet another new species from that locality: A. hugueneyae. Discussion of the Olalla fauna shows that it must be younger than the 'Grande Coupure' and older than the classical locality of Montalbán, in other words Early Oligocene.
Tipo: Article / Letter to the editor
Palavras-chave: 38.22.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317421

Hyperthelie, Wurfgröße und Trächtigkeitsdauer bei der Unterfamilie Tenrecinae Cabrera, 1925 (Mammalia: Insectivora: Tenrecidae), nebst Bemerkungen zur Längsstreifung der Gattung Hemicentetes
Provedor de dados: 16
Autores: Poduschka, Walter.
In a comparison of basic reproductive variables (number of teats, litter size, and duration of pregnancy) in the Madagascan Tenrecinae, some striking features (hyperthelia, litter size) are observed in Tenrec ecaudatus Lacépède, 1799 and the genus Hemicentetes Mivart, 1871. These variations are compared to Setifer setosus Froriep, 1806 and Echinops telfairi Martin, 1838. Tenrec ecaudatus gives birth to litters at intervals shorter than what was once believed to be the duration of pregnancy. This could be due either to superfetation, or to giving birth to one litter in two or more installments. The longitudinal stripe pattern of the genus Hemicentetes is interpreted as a mimicry of the sympatric, equally striped, juvenile Tenrec ecaudatus. The latter...
Tipo: Article / Letter to the editor
Palavras-chave: Insectivora; Tenrecidae; Hyperthelia; Reproduction; Litter size; Pregnancy; Mimicry.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504596

Historical Biogeography of the Southeast Asian genus Spatholobus (Legum.-Papilionoideae) and its allies
Provedor de dados: 16
Autores: Ridder-Numan, Jeannette W.A.
The genera Butea, Meizotropis and Spatholobus (Leguminosae—Papilionoideae), occurring in continental Southeast Asia and the West Malesian Archipelago, are treated phylogenetically with Kunstleria as an outgroup. The genera Spatholobus (29 species), Butea and Meizotropis (each 2 species) are usually placed in the tribe Phaseoleae of the Papilionoideae, whereas Kunstleria belongs to the less advanced tribe Millettieae. Spatholobus is probably basal in the Phaseoleae. An analysis with PAUP of the datamatrix containing 80 macromorphological, 10 leaf anatomical and 7 pollen morphological characters resulted in three most parsimonious trees (MPTs) with a length of 589 steps. As for the method, it turned out that the option ‘addition sequence random’ gave more...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526319

Learned news
Provedor de dados: 16
Autores: NN.
Next November the 5-weeks Bogor/Leiden course on Plant taxonomy and ecology (sponsored by UNESCO and the MacArthur Foundation) is due to be organised again in Bogor. SE Asian botanists (from Vietnam, Laos and Cambodia to Papua New Guinea) with a BSc level and knowledge of English, who are interested in taxonomy and flora revisions, are welcome. Further information can be obtained from Dr. Dedy Darnaedi (BO).
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/533355

Taxonomy of the Ropalidia flavopicta-complex (Hymenoptera: Vespidae: Polistinae)
Provedor de dados: 16
Autores: Kojima, J.
The taxonomy of the "species" treated as subspecies of Ropalidia flavopicta (= R. flavopicta-complex) by van der Vecht (1962) were reexamined. Four forms in the complex other than the species in the Philippine Islands are concluded to be valid species: R. flavopicta (Smith), R. javanica van der Vecht, R. ochracea van der Vecht, and R. ornaticeps (Cameron). The two subspecies of the Philippine species, R. flavobrunnea van der Vecht, namely lapiniga Kojima and iracunda Kojima, are sunk into the nominate species. A new species is described based on a female listed under "R. flavopicta flavobrunnea " by van der Vecht (1962).
Tipo: Article / Letter to the editor
Palavras-chave: Hymenoptera; Vespidae; Polistinae; Ropalidia flavopicta; Southeast Asia; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318789

Recente veranderingen in de Nederlandse zeewierflora I. Additionele soorten van Hincksia, Herponema en Kuetzingiella (Ectocarpaceae, Phaeophyta)
Provedor de dados: 16
Autores: Stegenga, Herre.
The first occurrence in the Netherlands is reported of Hincksia hincksiae, H. intermedia, Herponema solitarium and Kuetzingiella battersii. Descriptions and illustrations are given, and a revised key to the Dutch species of Hincksia is provided.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527544

Garthambrus, a new genus of deep water parthenopid crabs (Crustacea: Decapoda: Brachyura) from the Indo-Pacific, with description of a new species from the Seychelles
Provedor de dados: 16
Autores: Ng, P.K.L.
A new genus of parthenopid crab, Garthambrus gen. nov., characterised by a broad carapace with strongly raised branchial and gastric regions, distinctive rostrum, sub-cylindrical ambulatory meri and a long distal segment of the second male pleopod, is established for six deep water species from various parts of the Pacific. A new species, Garthambrus posidon spec, nov., is also described from depths of between 480 to 600 m off the Seychelles in the Indian Ocean. It differs from its closest congener, G. poupini (Garth, 1993), in having a proportionately broader carapace, less granulated carapace and chelipedal surfaces, and in the form of the carapace regions.
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Decapoda; Parthenopidae; Garthambrus gen. nov.; Garthambrus posidon spec. nov.; Deep water; Indo-Pacihc; Seychelles; 42.74.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318833

Fruit and seed of Beilschmiedie (Lauraceae) in New Zealand
Provedor de dados: 16
Autores: Gardner, R.O.
The differences in the fruit and seed of the two New Zealand species of Beilschmiedia, B. tarairi and B. lawa, indicate that these organs might be a fertile source of taxonomic characters in the genus. Beilschmiedia neocaledonica of New Caledonia is like B. tarairi in having a mucilaginous layer in both fruit wall and seedcoat, while B. tawa lacks these layers.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524440

Geitonoplesiaceae
Provedor de dados: 16
Autores: Laferrière, Joseph E.
One of the small liliaceous families, recently described as separate, formerly included in Luzuriagaceae, Philesiaceae, Smilacaceae, or earlier in Liliaceae. The family has only two monotypic genera, Eustrephus and Geitonoplesium, both occurring also in Malesia. The family and species are described and annotated; there is a key to the genera. A paragraph on palynology is contributed by R.W. J.M. van der Ham. Illustration is by two full-page line drawings.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/532686

Review
Provedor de dados: 16
Autores: Schuiteman, A.
The number of orchid species in New Guinea is not easily estimated; there are many large, poorly studied genera, of which scores of undescribed species as well as many synonyms are waiting to be discovered. There may well be about 2500 species in all: almost double the size of the entire phanerogamous flora of the Netherlands! Only few recent publications (apart from taxonomic revisions of individual genera) are available to those who want to learn more about them. The most important is still the translation into English of Schlechter‘s 1914 classic ‘Die Orchidaceen von Deutsch-Neu-Guinea’, which appeared in 1982 as ‘The Orchidaceae of German New Guinea’. Unfortunately the Latin descriptions were not translated, and Schlechter’s illustrations consist...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526194

Original watercolours donated by Cornelius Sittardus to Conrad Gesner, and published by Gesner in his (1558-1670) works on aquatic animals
Provedor de dados: 16
Autores: Holthuis, L.B.
Some original watercolours, that were donated by the sixteenth century physician Cornelius Sittardus, to Conrad Gesner, who published them in his "Historia Animalium Liber IV(1558), at present are kept in the National Museum of Natural History of Leiden. These watercolours are discussed here, as well as the other figures of the Sittardus collection published by Gesner.
Tipo: Article / Letter to the editor
Palavras-chave: Conrad Gesner; Cornelius Sittardus; Gysbertus Horstius; Cetacea; Pisces; Tunicata; Coelenterata; Mollusca; Echinodermata; Insecta; Crustacea Decapoda; Fungi; Original 16th century illustrations; 42.01.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317918

Errata
Provedor de dados: 16
Autores: NN.
– De aanduiding ‘r’ is weggevallen bij Astragalus glycyphyllos, Ceterach officinarum en Vaccinium uliginosum. Toch zouden we ook van deze soorten graag Rode-Lijstformulieren ontvangen. – Daarnaast staat bij Knautia arvensis, Polystichum lonchitis en Verbascum nigrum een ‘r’ in plaats van een ‘a’; het is niet nodig voor deze soorten een Rode-Lijstformulier in te vullen, maar wèl om een abundantieschatting te maken.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526841

Boekbespreking
Provedor de dados: 16
Autores: Kruijer, H.
S.R. Gradstein &amp; H.M.H. van Melick, De Nederlandse Levermossen &amp; Hauwmossen. Flora en verspreidingsatlas van de Nederlandse Hepaticae en Anthocerotae, KNNV Natuurhistorische Bibliotheek no. 64, Utrecht, 1996, 366 pag., ƒ 69,50 (ƒ 57,50 voor KNNV-leden bij de KNNV), ISBN 90-5011-089-4. — Deze flora en verspreidingsatlas van de Nederlandse lever- en hauwmossen is een vervolg op de eerder verschenen flora en verspreidingsatlas van “De Nederlandse Bladmossen” (A. Touw &amp; W.V. Rubers, 1989). De bewerking van de Nederlandse lever- en hauwmossen is uitgevoerd door de Bryologische en Lichenologische Werkgroep van de Koninklijke Nederlandse Natuurhistorische Vereniging met bijdragen van, naast die van de samenstellende auteurs, 10 andere medewerkers. De...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527412

Sex-diagnosis of human skulls
Provedor de dados: 16
Autores: Looze, Ellen M.A. de.
For 41 human skulls from the 19th century in the collection of the Zoological Museum Amsterdam the discriminant function score was calculated using a set of twelve variables in order to arrive at a best-as-possible sex-diagnosis. The function used was developed by Van Vark &amp; Pasveer (1994). This led to a diagnosis of 18 females and 23 males, with an estimated percentage of misclassifications of no more than 13%.
Tipo: Article / Letter to the editor
Palavras-chave: Multivariate statistical methods; Sex-diagnosis; Skulls of Homo sapiens.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505270

Dr C. Beets (1916-1995) and the 'Rijksmuseum van Geologie en Mineralogie'
Provedor de dados: 16
Autores: Winkler Prins, C.F.
Dr Cornelis Beets, internationally renowned specialist of Indonesian Cainozoic molluscs, died on the 28th of July 1995. Born April 25, 1916, he read geology at Leiden University and obtained his PhD in 1941 on a geological study of the Turin Hills (Italy). When working on his PhD, he had already started studying the large collections of Cainozoic molluscs brought together by Professor K. Martin, the first director of the National Museum of Geology and Mineralogy at Leiden and his preceptor as far as the molluscs were concerned. He used the wartime years to study the Plio-Pleistocene molluscs from The Netherlands, whilst employed by the Dutch National Coalmines. After World War II he started to work for the Royal Dutch/Shell Group, which brought him to many...
Tipo: Article / Letter to the editor
Palavras-chave: 38.04.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317452

The genus Hippolyte Leach, 1814 (Crustacea: Decapoda: Caridea: Hippolytidae) in the East Atlantic Ocean and the Mediterranean Sea, with a checklist of all species in the genus
Provedor de dados: 16
Autores: d'Udekem d'Acoz, C.
The genus Hippolyte Leach in the East Atlantic and the Mediterranean is revised and a list of the world species is given. Eleven species occur in the area studied: H. coerulescens (Fabricius), H. garciarasoi spec. nov., H. inermis Leach, H. lagarderei d'Udekem d'Acoz, H. leptocerus (Heller), H. leptometrae Ledoyer, H. niezabitowskii spec. nov., H. palliola Kensley, H. prideauxiana Leach, H. sapphica d'Udekem d'Acoz, H. varians Leach. An elaborate key, complete descriptions and illustrations of all species are provided, while their ecology is discussed in detail. A morphological account is also given for the species occuring in the Suez Canal: H. proteus (Paulson) and H. ventricosa H. Milne Edwards. It is shown that H. prideauxiana (previously H. huntii)...
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Decapoda; Caridea; Hippolytidae; Hippolyte; Shrimp; Systematics; Discontinu- ous variations; Neoteny; Ecology; East Atlantic; Mediterranean; World species list.; 42.74.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317714

Board news
Provedor de dados: 16
Autores: NN.
Composition of the Board of the Foundation Flora Malesiana. At the last Board meeting in Kew, during the Third Flora Malesiana Symposium, the members Drs. Aprilani Soegiarto, K. Larsen, P. Morat, M.A. Rifai and A. Latiff Mohamad, of whom the term expired, were happy to continue on the Board. The term of Dr. B.A. Barlow was finished and he is replaced by Dr. J.G. West. Dr. G. L1. Lucas resigned from the Board because he has retired as Keeper of K. Dr. J. Dransfield replaces him.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/533115

Type specimens of Phasmida in the Nationaal Natuurhistorisch Museum, Leiden (Insecta: Phasmida)
Provedor de dados: 16
Autores: Bragg, P.E.
Type specimens of 75 taxa of Phasmida have been identified in the Nationaal Natuurhistorisch Museum, Leiden. The taxa are listed alphabetically by species, with the number of specimens, sex and locality data. The material includes species described by Bragg, Bragg &amp; Chan, Gunther, de Haan, Kirby, Lichtenstein, Olivier, and Stoll. The type of pin used was found to be particularly useful as an aid to identification of older material. There are a number of omissions and discrepancies in the published data, these are clarified. Some background information on the original publications and the described material is included.
Tipo: Article / Letter to the editor
Palavras-chave: Phasmida; Type species; Nationaal Natuurhistorisch Museum; Leiden; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/319215

Reconsideration of the taxonomy of the Ropalidia malayana-complex (Hymenoptera: Vespidae: Polistinae)
Provedor de dados: 16
Autores: Kojima, J.
The taxonomy of the Ropalidia malayana-complex is reconsidered after studying mainly the specimens examined by van der Vecht (1941, 1962) and housed in the Nationaal Natuurhistorisch Museum, Leiden. The complex is shown to consist of three species: R. malayana (Cameron, 1903) [= R. parvimaculata (Cameron, 1907), = R. delicata Dover, 1931], R. erythrospila (Cameron, 1908) and R. pseudomalayana spec. nov. The last species is described from Borneo.
Tipo: Article / Letter to the editor
Palavras-chave: Hymenoptera; Polistinae; Vespidae; Ropalidia malayana; Southeast Asia; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318931

Een floristisch meetnet voor de grote zoete wateren
Provedor de dados: 16
Autores: Groen, Kees (C.) L.G.; Tamis, Wil L.M.
In 1995 heeft FLORON in opdracht van het RIZA, een onderzoeksinstituut van Rijkswaterstaat, een floristisch meetnet ontworpen voor de oevers van de grote zoete wateren: Rijn, Maas, IJsselmeer, Randmeren en de Zoete Deltawateren. De afgelopen jaren is de behoefte aan biotische meetnetgegevens bijoverheden en terreinbeheerders sterk toegenomen. Ze geven de mogelijkheid vrij snel veranderingen te signaleren als gevolg van gevoerd beleid of beheer. Intensief en systematisch kijken op een beperkt aantal lokaties leveren belangrijke aanvullingen op de verspreidingsgegevens van planten en dieren, die in het kader van atlasprojecten worden verzameld. Het floristisch meetnet wordt onderdeel van een programma met verschillende, op elkaar afgestemde meetnetten rond...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/528022

Thorea ramosissima Bory (Rhodophyta) nu ook in de IJssel
Provedor de dados: 16
Autores: Reinink, Kasper.
In addition to the first record of Thorea ramosissima in the river Maas¹ it has been found subsequently in 26 1 x 1 km grid squares of the river IJssel between Velp and Dieren. Here the plants are growing on stones of groins to 40 cm below the water surface.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526874

Three new Mediterranean Maera with remarks on the Quadrimana complex (Crustacea, Amphipoda, Melitidae)
Provedor de dados: 16
Autores: Krapp, Traudl; Marti, Amparo; Ruffo, Sandro.
Three new Mediterranean species of the Maera quadrimana complex are described and illustrated: Maera revelata from the western sector, M. ariadne from the eastern one and M. aurora from the entire Mediterranean. Maera inaequipes (A. Costa, 1857) is redescribed and its synonymy and geographical distribution are revised to stabilize the confused taxonomy of this species. These four species are compared by means of a table and an identification key. The Maera quadrimana complex is defined and 19 species are recognized in the world. This group is briefly reviewed from a biogeographical point of view.
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Amphipoda; Mediterranean; Maera n.sp.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505128

Northeast Atlantic Late Quaternary planktic Foraminifera as primary productivity and water mass indicators
Provedor de dados: 16
Autores: Kreveld, S.A. van.
Primary productivity and water mass reconstructions based on planktic Foraminifera reveal distinct interglacial/glacial variations for the past 208 ka in a mid-latitude Northeast Atlantic piston core. Average total planktic foraminiferal absolute frequencies and accumulation rates, which are interpreted to reflect primary productivity, are higher in interglacial than in glacial sediments. Low total planktic foraminiferal absolute frequencies and accumulation rates in 'Heinrich layers' are likewise interpreted to show low production of Foraminifera due to low surface ocean fertility. 'Heinrich layers' are enriched in ice-rafted debris, recording periods of massive iceberg production and rapid melting in the Northeast Atlantic. The dominance of...
Tipo: Article / Letter to the editor
Palavras-chave: 38.20.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317525

Parhippolyte uveae Borradaile, 1899 (Crustacea: Decapoda: Hippolytidae) from Kakaban Island, Indonesia
Provedor de dados: 16
Autores: Fransen, C.H.J.M.; Tomascik, T.
Parhippolyte uveae Borradaile, 1899 is recorded from Kakaban Island, East Kalimantan, Indonesia. Its morphological variation is described, and its taxonomical status discussed.
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Decapoda; Caridea; Hippolytidae; Parhippolyte; Indo-West Pacific; Anchialine lagoon; 42.74.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/319301

Heelbeen (Holosteum umbellatum L.) op kerkhoven en daarbuiten in Noord-Limburg en in ‘Het land van Cuyk’
Provedor de dados: 16
Autores: Reijerse, Fons (A.) I.
A survey is given of the occurrence of Holosteum umbellatum L. especially on cemeteries in ‘Noord-Limburg’ and ‘Het land van Cuyk’. Old churchyards are functioning as the main refugium of the species. The author found Holosteum in 6 cemeteries and on one location along a road, of which at least three had not yet been recorded in the past. New records seem to be the result of intensified investigation instead of expansion of the distribution. In the cemeteries the species is accompanied by springflowering therophytes, xerophytes and geophytes.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527890

Book review [Kleinschmetterlinge oder Microlepidoptera IV. Flachleibmotten (Depressariidae)]
Provedor de dados: 16
Autores: Nieukerken, E.J. van.
Tipo: Book review
Palavras-chave: Depressariidae; Lepidoptera; Book review; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/227704

Reviews
Provedor de dados: 16
Autores: Nooteboom, H.P.; Adema, Frits.
This work is largely built on the papers from four symposia from the International Congress of Ecology, Yokohama 1990. It is an addition to volume 12 of the handbook of vegetation science dealing with the application of vegetation science in forestry, mostly in Europe. The critics of that volume would want a more diversified demonstration of forestry related vegetation science work and a wide representation of forest types from different continents. Well, they have got what they wanted, at least for Asia. Already in the first part, ‘Overview’, with three chapters [1. Forest ecosystems of East and Southeast Asia in a global perspective; 2. Climatic relations of the forests of East and Southeast Asia; 3. Species diversity in East Asia in a global...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526200

Erigeron karvinskianus DC. (Muurfijnstraal), een nieuwe inheemse urbane soort
Provedor de dados: 16
Autores: Denters, Ton.
Erigeron karvinskianus has been reported from several localities in pavement and on quay-walls in Amsterdam. Its phyto-sociological position is discussed.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527624

A study of stomach contents of Cory's shearwater, Calonectris diomedea borealis (Cory, 1881) (Aves: Procellariidae), from the Macaronesian Islands
Provedor de dados: 16
Autores: Hartog, J.C. den; Clarke, M.R.
Data are presented on the diet of Cory's Shearwater Calonectris diomedea borealis (Cory, 1881) resulting from stomach investigations based on 18 birds from Hierro (Canary Islands), 5 from Selvagem Grande (Selvagens or Salvage Islands), 2 from São Miguel and 1 from São Jorge (Azores), collected between 1977 and 1981. These data confirm the general idea that this shearwater feeds principally on fish and squid. The glandular stomachs of 9 birds from Hierro contained significant quantities of food, varying in wet weight from ca. 4-40 gm; in four cases more or less complete squids were present, all Ommastrephes bartrami (Le Sueur, 1821). In addition, the gizzards of all 26 birds, except one, contained fragments of squid beaks belonging to 12 species. Several of...
Tipo: Article / Letter to the editor
Palavras-chave: Procellariidae; Calonectris diomedea borealis (Cory; 1881); Diet; Stomach contents; Cephalopoda; SE North Atlantic; Macaronesia; 42.83.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318278

In memorium Dr. Agatha Gijzen (1904-1995), eminent museum historian and zoo biologist
Provedor de dados: 16
Autores: Bruggen, A.C. van.
Dr Agatha Gijzen (Rotterdam *9 October 1904, Merksem/Belgium †19 February 1995) was a remarkable zoologist in more than one respect. Although her professional career, spanning more than three and a half decades, was largely spent as a staff zoologist in the service of the famous Antwerp/ Planckendael zoological gardens complex in Belgium (1947-1974), she had already made her name as a zoologist/historian by obtaining her Ph.D. degree in 1938 on an extensive first study of the history of the Rijksmuseum van Natuurlijke Historie in Leiden, the national museum of natural history of The Netherlands. She properly organized the archives of the museum for the very first time and her published doctoral thesis (unfortunately only available in Dutch; summary in...
Tipo: Article / Letter to the editor
Palavras-chave: History of zoology; History of natural history museums; Rijksmuseum van Natuurlijke Historie; Zoo biology; Antwerp Zoo; Planckendael Zoo; Mammalia; Giraffidae: Okapia; 42.01.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318966

Contributions towards a monograph of Phoma (Coelomycetes) — III. 2. Misapplications of the type species name and the generic synonyms of section Plenodomus (Excluded species)
Provedor de dados: 16
Autores: Boerema, G.H.; Loerakker, W.M.; Hamers, Maria E.C.
Various old records of Phoma lingam (teleomorph Leptosphaeria maculans) on non-cruciferous plants proved to be based on misidentifications. In the past the fungus has also often been confused with other fungi occurring on crucifers. Forty-five species formerly classified under the generic synonyms Plenodomus, Diploptenodomus, Leptophoma and Deuterophoma were excluded from Phoma sect. Plenodomus, seventeen of them being non-scleroplectenchymatous species of Phoma. Asteromella cocogena, Asteromella pomi and Phoma versabilis are described as new species and twelve new combinations are proposed: Ascochyta aggregata (Höhnel), Cytosporella cenangium (Corda), Fusicoccum hoveniae (Gucevicz), Phacidiella hiemalis (Desm.), Phoma cruenta (Sydow), Phoma filarszkyana...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/532043

New species of the genus Bulbophyllum (Orchidaceae) from Sumatra, Borneo, and Papua New Guinea
Provedor de dados: 16
Autores: Vermeulen, J.J.
Nineteen new species of the genus Bulbophyllum Thouars (Orchidaceae) are described. They originate from Sumatra (including the Riau Archipelago), Borneo, and Papua New Guinea. Five species belong to sect. Hirtula Ridl., four to sect. Leptopus Schltr., three to sect. Hybochilus Schltr., two to sect. Sestochilus (Breda) Benth. &amp; Hook.f., and one to the sections Cirrhopetalum (Lindl.) Rchb.f., Epicrianthes (Blume) Benth. &amp; Hook, f., and Monilibulbus J.J. Sm. each. Two more species cannot be assigned to any section with certainty; one of these may belong to sect. Desmosanthes (Blume) J. J. Sm. The other shows similarity to B. bisetum Lindl. and B. bisetoides Seidenf.; these three species together may well constitute a separate section.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525158

Cephalopods from the Netherlands Indian Ocean Programme (NIOP)- I. Chiroteuthis spoeli n. spec. and Chiroteuthis picteti somaliensis n. subspec
Provedor de dados: 16
Autores: Salcedo-Vargas, Mario Alejandro.
Two new squids from the western Indian Ocean acquired during the Netherlands Indian Ocean Programme (NIOP) expeditions in 1992-1993 are described. The species new to science is Chiroteuthis (C.) spoeli, member of the subgenus Chiroteuthis s.str., which differs from the type species Chiroteuthis (C.) joubini chiefly in the enlarged suckers on arm II and III and the tentacular sucker morphology. The new subspecies is assigned to the subgenus Chirothauma in the species Chiroteuthis (C.) picteti and defined as Chiroteuthis (C.) picteti somaliensis, and is characterized by the sharp teeth in the arms. The genus Chiroteuthis, as now defined, consists of 2 subgenera, 7 species and 4 subspecies.
Tipo: Article / Letter to the editor
Palavras-chave: Cephalopoda; Chiroteuthis; Chirothauma; Spoeli; Somaliensis; Taxonomy; West Indian Ocean; Deep sea squids.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505233

Bulbophyllum gemma-reginae, an interesting new orchid species from Borneo
Provedor de dados: 16
Autores: Vermeulen, J.J.
On a field trip into the interior of Sabah, Borneo, in 1986, a small Bulbophyllum species (Orchidaceae) without flowers was collected, and transferred to the greenhouse of Mr. P. Jongejan, Amersfoort, the Netherlands. Only after several years the plant rewarded the good care given to it with a few sprigs of flowers. It then appeared to be an undescribed species of great elegance, belonging to the section Hirtula Ridley. It displays an unusual combination of characters: it has a distinctly elongated lip, as is found in B. jolandae J.J. Vermeulen, and B. lasioglossum Rolfe, which both have an elongated inflorescence. The new species, however, has a subumbellate inflorescence, as occurs in B. carinilabium J.J. Vermeulen, and B. hirtulum Ridley, which both...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526260

Index to scientific plant names
Provedor de dados: 16
Autores: NN.
Suprageneric epithets have been entered under the family name to which they belong preceded by the indication of their rank (subfamily, tribe, etc.)- Infrageneric epithets have been entered immediately under the generic name to which they belong, preceded by the indication of their rank (subgenus, sections, etc.). Infraspecific epithets have been entered under the specific name to which they belong preceded by the indication of their rank (subspecies, variety, forma, etc.). Synonyms have been printed in italics. Page numbers in bold type denote main treatment; an asterisk behind a page number denotes the presence of a figure of the concerned taxon.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/532601

Standaardlijst van de Nederlandse flora 1996. Overzicht van wijzigingen sinds 1990
Provedor de dados: 16
Autores: Meijden, Ruud van der; Duuren, Lodewijk van; Duistermaat, Leni (H.).
This List, the fifth of its kind¹²³4, presents only the differences with the 1990 List. It is based on the 22nd ed. of Heukels’ Flora van Nederland. 5 Criteria for inclusion of taxa in the List are the same as in the 1990 List. Added are 44 new taxa, 15 are removed, bringing the total number of taxa recognized to 1477.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526911

Asellus (Asellus) monticola en Iran (Crustacea, Isopoda, Asellota, Asellidae)
Provedor de dados: 16
Autores: Henry, Jean-Paul; Magniez, Guy.
Asellus (Asellus) monticola monticola Birstein, 1932 has been found in a spring in the extreme NW of Iran. Amplifications of the original description of this valid species, which is clearly distinct from A. aquaticus, are given. Contrary to A. aquaticus, A. monticola appears to be strongly endemic and stenotopic; its settlement may have taken place prior to the expansion of A. aquaticus across Europe. Some reflections on the taxonomy and biogeography of the Asellidae of the Transcaucasian region are included.
Tipo: Article / Letter to the editor
Palavras-chave: Aras-Koura Basin; Asellidae; Asellus monticola; Biogeography; Endemism.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505423

New Malesian species of Viscaceae
Provedor de dados: 16
Autores: Barlow, Bryan A.
Three new Malesian species of Viscaceae are described. Ginalloa flagellaris Barlow is distinguished as a species from New Guinea and New Britain, previously included within G. arnottiana Korthals. Viscum exile Barlow is recognized as a new species endemic to Celebes, related to V. ovalifolium. Viscum scurruloideum Barlow is named as a new species endemic to Java, equivalent to the taxon described as Ginalloa falcata by Danser.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525159

A new genus and species of Emesinae (Heteroptera: Reduviidae) from Suriname
Provedor de dados: 16
Autores: Maldonado Capriles, J.; Doesburg, P.H. van.
A new genus and species belonging to the tribe Emesini of the subfamily Emesinae, is described from Suriname.
Tipo: Article / Letter to the editor
Palavras-chave: Insecta; Heteroptera; Reduviidae; Emesinae; Belosternella genus nov.; New species; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/319157

Reviews
Provedor de dados: 16
Autores: Welzen, P.C. van; Ham, R.W.J.M. van der; Heel, W.A. van; Uffelen, G.A. van; Wilde, W.J.J.O. de; Kalkman, C.; Valkenburg, Johan L.C.H. van.
This project of the Royal Botanic Garden Edinburgh aims to provide regional manuals and on-line identification computer programs to the timber species of Dipterocarpaceae. The Singapore manual is a first trial, later editions should include other islands in the Malay Archipelago. The possibility is also offered to have tailor-made manuals for specific regions against cost price. Many data have been gathered, especially vegetative characters one can readily observe while standing underneath these enormous trees. In this respect the database will be very useful, because due to the very irregular flowering of the Dipterocarpaceae, flowers and fruits are usually unavailable, and even if they are present, they are found high in the tree.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525707

A revision of the Yelicones species (Hymenoptera: Braconidae: Rogadinae) from Central America, with descriptions of sixteen new species
Provedor de dados: 16
Autores: Quicke, D.L.J.; Chishti, M.J.K.; Basibuyuk, H.H.
The genus Yelicones Cameron, 1887, from North and Central America is revised. Ninteen species are recognized: Y. arizonus spec. nov. from U.S.A. (Arizona) and Mexico; Y. barroci spec. nov. from Panama; Y. bicoloripes spec. nov. from Costa Rica and Panama; Y. canalensis spec. nov. from Panama; Y. confusus spec. nov. from Mexico and Panama; Y. crica spec. nov. from Costa Rica; Y. delicatus (Cresson), from U.S.A. to Panama; Y. howdeni spec. nov. from Mexico; Y. infuriatus spec. nov. from Mexico; Y. longulus spec. nov. from Panama; Y. luteus spec. nov. from Panama; Y. nigrigaster spec. nov. from Dominican Republic; Y. nigromarginatus Quicke &amp; Kruft from southern U.S.A.; Y. panameus spec. nov. from Panama; Y. pilops Quicke &amp; Kruft, from U.S.A. to...
Tipo: Article / Letter to the editor
Palavras-chave: Hymenoptera; Braconidae; Rogadinae; Yelicones; Meso-America; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/319146

Rectificatie
Provedor de dados: 16
Autores: NN.
In Gorteria 21 4/5 zijn op p. 176 bij Fig. 4.4 en p. 177 bij Fig. 4.5 de legenda verwisseld. Het moet zijn: Fig. 4.4: O voorkomen tot 1980 • voorkomen vanaf 1975 Fig. 4.5: □ kwartierhok 1902—1950 ■ kilometerhok vanaf 1975
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527098

Boekaankondigingen
Provedor de dados: 16
Autores: Meijden, R. van der.
*J. Buurman, The eastern part of West-Friesland in later prehistory. Agricultural and environmental aspects, Proefschrift R.U. Leiden, 1996, 223 pag. A. Farjon &amp; P. van der Linden (red.), Atlas van de flora van het Gooi, Stichting Milieutijdschrift Gooi, Vechtstreek e.o., Hilversum, 1996, 354 pag., ƒ 65. Info: De Wijde Blik, 035-6859402. — Een verspreidingsatlas waarin de soorten per ecologische groep zijn gerangschikt. De vondsten zijn per kilometerhok gerangschikt op twee kaartjes: voor en na 1970. Bij een groot aantal soorten zijn teksten gemaakt, vergelijkbaar met die van de eerste twee delen van de Atlas van de Nederlandse Flora. Een goed gedocumenteerd, kritisch werk.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527137

Redescription of Arcturides cornutus Studer, 1882 from the Crozet Islands and Prince Edward Island (Crustacea, Isopoda, Valvifera)
Provedor de dados: 16
Autores: Park, Ja-Yang.
A redescription of the polymorphic arcturid species Arcturides cornutus from the Crozet Islands and Prince Edward Island is presented. The polymorphism of specimens from various regions and the systematic position of Pseudidotheinae, to which Arcturides cornutus belongs, are discussed.
Tipo: Article / Letter to the editor
Palavras-chave: Crustacea; Valvifera; Pseudidotheinae; Polymorphism.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505497

Notes on Ceramiaceae (Rhodophyta) from the eastern Cape Province, South Africa. II. Zonariophila semiendophytica nov. gen., nov. spec., a minute epi/endophyte of Zonaria subarticulata (Lamour.) Papenf
Provedor de dados: 16
Autores: Stegenga, H.; Kemperman, Th.C.M.
Zonariophila semiendophytica is described as a new genus and species from the coast of the East Cape, South Africa. It is characterized by a single large elongate basal cell immersed in the thallus of Zonaria subarticulata (Lamour.) Papenf.; this laterally compressed cell gives rise, on both edges, to several short (up to 2.5 mm), uncorticated, erect, sparingly branched filaments. The position and structure of the procarp (the subapical cell in a determinate female fertile filament bears two sterile pericentral cells and one fertile pericentral cell, the latter with one sterile cell and a four-celled carpogonial filament), and the development of a single involucral filament from the hypogenous cell, put this genus in the immediate vicinity of...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524502

Capparis buwaldae Jacobs (Capparaceae). A new Myrmecophyte from Borneo
Provedor de dados: 16
Autores: Maschwitz, U.; Dumpert, K.; Moog, J.; LaFrankie, J.V.; Azarae, I.Hj.
Capparis buwaldae, a climber of primary forests endemic to Borneo, is a myrmecophyte with stem domatia. The stems become hollow by pith degeneration and develop oval openings allowing ants to enter. These openings are localized at a strictly defined area above the insertion of the leaves and a pair of nodal thorny stipules. They gradually split open from the outside. The openings may develop into elevated chimney-like structures or close again by growth if not kept open by ants. The plant may be inhabited by various opportunistically nesting arboreal ants including Crematogaster, Monomorium, and Camponotus species. Specialized myrmecophytic ants could not be found. Neither nectaries, nor food bodies, nor trophobiotic endophytic homopterans could be...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525770

De FLORON-projecten in 1996
Provedor de dados: 16
Autores: NN.
Binnenkort komt de nieuwe, 22e editie van Heukels’ Flora van Nederland uit. Naast verscheidene naamswijzigingen van plantensoorten betekent dat de toevoeging van enkele tientallen plantensoorten aan de standaardlijst van de Nederlandse flora, en dus ook het verschijnen van een nieuwe streeplijst voor het Totaalproject. We maken van de gelegenheid gebruik om ook een aantal andere veranderingen door te voeren. Het formaat van de streeplijst blijft ongewijzigd, maar de indeling wordt iets aangepast. Op de voorzijde is ruimte voor alle algemene en zeldzame soorten, met uitzondering van enkele soorten, waarbij veel determinatiefouten worden gemaakt. Het gaat onder andere om Sterrekroos (Callitriche) en Basterdwederik (Epilobium). Verder is er ruimte voor de...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527043

On a new species of Mycena from Spain
Provedor de dados: 16
Autores: Robich, Giovanni.
Mycena calceata Robich, collected at L’Estartit in Spain in November 1993, during the Mycological Days of the European Confederation of Mediterranean Mycology, is described as new to science. It belongs to section Insignis, characterized by the radiating hairs at the base of the stipe, large spores and growing on thin rotting branches of Quercus suber (Cork oak) in mediterranean forest. Viene descritta Mycena calceata spec. nov. raccolta nel mese di novembre 1993, in occasione delle Giornate Micologiche della Confederazione Europea Micologia Mediterranea svoltesi in L’Estartit, Spagna.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/532264

Miscellaneous news
Provedor de dados: 16
Autores: NN.
Tree Flora of Sabah and Sarawak. Mr. A. Berhaman (SAN) has begun his research on Nyctocalos (Bignoniaceae) for a M.Sc. programme at KLU. He spent 2 months at MJG working with Dr. S. Renner on microtechniques and visited L from 20—30 June 1995. He is also studying the Sterculiaceae. — Mr. L. Madani (SAN) is currently revising the family Dichapetalaceae. — Ms. J.T. Pereira (SAN) has completed her revision of the family Crypteroniaceae for Vol. 2; three new species in Borneo have been recognized in this treatment. she has now begun a study of Payena (Sapotaceae). — Dr. J.J. Pipoly III (BRIT) will assist Dr. A. Latiff (UKMB) in the treatment of the Myrsinaceae. He has finished the one for the Philippines. — Mr. J.B. Sugau (SAN) has completed his revision of...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/532807

New hypogean cyclopoid copepods (Crustacea) from the Yucatán Peninsula, Mexico
Provedor de dados: 16
Autores: Fiers, Frank; Reid, Janet W.; Iliffe, Thomas M.; Suárez-Morales, Eduardo.
Four previously unknown hypogean species of cyclopoid copepods were collected in cenotes and wells of the Yucatán Peninsula, Mexico. Diacyclops chakan sp. n. and D. puuc sp. n. differ from their congeners in combining 3-segmented swimming legs, 11-segmented antennules, and legs 1-4 endopodite segment 2 all with 2 setae. Species of Diacyclops rarely occur in tropical regions, and the Diacyclops described here are only the second and third species recorded from Mexico. The benthic D. puuc was found in the large underground reservoir of a cenote. Diacyclops chakan was encountered in such large open subterranean water basins, but more frequently and abundantly in wells. The two Mesocyclops species, M. chaci sp. n. and M. yutsil sp. n., most closely resemble...
Tipo: Article / Letter to the editor
Palavras-chave: Diacyclops; Mesocyclops; Copepoda; Cyclopoida; Biogeography; Evolution; Hypogean; Karst; Species-flock; Taxonomy; Mexico.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504240

Hydrocotyle ranunculoides L.f.: infiltrant in waterland?
Provedor de dados: 16
Autores: Baas, Wim J.; Holverda, Wout J.
The appearance of the alien floating pennywort Hydrocotyle ranunculoides as an invasive weed of an urban waterway in Utrecht (the Netherlands) was the reason to do some research on the possible origin and the distribution of the weed. The plant, propagated in aquatic nurseries, probably escaped as a nuisance weed favoured by two successive abnormally hot summers, with little frost in-between. There are indications that the plant may withstand average Dutch winters. During the autumn of 1995 the species had been recorded on several localities in the Central, Western and Southern part of the Netherlands, one of which in a nature reserve.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526523

Monograph of Arctium L. (Asteraceae). Generic delimitation (including Cousinia Cass, p.p.), revision of the species, pollen morphology, and hybrids
Provedor de dados: 16
Autores: Duistermaat, Helena.
The subject of this thesis is a monograph of the genus Arctium, now including also five species formerly placed into Cousinia. Based on herbarium material and some field observations, this study presents new insights on three subjects: a) the generic delimitation of Arctium, b) the species delimitation within the A. minus-complex, and c) the occurrence of hybridisation. It soon became clear, rather surprisingly, that five species of Cousinia possess hooked involucral bracts like Arctium in its classical concept. The study became focussed then on the relation between Arctium in its classical delimitation and the large Asian genus Cousinia. From a macromorphological point of view the five ‘arctioid’ species of Cousinia should be placed in the extended genus...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/528199

Festuca rubra x Vulpia bromoides, nieuw voor Nederland
Provedor de dados: 16
Autores: Zijlstra, Otto G.
The hybrid was found for the first time outside England growing on a railway bank in Wierden, in the Province of Overijssel. Festuca rubra x Vulpia bromoides
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527232

New taxa and combination for the Rubiaceae of Sri Lanka
Provedor de dados: 16
Autores: Ridsdale, C.E.
In the family Rubiaceae four new taxa in Hedyotis and three new taxa in Lasianthus are described; ten other combinations are also made.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525743

The rediscovery of Cervera atlantica (Johnson, 1861) (Cnidaria: Octocorallia): notes on its identification, ecology and geographical distribution
Provedor de dados: 16
Autores: Williams, R.B.
Cervera atlantica, a small stoloniferan octocoral, was described as Cornularia atlantica by James Yate Johnson in 1861 from Funchal, Madeira. It then remained unrecognized until 1972 when I discovered it on the Mediterranean coast of Spain. I have since confirmed its existence at the type locality and have traced its distribution around Madeira, throughout the Canary Islands, and on Portuguese and English coasts. In the Mediterranean Sea, I have found it along Spanish and French coasts, among the Balearic Islands and on the coast of Cyprus. Cervera atlantica is cryptic and photophobic, living under stones in shallow water (usually at 0-2 m) or in crevices and caves in massive intertidal rocks, protected from direct sunlight. Intolerant of rough water, it...
Tipo: Article / Letter to the editor
Palavras-chave: Octocorallia; Cervera atlantica; Cornularia cornucopiae; Identification; Ecology; Zoogeography.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/505386

Van de leestafel
Provedor de dados: 16
Autores: Hedrén, M.
Door middel van allo-enzymstudies toont de Zweedse auteur aan dat D. praetermissa een permanente tetraploide hybride is die is ontstaan uit D. incarnata en D. maculata/ fuchsii, een resultaat dat eerdere studies gebaseerd op morfologische eigenschappen ondersteunt. Daarnaast noemt de auteur het bestaan van andere tetraploide hybriden die uit dezelfde oudersoorten zijn ontstaan (o.a. D. majalis s.s. en D. sphagnicola). Omdat deze tetraploide taxa gemakkelijk onderling kruisen, en morfologisch overlappen in gebieden waar ze samen voorkomen, concludeert de auteur dat de beste taxonomische oplossing is om deze taxa samen te nemen in één variabele tetraploide soort, D. majalis s.l., maar de afzonderlijk ontstane hybriden als aparte ondersoorten te...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526484

Notes on Cordulegaster Leach, and Neallogaster Cowley, from China, and the identity of Anotogaster annandalei Fraser (Insecta: Odonata: Anisoptera: Cordulegastridae)
Provedor de dados: 16
Autores: Pelt, G.J. van.
A translation of the Chinese description of a female of Neallogaster annandalei (Fraser, 1923), by Zhou (1988) is given and compared with the original description of Anotogaster annandalei. It is concluded that this species should be included in the genus Cordulegaster. A translation of the original Chinese descriptions of Cordulegaster jinensis Zhu &amp; Han, 1992, and Neallogaster choui Yang &amp; Li, 1994, is presented. It is suggested that the two species are conspecific. Material of "Cordulegaster luniferous var. annandalei Klots, 1947" from Yunnan is identified as Neallogaster latifrons Selys, 1878 (?), by which the presence of Neallogaster in China is confirmed.
Tipo: Article / Letter to the editor
Palavras-chave: Cordulegastridae; Anisoptera; Odonata; East Palaearctic; China; Fraser; Klots; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318034

Mating behaviour of the groundwater copepod Parastenocaris phyllura Kiefer, 1938 (Copepoda: Harpacticoida)
Provedor de dados: 16
Autores: Glatzel, Thomas; Schminke, Horst Kurt.
In the course of a cohort study of Parastenocaris phyllura several matings were observed under a microscope and recorded on video. In Parastenocaris phyllura no “precopulatory mate guarding” was found. Each mating behaviour comprises three phases and lasts for about 15 minutes, during which time the male actively moves its antennulae and antennae, pereiopods 1, 2, 3, 4, and furcal rami. The female is held in a characteristic position by the male and is entirely passive during the process.
Tipo: Article / Letter to the editor
Palavras-chave: Harpacticoida; Mating behaviour; Courtship; Parastenocaris phyllura; Groundwater.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504386

Additional notes on species of the Asian genera Endocomis, Horsfieldia, and Knema (Myristicaceae)
Provedor de dados: 16
Autores: Wilde, W.J.J.O. de.
Notes are given on various taxa in the Asian genera Endocomia, Horsfieldia, and Knema of the family Myristicaceae. Newly described taxa are Horsfieldia penangiana subsp. obtusifolia, H. perangusta, and Knema emmae, K. krusemaniana, K. kunstleri subsp. leptophylla, K. longepilosa, and K. ridsdaleana.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524965

Polycarpon tetraphyllum L. (Kransmuur)
Provedor de dados: 16
Autores: Graaf, J. Martien de.
Recently, Polycarpon tetraphyllum is fully naturalized in the urbane areas of Amsterdam, Heemstede, Leiden and Dordrecht, where it grows especially in pavement furrows.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527875

Typification of Volvariella gloiocephala (DC.: Fr.) Boekhout &amp; Enderle
Provedor de dados: 16
Autores: Boekhout, Teun; Enderle, Manfred.
A neotype is designated for Volvariella gloiocephala (DC.: Fr.) Boekhout &amp; Enderle, to serve as an representative collection for the current concept of this species, that generally is considered conspecific with V. speciosa (Fr.: Fr.) Kummer.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/531774

The scyllarid lobsters (Crustacea: Decapoda: Palinuridea) collected by F. Peron and C.A. Lesueur during the 1800-1804 expedition to Australia
Provedor de dados: 16
Autores: Holthuis, L.B.
The original figures of Scyllaridae by Lesueur and manuscript descriptions and notes by Péron, made during the 1800-1804 French Expedition to Australia, are now kept in the Museum d'Histoire Naturelle du Havre, and shed new light on the identity, type locality and whereabouts of these species. The figures and part of the descriptive material are reproduced here.
Tipo: Article / Letter to the editor
Palavras-chave: Scyllaridea; Ibacus peronii; Scyllarides squammosus; Péron and Lesueur; Australia; Mauritius; 42.74.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318437

De geslachtsverdeling bij Myrica gale L
Provedor de dados: 16
Autores: Ploeg, D.T.E. van der.
So far, little attention has been given to the sexual differentiation in the flowers of Myrica gale L. in the Netherlands. A recent survey revealed the existence of monoecious, dioecious, as well as polygamous plants. In monoecious plants the male and female catkins occur either on the same branches (usually with the female flowers at the base of the branch, rarely at the top), or on different ones; in polygamous plants the middle catkins have hermaphrodite flowers. Dioecious plants may change their sex in subsequent years. The information given on this matter in the Flora’s of the Netherlands as well as the United Kingdom is shortly reviewed.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526486

Results of the Rumphius Biohistorical Expedition to Ambon (1990) : Part 5. Mollusca, Gastropoda, Muricidae
Provedor de dados: 16
Autores: Houart, R.
This report deals with the species of Muricidae collected during the Rumphius Biohistorical Expedition on Ambon. At 44 stations, a total of 58 species in 23 genera of the prosobranch gastropod family Muricidae were obtained. The identity and the classification of several nominal taxa is revised. Four species are new to science and are described here: Pygmaepterys cracentis spec. nov. (Muricopsinae), Pascula ambonensis spec. nov. (Ergalataxinae), Thais hadrolineae spec. nov. and Morula rumphiusi spec. nov. (Rapaninae). Some comments are included on the Muricidae described by Rumphius and on their identification. In his "Amboinsche Rariteitkamer" (1705) 21 species of muricids were included, of which 16 were illustrated by Rumphius or Schijnvoet. The identity...
Tipo: Article / Letter to the editor
Palavras-chave: Rumphius expedition; Indonesia; Ambon; Mollusca; Gastropoda; Muricidae; 42.01; 42.73.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318484

Isopoda Asellota de Turquie récoltés en 1987. Netherlands biospeleological explorations in Turkey, 5
Provedor de dados: 16
Autores: Henry, Jean-Paul; Magniez, Guy; Notenboom, Jos.
Asellus aquaticus is present in 19 of about 100 Turkish groundwater stations prospected during biospeleological explorations. All specimens of these stygophilic populations remain oculate, even though their integumental pigmentation is more or less reduced. Proasellus lykaonicus Argano &amp; Pesce, 1978 has been found again in a second cave, nearby the type locality. A large and endemic, stygobiont species, Proasellus pisidicus n. sp., from phreatic groundwater, Vilâyet Burdur, and the minute Proasellus pamphylicus n. sp. from interstitial waters of the eastern part of Vilâyet Antalya are described. The stygobiont proasellids of Asia Minor, P. lykaonicus and P. pisidicus n. sp. belong to the same phylogenetic strain of Proasellus as those of Transcaucasia,...
Tipo: Article / Letter to the editor
Palavras-chave: Isopoda; Asellus; Proasellus n. sp.; Jaera; Microparasellus sp.; Groundwaters; Taxonomy; Turkey.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/503939

The generic classification of the haplochromine cichlids of Lake Victoria, East Africa
Provedor de dados: 16
Autores: Oijen, M.J.P. van.
In chronologic order of publication, all papers dealing with the systematics of haplochromine cichlids of Lake Victoria are analysed with regard to the generic classification of the species. Taxonomists have disputed and changed the generic classification soon after cichlids from Lake Victoria were first described. At the turn of the century, different opinions among taxonomists working on Lake Victoria haplochromines were mainly based on the fact that they studied different material. The study of more extensive collections yielded the impression that differences between the species are gradual, rendering the delimitation of genera problematic. Recently, an attempt to use cladistic methods for the unravelling of the phylogeny of the haplochromines has...
Tipo: Article / Letter to the editor
Palavras-chave: Cichlidae; Haplochromis; Haplochromine cichlids; Lake Victoria; Generic revision.; 42.81.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/317663

Dicranoloma steenisii (Musci: Dicranaceae), a new species from Papua New Guinea
Provedor de dados: 16
Autores: Klazenga, Niels.
Dicranoloma steenisii, a new species from Papua New Guinea is described here. Diagnostic features include long filiform leaves, a strong costa and absence of a limbidium and a central strand. It seems most closely related to D. armitii, from which it can be separated by the gradually attenuate, not contracted, leaves.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525698

Mycena juniperina, a new member of section Supinae from Norway
Provedor de dados: 16
Autores: Aronsen, A.
Mycena juniperina, collected on bark of Juniperus in southern Norway, is proposed as a new species belonging to section Supinae. It is compared with the other species of the section, from which it is separated on account of the habitat, the pale brown colours of the pileus and the stipe, and some details in the microscopic features.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/531659

Another two new species of Dimeria (Poaceae) from Kerala, India
Provedor de dados: 16
Autores: Ravi, N.
Two new species of Dimeria R. Br. viz., D. copei and D. kalavoorensis are described and illustrated.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525213

Lowiaceae
Provedor de dados: 16
Autores: Larsen, Kai.
A small family, only containing Orchidantha with about 10 species, 6 of which occur in Malesia. The general family part of 5 pages includes a paragraph on phytochemistry of Musaceae sensu lato by R. Hegnauer, and a paragraph on palynology of Lowiaceae by R.W.J.M. van der Ham. The family and species are described and annotated; there is a key to the Malesian species. Illustration is by one photograph and two line drawings.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/532520

Octocorallia from the Bismarck Sea (part 2)
Provedor de dados: 16
Autores: Ofwegen, L.P. van.
A list of species of Alcyonacea from the Bismarck Sea is presented and one new species, Sinularia verseveldti, is described and figured.
Tipo: Article / Letter to the editor
Palavras-chave: Octocorallia; Alcyonacea; Sinularia verseveldti spec. nov.; Bismarck Sea; Papua New Guinea; 42.72.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/319043

Franse aardkastanje [Conopodium majus (Gouan) Loret], vermoedelijk al enkele tientallen jaren inheems in Nederland
Provedor de dados: 16
Autores: Jeurink, Niels; Kneepkens, Manuel (E.) J.; Hertog, André J.
In 1995, Conopodium majus (Gouan) Loret was discovered in the Netherlands, simultaneously at two different localities. One site is located near Gendringen, in the East of the province of Gelderland, the other near Boxtel, in the province of Noord-Brabant. The woodland biotopes correspond with localities from abroad.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526751

Two new species of the genus Ropalidia from New Guinea (Hymenoptera: Vespidae: Polistinae)
Provedor de dados: 16
Autores: Vecht, J. van der; Kojima, J.
Two new species of the genus Ropalidia, R. bidens van der Vecht, spec. nov. and R. clypeata Kojima, spec, nov., which share some characters unique in the genus, are described from New Guinea.
Tipo: Article / Letter to the editor
Palavras-chave: Hymenoptera; New Guinea; Polistinae; Ropalidia; Vespidae; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318285

Revision of Panicum and Whiteochloa in Malesia (Gramineae-Paniceae)
Provedor de dados: 16
Autores: Veldkamp, J.F.
A revision is given for the 25 Malesian representatives of Panicum L. (Gramineae). Whiteochloa C.E. Hubb., a satellite genus, is represented by a single species, and is a new generic record for Malesia.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524815

Breeding systems in Indomalesian spinifex (Paniceae: Gramineae)
Provedor de dados: 16
Autores: Connor, H.E.
Coastal, psammophilous Spinifex littoreus, like other species of Spinifex, is dioecious in Indomalesia, but exceptions to dioecism are found in West Java, the Molucca Islands, and occasionally in the Philippines and northern Borneo. There dioecism has become degraded on the female side to trimonoecism, and sporadically to typical andromonoecism, through restoration of male fertility in some or all flowers. Interpretations of an androdioecious breeding system for Malesian S. littoreus are unsustainable.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524617

Notes on Goodyerinae (Orchidaceae) — I
Provedor de dados: 16
Autores: Schuiteman, A.
Goodyera subregularis (Rchb. f.) Schltr. from New Caledonia and Vanuatu is transferred to Anoectochilus. A non-peloric Anoectochilus, possibly the normal form of A. papuanus (Schltr.) Kittr., is recorded from New Guinea for the first time. Platylepis bombus J.J. Sm. and P. tidorensis J.J. Sm. are transferred to Moerenhoutia. The genus Tubilabium J.J. Sm. is reduced to Myrmechis Blume and the two species of the former are transferred. Cheirostylis quadrilobata Schltr. and C. chalmersii (Schltr.) Schltr. are also transferred to Myrmechis. The genus Myrmechis was not previously recorded from Sulawesi and New Guinea. Papuaea reticulata Schltr. is newly recorded from Irian Jaya; this monotypic genus is here illustrated for the first time. Odontochilus...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524494

Asplenium viride Huds. (Groensteel)
Provedor de dados: 16
Autores: Luijten, Leon.
Asplenium viride was recorded from 3 localities in the Netherlands (1953; 1979-1982; 1983- present). The only extant locality is situated on the wall of a lock in the Province of Groningen. Since its decovery the number of plants has decreased from 14 to 2.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/528138

Review
Provedor de dados: 16
Autores: Kalkman, C.
The book contains 411 colour photographs of as many plant species (all Angiosperms). I estimate that about half of the species covered is not native to Sri Lanka, but introduced and sometimes run wild. That means that the pictures are highly representative for what one meets as a resident or as a visitor, in gardens, along the roads and in waste places. It also means that the book can be profitable in other tropical Asian countries. The arrangement is alphabetical by scientific names, which is of course very easy for those who know the names. It may be felt as a disadvantage by those who try to attach a name to a plant they have found. They will have to go through the entire book. In books like this the arrangement is often by flower colour which makes...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526208

A review of Aidia s.l. (Rubiaceae) in Southeast Asia and Malesia
Provedor de dados: 16
Autores: Ridsdale, C.E.
The present paper reviews the genus Aidia s.l. (including Anomanthodia and Gynopachis) in Southeast Asia and Malesia. Relationships to Pelagodendron are discussed. The taxonomic variation of characters within the genus is reviewed. In this review 16 new species and 2 new varieties are described, and 14 new species combinations are made in Aidia. Aidiopsis orophila and Fagerlindia canthoides are new combinations in the respective genera. A complete index of names is given.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524512

Financial news
Provedor de dados: 16
Autores: NN.
The Government of Indonesia had received a grant of US$7.2 dollars from GEF through the World Bank and this grant was supplemented by US$4.2 million from the Indonesian Government for the biodiversity collections project at Puslitbang Biologi. A similar proposal will be submitted to the World Bank/GEF for a coral reef project. The MacArthur Foundation is being asked to support an ethnobotanical workshop in 1996 covering Indonesia, Philippines, and Malaysia. ITTO support is channeled through the respective countries and requires long term lobbying. The Lae Herbarium had been given a grant for $100,000 per year for 3-years by the MacArthur Foundation to upgrade collections and mount unprocessed specimens.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/533331

Books received by the Rijksherbarium library
Provedor de dados: 16
Autores: NN.
As a follow-up of the well-known ‘Standaardlijst van Nederlandse paddestoelen’ (Arnolds, 1984), a new book has been edited by Arnolds, Kuyper &amp; Noordeloos, entitled ‘Overzicht van de paddestoelen in Nederland’ (Survey of the Macromycetes of the Netherlands). It is written in Dutch language with an extensive English summary. The book contains, after six introductory chapters, a taxonomic survey of 3,488 species recorded from the Netherlands. The genera were treated by a total of 24 professional and amateur mycologists. For each species the following data are given: accepted scientific name with numerical code; vernacular name; selected literature; data on distribution and ecology in the Netherlands; position on preliminary Red List of endangered...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/532021

A new species of Willughbeia (Apocynaceae: Plumerioideae) from Borneo
Provedor de dados: 16
Autores: Middleton, David J.
The new species Willughbeia lunduensis D.J. Middleton is described.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525324

Species of Schizotricha Allman, 1883 (Cnidaria, Hydrozoa) from recent antarctic expeditions with R.V. 'Polarstern', with the description of a new species
Provedor de dados: 16
Autores: Peña Cantero, A.L.; Svoboda, A.; Vervoort, W.
Five species of the genus Schizotricha Allman, 1883, one of which is new to science, have been studied. The material originates from the Weddell Sea region and from off Elephant Island and it was collected during several antarctic expeditions with the R.V. Tolarstern'. Each species is described and figured and its systematic position among allied species discussed. The type material of Schizotricha glacialis (Hickson &amp; Gravely, 1907) and S. turqueti Billard, 1906 has been re-examined and is also described and figured.
Tipo: Article / Letter to the editor
Palavras-chave: Cnidaria; Hydrozoa; Hydroids; Schizotricha; Antarctic; Re-description of species; New records; New species; 42.72.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318738

Veranderingen in de flora van het laagveen natuurreservaat De Wieden
Provedor de dados: 16
Autores: Vreeken, Bart; Meyer-Janse, Silvia; Douwes, Roel.
In 1994 and 1995 a remapping of 80 plant species of interest has been carried out in the marsh and fen nature reserve De Wieden (province of Overijssel). Species were mapped in a grid of 100m by 100m squares. Their occurrence and distribution were compared to those of the preceding mapping, which took place in 1982 and 1983. A number of marsh species ( Calla palustris, Hottonia palustris, Myriophyllum verticillatum, Ranunculus lingua and Stratiotes aloides) have increased, possibly due to a different management of the ditches. The Berne-Convention species Liparis loeselii was found in 104 (against 41) plots, probably a real increase. Within quagfens, Carex pulicaris, Cladium mariscus, Dactylorhiza incarnata and Scorpidium scorpioides have decreased....
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/527440

Kamferalant [Dittrichia graveolens (L.) W. Greuter] in Nederland
Provedor de dados: 16
Autores: Stolwijk, Pieter F.
Dittrichia graveolens was found as a casual three times in 1994 in the Netherlands. Since in some regions of Germany the species is already firmly established, it may become so in the Netherlands.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/528110

Canalirogas, a new genus of the subfamily Rogadinae Foerster (Hymenoptera: Braconidae) from the Indo-Australian region
Provedor de dados: 16
Autores: Achterberg, C. van; Chen, X.
A new genus of the tribe Rogadini Foerster (Braconidae: Rogadinae), Canalirogas (type species: Canalirogas balgooyi spec, nov.) from Indonesia (Sumatra, Bali, Sulawesi, Sula Islands, Halmahera, Irian Jaya), Malaysia (West Malaysia, East Malaysia (Sabah)), and China is described and illustrated. A key to the species of the new genus is added.
Tipo: Article / Letter to the editor
Palavras-chave: Hymenoptera; Braconidae; Rogadinae; Rogadini; Canalirogas; Oriental; Wallacea; Papuan; Key; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318905

Reviews
Provedor de dados: 16
Autores: Adema, Frits; Nooteboom, H.P.
The present volume is the first of two dealing with the Proteales. This volume describes the family Elaeagnaceae (pp. 1-3) and Proteaceae 1. The remainder of the Proteaceae will be described in volume 17. The major part of the present volume (pp. 4-522) is devoted to the first part of the description of the Proteaceae. It includes a family description and chapters on affinities, morphological features, fossils, pollinators and uses, furthermore a key to all genera in Australia and descriptions of these genera except Banksia, Dryandra, Grevillea, and Hakea.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525982

Higher classification of the South-American Gomphidae (Odonata)
Provedor de dados: 16
Autores: Belle, J.
The adults and larvae of the South-American Gomphidae are classified. Keys to the subfamilies and tribes are constructed followed by tribal descriptions and descriptive notes. The existing classification is revised as follows: - Octogomphinae comb. nov.: Hemigomphini (Neogomphus, Praeviogomphus), Anomalophlebiini trib. nov. (Anomalophlebia); - Onychogomphinae: Onychogomphini (Erpetogomphus); - Epigomphinae: Archaeogomphini (Archaeogomphus), Agriogomphini trib. nov. (Agriogomphus, Brasiliogomphus, Ebegomphus), Cyanogomphini comb. nov. (Cyanogomphus, Tibiagomphus), Epigomphini (Epigomphus); - Ictinogomphinae comb. nov.: Ictinogomphini comb. nov. (Cacoides, Melanocacus); Zonophorinae: Zonophorini (Mitragomphus, Zonophora); - Gomphoidinae comb. nov.: Aphyllini...
Tipo: Article / Letter to the editor
Palavras-chave: Gomphidae; Classification; South America; 42.75.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/318464

Scientific news
Provedor de dados: 16
Autores: NN.
Getting there — Various methods to access canopies are described in Selbyana 16 (1995). Ashton et al. explain a tackle and boom method used for the phenology of Shorea flowering in Malesia. Note the rather funny sketch. Dorrington sketches lighter-than-air powered balloons with which canopies can be explored. Donahue &amp; Wood describe and depict a climbing technique practiced by rock climbers and cave explorers, including equipment lists. Lowman &amp; Bouricus discuss the construction, equipment, and costs of platforms and bridges for durable access. In the latter’s literature list the following reference seems of interest to incipient arborists: Moffett, M. &amp; M.D. Lowman. 1995. Methods of access into forest canopies in M.D. Lowman &amp; N. Nadkami...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/533366

Galerina beatricis, a new species in Agaricales
Provedor de dados: 16
Autores: Bas, C.
In 1965 the late Mr. J. Daams, an ardent and acute fungus collector, discovered in a greenhouse at ’s Graveland, the Netherlands, a baffling small agaric with a very dark red-brown pileus, dark brown (sub)decurrent lamellae, a whitish veil partly covering pileus and stipe and a bitter to even acrid taste. The microscopic characters soon revealed that a rather aberrant species of Galerina was involved. In later years this species has been repeatedly found in greenhouses, but also outdoors in orchards, in the same region, always on compost or blackish soil, but after 1971 it has not been recorded again. A recent scanning of the literature on Galerina has shown that none of the nearly 300 species of this genus recognized in the world combines the characters...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526121

New combinations under Hoya verticillata (Asclepoadaceae) and a bibliographical note on sperlingia
Provedor de dados: 16
Autores: Veldkamp, J.F.; Hansen, B.
Two new varietal combinations are proposed under Hoya verticillata (Vahl) G. Don (Asclepiadaceae). The reason for the delay in the publication of Sperlingia Vahl is outlined.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524724

Recente binnenlandse verspreiding van Cochlearia danica L
Provedor de dados: 16
Autores: Zonderwijk, Maarten; Groen, Kees (C.) L.G.
From 1970 onwards, Cochlearia danica has spread considerably along motorways in the Netherlands. Similar observations have been made in surrounding countries. The increase of the species is presumably caused by a change in road management, leading to an increase of de-icing salts during winter. The settlement of Cochlearia danica along a section of a motorway has been studied. It appears that the first settlements usually occur near intersections and viaducts; in the following years the species spreads massively along the road sections in between, nearly exclusively on the central reservation. The abundance of the species is highest in the centre strips; the soil permeability is relatively small here, so that the salt is not leached out by rainwater.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526843

Genetisch onderzoek aan de zandhagedis Lacerta agilis: resultaten en implicaties voor beheer
Provedor de dados: 16
Autores: Nijman, Vincent.
Dit rapport geeft een overzicht van de resultaten van onderzoek naar genetische variabiliteit in de zandhagedis Lacerta agilis, uitgevoerd in de periode 1993-1995 op het Instituut voor Systematiek en Populatiebiologie, Universiteit van Amsterdam. In totaal zijn van 83 individuen uit acht locaties (zes duingebieden en twee heidegebieden in zuidoost Nederland) weefselmonsters genomen op een non-destructieve manier. Met behulp van elektroforese is de variatie in 23 enzymen zichtbaar gemaakt. De gemiddelde heterozygotie per individu ligt tussen de 0.041 en 0.049. Dit is in overeenstemming met eerder gevonden waarden binnen het genus Lacerta en deze waarde geeft geen aanleiding te veronderstellen dat de bemonsterde zandhagedispopulaties door een genetische...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/506343

Ecua, a new genus op Apocynaceae from Malesia
Provedor de dados: 16
Autores: Middleton, David J.
Whilst examining the specimens of Apocynaceae in Herbarium Bogoriense I came upon two unknown specimens which appeared to be species of Parsonsia. On further examination they turned out to belong to a new genus related to Parsonsia but differing from it in the stamens which are included within the corolla tube and the shape of the corolla, filaments and anthers. This is the second new genus recently discovered in Malesia, the first being Baharuia D.J. Middleton described from plants collected in Borneo and Sumatra. The name of the genus is a somewhat tongue-in-cheek reference to the funding for my work on Malesian Apocynaceae, the European Currency Unit or ECU. The genus was launched during the opening of the Van Steenis Building by Her Majesty Queen...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526072

The jacoona assemblage of the genus Dundubia Amyot &amp; Serville (Homoptera: Cicadidae): a taxonomic study of its species and a discussion of its phylogenetic relationships
Provedor de dados: 16
Autores: Beuk, Paul L.Th.
The species of Orientopsaltria with unicolorous opercula and three related species of Platylomia are transferred to the genus Dundubia and allocated in the ‘Dundubia jacoona assemblage’ pending further investigation. The assemblage comprises eleven species in total; all are found in the Indo-Malaysian Archipelago, Indo-China, and the adjoining parts of China and India. The four species which were until now placed in Orientopsaltria are D. feae (Distant, 1892), D. jacoona (Distant, 1888), D. nigripes (Moulton, 1923), and D. oopaga (Distant, 1881). The three species transferred from Platylomia are D. hainanensis (Distant, 1901), D. nagarasingna Distant, 1881, and D. spiculata Noualhier, 1896. These seven species are all redescribed. Four species are...
Tipo: Article / Letter to the editor
Palavras-chave: Cicadidae; Dundubia; Jacoona assemblage; Taxonomy; New species; Phylogeny.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504432

Notes on taxonomy and pollen of Malesian Daphniphyllum (Daphniphyllaceae)
Provedor de dados: 16
Autores: Huang, Tseng-Chieng.
This paper is a precursor to the revision of the family Daphniphyllaceae in Flora Malesiana, in which 16 species of the genus Daphniphyllum will be treated. In the present paper a description is given of one new variety, D. gracile Gage var. newirelandum, and five new combinations have been made, D. ceramense, D. dichotomum, D. papuanum Hallier f. var. tuberculatum, D. sumatraense, and D. timorianum. An enumeration of the 16 species as will be treated in Flora Malesiana is given here; the numbering of the new variety and the five new combinations in the present paper is the same as will be used in Flora Malesiana. A key to sections, subsections and series is given. Pollen features, a distribution map of the two sections, and a line drawing of the new...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/524966

Zur intraspezifischen Lautkommunikation des Russischen Desmans Desmana moschata (Linnaeus, 1758) (Insectivora: Talpidae: Desmaninae) nebst einigen Angaben zu seinem Sozialverhalten
Provedor de dados: 16
Autores: Romanow, Peter; Poduschka, Walter; Deutsch, Werner.
The Russian Desman Desmana moschata (Linnaeus, 1758) is a highly endangered semiaquatic mammal, confined to disjunct areas. Between 1983 and 1992 several specimens were kept and investigated, firstly in the zoological garden of Moscow (4 ♀ ♀, 1 ♂), and afterwards in the field station of the former Soviet-Russian Academy of Sciences at Cernogolovka (1 ♀, 4 ♂ ♂). Parallel to this, numerous extended field trips to the huge wetlands of the Oka Reserve allowed the verification of the results obtained in captivity. An unexpectedly rich repertoire of acoustic signals was recorded and transferred to sonagrams in Vienna/Austria. After tentative interpretation, the acoustic signals were correlated with simultaneous behaviour patterns. Not only the essential...
Tipo: Article / Letter to the editor
Palavras-chave: Russian Desman; Desmana moschata; Acoustic communication; Sonagrams; Oka Reserve; Female dominance; Restricted social tolerance.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/504222

Viridotheres marionae, a new genus and species of pinnotherid crab from West Africa (Crustacea: Decapoda: Brachyura)
Provedor de dados: 16
Autores: Manning, R.B.
The new genus Viridotheres is recognized for three West African species that share an elongate, spatulate propodus and a short, styliform dactylus inserted near its midlength on the third maxilliped as well as an elongate dactylus on the second walking leg.
Tipo: Article / Letter to the editor
Palavras-chave: Decapoda; Brachyura; Pinnotheridae; Commensal; Cardium; Viridotheres; Cape Verde Islands; 42.74.
Ano: 1996
URL: http://www.repository.naturalis.nl/record/319108

Recente veranderingen in de Nederlandse Zeewierflora II. Additionele soorten bruinwieren (Phaeophyta) in de genera Botrytella en Feldmannia (Ectocarpaceae), Leptonematella (Elachistaceae) en Stictyosiphon (Striariaceae)
Provedor de dados: 16
Autores: Stegenga, Herre; Mol, Ivo.
First records for the Netherlands are reported of the brown algae Botrytella reinboldii, Feldmannia globifera, Leptomatella fasciculata and Stictyosiphon soriferus; morphological descriptions and illustrations are given. Previously reported Dutch material of Sorocarpus micromorus has been reidentified, and is probably identical with Pacific species known as Ectocarpus sorocarpoides or Sorocarpus pacifica.
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526457

Opgave van vindplaatsen van bedreigde akkeronkruiden
Provedor de dados: 16
Autores: NN.
Voor het opstellen van een Beschermingsplan Akker(on)kruiden door het Informatieen KennisCentrum natuurbeheer, zullen ook dit jaar verschillende akkerreservaten bezocht worden. Om een eventuele verschuiving of uitbreiding van het akkerreservaat-areaal goed te kunnen onderbouwen is het nodig ook groeiplaatsen van de betreffende soorten buiten de reservaten te kennen. Uw medewerking wordt gevraagd voorde opgave van vindplaatsen van de volgende soorten: Agrostemma githago Ajuga chamaepitys Arnoseris minima Bromus secalinus Buglossoides arvensis Chenopodium murale C. hybridum C. vulvaria Consolida regalis Euphorbia stricta E. platyphyllos E. exigua Gagea villosa Galeopsis ladanum s.l. Galium tricornutum Holosteum umbellatum Hypochaeris glabra Kickxia elatine...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/526679

Entoloma reginae (Basidiomycetes, Agaricales), a new species from the Netherlands
Provedor de dados: 16
Autores: Noordeloos, Machiel E.
The knowledge of the macrofungi (mushrooms and toadstools) in Europe, including the Netherlands, is still far from complete. During our studies on this group of organisms in the Netherlands and adjacent Belgium and Germany while preparing a critical identification work, the Flora agaricina neerlandica, a fairly large number of new species has been discovered, and a lot more has become known on the variability, distribution and ecology of the about 2,000 other species that will eventually be included in this Flora. In the period 1987-1996 four volumes have been completed of this standard work (Bas et al., 1988, 1990,1995,1996), three are in preparation, and we hope that early in the twenty-first century, the set of 10 volumes will be finished. The present...
Tipo: Article / Letter to the editor
Ano: 1996
URL: http://www.repository.naturalis.nl/record/525303

Growth Characteristics of Tetrahymena paravorax
Provedor de dados: 19
Autores: Suzuki, Kazu-michi; Suizu, Futoshi; Takahashi, Tadao; Kosaka, Toshikazu; Hosoya, Hiroshi.
Palavras-chave: Axenic culture; Cell growth; Growth factor; Initial cell density; Tetrahymena paravorax.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/251

貯蔵馬鈴薯より調製したデンプンの物理化学特性
Provedor de dados: 19
Autores: 石橋, 憲一.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/560

The Differences Among Lines on Oviduct and Cumulative Follicle Weight in Laying Hens
Provedor de dados: 19
Autores: 三好, 俊三; 高橋, 洋明; ルック, キィウ　ミン; 口田, 圭吾; 光本, 孝次.
Palavras-chave: 卵管; 膨大部; 卵巣; 黄色卵胞; 採卵鶏; Oviduct; Magnum; Ovary; Follicle; Laying hen.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/444

Transferrin as a Drug Carrier in African Trypanosomes
Provedor de dados: 19
Autores: Grab, Dennis J.; Hirumi, Hiroyuki.
Palavras-chave: Paraquat; Isometamedium chloride; Samorin; Transferrin; Trypanosoma conglense; Trypanosoma brucei.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/249

Gene delivery into plant cells and magnetic separation using magnetite particles
Provedor de dados: 19
Autores: Yoshizumi, Takeshi; Horikawa, Yoh; Kakuta, Hideo; 吉積, 毅; 堀川, 洋; 角田, 英男.
Palavras-chave: Β-glucruronidase (GUS) gene; Magnetite; Magnetic separation; Particle bombardment; Transient gene expression; 一過的遺伝子発現; 磁気分離; 磁性体; 微粒子撃ち込み; Β-グルクロニダーゼ(GUS)遺伝子.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1343

Effects of phytotoxic metabolites from Verticillium dahliae and ouabain on tissues and callus cultures from susceptible and resistant cultivars of tomato
Provedor de dados: 19
Autores: Murakami, Takanori; Koike, Masanori; Shimada, Tohru; 村上, 隆紀; 小池, 正徳; 嶋田, 徹.
Palavras-chave: Tomato; Verticillium dahliae; トマト.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1345

Growth-Inhibitory Activites in Tetrahymena Culture Medium of the Stationary Phase
Provedor de dados: 19
Autores: Suzuki, Kazu-michi; Nishihara, Naohisa; Takahashi, Tadao; Kosaka, Toshikazu; Hosoya, Hiroshi.
Palavras-chave: Cell growth; Growth inhibition; PH; Stationary phase; Tetrahymena.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/248

貯蔵馬鈴薯の内部損傷の変化
Provedor de dados: 19
Autores: Hironaka, Kazunori; Ishibashi, Ken-ichi; Ono, Kouzi.
Palavras-chave: Nourin-ichigo potatoes; Storage; Bruise susceptibility; Penetration force; 農林1号; 貯蔵; 内部損傷; 貫入力.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1349

羊初乳中に含まれる繊維芽細胞成長因子（FGF)の分離・精製
Provedor de dados: 19
Autores: 中村, 正.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/561

半乾燥地帯における草地の利用形態に関する調査
Provedor de dados: 19
Autores: 花田, 正明.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/564

青果物流通と青果物卸売市場の効率に関する研究
Provedor de dados: 19
Autores: 金山, 紀久.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/557

Characterization of Symbiotic Algae-free Strains of Paramecium bursaria Produced by the Herbicide Paraquat
Provedor de dados: 19
Autores: Nishihara, Naohisa; Takahashi, Tadao; Kosaka, Toshikazu; Hosoya, Hiroshi.
Palavras-chave: Paraquat; Algae-free paramecia; Paramecium bursaria; Endosymbiosis; Chlorella sp.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/247

サハリン中・南部の鳥類
Provedor de dados: 19
Autores: 藤巻, 裕蔵; 松尾, 武芳; Nechaev, Vitalii A.; Fujimaki, Yuzo; Matsuo, Takeyoshi.
Palavras-chave: サハリン; 鳥相; 鳥類; 繁殖期.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2174

Cryptosporidial Infection of Pigs at The Intensive Breeding
Provedor de dados: 19
Autores: Pavlović, Ivan; Ivetic, Vojin; Erski-Biljic, Milanka; Milutinovic, Marija; Kulišić, Zoran.
Palavras-chave: Cryptosporidium parvum; Pigs; Neonatal diarrhea; Cryptosporidiosis.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/241

Development of  a Body Dimension Measurement Method for Dairy Cattle by Computer Image Analysis with Video Camera
Provedor de dados: 19
Autores: Kuchida, Keigo; Hamaya, Shino; Saito, Yusuke; Suzuki, Mitsuyoshi; Miyoshi, Syunzo; 口田, 圭吾; 蛤谷, 志乃; 斎藤, 祐介; 鈴木, 三義; 三好, 俊三.
Palavras-chave: Image analysis; Body dimension measurement; Rectangular pipe frame.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/707

Production of Transgenic Mice Carrying p30 Gene Encoding Major Surface Antigen of Toxoplasma gondii
Provedor de dados: 19
Autores: Seng, Seyha; Maki, Yoshiyuki; Yokoyama, Minesuke; Inoue, Noboru; Igarashi, Ikuo; Nagasawa, Hideyuki; Horiuchi, Motohiro; Omata, Yoshitaka; Saito, Atsushi; Suzuki, Naoyoshi; Toyoda, Yutaka; 井上, 昇; 五十嵐, 郁男; 長澤, 秀行.
Palavras-chave: Toxoplasma gondii; SAG-1 (p30); Transgenic mice.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/254

廐肥・堆肥の土壌への添加・培養に伴う低分子脂肪族カルボン酸の量と組成の変動
Provedor de dados: 19
Autores: 谷, 昌幸.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/559

農村生活環境の整備と管理における費用負担方式の制度化に関する研究
Provedor de dados: 19
Autores: 佐々木, 市夫.
平成7年度科学研究費補助金 (一般研究(C)) 研究成果報告書06660270
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/783

The Pathogenic Effects of a UK Field Isolate of Eimeria acervulina in Modern Broiler and Layer Chickens
Provedor de dados: 19
Autores: Marshall, R. N.; Taylor, M. A.; Green, J. A.; Bellworthy, S. J.; Catchpole, J.
Palavras-chave: Histopathological examination; AST; TMT; TMTR.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/252

Preliminary Survey on Horse Serum Indirect Fluorescence Antibody Titers in Japan against Babesia equi and Babesia caballi (Onderstepoort strain) Antigen
Provedor de dados: 19
Autores: Suzuki, Naoyoshi; Igarashi, Ikuo; Abgaandorjiin, A.; Waal, D. T. De; Nagasawa, Hideyuki; Omata, Yoshitaka; Saito, Atsushi; Oyamada, Takashi.
Palavras-chave: Babesia caballi; Babesia equi; Sera diagnosis; IFAT; Survey.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/243

Comparison of the Clutch Traits and Egg Production Predicted by the Multiphasic Model Among the Laying Strains
Provedor de dados: 19
Autores: Luc, Kieu Minh; Miyoshi, Syunzou; Kuchida, Keigo; Mitsumoto, Takatsugu.
Palavras-chave: Clutch traits; Egg production prediction; Multiphasic model; Laying hen.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/451

多年生雑草シバムギの栄養繁殖特性
Provedor de dados: 19
Autores: 本江, 昭夫.
http://www.nou-gi.or.jp/mokuji.html
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3137

Morphological features of polyploidy populations of Astragalus adsurgens PALL. collected from the Loess Plateau in China and Hokkaido in Japan
Provedor de dados: 19
Autores: Hongo, Akio; Kita, Fumiji; Iwashita, kunihiro; Kudho, Makiko; 本江, 昭夫; 喜多, 富美治; 岩下, 有宏; 工藤, 麻紀子.
Palavras-chave: Astragalus adsurgens; Loess Plateau; Morphology; Polyploid; ムラサキモメンズル; 黄土高原; 形態; 倍数体.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1357

Causes of wild bird mortality in eastern Hokkaido II
Provedor de dados: 19
Autores: 柳川, 久; 澁谷, 辰生; Yanagawa, Hisashi; Shibuya, Tatsuo.
Palavras-chave: 鳥類; 死因; 人工物への衝突; 交通事故; 北海道東部.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1402

ゲーテの『若きヴェルターの悩み』における語り手としてのヴェルター(1) : 語りの基本構造
Provedor de dados: 19
Autores: 松村, 広美.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2843

生菌製剤投与によるラットの脂質代謝
Provedor de dados: 19
Autores: 福島, 道広; 中野, 益男; FUKUSHIMA, Michihiro; NAKANO, Masuo.
Palavras-chave: ラット; 生菌製剤; 腸内細菌叢; コレステロール; 胆汁酸; Rat; Probiotic; Faecal microflora; Cholesterol; Bile acid.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1347

聖徳太子も食べていた!?牛乳からつくる幻の滋養薬「酥」「醍醐」の復元・賞味レポート
Provedor de dados: 19
Autores: 有賀, 秀子.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1855

ビデオカメラを用いたコンピュータ画像解析による牛体尺測定法の開発
Provedor de dados: 19
Autores: 口田, 圭吾; 鈴木, 三義; 三好, 俊三.
養賢堂．畜産の研究 50(11) 1207-1211頁 1996年より転載 　
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2306

Hepatic Oxidative Stress and Antioxidant Defenses During Chloroquine-Resistant and Sensitive Plasmodium berghei Infecton in Mice
Provedor de dados: 19
Autores: Srivastava, Pratima; Pandey, Vikaash C.
Palavras-chave: Malaria; Plasmodium berghei; Chloroquine-resistant; Chloroquine-sensitive; Oxidative damage; Superoxide scavenging system.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/245

Allelic Analysis of Immunodominant Major Piroplasm Surface Protein Genes of Benign Theileria Parasites in Australian Cattle
Provedor de dados: 19
Autores: Kubota, Shuichi; Kakuda, Tsutomu; Sugimoto, Chihiro; Waltisbuhl, David; Onuma, Misao.
Palavras-chave: Allele; Benign Theileria; Piroplasm surface antigen; Polymerase chain reaction.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/240

動学的最適化理論の生態学への応用
Provedor de dados: 19
Autores: 楠田, 尚史.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/563

Expressions of Gamma-interferon and Interleukin-4 Messenger RNA in Splenic L3T4+ T Cells from Babesia microti- and B. rodhaini- Infected Mice
Provedor de dados: 19
Autores: Shimada, Terumasa; Shikano, Sojin; Hashiguchi, Rie; Ohashi, Fumihito; Matsuki, Naoaki; Ono, Kenichiro.
Palavras-chave: Babesia microti; Babesia rodhaini; Splenic helper T cell subset.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/242

ラット後躯自己血液潅流標本における血管拡張反応の薬理学的特性
Provedor de dados: 19
Autores: Nishimura, Masakazu; Su, Che; Lee, Tony J.-F.
Palavras-chave: Neurogenic vasodilation; Rat; Hindquarters; Antihistaminics; Cocaine.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1355

タイ稲作農民のポンプ灌漑農法と収益性
Provedor de dados: 19
Autores: 耕野, 拓一; Kono, Hiroichi.
Palavras-chave: ポンプ灌漑; 直播法; 小作農.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1395

分子マーカーによるコムギ5A染色体の連鎖分析
Provedor de dados: 19
Autores: 加藤, 清明.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/558

「池底の泥土」の意味するもの
Provedor de dados: 19
Autores: 石川, 百合; Ishikawa, Yuli.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1953

青年たちの「環境」等へのイメージについて
Provedor de dados: 19
Autores: 中原, 淳一; NAKAHARA, Jun-ichi.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1954

北海道中部・南東部におけるカワラヒワとマヒワの生息状況
Provedor de dados: 19
Autores: 藤巻, 裕蔵; FUJIMAKI, Yuzo.
Palavras-chave: Carduelis; カワラヒワ; マヒワ; 北海道; 分布; Carduelis; Oriental Greenfinch; Siskin; Hokkaido; Distribution.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1350

採卵鶏の体重変化に対する非線形モデルの適用ならびに成長形質と卵形質との関連性について
Provedor de dados: 19
Autores: 口田, 圭吾.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/555

産業動物総合画像診断車の開発とその概要
Provedor de dados: 19
Autores: 宮原, 和郎; 佐藤, 基佳; 広瀬, 恒夫; MIYAHARA, Kazuro.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/4080

Selection for High and Low Yolk-Albumen Ratio in Chickens V. Effects of Selection and Relaxation on Egg Component Traits
Provedor de dados: 19
Autores: Miyoshi, Syunzou; Luc, Kieu Minh; Kuchida, Keigo; Mitsumoto, Takatsugu; 三好, 俊三; ルック, キィウ　ミン; 口田, 圭吾; 光本, 高次.
Palavras-chave: Yolk-albumen ratio; Egg components; Divergenl selection; Relaxed selection; 卵黄; 卵白比; 鶏卵構成; 分枝選抜; 選抜緩和.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/452

十勝平野に分布する後期更新世古土壌の植物珪酸体群衆と古環境
Provedor de dados: 19
Autores: 近藤, 錬三; 筒木, 潔; KONDO, Renzo; TSUTSUKI, Kiyoshi.
Palavras-chave: 植物珪酸体; 古土壌; 後期更新世堆積物; 古環境; テフラ; Opal phytoliths; Paleosols Latepleiocene deposits; Paleoenvironment; Tephra.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1353

搾乳システムの洗浄と殺菌
Provedor de dados: 19
Autores: 有賀, 秀子.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1845

In vitro におけるジャガイモ半身萎ちょう病抵抗性の評価
Provedor de dados: 19
Autores: Koike, Masanori; Kozawa, Tohru; Okino, Kaori; Nagao, Hideyuki; Shimada, Tohru; 小池, 正徳; 小沢, 徹; 沖野, 香織; 長尾, 英幸; 嶋田, 徹.
Palavras-chave: Potato; Verticillium albo-atrum; ジャガイモ.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1342

鶏卵の構成形質の加齢に伴う推移
Provedor de dados: 19
Autores: 三好, 俊三; 佐藤, 美穂; 松村, 幹了; ルック, キィウ　ミン; 光本, 孝次; MIYOSHI, Shunzo; SATO, Miho; MATSUMURA, Mikinori; LUC, Kieu Minh; KUCHIDA, Keigo; MITSUMOTO, Takatsugu.
Palavras-chave: 採卵鶏; 卵構成; 加齢.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1356

階層型ニューラルネットワークによる地域気象の内部表現
Provedor de dados: 19
Autores: 前多, 修二; MAEDA, Shuji.
Palavras-chave: 地域気象; 衛星雲画像; 3層ニューラルネットワーク; 内部表現; クラスタリング.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1358

Application of Non-linear Models to Egg Production Curves in Chickens
Provedor de dados: 19
Autores: Miyoshi, Syunzou; Luc, Kieu Minh; Kuchida, Keigo; Takatsugu, Mitsumoto.
Palavras-chave: Egg production patterns; Non linear models; Laying hen.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/448

Heritability Estimates of Some Clutch Traits in the Laying Hen
Provedor de dados: 19
Autores: Luc, Kieu Minh; Miyoshi, Syunzou; Suzuki, Mitsuyoshi; Mitsumoto, Takatsugu.
Palavras-chave: Clutch traits; Multiphasic model; Laying hen; Heritability.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/450

大岡昇平における歴史（五）
Provedor de dados: 19
Autores: 柴口, 順一; SHIBAGUCHI, Jun’ichi.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1955

酪農生産の環境負荷と経済的政策手段に関する研究
Provedor de dados: 19
Autores: 佐々木, 市夫.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/556

第7回アジア・オセアニア生化学・分子生物学シンポジウムに参加して
Provedor de dados: 19
Autores: 浦島, 匡.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/565

日本文学における自伝の研究 : 大岡昇平を中心に
Provedor de dados: 19
Autores: 柴口, 順一; SHIBAGUCHI, Jun’ichi.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/562

Grassland utilization in Himalayas
Provedor de dados: 19
Autores: 本江, 昭夫; HONGO, Akio.
In the Himalayas, domesticated yak is fed at an altitudinal range of 3,000 to 5,000m. Below this zone, the cow is more common. Hybrids are fed at an intermediate zone. In order to analyze the genetic basis of milk protein variation, milk samples were taken from the nak (female yak), cow and their hybrid. By principle component analysis, yak and a highland type of cow (kirmcome) were clearly distinguished from midland (shakzam) and lowland (palang) cows. Local Sherpa people may produce suitable animals for each zone by controlling animal reproduction systems. Generally speaking, a sustainable stocking rate is two adult animals per hectare in the central Himalayas. However, most pastures were overgrazed 3 to 10 times more than this level. The feedstuff...
Palavras-chave: Cow; Fodder tree; Hybrid; Stocking rate; Yak; ウシ; 飼料木; 雑種; 放牧圧; ヤク.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3006

Seasonal Patterns of Malaria Morbidity in Two High Altitude Sites in Kakamega District, Western Kenya
Provedor de dados: 19
Autores: Shililu, J. I.; Maier, W. A.; Seitz, H. M.; Orago, A. S.
Palavras-chave: Plasmodium falciparum; Infection rates; Parasite densities; Gametocyte rates; Altitude.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/244

Ultrastructural Study of Developmental Stages of  Eimeria procera in Partridges (Perdix perdix)
Provedor de dados: 19
Autores: Goldová, Maria; Letkova, V.; Csizsmarova, G.; Kolodzieyzski, L.
Palavras-chave: Coccidiosis; Transmission clectron microscopy; Bird; Chicken.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/246

Sequence Analysis of Three Major Antigens (P30, P23 and P22) of Virulent and Avirulent Strains of Toxoplasma gondii
Provedor de dados: 19
Autores: Maki, Yoshiyuki; Seng, Seyha; Kato, Mihoko; Hoshi, Yukihiro; Igarashi, Ikuo; Nagasawa, Hideyuki; Toyoda, Yutaka; Suzuki, Naoyoshi.
Palavras-chave: Toxoplasma gondii; SAG-1 (P30); CDNA.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/250

人間開発と女性の開発参加
Provedor de dados: 19
Autores: 増田, 萬孝; Masuda, Yositaka.
Palavras-chave: 人間開発指数; ジェンダー; リプロダクティブ・ヘルス/ライツ; エンパワーメント.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1376

Diagnostic Methods for the Detection of Cryptosporidium parvum Oocysts in Faeces
Provedor de dados: 19
Autores: Webster, K. A.; Green, J. A.; Dawson, C.; Giles, M.; Catchpole, J.
Palavras-chave: Cryptosporidium parvum; Diagnosis; Immunofluorescence; ELISA; Coproscopical.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/253

The Vegetational Change in the Suiren-Numa Mire during the Last Half Century Caused by Human Disturbances
Provedor de dados: 19
Autores: Sato, Masatoshi; Miura, Osamu.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/701

Fujimaki et al. "Breeding biology of the stonechat in southeastern Hokkaido, Japan"に関する一考察I : ふ化率決定要因のモデル
Provedor de dados: 19
Autores: 楠田, 尚史; KUSUDA, Hisafumi.
Palavras-chave: ノビタキ; 繁殖生態; ふ化率; 二項分布; Stonechat; Breeding biology; Hatching rate; Binomial distribution.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1351

The Pathogenesis of Experimental Infections of Cryptosporidium baileyi in Chickens
Provedor de dados: 19
Autores: Taylor, M. A.; Catchpole, J.; Marshall, R. N.; Green, J. A.
Palavras-chave: Cryptosporidiosis; Bursa of Fabricius; Histology.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/239

Growth of conifers planted in Commemorative Forest of Obihiro-no-mori
Provedor de dados: 19
Autores: 紺野, 康夫; 平工, 哲夫; Konno, Yasuo; Hiraku, Tetsuo.
Palavras-chave: 帯広の森; ふるさとの森; 都市公園; 自然環境復元; 針葉樹.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1401

Influences of medium and seed age on callus formation from mature embryos of wild rice （Zizania palustris L.)
Provedor de dados: 19
Autores: 村山, 廉生; 三浦, 秀穂; MURAYAMA, Yasuo; MIURA, Hideho.
Palavras-chave: 遺伝子源; カルス誘導; 胚培養; ワイルドライス; Gene resource; Callus formation; Embryo culture; Wild rice.
Ano: 1996
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1338

IODE Handboek
Provedor de dados: 20
Supported by IOC/IODE
Tipo: Report
Palavras-chave: Oceanography.
Ano: 1996
URL: http://hdl.handle.net/1834/1796

Culturing Coral for Management
Provedor de dados: 20
Autores: Franklin, H.; Muhando, C. A.
Anthropogenic pressures on the coral reefs of Tanzania are high. Over-exploitation, destructive fishing practices, unplanned tourism and high sedimentation load are amongst the most evident contributing factors whilst the poor economy and increased human population density along the coast is an underlying problem. There is a clear need for alternative sources of livelihood and effective ways to manage coral reef resources sustainably. Mariculture is becoming a common component in coastal zone management in Tanzania.
Tipo: Report
Palavras-chave: Coral reefs.
Ano: 1996
URL: http://hdl.handle.net/1834/992

The coastal zone and oceanic problems of Sub-Saharan Africa
Provedor de dados: 20
Autores: Ibe, A.C.
The coastal zone and oceans surrounding Sub-Saharan Africa, with their vast resources of food, energy, and minerals, not only are composed of various fragile ecosystems, but are scenes of a variety of often conflicting uses. At present, the uncontrolled development of the coastal zone and ocean and the almost haphazard exploitation of their natural resources threaten to turn the promise of economic prosperity into an environmental nightmare that portends great dangers for present and future generations. There is the urgent need to put in place national management policies that address the environmental controls and procedures to be applied in pursuit of economic development. However, the oceans have no physical boundaries corresponding to national...
Tipo: Book Section
Palavras-chave: Coastal zone; Environment management.
Ano: 1996
URL: http://hdl.handle.net/1834/273

Distribución y abundancia de los recursos demersales en la plataforma continental del Ecuador durante octubre de 1995
Provedor de dados: 20
Autores: Revelo, W.
The demersal phase (from 18th to November 01th, 1995) of cruise T95/10/04 DO, covered an area of 15632,6 km2 between 00º36'0”N-80º34'3”O and 03º22'8”S-80º49'5”O, of the Ecuadorian Continental Plataform, the depth range from 14 to 115 meters. 120 species were recorded, divided into 85 osseous fish species, three sharks, 11 ray, 18 crustaceans, two molluscan and one holothurid (sea cucumber). Total biomass was estimated as 95297,5 t; with 97,3% of this biomass distributed between 01º00'0”S and 03º23'S. The most abundant species were: barriga juma (Larimus spp) (11153 t), corvina (Cynoscion spp) (4523 t), gallineta (Prionotus spp) (55651 t), perela (Palabrax callaensis) (3774 t) and ravi junco (Centrithmus signifer) (2407 t).
Tipo: Journal Contribution
Palavras-chave: Fishery resources; Demersal fisheries; Continental shelves; Abundance; Geographical distribution; Demersal fisheries; Geographical distribution; Fishery resources; Continental shelves; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_32413.
Ano: 1996
URL: http://hdl.handle.net/1834/2970

Environmental Design and Analysis in Marine Environmental Sampling
Provedor de dados: 20
Autores: Underwood, A.J.
The IOC-IMO-UNEP/GIPME Groups of Experts on Effects of Pollution (GEEP) has been working for a number of years on promoting new ways of understanding how pollutants affect marine biological systems. A major initial focus of GEEP was on calibration workshops where different methods were tested against one another. The Oslo (1986), Bermuda (1988) and Bremerhaven (1992) workshop publications are widely regarded as benchmarks demonstrating that biological effects  methods are reliable tools for measurement of the effects of pollutants discharged to the marine  environment. IOC through GEEP, in cooperation with UNEP, has published a series of manuals based on the successful techniques and these are listed at the back of this volume.  Monitoring programmes for...
Tipo: Book
Palavras-chave: Marine Environment; Environmental monitoring; Environment management; Variability; Marine environment; Measurement; Environmental monitoring; Marine environment; Measurement; Http://aims.fao.org/aos/agrovoc/c_37876; Http://aims.fao.org/aos/agrovoc/c_4610; Http://aims.fao.org/aos/agrovoc/c_4668.
Ano: 1996
URL: http://hdl.handle.net/1834/2794

Estudios ecológicos en el Golfo San Jorge y adyacencias (Atlántico sudoccidental). Distribución, abundancia y variación estacional del fitoplancton en relación a factores físico-químicos y la dinámica hidrológica.
Provedor de dados: 20
Autores: Akselman, R.
This study was based on four seasonal cruises during 1984 and 1985.  It revealed a thermo-haline frontal system formed by the advection of the Coastal Water mass flowing in two branches, one running towards the coast and the other mid-shelf directed. The thermocline developed between late spring and autumn results in a low inorganic nutrient concentration in the upper layer. Nonetheless in winter, a vertical homogeneity and high nutrient concentration were observed.  Phytoplankton development presented a typical temperate-seas annual cycle. In winter, reduced populations were dominated by diatoms. The highest biomass concentration in the cycle coincided with the spring blooming, to which Thalassio sira anguste-lineata,Alexandrium tamarense, Heterocapsa...
Tipo: Theses and Dissertations
Palavras-chave: Phytoplankton; Abundance; Trophic relationships; Cysts; Seasonal variations; Seasonal thermocline; Plankton surveys; Environmental effects; Phytoplankton; Cysts; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_34811.
Ano: 1996
URL: http://hdl.handle.net/1834/1464

Indian Ocean albacore stock structure studies by morphometric and DNA sequence methods
Provedor de dados: 20
Autores: Yeh, S.Y.; Hui, C.F.; Treng, T.D.; Kuo, C.L.
Both morphometric and DNA sequence analyses were applied in this study for throwing light on the stock structure of the albacore (Thunnus alalunga) resource in the Indian Ocean. A total of 144 albacore individuals, sampled from vessels fishing in 6 different localities of the Indian Ocean, were used for morphometric comparison. Two fisheries research surveys were carried out in 1990-1991 by the R/V Haikung, which belongs to the Taiwan Fisheries Research Institute, for collecting albacore specimens. Seven well-preserved muscle tissue specimens, removed from 7 albacores caught from 3 different localities of the Indian Ocean, were used for DNA sequence comparison. The results show that: 1) the first 2 eigen values absorb about 99% of the total...
Tipo: Proceedings Paper
Palavras-chave: Tuna fisheries Stock assessment Stock identification DNA Thunnus alalunga ISW; West Indian Ocean.
Ano: 1996
URL: http://hdl.handle.net/1834/20

Características oceanográficas frente a Ecuador durante septiembre de 1995
Provedor de dados: 20
Autores: Cuadra, T. de la.
One hundred oceanographic stations were occupied in front of Ecuador during september 1995. All the information were treated statically using the method of ”Kriging” to interpolate from this; surface distributions of sea temperature, sea temperature anomalies, air temperature, and atmospheric presion were obtained. These distribution with temperature and salinity profiles showed between normal and cold climatical conditions. Comparing the sea density horizontal distribution and the water mass, with the capture areas distributions of Sardinops sagax, resulted that areas with hight capture had AESS in low quantity and hand too a surface thermocline.
Tipo: Journal Contribution
Palavras-chave: Oceanographic data; Temperature (air-sea); Temperature anomalies; Salinity data; Pelagic fisheries; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_5659.
Ano: 1996
URL: http://hdl.handle.net/1834/2964

Seychelles artisanal fisheries statistics for 1995
Provedor de dados: 20
Autores: Azemia, R.; Grandcourt, E.
(1). During 1995 an estimated total of 4313 tonnes of fish was landed on Mahe. Praslin and La Digue by 337 fishing boats 86,4% of which was landed on Mahe alone. The catch volume has decreased by 114 tonnes since 1994, and the number of boats operating has increased by 9 over the same period. (2). The most important species groups landed (greater than 5% of the total catch) were, carangues {29.8%), job (13.3%), bourgeois (8.3%), maquereau doux (7.5%), cordonicr (6.8%) and capitaine (6.8%). (3). Peak landings occurred in March (546.6 MT) and the lowest catch occurred in January (216.4 MT). The average catch per month was 359.4 tonnes. (4). A marked seasonal variation in catches of demersal species was observed, with low catches being recorded during the...
Tipo: Report
Palavras-chave: Artisanal fishing; Landing statistics; Catch composition; Fish catch statistics.
Ano: 1996
URL: http://hdl.handle.net/1834/5086

Estudios bionómicos del bentos de la plataforma bonaerense y su relación con el resto de la plataforma continental argentina.
Provedor de dados: 20
Autores: Roux, A.
The macrobenthic assemblages of the Buenos Aires Province(Argentina) continental shelf were studied from samples collected by the R/V Capitán Cánepa and R/V Capitán Oca Balda along a transect from38 m to 218 m depth. Three faunistic areas were determined,corresponding to the coastal, central and external shelf, inhabited by species originated from the Argentine and/or Magellanic Zoogeographical Provinces. These results confirm the presence of different ecological areas in the Argentine continental shelf. Mussel (Mytilus edulis platensis) beds, red porgy (Sparus pagrus) fishing ground and the Argentine-Uruguayan Common Fishing Zone (CFZ) demersal fishing grounds at the continental shelf of Buenos Aires Province were also analyzed to increase the knowledge...
Tipo: Theses and Dissertations
Palavras-chave: Zoobenthos; Fishery surveys; Exclusive economic zone; Ecological associations; Dominant species; Stomach content; Fishing grounds; Dominant species; Zoobenthos; Ecological associations; Fishing grounds; Http://aims.fao.org/aos/agrovoc/c_2362; Http://aims.fao.org/aos/agrovoc/c_15487; Http://aims.fao.org/aos/agrovoc/c_32845; Http://aims.fao.org/aos/agrovoc/c_2947.
Ano: 1996
URL: http://hdl.handle.net/1834/1489

Estimación preliminar de la mortalidad natural de la merluza de cola (Macruronus magellanicus) en la plataforma sur-patagónica (Argentina)
Provedor de dados: 20
Autores: Ehrhardt, N.M.; Prenski, L.B.
Long-tail hake, Macruronus magellanicus, is an important species in the Argentinean southern demersal species complex. Significant development of these fisheries since 1987 is indicative of the need to assess the hoki resource and for this purpose knowledge about some of the fundamental population parameters, such as natural mortality rate, is required. Knowledge on the natural mortality rate is an important element for the quantification of the resilience of the stock to fishery exploitatuib. In this study an algorithm for estimating natural mortality of hoki is developed which is based on information on abundance at age obtained from area swept methods and from age composition in the landings. As a result, natural mortality rates for ages 5 to 9 ranged...
Tipo: Journal Contribution
Palavras-chave: Demersal fisheries; Mortality; Abundance; Demersal fisheries; Mortality; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_4945.
Ano: 1996
URL: http://hdl.handle.net/1834/1962

Evidencia de ondas ecuatoriales en Salinas y Galápagos
Provedor de dados: 20
Autores: Bayot, B.; Cornejo Rodríguez, M.P.
La importancia fundamental de estas ondas en las regiones tropicales (30°S-30°N) y especialmente en el sector ecuatorial (5°S-5°N), radica en que al propagarse más rápidamente que en regiones subtropicales, permiten un ajuste oceánico más rápido y eficaz ante cualquier alteración oceano-atmosférica. Sin embargo las ondas "interesantes" son las que transmiten cambios anormales, ya que en algunos casos lo hacen sin dispersión. Por ejemplo, las ondas Kelvin que son originadas en el Pacífico Ecuatorial Occidental, por la supresión o cambios de dirección de los vientos del este y coherentes con eventos ENOS, viajan a lo largo del Pacífico Ecuatorial hasta chocar con el continente sudamericano.
Tipo: Journal Contribution
Palavras-chave: Equatorial waves; Wave data; Kelvin waves.
Ano: 1996
URL: http://hdl.handle.net/1834/2186

Ecología trófica de peces demersales en el Golfo San Jorge
Provedor de dados: 20
Autores: Sánchez, M.F.; Prenski, L.B.
This work is a first approach in the study of the trophic ecology from a multispecific fishery in San Jorge Gulf (45°-47°S), Argentina. Stomach contents from 28 demersal fish species were analyzed. Taxonomic and trophic spectrum were obtained. Using weight percentage of each prey, trophic spectrum variations for size classes were analized for each of the 12 considered "dominant" species. Overlaping in the diet among these predators was estimate using cluster analysis. There was an interespecific diet overlap between juveniles belonging to demersal-benthic fish species, because all of them prey upon Stomatopoda and Munida. Adults from those species and hake prefered young and adult hake as preys, while Macruronus magellanicus and juvelines Merluccius hubbsi...
Tipo: Journal Contribution
Palavras-chave: Marine fish; Trophic relationships; Feeding; Zooplankton; Feeding; Zooplankton; Http://aims.fao.org/aos/agrovoc/c_2838; Http://aims.fao.org/aos/agrovoc/c_15490.
Ano: 1996
URL: http://hdl.handle.net/1834/1963

Prises accessoires des pêcherie crevettière et merluttières spécialisées dans les eaux mauritaniennes : Evaluation qualitative
Provedor de dados: 20
Autores: Diop, M.
Résumé L’analyse des échantillons prélevés sur les captures des crevettiers et merluttiers espagnols opérant dans les eaux mauritaniennes entre 1991 et 1994, a montré que ces pêcheries engendrent beaucoup de prises accessoires. Ces dernières varient entre 87% et 89% pour la pêcherie crevettière et dépassent 64% pour la pêcherie merluttière. Le rapport prises accessoires/capture espèce cible varie donc de 7 :1 à 8 :1 pour les crevettiers et se situerait à environ 2 :1 pour les merluttiers. Les prises accessoires sont constituées principalement de poissons démersaux (représentés essentiellement par les sparidés), de céphalopodes (poulpe, seiches et calmar) et de petits pélagiques. Les poissons démersaux sont largement dominants.
Tipo: Journal Contribution
Palavras-chave: Shrimp fisheries; Hake fisheries; Bycatch; Http://aims.fao.org/aos/agrovoc/c_15949.
Ano: 1996
URL: http://hdl.handle.net/1834/230

Características oceanográficas frente a Ecuador durante noviembre de 1995
Provedor de dados: 20
Autores: Cuadra, T. de la.
In this work, the oceanographics and atmospheric index showed normals climatical conditions. The horizontal and vertical distributions obtained from 34 oceanographic stations, partitioned the area researched in two: The 1th area in association with weak upwelling in the south of Golfo de Guayaquil, and influenced probably the distributions and abundance of fishery resources. The 2th in the north of the point Sta Elena, in association with a strong thermocline.
Tipo: Journal Contribution
Palavras-chave: Oceanographic data; Climatic data; Thermocline; Climatic data; Http://aims.fao.org/aos/agrovoc/c_29553.
Ano: 1996
URL: http://hdl.handle.net/1834/2967

Brachiopoda collected in the Western South Atlantic by R/V Shinkai Maru cruises (1978-1979)
Provedor de dados: 20
Autores: Roux, A.; Bremec, C.
Brachipods dredged during the cruises Shinkai Maru IV, V, X and XI (1978 - 1979)on the Western South Atlantic in the Argentine Continental Shelf in 36 sampling stations are here reported. Terebratella dorsata (Gmelin), Magellania venosa (Solander)y Liothyrella uva (Broderip)have been recorded in a depth range of 55 to 189 meters in a area which extends from 36°32'S to 54°30'S and from 55°30'W to 68°42'W. Brachiopod localities and brief ecological and geographical distribution aspects are mentioned.
Tipo: Journal Contribution
Palavras-chave: Benthos; Geographical distribution; Benthos; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_878; Http://aims.fao.org/aos/agrovoc/c_5083.
Ano: 1996
URL: http://hdl.handle.net/1834/1958

Comparative studies on paralytic shellfish toxin profiles of marine snails, mussels and an Alexandrium tamarense isolate from the Mar del Plata coast (Argentina)
Provedor de dados: 20
Autores: Carreto, J.I.; El Busto, C.; Sancho, H.; Carignan, M.O.; Yasumoto, T.; Oshima, Y.
Toxin composition of three species of marine gastropods Zidona angulata, Adelomedon brasiliana and Pachycymbiola brasiliana and the mussel Mytilus edulis, and an Alexandrium tamarense isolate (AMI)from the Mar del Plata coast, were determined by means of a sensitive and specific HPLC technique. Cultures of A. tamarense contain N-sulfocarbamoyl derivatives as major toxins. The next most abundant components were GTX1 neoSTX and GTX4. As minor components, unusual decarbamoyl toxins were detected. Saxitoxin was the lowest of the 10 detectable toxins. Comparison of toxins profiles revealed significant differences between the toxic composition of the dinoflagellate and that accumulated in the tissues of their primary and secondary consumers. In the mussel M....
Tipo: Journal Contribution
Palavras-chave: Marine molluscs; Toxicity; Toxicity; Http://aims.fao.org/aos/agrovoc/c_7826.
Ano: 1996
URL: http://hdl.handle.net/1834/1956

The Seaweed Resources of kwaZulu-Natal, South Africa: The Current State of Our knowledge
Provedor de dados: 20
Autores: Aingworth, J.; Gillesi'ie, R.D.; Critchley, A.T.
The coastline of KwaZulu-Natal, South Africa supports a substantial diversity of seaweeds which remains to a great extent unresearched with regard to both utilization and conservation. This paper discusses the seaweed flora of KwaZulu-Natal from aresource utilization perspective and identifies research needs (or seaweeds in the region. At present there is no publishedliterature for any seaweed species of KwaZulu-Natal in terms of standing stock, or conservation status. This paper identifiesthe following as primary considerations when discussing the seaweed resources of any region: taxonomic composition of theflora; identification of actual and potential uses for the resource and the development of suitable stock assessment andharvesting strategies or...
Tipo: Book Section
Palavras-chave: Seaweed resources.
Ano: 1996
URL: http://hdl.handle.net/1834/468

An Overview of African Wetlands
Provedor de dados: 20
Autores: Kabii, T.
The African region as described in this overview includes the mainland continent and the island states of Cape Verde, Comoros, Madagascar, Mauritius, Sao Tome &amp; Principe, and Seychelles, making up a total of 53 States, 23 of which are Contracting Parties to the Ramsar Convention. Africa's size and diversity of landscape are striking: bordered by the Mediterranean Sea to the north, the Indian and Atlantic oceans to the east and west respectively, and the Antarctic in the south, it covers 70º of latitude, several climatic zones, and a considerable altitudinal range. Various wetland types characterize the diverse and panoramic African environment, from mountains reaching an altitude of 6,000m through deserts to coastal zones at sea level. Although...
Tipo: Working Paper
Palavras-chave: Wetlands.
Ano: 1996
URL: http://hdl.handle.net/1834/457

Review of the state of pollution of the Lagos lagoon
Provedor de dados: 20
Autores: Ajao, E.A.
Guinea coast. It is a shallow expanse of water with restricted circulation in a micro-tidal environment.  This aquatic resource of multiple usages receives inputs of domestic The Lagos Lagoon is the largest of the four lagoon systems of the Gulf of hydrocarbon cooling water from a thermal power station and emissions from automobile exhaust.  Micro-pollutants examined in the water, sediment and biota have included organic waste, trace heavy metals and chlorinated hydrocarbons.  Concentrations detected have identified â  hot spotsâ   and relatively unpolluted areas for the different contaminants in the lagoon.  The results show marked variations and non-uniform distribution from one season to another.  It has been difficult to differentiate pollution effects...
Tipo: Report
Palavras-chave: Marine pollution; Lagoons; Lagoons; Http://aims.fao.org/aos/agrovoc/c_4158.
Ano: 1996
URL: http://hdl.handle.net/1834/2213

Outline of tuna fishery in Madagascar
Provedor de dados: 20
Autores: Gilbert, F.
Following a brief history of the tuna fisheries in Madagascar, an account is given of the current situation, providing also details of various fishing agreements and protocols passed by Madagascar during the period 1986-1994. Tuna catches in the Madagascan EEZ since 1988 are listed and financial costs of tuna activities are outlined.
Tipo: Proceedings Paper
Palavras-chave: Tuna fisheries Fishery data Fishery development ISW; Malagasy Rep.
Ano: 1996
URL: http://hdl.handle.net/1834/14

Marine invertebrate communities of Baie Ternay National Marine Park and Baie Beau Vallon, Mahe, Seychelles
Provedor de dados: 20
Autores: Pittman, S.J.
Typically, coral reefs are dominated by sedentary colonial organisms. Species compositions are temporally and spatially dynamic and populations may be seen to interact through similar mechanisms as those observed in terrestrial plant communities. In these areas, intense competition for limited niche space, selects for varied defensive and offensive strategies and reproductive life history traits.
Tipo: Report
Palavras-chave: Marine parks; Marine invertebrates.
Ano: 1996
URL: http://hdl.handle.net/1834/906

Distribución del ictioplancton y zooplancton en el Golfo de Guayaquil y costa central de Manabí durante noviembre de 1995
Provedor de dados: 20
Autores: Ortega, D.; Elías, E.
Are presented the distribution of ichthyoplankton and zooplankton between the 2th and 6th of november 1995 were observed from the central coast of Manabí province and the Gulf of Guayaquil waters, 27 stations were surveyed being carried out oblique haulages with nets type bongo of 500~km, 300~km y 150~km, hasta una profundidad de 200 m; superficial haulage were carried out by using a net of 200~km as well twenty families and eleven gennus of ichthyoplankton were identified. The Engraulidae family was the most representative with 3671 larvas (10 m2)-1 while the Scombridae and Clupeidae families registered 46 and 121 larvas (10 m2)-1 respectively. There were identified larvas of demersal fish with: Sciaenidae, Carangidae, Serranidae and Gerridae. In the...
Tipo: Journal Contribution
Palavras-chave: Ichthyoplankton; Geographical distribution; Zooplankton; Larval development; Geographical distribution; Zooplankton; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_15490.
Ano: 1996
URL: http://hdl.handle.net/1834/2969

Pterópodos tecosomados y heterópodos (Gasterópodos) como bioindicadores del evento "El Niño" 1992, en la estación fija "La Libertad", Ecuador
Provedor de dados: 20
Autores: Cruz, M.
Acogiendo la recomendación del "Estudio Regional del fenómeno El Niño" (ERFEN), de la Comisión Permanente del Pacífico Sur (CPPS), de buscar nuevos organismos que puedan ser utilizados como bioindicadores tempranos de el fenómeno "EN", desde Junio/90 se viene estudiando quincenal y mensualmente a los Pterópodos tecosomados y Heterópodos en la estación fija "La Libertad", que está localizado 10 millas costa afuera en la Latitud 02°06'00" y Longitud 81°03'43''.
Tipo: Journal Contribution
Palavras-chave: Marine molluscs; Distribution records; Organism morphology; Indicator species; Marine meteorology; Indicator species; Http://aims.fao.org/aos/agrovoc/c_35790.
Ano: 1996
URL: http://hdl.handle.net/1834/2190

Seychelles tuna bulletin : first quarter 1996
Provedor de dados: 20
Data used to generate the tables and figures presented here are based on daily catch and effort forms (logbooks) returned from fishing vessels which are licensed to fish in the Seychelles EEZ. Sometimes there is a delay in these being received at SFA, especially during and just after the second quarter of the year when most vessels are fishing in the Mozambique Channel. Readers should be aware that many of the figures presented here (especially the most recent) are subject to revision (usually upwards) as more data become available. The date upon which the SFA database was closed prior to the generation of the statistical tables is shown at the head of each table. Purse seiners Principal Points - The total purse seine tuna catch for the Western Indian...
Tipo: Other
Palavras-chave: Purse seiners; Catch statistics; Tuna fisheries.
Ano: 1996
URL: http://hdl.handle.net/1834/5195

Description de l'activité de la flottille industrielle pélagique dans la zone économique exclusive mauritanienne en 1990
Provedor de dados: 20
Autores: Ould Taleb Ould Sidi, M.M.
Résumé : En 1990, la pêcherie pélagique en Mauritanie s’est caractérisée par d’importantes variations – tant en termes d’effort et de rendement qu’au niveau de la composition spécifique des captures – par rapport aux années antérieures. En effet, l’effort, exprimé en jours de pêche standards, a atteint 9761 jours de pêche standards ; ce qui constitue une augmentation de plus de 21% par rapport à 1989. Aussi, avec 372000 tonnes, les captures totales ont enregistré une augmentation de 4,4%. Pour sa part, la Prise par Unité d’Effort (PUE) a enregistré un recul sensible passant de 44 tonnes/jour de pêche (t/jp) en 1989 à 38 t/jp en 1990. La composition spécifique des captures a été marquée par une augmentation importante de la contribution des sardinelles qui...
Tipo: Journal Contribution
Palavras-chave: PUE; Pelagic fish; Catch/effort; Capture fisheries.
Ano: 1996
URL: http://hdl.handle.net/1834/232

Identificación y morfometría de las mandibulas de Loligo gahi y Loligo sanpaulensis (Cephalopoda, Loliginidae) del Atlántico Sudoccidental
Provedor de dados: 20
Autores: Pineda, S.E.; Aubone, A.; Brunetti, N.E.
Beaks of Loliginid squids have very similar morphological features making identification of the species to be quite difficult. A new metodology to identify species from the relative growth of some parts of the beak is presented. Samples of Loligo gahi and Loligo sanpaulensiswere obtained from ten reserch cruises of RVS "Dr. Holmberg" and "Captain Oca Balda" and eight commercial landings at Mar del Plata Port during the period 1992-1993. The results obtained using the new metodology (Metric Discriminant Criterium)were compared with those resulting from the application of the Fisher's Lineal Discriminant Criterium. Both mantle length - rostral length and total weight - rostral length relationships, corresponding to each species were fitted. Either upper or...
Tipo: Journal Contribution
Palavras-chave: Morphometry; Methodology; Growth curves; Methodology; Http://aims.fao.org/aos/agrovoc/c_12522.
Ano: 1996
URL: http://hdl.handle.net/1834/1961

Estudio sedimentológico de la laguna costera El Soldado, Sonora, México
Provedor de dados: 20
Autores: Olivas Silva, R.; De la O Villanueva, M.; Villalba, A.I.
El presente trabajo pretende contribuir a un conocimiento más amplio en la naturaleza del medio sedimentario de un cuerpo de agua del litoral de Sonora, tomando en consideración elementos ambientales básicos como son:  fisiografía, geomorfología, materiales, energía, caracteríisticas físicas y químicas de los sedimentos y un análisis sobre organismos bentónicos (bivalvos).
Tipo: Journal Contribution
Palavras-chave: Sediments; Coastal lagoons; Lagoonal sedimentation; Sediment chemistry; Sediment distribution; Sediment texture; Coastal lagoons; Http://aims.fao.org/aos/agrovoc/c_1697.
Ano: 1996
URL: http://hdl.handle.net/1834/2195

Distribución del ictioplancton y zooplancton en la costa ecuatoriana septiembre 1995
Provedor de dados: 20
Autores: Ortega, D.; Elías, E.; Zurita, C.
Between the 6 and 13 of september of 1995, a study about the abundance, distribution of fish eggs and larvae in relation of the abundance and presence of the zooplankton in the Gulf of Guayaquil was carried out. The biggest fish larvae quantity was registered at station 16, 37 and 60 with values 500 and 1000 larvae.(10 m2)-1 which position at was long. 81~'00' - 82~'00'W; lat. 01~'00'S - 3~'04'S while the fish eggs concentration was 500 eggs.(10 m2)-1 at station 21. The smalles fish larvae quantity was registered between 6 and 73 larvae.(10 m2)-1, situated long. 81~'30' - 82~'00'W - lat. 02~'40' - 00~'59'S and 01~'00' south. At north of Gulf near of Puntilla of Santa Elena, Lat. 02~'00'S - Long. 81~'00'W, in the Center of the Ecuadorian coast, near of San...
Tipo: Journal Contribution
Palavras-chave: Ichthyoplankton; Zooplankton; Abundance; Geographical distribution; Zooplankton; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_15490; Http://aims.fao.org/aos/agrovoc/c_5083.
Ano: 1996
URL: http://hdl.handle.net/1834/2966

Algunos aspectos de la biología reproductiva y comportamiento trófico de la corvina rubia (Micropogonias furnieri) en relación al frente salino del estuario del Río de la Plata.
Provedor de dados: 20
Autores: Bava, J.; Jaureguizar, A.; Meijide, F.
Tipo: Theses and Dissertations
Palavras-chave: Feeding behaviour; Reproduction; Brackishwater fish; Trophic relationships; Feeding behaviour; Reproduction.
Ano: 1996
URL: http://hdl.handle.net/1834/4005

Country report -- Mauritius
Provedor de dados: 20
Autores: Munbodh, M.
A brief account is given of the current situation regarding the tuna fishery industry in the Mauritius. A handline fishery from 13 motherships exploits the banks of the Mascarenes Ridge and the Chagos Archipelago and a purse seine fishery has developed since 1979 under a joint venture enterprise. Tuna canning operations and tuna transhipment are outlined and details provided of fishing agreements and licensing of fishing vessels. Measures which will expand benefits from tuna resources are listed.
Tipo: Proceedings Paper
Palavras-chave: Fishery development Mascarene Is.; Mauritius Fishery industry Tuna fisheries Fishery regulations Canning Tuna fisheries Fishery industry Canning Fishery regulations Fishery development Tuna Fishery production Canning fishery economics http://aims.fao.org/aos/agrovoc/c_8003 http://aims.fao.org/aos/agrovoc/c_2940 http://aims.fao.org/aos/agrovoc/c_1260 http://aims.fao.org/aos/agrovoc/c_49862.
Ano: 1996
URL: http://hdl.handle.net/1834/15

Analysis of the Purse Seine Fishery of Mauritius, 1990 - 1994, and Comparison of Catch Rate and Species Composition of Catches of Mauritian Purse Seiners to Those of the French Fleet
Provedor de dados: 20
Autores: Norungee, D.; Lim Shung, C.
The catches made by purse seiners on schools associated with logs constitute more than half of the total catch of the purse-seine fishery of the western Indian Ocean. In the purse-seine fishery on log-associated schools of tuna, either natural logs are spotted by vessels and are marked with radio beacons, or artificial logs are set at sea to concentrate the tuna prior to fishing operations. The first attempt at commercial purse seining was successfully carried out in the Indian Ocean in 1979 by a joint-venture Mauritian vessel using the same technique as the Japanese, who had traditionally fished on schools associated with logs in the Pacific Ocean. They started fishing in the Indian Ocean after experimental purse-seine fishing was conducted by the Japan...
Tipo: Report
Palavras-chave: Purse seines; Catch rate.
Ano: 1996
URL: http://hdl.handle.net/1834/513

Estudio de algunos aspectos del ciclo vital de la merluza de cola Macruronus magellanicus, Lonnberg, 1907.
Provedor de dados: 20
Autores: Giussi, A.R.
Long tailed hake Macruronus magellanicus, is a demersal fish,distributed in the SW Atlantic Ocean, in Malvinas Current waters,from 36° and 55°S, mainly between 50m and 200m depth. The species is also distributed in Chilenian waters in the Pacific Ocean, being caught in the Magellan Strait and the Beagle Channel. Age determination was estimated with the sagittae otoliths, in which only one ring is formed during the year. Growth parameters were calculated directly and with back calculated methodology, no differences were observed between the results. Differences in growth sexes were evident from 3 years old. The oldest age observed was 13. Different distributional areas of adults through out the year could suggest a migratory movement in northern waters of...
Tipo: Theses and Dissertations
Palavras-chave: Life cycle; Growth; Otoliths; Age determination; Reproduction; Population dynamics; Mortality; Population structure; Fishery surveys; Fishing grounds; Geographical distribution; Back calculation; Growth; Otoliths; Age determination; Population structure; Geographical distribution; Life cycle; Reproduction; Population dynamics; Mortality; Fishing grounds; Http://aims.fao.org/aos/agrovoc/c_3394; Http://aims.fao.org/aos/agrovoc/c_27091; Http://aims.fao.org/aos/agrovoc/c_24110; Http://aims.fao.org/aos/agrovoc/c_6115; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_4317; Http://aims.fao.org/aos/agrovoc/c_6507; Http://aims.fao.org/aos/agrovoc/c_6111; Http://aims.fao.org/aos/agrovoc/c_4945; Http://aims.fao.org/aos/agrovoc/c_2947.
Ano: 1996
URL: http://hdl.handle.net/1834/1488

Ictioplancton presente en el Golfo de Guayaquil durante la etapa de prospección acústica y pesca comprobatoria, septiembre 1995
Provedor de dados: 20
Autores: Ortega, D.
During the 14th and 27th of november 1995, were colected samples to determinate distribution, presence of eggs and fish larvae in the Guayaquil Gulf waters. The highest quantity of fish larvae 2 500 larvae.(10m2)-1 was showed (02~'40'S - 82~'50'W); while the fish eggs was registered as 15 000 eggs.(10m2)-1. The minor quantities of fish larvae between 48 and 57 larvae.(10m2)-1, which located around longitude 81~'20' - 82~'40'W and latitude 02~'40'S - 02~'50'S. In the North part of the Guayaquil Gulf, fish larvae were registered at concentrations between 500 and 2000 larvae.(10m2)-1, near Tip of Santa Elena (02~'25'W and 81~'10'W), a the one area which presented the hightest quantity 150 000 eggs.(10m2)-1 of fish eggs; the Carangidae and Scombridae families...
Tipo: Journal Contribution
Palavras-chave: Ichthyoplankton; Geographical distribution; Abundance; Fishery resources; Pelagic fisheries; Geographical distribution; Fishery resources; Pelagic fisheries; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_5659.
Ano: 1996
URL: http://hdl.handle.net/1834/2963

Artisanal fishing boats in Seychelles
Provedor de dados: 20
Autores: Payet, R.J.
The results of a census of fishing boats on Mahe, Praslin and La Digue are presented. In total 437 boats were counted of which 278 were outboards with engine, 48 were open whaler, 35 were pirogues, 25 were lekonomi, 22 were schooners, 11 were semi-industrial so were lavenir, 12 were 'others', 8 were whaler with deck, 4 were nouvo lavenir and 3 were wooden boats without engines. The details are discussed to understand the characteristics of the artisanal fishing boats. An analysis of the historical data follows. The number of pirogues and schooners decreased from 1985 to 1995, whilst the numbers of whalers have increased. Outboards on the other hand had remained relatively stable. The changes in the number of boats are a result of interaction between the...
Tipo: Report
Palavras-chave: Fishing boats; Census.
Ano: 1996
URL: http://hdl.handle.net/1834/5123

Metodología de bioensayos y efectos tóxicos de algunos contaminantes sobre organismos de interés ecológico pesquero
Provedor de dados: 20
Autores: Suárez Álvarez, G.
Este trabajo trata de presentar los efectos tóxicos de cuatro posibles contaminantes de la plataforma cubana, un plaguicida órgano clorado el DDT y 3 metales, el cromo, el cobre y el plomo, sobre postlarvas de langosta P. argus y el camarón P. notialis. Persiguiendo un triple propósito en sus objetivos, presentar de una forma cómoda, con fines didácticos la resolución de los tres métodos de trabajo adoptados internacionalmente para evaluar la toxicidad, el método gráfico semi logarítmico, rutinario o estándar, el método de los Probits de Bliss y la modificación de Licthfield y wilcoxon, así como analizar de dichas metodologías cual es la más adecuada para la evaluación de los efectos de cualquier contaminante con mayor precisión estadística y conocer los...
Tipo: Theses and Dissertations
Palavras-chave: Toxicity; Heavy metals; Metals; Toxicity; Heavy metals; Metals; Http://aims.fao.org/aos/agrovoc/c_7826; Http://aims.fao.org/aos/agrovoc/c_2223; Http://aims.fao.org/aos/agrovoc/c_29036.
Ano: 1996
URL: http://hdl.handle.net/1834/2610

Ciclo reproductivo y fecundidad del lenguado Paralichthys patagonicus Jordan, Jordan y Goss 1889
Provedor de dados: 20
Autores: Macchi, G.J.; Diaz de Astarloa, J.M.
The reproductive characteristics of the flounder (Paralichthys patagonicus)are analyzed on the basis of the microscopic and macroscopic study of the ovaries. Preliminary estimations of the fecundity of this species are also made. The samples were obtained from the monthly commercial langings in Mar del Plata and from research cruises undertaken by the INIDEP. A total of 641 ovaries were studied; 210 of which were selected for the histological analysis. 24 ovaries with hydrated oocytes and without post-ovulatory follicles were used to determine batch fecundity. A macroscopic maturity scale of five stages was established. The histological analysis allowed to introduce three substage within the maturation stage including a partial spawning stage. According to...
Tipo: Journal Contribution
Palavras-chave: Reproductive cycle; Fecundity; Ovaries; Ovaries; Fecundity; Http://aims.fao.org/aos/agrovoc/c_5456; Http://aims.fao.org/aos/agrovoc/c_15725.
Ano: 1996
URL: http://hdl.handle.net/1834/1960

El Niño y sus implicaciones sobre el medio ambiente
Provedor de dados: 20
Autores: Espinoza, J.
En este contexto, se reconoce que la prevención es prioritaria por los grandes beneficios sociales y económicos que resultan de una buena y oportuna aplicación de dichas medidas, las cuales como instrumento sustancial deben contar con la información adecuada para los organismos responsables en la toma de decisiones.
Tipo: Journal Contribution
Palavras-chave: El nino phenomena; Environmental effects.
Ano: 1996
URL: http://hdl.handle.net/1834/2224

Varamiento de cachalotes (Physeter macrocephalus) (Cetacea: Physeteridae) en la costa ecuatoriana por interacción con pesquerías
Provedor de dados: 20
Autores: Haase, B.; Félix, F.
El objetivo del presente trabajo es dar a conocer los varamientos de cachalotes en la costa ecuatoriana y mostrar que en algunos casos tales hechos tuvieron una relación directa con actividades pesqueras.
Tipo: Journal Contribution
Palavras-chave: Marine mammals; Protected resources; Stranding; Mortality; By catch; Mortality; Http://aims.fao.org/aos/agrovoc/c_4945.
Ano: 1996
URL: http://hdl.handle.net/1834/2192

Seychelles tuna bulletin : fourth quarter 1995
Provedor de dados: 20
Data used to generate the tables and figures presented here are based on daily catch and effort forms (‘logbooks’) returned from fishing vessels which are licensed to fish in the Seychelles EEZ. Sometimes there is a delay in these being received at SFA, especially during and just after the second quarter of the year when most purse seiners are fishing in the Mozambique Channel. The long liners are generally slow in returning logbooks. Readers should be aware that many of the figures presented here (especially the most recent) are subject to revision as more data become available. The date upon which the SFA database was closed prior to the generation of the statistical tables is shown at the head of each table. Purse seiners Principal Points - The total...
Tipo: Other
Palavras-chave: Catch statistics; Purse seiners; Tuna fisheries.
Ano: 1996
URL: http://hdl.handle.net/1834/5193

Les interactions dans les pêcheries démersales côtières sénégalaises
Provedor de dados: 20
Autores: Barry, M.D.
Les pêcheries artisanales et industrielles sénégalaises se côtoient avec des moyens et des stratégies différents et développent des relations de complémentarité et de concurrence pour l’exploitation des ressources halieutiques.
Tipo: Working Paper
Palavras-chave: Demersal fisheries; Artisanal fishing; Fishery industry.
Ano: 1996
URL: http://hdl.handle.net/1834/815

Middle Eastern Natural Environments
Provedor de dados: 20
Autores: Feidi, I.H.
Arab fisheries resources, including the coastal waters of the Arab states, inland waters, and aquaculture potential, are an important sector for development. If rationally and scientifically exploited, fisheries could play a role in meeting increased food demand, and in activating the economies of the region, possibly surpassing oil exploitation by being a renewable and self-replenishing resource.
Tipo: Journal Contribution
Palavras-chave: Environments.
Ano: 1996
URL: http://hdl.handle.net/1834/414

IOC Committee on International Oceanographic Data and Information Exchange
Provedor de dados: 20
Autores: IOC.
Supported by IOC/IODE
Tipo: Report
Palavras-chave: Oceanography; Aquatic sciences.
Ano: 1996
URL: http://hdl.handle.net/1834/1592

Algunos aspectos de la biología reproductiva y comportamiento trófico de la corvina rubia (Micropogonias furnieri) en relación al frente salino del estuario del Río de la Plata.
Provedor de dados: 20
Autores: Bava, J.; Jaureguizar, A.; Meijide, F.
Tipo: Theses and Dissertations
Palavras-chave: Feeding behaviour; Reproduction; Brackishwater fish; Trophic relationships; Feeding behaviour; Reproduction; Http://aims.fao.org/aos/agrovoc/c_10778; Http://aims.fao.org/aos/agrovoc/c_6507.
Ano: 1996
URL: http://hdl.handle.net/1834/4005

Composición del fitoplancton frente a la costa ecuatoriana durante septiembre de 1995
Provedor de dados: 20
Autores: Prado, M.
During the period 6th - 13th of september 1995, the National Fisheries Institute carried out an oceanographic cruise in the Gulf of Guayaquil area and at the northern ecuadorian coast from 3~'10'S and 00~' latitude to 80~'- 82~'W longitude. During the survey, 22 planktological stations were carried out. Vertical towings in the water colum of 50 m depth were also made, using a net of 55~km. A total of 109 species were identified. High concentrations of diatoms and dinoflagellates were observed along the sampling area. The most common species were Proboscia alata, Rhizosolenia styliformis, Ornithocercus steinu and Ceratium tripos. It was also determined a high fertilitty area (1,3 x 106 cel.m-3). Yet, this indicates the presence of an equatorial undercurrent...
Tipo: Journal Contribution
Palavras-chave: Phytoplankton; Geographical distribution; Composition; Phytoplankton; Geographical distribution; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_5083.
Ano: 1996
URL: http://hdl.handle.net/1834/2965

Primeros registros de la Orca pigmea Feresa attenuata (Cetacea, delphinidae) y del Cachalote enano Kogia simus (Cetacea, physeteridae) en Ecuador continental
Provedor de dados: 20
Autores: Félix, F.; Haase, B.; Samaniego, J.
Se presenta información sobre los primeros registros de la orca pigmea (Feresa attenuata) y del cachalote enano (Kogia simus) realizados en aguas costeras de Ecuador. La información se basa en un espécímen joven de orca pimea encontrado en la costa y en la cabeza colectada de un cachalote enano atrapado en una red agallera. Además se informa sobre el primer espécimen de un cachalote enano (K. simus) colectado en las islas Galápagos.
Tipo: Journal Contribution
Palavras-chave: Marine mammals; New records; Coastal waters; Coastal waters; Http://aims.fao.org/aos/agrovoc/c_25205.
Ano: 1996
URL: http://hdl.handle.net/1834/2194

Distribución del fitoplancton frente a la costa del Ecuador durante noviembre 1995
Provedor de dados: 20
Autores: Coello, D.
During the oceanographic cruises (T95/10/04 DO, B/I Tohalli) which were carried out during the period between the 2nd-6nd of november 1995, along the from the coast at 81~'20'W and between 01~'10' to 03~'20'S, 17 differents phytoplankton station, were surveyed for each station vertical drags were done in a water colum of 50 m depth by using of 47,5 cm diameter, 130 cm long and 55~km of light ned. The cualitative and quantitative plankton analysis shown that the studied area correspond to biological fertility region with Rhizosolenia styliformis, Coscinodiscus marginatus an Ceratium tripos as the dominant spacies. An area of phytoplankton activity is identifie as of having an outcrop origine (station 7, 8 and 9). The station that presented the major...
Tipo: Journal Contribution
Palavras-chave: Phytoplankton; Geographical distribution; Continental shelves; Phytoplankton; Geographical distribution; Continental shelves; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_32413.
Ano: 1996
URL: http://hdl.handle.net/1834/2968

Spiny lobster fishery around the Mahe Plateau : Results and analysis presentation, November 1995 - January 1996
Provedor de dados: 20
Autores: Domingue, G.
This report reviews the spiny lobster fishery on the Mahe Plateau during the 1995-1996 fishing season. Following recommendation made after the 1994-1995 season the lobster fishing season was again re-opened for the fourth consecutive year. As in the 1994-1995 fishing season the 1995-1996 season was opened over a three months period. The monitoring programme set up in 1992 was continued to gather more information on the spiny lobster stock so as to improve the management of this resource around the Mahe Plateau. A total of 26 applications were made for licenses to fish for lobster, however, only 23 applicants were granted licenses after paying the required license fee. 17 licenses were bought by fishermen from Mahe, 4 by fishermen from La Digue and 2 by...
Tipo: Report
Palavras-chave: Resource management.
Ano: 1996
URL: http://hdl.handle.net/1834/5170

Fish-Aggregating Devices (FADS) as a Tool to Enhance Production of Artisanal Fishermen: Problems and Perspectives
Provedor de dados: 20
Autores: Sheik Mamode, A.; Venkatasami, A.
Although Mauritius has a total land area of 2200 km2 and an EEZ of 1.6 million km2 due to the presence of outer islands, its total production of fish is relatively low. This is due to the fact that the primary productivity of the surrounding sea is one of the lowest in the Indian Ocean, at 0.15 g/m2/day (FAO/IOP, 1978). In the lagoon and reef drop-off of Mauritius, 2,840 artisanal fishermen produced only 1,663 t of fish in 1993. The MSY of this area is estimated at 1,669 t (Samboo &amp; Mauree, 1987). The demand for fish products is on the increase in Mauritius, due to the improving living standards of the population, and to the increasing consciousness of the benefits to health of fish protein; the per capita consumption has increased from 12.5 kg in 1985...
Tipo: Report
Palavras-chave: Artisanal fishing.
Ano: 1996
URL: http://hdl.handle.net/1834/511

Creation of a new fisheries policy in South Africa: The development process and achievements
Provedor de dados: 20
Autores: Nielsen, J.R.; Martin, R.
South Africa has a coastline over 3,000 km long and an Exclusive Economic Zone (EEZ) of 200 nautical miles, constituting an area which contains a huge variety of fish species. The wholesale value of the fishing industry is worth R1.7 billion which represents 0.5% of South Africa’s GNP and 1.5% of the GRP of the Western Cape province. The fishing industry, which employs 27,000 people1, is mainly based in the Western Cape, and close to 90% of all South African landings are made in Cape harbours. The industry is extremely complex, and there is a great diversity in catching techniques, processing, marketing, capital investment, equipment and infrastructure. However, the industrialised hake sector dominates the industry. Recreational fishing is very popular in...
Tipo: Working Paper
Palavras-chave: Fishery policy.
Ano: 1996
URL: http://hdl.handle.net/1834/429

Towards Integrated Management and Sustainable Development of Kenya's Coast: Findings and Recommendations for an Action Strategy in the Nyali-Bamburi-Shanzu Area.
Provedor de dados: 20
This document – an integrated Coastal Area Management (ICAM) Action strategy for the Nyali-Bamaburi-Shanzu area is the outcome of a participatory process to reach a broad consensus on how to address these critical coastal management issues at the site, as well as gain experience in ICAM for application to other areas in Kenya. Foe each issue, Findings of fact are presented. These provide background information about the topic, focusing on its significance and the causes and consequences of the problem. Management objectives and implementation strategies are set forth.
Tipo: Working Paper
Palavras-chave: Coastal zone management; Resource management; Environment management.
Ano: 1996
URL: http://hdl.handle.net/1834/110

The fecundity of skipjack tuna (Katsuwonus pelamis) from the western Indian Ocean
Provedor de dados: 20
Autores: Stequert, B.; Ramcharrun, B.
From 281 females with fork lengths ranging from 43 to 73 cm and ripe ovaries, the batch fecundity of skipjack tuna (Katsuwonus pelamis) from the western part of the Indian Ocean was studied. Gilson's fluid, used as a preservative and dissociative agent for oocytes, has a strong and fast action (5 days) on the shrinkage of these oocytes. Counts made with a Dollfus box on sub-samples of dissociated oocytes show that, within a single sexual maturity period (February), the fecundity of skipjack tuna is the same whatever the geographic area: Mozambique Channel and South of Seychelles Islands. On the other hand, although sexual activity is noted for skipjack tuna throughout the year, individual fecundity changes with the season within a single area. This...
Tipo: Proceedings Paper
Palavras-chave: Fecundity Sexual maturity Tuna fisheries Fishery biology Euthynnus pelamis ISW; West Indian Ocean.
Ano: 1996
URL: http://hdl.handle.net/1834/18

Fisheries Co-Management - Theoretical aspects, international experiences and future requirements
Provedor de dados: 20
Autores: Raakjaer Nielsen, J.
The crisis in the fishing industry has gradually led to increasingly rigorous rights and rules of fishermen's activities. This, therefore, places fisheries management institutions in the very centre of the debate, where the possible solutions to the problems may be found. The current crisis in fisheries management can thus be argued to be caused to some degree by a lack of legitimacy of several management regimes. Governmentcentred regulation which has been applied in the past (quota management, input restriction, limited entry and individual fishing quotas) creates incentives to race for fish, break the rules and to mis-report catches. In addition it has also been expensive to administer and enforce these rules.
Tipo: Conference Material
Palavras-chave: Artisanal fishing.
Ano: 1996
URL: http://hdl.handle.net/1834/618

Analysis of small-scale movements of yellowfin tuna around fish-aggregating devices (FADS) using sonic tags
Provedor de dados: 20
Autores: Marsac, F.; Cayré, P.; Conand, F.
The ongoing ultrasonic experiments of phase 2 of the Regional Tuna Project (Commission de l'Ocean Indien) are reported and analysed in relation to the local environmental parameters. Although 7 yellowfin tuna (Thunnus albacares) were tagged during the first 3 cruises of the project, only 5 of  them are considered in this paper, as they were tracked around FADs. Seasonal trends affect the horizontal movements associated with FADs: strong association and homing behaviour during the fishing season vs. weaker association when the fishing season comes to an end and the fish start migrating from the area. The vertical movements are analysed in order to provide a typology of the distribution of tuna in relation to different features (FAD association by day and at...
Tipo: Proceedings Paper
Palavras-chave: Tuna fisheries Fishery surveys Tagging Sonic tags Local movements Migrations Environmental conditions Thunnus albacares ISW; Indian Ocean.
Ano: 1996
URL: http://hdl.handle.net/1834/16

Characteristics of ovogenesis and some data on maturation and spawning of skipjack tuna, Katsuwonus pelamis (Linnaeus, 1758), from the western part of the Equatorial Zone of the Indian Ocean
Provedor de dados: 20
Autores: Timohina, O.I.; Romanov, E.V.
Based on histological analysis of gonads taken from 616 specimens of skipjack tuna (Katsuwonus pelamis) in the western part of the equatorial Indian Ocean, a thorough description of all stages of maturity and cells is given at different stages of ovogenesis. Different phases of cell development were defined for each stage, and size of cells is given. A comparison of visual and histological determinations of maturity stages is made. Fish sizes and ages at which mass maturation is observed, sex ratio and its variation for different size groups in the area studied are suggested. Mass onset of maturity (50%) is observed when females reach 43 cm and males 40 cm in length and 1.5 years of age. Assessment of portioned fecundity is given. The spawning period of...
Tipo: Proceedings Paper
Palavras-chave: Sexual reproduction Oogenesis Sexual maturity ISW; West Indian Ocean Euthynnus pelamis Spawning Developmental stages.
Ano: 1996
URL: http://hdl.handle.net/1834/19

Preliminary studies of Eucheuma cottonii (Rhodophyta) from the Toliara Area, Madagascar
Provedor de dados: 20
Autores: Rabenevanana, M.W.; Rasoamazava, A.
Euchcuma cottollii is a species of red algae found 011 the littoral of the Toliara area (Madagascar). It occupies alarge area in the north of the Great Reef of Toliara facing the village of Amboaboaka. An ecological study and anevaluation of economic potential were made. The preliminary study of the phycocolloid of this species shows thatit has carrageenan yield of 50% and that its gel strength reaches 226 g cm-2. Seaweeds have long been used as soil fertilizers, as feed, in the human diet (Delepine, 19X9) and for production of phycocolloids. Mc Hugh ( 1993) estimated the world production of Euchcul1la (Rhodophyta) for the extraction of carrageenans to be about 66 000 tons per ycar.In Madagascar Gelidium madagascariense is extensively exploited...
Tipo: Book Section
Palavras-chave: Algae.
Ano: 1996
URL: http://hdl.handle.net/1834/494

La ciguatera : ¿el envenenamiento más antiguo de la historia americana?
Provedor de dados: 20
Autores: Baisre, J. A.
Tipo: Journal Contribution
Palavras-chave: Ciguatoxin.
Ano: 1996
URL: http://hdl.handle.net/1834/5049

A Review of the British Indian Ocean Territory Fisheries Conservation and Management Zone Tuna Fishery, 1991 - 1995
Provedor de dados: 20
Autores: Pearce, J.
This paper presents a review of the tuna fishery within the 200-mile Fisheries Conservation and Management Zone (FCMZ) of the British Indian Ocean Territory (BIOT) (Chagos Archipelago), over the period 1991 to 1995. Particular emphasis is placed on the most recent fishing seasons 1993-1994 and 1994-1995. Fishing inside the BIOT FCMZ has been dominated by distant-water fishing nations. Longliners from Japan, Korea and Taiwan have fished in the area around the Chagos Archipelago for many years. Purseseine vessels have operated in the area since the early 1980s. Some records of driftnetting also exist prior to the ban on driftnetting in 1992. The tuna fishery inside the zone is highly seasonal and highly variable. Longline vessels typically operate during two...
Tipo: Preprint
Palavras-chave: Tuna fisheries; Purse seines.
Ano: 1996
URL: http://hdl.handle.net/1834/497

Antimicrobial Activity of Extracts from Six Green Algae from Tanzania
Provedor de dados: 20
Autores: Mtolera, M.S.P.; Semesi, A.
Many algae species have been shown to have bactericidal or bacteriostatic substances (Glombitza, I979;Michaneck, 1979; Caccamese et al., 1980; Fenical &amp; Paul, 1984; Niang&amp; Hung, 1984). The antibacterialagents found in the algae include amino acids, terpenoids, phlorotannins, acrylic acid, phenoliccompounds, steroids, halogenated ketones and alkanes, cyclic polysulphides and fatty acids. In a large numberof marine algae antimicrobial activities are attributed to the presence of acrylic acid.
Tipo: Book Section
Palavras-chave: Algae resources; Bacteriology.
Ano: 1996
URL: http://hdl.handle.net/1834/469

Resources and Possibilities for Seaweed Exploitation in Madagascar
Provedor de dados: 20
Autores: Razanakoto, I.; Mollion, J.; Ratsimba, A.
Gelidium madagascariense has been exploited for over 10 years in the Fort Dauphin area, SE Madagascar. The quality and quantity of the stocks were recently evaluated. Since 1992Eucheuma denticulatum and E. striatum cultivation is under experimentation in the Tuleararea, SW Madagascar. The results obtained show that this exploitation is economically viable.Large scale cultivation has not yet begun, as harvesting the wild stocks has become more and more popular among till' local population. To make Cultivation more attractive than wild stockharvesting, experimental strain selection of E. striatum' was initiated in 1992. After one year of selection on a small scale basis, two E striatum strains with an improved average daily growth rate (3.09 and 2.72%) could...
Tipo: Book Section
Palavras-chave: Seaweed.
Ano: 1996
URL: http://hdl.handle.net/1834/493

A General formatting system for geo-referenced data. vol. 3: Standard subsets of GF3
Provedor de dados: 20
Tipo: Book
Palavras-chave: Oceanography; Geophysical data; Sea level; Sea level measurement; Wave analysis; Wave data; Wave height; Wave measurement; Sea surface; Drifting data buoys; Bathymetric data; Bathymetry; Mean sea level; Sea level; Http://aims.fao.org/aos/agrovoc/c_34115.
Ano: 1996
URL: http://hdl.handle.net/1834/2798

The Picoplankton Contribution to the Primary Production on the Northwest Coast of Madagascar
Provedor de dados: 20
Autores: Magazzu, G.; Ranaivoson, L.R.
The picoplankton contribution to the total primary production was evaluated at nine stations on the north western coast of Madagascar. Carbon assimilation expressed as mg C m-2 h-1 varied between 38-79% of the total primaryproduction. Biomass, expressed as chlorophyll a showed the same trend and varied between 34 and 66%. Thecontribution] of the surface picoplankton to total 14C uptake increased from the coast towards offshore incorrespondence with a strong salinity gradient. The sites being investigated are located within an area under intensive fisheries exploitation(Fig. I). This area is reputed to be rich in phytoplanktonic biomass. According to Angot(1967) and Sournia (1988a), the maximum values of biomass are observed during the wet season,...
Tipo: Book Section
Palavras-chave: Picoplankton.
Ano: 1996
URL: http://hdl.handle.net/1834/496

IGOSS Plan and Implementation Programme, 1996-2003
Provedor de dados: 20
Autores: IOC.
Tipo: Book
Palavras-chave: Oceanography; Sea level; Wave data; Data acquisition; Data converters; Data transmission; Buoys; Data collections; Data processing; Sea level; Data acquisition; Data processing; Http://aims.fao.org/aos/agrovoc/c_34115; Http://aims.fao.org/aos/agrovoc/c_37344; Http://aims.fao.org/aos/agrovoc/c_10289.
Ano: 1996
URL: http://hdl.handle.net/1834/2811

X. Manejo de alimentación en estanques y alimentos amigables con el ambiente
Provedor de dados: 20
Se realizaron bioensayos en agua estática para comparar los efectos de 1) la proteína dietaria y 2) el fósforo dietario sobre la acumulación de los nutrientes no asimilados en el agua de cultivo de poslarvas de Penaeus vannamei. Se evaluaron alimentos con 4 niveles de proteína dietaria (10, 18, 25 y 33%) y alimentos con 3 niveles de fósforo (0.4, 0.8 y 1.2%) con fosfato de sodio monobásico (NaH2PO4) como fuente inorgánica de fósforo. La acumulación de Nitrógeno inorgánico disuelto total (NIT) incrementó significativamente con el incremento en el nivel de proteína. El balance de masa de Nitrógeno constituyó el 87% de Nitrógeno que había entrado al medio de cultivo. La asimilación promedio de Nitrógeno en biomasa de camarón fue de 85, 71, 48 y 37% para los...
Tipo: Proceedings Paper
Palavras-chave: Aquaculture; Wastewater aquaculture; Water quality; Pond culture; Aquaculture; Water quality; Http://aims.fao.org/aos/agrovoc/c_550; Http://aims.fao.org/aos/agrovoc/c_16061.
Ano: 1996
URL: http://hdl.handle.net/1834/1892

The Economics of Fisheries Access Agreements: Perspectives on the EU-Senegal Case
Provedor de dados: 20
Autores: Johnstone, N.
Relations between coastal countries and fishing fleets from non-adjacent countries changed radically in the 1970s and early 1980s. This was primarily a consequence of the declaration of exclusive economic zones (EEZs) by many coastal states in the years leading up to the close of the negotiations of the United Nations Convention on the Law of the Sea (UNCLOS) in 1982. Most significantly, by recognizing the right of coastal states to determine how their waters were to be exploited, the UNCLOS provided a legal basis and economic motivation for the negotiation of access agreements between coastal states and distant water fishing fleets. This paper examines some of the economic issues which arise out of such agreements, particularly as they relate to relations...
Tipo: Working Paper
Palavras-chave: Fishery economics; International agreements.
Ano: 1996
URL: http://hdl.handle.net/1834/751

A review of the pollution of coastal waters in Nigeria
Provedor de dados: 20
Autores: Ajao, E.A.; Oyewo, E.O.; Unyimadu, J.P.
The coastal waters in Nigeria are described in relation to the general morphology, vegetation and beach Type along the 850km coastal.  The environmental sensitivity of the fragile Niger delta ecosystem is expressed by the numerous estuaries, rivers, creeks, lacustrine and inshore waters which support freshwater and brackish water mangrove swamps.  Ocean resources exploited from the Niger delta and adjacent Continental platform include oil, gas and fishes. The general hydrograph and superfial circulation are described against the background of human activities in coastal settlements and developmental pressures for resource utilisation giving rise to water pollution.  Micropollutants identified and measured so far include organic waste, trace heavy metals...
Tipo: Report
Palavras-chave: Marine pollution.
Ano: 1996
URL: http://hdl.handle.net/1834/2214

Provisional List of Documents
Provedor de dados: 20
Supported bij IOC/IODE
Tipo: Conference Material
Palavras-chave: Aquatic sciences; Oceanography.
Ano: 1996
URL: http://hdl.handle.net/1834/1593

An Annotated Bibliography of Available Literature regarding cetacean Interactions with Tuna Pure Seine Fisheries Outside of the eastern Tropical Pacific
Provedor de dados: 20
Autores: Edwards, E.F.; Donahue, M.
A review of currently available literature conceming interactions between tuna purse-seines and dolphins outside the eastern tropical Pacific Ocean (ETP) does not indicate any large, sustained, or widespread practice of setting purse seine nets around cetaceans for the purpose of catching tuna in any oceanic area other than in the ETP. While a number of individual reports exist of purse-seine sets made on cetaceans during the process of fishing for tuna in areas other than the ETP, there is no quantitative or even anecdotal indication that large-scale sustained directed fishing on cetaceans during tuna purse-seining occurs anywhere other than in the ETP. However, this lack of information should not be mistaken for conclusive evidence that such large-scale...
Tipo: Report
Palavras-chave: Tuna fisheries; Marine mammals.
Ano: 1996
URL: http://hdl.handle.net/1834/908

Influencia de la cantidad de captura en la selectividad de mallas diamante y cuadrada en redes de arrastre para la merluza común (Merluccius hubbsi) e implicancias sobre el potencial de descarte
Provedor de dados: 20
Autores: Ehrhardt, N.M.; Ercoli, R.; Garcia, J.C.; Bartozzetti, J.D.; Izzo, A.
The hake, Merluccius hubbsi, fishery is the most important amongst the argentinean demersal fisheries. Fishery management schemes have been adopted to control high discard levels of undersized fish historically observed in the fishery. Controls have consissted in establishing closed areas to fishing and implementation of minimum mesh size in bottom trawls to allow escapement of fish less than 33 cm in length. Offical fishery regulations establish a 120 mm inside codend mesh size in all hake traws. This work reports on the dynamics of hake selection in bottom trawls as a function of the relative abundance of the resource as well as loading levels imposed on the fishing gear. The analyses include the response to selection by square mesh panels attached to...
Tipo: Journal Contribution
Palavras-chave: Mesh selectivity; Trawl nets; Bottom trawls; Discards.
Ano: 1996
URL: http://hdl.handle.net/1834/1969

Campos de presión del Pacífico Tropical Suroriental en relación a la Oscilación del Sur: Los índices San Cristóbal/Guayaquil- Darwin
Provedor de dados: 20
Autores: Chavarría, J.; Bayot, B.
En este trabajo se realiza primeramente, un análisis detallado de la variabilidad estacional de los campos de presión en el Pacífico Tropical, como un indicativo de las "condiciones de normalidad". Se hace esta acotación puesto que, los componentes estacionales dependen básicamente de la radiación diferencial que recibe el planeta en sus Hemisferios Norte y Sur (al realizar la rotación anual), lo que exige una repuesta tanto en la atmósfera como en el oceáno. Al respecto, Philander (1990) expresó que el ciclo estacional no puede ser considerado como un agente pasivo, porque éste es la resultante de un acoplamiento oceáno-atmósfera forzado por radiación solar entrante, y que las respuestas a este tipo de forzamiento tienen mucho en común con aquellas que...
Tipo: Journal Contribution
Palavras-chave: Temporal variations; Seasonal variations; Pressure field.
Ano: 1996
URL: http://hdl.handle.net/1834/2247

Study of Eucheuma denticulatum and Eucheuma striatum Carrageenans Growing in T oliara, Madagascar
Provedor de dados: 20
Autores: Rasoamazava, A.
The phycocolloids of two species of red algae, Eucheuma denticulatum and Eucheuma striatum, were studied. Eucheuma denticu/atum was found to contain mainly iota carrageenan, while kappa carrageenan was the main component in Eucheuma striatum. The carrageenan content in E. denticu/atum varied from 50 to 55'Yo; in E. striatum it varied from 42 to 51 %. Considering these yields and the abundance of these species in the Toliara area, the two Eucheuma spp. Are attractive for industrial exploitation. Industrial exploitation of carrageenans started in the 1930s, and by 1989 the worldproduction was at 17000 tons (Amat, 1989). Among the species of sea weeds which areconsidered to have economic interests (Andriamampandry, 1976), Eucheuma denticu/atum (Burman)...
Tipo: Book Section
Palavras-chave: Algae.
Ano: 1996
URL: http://hdl.handle.net/1834/495

Contribución al conocimiento de los organismos perforadores de maderas en la Isla Baltra, Archipiélago de Galápagos, Ecuador
Provedor de dados: 20
Autores: Cruz, M.
En la Isla Baltra, entre abril a agosto/89 se pusieron once tipos de diferentes maderas expuestas al medio ambiente marino, habiéndose encontrado 7 organismos que degradaron la madera, de los cuales 6 son moluscos bivalvos: Bankia carinata, B. gouldi, Lyrodus medilobata, l. pedicellatus, Teredo bartschi, T. furcifera y un isópodo del género limnoria. De los Bivalvos perforadores, T. furcífera ha sido la especie más abundante y frecuente, seguida de L. pedicellatus. Las especies ovadas que se encontraron fueron: T. furcífera, L. pedicellatus, L. medilobata y T. bartschi, de las cuales T. furcífera se presentó como la más abundante y frecuente. la madera que presentó el mayor número de hembras con huevos fue el laurel. De los 11 tipos de maderas expuestos al...
Tipo: Journal Contribution
Palavras-chave: Marine molluscs; Fouling organisms; Islands; Wood; Islands; Wood; Http://aims.fao.org/aos/agrovoc/c_3962; Http://aims.fao.org/aos/agrovoc/c_8421.
Ano: 1996
URL: http://hdl.handle.net/1834/2193

Distribución de la densidad fitoplanctónica en una estación fija costera. La Libertad (Ecuador), durante 1989-1993
Provedor de dados: 20
Autores: Torres, G.
El presente trabajo pretende dar a conocer los resultados de la distribución estacional cuantitativa del fitoplancton (diatomeas y dinoflagelados), y su relación con masas de agua, dadas por temperatura y salinidad, desde 1989 hasta 1993 en una estación fija costera La Libertad, período en el cual se presentó un evento "El Niño" 1991-1992.
Tipo: Journal Contribution
Palavras-chave: Phytoplankton; Seasonal distribution; Water temperature; Oceanographic stations; Fixed stations; Biomass; Population density; Biomass; Phytoplankton; Water temperature; Population density; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_13344; Http://aims.fao.org/aos/agrovoc/c_16063; Http://aims.fao.org/aos/agrovoc/c_6112.
Ano: 1996
URL: http://hdl.handle.net/1834/2198

Spiny lobster fishery around the Mahe Plateau : Results and analysis presentation, November 1995 - January 1996
Provedor de dados: 20
Autores: Domingue, G.
This report reviews the spiny lobster fishery on the Mahe Plateau during the 1995-1996 fishing season. Following recommendation made after the 1994-1995 season the lobster fishing season was again re-opened for the fourth consecutive year. As in the 1994-1995 fishing season the 1995-1996 season was opened over a three months period. The monitoring programme set up in 1992 was continued to gather more information on the spiny lobster stock so as to improve the management of this resource around the Mahe Plateau. A total of 26 applications were made for licenses to fish for lobster, however, only 23 applicants were granted licenses after paying the required license fee. 17 licenses were bought by fishermen from Mahe, 4 by fishermen from La Digue and 2 by...
Tipo: Report
Palavras-chave: 102.40 (8D).
Ano: 1996
URL: http://hdl.handle.net/1834/2321

Características químicas de las masas de agua costeras ecuatorianas en estaciones fijas: Península de Santa Elena y Puerto de Manta-Ecuador. 1990-1995
Provedor de dados: 20
Autores: Valencia, M.; Rodríguez de Morán, A.
El objeto de obtener información mensual de las características Físico-Químico-Biológicas de la columna de agua y establecer las condiciones oceanográficas de la zona durante los años en que no se presenta el evento y, en base de éstas, detectar los cambios o variaciones que se producen cuando aparece un proceso de esta naturaleza, a fin de, eventualmente, coadyuvar a la realización de predicciones, a corto o mediano plazo de la aparición de "EL NIÑO".
Tipo: Journal Contribution
Palavras-chave: Chemical oceanography; Water masses; Chemical oceanography; Http://aims.fao.org/aos/agrovoc/c_1516.
Ano: 1996
URL: http://hdl.handle.net/1834/2183

El Niño
Provedor de dados: 20
Autores: Zambrano, E.
En el presente trabajo se explican ciertos conceptos frecuentemente empleados por oceanógrafos y meteorólogos en sus investigaciones relativas a El Niño. Se hace una breve revisión histórica de la evolución del nombre de este evento de interacción océano-atmósfera y se explica el probable mecanismo de formación del mismo, así como los esfuerzos que a nivel nacional e internacional se llevan a cabo, con el propósito de entender y llegar a pronosticar el evento de El Niño.
Tipo: Journal Contribution
Palavras-chave: El Nino phenomena; Historical account; Ocean-atmosphere system.
Ano: 1996
URL: http://hdl.handle.net/1834/2225

Distribución, evaluación acustica y estructura poblacional de la anchoíta. Resultados de las campañas del año 1993
Provedor de dados: 20
Autores: Hansen, J.E.; Madirolas, A.
Two pelagic surveys to study were carried out during 1993. Those surveys covered the regions inhabited by either the bonaerensis stock in october (34-41°S)and the patagonian stock in November - December (41-45°30'S). Pre-stratified random sampling designs, including two random steps to allocate the transects, were adopted to perform the acoustic sampling by echo integration. A midwater trawl net (9-16 m vertical opening, 10 mm mesh-sized codend)was used to collect fish samples. The biomass of the northern stock was acoustically estimated to be about 1,45 million tons, whereas that of the southern stock was almost 740,000 t. Young anchovies, up to two-year old, allow for most of theose abundance values within each stock. The arrays of individuals at the sea...
Tipo: Journal Contribution
Palavras-chave: Pelagic fisheries; Geographical distribution; Biomass; Mortality; Echo surveys; Stock assessment; Geographical distribution; Biomass; Stock assessment; Pelagic fisheries; Mortality; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_926; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_5659; Http://aims.fao.org/aos/agrovoc/c_4945.
Ano: 1996
URL: http://hdl.handle.net/1834/1955

Nigeria institute for oceanogaphy and marine research annual report 1996.
Provedor de dados: 20
Autores: Akpati, B.N.
The first phase of a coastal fisheries survey initiated in 1991, with the assistance of the World Bank, was completed in March 1996.  The survey found that several inherent parameters are critical to all the main fisheries and these factors severally affect fishing operations.  These critical factors include currents as they moderate fish movements and behaviour, lunar cycle, seasonal disruptions, inappropriate improvisation, coastal perturbations, scarcity of fuel wood, menace by trawlers, piracy and increasing costs.  Appropriate policies and strategies to redress these critical factors and other disincentives should contribute to evitalising and sustaining small-scale coastal and marine fisheries in Nigeria. The relocation of the institute’s fish farm...
Tipo: Working Paper
Palavras-chave: Marine sciences; Marine resources; Marine resources; Marine sciences; Http://aims.fao.org/aos/agrovoc/c_28012; Http://aims.fao.org/aos/agrovoc/c_4613.
Ano: 1996
URL: http://hdl.handle.net/1834/2480

IOC-EU-BSH-NOAA-(WDC-A) International Workshop on Oceanographic Biological and Chemical Data Management, Hamburg, Germany 20-23 May 1996.
Provedor de dados: 20
A knowledge of the global distribution of biological and chemical parameters pertinent to the ocean carbon system is critical to understanding the role of the world ocean as part of the earth's climate system. Global Change involves a diverse and complex set of scientific problems related to the biology and chemistry of our planet, as well as its physics. By compiling and archiving available biological, physical and chemical data, we can further our understanding of oceanographic processes (e.g., the variability in ocean productivity, fluxes between the ocean and atmosphere, oceanic biodiversity) and better design programmes for pollution monitoring and remediation, and coastal and fisheries resource management. In addition, to study Global Change issues,...
Tipo: Report
Palavras-chave: Biological parameters; Chemical parameters.
Ano: 1996
URL: http://hdl.handle.net/1834/5645

IODE Group of Experts on Marine Information Management (GEMIM), Fifth session
Provedor de dados: 20
Supported by IOC/IODE
Tipo: Report
Ano: 1996
URL: http://hdl.handle.net/1834/3042

Description de la pêcherie démersale céphalopodière en Mauritanie (1990 – 1992)
Provedor de dados: 20
Autores: Inejih, C.A.O.
Résumé : Le présent article donne une description  de l’évolution des paramètres descripteurs de la pêcherie de céphalopodes. Il utilise les statistiques de pêche du CNROP. Les paramètres décrits sont l’effort (nombre de licences, caractéristiques physiques des bateaux, jours de pêche), les captures et les prises par unité d’effort. Les débarquements totaux ont enregistré une hausse atteignant 42000 tonnes en 1992. Cette hausse est due à celle des rendements importants observés pour le poulpe ; ceux des poissons ont diminué continuellement depuis 1990, notamment chez les glaciers. L’effort, en jour de pêche, a enregistré une baisse progressive pour les congélateurs. Par contre,  il a presque doublé de 1990 à 1991 chez les glaciers. Les deux modes de...
Tipo: Journal Contribution
Palavras-chave: Demersal fisheries; Fishing effort; Cephalopod fisheries; Octopus fisheries.
Ano: 1996
URL: http://hdl.handle.net/1834/239

Towards Integrated Management and Sustainable Development of Kenya's Coast
Provedor de dados: 20
Tipo: Report
Palavras-chave: Integrated coastal zone management; Sustainable development.
Ano: 1996
URL: http://hdl.handle.net/1834/984

Evaluación acústica de recursos pesqueros pelágicos frente a la costa sur ecuatoriana durante septiembre de 1995
Provedor de dados: 20
Autores: Chalen, X.; Vicuña, H.
Nineteen lightday rectangular transects were made 16 in the area of the Gulf of Guayaquil (Ecuador), and 3 in an oceanic area at the west of the Gulf of Guayaquil, this was the second part of research cruise, oriented to the evaluation of the small pelagic fish stocks, it was made between september 14th and 27th, 1995. The SIMRAD EK-500 acoustic system was used, installed on board of the National Research Institute (INP) R/V Tohallí. At the same time, people from the INP's Fisheries Observer Program were on four private enterprises vessels, while they were fishing in the same Gulf's area. They also made the biological sample of the commercial catch, for future relation with the results from the acoustic evaluation. The V/R Tohallí principal catch was jack...
Tipo: Journal Contribution
Palavras-chave: Geographical distribution; Abundance; Demersal fisheries; Fishery resources; Continental shelves; Echo surveys; Geographical distribution; Demersal fisheries; Fishery resources; Continental shelves; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_2173; Http://aims.fao.org/aos/agrovoc/c_2942; Http://aims.fao.org/aos/agrovoc/c_32413.
Ano: 1996
URL: http://hdl.handle.net/1834/2962

Seychelles Fishing Authority: Annual Report 1995
Provedor de dados: 20
Tipo: Report
Palavras-chave: Annual reports; Tuna fisheries; Artisanal fishing; Fishery organizations.
Ano: 1996
URL: http://hdl.handle.net/1834/5066

Circuits de distribution - commercialisation du poisson dans le sous secteur de la pêche artisanale en Mauritanie
Provedor de dados: 20
Autores: Moussa, A; Nguer, A.T.; Thiam, I.
Résumé : Les résultats obtenus dans le cadre de ce travail ont permis de montrer que le produit de la pêche artisanale en Mauritanie est surtout commercialisé en frais. La transformation des produits est faite selon deux principales méthodes, le guédj (fermenté - séché) et le salé séché. Au niveau de la distribution – commercialisation, il existe deux types de circuits : les circuits courts (distribution plage – ville) et les circuits longs (distribution entre les villes). Il est à noter que la commercialisation est handicapée par le mauvais état des routes, le coût exorbitant du transport et le manque de moyens de conservation du produit frais.
Tipo: Journal Contribution
Palavras-chave: Artisanal fishing; Commercial fishing; Small scale fishing.
Ano: 1996
URL: http://hdl.handle.net/1834/231

Relations biométriques de quelques espèces de crustacés pêchées en Mauritanie.
Provedor de dados: 20
Autores: Diop, M.
Note Scientifique
Tipo: Other
Palavras-chave: Biometrics; Crustaceans; Lobster culture; Crab fisheries; Shrimp culture.
Ano: 1996
URL: http://hdl.handle.net/1834/240

Status of Exchange of Data and Information between the IOC Regional Programmes  and the IODE System
Provedor de dados: 20
The regional subsidiary bodies of the IOC have been developed since the middle 1970s and in particular during the 1980s to foster intergovernmental co-operation in marine sciences. The basic ideas are that regional co-operation including that of marine science is a necessity because of the dynamics of the ocean and the marine environment (as well as its resources); because a regional perspective helps define priorities and priority needs; because of the pooling efforts and because it fosters regional and national development and supports a multi-lateral economy; because to address many marine problems on a regional rather than a national or global basis is more effective in view of the dynamical properties of the ocean environment and its interactions with...
Tipo: Report
Palavras-chave: Oceanographic data; Regional planning.
Ano: 1996
URL: http://hdl.handle.net/1834/1605

Influence of purse-seine fisheries on longline fisheries for yellowfin tuna (Thunnus albacares) in the western Indian Ocean
Provedor de dados: 20
Autores: Nishida, T.
An examination is made of the possible impact of purse seine fisheries on the longline fisheries for the Western Indian Ocean yellowfin tuna (Thunnus albacares) stock. Past research works on fisheries interactions are reviewed and then descriptive (spatial and temporal) analyses are attempted for basic fisheries statistics (catch, CPUE and size). It was discovered that the general trends of longline CPUE are more or less constant in the whole purse seine fishing ground before and after purse seining started, while those in the heavy purse seine fishing grounds show a moderate decrease. This moderate decrease is discussed for 2 cases: the long-term situation and the immediate situation.
Tipo: Proceedings Paper
Palavras-chave: Tuna fisheries Thunnus albacares Purse seining Longlining Catch/effort ISW; West Indian Ocean.
Ano: 1996
URL: http://hdl.handle.net/1834/17

Marine magnetic data processing in equatorial regions off Ghana
Provedor de dados: 20
Autores: Buchanan, S.K; Scrutton, R,A; Edwards, R,A; Whitmarsh, R,B.
Total field magnetic values recorded during a survey be RRS Charles Darwin off Ghana yielded large track-crossover errors of up to 120 nT (RMS value of 58.7 nT), which masked the weak magnetic anomalies in this equatorial region.  The heading effect of the ship's magnetic field and strong diurnal variation in the Earth's field are likely causes of the errors. A heading effect experiment shows differences of up to 30 nT for Charles Darwin on different headings, which have been corrected for.  The diurnal variation has been calculated by using the magnetic field observations themselves, because observatories are either too distant or were inoperative at the time of the survey.  A method that uses the anomalies corrected for heading effect and differences at...
Tipo: Journal Contribution
Palavras-chave: Diurnal variations; Magnetic fields.
Ano: 1996
URL: http://hdl.handle.net/1834/4070

Pleuronectiformes de importancia comercial del Atlántico Sudoccidental, entre los 34°30' y 55°S. Distribución y consideraciones sobre su pesca
Provedor de dados: 20
Autores: Fabré, N.N.; Diaz de Astarloa, J.M.
Catch records of flatfishes obtained in exploratory cruises and in the existing literature in the geographical area between 34°S and 55°S in the Western SOuth Atlantic were analyzed to elaborate maps of the distribution of the most common flatfish species in this area. Data from commercial fleet landings at Mar del Plata Harbor were used to analyze the distribution and areas of resource concentration. The flatfish most frequently found in this study area belong to three families: 1. Paralichthidae, with the species: Thysanopsetta naresi, Paralichthys orbignyanus, Paralichthys patagonicus, Paralichthys isoceles, Xystreurys rasile. 2.-Pleuronectidae, with the species: Oncopterus darwini. 3. Achiropsettidae with: Mancopsetta maculata, Mancopsetta milfordi,...
Tipo: Journal Contribution
Palavras-chave: Geographical distribution; Fishing grounds; Flatfish fisheries; Abundance; Geographical distribution; Fishing grounds; Http://aims.fao.org/aos/agrovoc/c_5083; Http://aims.fao.org/aos/agrovoc/c_2947.
Ano: 1996
URL: http://hdl.handle.net/1834/1957

Bioensayo de toxicidad (CL50) del dispersante de petróleo BP 1100 WD, con fitoplancton marino (Tetraselmis sp)
Provedor de dados: 20
Autores: Villamar, F.
El presente estudio se considera de carácter preliminar especialmente en lo referente al cálculo de la concentración media letal (CL50), de esta manera se evalúa el grado de toxicidad del dispersante de petróleo BP 1100 WD considerado como agente contaminante cuando se utiliza para dispersar manchas de petróleo regado en el mar. Con esta información se establece el impacto potencial que puede producir este dispersante en el medio ambiente marino.
Tipo: Journal Contribution
Palavras-chave: Bioassays; Toxicity; Phytoplankton; Dispersants; Pollution indicators; Toxicity; Phytoplankton; Dispersants.
Ano: 1996
URL: http://hdl.handle.net/1834/2191

Seychelles tuna bulletin : second quarter 1996
Provedor de dados: 20
Data used to generate the tables and figures presented here are based on daily catch and effort forms (logbooks) returned from fishing vessels which are licensed to fish in the Seychelles EEZ. Sometimes there is a delay in these being received at SFA, especially during and just after the second quarter of the year when most vessels are fishing in the Mozambique Channel. Readers should be aware that many of the figures presented here (especially the most recent) are subject to revision (usually upwards) as more data become available. The date upon which the SFA database was closed prior to the generation of the statistical tables is shown at the head of each table. Purse seiners Principal Points - The total purse seine tuna catch for the Western Indian...
Tipo: Other
Palavras-chave: Purse seiners; Catch statistics; Tuna fisheries.
Ano: 1996
URL: http://hdl.handle.net/1834/5190

Incentives affecting biodiversity conservation and sustainable use: the case of land use options in Namibia
Provedor de dados: 20
Autores: Ashley, C.
Namibia is the most arid country south of the Sahara, with an economy fundamentally reliant on natural resources. The most scarce resource is water, and the main economic sectors are mining, fishing, agriculture, and wildlife-based tourism. The majority of the population live in rural areas, dependent on a wide range of natural resources. Sustainable use and conservation of biodiversity are therefore essential for the future. The question is how to achieve it? One key strategy is to assess -- and where necessary redesign -- economic incentives affecting use of natural resources. This paper illustrates the role of economic incentives in influencing the use of land-based renewable natural resources (RNR). It identify incentives which are being, or need to...
Tipo: Other
Palavras-chave: Land use; Biodiversity; Conservation.
Ano: 1996
URL: http://hdl.handle.net/1834/537

Genética bioquímica poblacional del delfín Tonina Tursiops truncatus (Montagu, 1821) de Cuba.
Provedor de dados: 20
Autores: Pérez-Cao, H.
Existe un grado de diferenciación entre las 2 poblaciones analizadas, así mismo hay una tendencia no significativa hacia un exceso de  heterocigóticos en la población total.
Tipo: Theses and Dissertations
Palavras-chave: Population genetics; Biochemistry; Marine mammals.
Ano: 1996
URL: http://hdl.handle.net/1834/4595

Proceedings of the Asian Pigeonpea Pathologists Group Meeting and Monitoring Tour
Provedor de dados: 30
Autores: M.V.
Palavras-chave: Pigeonpeas; Grain legumes; Global positioning systems; Genotypes; Fungi; Replication; Pathogens; Experimental design; Disease resistance; Chickpeas.
Ano: 1996
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4189

Groundnut Elite Germplasm ICGV 86699
Provedor de dados: 30
Palavras-chave: Necrosis; Groundnuts; Segregation; Genotypes; Tolerance; Germplasm; Fungi; Animal developmental stages; Diseases; Breeds (animals).
Ano: 1996
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3873

Summary proceedings of the ICRISAT/NARS workshop on methods and joint impact targets in Western and Central Africa
Provedor de dados: 30
Autores: J.
Palavras-chave: Pigeonpeas; Millets; Protocols; Sorghum; Nutrient management; Cowpeas; Policies; Seed production; Investment; Technology.
Ano: 1996
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4188

Achieving high groundnut yields
Provedor de dados: 30
Autores: C.L.L.
Palavras-chave: Groundnuts; Electrophoresis; Leaf area; Oilseeds; Area; Genes; Tropical zones; Seasons; Fungi; Insecticides.
Ano: 1996
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4186

Groundnut elite germplasm ICGV 86388
Provedor de dados: 30
Palavras-chave: Necrosis; Genotypes; Germplasm; Humus; Breeds (animals); Plant extracts; Groundnuts; Wet season; Yields; Seasons.
Ano: 1996
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3874

Groundnut Varieties: Kouklia (ICGV 89214), Nikoklia (ICGV 88438), and Gigas (ICGV 91098)
Provedor de dados: 30
Palavras-chave: Humus; Breeds (animals); Plant habit; Liming; Cropping systems; Groundnuts; Iron; Tolerance; Summer; Environment.
Ano: 1996
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3878

Groundnut Elite Germplasm ICGVs 86155, 86156, 86158, 87378, and 87921
Provedor de dados: 30
Palavras-chave: Viruses; Genotypes; Poultry equipment; Germplasm; Curing (processing); Wet season; Breeds (animals); Dormancy; Seasons; Proteins.
Ano: 1996
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3877

Summary proceedings of the fourth ICRISAT Regional Groundnut Meeting for Western and Central Africa
Provedor de dados: 30
Autores: F.
Palavras-chave: Mycotoxins; Groundnuts; Breeds (animals); Agronomy; Yield losses; Fungicides; Genotypes; Continuous cropping; Postharvest technology.
Ano: 1996
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4190

Groundnut Elite Germplasm ICGV 87165
Provedor de dados: 30
Palavras-chave: Genotypes; Animal developmental stages; Location; Germplasm; Seasons; Groundnuts; Diseases; Tolerance; Breeds (animals); Electrophoresis.
Ano: 1996
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3875

Research and development of hybrid pigeonpea
Provedor de dados: 30
Autores: K.B.
Palavras-chave: Pigeonpeas; Hybrids; Heterosis; Seed production; Self pollination; Genes; Cytoplasm; Backcrossing; Segregation; Grain legumes.
Ano: 1996
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4191

Returns to research and diffusion investments on wilt resistance in pigeonpea
Provedor de dados: 30
Autores: M.C.S.
Palavras-chave: Pigeonpeas; Diffusion; Sowing rates; Variable costs; Seed production; Land management; Genotypes; Agricultural statistics; Budgets; Sampling.
Ano: 1996
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4192

CLAN collaborative research in Asia: Needs and Opportunities
Provedor de dados: 30
Autores: C.L.L.
Palavras-chave: Pigeonpeas; Chickpeas; Germplasm; Groundnuts; On-farm research; Breeds (animals); Grain legumes; Sorghum; Legumes; Lentils.
Ano: 1996
URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4187

The effect of different levels and sources of dietary phosphatidylcholine on the growth, survival, stress resistance, and fatty acid composition of postlarval &lt;i&gt;Penaeus vannamei&lt;/i&gt;
Provedor de dados: 27
Autores: Coutteau, P.; Camara, M.R.; Sorgeloos, P.
The effect of dietary purified phosphatidylcholine (PC) was evaluated on growth, survival, resistance to osmotic shock, and fatty acid composition of early postlarval &lt;i&gt;Penaeus vannamei&lt;/i&gt; (0.3 mg initial dry weight) fed semi-purified diets. PC sources used were purified soybean PC (SPC, 95% purity), chicken-egg PC (ECP, 94% purity), and de-oiled soybean lecithin (DSL, 23% PC). The growth response of shrimp fed 1.5% of SPC or 6.5% of DSL was significantly greater than that of shrimp fed a PC-deficient diet, whereas no effect was observed either on survival or stress resistance. Further increasing the dietary level of soybean PC from 1.5% to 3.3% resulted in a significant decrease of the shrimp weight gain. Shrimp receiving 1.5% of PC,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Penaeus vannamei.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2932

Mode of infection and spread of &lt;i&gt;Vibrio anguillarum&lt;/i&gt; in turbot &lt;i&gt;Scophthalmus maximus&lt;/i&gt; larvae after oral challenge through life feed
Provedor de dados: 27
Autores: Grisez, L.; Chair, M.; Sorgeloos, P.; Ollevier, F.P.
The infection route of the marine fish pathogen &lt;i&gt;Vibrio anguillarum&lt;/i&gt; was studied after oral challenge of the juvenile turbot &lt;i&gt;Scophthalmus maximus&lt;/i&gt; L. through a life feed. &lt;i&gt;Artemia&lt;/i&gt; nauplii were incubated in a suspension of &lt;i&gt;V. anguillarum&lt;/i&gt; cells, and subsequently fed twice to the fish. All challenged fish died within 4d after the first challenge, while no mortality occurred in the non-challenged controls. The results of an immunohistochemical examination of the sectioned fish samples clearly demonstrated that &lt;i&gt;V. anguillarum&lt;/i&gt; cells were ingested by the &lt;i&gt;Artemia&lt;/i&gt; and that the latter were ingested by the fish. Bacteria were released from the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Scophthalmus maximus (Linneaus; 1758) Vibrio anguillarum.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/299074.pdf

Intensive marine fish farming in Europe: a state of the art
Provedor de dados: 27
Autores: Sorgeloos, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3107

Annual variability in the seasonal cycles of chlorophyll, nutrients and zooplankton on the North-West European continental shelf
Provedor de dados: 27
Autores: Bot, P.V.M.; Van Raaphorst, W.; Batten, S.; Laane, R.W.P.M.; Philippart, K.; Radach, G.; Frohse, A.; Schultz, H.; Van den Eynde, D.; Colijn, F.
Seasonal cycles of salinity, nutrients, chlorophyll and zooplankton at 8 locations on the West-European shelf were analysed with respect to their timing and magnitude in the period 1980-1984. A late spring bloom with low chlorophyll values (2-4 mg.m-³) is observed in the Irish Sea, off the Scottish east coast and the Channel entrance. An early spring bloom and relatively high chlorophyll values (7-12 mg.m-³) are found in the southern Bight and the Skagerrak, whereas a late spring bloom with high chlorophyll concentrations (24 mg.m-³) is found along the Dutch and Belgian coast. In contrast to the other regions, the peak of the phytoplankton cycle in the German Bight (Helgoland) occurs in the summer period instead of the spring period. The peak in the yearly...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/256556.pdf

Flow in and on the Zeebrugge breakwater: a comparison between prototype measurements and physical model tests
Provedor de dados: 27
Autores: Schütter, F.; Frigaard, P.; Eelen, B.; Troch, P.; De Rouck, J.; Lewis, A.W.; Murphy, J.; Kingston, K.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8541

Faunistic and anatomical data on the Antarctic Opisthobranchia (Mollusca, Gastropoda) in the collections of the Royal Belgian Institute of Natural Sciences
Provedor de dados: 27
Autores: Troncoso, J.S.; García, F.J.; Backeljau, T.; Urgorri, V.
Five opisthobranch species were collected during the Belgian and Belgian-Dutch Antarctica expeditions to the Riiser-Larsen Sea, the Princess Ragnhild Coast ("Mission Iris") (1960-1967) and Admiralty Bay (King George Island) (1987-1991). These species include &lt;i&gt;Philine alata&lt;/i&gt; Thiele, 1912, &lt;i&gt;Bathyberthella antarctica&lt;/i&gt; Willan &amp; Bertsch, 1987, &lt;i&gt;Notaeolidia gigas&lt;/i&gt; Eliot, 1905, &lt;i&gt;Aegires (Anaegires) albus&lt;/i&gt; Thiele, 1912 and &lt;i&gt;Austrodoris kerguelenensis&lt;/i&gt; Bergh, 1884. This material is deposited in the Royal Belgian Institute of Natural Sciences. The present contribution provides anatomical and faunistic data on this collection and extends the distributional range of several species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological sampling Cruise reports Marine molluscs Museum collections Taxonomy Aegires albus Bathyberthella antarctica Doris kerguelenensis Notaeolidia gigas Philine alata PSW; Antarctica; Dronning Maud Land; Princess Ragn PSW; Antarctica; South Shetland I.; King George I.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303495.pdf

Supplementation of lipid emulsions to algal diets in the hatchery rearing of bivalves
Provedor de dados: 27
Autores: Coutteau, P.; Caers, M.; Curé, K.; Gajardo, G.
The success of hatchery production of bivalves remains highly unpredictable and mortalities are often attributed to deficiencies in certain nutritionally important components. Several studies have implicated the importance of lipids, in particular triglycerides, in the early life stages as a source of energy and essential fatty acids. Experimental diets used so far in bivalve nutrition studies are either heavily polluting the water or too complex to prepare on a regular basis in a hatchery. Self emulsifying concentrates of marine oils are off-the-shell lipid supplements that may be acceptable for bivalves. A series of studies were performed with different species and life stages to evaluate the potential use of these lipid emulsions as a supplement for...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2928

A reappraisal of the systematics of the Monocelididae (Platyhelminthes, Proseriata): inferences from rDNA sequences
Provedor de dados: 27
Autores: Litvaitis, M.K.; Curini-Galletti, M.C.; Martens, P.M.; Kocher, T.D.
The current classification system for the Monocelididae which is based on the character "presence or absence of an accessory prostatoid organ" divides the family into two subfamilies, namely the Minoninae and the Monocelididinae. However, other characters relating to the structure of the male copulatory bulb and to karyotypes do not support this division. Monocelidid male copulatory bulbs can be either of the simplex or the duplex-type, and if this character is mapped onto the current classification, then both subfamilies contain species with either type of copulatory bulb. We therefore decided to construct an independent phylogeny for the Monocelididae using nucleotide-sequence data of the gene coding for the 26/28S rDNA. Distance and parsimony-based...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Taxonomy; Monocelididae.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3015

Drug assimilation in the tissue of European sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) fry delivered orally through bioencapsulation
Provedor de dados: 27
Autores: Gapasin, R.S.J.; Nelis, H.; Chair, M.; Sorgeloos, P.
Assimilation levels of the antibacterials trimethoprim (TMP) and sulfamethoxazole (SMX) in sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) fry tissue administered orally were investigated. A 1:5 TMP and SMX combination incorporated in oil emulsion (Selco) at 20% and 40% concentrations (w/w) were bioencapsulated in &lt;i&gt;Artemia&lt;/i&gt; (Instar II) nauplii. Chemotherapeutics-loaded ('medicated') nauplii were fed to the sea bass fry and drug concentration in the tissue were analysed by high-performance liquid chromatography (HPLC). Fish fed 40% 'medicated' &lt;i&gt;Artemia&lt;/i&gt; assimilated significantly higher levels of chemotherapeutics compared with those fed 20% 'medicated' &lt;i&gt;Artemia&lt;/i&gt; . Chemotherapeutics given at 40% reached...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dicentrarchus labrax (Linnaeus; 1758) [Bass].
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2964

The new geological map of Northwestern Flanders, Southern Bight North Sea: techniques and methodology
Provedor de dados: 27
Autores: Jacobs, P.; De Ceukelaire, M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geological maps Methodology ANE; North Sea; Southern Bight.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2991

Redescription and morphological variability of &lt;i&gt;Darwinula stevensoni&lt;/i&gt; (Brady &amp; Robertson, 1870) (Crustacea, Ostracoda)
Provedor de dados: 27
Autores: Rossetti, G.; Martens, K.
The species &lt;i&gt;Darwinula stevensoni&lt;/i&gt; is extensively redescribed. Morphological variability of both valves and soft parts is assessed in several geographical and climatically distant populations and is found to be minimal or non-existant. Only size significantly varies between populations and this can be attributed to the differences in ambient temperatures during the larval development. Number and shape of muscle scars also vary, but this both within and between populations. Valve shape and chaetotaxy of limbs are remarkably constant. One female from an Italian population has aberrant Mx2-palps, but this specimen is considered a teratological case. Earlier records of males of &lt;i&gt;D. stevensoni&lt;/i&gt; and the taxonomic position of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Animal morphology; Taxonomy; Darwinula stevensoni; Ostracoda.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303568.pdf

Modeling &lt;sup&gt;210&lt;/sup&gt;Pb-derived mixing activity in ocean margin sediments: diffusive versus nonlocal mixing
Provedor de dados: 27
Autores: Soetaert, K.; Herman, P.M.J.; Middelburg, J.J.; Heip, C.H.R.; deStigter, H.S.; van Weering, T.C.E.; Epping, E.; Helder, W.
The influence of sediment mixing on activity versus depth profiles of the radionuclide &lt;sup&gt;210&lt;/sup&gt;Pb in the upper 20 cm of the sediments has been investigated along a depth transect (208 m-4500 m, 17 stations) in the OMEX study area (Goban Spur, NE Atlantic Ocean). A hierarchical family of bioturbation/nonlocal exchange models was derived. Each member of the hierarchy includes all processes of the previous model, and adds a one- or two-parameter process. The significance of the additional parameters is tested using a one-tailed &lt;i&gt;F&lt;/i&gt;-test. It was found that (1) in five cases there is a significant improvement when direct injection of part of the flux into deeper sediment layers (nonlocal exchange) is added to the diffusive...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chemical kinetics Continental margins Diffusion Lead 210 Modelling Sediment mixing ANE; Goban Spur.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8450

The metabolic status of diapause embryos of &lt;i&gt;Artemia franciscana&lt;/i&gt; (SFB)
Provedor de dados: 27
Autores: Clegg, J.S.; Drinkwater, L.E.; Sorgeloos, P.
The brine shrimp &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; franciscana&lt;/i&gt; is widely used in aquaculture and basic research in areas ranging from molecular biology to evolution and ecology. A key of its life history involves the production of encysted embryos whose development is halted (enters diapause) at the gastrula stage. These shelled embryos are released into the aqueous environment where diapause continues until terminated by suitable conditions that produce an "activated embryo", which then can resume development when conditions permit. Very little is known about the metabolism of diapause embryos, in contrast to activated embryos, which have been studied extensively. We have examined selected features of metabolism in diapause embryos produced in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diapause; Embryos; Metabolism; Artemia franciscana.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2924

The genus &lt;i&gt;Batzella&lt;/i&gt;: a chemosystematic problem
Provedor de dados: 27
Autores: Van Soest, R.W.M.; Braekman, J.C.; Faulkner, D.J.; Hajdu, E.; Harper, M.K.; Vacelet, J.
Biogenetically unrelated cyclic guanidine alkaloids and pyrroloquinoline alkaloids have been reported from sponges assigned to the genus &lt;i&gt;Batzella&lt;/i&gt;. These sponges have been assigned to this genus because of their possession of a simple complement of thin strongyles in irregular plumoreticulate arrangement. Cyclic guanidine alkaloids were first reported from an alleged axinellid species from the Caribbean, &lt;i&gt;Ptilocaulis&lt;/i&gt; aff. &lt;i&gt;P. spiculifer&lt;/i&gt;, and subsequently from a second Carribean specimen identified as &lt;i&gt;Ptilocaulis spiculifer&lt;/i&gt; and at the same time from a Red Sea poecilosclerid, &lt;i&gt;Hemimycale&lt;/i&gt; sp. Closely related compounds were described from a Caribbean specimen identified...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alkaloids; Chemotaxonomy; Batzella; Poecilosclerida.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303650.pdf

Resource competition between macrobenthic epifauna in a Kenyan &lt;i&gt;Avicennia marina&lt;/i&gt; mangrove forest
Provedor de dados: 27
Autores: Schrijvers, J.; Fermon, H.; Vincx, M.
A cage exclusion experiment was used to examine the interaction between the epibenthos (permanent and visiting) and the macroinfauna of a high intertidal Kenyan &lt;i&gt;Avicennia marina&lt;/i&gt; mangrove sediment. Densities of Oligochaeta (families Tubificidae and Enchytraeidae), Amphipoda, Insecta larvae, Polychaeta and macro-Nematoda, and a broad range of environmental factors were followed over 5 mo of caging. A significant increase of amphipod and insect larvae densities in the cages indicated a positive exclusion effect, while no such effect was observed for oligochaetes (Tubificidae in particular), polychaetes or macronematodes. Resource competitive interactions were a plausible explanation for the status of the amphipod community. This was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Avicennia marina [grey mangrove].
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/316204.pdf

Description of &lt;i&gt;Periclimenes wirtzi&lt;/i&gt; sp. nov., a new pontoniine shrimp from Madeira and the Azores, with a checklist of Eastern Atlantic and Mediterranean Pontoniinae (Crustacea, Decapoda, Caridea)
Provedor de dados: 27
Autores: d'Udekem d'Acoz, C.
A new &lt;i&gt;Periclimens&lt;/i&gt; from Madeira and the Azores, &lt;i&gt;P. wirtzi&lt;/i&gt; sp. nov. is described. This pontoniine shrimp has an extremely long and unusually narrow rostrum with only a few teeth on the distal half of its dorsal border. It was found in large numbers on black corals of the genus &lt;i&gt;Anthipathes&lt;/i&gt; at 29-40m depth. A provisional checklist of Eastern Atlantic and Mediterranean Pontoniinae is given.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Check lists New species Taxonomy Caridea [Shrimps] Periclimenes wirtzi MED; Eastern Mediterranean.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303545.pdf

Endoparasitic helminths of the whitespotted rabbitfish (&lt;i&gt;Siganus sutor&lt;/i&gt; (Valenciennes, 1835)) of the Kenyan coast: distribution within the host population and microhabitat use
Provedor de dados: 27
Autores: Geets, A.; Ollevier, F.P.
The parasitic fauna of the alimentary tract of adult whitespotted rabbitfish, &lt;i&gt;Siganus sutor&lt;/i&gt;, sampled in December 1990 at the Kenyan coast, was investigated. Five endoparasites were found: the digenean trematodes &lt;i&gt;Opisthogonoporoides hanumanthai, Gyliauchen papillatus&lt;/i&gt; and &lt;i&gt;Hexangium sigani&lt;/i&gt;, the acanthocephalan &lt;i&gt;Sclerocollum rubrimaris&lt;/i&gt; and the nematode &lt;i&gt;Procammalanus elatensis&lt;/i&gt;. No uninfected fish, nor single species infections occurred. Parasite population data showed very high prevalences for all endoparasites, ranging from 68.18% to 100%. &lt;i&gt;G. papillatus&lt;/i&gt; occurred with the highest mean intensity, 201.68 ± 12.54 parasites per infected fish. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Siganus sutor [shoemaker spinefoot] ISW; Kenyan Coast.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2966

Turbellarians
Provedor de dados: 27
Autores: Schockaert, E.R.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Turbellaria [Flatworms].
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6821

The diatom genus &lt;i&gt;Thalassiosira&lt;/i&gt; (Bacillariophyta) in the estuaries of the Schelde (Belgium-The Netherlands) and the Elbe (Germany)
Provedor de dados: 27
Autores: Muylaert, K.; Sabbe, K.
A taxonomic and ecological study of the phytoplankton of the estuaries of the Schelde (Belgium-The Netherlands) and the Elbe (Germany) revealed the presence of numerous species belonging to the diatom genus &lt;i&gt;Thalassiosira&lt;/i&gt;. Its representatives were a dominant component of the phytoplankton spring bloom in these estuaries. A total of 13 species were identified. All of these were present in the Schelde, while only ten were found in the Elbe. Seven and five species respectively had previously not been reported from the Schelde and Elbe. A detailed light and electron microscopical description of these species is given.  Most species had their distributional optimum in the polyhaline reaches of the estuaries. Community structure in these...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brackishwater environment Ecology Taxonomy Thalassiosira ANE; Germany; Elbe Estuary ANE; Netherlands; Westerschelde Belgium; Zeeschelde.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3082

Assessment of ammonia toxicity in contaminated sediments in the upper Scheldt (Belgium): the development and application of toxicity identification evaluation procedures
Provedor de dados: 27
Autores: Van Sprang, P.; Janssen, C.R.; Sabayasachi, M.; Benijts, F.; Persoone, G.
The toxicity of sediment pore waters from 4 sites in the Upper Scheldt war characterized using modified Toxicity Identification Evaluation (TIE) procedures The samples from all locations exhibited acute toxicity to the freshwater crustacean Thamnocephalus platyurus. The IIE approach was conducted using an enlarged battery of fractionation tests. Toxicity was removed or reduced significantly by the cation exchange resins and the air-stripping test at pH 11. Additionally, increased toxicity war observed at higher pH while a reduced toxicity war found at a decreased pH. From these TIE studies, ammonia war identified as the dominant toxic agent.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Metals; River; Toxicants; Water.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7459

New species of &lt;i&gt;Archilina&lt;/i&gt; Ax 1959 (Platyhelminthes Proseriata) from the Red Sea and the Caribbean
Provedor de dados: 27
Autores: Curini-Galletti, M.C.; Martens, P.M.
Four new species of the genus &lt;i&gt;Archilina&lt;/i&gt; Ax are described from tropical areas: &lt;i&gt;A. euglypta&lt;/i&gt; n. sp. and &lt;i&gt;A. batiae&lt;/i&gt; n. sp. from Red Sea; &lt;i&gt;A. stylifera&lt;/i&gt; n. sp. and &lt;i&gt;A. opisthobursa&lt;/i&gt; n. sp. from the Carribean (Puerto Rico). The karyotypes of all species are given: three of them have karyotypes derived from the basic set of the family Monocelididae. A sister-species relationship is proposed for the Carribean species based on the backwater position of the bursa. Because of this feature, the genus diagnosis is modified. The two Carribean species are considered as a separate evolutionary line within the genus &lt;i&gt;Archilina&lt;/i&gt;
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species Archilina ASW; Caribbean.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2955

Modelling (partly) cohesive sediment transport in sewer systems
Provedor de dados: 27
Autores: Berlamont, J.; Torfs, H.
Although the basic mechanisms of sediment transport in sewers are the same as in rivers, it is not necessarily appropriate to use the many mode1s that have been developed for sediment transport in rivers also in sewers. Different reasons are: 1) sewer sediments are often mixtures of cohesive and non cohesive material, and the bed is often stratified: 2) due to consolidation of the (partly cohesive) bed material, the erosion resistance of the bed may vary with time; 3) the flow conditions in sewers are usually unsteady, which is not accounted for in the classical sediment transport mode1s; 4) existing models have been derived from experiments in rectangu1ar flumes: the results are not directly applicable to sewers with circular cross section where the...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2946

Ecosysteemvisie voor de Vlaamse Kust: 1. Ecosysteembeschrijving
Provedor de dados: 27
Autores: Provoost, S.; Hoffmann, M.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Ecosystem management Ecosystems ANE; Belgium; Belgian Coast.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/236007.pdf

The holothurians of Easter Island
Provedor de dados: 27
Autores: Massin, C.
The holothurians collected during the "DIS RAPA NUI 270" Expedition (27-11-93 to 24-12-93) at Easter Island are described together with all the species already mentioned from the Island. Nine species are known. Distribution, variability and endemism of these species are discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological sampling Endemic species Taxonomy Holothurioidea [Sea cucumbers] Holothuroidea [Sea cucumbers] ISE; Chile; Easter I.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303536.pdf

Bedload and nearbed detritus transport in a tidal saltmarsh creek
Provedor de dados: 27
Autores: Hemminga, M.A.; Cattrijsse, A.; Wielemaker, A.
Bedload and nearbed transport of coarse (&gt;1mm) detritus particles were investigated in a tidal creek of a salt marsh in the Westerschelde estuary (south-west Netherlands). Using a fyke net positioned on the creek bottom, hourly transport through the creek was measured during 14 flood-ebb cycles in 1990 and 1991. Transport was bi-directional with flood imports varying between 32 and 2601 g dry weight (DW), and ebb exports varying between 0 and 4737 g DW. In nine of 14 tidal cycles, the creek was functioning as a net exporting system. The material that was exported with the ebb consisted mainly of macrophyte material. The annual loss of coarse organic matter by bedload plus nearbed transport through the creek was estimated to be less than 0-2% of the...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=308

Identification of individual aerosol particles containing Cr, Pb, and Zn above the North Sea
Provedor de dados: 27
Autores: Van Malderen, H.; Hoornaert, S.; Van Grieken, R.
Aerosol samples have been collected over the Southern Bight of the North Sea from an aircraft. In this way, 96 samples were taken for single-particle analysis during 16 flights. Almost 45,000 individual particles were analyzed with electron probe X-ray microanalysis. More than 5,000 of these were found to contain significant concentrations of one or more of the heavy metals Cr, Pb, and Zn. With the help of hierarchical, nonhierarchical, and fuzzy clustering techniques, various heavy metal-containing particle types could be identified. Significant differences in abundances were detected in the North Sea heavy metal aerosol, depending on the origin of the air masses. In samples with continental influence 50 times more Zn- and Pb-containing particles were...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3150

Seasonal variations in faunal distribution and activity across the continental slope of the Goban Spur area (NE Atlantic)
Provedor de dados: 27
Autores: Flach, E.; Heip, C.H.R.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/221006.pdf

The benthic food path
Provedor de dados: 27
Autores: Vincx, M.; Dewicke, A.; Fockedey, N.; Mees, J.; Steyaert, M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meiobenthos ANE; North Sea.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/276161.pdf

A handy method for measuring meiobenthic respiration
Provedor de dados: 27
Autores: Moens, T.; Vierstraete, A.; Vanhove, S.; Verbeke, M.; Vincx, M.
Our current understanding of meiofaunal respiration rates, and especially of the way they are influenced by changing abiotic factors, is still far from complete. Meiofaunal respiration is traditionally measured using Cartesian divers or related manometric techniques, but these are extremely time-consuming and labour-consuming. We have evaluated the use of Strathkelvin polarographic electrode model 1302 and the O&lt;sub&gt;2&lt;/sub&gt; monitor model 781 in determining the O&lt;sub&gt;2&lt;/sub&gt; consumption of meiofaunal animals. Respiration rates obtained in this way of the terrestrial nematode &lt;i&gt;Caenorhabditis elegans&lt;/i&gt; compared well with results obtained from Cartesian diver respirometry. Experiments with 3 estuarine nematode species...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3049

Sequence stratigraphy and architecture on a ramp-type continental shelf: the Belgian Palaeogene
Provedor de dados: 27
Autores: Jacobs, P.; De Batist, M.
In Palaeogene times, the 'Southern Bight' of the North Sea functioned as an intracratonic, shallow-marine, siliciclastic basin and accumulated a few meters of gently dipping sediment packages. A fine-scale seismic-stratigraphical model for the Palaeogene was formulated on the basis of a dense, high-resolution reflection seismic grid. In total 13 major seismic-stratigraphical units were defined, based on geometry and seismic facies characteristics. The seismic stratigraphy has been complemented with the results of four cored wells near the Belgian coast, containing a nearly continuous, 200m thick sediment succession of Eocene age. Facies analysis of these cores suggest that part of these sediments were deposited on a muddy shelf and part in a delta...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Palaeogene Stratigraphy ANE; Belgium; Belgian Continental Shelf (BCS).
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2986

The use of lipid emulsions as carriers for essential fatty acids in bivalves: a test case with juvenile &lt;i&gt;Placopecten magellanicus&lt;/i&gt;
Provedor de dados: 27
Autores: Coutteau, P.; Castell, J.D.; Ackman, R.G.; Sorgeloos, P.
Although information on bivalve nutrition is still very scarce, several studies have demonstrated the importance of lipids, in particular triglycerides, as a source of energy and essential fatty acids in the early life stages. Experimental diets used so far to study bivalve nutrition either heavily pollute the water or are too complex to prepare in a hatchery. The potential use of lipid emulsions as off-the-shelf supplements was evaluated through the analytical verification of the ingestion and incorporation of n-3 highly unsaturated fatty acids (HUFA) by the juvenile sea scallop &lt;i&gt;Placopecten magellanicus&lt;/i&gt; fed lipid emulsions of different fatty acid composition as a supplement to &lt;i&gt;Isochrysis sp.&lt;/i&gt; (clone T-Iso). The average...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Emulsions; Fatty acids; Lipids; Placopecten magellanicus [sea scallop].
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/2934.pdf

A model of early diagenetic processes from the shelf to abyssal depths
Provedor de dados: 27
Autores: Soetaert, K.; Herman, P.M.J.; Middelburg, J.J.
We present a numerical model of sedimentary early diagenetic processes that includes oxic and anoxic mineralization. The model belongs to the new wave of early diagenesis models that account for depth-dependent bioturbation and porosity profiles; it can be used both for calculating steady-state conditions and transient simulation. It was developed to reproduce the cycling of carbon, oxygen, and nitrogen along the ocean margin; it resolves the sediment-depth profiles of carbon, oxygen, nitrate, ammonium, and other reduced substances. Organic carbon is modeled as two degradable fractions with different first-order degradation rates and nitrogen:carbon ratios, to account for the decreasing reactivity and N/C ratio of the organic matter with depth into the...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8408

Determination of fatty acid requirements during weaning and first ongrowing of marine fish using a standard diet
Provedor de dados: 27
Autores: Coutteau, P.
Although the requirements for highly unsaturated fatty acids (HUFA), primarily eicosapentaenoic acid (EPA, 20:5n-3) and docosahexaenoic acid (DHA, 22:6n-3), have been demonstrated for various species of marine fish, major controversies continue to exist over what constitutes the optimal dietary intake of fatty acids and the efficiency of various lipid classes in supplying essential fatty acids. Furthermore, fatty acid requirements have been determined primarily in larval stages using enriched live food and in juvenile fish using pelletized diets, whereas fatty acid requirements during and just after the critical period of weaning are poorly documented. This paper reports on the development of a standard diet that yielded acceptable growth of marine fish...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2926

Dynamic response of deep-sea sediments to seasonal variations: a model
Provedor de dados: 27
Autores: Soetaert, K.; Herman, P.M.J.; Middelburg, J.J.
We present a dynamic, numerical model of early diagenetic processes that can be used to examine the response of different organic carbon mineralization pathways, concentration vs. depth profiles, and the resultant fluxes to seasonally varying carbon deposition. We show that there can be substantial temporal variability in sediment-water fluxes as well as in the relative contribution of different organic carbon mineralization pathways and oxygen consumption processes in deep-sea sediments. The timing and amplitude of the sediment response are most sensitive to the reactivity of the organic matter. We show that the fluxes of dissolved substances can be approximated by assuming that these constituents are at steady state with the carbon profiles. The model is...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8444

Denitrification in marine sediments: a model study
Provedor de dados: 27
Autores: Middelburg, J.J.; Soetaert, K.; Herman, P.M.J.; Heip, C.H.R.
The rate and factors controlling denitrification in marine sediments have been investigated using a prognostic diagenetic model. The model is forced with observed carbon fluxes. bioturbation and sedimentation rates, and bottom water conditions. It can reproduce rates of aerobic mineralization, denitrification, and fluxes of oxygen, nitrate, and ammonium. The globally integrated rate of denitrification is estimated by this model to be about 230-285 Tg N yr&lt;sup&gt;-1&lt;/sup&gt;, with about 100 Tg N yr&lt;sup&gt;-1&lt;/sup&gt; occurring in shelf sediments. This estimate is significantly higher than literature estimates (12-89 Tg N yr&lt;sup&gt;-1&lt;/sup&gt;), mainly because of a proposed upward revision of denitrification rates in slope and deep-sea...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=8415

Spermiogenesis and spermultrastructure in &lt;i&gt;Thylacorhynchus ambronensis&lt;/i&gt; (Schizorhynchia, Kalyptorhynchia, Platyhelminthes)
Provedor de dados: 27
Autores: Watson, N.A.; Schockaert, E.R.
Comprehensive ultrastructural investigation of spermiogenesis and the mature sperm in &lt;i&gt;Thylacorhynchus ambronensis&lt;/i&gt; revealed a number of features valuable for cladistic analysis. Two basal bodies lie on either side of an intercentriolar body in the zone of differentiation of the spermatid, but only one develops into a normal flagellum while the other remains as a small bud, eventually disappearing. Structures within and surrounding the two basal bodies differ, and, contrary to observations in another monoaxonemal schizorhynch (&lt;i&gt;Baltoplana magna&lt;/i&gt;), the two basal bodies become separated and only that of the normal flagellum is carried distally from the cytophore which unites an isogenic group of spermatids. A spiralling...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phylogeny Kalyptorhynchia Plathelminthes Schizorhynchia Thylacorhynchus ambronensis Schilke; 1970 Turbellaria [Flatworms].
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=6811

A new deep sea coralline sponge from Turks and Caicos Islands: &lt;i&gt;Willardia caicosensis&lt;/i&gt; gen. &lt;i&gt;et&lt;/i&gt; sp. nov. (Demospongiae: Hadromerida)
Provedor de dados: 27
Autores: Willenz, P.; Pomponi, S.A.
A new coralline sponge, &lt;i&gt;Willardia caicosensis&lt;/i&gt;, assigned to the family Timeidae, is described from the deep fore reef off the Turks &amp; Caicos Islands, tropical western Atlantic Ocean, where it is common at depths ranging from 100 to 119 m. Individuals vary up to 15-20 cm in width. The relatively thin aragonitic skeleton is covered with delicate pillars up to + 1 mm. The living tissue is restricted to the spaces between pillars and a thin sheet lying above the calcareous skeleton. Exhalant canals converge upon regularly spaced central oscules on the sponge surface. Siliceous spicules include tylostyles and amphiasters which are secondarily embedded in the aragonitic moiety of the skeleton. In addition, ultrastructural characters of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coral; New genera; Sponges; Porifera [Sponges]; Timeidae.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303635.pdf

Do meiofauna consume primary production?: about many questions and how to answer them
Provedor de dados: 27
Autores: Moens, T.; Vincx, M.
In view of their densities, benthic meiofauna are potentially important consumers of primary production. Feeding on diatoms and other microalgae has been documented in a variety of benthic meiotaxa, including many species of the numerically dominant nematodes and harpacticoids. Still, a detailed account of the exact diet of most species, and of the quantitative importance of primary producers in it, is lacking. For nematodes, the presumed nutritive importance of diatoms mostly derives from rather hypothetical links between buccal morphology and food. On the basis of such links, the proportion of nematodes supposedly feeding on the diatoms may amount to as much as 85%, suggesting meiofauna to importantly graze on microalgae. In estuarine and shallow coastal...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3075

Use of computer assisted sperm analysis (CASA) for monitoring the effects of pollution on sperm quality of fish: application to the effects of heavy metals
Provedor de dados: 27
Autores: Kime, D.E.; Ebrahimi, M.; Nysten, K.; Roelants, I.; Rurangwa, E.; Moore, H.D.M.; Ollevier, F.P.
Computer assisted sperm analysis (CASA) has been used to analyse the effects of cadmium and zinc on the motility of fish sperm treated either for 24h after partial dilution in an extender, or during the final dilution step on the microscope stage during video recording. The progressive motility of catfish sperm, which was not affected by storage for 24h, was decreased after exposure to 100 ppm cadmium or 2000 ppm zinc in extender for 24h. Only 1000 ppm cadmium or 2000 ppm zinc had any effect on motility when added to sperm at the final dilution stage. These results suggest that concentrations of cadmium which have been found to be present in fish gonads as a result of bioaccumulation from the water or diet may decrease the motility of sperm during...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2993

Clay fabric as an indicator of cyclic changes in an estuarine palaeo-environment: Lower Pleistocene, northern Campine Area, Belgium
Provedor de dados: 27
Autores: Wartel, S.; Sethi, P.S.; Bogemans, F.
SEM photographs of the Turnhout Member (Lower Pleistocene), reveal a vertical cyclicity of 2 main clay-fabric types: (a) face-to-face domains and (b) edge-to-face domains, each of them indicating the existence of respectively dispersed particles deposited in a salt-water environment, the transition being marked by intermediate clay-fabric types. It is suggested that the sequence corresponds to fluctuations in the position of the fluvial-marine equilibrium, related to important changes in river runoff of tidal amplitude. These observations indicate the utility of applying clay-fabric analyses to achieve a higher resolution in palaeo-environmental interpretations.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/3153.pdf

Gypsum and other calcium-rich aerosol particles above the North Sea
Provedor de dados: 27
Autores: Hoornaert, S.; Van Malderen, H.; Van Grieken, R.
Ca-containing particles, especially CaSO&lt;sub&gt;4&lt;/sub&gt; particles, have been encountered in several atmospheric aerosol studies. An overview is given of the different sources of airborne Ca-containing particles. The North Sea atmosphere is studied to identify the different Ca-containing particle types and to find the correlation between their occurrence and the source regions of the corresponding air masses. About 50,000 individual aerosol samples were collected above the Southern Bight of the North Sea for several wind directions and analyzed for their composition using electron probe X-ray microanalysis. Nonhierarchical cluster analysis is performed on the data to reveal the differentparticle types, their relative abundances and their sources....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aerosols; Calcium.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2974

Nematodes from the Indian Ocean: description of six new species of the genus &lt;i&gt;Molgolaimus&lt;/i&gt; Ditlevsen, 1921 (Nematoda: Desmodoridae)
Provedor de dados: 27
Autores: Muthumbi, A.; Vincx, M.
Six new species of the genus &lt;i&gt;Molgolaimus&lt;/i&gt; Ditlevsen, 1921 are described from the Indian Ocean. &lt;i&gt;Molgolaimus abyssorum&lt;/i&gt; n. sp. is characterised by a small body (L = 287-370 µm), amphids close to the anterior end (2-3 µm behind the anterior end), short (2 x abd) curved spicules and absense of pre-cloacal supplements.&lt;i&gt;Molgolaimus tyroi&lt;/i&gt; n. sp. is characterised by a small body size (L = 225-290 µm), amphids close the anterior end (2 µm behind anterior), long thin spicules curved twice and one or two pre-cloacal supplements. &lt;i&gt;Molgolaimus gazii&lt;/i&gt; n. sp. is characterised by narrow anterior end with the head region slightly offset, wide amphids (70% cbd) located at 2.6-3.0 x hd behind the anterior...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: New species Taxonomy Molgolaimus abyssorum Molgolaimus gazii Molgolaimus kiwayui Molgolaimus sabakii Molgolaimus tanai Molgolaimus tyroi Nematoda [Nematodes] ISW; Kenya; Gazi Bay ISW; Kenya; Tana Delta.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/243961.pdf

Improved use of the fluidized bed dryer for &lt;i&gt;Artemia&lt;/i&gt; cysts
Provedor de dados: 27
Autores: Bosteels, T.; Tackaert, W.; Van Stappen, G.; Sorgeloos, P.
A fluidized bed dryer for processing &lt;i&gt;Artemia&lt;/i&gt; cysts at the temperatures above 40°C is described and evaluated. The design is directed towards electronic temperature regulation and optimal design of the drying unit. The described fluidized bed dryer proves to be reliable for cyst processing, using inflow air temperatures up to 90°C. The use of this elevated temperature ensures a higher drying rate, resulting in a drying capacity more than 4 times higher than when using inflow air of 40°C. Electronic temperature regulation resulted in a large flexibility of the temperature regime inside the drying unit.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cysts; Artemia.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2919

Mijnverzakkingen in Limburg
Provedor de dados: 27
Autores: Vansteelandt, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=10250

International study on &lt;i&gt;Artemia&lt;/i&gt;: 56. Characterization of two &lt;i&gt;Artemia&lt;/i&gt; populations from Namibia and Madagascar: cytogenetics, biometry, hatching characteristics and fatty acid profiles
Provedor de dados: 27
Autores: Triantaphyllidis, G.V.; Abatzopoulos, T.J.; Miasa, E.; Sorgeloos, P.
Two parthenogenetic &lt;i&gt;Artemia&lt;/i&gt; populations from southern Africa, one from Swakopmund (Namibia) and another from Ankiembe saltworks (Madagascar) have been studied. The population of Namibia is mainly diploid (2n=42) with few tetraploid individuals (4n=84), while the one from Madagascar was found to be triploid (3n=63). No chromocenters have been observed in either of the two populations. The Namibian population has smaller cysts and nauplii compared to those of the Madagascar population. Discriminant analysis revealed significant differences in the biometry of the adults from the two populations. The two populations exhibited very good hatching characteristics. The study of fatty acid methyl esters revealed that the Namibian population...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3110

Techniques for measuring feeding by mesozooplankton natural particulate matter in various environments
Provedor de dados: 27
Autores: Tackx, M.; Daro, M.H.; Billones, R.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7097

Future observational and modelling needs identified on the basis of the existing shelf data
Provedor de dados: 27
Autores: Berlamont, J.; Radach, G.; Becker, G.; Colijn, F.; Gekeler, J.; Laane, R.W.P.M.; Monbaliu, J.; Prandle, D.; Sündermann, J.; Van Raaphorst, W.; Yu, C.S.
NOWESP has compiled a vast quantity of existing data from the North-West European Shelf. Such a focused task is without precedence. It is now highly recommended that one, or a few national and international data centres or agencies should be chosen and properly supported by the EU, where all available observational data, including the NOWESP data, are collected, stored, regularly updated by the providers of the data, and made available to the researchers. International agreement must be reached on the quality control procedures and quality standards for data to be stored in these data bases. Proper arrangements should be made to preserve the economic value of the data for their "owners" without compromising use of the data by researchers or duplicating...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/276638.pdf

The population dynamics of &lt;i&gt;Lernaeocera lusci&lt;/i&gt; and &lt;i&gt;L. branchialis&lt;/i&gt; on intermediate hosts
Provedor de dados: 27
Autores: Van Damme, P.A.; Ollevier, F.P.
The metapopulation dynamics of &lt;i&gt;Lernaeocera lusci&lt;/i&gt; and &lt;i&gt;L. branchialis&lt;/i&gt; on sole &lt;i&gt;Solea solea&lt;/i&gt; and flounder &lt;i&gt;Pleuronectes flesus&lt;/i&gt; were studied in the Dutch coastal area. Both fish species harboured large numbers of parasites when they arrived in the coastal area in the spring. Between April and June all parasites detached from the intermediate hosts and infected the definitive hosts (0+ whiting &lt;i&gt;Merlangius merlangus&lt;/i&gt; for &lt;i&gt;L. branchialis&lt;/i&gt;, and possibly sand goby &lt;i&gt;Pomatoschistus minutus&lt;/i&gt; for &lt;i&gt;L. lusci&lt;/i&gt;). Thereafter, flounder remained almost parasite-free until autumn. This suggests that &lt;i&gt;L. branchialis&lt;/i&gt; has...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Parasites Population dynamics Lernaeocera branchialis Lernaeocera lusci ANE; North Sea.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3143

The population dynamics of the parasitic copepode &lt;i&gt;Lernaeocera lusci&lt;/i&gt; (Bassett-Smith, 1896) on its definitive host
Provedor de dados: 27
Autores: Van Damme, P.A.; Hamerlynck, O.; Ollevier, F.P.
The mesoparasitic copepod &lt;i&gt;Lernaeocera lusci&lt;/i&gt; (Bassett-Smith, 1896) was recovered from first-year bib (&lt;i&gt;Trisopterus luscus&lt;/i&gt; L.) in the Voordelta (Southern Bight of the North Sea) from May until December 1989. Analysis of the seasonal abundance and of the population structure showed that transmission of infective stages to bib mainly occurred from June to September. From September to December the overall prevalence fluctuated around 70%. Maximum parasite population size (47/10&lt;sup&gt;4&lt;/sup&gt;m²) and the highest total egg number were recorded in September and October, respectively. It was found that total parasite mortality was significantly influenced by mortality of hosts carrying parasites. Natural mortality...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Parasites Population dynamics Lernaeocera lusci ANE; North Sea.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3115

Dietary ascorbic acid requirements during the hatchery production of turbot larvae
Provedor de dados: 27
Autores: Merchie, G.; Lavens, P.; Dhert, Ph.; Garcia Ulloa Gómez, M.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.
The effect of the high ascorbic acid (AA) levels transferred through enriched live food was evaluated for turbot &lt;i&gt;Scophthalmus maximus&lt;/i&gt; larvae in two consecutive feeding experiments. The same feeding strategy was applied to all treatments, except for the AA content in the live food which was manipulated through bioencapsulation with ascorbyl palmitate. This resulted finally in a low, medium and high-AA treatment. The AA incorporation levels in the turbot larvae (up to 1400 µg AA g DW&lt;sup&gt;-1&lt;/sup&gt;) were correlated with the AA content of the live food administered. However, feeding the high AA concentration resulted in the same values as for the medium treatment, indicating a saturation of the body AA reserves. Under standard...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3022

Xiphidorini (Nematoda: Longidoridae) from Uruguay
Provedor de dados: 27
Autores: Coomans, A.; Chaves, E.; De León, L. L.
Soil samples from a nature reserve for indigenous animals in Uruguay yielded one new and two known &lt;i&gt;Xiphodorus&lt;/i&gt; species and one new &lt;i&gt;Paraxiphidorus&lt;/i&gt; species. The new &lt;i&gt;Xiphidorus&lt;/i&gt; is described as &lt;i&gt;X. uruguayensis&lt;/i&gt; n. sp. It can be distinguished from other &lt;i&gt;Xiphidorus&lt;/i&gt; species by its large body size, cylindrical anterior end offset from the remainder of the body by a sudden expansion of the latter and by its barrel- to heart-shaped amphid with small slit-like aperture. The other species found were &lt;i&gt;X. balcarceanus&lt;/i&gt; Chaves &amp; Coomans, 1984 and &lt;i&gt;X. minor&lt;/i&gt; Rashid, Coomans &amp; Sharma, 1986. The new &lt;i&gt;Paraxiphidorus&lt;/i&gt; species,...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/303555.pdf

Oxidation rate of organic carbon in the mesopelagic water column as traced by suspended barium-barite
Provedor de dados: 27
Autores: Dehairs, F.A.; Goeyens, L.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7108

The effect of DHA/EPA ratio in live feed on the fatty acid composition, survival, growth and pigmentation of turbot larvae &lt;i&gt;Scophthalmus maximus&lt;/i&gt; L.
Provedor de dados: 27
Autores: Curé, K.; Gajardo, G.; Coutteau, P.
A set of experiments was designed to understand the effect of standardized enrichment diets on the fatty acid composition and culture performance of turbot larvae reared using the food chain rotifers -freshly hatched &lt;i&gt;Artemia&lt;/i&gt; nauplii- enriched &lt;i&gt;Artemia&lt;/i&gt; . Rotifers were fed on experimental diets of similar total n-3 HUFA content (34-39 mg/g DW) but different DHA/EPA ratio (0.7, 2.6 and 5.5). DHA/EPA ratio in &lt;i&gt;Artemia&lt;/i&gt; was manipulated by 24-h enrichment with an emulsion with either a high or low DHA/EPA ratio (respectively, 4.0 and 0.7). Results produced by three experiments showed that the n-3 HUFA composition of the rotifers (DHA/EPA 0.7-2.2) was a reflection of the diet composition, which in turn...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fatty acids Growth Live feed Survival Scophthalmus maximus (Linneaus; 1758).
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2952

A model of nematode dynamics in the Westerschelde Estuary
Provedor de dados: 27
Autores: Li, J.; Vincx, M.; Herman, P.M.J.
We developed a time dynamic model to investigate the temporal dynamics of nematode community in the brackish zone of the Westerschelde Estuary. The biomass of four nematode feeding groups observed from March 1991 to February 1992 is used to calibrate the model. Using environmental data as the input, the model predicts the temporal modification and interrelation of four nematode feeding groups. Nematodes achieve a dominant position in the community because of their lower loss rate (in respiration, excretion and natural death). Predators which are deposit-feeding macrobenthos control the variations of dominant nematodes, such as omnivores and non-selective deposit feeders. Food availability causes modification only for rare nematodes such as epigrowth...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diatoms; Ecology; Food; Light; Marine nematodes; Meiobenthos; Population dynamics; Predation; Respiration; Temperature; Nematoda [Nematodes].
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7284

The diet of &lt;i&gt;Neomysis integer&lt;/i&gt; (Crustacea, Mysidacea) in the maximum turbidity zone of estuaries
Provedor de dados: 27
Autores: Fockedey, N.; Mees, J.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7283

Determination of vitamin E in aquatic organisms by high-performance liquid chromatography with fluorescence detection
Provedor de dados: 27
Autores: Huo, J.-Z.; Nelis, H.; Lavens, P.; Sorgeloos, P.; De Leenheer, A.P.
A liquid chromatographic (HPLC) method has been developed for the quantitative determination of different forms of vitamin E (alpha-, gamma-, and delta-tocopherol) in aquatic organisms. The assay consists of a simple extraction with methanol containing butylhydroxytoluene (BHT) as an antioxidant, followed by reversed phase chromatography with fluorescence detection. The efficiency of the extraction method was equivalent or superior to that of more complex approaches for the isolation of tocopherols. Linearity has been achieved over the range of 0.02 to 3 µg/ml for alpha-tocopherol and within-run and between-run coefficients of variation at three levels were 0.7-2.9 and 1.2-3.7%, respectively. The recovery at three concentrations ranged from 73.8 to 96.6%...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2978

Structural and functional diversity of protistan communities
Provedor de dados: 27
Autores: Vyverman, W.; Sabbe, K.; Muylaert, K.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=7096

Influence of dietary vitamin C dosage on turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;) and European sea bass (&lt;i&gt;Dicentrarchus labrax&lt;/i&gt;) nursery stages
Provedor de dados: 27
Autores: Merchie, G.; Lavens, P.; Storch, V.; Übel, U.; Nelis, H.; De Leenheer, A.P.; Sorgeloos, P.
Stable forms of vitamin C were verified as dietary sources of ascorbic acid (AA) for the nursery stages of European sea bass and turbot. In a first experiment, various concentrations of ascorbyl palmitate (AP) and one level of AA 2-polyphosphate (ApP) were evaluated in a semi purified diet for European sea bass, &lt;i&gt;Dicentrarchus labrax&lt;/i&gt;. A significantly lower AA concentration was detected in the fry fed the AP-supplemented diets compared to the ApP-fed group, providing evidence that AP is an inferior source of vitamin C for young stages of sea bass. ApP was subsequently selected for the determination of the AA requirements of both sea bass and turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;) fry. The AA levels incorporated in the body...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dicentrarchus labrax (Linnaeus; 1758) [Bass] Scophthalmus maximus (Linneaus; 1758).
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3045

Contaminants in Belgian fish and shellfish (1971-1993)
Provedor de dados: 27
Autores: Vyncke, W.; Guns, M.; Roose, P.; Cooreman, K.; De Clerck, R.; Van Hoeyweghen, P.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3151

Contributions to the study of the comparative morphology of teeth and other relevant ichthyodorulites in living supra-specific taxa of Chondrichthyan fishes. Part B. Batomorphii: 1c. Order Rajiformes - Suborder Rajoidei - Family: Rajidae - Genera and Subgenera: &lt;i&gt;Arhynchobatis, Bathyraja richardsoni-&lt;/i&gt;type, &lt;i&gt;Cruriraja, Irolita, Notoraja, Pavoraja (Insentiraja), Pavoraja (Pavoraja), Pseudoraja, Raja (Atlantoraja), Raja (Okamejei)&lt;/i&gt; and &lt;i&gt;Rhinoraja&lt;/i&gt;
Provedor de dados: 27
Autores: Herman, J.; Hovestadt-Euler, M.; Hovestadt, D.C.; Stehmann, M.
Part B, Nos. 1a and 1b of this series, comprising of the Batomorphii the first and the second sections on the Rajoidei, is continued with the last group of rajoid taxa as far as material was available. The tooth morphology of representatives of eleven more genera and subgenera, namely &lt;i&gt;Arhynchobatis, Bathyraja richardsoni-type, Cruriraja, Irolita, Notoraja, Pavoraja (Insentiraja), Pavoraja (Pavoraja), Pseudoraja, Raja (Atlantoraja), Raja (Okamejei)&lt;/i&gt; and &lt;i&gt;Rhinoraja&lt;/i&gt;, is described and illustrated by SEM-photographs. Differential diagnoses and systematic interpretations are presented as a result of the odontological examinations described here and in the previous two issues 1a and 1b for the supraspefic taxa of the Rajoidei.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Functional morphology; Marine fish; Taxonomy; Teeth; Rajiformes.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/294448.pdf

Ecosysteemvisie voor de Vlaamse kust: 2. Natuurontwikkeling
Provedor de dados: 27
Autores: Provoost, S.; Rappé, G.; Ampe, C.; Leten, M.; Hoys, M.; Hoffmann, M.
Tipo: Info:eu-repo/semantics/book
Palavras-chave: Ecosystem management Ecosystems ANE; Belgium; Belgian Coast Belgium; Het Zwin natuurreservaat.
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/236008.pdf

Nutritional improvement of the commercial production of marine aquaculture species through application of innovative biotechniques
Provedor de dados: 27
Autores: Gajardo, G.; Coutteau, P.; Curé, K.; Sorgeloos, P.; Beardmore, J.A.
Marine aquaculture, particularly the salmon farming industry, has expanded very fast in Chile. Currently the country ranks second among the world leading salmon producers. However, there is a growing concern for the diversification of aquaculture activities. Examples are the cultures of flatfishes, either the introduced turbot (&lt;i&gt;Scophthalmus maximus&lt;/i&gt;) or the native flounder species &lt;i&gt;Paralichthys microps&lt;/i&gt; and &lt;i&gt;P. adspersus&lt;/i&gt;, along with the native scallop, &lt;i&gt;Argopecten purpuratus&lt;/i&gt;. Although both turbot and scallop farming have had a successful transition from pilot to industrial scale, dependable availability of larvae/seed at cost-effective prices is, unlike the situation in the salmon...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2961

The new geological map of Northwestern Flanders, Southern Bight North Sea: presentation
Provedor de dados: 27
Autores: Jacobs, P.; De Ceukelaire, M.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geological maps ANE; North Sea; Southern Bight.
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2989

The hyperbenthic fauna of the Belgian continental shelf: spatial variability in community structure
Provedor de dados: 27
Autores: Dewicke, A.; Mees, J.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Benthos ANE; Belgium; Belgian Continental Shelf (BCS).
Ano: 1996
URL: http://www.vliz.be/imisdocs/publications/277115.pdf

Accumulation of trimethoprim, sulfamethoxazole, and &lt;i&gt;N&lt;/i&gt;-acetylsulfamethoxazole in fish and shrimp fed medicated &lt;i&gt;Artemia franciscana&lt;/i&gt;
Provedor de dados: 27
Autores: Chair, M.; Nelis, H.J.; Leger, P.; Sorgeloos, P.; De Leenheer, A.P.
In a previous paper (H.J. Nelis, P. Léger, P. Sorgeloos, and A.P. De Leenheer, Antimicrob. Agents Chemother. 35:2486-2489, 1991) it was reported that two selected antibacterial agents, i.e. trimethoprim and sulfamethoxazole, can be efficiently bioencapsulated in nauplii of the brine shrimp &lt;i&gt;&lt;i&gt;Artemia&lt;/i&gt; franciscana&lt;/i&gt; for administration to fish. This follow-up study showed that larvae of the sea bass and the turbot as well as postlarvae of the white shrimp accumulate the therapeutic agents in high quantities when fed medicated &lt;i&gt;A. franciscana&lt;/i&gt;. To monitor their levels as a function of time, the liquid chromatographic method originally developed for the analysis of &lt;i&gt;A. franciscana&lt;/i&gt; was modified...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=2923

Ekološka poljoprivreda – poljoprivreda sutrašnjice
Provedor de dados: 21
Autores: Znaor, Darko.
This is the first comprehensive book on organic agriculture published in Croatian language. Although it is meant for the agricultural students and agricultural advisers, it also contains a number of practical information to support conversion of motivated farmers. Next to the critical view on current conventional agricultural practices and policy, the book content covers background, basic principles and development of organic agriculture; soil management;  manuring; specifics of bio-dynamic agriculture; crop production, crop protection and weed control; animal husbandry; conversion steps; regulations; matters concerning food quality and socio-economic aspects of organic agriculture.    The book is a compulsory students reader at several Croatian...
Tipo: Book
Palavras-chave: Production systems Community development Dairy cattle "Organics" in general Pasture and forage crops Production systems Soil quality Crop combinations and interactions Farm economics Food security; Food quality and human health Soil biology Beef cattle Cereals; Pulses and oilseeds Composting and manuring Feeding and growth Recycling; Balancing and resource management Nutrient turnover Social aspects Soil tillage Breeding and genetics Air and water emissions Sheep and goats Markets and trade Technology transfer Vegetables Health and welfare Biodiversity and ecosystem services Buildings and machinery Consumer issues Fruit and berries Pigs Crop health; Quality; Protection Policy environments and social economy Education; Extension and communication Landscape and recreation Poultry Research methodology and philosophy Weed management Viticulture Farm nutrient management History of organics Evaluation of inputs Regulation Root crops.
Ano: 1996
URL: http://orgprints.org/30093/1/EKOLOSKA-POLJOPRIVREDA-Darko-Znaor_slika_O_4609549.jpg

Maßzahlen der Energieeffizienz: Brennwerte oder Lebensmittel erzeugen?
Provedor de dados: 21
Autores: Haas, Guido.
Die Beurteilung des Energieeinsatzes der Erzeugung von Lebensmitteln erfordert ein anderes Effizienzkriterium als die Erzeugung von Brennstoffen. Die Energieeffizienz (Wirkungsgrad) stellt die Relation bzw. den Quotient von Energiezufuhr (Input) zu der Zielgröße Ertrag (Output: Masse oder Energie) dar. Der Energieertrag selbst ist kein geeigneter Maßstab zur Parametrisierung der Energieeffizienz. Um unterschiedliche Ertragsleistungen (Masse oder Energie) bei der Effizienzbeurteilung zu berücksichtigen, sind ev. verschiedene Leistungsklassen zu bilden.
Tipo: Conference paper, poster, etc.
Palavras-chave: "Organics" in general; Air and water emissions.
Ano: 1996
URL: http://orgprints.org/13932/1/Brennwert_Lebensmittel96.pdf

Demonstration Centres for Sustainable Agriculture
Provedor de dados: 21
Autores: Znaor, Darko.
The urge for more sustainable agriculture is increasingly recognized by the various parts of society (producers, consumers, scientists, policy makers, etc.). But in order to realize sustainable agriculture in practice it is not sufficient to change only the on-farm agricultural practices. Present socio-economic and political paradigms also need a change so that these can be able to support implementation of sustainable agriculture.     The concept of Demonstration Centres for Applied Agricultural Sustainability (DCAAS) offers an interesting concept and operative tool for changes not only at the farm level. Well designed and professionally organized DCAAS don't have a potential to demonstrate only "excellence" of sustainable agricultural production in...
Tipo: Conference paper, poster, etc.
Palavras-chave: "Organics" in general Education; Extension and communication Knowledge management.
Ano: 1996

Auswirkungen der Feldrandkompostierung: Einjährige Nachbeprobung des "Versuches Witterswil"
Provedor de dados: 21
Autores: Berner, Alfred; Alföldi, Thomas.
In dieser Arbeit soll aufgezeigt werden, wie sich die einzelnen Bodenkennwerte nach einer Feldrandkompostierung verhalten. Dazu wurde der Boden unter den Kompostplätzen in Witterswil nach sechs und zwölf Monaten nach Beendigung der Kompostierung nachbeprobt. Als Vergleich dienten die Werte der Kontrollparzelle, auf der nie kompostiert wurde. Zudem werden wie Werte anhand Literaturangaben von Bodenuntersuchungsergebnissen aus mehrjährigen Mistkompostmieteplätzen eingeschätzt.
Tipo: Report
Palavras-chave: Composting and manuring; Air and water emissions; Soil.
Ano: 1996
URL: http://orgprints.org/27613/1/berner-alfoeldi-1996-FiBLBericht-Feldrandkompostierung-NachbeprobungWitterswil.pdf

Ecological agriculture- a way towards sustainable agricultural practice
Provedor de dados: 21
Autores: Znaor, Darko; Bošnjaković, Branko.
Today, and especially in the years to come, agriculture, as well as all other human activities, will have to pay much more attention to their environmental impacts. In other words, it is expected that in the near future only technologies which care about environmental aspects will be promoted and accepted by policy makers, scientists, consumers, and society in general. This is not surprising since the environmental problems are among the most urgent ones our civilization will have to tackle and solve. This demand for more careful stewardship of environment is also acknowledged by philosophy of sustainable development - a widely recognized concept and necessity of future development.     Although established at the very beginning of this century, ecological...
Tipo: Journal paper
Palavras-chave: "Organics" in general; Farming Systems; Nutrient turnover; Social aspects; Air and water emissions; Soil; Biodiversity and ecosystem services; Food systems; Policy environments and social economy; Environmental aspects.
Ano: 1996

As perspectivas da pequena produção familiar na agricultura.
Provedor de dados: 21
Autores: Ciprandi, Olivio; Neto, João Fert.
As perspectivas da pequena produção familiar na agricultura constitui um tema controvertido na sociologia e na economia rural. A modernização da agricultura alterou suas relações com o restante da economia. As mudanças na base técnica e as políticas agrícolas determinaram a necessidade de crescimento das escalas mínimas viáveis do ponto de vista técnico e econômico, promovendo um processo de seleção e exclusão entre os pequenos produtores rurais, sem no entanto implicar na eliminação da pequena produção familiar.
Tipo: Journal paper
Palavras-chave: Farming Systems; Social aspects.
Ano: 1996
URL: http://orgprints.org/22655/1/Ciprandi_Perspectivas.pdf

Controlling internal parasites without anthelmintics (a review) OF0132
Provedor de dados: 21
Autores: Keatinge, Mr Ray.
1.0 Executive summary    1. Internal parasites are a major source of economic loss in grazing ruminants. To a greater or lesser degree, most farms in the UK rely on anthelmintics for control. In most situations these products continue to be highly effective, but anthelmintic resistance is increasing to the limited range of products available, raising serious concerns over the future of worm control.     2. Internal parasites are also of concern on organic farms, where the prophylactic use of anthelmintic is prohibited by the standards for organic production. Organic farms generally rely on grazing management, with restricted use of anthelmintic if required. However, also within the regulations is the absolute requirement to treat individual animals if this...
Tipo: Report
Palavras-chave: Health and welfare.
Ano: 1996
URL: http://orgprints.org/9909/1/Controlling_internal_parasites_without_antelmintics_(a_review)_OF0132.pdf

Varieties for Organic Production and Marketing (OF0110)
Provedor de dados: 21
Autores: NIAB,.
This study aimed to study varieties of cabbage, carrots, parsnips, potatoes and swedes under organic conditions and to determine significant factors in the organic production systems that affect variety performance. Additional investigations were carried out with potatoes to study the effects of blight and potato cyst nematode. All trials were conducted on UKROFS registered sites and to appropriate organic husbandry standards. Measurements and assessments followed guidelines used for conventional trials, with quality criteria being based upon the requirements of the retail trade. Any assessment of colour and shape would be in line with established charts and descriptions. Results of the study will provide advice and recommendations to organic growers for...
Tipo: Report
Palavras-chave: Crop health; Quality; Protection Breeding; Genetics and propagation Vegetables.
Ano: 1996
URL: http://orgprints.org/6797/1/Varieties_for_Organic_Production_and_Marketing_0FO110.pdf

Conversion to Organic Milk Production (OF0103)
Provedor de dados: 21
Autores: Haggar, Roger; Padel, Susanne.
This is the final report from the Defra project OF0103  In the UK fewer than 50 dairy farms were registered as organic in June 1995. The slow increase of farmers willing to convert to organic milk production was seen as one impediment for development of the organic milk market. The overall objective of this joint 3-year project was to monitor the physical, environmental and financial implications of conversion to organic milk production on a research farm (Ty Gwyn) and ten commercial farms in southwest England and Wales, in order to provide policy makers and farmers with more information about the consequences of conversion. Although the size of the sample is comparably small it represents about 20% of all organic dairy farms in the UK and an even larger...
Tipo: Report
Palavras-chave: Pasture and forage crops; Farming Systems; Dairy cattle.
Ano: 1996
URL: http://orgprints.org/6789/1/Conversion_to_organic_milk_production.pdf

Quality of plant products grown with manure fertilization
Provedor de dados: 21
The meeting discussed results of food quality obtained by different long-term trials in Switzerland (DOC trial), Germany (Darmstadt) and Sweden (K trial etc.). Based on the results, the parameters investigated with the samples have been evaluated and future research needs were identified as regards the topic of fertilization and food quality.
Tipo: Proceedings
Palavras-chave: Food security; Food quality and human health Crop health; Quality; Protection Nutrient turnover Cereals; Pulses and oilseeds Vegetables Composting and manuring.
Ano: 1996
URL: http://orgprints.org/604/1/vol9.pdf

Variation in species richness of plants and diverse groups of invertebrates in three calcareous grasslands of the Swiss Jura mountains
Provedor de dados: 21
Autores: Baur, Bruno; Joschi , Jasmin; Schmid, Bernhard; Hänggi, Ambros; Borcard, Daniel; Stary, Josef; Pedroli-Christen, Ariane; Thommen, G. Heinrich; Luka, Henryk; Rusterholz, Hans-Peter; Oggier, Peter; Ledergerber, Stephan; Erhardt, Andreas.
Species richness and abundance of vascular plants and several groups of invertebrates (spiders, oribatid mites, diplopods, grasshoppers and bush crickets, ground beetles, butterflies and terrestrial gastropods) were recorded in three calcareous grasslands (Nenzlingen, Movelier and Vicques) in the northwestern Swiss Jura mountains. Species richness varied both between taxonomical groups and between sites (species richness ranges: 96-116 vascular plants, 60-66 spiders, 18 oribatid mites at each site, 1-7 diplopods, 10-16 grasshoppers and bush crickets, 19-21 ground beetles, 32-46 butterflies and 15-21 terrestrial gastropods). Species overlap (number of species that occured at all sites) was relatively large in terrestrial gastropods (59,1%), butterflies...
Tipo: Journal paper
Palavras-chave: "Organics" in general; Biodiversity and ecosystem services.
Ano: 1996
URL: http://orgprints.org/20218/1/10_Baur_et_al_1996_Jura.pdf

Anbau und Absatz von Biozierpflanzen. Eine Bestandsaufnahme in der Schweiz, Deutschland und den Niederlanden
Provedor de dados: 21
Autores: Billmann, Bettina.
Aufgrund der Probleme, die sich durch die derzeit übliche Zierpflanzenproduktion für Mensch und Natur ergeben, stellt sich die Frage nach den Möglichkeiten und Grenzen einer biologischen bzw. ökologischen Blumenproduktion. Diese Studie gibt auf der Grundlage einer Befragung von ProduzentInnen und ExpertInnen einen Überblick über den Entwicklungsstand der Bioblumenproduktion in einigen europäischen Ländern und zeigt Handlungsmöglichkeiten und Perspektiven für Produktion und Absatz von Bioblumen auf.  In dieser Studie werden elf Betriebe aus der Schweiz, Österreich, Holland und Deutschland vorgestellt, die ihren Weg zu einer Bioblumenproduktion bereits gefunden haben oder sich aufgemacht haben, ihn zu suchen. In der Produktion haben die besuchten Biobetriebe...
Tipo: Report
Palavras-chave: Markets and trade Ornamentals; Flower bulbs and tree nurseries.
Ano: 1996
URL: http://orgprints.org/7245/1/billmann%2D2006%2DBioblumen_Studie.pdf

Erstnachweise von Centromerus capucinus und Lepthyphantes insignis für die Schweiz (Arachnida: Araneae: Linyphiidae)
Provedor de dados: 21
Autores: Blick, Theo; Pfiffner, Lukas; Luka, Henryk.
Im Rahmen zweier Projekte des Forschungsinstituts für biologischen Landbau im Raum Basel konnten zwei Linyphiiden-Arten erstmals für die Schweiz nachgewiesen werden. Alle diese Tiere wurden mit Hilfe der Bodenfallenmethode gefangen. Die Determination erfolgte durch den Erstautor.
Tipo: Journal paper
Palavras-chave: Biodiversity and ecosystem services.
Ano: 1996
URL: http://orgprints.org/20206/1/9_Blick_36_CCapucinus_LInsignis_CH.pdf

Održiva poljoprivreda- preduvjet održivog razvitka
Provedor de dados: 21
Autores: Znaor, Darko.
The paper discuses the role and place of sustainable types of agriculture in the concept and implementation of sustainable development concept. It outlines key environmental, economic and social problems associated with high-input farming. It advocates conversion to ecological types of farming and its benefits.
Tipo: Journal paper
Palavras-chave: "Organics" in general; Farm economics; Farming Systems; Social aspects; Food systems; Policy environments and social economy; Environmental aspects.
Ano: 1996

Influence of intensified mineral and organic fertilizer and biodynamic preparations on yield, quality and shelf life of potatoes
Provedor de dados: 21
Autores: Schulz, D.G.; Köpke, U.
In the described trials the influence of biodynamic preparations and also of different kinds and intensities of fertilization on potatoes were investigated. It was observed that:  — an increase of fertilizer enlarged the total yield, the average tuber weight, the total carbohydrate content, the weight loss in store and the tendency to self-digestion,  — the higher intensity of fertilization also reduced the tissue strength, the content of dry matter and the share of saccharose.  — In comparison to biodynamic and organic fertilizer the mineral fertilizer reduced the content of dry matter and increased the total yield, the average tuber weight, the self-digestion, conductivity and the tendency to build germs.  — Biodynamic preparations influenced the number...
Tipo: Book chapter
Palavras-chave: Food security; Food quality and human health Root crops.
Ano: 1996
URL: http://orgprints.org/2517/1/SCHULZ_KOEPKE_1996.pdf

Dairy farm production strategy and nitrogen surplus
Provedor de dados: 21
Autores: Halberg, Niels; Jensen, Carsten Hvelplund.
Via public legislation minimum standards for the utilization of manure have been introduced as an obligatory part of fertilization planning. And many Danish livestock farmers have improved the utilization of manure during the last five to ten years. There is, however, still not consensus concerning the question of whether the results are sufficient to reduce the loss of nitrogen to ground water and the Danish marine environment to acceptable levels.  In an analysis of 30 dairy farms Halberg et al. (1995) showed a variation in N surplus between 88 and 387 kg/ha depending on stocking rate and management. At ca. 1.4 livestock units1) per ha there was a difference between 250 and 116kg N/ha farm level surplus. It was concluded that differences between farms...
Tipo: Report chapter
Palavras-chave: Farming Systems; Farm nutrient management.
Ano: 1996
URL: http://orgprints.org/13118/1/13118.pdf

Ekološka poljoprivreda – poljoprivreda sutrašnjice
Provedor de dados: 21
Autores: Znaor, Darko.
This is the first comprehensive book on organic agriculture published in Croatian language. Although it is meant for the agricultural students and agricultural advisers, it also contains a number of practical information to support conversion of motivated farmers. Next to the critical view on current conventional agricultural practices and policy, the book content covers background, basic principles and development of organic agriculture; soil management;  manuring; specifics of bio-dynamic agriculture; crop production, crop protection and weed control; animal husbandry; conversion steps; regulations; matters concerning food quality and socio-economic aspects of organic agriculture.    The book is a compulsory students reader at several Croatian...
Tipo: Book
Palavras-chave: Production systems Community development Dairy cattle "Organics" in general Pasture and forage crops Production systems Soil quality Crop combinations and interactions Farm economics Food security; Food quality and human health Soil biology Beef cattle Cereals; Pulses and oilseeds Composting and manuring Feeding and growth Recycling; Balancing and resource management Nutrient turnover Social aspects Soil tillage Breeding and genetics Air and water emissions Sheep and goats Markets and trade Technology transfer Vegetables Health and welfare Biodiversity and ecosystem services Buildings and machinery Consumer issues Fruit and berries Pigs Crop health; Quality; Protection Policy environments and social economy Education; Extension and communication Landscape and recreation Poultry Research methodology and philosophy Weed management Viticulture Farm nutrient management History of organics Evaluation of inputs Regulation Root crops.
Ano: 1996
URL: http://orgprints.org/26393/1/EKOLOSKA-POLJOPRIVREDA-Darko-Znaor_slika_O_4609549.jpg

Proceedings of II SEAE CONGRESS SPANISH SOCIETY FOR ORGANIC FARMING
Provedor de dados: 21
Concerns about an enduring rural development are growing. These worries are due to a deep awareness. Part of society is concerned on environmental, economic and social problems which have been the result of the current form of doing agriculture since just a few decades ago.
Tipo: Proceedings
Palavras-chave: "Organics" in general; Farming Systems.
Ano: 1996
URL: http://orgprints.org/29757/1/actas-pamplona-vd.pdf

Laufkäfer: Nützlinge und Bioindikatoren in der Landwirtschaft
Provedor de dados: 21
Autores: Henryk , Luka.
In der allgemeinen und angewandten Entomologie nehmen die Laufkäfer seit Jahren eine wichtige Stellung ein. Die Vielfalt und Schönheit der Käfer, ihre Nützlichkeit als Schädlingsvertilger und ihre Empfindlichkeit auf Umweltveränderungen (Bioindykotion) wecken grosse Aufmerksamkeit unter den Fachleuten der Entomologie, Agronomie und Ökologie.
Tipo: Journal paper
Palavras-chave: "Organics" in general; Biodiversity and ecosystem services.
Ano: 1996
URL: http://orgprints.org/20205/1/8_Luka_1996_Laufkaefer.pdf

Research Implications of a Paradigm Shift in Agriculture: The Case of Organic Farming
Provedor de dados: 21
Autores: Wynen, Els.
It is proposed in this report that organic and conventional agriculture belong to two different paradigms.    The first type of agriculture, called conventional farming in this paper, is characterised by an approach of control and reductionism, emphasising treatment of symptoms instead of prevention in management. Solutions to problems within chemistry are an important part of the science involved in conventional agriculture. Although there is awareness of off-farm problems, in general these are not paid a great deal of attention.    The second, called organic farming, approaches farming as an holistic enterprise, with the whole farm seen as one integrated, dynamic system. Changes in one part of the system might influence a number of other parts. Attempts...
Tipo: Report
Palavras-chave: "Organics" in general.
Ano: 1996
URL: http://orgprints.org/3053/1/TABLE_OF_CONTENTS.htm

A New Definition of Food Quality
Provedor de dados: 21
Autores: Meier-Ploeger, Angelika.
Six criteria should be used to identify important components of quality (which are especially important for organic products):  - Authentic  - Functional  - Biological  - Nutritional  - Sensual  - Ethical
Tipo: Conference paper, poster, etc.
Palavras-chave: Food security; Food quality and human health.
Ano: 1996
URL: http://orgprints.org/2253/1/handbuch%2Dkein%2DDokument.pdf

Assimilate partitioning and phytotoxicity in soybean plants treated with herbicides
Provedor de dados: 87
Autores: Marenco,Ricardo A.; Lopes,Nei F.
To investigate the effects of trifluralin, chlorimuron and clomazone on morphology and assimilate partitioning during soybean development, plants were grown in a greenhouse and sampled at 14-day intervals. Clomazone reduced stem and leaf dry matter accumulation at 14 days after emergence (DAE), while trifluralin and chlorimuron reduced plant part dry matter accumulation up to 28 DAE. The number of leaves, plant height, mass and number of pods and seeds, and the shoot/root ratio were not influenced by the herbicides. Roots, stems and leaves were the preferred sinks up to the R2 growth stage, while pods and developing seeds became the preferred sinks later. This order was not altered by the herbicides.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trifluranlin; Clorimuron; Clomazone; Assimilate partitioning; Herbicides.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000100006

Viabilidade econômica dos sistemas manual e mecanizado de aplicação de herbicidas em ferrovias
Provedor de dados: 87
Autores: Antuniassi,Ulisses R.; Velini,Edivaldo D.; Camposilvan,Daniel.
A aplicação mecanizada de herbicidas em ferrovias tem como principal vantagem a grande capacidade operacional, cobrindo trechos extensos em curtos espaços de tempo. Entretanto em função das características dos equipamentos utilizados, quase sempre ocorre grande desperdício de herbicida. A aplicação manual, através de pulverizadores costais, tem como principal vantagem a possibilidade da pulverização dirigida às áreas infestadas, diminuindo a quantidade de herbicida aplicado. Por outro lado, sua reduzida capacidade operacional faz com que a aplicação de longos trechos seja demorada, tornando-a, assim, mais dependente dos problemas climáticos e operacionais da ferrovia. O objetivo do trabalho foi realizar uma análise comparativa das características...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pulverização; Custos; Área não agrícola.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000100002

Curva de dissipação de imazapyr em água de drenos de irrigação, após aplicação para controle da taboa
Provedor de dados: 87
Autores: Prates,H.T.; Silva,J.B.; Fabris,J.D.; Ferreira,G.A.L.; Leite,C.E.P.; Batista,M.J.
O herbicida sistêmico imazapyr foi usado no controle da taboa (Typha subulata Crespo &amp;amp; Peres-Moreau f.) em drenos de irrigação, como alternativa ao controle mecânico. O resíduo do princípio ativo do herbicida na água foi analisado por cromatografia líquida de alta performance (HPLC). A curva de dissipação de imazapyr mostrou que o herbicida pode ser usado para o controle de taboa em drenos de irrigação, sem causar danos a culturas vizinhas, desde que a água seja usada, no mínimo, depois de 1,6 a 3,7 dias da aplicação das doses de 500 a 1500 g ha-1, respectivamente.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Resíduo; Herbicida; Monitoramento ambiental; Impacto ambiental; Planta daninha.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000200006

Aplicação em jato dirigido em cana-de-açúcar. II: espaçamento entre bicos turbo floodjet para a aplicação de herbicidas
Provedor de dados: 87
Autores: Peressin,V.A.; Matuo,T.; Perecin,D.; Pio,L.C.; Braz,B.A.
Aplicações de herbicidas em estádios mais avançados de desenvolvimento da cana-de-açúcar, em pré ou em pós-emergência inicial das plantas infestantes, podem ser feitas em jato dirigido, para que o produto atinja diretamente o alvo. Com esse fim, avaliaram-se 10 bicos TF-VS4 a 30 lbf/pol2, determinando-se as vazões e os padrões de deposição em 6 alturas (entre 9 e 36cm), em mesa de prova com 67 canaletas. Após isso, um programa computacional simulou o padrão de deposição de dois bicos separados entre 20 e 70cm no centro da entre linha da cana-de-açúcar. Os resultados indicaram que as vazões obtidas com bicos individuais apresentaram média de 2,3 l/min, com coeficiente de variação 2,5% e os padrões de deposição mostraram boa precisão com um intervalo de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tecnologia de aplicação; Barra de pulverização; Saccharum officinalis.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000200001

Efeito do oxyfluorfen, 2,4-D e glyphosate na atividade microbiana de solos com diferentes texturas e conteúdos de matéria orgânica
Provedor de dados: 87
Autores: Souza,A.P. de; Loures,E.G.; Silva,J.F. da; Ruiz,H.A.
Estudaram-se os efeitos dos herbicidas oxyfluorfen, 2,4-D e glyphosate na atividade microbiana de três solos com diferentes texturas e conteúdos de matéria orgânica, mediante ensaio respirométrico em laboratório. Os herbicidas foram aplicados isoladamente em cada substrato, num experimento em blocos casualizados, com três repetições. Os resultados apresentados indicaram um incremento da atividade microbiana no solo com a aplicação dos herbicidas estudados. Observou-se também, que o efeito dos herbicidas sobre a microbiota do solo é fortemente influenciado pelas características físicas do solo principalmente sua textura.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Respiração; Ensaios biológicos; Microbiota do solo.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000100007

Persistence of the biocide activity of atrazine in soils of the southeast of Buenos Aires Province
Provedor de dados: 87
Autores: Delmonte,A.A.; Bedmar,F.; Mantecón,J.D.; Echeverría,H.; Barassi,C.A.
Atrazine persistence in soils of the southeast of Buenos Aires Province, was studied by an oat bioassay. Atrazine doses of 0.58, 1.16, and 2.32 mg.g-1 dry soil weight (DSW) were applied to pots containing soils from Balcaree, A. Gonzáles Chaves and San Cayetano sites, whose organic matter (OM) content of soils were 5.70, 5.15, and 3,84%, respectively. Avena sativa cv. Millauquén plants were grownth in the pots under greenhouse conditions at different times after atrazine application. Shoots were evenly cut above the soil and dry weight determined as a measure of plant growth. Plants grown in non-sprayed soil were used as controls. Relative dry weight (RDW) of shoots was calculated as percentage of control. Atrazine phytotoxicity was expressed in terms of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oat bioassay; GR50; Phytotoxicity; Argentina.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000200004

Interferência das plantas daninhas sobre algumas características agronômicas e a produtividade de sete cultivares de milho
Provedor de dados: 87
Autores: Rossi,Ivan H.; Osunas,Juan A.; Alves,Pedro L.C.A.; Bezutte,Alexandre J.
O presente trabalho teve por objetivo estudar o comportamento de 7 cultivares de milho (Zea mays L.) quanto à interferência da comunidade de plantas daninhas. Para tanto, os 7cultivares de milho (ESALQ VF-7, ESALQ VD-8, COMPOSTOS ARQUITETURA, FLINT e DENTADO, PIRANÃO e o híbrido CARGILL 501) foram submetidos a duas condições de interferência: com e sem, totalizando 14 tratamentos arranjados em esquema fatorial (7x2), instalados, no campo, em área experimental da FCAV/UNESP, Campus de Jaboticabal, seguindo o delineamento experimental de blocos ao acaso com 4 repetições. A comunidade infestante cujas espécies mais importantes foram SIDCO, BRAPL e ELEIN, estabeleceu-se a partir dos 14 dias após a semeadura, passando a interferir negativamente sobre a cultura...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Planta daninha; Matointerferência.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000200007

Efeito de linuron e oryzalin no crescimento da planta, na fixação simbiótica do nitrogênio e na produtividade da soja
Provedor de dados: 87
Autores: Novo,Maria do Carmo S. S.; Cruz,Luciano S. P.; Pereira,José Carlos V. N. A.; Nagai,Violeta; Ambrosio,Luis Alberto.
Durante 2 anos consecutivos, foi realizado um experimento na Estação Experimental de Ribeirão Preto, SP, do Instituto Agronômico, em um Latossolo roxo de textura argilosa, cultivado com soja [Glycine max (L.) Merrill] cultivar IAC-11. O objetivo do trabalho foi estudar o efeito da inoculação de sementes e de doses de linuron (1,00 e 2,00 kg/ha) e de oryzalin (1,875 e 3,75 kg/ha), aplicados em pré-emergência, no crescimento da planta, na fixação simbiótica do nitrogênio e na produtividade de grãos de soja. Além dos tratamentos com herbicidas, foram mantidos dois controles, sendo um não inoculado e outro inoculado com a estirpe de Bradyrhizobium japonicum SMS-463(=29W). Os tratamentos com herbicidas foram todos inoculados. O delineamento experimental...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbicidas; Nodulação; Atividade da nitrogenase; Redução do acetileno.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000100008

Germination and emergence of Stachytarpheta cayennensis and Ipomoea asarifolia
Provedor de dados: 87
Autores: Dias Filho,M.B.
Understanding how weed seed germination and emergence respond to environmental factors is critical to determining their adaptive capabilities and potential for infestations, and could also aid in the development of effective control practices. Germination of Ipomoea asarifolia (Desr.) Roem. &amp;amp; Schultz and Stachytarpheta cayennensis (Rich) Vahl. decreased linearly with decreasing osmotic potentials. Also, increasing osmotic stress delayed germination of Ipomoea more than that of Stachytarpheta. Ipomoea germination was insensitive to light, while Stachytarpheta showed a positive photoblastic behavior. Nitrate had a negative effect on germination of Ipomoea seed under both light and dark conditions but stimulated dark germination of Stachytarpheta....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrate; Light; Osmotic stress; Depth of planting.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000200005

Evaluacion de herbicidas de aplicacion temprana en el cultivo de melon de trasplante
Provedor de dados: 87
Autores: Cantamutto,M.A.; Ayastuy,M.E.; Elisei,V.R.
O objetivo deste trabalho foi selecionar herbicidas para otimizar o controle de plantas daninhas e o rendimento da cultura de melão, implantada pela técnica de transplante, nas condições agroecológicas do sul da província de Buneos Aires. Com a finalidade de proteger a cultura durante o período crítico de competição das plantas daninhas, nas primeiras sete semanas , foram utilizados os herbicida trifluralin, pendimethalin , metribuzin, naptalan, butylate, atrazine, linuron e misturas de pendimethalin + linuron, antes do transplante. Os três primeiros herbicidas foram incorporados ao solo de forma mecânica e os demais mediante irrigação. Durante as safras 1992/93 e 1993/94 os herbicidas naptalan, pendimethalin e a mistura controlaram de forma eficiente a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cucumis melon; Trifluralin; Pendimethalin; Linuron; Butylate; Atrazine; Naptalan; Planta daninha.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000100003

Respostas de híbridos de milho ao nicosulfuron: I - aspectos biológlcos e da produção
Provedor de dados: 87
Autores: Damião Filho,Carlos F.; Môro,Fabíola V.; Taveira,Leontino R.
Um ensaio de campo foi conduzido em 1994/95, na Fazenda de Ensino e Pesquisa da Faculdade de Ciências Agrárias e Veterinárias (UNESP) de Jaboticabal, SP, sendo os objetivos do trabalho comparar aspectos biológicos e produtivos de nove diferentes híbridos de milho, resultantes da aplicação da dose de 80 g.ha-1 de nicosulfuron {2- [[[[4,6-dimetoxi-2-pirimidina) amina] carboxil] amina] sulfonil] -N,N-dimetil-3-piridinacarboxiamida} em relação a plantas não tratadas. Verificou-se que o herbicida afetou significativamente alguns dos aspectos biológicos estudados (altura de plantas e de espigas, número de folhas, comprimento e largura de folhas e estande final) e não afetou os relacionados com a posição relativa das espigas, o diâmetro do colmo, as porcentagens...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Herbicida pós-emergente; Sulfoniluréias.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000100001

Avaliação da eficiência da mistura pronta de glyphosate + 2,4-D no controle da Commelina virginica L. em citros
Provedor de dados: 87
Autores: Ramos,Hamilton H.; Durigan,Julio C.
Um dos herbicidas mais utilizados para o controle de plantas daninhas em pós-emergência nos pomares cítricos paulistas é o glyphosate. No entanto, este herbicida aplicado isoladamente e nas doses recomendadas, tem proporcionado seleção da planta daninha trapoeraba (Commelina virginica L.), devido à grande tolerância da mesma, somada à eficiente eliminação das demais espécies da comunidade infestante. Em vista disso, e pela falta de opções , faz-se necessária a pesquisa de outros herbicidas ou misturas de herbicidas que sejam eficientes no controle da trapoeraba, de baixa toxicidade para os aplicadores, sistêmicos, e que sejam seletivos às plantas cítricas. O presente trabalho foi desenvolvido com o objetivo de estudar a eficiência da mistura pronta dos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Citrus sinensis; Trapoeraba; Controle químico.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000100004

Estudios sobre lecheron en la zona centro de la provincia de Buenos Aires
Provedor de dados: 87
Autores: Juan,V.F.; André,H.M.S.; Carbone,E.; Orfila,E.N.; Scaramuzzino,R.L.
Euphorbia dentata Michaux é uma espécie de ciclo primaveril-estival, de recente introdução na zona central da Província de Buenos Aires. Nos últimos anos, no distrito de Azul, adiquiriu importância como planta daninha ocupando uma grande área agrícola, principalmente de soja, milho e girassol. Atualmente, o pouco conhecimento desta espécie dificulta o emprego de métodos de manejo racionais e eficientes. O objetivo deste trabalho foi determinar a área de difusão desta planta daninha na região de azul; descrever suas características botânicas e estudar o seu comportamento nesta área através de diversos aspectos biológicos que pudessem ser relevantes para estabelecer programas de controle. Os estudos foram desenvolvidos em toda área agricultável da região...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Euphorbia dentata; Biologia; Descrição botânica.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000200003

Analisis de la comunidad de malezas en trigo cultivado sobre distintos antecesores
Provedor de dados: 87
Autores: Requesens,E.; Moran,C.; Pasqualini,A.; Nuciari,M.
Comparou-se a composição e freqüência relativa das espécies e dos índices de diversidade e dominância da comunidade infestante de três áreas de trigo que foram cultivadas com trigo, milho e batata anteriormente. O estudo foi realizado na região de Mar del Plata, Província de Buenos Aires Argentina. Em cada área, realizou-se 40 amostragens de 1m2, dispostos de forma regular no campo, antes da aplicação dos herbicidas. Foram observadas pequenas diferenças entre as três comunidades florísticas levantadas, porém importantes mudanças foram verificadas na freqüência relativa de algumas espécies. Stellaria media foi a espécie mais freqüente, quando a cultura foi procedida de trigo e milho e sendo apenas superada por Solanum tuberosum quando a cultura do trigo...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seqüência de cultivos; Freqüências relativas; Diversidade específica; Argentina.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000200008

Efeitos de extratos aquosos de assa-peixe sobre a germinação de três espécies de braquiária
Provedor de dados: 87
Autores: Souza Filho,A.P. da S.; Rodrigues,L.R. de A.; Rodrigues,T. de J.D.
Examinou-se o potencial alelopático da planta invasora de pastagem assa-peixe (Vernonia polyanthes), através dos efeitos dos extratos aquosos (concentração de 10%) da parte aérea, de raízes e de sementes sobre a germinação (porcentagem e velocidade) e o alongamento da radícula das gramíneas forrageiras Brachiaria humidicola, Brachiaria decumbens e Brachiaria brizantha cv. Marandu. O pH, a condutividade e o potencial osmótico foram determinados em cada extrato. A contribuição do potencial osmótico foi isolada através de cálculo, tendo por base os potenciais osmóticos dos extratos e da água e a equação de regressão que se ajustou a cada parâmetros, em função da variação do potencial osmótico na faixa de 0,0 a 0,4 MPa. Os bioensaios foram desenvolvidos em...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alelopatia; Gramíneas; Forrageiras; Planta daninha; Pastagem.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000200002

Efeitos da densidade e proporção de plantas de milho (Zea mays L.) e caruru (Amaranhus retroflexus L.) em competição
Provedor de dados: 87
Autores: Christoffoleti,Pedro J.; Victoria Filho,Ricardo.
A maioria dos estudos de competição, entre plantas daninhas e cultivadas, conduzidos nos últimos anos, procuram quantificar a interferência que as plantas daninhas causam sobre as culturas; no entanto, poucos destes trabalhos estudam mecanisticamente os efeitos da densidade e da proporção de plantas em uma mistura de espécies, a importância da competição intra e interespecífica e a diferenciação de nicho ecológico. Desta forma, foi desenvolvida a presente pesquisa com o objetivo principal de descrever as interações competitivas e os índices de competitividade entre plantas de milho (Zea mays L.) e caruru (Amarathus retroflexus L.). A metodologia utilizada foi a de um experimento substitutivo com densidade total de 400 plantas/m2 e 5 proporções, além da...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Experimento substitutivo; Índices de competição; Competição intraespecífica; Competição interespecífica; Nicho ecológico.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83581996000100005

Banking on "Green Money": Are Environmental Financial Responsibility Rules Fulfilling Their Promise?
Provedor de dados: 31
Autores: Boyd,   James.
Financial responsibility rules are an increasingly common form of environmental regulation. Currently, the operators of landfills, underground petroleum storage tanks, offshore rigs, and oil tankers must demonstrate the existence of adequate levels of capital as a precondition to the legal operation of their businesses. Environmental financial responsibility ensures that firms possess the resources to compensate society for pollution costs created in the course of business operations. In addition to providing a source of funds for victim compensation and pollution remediation, financial responsibility is thought to motivate better decision-making, particularly regarding the management of long-term risks. This article describes both the promise of financial...
Tipo: Working or Discussion Paper
Palavras-chave: Financial responsibility; Environmental liability; Waste disposal; Environmental Economics and Policy; Q28; L51; K32.
Ano: 1996
URL: http://purl.umn.edu/10592

RESPONDENTS TO CONTINGENT VALUATION SURVEYS: CONSUMERS OR CITIZENS? - REPLY
Provedor de dados: 31
Autores: Blamey,   Russell K.; Common,   Mick S.; Quiggin,   John C.
Tipo: Journal Article
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/22391

Commodity Promotion Economics: A Symposium in Honor of Olan Forker's Retirement
Provedor de dados: 31
Autores: Ferrero,   Jennifer L.; Kaiser,   Harry M.
Tipo: Technical Report
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/122821

The Cut Flower Industry: R&amp;D Issues
Provedor de dados: 31
Tipo: Report
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/113820

DOES ENGEL'S LAW EXTEND TO FOOD AWAY FROM HOME?
Provedor de dados: 31
Autores: Byrne,   Patrick J.; Capps,   Oral, Jr.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/27064

Detection and Treatment of Mineral Nutrition Problems in Grazing Sheep
Provedor de dados: 31
Tipo: Report
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/118038

PARTNERSHIPS WITH INDUSTRY: THE ESSENTIAL INGREDIENT FOR AGRIBUSINESS EDUCATION
Provedor de dados: 31
Autores: Litzenberg,   Kerry K.; Dunne,   Anthony J.
This paper examines the important issues of establishing partnerships between agribusiness education programs and industry representatives including the benefits to firms, faculty and students. Detailed information is presented on how these partnerships are developed and implemented.
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness internship; Agribusiness education; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/24012

NATIONAL ADMINISTERED PROTECTION AGENCIES: THEIR ROLE IN THE POST-URUGUAY ROUND WORLD
Provedor de dados: 31
Autores: Meilke,   Karl D.; Sarker,   Rakhal.
This paper reviews the role of national administered protection agencies, whose responsibility is the enforcement of national trade remedy laws. After reviewing four recent trade remedy cases we argue that the role of the national administered protection agencies should be changed. Given the additional responsibilities the WTO has assumed in administering the Agreement on Agriculture, the growth of regional integration agreements and the increasing use of anti-dumping and countervailing duty actions against fairly traded imports, we argue that all trade actions should be taken to the WTO for settlement. The role of the national administered protection agencies should be changed to make them agents for trade liberalization. This would involve them taking on...
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/51212

On the political economy of income redistribution and crime
Provedor de dados: 31
Autores: Imrohoroglu,   Ayse; Merlo,   Antonio; Rupert,   Peter.
In this paper we consider a general equilibrium model where heterogeneous agents specialize either in legitimate market activities or in criminal activities and majority rule determines the share of income redistributed and the expenditures devoted to the apprehension of criminals.  We calibrate our model to the U.S. economy in 1990, and we conduct simulation exercises to evaluate the effectiveness of expenditures on police protection and income redistribution at reducing crime.  We find that while expenditures on police protection reduce crime, it is possible for the crime rate to increase with redistribution.  We also show that economies that adopt relatively more generous redistribution policies may have either higher or lower crime rates than economies...
Tipo: Working or Discussion Paper
Palavras-chave: Political Economy.
Ano: 1996
URL: http://purl.umn.edu/7497

ENVIRONMENTAL ACCOUNTING OF FOREST RESOURCES: TWO ITALIAN CASE STUDIES; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Franceschetti,   Giorgio; Pettenella,   Davide.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/14366

The Next Generation of Market-Based Environment Policies
Provedor de dados: 31
Autores: Stavins,   Robert N.; Whitehead,   Bradley W.
We examine what will be required if market-based environmental policy instruments are to become a major force in U.S. environmental policy. We define market-based instruments, and specify five categories: pollution charges; tradable permits; deposit refund systems; reducing market barriers; and eliminating government subsidies. We review major U.S. applications, including: EPA's emissions trading program; the leaded gasoline phasedown; water quality permit trading; CFC trading; SO2 allowance trading; and the RECLAIM program. We assess the U.S. experience in terms of the relatively limited use of these instruments and in terms of the mixed record of performance of implemented instruments. We ask how the next generation of market-based instruments can be...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Q28; Q48.
Ano: 1996
URL: http://purl.umn.edu/10640

USAID Contributes to Building National Capacity to Strengthen Food Security: An Example from Mali
Provedor de dados: 31
Autores: Boughton,   Duncan; Staatz,   John M.; Weber,   Michael T.
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty; Downloads May 2008-July 2009: 13.
Ano: 1996
URL: http://purl.umn.edu/11333

DEVELOPMENT AND COMPETITION IN RURAL AND METROPOLITAN AREAS IN THE U.S.; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Maki,   Wilbur R.
This paper addresses the growing concerns of local governments and residents about the high costs of urban spillover into adjoining rural areas.  From a rural agricultural perspective we focus on the loss of productive agricultural land and open space.  From a metropolitan core city perspective the focus shifts to the erosion of the city tax base and its fiscal capacity to pay for the associated high costs of neighborhood decline.  From a personal and private perspective, however, urban growth creates new opportunities for residential and commercial development.  Many sectors of the local economy share in these opportunities, including young families seeking their first single-family residence at a price they can afford.  Given the multiplicity of...
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/14419

Was the NOAA Panel Correct about Contingent Valuation?
Provedor de dados: 31
Autores: Carson,   Richard T.; Hanemann,   W. Michael; Kopp,   Raymond J.; Krosnick,   Jon A.; Mitchell,   Robert C.; Presser,   Stanley; Ruud,   Paul A.; Smith,   V. Kerry; Conaway,   Michael; Martin,   Kerry.
The past few years have seen a highly charged debate about whether contingent valuation (CV) surveys can provide valid economic measures of people's values for environmental resources. In an effort to appraise the validity of CV measures of economic value, a distinguished panel of social scientists, chaired by two Nobel laureates, was established by NOAA, to critically evaluate the validity of CV measures of nonuse value. The Panel provided an extensive set of guidelines for CV survey construction, administration, and analysis, and distinguished a subset of items from their guidelines for special emphasis and described them as burden of proof requirements. Of particular interest was the Panel's requirement that CV surveys demonstrate "responsiveness to the...
Tipo: Working or Discussion Paper
Palavras-chave: Contingent valuation; Scope test; NOAA Panel; Environmental Economics and Policy; D6; H4.
Ano: 1996
URL: http://purl.umn.edu/10503

POLICIES TO PROMOTE ENVIRONMENTALLY SUSTAINABLE FERTILIZER USE AND SUPPLY TO 2020
Provedor de dados: 31
Autores: Bumb,   Balu L.; Baanante,   Carlos A.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/16358

THE ECONOMIC AND ETHICAL AMBIGUITIES OF AFRICAN DEBT FORGIVENESS
Provedor de dados: 31
Autores: Barrett,   Christopher B.
Tipo: Working or Discussion Paper
Palavras-chave: Financial Economics.
Ano: 1996
URL: http://purl.umn.edu/28345

EUROPEAN UNION ENVIRONMENTAL POLICY; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17- 18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Dona,   Wilma Viscardini.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/14436

Law of One Price in International Commodity Markets: A Fractional Cointegration Analysis
Provedor de dados: 31
Autores: Mohanty,   Samarendu; Smith,   Darnell B.; Peterson,   E. Wesley F.; Meyers,   William H.
This paper examine the Law of One Price (LOP) in the International Commodity markets using a fractional cointegration analysis.  Out of nine pairs of price series examined, fractional cointegration supports the existence of the LOP in eight cases as compared to three cases as in standard cointegration process.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/18400

R&amp;D Spillovers, Economic Growth, Convergence, and Divergence: A Time-Series Approach
Provedor de dados: 31
Autores: Mohtadi,   Hamid; Datta,   Anusua.
Tipo: Conference Paper or Presentation
Palavras-chave: International Development; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/50864

A DECISION SUPPORT AID FOR BEEF CATTLE INVESTMENT USING EXPERT SYSTEMS
Provedor de dados: 31
Autores: Falconer,   Lawrence L.; Long,   Charles R.; McGrann,   James M.
The beef cattle investment decision provides an excellent opportunity to increase the economic efficiency of beef cattle production. The investment questions that face beef cattle producers are of interest to beef cattle producers, educators, and financial institutions involved in lending to beef cattle producing firms. This study develops a decision support aid utilizing expert system technology to assist beef cattle producers in making well-founded investment decisions with respect to the firm's beef cattle herd.
Tipo: Journal Article
Palavras-chave: Beef cattle investment; Decision support; Export systems; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/15228

THE POLITICS OF UNDERINVESTMENT IN AGRICULTURAL RESEARCH
Provedor de dados: 31
Autores: de Gorter,   Harry; Swinnen,   Johan F.M.
This paper develops a political economy framework that determines the factors causing underinvestment in public research expenditures. Governments are unable to fully compensate for unequal income distribution effects of research because of either their inability to make credible commitments or of deadweight costs associated with compensation.
Tipo: Working or Discussion Paper
Palavras-chave: Political Economy; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/6848

Analysis of the Korean Beef Market: A Study of Hotel Buyers' Perspectives of Beef Imports from Three Major Sources Part II
Provedor de dados: 31
Autores: Kim,   Renee B.; Unterschultz,   James R.; Veeman,   Michele M.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/24085

The Role of the Supermarket Buyer
Provedor de dados: 31
Autores: McLaughlin,   Edward W.; Perosio,   Debra J.
This study investigates the standard procurement and merchandising practices of wholesale and retail supermarket dairy buyers in New York State. Although much anecdotal and trade information exists regarding how wholesale/retail buyers make decisions, their standard operating practices have not previously been well documented. Yet these decisions and resulting strategies at wholesale/ retail levels can significantly enhance or diminish marketing initiatives and, in particular, the impact of advertising and promotion programs of the dairy industry. The primary data for this study were gathered from dairy directors and buyers from 17 wholesale and retail supermarket companies serving New York State. Mail surveys were employed to determine the factors that...
Tipo: Technical Report
Palavras-chave: Agribusiness; Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/122826

Emerging Market and Policy Responses to Ethiopia's Grain Harvest of 1995-96
Provedor de dados: 31
Grain Marketing Research Project, Ministry of Economic Development and Cooperation, Addis Ababa
Tipo: Journal Article
Palavras-chave: Food security; Food policy; Ethiopia; Cereal price; Crop Production/Industries; Marketing; Q18.
Ano: 1996
URL: http://purl.umn.edu/54953

COVER and CONTENTS PAGES
Provedor de dados: 31
Includes:  Cover, title page and contents page
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/31647

Preliminary Evaluation of Alternative Models for Banana Production Forecasting in the Windward Islands
Provedor de dados: 31
Autores: Thomas-Louisy,   Luvette; Alexander-Louis,   Theresa.
Tipo: Journal Article
Palavras-chave: Banana Production; Production Forecasting; Banana in the Windward Islands; Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/45593

A Kibbutz Dilemma: Social Movement or Self-Interested Group?
Provedor de dados: 31
Autores: Avrahami,   Eli.
One of the characteristics of the kibbutz was that it belonged to a nation-wide movement, it was open to the outside world and was involved in all aspects of society. In view of the changes taking place in the kibbutzim and in their surroundings the kibbutz may forfeit its characteristics as an assertive and centralized, or at least federative, organization. In consequence the kibbutz may cease to be a social movement seeking to attain goals of universal value and turn into an organized self-interested pressure group. The dilemma faced by the kibbutz is whether it will be a system of egotistic people seeing themselves as shrewd-calculating-yuppies, or members of a social movement seeking to attain goals of universal value, considered by others as "freiers"
Tipo: Report
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/62056

BOOK REVIEWS
Provedor de dados: 31
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/22371

Time Series Evidence of Relationships Between U.S. and Canadian Wheat Prices
Provedor de dados: 31
Autores: Mohanty,   Samarendu; Smith,   Darnell B.; Peterson,   E. Wesley F.
In this paper, relationships between U.S. and Canadian wheat prices are examined using cointegration and error correction approach.  The use of an error correction model is appropriate because U.S. and Canadian wheat prices are first differenced stationary and cointegrated.  The results suggest that both U.S. durum and hard spring wheat prices respond to restore the equilibrium relationship with the corresponding Canadian price while the Canadian price does not respond to restore equilibria.  That is, the structure of the respective policies is such that Canadian markets are largely insulated from influences flowing from the United States while U.S. markets are not insulated from Canadian influences.  These results could be interpreted to support the...
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/18575

MICROFINANCE MARKET NICHES AND CLIENT PROFILES IN BOLIVIA
Provedor de dados: 31
Autores: Gonzalez-Vega,   Claudio; Meyer,   Richard L.; Navajas,   Sergio; Schreiner,   Mark; Rodriguez-Meza,   Jorge; Monje,   Guillermo F.
This paper presents and interprets descriptive statistics generated from data obtained in a survey of clients of five microfinance organizations believed to be among the best in Bolivia.  These lenders represent different combinations of organizational design, lending technology, and market area of operations.  Two are regulated financial intermediaries and three are NGOs.  Two operate in rural areas (PRODEM and Sartawi) and three operate in urban areas (BancoSol, FIE, and Caja Los Andes).  Two offer individual loans and three grant loans through joint liability groups.  The paper discusses household-enterprise profiles of a sample of 622 clients and identifies terms and conditions of loan contracts with these organizations to evaluate the depth and...
Tipo: Working or Discussion Paper
Palavras-chave: Financial Economics.
Ano: 1996
URL: http://purl.umn.edu/28332

Analysis of the Korean Beef Market: A Study of Hotel Buyers' Perspectives of Beef Imports from Three Major Sources Part 1
Provedor de dados: 31
Autores: Kim,   Renee B.; Unterschultz,   James R.; Veeman,   Michele M.; Jelen,   Paul.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/24129

ESTIMATION OF HOUSEHOLD BRAND-SIZE CHOICE MODELS FOR SPAGHETTI PRODUCTS WITH SCANNER DATA
Provedor de dados: 31
Autores: Park,   Changwon; Senauer,   Benjamin.
The A.C. Nielson household scanner panel is used to analyze factors affecting brand-size choices for spaghetti.  These data link product purchases, which are scanned, with household demographics and market information on the store where purchased.  A multinominal logit model and a nested logit model are specified and estimated.  In addition to the effects of inventory and brand loyalty, the most interesting results relate to the price elasticities of choice probabilities.  These elasticities are much more elastic than those found in traditional food demand analysis.  Different brands and sizes of spaghetti products on the same supermarket shelf are very close substitutes for the consumer.
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/14336

Debugging Mathematical Programming Models: Principles and Practical Strategies
Provedor de dados: 31
Autores: Pannell,   David J.; Kingwell,   Ross S.; Schilizzi,   Steven.
Bugs are an unavoidable aspect of mathematical programming (MP) modelling. In this paper we discuss the prevention and diagnosis of bugs in MP models. The topic is rarely addressed in the literature but is crucial to the success of modelling projects, especially for large models. We argue that finding a bug and understanding unexpected results (whether or not due to a bug) are very closely related activities. We identify different types of bugs and suggest practical strategies for dealing with each. Adopting procedures for prevention of bugs is essential, especially for large models. We outline the prevention strategies we have adopted and found successful for the MIDAS and MUDAS models.
Tipo: Journal Article
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/12306

Economic Impact of a Targeted Marketing Loan Program on North Dakota
Provedor de dados: 31
Autores: Saxowsky,   David M.; Koo,   Won W.; Taylor,   Richard D.
Tipo: Technical Report
Palavras-chave: Agricultural Finance; Marketing.
Ano: 1996
URL: http://purl.umn.edu/120981

IMPACTS OF THE FEDERAL AGRICULTURAL IMPROVEMENT AND REFORM ACT OF 1996 (FAIR ACT) ON THE NORTH DAKOTA AGRICULTURAL ECONOMY
Provedor de dados: 31
Autores: Koo,   Won W.; Duncan,   Marvin R.; Taylor,   Richard D.; Aakre,   Dwight G.
The Federal Agriculture Improvement and Reform Act of 1996 (FAIR Act) decouples government farm subsidy payments from both price and production and provides farmers with nearly complete planting flexibility.  Government spending under this act will be limited to $35.63 billion for 1996-2002 period. The net farm income for all six representative farms under the 1996 FAIR Act is projected to be higher than under the 1990 farm act early in the forecast period and lower after 1999 under the 1996 FAIR Act. Cropland prices are projected to fall 19.8% between 1996 and 2002 under the 1996 FAIR Act, while cropland prices are projected to fall 18.5% under the 1990 farm act.  Cash rental rates are projected to follow cropland prices.  Debt-to-asset ratios for most...
Tipo: Working or Discussion Paper
Palavras-chave: FAIR Act; Net farm income; Debt-to-asset ratio; Cropland prices; Land rental rates; Farm operating expenses; Capitalization rate; Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/23150

Technical Guide to C-SIDE (Software for Intake Distribution Estimation)
Provedor de dados: 31
Autores: Dodd,   Kevin W.
Tipo: Working or Discussion Paper
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/18653

AGRICULTURE IN AN ECOSYSTEMS FRAMEWORK
Provedor de dados: 31
Autores: Aillery,   Marcel P.; Hrubovcak,   James; Kramer,   Carol S.; Shoemaker,   Robbin A.; Tegene,   Abebayehu.
By broadening the definition of an ecosystem to include economic activities, can we better characterize the interactions and relationships among agricultural activities and important indicators of ecological system health?  This paper addresses research approaches for assessing the role of agriculture in an ecosystems context.  Environmental regulation and resource management policies have heightened the interest in understanding interactions among agricultural activities and the natural resource base, including the impacts of agriculture on environmental quality and the impacts on agriculture of ecosystem restoration efforts.  What are the most meaningful indicators of environmental quality?  Which agricultural practices and policies should be considered,...
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/31398

Wage and Price Control Policies in Socialist Transitional Economies
Provedor de dados: 31
Autores: Fardmanesh,   Mohsen; Tan,   Li.
This paper studies the structural impact of wage and price control policies in socialist transitional economies using a two-sector three-factor small open economy model. It illustrates the results quantitatively via simulation exercises. At the earlier stage of the transition when labor is immobile, a strict control on the price of the non-tradables and the wage rate minimizes the fall in employment and output. Also, a more severe control on the price of the non-tradables than on the wage rate alleviates the fall in the real wage at negligible costs in lost employment and output. At the later stage of the transition when labor becomes mobile, the liberalization of the price of the nontradables can proceed faster than that of the wage rate. This policy...
Tipo: Working or Discussion Paper
Palavras-chave: Liberalization; Structural adjustment; Price policy; Wage policy; Socialist transitional economies; Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/28515

A Spatial Equilibrium Model for IDlperfectly CODlpetitive Milk Markets
Provedor de dados: 31
Autores: Kawaguchi,   Tsunemasa; Suzuki,   Nobuhiro; Kaiser,   Harry M.
Traditional spatial equilibrium models have assumed that markets are either perfectly competitive or monopolistic. In this paper, a generalized spatial equilibrium model is developed which allows for any degree of market conduct from perfect competition to monopoly. The model incorporates a "dual structure" in which there are oligopolistic consignment sellers (producer marketing boards) and perfectly competitive producers receiving pooled returns. The usefulness of the model is demonstrated using Kyushu regional milk market data in Japan. Numerous spatial equilibrium solutions are generated for the Kyushu milk market assuming alternative sets of imperfectly competitive behavior with the "dual structure." It is demonstrated that actual interregional milk...
Tipo: Technical Report
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/122832

CONSUMER PREFERENCES FOR NON-CONVENTIONALLY GROWN PRODUCE
Provedor de dados: 31
Autores: Underhill,   Sheila E.; Figueroa,   Enrique E.
This study examines the potential for marketing fresh fruits and vegetables with labels indicating enhanced food and/or environmental safety attributes as compared to conventional produce. Four labels were investigated: Organic, Certified Organic, Certified Pesticide Residue-Free, and Grown with IPM. Results confirm findings of other surveys relating to concerns about pesticide residues. Seventy-one percent (71%) of respondents stated they believed that pesticide residues in food present a serious or moderate health hazard to consumers. In addition, 74% believed that pesticides pose a serious or moderate hazard to the environment, and 64% felt there was a serious or moderate hazard to farm workers. Results indicate there is a positive information effect...
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/27067

A COMPARATIVE STATIC ANALYSIS OF OKLAHOMA'S VEGETABLE INDUSTRY
Provedor de dados: 31
Autores: Henneberry,   Shida Rastegari; Schatzer,   Raymond Joe; El Beheisi,   Yousif.
The impact of hypothetical changes in yields, costs, and demand that might result from the organization of Oklahoma vegetable growers into cooperatives or other multifarmer marketing associations is estimated using a sector programming model. A comparative static analysis is used to evaluate the impact of these changes on planted acreage, growers' revenues, and consumers' and producers' surplus. The results of this analysis indicate that changes in demand are most effective in increasing revenues for Oklahoma growers.
Tipo: Journal Article
Palavras-chave: Comparative static analysis; Oklahoma vegetable crops; Produce cooperative association; Sector programming model; Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/15233

A Política de Preços Mínimos: Benefícios para Quem, e a que Custo?
Provedor de dados: 31
Autores: SIMA,   Technical Team.
Resultados das investigações do Projecto de Segurança Alimentar em Moçambique MAP-Direcção de Economia-Dpto. Estatística
Tipo: Report
Palavras-chave: Food security; Food policy; Mozambique; Research and Development/Tech Change/Emerging Technologies; Q18.
Ano: 1996
URL: http://purl.umn.edu/55194

HURDLE COUNT-DATA MODELS IN RECREATION DEMAND ANALYSIS
Provedor de dados: 31
Autores: Shonkwiler,   John Scott; Shaw,   W. Douglass.
When a sample of recreators is drawn from the general population using a survey, many in the sample will not recreate at a recreation site of interest. This study focuses on nonparticipation in recreation demand modeling and the use of modified count-data models. We clarify the meaning of the single-hurdle Poisson (SHP) model and derive the double-hurdle Poisson (DHP) model. The latter is contrasted with the SHP and we show the DHP is consistent with Johnson and Kotz's zero-modified Poisson model.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/31027

Risk measurement: an introduction to value at risk
Provedor de dados: 31
Autores: Linsmeier,   Thomas J.; Pearson,   Neil D.
This paper is a self-contained introduction to the concept and methodology of "value at risk," which is a new tool for measuring an entity's exposure to market risk. We explain the concept of value at risk, and then describe in detail the three methods for computing it: historical simulation; the variance-covariance method; and Monte Carlo or stochastic simulation. We then discuss the advantages and disadvantages of the three methods for computing value at risk. Finally, we briefly describe some alternative measures of market risk.
Tipo: Working or Discussion Paper
Palavras-chave: Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/14796

ON-FARM FACTORS INFLUENCING INVESTMENT IN CROP SOWING MACHINERY
Provedor de dados: 31
Autores: Kingwell,   Ross S.
Farmers in grain industries make important decisions about investment in crop sowing machinery. This paper shows how some on-farm factors affect profit-maximising levels of investment in crop sowing machinery. The paper examines the effect on optimal investment of discontinuities in sowing opportunities, varietal portfolios and soil portfolios.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/22364

AVAILABILITY AND MARKET POTENTIAL ON NON-AGRICULTURAL BUSINESSES IN NORTH DAKOTA
Provedor de dados: 31
Autores: Bhuyan,   Sanjib; Cobia,   David W.; Leistritz,   F. Larry.
Many North Dakota communities find it financially difficult to provide or maintain such necessary services as public safety, water and sewer services, garbage disposal, grocery and retail stores, local credit, medical care and similar other services due to gradual decline in both population and businesses.  Declining population also stresses the existing businesses as they compete for a shrinking customer base while the cost of operating a business is likely to be increasing. Cooperatively-owned businesses are means by which needed products and services can be provided at a reasonable cost and at the same time provide meaningful employment opportunities.  Thus, the cooperative approach may provide an option for rural communities in North Dakota for...
Tipo: Working or Discussion Paper
Palavras-chave: Trade analysis; Market potential; Cooperatives; Non- agricultural; Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/23348

INTRODUCING MONOPOLISTIC COMPETITION INTO THE GTAP MODEL
Provedor de dados: 31
Autores: Hertel,   Thomas W.; Swaminathan,   Padma V.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/28704

THE IMPACT OF KNAPWEED ON MONTANA'S ECONOMY
Provedor de dados: 31
Autores: Hirsch,   Steven A.; Leitch,   Jay A.
The economic impact of three invasive, exotic weeds--diffuse, spotted, and Russian knapweed (Centaurea diffusa, C. maculosa, and Acroptilon repens)--on Montana's economy was estimated using a procedure developed for another invasive weed species.  Published data and that from a survey of county weed boards were used to estimate direct negative impacts of over $14 million annually due to infestation of over 2 million acres of rangeland and wildland.  This amounts to about $10.63 on each infested grazing land acre and $3.95 on each infested wildland acre.  Direct plus secondary economic impacts, estimated using an input-output model, are about $42 million annually, which could support over 500 jobs in the state's economy. This first approximation suggests...
Tipo: Working or Discussion Paper
Palavras-chave: Knapweed (Centaurea diffusa; C. maculosa; And Acroptilon repens); Montana; Economic impact; Invasive weeds; Rangeland; Wildland; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/23289

COMPETITIVE BEHAVIOR IN THE FOOD RETAILING INDUSTRY
Provedor de dados: 31
Autores: Park,   Timothy A.; Weliwita,   Ananda.
We develop a flexible model to examine competitive conditions in the food retailing industry based on the Box-Cox transformation of the demand and industry equilibrium conditions.  The impact of key technological and market developments on shifts in the competitive index is examined.  Adoption of optical scanning technology was positively related to the market power index but the index was stable and consistent with competitive conditions over the 1982-1992 period.
Tipo: Working or Discussion Paper
Palavras-chave: Market power; Food retailing; Box-Cox model; Technological innovations; Agribusiness; Industrial Organization.
Ano: 1996
URL: http://purl.umn.edu/16680

The Social Networks of Rural Business Owners in East Central Alberta
Provedor de dados: 31
Autores: Deans,   Mae; Gill,   Dhara S.; Apedaile,   Leonard Peter.
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/24065

The Cost of Australian Farm Injuries
Provedor de dados: 31
Autores: Low,   J.M.; Griffith,   Garry R.
A telephone survey was conducted of 919 farms from three shires in the sheep/wheat belt of New South Wales. Data from the cohort study spanning 18 months measured the incidence and profile of farm work related injury, risk factors and the range of costs associated with injury occurrence. On average. 22.6 per cent of farm businesses reported one or more injuries per year, while 8.3 per cent reported one or more serious injuries per year. Seven categories of injury were identified as significant problem areas. These were manual handling, eye, motorcycle-related, sheep-related, cattle-related, tractor-related and horse-related injuries. The costs associated with injury occurrence that were measured included medical treatment, transport for treatment,...
Tipo: Journal Article
Palavras-chave: Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/12369

Support Prices as Policy Tools in Dairy Industry: Issues in Theoretical Modeling
Provedor de dados: 31
Autores: Premakumar,   V.; Chaudhary,   Sudhir.
A framework for modeling the dairy sector is developed, emphasizing the complexities unique to this Multiproduct industry.  Equilibrium conditions among competitive and joint dairy products are specified subject to mass balancing requirements, stable economic relationship and appropriate policy parameters.  The model is applied to Canada incorporating the country-specific dairy policy mix.
Tipo: Working or Discussion Paper
Palavras-chave: Canada; Multiproduct modeling; Dairy products; Technological constrains; Relative prices; Agricultural and Food Policy; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18617

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes:  Cover Page; Editorial Information; Lifetime Achievement Award: Dr. Carlton G. Davis; Lynn L. Reinschmiedt, 1996-97 President; Contents Pages
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/15224

STRUCTURE OF WAGES AND BENEFITS IN THE U.S. PORK INDUSTRY
Provedor de dados: 31
Autores: Hurley,   Terrance M.; Kliebenstein,   James B.; Orazem,   Peter F.
Pork production has been evolving from relatively small, family-run operations toward large-scale operations with several employees.  This study uses a national survey of pork producers and their employees to answer several questions about the structure of wages and benefits in this rapidly changing labor market.  The findings include:  1) wages do not differ across regions of the country but, instead, reflect differences in worker skills and firm size consistent with a nationally competitive labor market; 2) there is no evidence that large producers have market power in local labor markets that enable them to pay lower wages than competitors; 3) rather; large firms pay higher wages, offer better benefits, and safer working environments than smaller firms;...
Tipo: Working or Discussion Paper
Palavras-chave: Labor and Human Capital; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18273

THE IMPACT OF THE CANADA-U.S. HOG/PORK TRADE DISPUTE ON THE COMPOSITION OF U.S. PORK IMPORTS
Provedor de dados: 31
Autores: Larue,   Bruno; Gervais,   Jean-Philippe.
Trade theorists have demonstrated that different trade policy instruments have different effects on the quality and source of imports.  Countervailing duties (CVDs), like specific tariffs, should induce quality upgrading.  However, the magnitude and timing of the quality adjustments are influenced by the credibility of the duties that can be legally contested and modified after annual administrative reviews.  Index numbers are used to assess the timing and magnitude of the product mix and country mix substitution effects in U.S. pork imports in response to the U.S. CVDs on Canadian exports of live hogs and fresh, chilled, and frozen pork.
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/31414

China's Rural Shareholding Cooperatives as a Form of Multi-Stakeholder Cooperation
Provedor de dados: 31
Autores: Clegg,   Jenny.
Township and village enterprises (TVEs) are the fastest growing sector of China's economy. Their development has been shaped by their close ties with local governments and communities. However, as marketization processes dissolve these links, the increasing competitive pressures of the 1990s make the search for new forms of enterprise organization a priority. The Shareholding Cooperative System (SCS) has been proposed as a method of strengthening enterprise autonomy whilst preserving the predominance of public ownership, and of improving enterprise efficiency by tying performance to profitability whilst maintaining some principles of equity. In practice, the new opportunities opened up by reform are often monopolized by those already in positions of wealth...
Tipo: Report
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/62053

CROP GENETIC RESOURCE POLICY: TOWARDS A RESEARCH AGENDA
Provedor de dados: 31
Autores: Wright,   Brian D.
Since the 1970’s, the worldwide capacity of genebanks for ex situ conservation of crop genetic resources has increased greatly. This has increased the accessibility of landraces and wild and weedy relatives to crop breeders; in situ conservation, though essential, is not an efficient means of furnishing genebanking services. But utilization of genebank resources has not kept pace. The set of popular cultivars in major crops is typically rather small, and their ancestry encompasses only a small fraction of the genetic diversity currently available in other cultivars. Discussions of farmers’ rights that focus on compensation for current incorporation of farmers’ varieties in new cultivars have diverted attention from the question of why so little of the...
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/16100

HOUSEHOLD MODELING FOR THE DESIGN OF POVERTY ALLEVIATION STRATEGIES
Provedor de dados: 31
Autores: de Janvry,   Alain; Sadoulet,   Elisabeth.
Insufficient access to assets is the main determinant of poverty.  We analyze the role of access to assets in explaining household labor allocation strategies, sources of income, levels of income achieved, and poverty headcount ratios among classes of Mexican rural households.  To assess the gains from asset redistribution, we both measure the direct income effects from redistribution and simulate the general equilibrium effects of redistribution in a computable non-separable household model.  Results show that land redistribution allows to achieve both equity and efficiency gains. However, there are economies of scale in self-employment in microenterprise, human capital assets for labor market participation, and social capital for international migration,...
Tipo: Working or Discussion Paper
Palavras-chave: Consumer/Household Economics; Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/25121

COST BY MILK SOLD AND HERD SIZE, 1995
Provedor de dados: 31
Autores: Nott,   Sherrill B.
This staff paper presents the 1995 financial and production results of a sample of Michigan dairy farms in two ways.  First, the sample is divided into groups by size of herd;  averages for each group of several costs and factors are shown.  Second, the sample is divided by milk sold per cow;  factors that vary with milk production are discussed.  Appendix tables give all the cost data available from the accounting summary. A major conclusion from this data is that neither size nor production per cow consistently explains much about the major variability in profits that occur from farm to farm, given the analysis done.  Average results on a few farms with over 300 cows may be of cursory interest. (Note: Figure 1 does not appear in the electronic file.)
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/11775

NONCONSTANT PRICE EXPECTATIONS AND ACREAGE RESPONSE: THE CASE OF COTTON PRODUCTION IN GEORGIA
Provedor de dados: 31
Autores: Parrott,   Scott D.; McIntosh,   Christopher S.
An adaptive regression model is used to examine the relative importance of cash and government support prices in determining cotton production over time. The results show that the cash price is more important as a source of price information for cotton producers than the government program price. The cash price was shown to have a greater influence on acreage response in every year, including periods thought to be dominated by government commodity programs.
Tipo: Journal Article
Palavras-chave: Adaptive regression; Cotton acreage response; Price expectations; Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/15235

The Choice of Tillage, Rotation, and Soil Testing Practices: Economic and Environmental Implications
Provedor de dados: 31
Autores: Wu,   JunJie; Babcock,   Bruce A.; Lakshminarayan,   P.G.
Which management practices farmers adopt has a significant effect on agricultural pollution. Research has analyzed factors influencing adoption of a single management practice. But often adoption decisions about many practices are made simultaneously, which suggests use of a polychotomous-choice model to analyze decisions. We apply such a model to the choice of alternative management practices on cropland in the Central Nebraska Basin and control for self-selection and the interaction among alternative practices. We use the results of the choice model to estimate the economic and environmental effect so adopting alternative combinations of management practices.  Our results suggest that crop rotation and soil N testing are complementary practices, perhaps...
Tipo: Working or Discussion Paper
Palavras-chave: Conservation tillage; Rotation; Soil N testing; Corn yield; Fertilizer use; Soil erosion; The polychotomous-choice selectivity model; Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18444

Fertilizer Use and Maize Production in Sub-Saharan Africa
Provedor de dados: 31
Autores: Heisey,   Paul W.; Mwangi,   Wilfred.
In sub-Saharan Africa, greater use of mineral fertilizers is crucial to increasing food production and slowing the rate of environmental degradation. Regional growth rates in fertilizer consumption have never been particularly high, in part because the real price of fertilizer is higher in Africa than in many other developing regions. As subsidies have been removed and exchange-rate distortions corrected over the past decade or more, relative prices paid by farmers have risen to reflect more closely the economic cost of fertilizer. Consumption growth has thus slowed even more.  Nonetheless, during the period of declining growth in consumption, fertilizer use on cereals, particularly maize, has become relatively more important than use on cash crops....
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/7688

EVIDENCE ON THE ACCURACY OF EXPENDITURES REPORTED IN RECREATIONAL SURVEYS
Provedor de dados: 31
Autores: Champ,   Patricia A.; Bishop,   Richard C.
This article discusses the results of four experiments to test the accuracy of recreational expenditures reported in survey relative to expenditures reported in dairies. We found few situations in which the reported expenditures in the surveys and diaries differ significantly. In general, we conclude that individuals are able to accurately report recreational expenditures in ex post mail surveys. Given the wide usage of survey expenditure data by economists, we find this results encouraging.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/30989

DISTRIBUTION OF COMMUNITY WATER SYSTEMS ACROSS THE UNITED STATES WITH EMPHASIS ON SIZE, WATER PRODUCTION, OWNERSHIP, AND TREATMENT
Provedor de dados: 31
Autores: Boisvert,   Richard N.; Schmit,   Todd M.
An understanding of the diversity of community water systems (CWS) in the United States is essential when evaluating the financial implications of the 1986 and subsequent amendments to the Safe Drinking Water Act (SDWA). This diversity, in terms of size, primary water source, ownership, and existing levels of treatment, shape the nature of the technical, institutional, and financial issues that must be confronted in moving these systems toward compliance with SDWA regulations. This report provides a descriptive summary of these operating and design characteristics ofCWS's across the country. The data are organized to help provide a typology of representative public water systems that can be examined to better understand the regional effects of policy...
Tipo: Technical Report
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/122989

The Implications of the Resource Management Act to Property Rights in Agriculture Land Use in New Zealand
Provedor de dados: 31
Autores: Gan,   Christopher E.C.; Cullen,   Ross.
The Resource Management Act 1991 sets new standards for environmental regulations in New Zealand. The emphasis of the legislation is on property rights and market solutions. This paper is concerned with the limits to market solutions in the presence of externalities and potentially high transaction costs.
Tipo: Journal Article
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/12360

END MATERIALS
Provedor de dados: 31
Includes: Guidelines for Manuscript Submission and Back Cover
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/31407

Global Food Security: Implications for Australia - Record of a seminar conducted by the Crawford Fund for International Agricultural Research, Parliament House, Canberra, 28 May 1996
Provedor de dados: 31
Tipo: Report
Palavras-chave: Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/117730

COMPARATIVE FINANCIAL PERFORMANCE ANALYSIS OF CANADIAN CO-OPERATIVES, INVESTOR-OWNED FIRMS, AND INDUSTRY NORMS
Provedor de dados: 31
Autores: Harris,   Andrea; Fulton,   Murray E.
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/31783

SEASONAL MIGRATION OF RETIREES: A REVIEW OF THE LITERATURE
Provedor de dados: 31
Autores: Espinoza,   Maria-Cristina; Stallmann,   Judith I.
Anecdotes suggest that tourism experiences may affect the migration decisions of retirees.  Seasonal migration by retirees may be an intermediate step between tourism and permanent migration.  A review of the literature on seasonal migration finds that some seasonal migrants become permanent migrants.  In general, seasonal and permanent migrants come from two separate migration streams and are two different lifestyles.   Seasonal migration generally does not lead to permanent migration.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/24010

Teaching and Learning Through Cooperative Research Ventures
Provedor de dados: 31
Autores: Lindsey,   Patricia J.
Classroom-based learning can be enhanced for advanced agricultural economics and agribusiness undergraduate students by engaging them as partners in an applied research project. The approach described combines research, outreach and resident instruction in a single activity that produces and extends knowledge while educating students. Many of the changes suggested for agricultural, agricultural economics and agribusiness instruction are encompassed by this approach.
Tipo: Journal Article
Palavras-chave: Teaching methods; Case studies; Land grant mission; Active learning; Outreach; Agribusiness; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/90398

Reframing Agricultural Extension Education Services in Industrially Developed Countries: A Canadian Perspective
Provedor de dados: 31
Autores: Gill,   Dhara S.
Tipo: Working or Discussion Paper
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/24111

COMMENTS ON IMPROVING FOOD ACCESS TO POOR AND VULNERABLE GROUPS
Provedor de dados: 31
Autores: Staatz,   John M.
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/11653

O Desafio da Produtividade em Moçambique: Analise dos Principais Indicadores
Provedor de dados: 31
Autores: SIMA,   Technical Team.
Resultados das investigações do Projecto de Segurança Alimentar em Moçambique MAP-Direcção de Economía-Dpto. Estatística
Tipo: Report
Palavras-chave: Food security; Food policy; Mozambique; Productivity Analysis; Q18.
Ano: 1996
URL: http://purl.umn.edu/55199

IDENTIFYING IMPLICIT COLLUSION UNDER DECLINING OUTPUT DEMAND
Provedor de dados: 31
Autores: Weliwita,   Ananda; Azzam,   Azzeddine M.
The "trigger price" oligopoly model is used to develop a test for oligopolistic as well as oligopsonistic conduct by observing how an industry responds to unexpected declines in output demand. The hypothesis that U.S. beef packers maintain cooperative pricing strategies is rejected.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/31029

REDUCING POVERTY AND PROTECTING THE ENVIRONMENT: THE OVERLOOKED POTENTIAL OF LESS-FAVORED LANDS
Provedor de dados: 31
Autores: Hazell,   Peter B.R.; Garrett,   James L.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Food Security and Poverty; Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/16377

EXHAUSTIBLE RESOURCE ALLOCATION, INTERGENERATIONAL EQUITY, AND SUSTAINABILITY
Provedor de dados: 31
Autores: Knapp,   Keith C.
An OLG model with exhaustible resources and solar energy is developed, and equilibrium time paths are characterized numerically using recursive methods.  For the parameter values considered, resource prices increase over time, and extractions, output, and utility decline over time until a steady-state is reached.  Decreasing the intertemporal elasticity of substitution or raising consumers' subjective discount rate hastens exhaustion of the resource stock.  Market equilibrium can result in much quicker use of the stock than social optimality under a constant discount rate, with consequent higher utility for early generations and lower utility for future generations in contrast to social optimality.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/31654

Identifying Consumer Characteristics Associated With Japanese Preferences Towards Milk Products by Yasuhito Watanabe Nobuhiro Suzuki and Harry M.
Provedor de dados: 31
Autores: Watanabe,   Yasuhito; Suzuki,   Nobuhiro; Kaiser,   Harry M.
Tipo: Technical Report
Palavras-chave: Consumer/Household Economics; Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/122988

STRUCTURAL CHANGES IN U.S. AGRICULTURE: IMPLICATIONS FOR SMALL FARMS
Provedor de dados: 31
Autores: Gebremedhin,   Tesfa G.; Christy,   Ralph D.
A descriptive analysis and a survey of literature were used in this assessment of the transformation of the structure of production agriculture. The changes in production agriculture have important implications for resource use, population distribution in rural communities, and the survival of small farms. The shifting structural change in production agriculture as a response to economic and technological adjustments is not a temporary phenomenon. The economic and natural base of agriculture will change toward greater capital intensity and concentration of ownership, and will raise public policy questions in relation to the survival of a large farm population.
Tipo: Journal Article
Palavras-chave: Small farms; Structural changes; Production agriculture; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/15226

ENVIRONMENTAL REGULATORY REFORM AND THE UNHOLY TRINITY: UNFUNDED MANDATES, RISK ASSESSMENT, AND PROPERTY RIGHTS
Provedor de dados: 31
Autores: Infanger,   Craig L.
Major regulatory reform issues which involve environmental policy include issues of unfunded mandates, risk assessment, and property rights. Each of these proposed reforms involves major changes in environmental policies with impacts on different groups. Property rights is the core issue in Congress and state legislatures, with both regulatory takings and just compensation being the major parameters. Economists can participate effectively in this policy debate with successful research and education programs addressing the divisive issues.
Tipo: Journal Article
Palavras-chave: Environmental regulatory reform; Property rights; Risk assessment; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/15223

Food Security and Nutrition Implications of Intrahousehold Bias: A Review of Literature
Provedor de dados: 31
Autores: Haddad,   Lawrence James; Pena,   Christine; Nishida,   Chizuru; Quisumbing,   Agnes R.; Slack,   Alison.
The success of development policy depends on the ability to successfully anticipate the response of individuals to changing incentives. Often, however, actual responses differ from anticipated responses. One important reason for this divergence is a poor understanding of how rights, responsibilities, and resources are allocated within institutions such as the household. The insights derived from intrahousehold research between the late 1970s and the mid-1980s on the determinants of food and nutritional status served as an important catalyst for the general development of the intrahousehold approach to development policy analysis. Despite serving as a building block for the wider study of intrahousehold resource allocation, there has not been an in-depth...
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/42682

AGRICULTURAL TRADE LIBERALISATION AND THE URUGUAY ROUND
Provedor de dados: 31
Autores: Tanner,   Carolyn.
With the Punta del Este Declaration, agriculture was accorded prominence in the GATT negotiations and, for the first time, national support policies were on the agenda. In this paper, the progress of the negotiations on agriculture is reviewed in an attempt to understand the factors which shaped the final outcome and to assess the likely impact of the round on liberalising agricultural trade. Although the immediate impact is likely to be modest, the round will provide longer term benefits to agricultural trade through the extension of the GATT rules-based system to agriculture. The framework which has been laid should provide a sound basis for future negotiations. Within the multilateral framework, the pace of change is a function of the willingness of all...
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/22359

THE BIOECONOMICS OF RECIRCULATING AQUACULTURE SYSTEMS
Provedor de dados: 31
Autores: Kazmierczak,   Richard F., Jr.; Caffey,   Rex H.
The goal of this study was to produce a detailed aquaculture production model incorporating constraints unique to closed system culture and to conduct a formal economic analysis of closed system operation.  Results generated by this model indicate that less than perfect management ability can eliminate the normal advantages associated with using high protein feed.  While higher protein levels produce faster growth, and for this reason are often used in the industry, the increased direct feed costs and indirect costs due to metabolic feedbacks produce lower daily returns if high protein feed use continues through harvest.  This model showed that inefficiency in solids removal negatively affects returns, but the majority of negative impacts were linked to...
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management; Production Economics.
Ano: 1996
URL: http://purl.umn.edu/31681

Do Community Characteristics Determine Environmental Outcomes? Evidence from the Toxics Release Inventory
Provedor de dados: 31
Autores: Arora,   Seema; Cason,   Timothy N.
This research uses neighborhood characteristics (at the zipcode level) to explain changes in toxic releases between 1990 and 1993. It combines the Toxics Release Inventory data with demographic data from the 1990 US Census. We first analyze the location of manufacturing facilities in a particular neighborhood using a sample selection model, and then attribute changes in the level of emissions between 1990 and 1993 to the demographic and socio-economic characteristics of the neighborhood in 1990. The results indicate that variables likely to affect the propensity for communities to engage in political action significantly influence environmental performance. Economic characteristics of neighborhoods (such as income levels and unemployment) also affect...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Q00.
Ano: 1996
URL: http://purl.umn.edu/10531

RISK MANAGEMENT PROGRAMS IN EXTENSION
Provedor de dados: 31
Autores: Anderson,   Kim B.; Mapp,   Harry P., Jr.
The evolution of Cooperative Extension Service techniques used to teach decision making in a risk environment is examined. Interviews of selected Cooperative Extension economists indicate that research methods used to evaluate and describe risk are more complex than those used in extension programs. Research is an essential component of the development and implementation of extension programs. Because most producers have some understanding of risk, and many use financial strategies to manage risk, and important product of risk research has been educating extension economists and researchers. When developing risk management programs, it is stressed that “"simplicity is powerful."”
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/31000

CANADIAN/UNITED STATES DATA CONVERSION TABLES
Provedor de dados: 31
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16960

FRONT COVER
Provedor de dados: 31
Front Cover and Contents Page
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/22367

GROWTH, INEQUALITY, AND POVERTY IN LATIN AMERICA: A CAUSAL ANALYSIS, 1970-94
Provedor de dados: 31
Autores: de Janvry,   Alain; Sadoulet,   Elisabeth.
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty; International Development.
Ano: 1996
URL: http://purl.umn.edu/25097

MIDDLE EAST WATER CONFLICTS AND DIRECTIONS FOR CONFLICT RESOLUTION
Provedor de dados: 31
Autores: Wolf,   Aaron T.
In looking toward 2020, one of the most severe problems to be faced is an impending shortage of adequate supplies of fresh water essential for drinking and for growing crops. The Middle East, where a few waterways serve large areas of land belonging to a number of nations, is the place where strife over water is most likely to erupt. This paper examines the past--how water in the          Middle East came to be divided as it is today--and looks at possible solutions for alleviating a water crisis and the resulting political tensions.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/16240

The Feeding of Leucaena (Leucaena Leucocephala) Forage to Ruminants
Provedor de dados: 31
Autores: Garcia,   Gary W.; Lallo,   C.H.O; Benn,   A.
Tipo: Journal Article
Palavras-chave: Ruminant Feed; Forages; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/45590

COMMERCIAL BANKS' RESPONSE TO COSTLY DEPOSITS IN A DEREGULATED ENVIRONMENT
Provedor de dados: 31
Autores: Betubiza,   Eustacius N.; Leatham,   David J.
The study examines balance sheet changes at Texas commercial banks following the 1980 bank deregulation.  A comparison of selected deposit and asset variables for 1978 (pre-deregulation) and 1987 (post- deregulation) reveals a rapid increase in costly deposits and a decline in the proportion of loans in general, and agricultural loans in particular, relative to total bank assets.  Although a weak Texas economy during this time period contributed to the observed asset reallocation, banks were also responding to the increased deposit costs and interest rate volatility following deregulation.  This conclusion is consistent with previous findings cited in the study.
Tipo: Working or Discussion Paper
Palavras-chave: Commercial banks; Agricultural loans; Bank deregulation; Financial Economics.
Ano: 1996
URL: http://purl.umn.edu/23985

Cross-Border Environmental Management and the Informal Sector: The Ciudad Juarez Brickmakers' Project
Provedor de dados: 31
Autores: Blackman,   Allen; Bannister,   Geoffrey J.
The considerable difficulties associated with cross-border environmental management are compounded when polluters are unlicensed micro-enterprises such as auto repair shops and traditional brick kilns; such "informal sector" firms are virtually impossible to regulate in the conventional manner. This paper describes an example of an innovative and promising approach to the problem: the Cd. Juarez Brickmakers' Project, a private-sector-led, binational initiative aimed at abating highly polluting emissions from Cd. Juarez's approximately 350 informal brick kilns. We draw three lessons from the Project's history. First, private-sector-led cross-border initiatives can work -- indeed they may be more effective than public sector initiatives -- but they require...
Tipo: Working or Discussion Paper
Palavras-chave: US-Mexican border; Informal sector; Environment; Brickmaking; Environmental Economics and Policy; O17; O54; L61; Q25; Q28.
Ano: 1996
URL: http://purl.umn.edu/10600

ECONOMIC ANALYSIS IN POLICY EVALUATION, DAMAGE ASSESSMENT AND COMPENSATION: A COMPARISON OF APPROACHES
Provedor de dados: 31
Autores: Hanemann,   W. Michael; Keeler,   Andrew G.
Tipo: Working or Discussion Paper
Palavras-chave: Public Economics; Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/6862

AN OPERATIONAL MODEL OF SUSTAINABLE DEVELOPMENT: SOME THOUGHTS ON GETTING THE INCENTIVES FOR PUBLIC POLICY RIGHT; Proceedings of the  Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Schuh,   G. Edward; Archibald,   Sandra O.
As background for addressing agricultural policy and sustainable development issues, we address in this paper some general issues we believe it important to consider in developing a broad and consistent conceptual framework for the analysis of sustainability. The objective of this paper is to propose a comprehensive conceptual framework for bringing sustainability issues into practical public policy formulation.  A "people first" view is proposed: one that assumes that the ultimate purpose of natural resources and the economic system is first the well-being of mankind.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; International Development.
Ano: 1996
URL: http://purl.umn.edu/14447

END MATERIALS
Provedor de dados: 31
Includes:  Reviewers, June 1995-July 1996; Guidelines for Submission of Manuscripts; Executive Committee; Membership and Subscription Information
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/15118

The Relative Efficiency of Voluntary vs. Mandatory Environmental Regulations
Provedor de dados: 31
Autores: Wu,   JunJie; Babcock,   Bruce A.
Conservation program administered by USDA have traditionally been voluntary, with USDDA providing technical and fiscal assistance to farmers.  This tradition is continued din the Federal Agriculture Improvement and Reform Act of 1996.  Under these programs, farmers commit themselves to adopting a land management practice and, in turn, the government provides technical and financial assistance. Our analysis suggest that these voluntary programs are more efficient than a program that mandates adoption if and only if the per acre social cost of government expenditure under these program is less than the largest per acre farmer loss under the mandatory approach plus the additional implementation and enforcement cost.  This necessary and sufficient condition is...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/18500

A SYSTEMATIC REPRESENTATION OF METROPOLITAN AREAS: THE CASE OF THE CENTRAL APULIA SYSTEM; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Carbonara,   Sebastiano; de Fano,   Giovanna.
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/14359

Water and land in South Africa : economywide impacts of reform -- a case study for the Olifants river
Provedor de dados: 31
Autores: Mukherjee,   Natasha.
"July 1996." Includes bibliographical references (p. 37-41).
Tipo: Working or Discussion Paper
Palavras-chave: Equilibrium (Economics) -- Models; Computable general equilibrium (CGE); South Africa; Watershed management; Land use; Water; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/97763

DAIRY '96, PART I: REFERENCE OF 1996 DAIRY MANAGEMENT PRACTICES
Provedor de dados: 31
Autores: Ott,   Stephen L.
The NAHMS Dairy '96 Study was designed to provide both participants and the industry with information on the nation's dairy animal population for education and research.  The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically valid sample yielding 2,542 producers.  Included in the study were 20 states that represented 83.1 percent of the U.S. milk cows as of January 1, 1996.  NASS interviewers collected data for Part I via a questionnaire administered on-farm from January 1 through 26, 1996.   Contact for this paper: Steven Ott
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Milk; Feed; Weaning; Culls; Health; Vaccination; Morbidity; Mortality; Births; Housing; Biosecurity; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/32758

EVALUATION OF THE POSSIBLE THREAT OF NAFTA ON U.S. CATFISH INDUSTRY USING A TRADITIONAL IMPORT DEMAND FUNCTION
Provedor de dados: 31
Autores: Ligeon,   Carel; Jolly,   Curtis M.; Jackson,   John D.
The effects of increased exports from NAFTA member countries on the U.S. domestic catfish industry were evaluated. Results showed that the quantity of catfish imported will fall if the domestic price of catfish falls relative to the import price. Past imports have no effect on present imports. The income elasticity was negative indicating that imported catfish may be an inferior good. Doubling present levels of imports from NAFTA member countries is not a threat to the U.S. catfish industry.
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/27066

MARKET ALLOCATION RULES FOR NONPRICE PROMOTION WITH FARM PROGRAMS: U.S. COTTON
Provedor de dados: 31
Autores: Ding,   Lily; Kinnucan,   Henry W.
Rules are derived to indicate the optimal allocation of a fixed promotion budget between domestic and export markets when the commodity in question represents a significant portion of world trade and is protected in the domestic market by a deficiency-payment program. Optimal allocation decisions are governed by advertising elasticities in the domestic and export markets and the export market share. Promotion’'s ability to lower deficiency payments is inversely related to the absolute value of demand elasticities in the domestic and export markets and directly related to advertising elasticities and certain policy parameters. The empirical application suggests subsidies for nonprice export promotion may be efficiency increasing in a second-best sense. That...
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/31019

ENVIRONMENTAL POLICY REFORM: A TAXONOMY OF ECONOMISTS' PERSPECTIVES
Provedor de dados: 31
Autores: Shabman,   Leonard A.; Stephenson,   Kurt.
As the environmental policy recommendations of economists become more acceptable, differences in the professional understanding of, and support for, different policy forms are becoming more apparent. These different approaches to environmental policy and research are described around a taxonomy of four perspectives: "rational analysts," "cost analysts", "market managers," and "free market environmentalists." These perspectives are compared and contrasted. Recognition of these differences can result in a better appreciation of the different research agendas of economists and can improve clarity in teaching and policy advising.
Tipo: Journal Article
Palavras-chave: Economic incentives; Environmental policy; Regulation; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/15225

WORLD TRENDS IN FERTILIZER USE AND PROJECTIONS TO 2020
Provedor de dados: 31
Autores: Bumb,   Balu L.; Baanante,   Carlos A.
Tipo: Working or Discussion Paper
Palavras-chave: Production Economics; Resource /Energy Economics and Policy; Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/16353

Use of public assistance and private aid by legal and unauthorized immigrants who work in agriculture
Provedor de dados: 31
Autores: Moretti,   Enrico; Perloff,   Jeffrey M.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural labor; Government aid; Immigration; Insurance; Irca; Welfare economics; Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/47284

Integrating Research and Education
Provedor de dados: 31
Autores: Schroeder,   Ted C.
University faculty have numerous responsibilities, but development of our own and our students’ human capital is our primary job. To effectively develop human capital of others requires investing heavily in our own capital. This includes being actively involved in discovering knowledge. In addition, as agricultural economists, our clientele demand relevant research output which requires regularly informing them about our research. Conducting research, publishing and communicating findings to interested parties better equips us to provide a quality teaching program. This article presents an accumulation of evidence supporting this view and provides insights about how these activities might be integrated.
Tipo: Journal Article
Palavras-chave: Education; Teaching; Research; Scholars; Agribusiness; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/90382

From Process Consultation to a Clinical Model of Development Practice
Provedor de dados: 31
Autores: Cooke,   Bill.
This paper argues that two related concepts, process consultation and, in particular, the clinical perspective, developed by the organisational psychologist Edgar Schein, can improve the understanding, teaching and conduct of development practice. Process consultation - which is more than just the application of so called process approaches - and the clinical perspective are described, and the case for them is put, in relation to contrasts with ethnography and action research and in the light of contemporary debates about development studies and practice. Five particular aspects of the clinical model - the primacy of the "helpful intervention", the subservience of science to helping, its client centredness, it recognition of interventionists' financial and...
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/30564

Minnesota Agricultural Economist 685
Provedor de dados: 31
Autores: Morse,   George W.; Conlin,   Bernard J.
Enhancing the Dairy Industry: Lessons From the Field
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/13202

SECRETARY-TREASUER'S REPORT (SOUTHERN AGRICULTURAL ECONOMICS ASSOCIATION)
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/15253

HIGHER PRICES FROM ENTRY: PRICING OF BRAND-NAME DRUGS
Provedor de dados: 31
Autores: Perloff,   Jeffrey M.; Suslow,   Valerie Y.; Seguin,   Paul J.
When a new firm enters a market and starts selling a spatially-differentiated product, the prices of existing products may rise due to a better match between consumers and products.  Entry may have three unusual effects.  First, the new price is above the monopoly price if the two firms collude and may be above the monopoly price even if the firms play Bertrand. Second, the Bertrand and collusive price may be identical. Third, prices, combined profits, and consumer surplus may all rise with entry.  Consistent with our theory, the real prices of some anti-ulcer drugs rose as new products entered the market.
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis; Industrial Organization.
Ano: 1996
URL: http://purl.umn.edu/25104

Valuing Public Price Reporting: The Iowa Experience
Provedor de dados: 31
Autores: Lawrence,   John D.; Shaffer,   John A.; Hayenga,   Marvin L.
Auction market users and operators were surveyed regarding their source and use of livestock auction price information. Although important for marketing and to a lesser extent production decisions, only 30 percent preferred publicly reported prices over reports from market operators or other sources. The small share of market users willing to pay for public price reports suggests acceptable substitutes are available. Based on these results it is unlikely that user fees will be able to replace the current level of public support for auction market price reporting.
Tipo: Journal Article
Palavras-chave: Price reporting; Willingness to pay; Agribusiness; Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/90376

END MATERIALS
Provedor de dados: 31
Includes: Guidelines for Submission of Manuscripts; Southern Agricultural Economics Association Executive Committee and Membership and Subscription Information
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/15230

Transforming Poultry Production and Marketing in Developing Countries: Lessons Learned with Implications for Sub-Saharan Africa
Provedor de dados: 31
Autores: Farrelly,   Laura L.
The aim of this case study is to examine a few of the developing countries which have been particularly successful at developing their poultry sectors and to draw some lessons from these examples about the technologies, policies, and coordinating mechanisms that facilitated the transformation process.
Tipo: Report
Palavras-chave: Food security; Food policy; Poultry production; Livestock Production/Industries; Downloads May 2008-July 2009: 131; F0.
Ano: 1996
URL: http://purl.umn.edu/54687

The Impact of Millet, Sorghum, and Cowpea Research and Technology Transfer in Niger
Provedor de dados: 31
Autores: Mazzucato,   Valentina; Ly,   Samba.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies; Downloads July 2008 - June 2009: 9.
Ano: 1996
URL: http://purl.umn.edu/11427

Trends in Real Food Prices in Six Sub-Saharan African Countries
Provedor de dados: 31
Autores: Jayne,   Thomas S.; Mukumbu,   Mulinge; Duncan,   John; Staatz,   John M.; Howard,   Julie A.; Lundberg,   Mattias K.A.; Aldridge,   Kim; Nakaponda,   Bethel; Ferris,   John N.; Keita,   Francis; Sanankoua,   Abdel Kader.
The objectives of the study are: to assess the direction and magnitude of changes in real staple food prices since the implementation of food sector policy reforms in Africa; to identify the major factors affecting changes in these food prices; and to assess the resulting effects of food system reform on household food security.
Tipo: Report
Palavras-chave: Food security; Food policy; Food Security and Poverty; Downloads July 2008-June 2009: 9; R11.
Ano: 1996
URL: http://purl.umn.edu/54695

The Government Agribusiness Interface: a Review of Conceptual Issues and Viewpoints for the Australian Food Manufacturing Sector
Provedor de dados: 31
Autores: Schroder,   William R.; Mavondo,   Felix.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/12405

Implications of the New Growth Theory to Trade, Trade Research, and Trade Policy: Discussion
Provedor de dados: 31
Autores: Schuh,   G. Edward.
Tipo: Conference Paper or Presentation
Palavras-chave: International Development; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/50867

OBITUARY - JOHN PATRICK ('JACK') MAKEHAM
Provedor de dados: 31
Autores: Malcolm,   Bill; Piggott,   Roley R.
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/22373

1995 ANNUAL REPORT OF THE SOUTHWESTERN MINNESOTA FARM BUSINESS MANAGEMENT ASSOCIATION
Provedor de dados: 31
Autores: Olson,   Kent D.; Talley,   Dary E.; Christensen,   James L.; Weness,   Erlin J.; Fales,   Perry A.; Nordquist,   Dale W.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management.
Ano: 1996
URL: http://purl.umn.edu/13248

The Role of Health Risk Assessment and Cost-Benefit Analysis in Environmental Decision Making in Selected Countries: An Initial Survey
Provedor de dados: 31
Autores: Mazurek,   Janice V.
This paper seeks to inform the current "regulatory reform" effort in the U.S. by describing how information from risk assessments and cost-benefit analyses is used by decision makers in six other industrialized countries. In Japan, Germany, the United Kingdom, Netherlands, Canada and the European Union decision makers deal with uncertainties associated with risk assessments differently than in the U.S. They are less likely to employ "default assumptions" to bridge uncertainties and instead tailor risk  evaluations to the chemical in question. Furthermore, while U.S. agencies are sometimes required to pair information from risk assessments with data from cost-benefit analyses in order to estimate how much it costs to stem or avert environmental and health...
Tipo: Working or Discussion Paper
Palavras-chave: Regulatory reform; Risk assessment; Cost-benefit analysis; International environmental; Regulation; Environmental Economics and Policy; Q28.
Ano: 1996
URL: http://purl.umn.edu/10475

ALTERNATIVES FOR SMALL FARM SURVIVAL: GOVERNMENT POLICIES VERSUS THE FREE MARKET: DISCUSSION
Provedor de dados: 31
Autores: Ahearn,   Mary Clare.
Tipo: Journal Article
Palavras-chave: Farm Management.
Ano: 1996
URL: http://purl.umn.edu/15237

Returns to Oilseed and Maize Research in Uganda
Provedor de dados: 31
Autores: Laker-Ojok,   Rita.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies; Downloads July 2008-June 2009: 6.
Ano: 1996
URL: http://purl.umn.edu/11399

INTERNATIONAL COMMERCE IN PROCESSED FOODS: PATTERNS AND CURIOSITIES
Provedor de dados: 31
Autores: Henderson,   Dennis R.; Sheldon,   Ian M.; Pick,   Daniel H.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/51211

Measuring Market Power Effects in Differentiated Product Industries: An Application to the Soft Drink Industry
Provedor de dados: 31
Autores: Cotterill,   Ronald W.; Franklin,   Andrew W.; Ma,   Li Yu.
Tipo: Working or Discussion Paper
Palavras-chave: Industrial Organization.
Ano: 1996
URL: http://purl.umn.edu/25229

THE STATUS AND CONDITION OF NEW JERSEY'S FOOD MANUFACTURING INDUSTRY: FOOD, CONFECTIONERY, FLAVORS AND EXTRACTS, AND BEVERAGE PROCESSING
Provedor de dados: 31
Autores: Adelaja,   Adesoji O.; Nayga,   Rodolfo M., Jr.; Tank,   Karen Rose; Schilling,   Brian J.
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/18168

A SYMMETRIC APPROACH TO CANADIAN MEAT DEMAND ESTIMATION
Provedor de dados: 31
Autores: Eales,   James S.
Variability in published meat demand elasticity estimates for Canada motivates examining the importance of dynamics and endogeneity of right-hand-side variables. Wickens and Breusch suggest a re-parameterization of dynamics which allows estimating the long-run parameters directly and maintains linearity. A symmetric approach, employing both ordinary and inverse demand systems, to endogeneity of right-hand-side variables is used. Endogeneity of both prices and quantities is examined. Results show both dynamics and endogeneity are important in quarterly Canadian meat demand.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/31021

ANCHORED SCORING AND CONTINGENT VALUATION: ESTIMATING THE VALUE OF MULTIPURPOSE TREE RESOURCES IN ZIMBABWEAN COMMUNAL AREAS
Provedor de dados: 31
Autores: Lynam,   Timothy J.P.
That residents of Zimbabwe's Communal Areas (CAs) obtain a variety of goods and services from their natural woodlands has long been recognized. Little was known however, of the value or preferences of CA residents for these goods and services. This paper describes a study, carried out in mid-1991, to elicit the preferences of residents of CAs for the goods and services they derived from trees. A new approach to eliciting preferences and establishing monetary values for the non-market goods and services was developed and administered to a total of 369 households in three CAs. Scores given to tree-derived goods and services were indexed to an anchor (a borehole) for which a willingness to pay (WTP) estimate was elicited. A similar instrument, but without the...
Tipo: Thesis or Dissertation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/11244

A PROPOSED METHODOLOGY FOR ESTIMATING ECOREGIONAL VALUES FOR OUTDOOR RECREATION IN THE UNITED STATES
Provedor de dados: 31
Autores: Bhat,   Gajanan; Bergstrom,   John C.; Bowker,   James Michael; Cordell,   H. Ken.
This paper provides a methodology for the estimation of recreational demand functions and values using an ecoregional approach.  Ten ecoregions in the continental US were defined based on similarly functioning ecosystem characters. The individual travel cost method was employed to estimate the recreational demand functions for activities such as motorboating and waterskiing, developed and primative camping, coldwater fishing, sightseeing and pleasure driving, and big game hunting for each ecoregions.  Estimates of per trip net income value range from $12.93 to $218.38 while per day estimates range from $4.31 to $109.19.  While our ecoregional approach differs conceptually from previous work, our results appear consistent with the previous travel cost...
Tipo: Working or Discussion Paper
Palavras-chave: Recreation; Ecoregion; Travel cost method; Truncated poisson model; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/16686

FOOD PROCESSING ASSETS
Provedor de dados: 31
Autores: Gallo,   Anthony E.
U.S. food processing sector assets are valued at about $360 billion, or about 12 percent of all manufacturing assets. Profit and sales returns on assets in food processing are among the highest in the U.S. economy. Foreign holdings comprise a significant portion of food processors' assets.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/27783

SEAFOOD SAFETY PERCEPTIONS AND THEIR EFFECTS ON ANTICIPATED CONSUMPTION UNDER VARYING INFORMATION TREATMENTS
Provedor de dados: 31
Autores: Roheim,   Cathy A.; Kline,   Jeffrey D.; Anderson,   Joan Gray.
This paper identifies factors that influence consumers' seafood safety perceptions and examines how these perceptions affect consumers' anticipated consumption when consumers are provided with additional information relevant to seafood.  A recursive system of equations is specified describing consumers' safety perceptions as a function of past experience with seafood, recreational harvest activities, and risk-taking behavior, and describing the influence of safety perceptions on consumers' anticipated demand response to hypothetical information concerning seafood.  A telephone survey of randomly selected Rhode Island consumers provided data for the analysis.
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/31648

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover; Subjects of Previous Conferences; Foreword; Contents Pages; R. J. Hildreth Award for Career Achievement in Public Policy Education; Ira L. Ellis, Harold D. Guither, J. Paxton Marshall, L. Tim Wallace; Abstracts
Tipo: Conference Paper or Presentation
Ano: 1996
URL: http://purl.umn.edu/17280

Sustainability Issues and Socio-Economic Change in the Jingpo Communities of China: Governance, Culture and Land Rights
Provedor de dados: 31
Autores: Zhuge,   Ren; Tisdell,   Clement A.
Tipo: Working or Discussion Paper
Palavras-chave: China; Land-Use; Sustainable Development; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/53596

THE INFORMATION AGE UNIVERSITY?
Provedor de dados: 31
Autores: Reinschmiedt,   Lynn L.
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/15246

GRADES/CLASSES OF HARD WHEATS EXPORTED FROM NORTH AMERICA: ANALYSIS OF DEMAND AND TRENDS
Provedor de dados: 31
Autores: Dahl,   Bruce L.; Wilson,   William W.
Export patterns for U.S. and Canadian hard wheats (HAD, HRS, HRW, CWRS, and CWAD) were examined.  Analysis incorporated grade and non-grade factors from U.S. shipments and grades and classes of Canadian exports. Shift-share analysis was used to examine changes in market shares for classes and grades.  Cluster analysis was used to group importers of U.S. wheat classes based on like grade and non- grade factors of wheat shipments. Canada exports most of its hard wheat as No. 1, while the U.S. exports predominately No. 2 or better.  Classes experiencing increased market shares include HRS, CWRS, and CWAD.  U.S. HRS, HRW, and HAD all showed patterns of increasing market shares for No. 1 over lesser grades from the early 1980s to 1990s.   Importer comparisons...
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/23379

Integrating Decision Cases into the Design of Courses
Provedor de dados: 31
Autores: Peterson,   H. Christopher.
This paper examines strategies for integrating decision cases in the design of college courses. The benefits of decision cases are acknowledged but teaching strategies that rely solely on decision cases are challenged. A lack of real-world experience and knowledge among students can limit the effectiveness of teaching exclusively with decision cases in undergraduate or graduate classes. In such classes, decision cases need not be the sole teaching approach. Cases are much more often combined with lectures, problem sets and other teaching techniques. Suggested guidelines for incorporating cases into the design of courses are based on five critical topics: 1) course educational objectives, 2) the sequencing of case and other course material, 3) necessary...
Tipo: Journal Article
Palavras-chave: Decision cases; Course design; Mixed pedagogy; Case-content sequencing; Agribusiness; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/90396

The potential impact of changing grapefruit grading on growers' revenue
Provedor de dados: 31
Autores: Lee,   Jonq-Ying.
Tipo: Report
Palavras-chave: Agribusiness; Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/52815

MEASURED EFFECTS OF FEEDLOTS ON RESIDENTIAL PROPERTY VALUES IN MINNESOTA: A REPORT TO THE LEGISLATURE
Provedor de dados: 31
Autores: Taff,   Steven J.; Tiffany,   Douglas G.; Weisberg,   Sanford.
We were asked by the Legislature to conduct "research into the effects feedlots have on the value of nearby property."  To do so, we carried out a statistical examination of the interrelationships among residential property sales prices and nearby feedlots in a southwestern Minnesota study area.  Structure and location data for 292 residential property sales in Redwood and Renville Counties, excluding the cities of Olivia and Redwood Falls, were linked to the location and physical characteristics of every larger feedlot within three miles of each sale. The basic approach was to ask, "Does the addition of information about feedlot proximity help us explain observed house prices beyond the explanatory power of statistical models that use only the house's...
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/14121

THE 1996 FARM BILL: IMPLICATIONS FOR FAMILIES/CONSUMERS
Provedor de dados: 31
Autores: Moseley,   Roberta A.; Jackson,   Yvette; Schnittker,   John M.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/17287

INTEGRATION OF GEOGRAPHICAL INFORMATION SYSTEMS BASED SPATIAL ANALYSIS IN RECREATION DEMAND ANALYSIS
Provedor de dados: 31
Autores: Bhat,   Gajanan; Bergstrom,   John C.
This study has examined the use of an Object-Oriented GIS framework to generate and analyze spatial data in recreation demand analysis.  Several forms of GIS analysis are introduced and explained as how they can be utilized in recreational demand analysis.  An application of GIS to calculate journey distance and duration has been illustrated with a case study of camping activities in Cherokee National Forest, North Carolina.  The recreation demand models using these travel distance and duration are then compared with the models using respondent's stated values and models using distance data obtained from ZIPFIP software.  Based on the criteria such as   2 statistic, individual coefficient significance, it is found out that travel cost functions based on...
Tipo: Working or Discussion Paper
Palavras-chave: GIS; Spatial Analysis; Recreation Demand; Travel Cost method; Demand and Price Analysis; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/16649

Structure and Trends of Rural Employment: Canada in the Context of OECD Countries
Provedor de dados: 31
Autores: Cunningham,   Ron; Bollman,   Ray D.
In 1991, 33 percent of Canada's population lived in predominantly rural regions. Employment growth in rural regions averaged 1.3 percent per year over the 1980s, ranking fourth among OECD countries. In 1991, only 11 percent of the rural workforce in Canada were working in agriculture, forestry or fishing.  Within rural regions, employment growth was highest in rural areas adjacent to metropolitan centres. Business services was the fastest growing sector in all types of regions, but rural regions received only a minor boost due to the relatively low share of their workforce in business services. On average, rural areas showed less growth - however, within rural areas, there were regions that showed more growth than urban regions. Rurality does not...
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development; Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/28049

ESTIMATED COSTS OF SOLDIER AND COMBINE SUGARCANE HARVESTING SYSTEMS IN LOUISIANA
Provedor de dados: 31
Autores: Salassi,   Michael E.; Champagne,   Lonnie P.
Soldier (wholestalk) harvesting of sugarcane has been the predominant method of harvesting sugarcane in Louisiana for many years. With the short harvesting season and frequently wet harvesting conditions found in the state, this type of harvesting system has proven to be a very flexible and suitable system.  Combine (billet) harvesters have the ability to recover more of the sugarcane in the field, compared to soldier harvesters, particularly in fields with lodged sugarcane.  This report quantifies some of the differences in machinery requirements, performance rates, and estimated costs of operating soldier and combine sugarcane harvesting systems in Louisiana.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management.
Ano: 1996
URL: http://purl.umn.edu/31660

A Strategic Approach to Agricultural Research Program Planning in Sub-Saharan Africa
Provedor de dados: 31
Autores: Boughton,   Duncan; Crawford,   Eric W.; Howard,   Julie A.; Oehmke,   James F.; Shaffer,   James D.; Staatz,   John M.
Tipo: Working or Discussion Paper
Palavras-chave: Research and Development/Tech Change/Emerging Technologies; Downloads May 2008-July 2009: 13.
Ano: 1996
URL: http://purl.umn.edu/11450

A NOTE ON NONLINEARITY BIAS AND DICHOTOMOUS CHOICE CVM: IMPLICATIONS FOR AGGREGATE BENEFITS ESTIMATION
Provedor de dados: 31
Autores: Souter,   Ray A.; Bowker,   James Michael.
It is a generally known statistical fact that the mean of a nonlinear function of a set of random variables is not equivalent to the function evaluated at the means of the variables.  However, in dichotomous choice contingent valuation studies a common practice is to calculate an overall mean (or median) by integrating over offer space (numerically or analytically) an estimated logit or probit function in which sample mean values for the concomitant variables are used.  We demonstrate this procedure to be incorrect and we statically test the procedure against the correct method for nonlinear models.  Using data resulting in a well-behaved logit model, we reject the hypothesis of congruence between the two means.  Such a finding should be considered in...
Tipo: Journal Article
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/31649

Japan 1968: A Reflection Point During the Era of the Economic Miracle
Provedor de dados: 31
Autores: Hamada,   Koichi.
1968 was an epoch-making year in the Japanese economic history, or in the Japanese history in general. In this centennial year after the Meiji restoration, Japan's GNP became the second largest in the world surpassing West Germany. Japan was cruising on one of the most rapid growth trajectories, but it was anticipating the shade of future changes. Student movements flourished, being synchronized the world over, pollution in urban areas erupted and inflationary pressure began to surface. Japan's balance of current account turned into a pattern of chronic surplus, the pattern that led to the collapse of the Bretton Woods regime. In the socio-economic sense, 1968 was a reflection point of Japan's high growth period. This paper describes the economic forces...
Tipo: Working or Discussion Paper
Palavras-chave: Japan; High growth period; Student movements; Collapse of Bretton Woods; Pollution; Political Economy.
Ano: 1996
URL: http://purl.umn.edu/28487

ALTERNATIVES FOR SMALL FARM SURVIVAL: GOVERNMENT POLICIES VERSUS THE FREE MARKET
Provedor de dados: 31
Autores: Tweeten,   Luther G.; Amponsah,   William A.
This paper briefly outlines a topology of small farms and then considers the role of the government versus the market in key public policies such as commodity income support, environment, stability, research, and rural development. A number of options are explored for public policy to better serve small farms, including drastic alternatives such as graduated property taxes on farmland, with exemptions or lower rates for small farms. These and other alternatives are not necessarily recommended. Improved extension education and human resource development offer some of the most promising public policy opportunities to help small farmers.
Tipo: Journal Article
Palavras-chave: Government; Limited resource; Market; Programs; Research; Rural; Scale; Small farm; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/15249

FARM LABOR: KEY CONCEPTUAL AND MEASUREMENT ISSUES ON THE ROUTE TO BETTER FARM COST AND RETURN ESTIMATES
Provedor de dados: 31
Autores: Huffman,   Wallace E.
This paper examines methods frequently used by agricultural economists to measure the cost of farm labor, including operator and other unpaid, and to provide insights for improving them.  The tradition is broken of treating labor and management separately, and labor is defined as encompassing all the productive activities of individuals or human agents used in a business, including farming. Conceptual issues are first addressed: (1) the nature of economic cost and the cost of unpaid labor and (2) time allocation in agricultural household models where an individual's annual time endowment is allocated potentially to leisure, farm work, and off-farm work. Measurement issues are addressed second: (1) specific methods for improving the measurement of the cost...
Tipo: Working or Discussion Paper
Palavras-chave: Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/18254

DO HOUSEHOLDS FULLY SHARE RISK? EVIDENCE FROM GHANA
Provedor de dados: 31
Autores: Doss,   Cheryl R.
Intrahousehold analyses provide new insights into how households make economic decisions.  Much of the work in economics has traditionally treated the household as a single economic actor, but a number of studies are providing evidence that the dynamics among household members affect the outcomes of household economic decisions. This paper contributes to our understanding of such models by incorporating the variability of individual incomes into the analysis of intrahousehold resource allocations, using detailed household survey data from Ghana.
Tipo: Working or Discussion Paper
Palavras-chave: Consumer/Household Economics; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/13439

Minnesota Agricultural Economist 684
Provedor de dados: 31
Autores: Gartner,   William C.; Limback,   Linda; Adiarte,   Arthur.
Economic Impact of Tourism in Minnesota
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/13212

ESTIMATING A MIXED STRATEGY EMPLOYING MAXIMUM ENTROPY
Provedor de dados: 31
Autores: Golan,   Amos; Karp,   Larry S.; Perloff,   Jeffrey M.
Generalized maximum entropy may be used to estimate mixed strategies subject to restrictions from game theory.  This method avoids distributional assumptions and is consistent and efficient.  We use this method to estimate the mixed strategies of duopolistic airlines.
Tipo: Working or Discussion Paper
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/25072

MODELING ECOLOGICAL CONSTRAINTS ON TROPICAL  FOREST MANAGEMENT: COMMENT
Provedor de dados: 31
Autores: Barrett,   Christopher B.; Batabyal,   Amitrajeet A.
We comment on four aspects of Albers' [1] model of ecological constraints on tropical forest management. Albers structures her model in a highly asymmetric manner, with strong, uniform biases against development and in favor of preservation. Despite Albers' repeated claims that her model is "complete" and that it has significant implications for tropical forest management, we contend instead that the results of a truly general, empirically defensible model are inherently ambiguous. Spatial and intertemporal dimensions clearly matter, but they do not point as neatly in favor of preservation as Albers would have us believe.  Note:  Forthcoming in Journal of Environmental Economics and Management
Tipo: Working or Discussion Paper
Palavras-chave: Forest; Interdependence; Irreversibility; Management; Uncertainty; Resource /Energy Economics and Policy; D81; Q15; Q23.
Ano: 1996
URL: http://purl.umn.edu/28371

WORLD FEED BARLEY TRADE UNDER ALTERNATIVE TRADE POLICY SCENARIOS
Provedor de dados: 31
Autores: Mao,   Weining; Koo,   Won W.; Krause,   Mark A.
A spatial equilibrium model based on a quadratic programming algorithm was developed to analyze world feed barley trade and international competition among major exporters (Australia, Canada, the European Union, and the United States) under the current and alternative trade policy scenarios.  The U.S. Export Enhancement Program (EEP) plays an important role to maintain U.S. market share in importing countries.  Eliminating Canadian rail subsidy decreases Canadian offshore exports, but greatly increases its exports to the United States.  The North American Free Trade Agreement (NAFTA) increases feed barley trade within North America, but has little impact on world trade flows for feed barley.  Canada benefits most under the Uruguay Round Agreement of GATT...
Tipo: Working or Discussion Paper
Palavras-chave: Feed barley; International grain trade; Trade policy; Spatial equilibrium model; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/23272

IMPLEMENTING QUOTAS IN GTAP USING GEMPACK OR HOW TO LINEARIZE AN INEQUALITY
Provedor de dados: 31
Autores: Pearson,   Ken; Bach,   Christian Friis.
This document describes how explicit import and export quotas can be implemented and solved in the GTAP CGE trade model. The techniques described here apply equally well to other general and partial equilibrium models implemented and solved using the GEMPACK software. They also generalise to procedures for handling other inequalities in models solved via GEMPACK (even though GEMPACK does not allow explicit inequalities in the algebraic representation of models). In this document we review some recent applications of GTAP in which explicit import and export quotas have been modelled, and discuss how important it was for these applications to have explicit treatment of quotas.    Accompanying this document are various computer files containing the...
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/28720

The Second-Best Use of Social Cost Estimates
Provedor de dados: 31
Autores: Burtraw,   Dallas; Krupnick,   Alan J.
A significant literature has developed to estimate the damages to third parties from new electricity generation technologies. This paper focuses on how such estimates can be profitably used in the present regulatory environment, and in the potential new environment that may result from restructuring in the electricity industry.
Tipo: Working or Discussion Paper
Palavras-chave: Electricity; Environment; Social costs; Adders; Externalities; Demand and Price Analysis; H23; L94; L98.
Ano: 1996
URL: http://purl.umn.edu/10693

PROFITABILITY OF INCREMENTAL EXPENDITURE ON FIBRE PROMOTION
Provedor de dados: 31
Autores: Hill,   Debbie J.; Piggott,   Roley R.; Griffith,   Garry R.
In this paper the impact of changes in wool promotion expenditure and changes in expenditure on the promotion of competing fibres are examined using an equilibrium displacement model. The emphasis is on examining impacts on producer profits net of promotion expenditure and on benefit-cost ratios measuring changes in producer surplus relative to changes in promotion expenditure. It was found, for example, that incremental expenditure on apparel wool promotion on the domestic market is unprofitable but incremental expenditure on promotion of apparel wool on the export market is generally profitable. Further, it was found that increased promotion of cotton and man-made fibres on the export market, with promotion of apparel wool unchanged, would reduce profits...
Tipo: Journal Article
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/22370

RESPONDENTS TO CONTINGENT VALUATION SURVEYS: CONSUMERS OR CITIZENS (BLAMEY, COMMON AND QUIGGIN, AJAE 39:3) - A COMMENT
Provedor de dados: 31
Autores: Rolfe,   John; Bennett,   Jeffrey W.
Blarney, Common and Quiggin (1995) (BCQ) suggest that responses to contingent valuation (CV) questionnaires may be framed either according to the extent of individual benefits received, or according to wider views about ethical frameworks, impacts on other people, or desired societal levels. They characterise the individual benefit approach as a consumer model, and responses indicating wider concerns as citizen preferences. Citizen value responses are held to invalidate the economic assumptions underlying the use of CV. Hence, they hypothesize that the incorporation of CV results into benefit-cost analysis is problematic.  In this comment we suggest that there are several flaws with the citizen value hypothesis. These can be grouped into arguments about...
Tipo: Journal Article
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/22393

TRADE POLICY AND ENVIRONMENTAL QUALITY: THE CASE OF EXPORT SUBSIDIES
Provedor de dados: 31
Autores: Leetmaa,   Susan E.; Krissoff,   Barry; Hartmann,   Monika.
The United States and the European Union both employ export subsidies to stimulate wheat trade and to increase their competitiveness in world markets.  The environmental consequences of these policies are being questioned.  We simulate reducing or removing export subsidies for wheat from the United States and the EU using a multicountry partial equilibrium model, and we analyze the impact of export subsidy policy reform on nitrogen fertilizer and other chemical use.  Our findings indicate that the U.S. EEP program cannot be blamed for environmental degradation in terms of nitrate leaching, while EU wheat subsides make only a small contribution to nitrate pollution.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/31403

Farm-Retail Price Spreads in a Changing Economy
Provedor de dados: 31
Autores: Tomek,   William G.
Tipo: Working Paper
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/121196

THE MICROECONOMIC IMPACT OF IPM ADOPTION: THEORY AND APPLICATION
Provedor de dados: 31
Autores: Fernandez-Cornejo,   Jorge.
This paper develops a methodology to calculate the impact of integrated pest management (IPM) on pesticide use, yields, and farm profits.  The methodology is applied to the IPM adoption among fresh market tomato producers in eight states.  The method is of general applicability.  It accounts for self-selectivity and simultaneity, and the pesticide demand and yield equations are theoretically consistent with a profit function.  The results support the notion that fresh market tomato growers who adopt IPM for insects and diseases apply significantly less insecticides and fungicides, respectively, than do those who do not adopt IPM; IPM adoption has an insignificant effect on yields and a small effect on profits.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/31416

A Dynamic CGE Model: An Application of R&amp;D- Based Endogenous Growth Model Theory
Provedor de dados: 31
Autores: Diao,   Xinshen; Elbasha,   Elamin H.; Roe,   Terry L.; Yeldan,   A. Erinc.
An R&amp;D based endogenous growth - applied general equilibrium model is developed from an underlying analytical model which combines Romer's capital variety with Grossman and Helpman's multi-sector open economy model. The transitional dynamics of the analytical model are derived. For numerical implementation, a time discrete empirical model, with an Armington structure, is fit to East Asian data of the social accounting matrix variety. Simulations of trade reform are performed and their static and dynamic effects compared. The transition paths of the state variables are found to have a half-life of five to six periods. A solution of the Social Planner's problem, and interventions which seek to obtain this outcome from the decentralized model are also...
Tipo: Working or Discussion Paper
Palavras-chave: Applied General Equilibrium; Trade; Growth; International Relations/Trade; F11; 031; 041.
Ano: 1996
URL: http://purl.umn.edu/7461

MANURE VALUE AND LIVEWEIGHT SWINE DECISIONS
Provedor de dados: 31
Autores: Roka,   Fritz M.; Hoag,   Dana L.
Produced as a joint product, economic theory suggests that manure value could influence livestock management decisions such as herd size and optimal market weights. This study examines the concept of manure and its connection with optimal replacement age or market weight. A model of a swine finishing operation representative of North Carolina conditions is developed. Over the range of conditions considered, manure value is negative and does not affect market weights. The marginal per head change in manure value is small relative to the marginal per head change in net returns from pork production. Further, economies of scale with respect to irrigation cause manure value to increase with herd size.
Tipo: Journal Article
Palavras-chave: Manure value; Market weight; Response surface; Swine; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/15234

DISCUSSION: IMPACTS OF CONTEMPORARY POLICY CHANGES ON STRUCTURE, EFFICIENCY, AND TRADING RELATIONSHIPS
Provedor de dados: 31
Autores: Blakeslee,   Bill.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16970

Limited Cooperation in International Environmental Agreements
Provedor de dados: 31
Autores: Karp,   Larry S.; Sacheti,   Sandeep.
Governments' desire to ameliorate environmental problems may conflict with other goals. Policy levels which balance different objectives can be altered by policy changes in other countries. A decrease in the importance of the pollution problem, or an increase in its global extent, increase the likelihood that tighter environmental regulations in one region induce laxer policies elsewhere. The transboundary character and the importance of environmental externalities also affect the amount of cooperation needed to improve members' welfare in a coalition. More global pollution problems require a larger coalition. However, the critical coalition size may be larger or smaller for more severe problems.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental policy; Limited cooperation; International environmental agreements; Strategic complements and substitution; Environmental Economics and Policy; International Relations/Trade; F02; F13; H21; L13; Q28.
Ano: 1996
URL: http://purl.umn.edu/6286

The Effect of Increased Trade on the U.S. Fruit Sector
Provedor de dados: 31
Autores: Figueroa,   Enrique E.
Tipo: Working Paper
Palavras-chave: Environmental Economics and Policy; Marketing.
Ano: 1996
URL: http://purl.umn.edu/121178

Economic Impacts of Cooperatives in North Dakota, 1996
Provedor de dados: 31
Autores: Bhuyan,   Sanjib; Leistritz,   F. Larry.
Tipo: Technical Report
Palavras-chave: Public Economics.
Ano: 1996
URL: http://purl.umn.edu/121043

COMMUNITY SUPPORTED AGRICULTURE: FILLING A NICHE MARKET
Provedor de dados: 31
Autores: Farnsworth,   Richard L.; Thompson,   Sarahelen R.; Drury,   Kathleen A.; Warner,   Richard E.
In less than a decade, the number of Community Supported Agriculture (CSA) projects has grown to more than 400. Our research suggests that CSA shareholders' social objectives dominate their decision to join. Standard economic objectives and "club-related" objectives contribute to the decision, but are clearly secondary. Our research also suggests the CSA movement will continue to grow. Its emphasis on social objectives, its inability to supply food year around, and the ongoing development of size-neutral organic technologies, however, will probably keep it from becoming a major market channel in the next century.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/27792

AGRICULTURAL POLICY REFORM IN THE UNITED STATES: NOTES ON THE 1995-96 FARM BILL; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Anthony,   Willis Eugene; Runge,   C. Ford.
The new Farm Bill, the Federal Agricultural Improvement Act (FAIR) of 1996, contains numerous new provisions which mark important breaks with the past.  In this brief summary, we will focus on three areas of potential interest to an international audience, first briefly detailing the changes, then offering a view from one author's perspective as a practicing farmer in South-Central Minnesota.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/14412

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover, Title Page, Foreword, Workshop Authors and Organizers, Contents Pages
Tipo: Conference Paper or Presentation
Ano: 1996
URL: http://purl.umn.edu/16957

QUICKEN AS A FARM ACCOUNTING SYSTEM:  A LESSON PLAN ON CASH BASIS RECORDKEEPING  WITH ACCRUAL-ADJUSTED FINANCIAL STATEMENTS
Provedor de dados: 31
Autores: Bond,   Larry K.
The purpose of this document is to demonstrate how Quicken, a popular checkbook management software program, can be used to keep a set of records for the farm business that will measure profits, liquidity, and solvency. This is a revision of ERI 95-02, with more detailed explanations. All graphics have been eliminated and fonts have been changed so this document can be printed on most printers. It is based on an example farm used in the Business Management in Agriculture (BMA) series of videos and workbooks developed in the late 1980s, and draws on materials prepared by Dr. Ken Stokes of Texas A&amp;M University.  It will best be understood if used as a study guide, and that entries actually be made in Quicken as they are encountered in the guide, and...
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural Finance.
Ano: 1996
URL: http://purl.umn.edu/28358

THE IMPORTANCE OF THE MARKET AREA DETERMINATION FOR ESTIMATING AGGREGATE BENEFITS OF PUBLIC GOODS: TESTING DIFFERENCES IN RESIDENT AND NONRESIDENT WILLINGNESS TO PAY
Provedor de dados: 31
Autores: Loomis,   John B.; Gonzalez-Caban,   Armando.
A combined telephone contact-mail booklet-telephone interview of California and New England households regarding their willingness to pay for fire management in California and Oregon's old-growth forests was performed to test hypotheses regarding the spatial extent of the public goods market.  Using a multiple-bounded contingent valuation question, the study found that New England households' annual willingness to pay for the California and Oregon programs was statistically different from zero.  This analysis points out that households receive benefits from fire protection of old-growth forests in states other than their own.  In this case study, limiting the survey sample to state residents where the National Forest is located would reflect about 20%  of...
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/31404

LAND AND FOOD SUPPLY PROBLEMS IN BANGLADESH
Provedor de dados: 31
Autores: Aziz,   Fahima.
This paper will study the problems of food supply and analyze the reasons for the slow growth in the production of foodgrains [in Bangladesh].  The foodgrain distribution system will also be addressed and its role in the food shortage problem of Bangladesh.  Past evidence shows that landlordism has obstructed the incentives of the peasants and has depressed the maximum productivity of owner-operated farms.  This paper will briefly discuss the history of land reform and the measures undertaken to bring about tenancy reforms in Bangladesh.
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/13674

A COMPOSITE SYSTEM DEMAND ANALYSIS FOR FRESH FRUITS AND VEGETABLES IN THE UNITED STATES
Provedor de dados: 31
Autores: You,   Zhikang; Epperson,   James E.; Huang,   Chung L.
Price and expenditure elasticities at retail level for 11 fresh fruits and 10 fresh vegetables were estimated by employing a composite demand system approach and using annual data. Most fresh fruits and vegetables were found to respond significantly to changes in their own prices but insignificantly to changes in total expenditures. The demand for fresh fruit group appeared to have had a clear upward trend since 1973. However, no significant trends were found in the demands for individual fresh fruits or vegetables. The study partially incorporated the interdependent demand relationships between fresh fruits (vegetables) and all other commodities, yet effectively avoided the problem of insufficient degrees of freedom.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/27894

THE ENVIRONMENTAL IMPLICATIONS OF AGRICULTURE
Provedor de dados: 31
Autores: Bromley,   Daniel W.
There are three general classes of environmental implications from agriculture: (1) amenity implications; (2) habitat implications; and (3) ecological implications.  Environmental "benefits" or "costs" from agriculture require a prior specification of the norm against which the status quo is to be compared. Agriculture is no longer simply an activity that produces commodities for local, regional, national, or international markets.  Indeed, in the OECD countries, commodity abundance, not commodity scarcity, is the norm and so it is necessary to see agriculture as primarily a land management activity that provides (and supports) rural livelihoods, and that happens also to produce some marketable commodities.  This fundamental redefinition of agriculture...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/12591

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover; Editorial Information; Contents Pages
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/15119

Une approche stratégique pour la planification du programme de recherche agricole en Afrique sub-saharienne
Provedor de dados: 31
Autores: Boughton,   Duncan; Crawford,   Eric W.; Howard,   Julie A.; Oehmke,   James F.; Shaffer,   James D.; Staatz,   John M.
Tipo: Working or Discussion Paper
Palavras-chave: Research and Development/Tech Change/Emerging Technologies; Downloads July 2008-June 2009: 6.
Ano: 1996
URL: http://purl.umn.edu/11384

AN EVALUATION OF SELECTED DECISION MODELS: A CASE OF CROP CHOICE IN NORTHERN THAILAND
Provedor de dados: 31
Autores: Vieth,   Gary R.; Suppapanya,   Pramote.
This research examines the predictability of a profit maximization model, an expected value-variance utility maximization (E-V) model, and two versions of the target-MOTAD model for modeling risky agricultural production decisions. Model solutions were translated into expected value and variance of farm income for analysis. Direct comparison and chi-square analysis of actual and predicted expected income distributions were used in the analyses. It was concluded that the utility maximization and cash-cost target-MOTAD models predicted distributions of farm income better than the variable-cost target-MOTAD and profit maximization models.
Tipo: Journal Article
Palavras-chave: Decision models; Expected utility maximization; Farm income; Profit maximization; Target-MOTAD; Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/15128

ANALYZING THE POTENTIAL FOR INCREASED TRADE IN DAIRY PRODUCTS: A CANADIAN PERSPECTIVE
Provedor de dados: 31
Autores: Meilke,   Karl D.; Sarker,   Rakhal; Le Roy,   Danny G.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16959

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover; Editorial Information; Contents Page
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/30993

Land Use, Soil Loss and Sustainable Agriculture in Rwanda
Provedor de dados: 31
Autores: Clay,   Daniel C.; Lewis,   Laurence A.
This paper demonstrates that there is relatively little association between field  slope and crop cover in Rwanda, and examines the question of how this could be so in this  highland African nation.
Tipo: Report
Palavras-chave: Food security; Food policy; Rwanda; Soil erosion; Cropping patterns; Slope; Sustainable  agriculture; Land Economics/Use; Q18.
Ano: 1996
URL: http://purl.umn.edu/55057

Pluralism and Regulatory Failure: When Should Takings Trigger Compensation?
Provedor de dados: 31
Autores: Boyd,   James; Brennan,   Timothy J.
The paper evaluates the desirability of compensation for regulatory takings. To do so, we describe a public choice model in which regulators' decisions are influenced by competing political interests. We consider how the political incentives of landowners, environmentalists, and taxpayers are affected by alternative compensation rules and in turn describe the regulatory decisions made in such a pluralistic political environment. Modeling the regulator's incentives in this way leads to the conclusion that compensation should not be paid unless environmentalists and property owners have unequal influence politically. Moreover, the model has several counter-intuitive implications when political influence is not balanced. For instance, if environmentalists are...
Tipo: Working or Discussion Paper
Palavras-chave: Regulatory takings; Compensation; Political economy; Environmental Economics and Policy; K11; D72; L51.
Ano: 1996
URL: http://purl.umn.edu/10702

FOG: A WATER RESOURCE FOR THE DEVELOPMENT OF ARID REGIONS; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Semenzato,   Roberto.
The Pacific coastline from Peru to Northern Chile is one of the most arid regions in the world, with little rainfall, but considerable amounts of fog produced by the advection of marine clouds towards the continent.  This paper describes a project, recently funded by the European Commission, whose objective is to set up a basic plan of sustainable use for the natural resources of the Peruvian coastal desert using collected fog as the only water resource.  This plan will be based on the results of a pilot experiment, which is being carried out on the coastal hills of Southern Peru, aimed at verifying the following assumptions: the effectiveness of artificially collected fog water in the restoration of the vegetation in an environment which is undergoing a...
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/14357

Free-riders or victims:  Women's nonparticipation in irrigation management in Nepal's Chhattis Mauja Irrigation Scheme.
Provedor de dados: 31
Autores: Zwarteveen,   Margreet Z.; Neupane,   Nita.
Examines multiple factors in women's involvement/non-involvement in irrigation in the Chhattis Mauja irrigation scheme in Nepal. Includes an empirical analysis of the livelihood strategies of farm households, documentation of the level and nature of participation of women and men in the water users' organizations, analysis of women's access to irrigation services, and an examination of the need and desirability of increasing the participation of woman in the scheme organization.
Tipo: Report
Palavras-chave: Irrigation management; Farmer-managed irrigation systems; Irrigation programs; Privatization; Water users' associations; Irrigated farming; Irrigation canals; Water delivery; Water allocation; Water distribution; Maintenance; Gender; Women in development; Farmers; Female labor; Agricultural manpower; Households; Family labor; Living standards; Social aspects; Agricultural production; Villages; Social organization; Performance evaluation; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Farm Management; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Production Economics.
Ano: 1996
URL: http://purl.umn.edu/52731

PERIURBAN AGRICULTURE IN METROPOLITAN AREAS: THE BOLOGNA CASE STUDY; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Bazzani,   Guido Maria; Bradascio,   Margherita.
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/14381

Ruminant Nutrition and Production in the Tropics and Subtropics
Provedor de dados: 31
Autores: Bakrie,   B.; Hogan,   J.; Liang,   J.B.; Tareque,   A.M.M.; Upadhyay,   R.C.
Tipo: Report
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/117194

DISCUSSION: IMPACTS OF PAST U.S./CANADIAN DAIRY PROGRAMS ON STRUCTURE, EFFICIENCY, AND TRADING RELATIONSHIPS
Provedor de dados: 31
Autores: Nicholson,   Donald R.
Tipo: Conference Paper or Presentation
Palavras-chave: Agribusiness; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16946

A New Approach to Non-CMA/CA Areas
Provedor de dados: 31
Autores: Howatson-Leo,   Linda; Earl,   Louise; Puderer,   Henry; Cunningham,   Ron; Bollman,   Ray D.; Rea,   Willa.
Non-metropolitan areas in Canada are often simply referred as rural Canada, without enough attention paid to their inner differences. The Metropolitan Influence Zones (MIZ) conceptual framework allows us to divide non-metropolitan areas into No Metropolitan Influence Zone (No MIZ), Weak Metropolitan Influence Zone (Weak MIZ), and Moderate Metropolitan Influence Zone (Moderate MIZ), according to the commuting flows to and from metropolitan areas. Analyses on New Brunswick show that the nonmetropolitan population are economically disadvantaged overall compared to metropolitan population. However, there are substantial differences within nonmetropolitan areas. Population in the No Metropolitan Influence Zone do not appear to be the most disadvantaged...
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/28032

BUSINESS SUMMARY NEW YORK STATE 1995
Provedor de dados: 31
Autores: Smith,   Stuart F.; Knoblauch,   Wayne A.; Putnam,   Linda D.
Business and financial records from 321 New York dairy farm businesses are summarized and analyzed. This analysis demonstrates the use of cash accounting and accrual adjustments to measure farm profitability, cash now, financial performance, and costs of producing milk. Traditional methods of analyzing dairy farm businesses are combined with improved evaluation techniques to show the relationship between good management performance and financial success. The farm in the project averaged 160 cows per farm and 20,269 pounds of milk sold per cow in 1995, which are above the average size and management level of all New York dairy farms. Net farm income excluding appreciation, which is the return to the operator's labor, management, capital, and other unpaid...
Tipo: Technical Report
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/122831

UNCOMMON OPPORTUNITIES FOR ACHIEVING SUSTAINABLE FOOD AND NUTRITION SECURITY: AN AGENDA FOR SCIENCE AND PUBLIC POLICY
Provedor de dados: 31
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy; Food Security and Poverty; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/16364

A REVIEW OF ALTERNATIVE EXPECTATIONS REGIMES IN COMMODITY MARKETS: SPECIFICATION, ESTIMATION, AND HYPOTHESIS TESTING USING STRUCTURAL MODELS
Provedor de dados: 31
Autores: Burton,   Diana M.; Love,   H. Alan.
Price expectations play a critical role in commodity markets where producers must make input decisions well before output is realized.  This paper brings together alternative expectations regimes, their estimation, and hypothesis tests for use in structural commodity models to determine their use by commodity producers.  Extrapolative mechanisms and rational expectations are considered under risk neutrality and risk aversion.  The assumptions implicit in the use of aggregate data in these models are made explicit.  Structural models using individual survey data are discussed.  While Muth's rational expectations hypothesis has found widespread acceptance in the macroeconomic literature, empirical results from industry studies indicate that commodity...
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/31417

Mandated Marketing Programs For California Commodities
Provedor de dados: 31
Autores: Lee,   Hyunok; Alston,   Julian M.; Carman,   Hoy F.; Sutton,   William R.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy; Marketing.
Ano: 1996
URL: http://purl.umn.edu/11919

Economic Impacts in North Carolina of a Peanut Support Price and Quota Reduction
Provedor de dados: 31
Autores: Martin,   Laura L.; Brown,   A. Blake.
Excessive government losses and pressure from end users of peanuts have increased the likelihood of a peanut support price and quota reduction in the 1995 farm bill. This study analyzes the economic impacts of reducing the national quota support price on North Carolina farm income and rural communities. Effects of policies that reduce quota support price for Virginia-type peanuts from $675 per ton to levels of $600 and $500 per ton are estimated. Reductions in the quota support price have significant impacts on quota owners and peanut producing regions. A 10 percent reduction in quota and a $500 support price would result in a $43 million income reduction to North Carolina.
Tipo: Journal Article
Palavras-chave: Peanut production; Peanut policy; Farm income; Agribusiness; Agricultural Finance; Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/90380

Cash Crop and Foodgrain Productivity in Senegal: Historical View, New Survey Evidence, and Policy Implications
Provedor de dados: 31
Autores: Kelley,   Valerie A.; Diagana,   Bocar N.; Reardon,   Thomas; Gaye,   Matar; Crawford,   Eric W.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Productivity Analysis; Downloads July 2008 - June 2009: 10.
Ano: 1996
URL: http://purl.umn.edu/11459

Stranded Costs, Takings, and the Law and Economics of Implicit Contracts
Provedor de dados: 31
Autores: Brennan,   Timothy J.; Boyd,   James.
This paper explores ways in which economic analysis can help resolve the stranded cost controversy that has arisen in debates over electricity market deregulation. "Stranded costs" are costs electric utilities will not recover as power markets move from protected monopolies to an open, competitive environment. The paper begins with a description of the stranded cost problem, its magnitude, and the prominent arguments for and against recovery. We then turn to an analysis of contracts in order to understand whether there is, or should be, a legal duty to compensate utility shareholders for unrecovered costs. The paper also argues that efficient approaches to electricity deregulation will rely on more than an analysis of contracts. In particular, the politics...
Tipo: Working or Discussion Paper
Palavras-chave: Stranded costs; Deregulation; Takings; Electric utilities; Contracts; Resource /Energy Economics and Policy; L43; L94; K12.
Ano: 1996
URL: http://purl.umn.edu/10688

Reducing Investment Risk in Tractors and Combines with Improved Terminal Asset Value Forecasts
Provedor de dados: 31
Autores: Unterschultz,   James R.; Mumey,   Glen.
Secondary asset market data for combines and tractors are used to estimate and separate out historical economic depreciation, embodied technological change and time value change. Combines and tractors generally exhibit constant geometric economic depreciation on a year to year basis. Depreciation rates vary by manufacturer. Farm investors can use these manufacturer specific depreciation rates reported here to estimate terminal asset values. The study found significant seasonal differences in machinery depreciation rates. A major source of error in forecasting terminal asset values comes from changes related to time. There is a predictable time component to the constant quality asset index that has not been investigated in previous studies. Unanticipated...
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management.
Ano: 1996
URL: http://purl.umn.edu/24119

END MATERIALS
Provedor de dados: 31
Includes: List of Participants, Back Cover
Tipo: Conference Paper or Presentation
Ano: 1996
URL: http://purl.umn.edu/16949

Property Rights, Sustainability and Public Choice
Provedor de dados: 31
Autores: Johnson,   R.W.M.
Sustainability implies a non-degrading use of natural resources in the long term. Property systems, on the other hand, institutionalise existing resource use practices in a fixed timeframe. Where outcomes such as third party effects have not been anticipated, property systems need to be modified or attenuated. The use of pastoral lease land in New Zealand exhibits these features and some attenuation is therefore desirable in new legislation. This paper reports a personal attempt to achieve these ends through bureaucratic reform and personal representation.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/12366

FINANCIAL CHARACTERISTICS OF NORTH DAKOTA FARMS, 1993-1995
Provedor de dados: 31
Autores: Swenson,   Andrew L.; Gustafson,   Cole R.
The performance of over 500 North Dakota farms, 1993-1995, is summarized using 16 financial measures.  Farms are categorized by geographic region, farm type, farm size, gross cash sales, farm tenure, net farm income, debt-to-asset, and age of farmer to analyze relationships between financial performance and farm characteristics.
Tipo: Working or Discussion Paper
Palavras-chave: Farm financial management; Farm management; Farm income; Liquidity; Solvency; Profitability; Repayment capacity; Financial efficiency; Financial benchmarks; Tenure; North Dakota.; Agricultural Finance.
Ano: 1996
URL: http://purl.umn.edu/23187

Cost of managing with less: cutting water subsidies and supplies in Egypt's agriculture
Provedor de dados: 31
Autores: Lofgren,   Hans.
"Abbreviated title: Cost of managing with less." "April 3, 1996." "July 1995, revised April 1996"--Half title page. Includes bibliographical references (leaves 31-32).
Tipo: Working or Discussion Paper
Palavras-chave: Water -- Prices; Water rights; Water-supply; Agricultural -- Egypt; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/97766

The Demand for Food Safety: An Empirical Analysis of Preferences for Pesticide and Hormone Regulation by Alberta Consumers
Provedor de dados: 31
Autores: Kuperis,   Peter; Adamowicz,   Wiktor L.; Veeman,   Michele M.; Hrudey,   Steve.
Tipo: Working or Discussion Paper
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/24100

Thresholds for Carcinogens: A Review of the Relevant Science and Its Implications for Regulatory Policy
Provedor de dados: 31
Autores: Wilson,   James D.
Regulation of carcinogens in the United States has been based on a "no threshold" policy. This makes the assumption there exists no level of exposure for which the possibility of causing harm is truly zero. The alternative "threshold" policy assumes that there exists some level of exposure at which no harm will come to anyone in a population so exposed. The no-threshold policy made sense when adopted, thirty or more years ago, since the science then available was not able to distinguish between these two opposing hypotheses, and "no threshold" provides more margin of safety. Since then, our understanding of biological processes related to birth and growth of cancer has greatly expanded. We now understand that two different biological processes can enlarge...
Tipo: Working or Discussion Paper
Palavras-chave: Regulation; Cancer; Science policy; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/10470

ECONOMIC ANALYSIS OF HERBICIDE CONTROL OF LEAFY SPURGE (EUPHORBIA ESULA L.) IN RANGELAND
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leitch,   Jay A.; Leistritz,   F. Larry.
Leafy spurge (Euphorbia esula L.), a widely established exotic, noxious, perennial weed, is a major threat to the viability of commercial grazing and beneficial outputs of wildlands in the Upper Great Plains.  Herbicide treatments are often recommended based upon measures of physical control rather than on economic criteria.  Considering the wide geographic variation of leafy spurge infestations, the range of herbicide control alternatives, and the long-term consequences this weed creates, a need exists to assess the economics of herbicide control.  A deterministic, bioeconomic model was developed to evaluate the economic viability of current herbicide control strategies for leafy spurge.  Only under liberal assumptions and optimistic projections does...
Tipo: Working or Discussion Paper
Palavras-chave: Leafy spurge; Herbicides; Control; Economics; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/23314

BOILED CRAWFISH CONSUMPTION IN LOUISIANA
Provedor de dados: 31
Autores: Dellenbarger,   Lynn E.; August,   Paula; Schupp,   Alvin R.
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/27775

The Food Marketing System in 1995
Provedor de dados: 31
Autores: Gallo,   Anthony E.
The number of new food processing plants rose sharply in 1995. Profitability from food manufacturing and retailing operations (excluding interest expense) continued to increase, reflecting strong sales, wage and producer price stability, and streamlining of operations. The number of mergers and leveraged buyouts fell. New product introductions, consumer advertising expenditures, common stock prices and the positive U.S. balance of trade in processed food reached new highs. This report analyzes and assesses yearly developments in growth, conduct, performance, and structure of the institutions--food processors, wholesalers, retailers, and foodservice firms--that comprise the Nation's food marketing system. Industry growth includes changes in sales for each...
Tipo: Report
Palavras-chave: Food marketing; Food processors; Wholesalers; Retailers; Foodservice; Advertising; Profitability; Trade; Marketing.
Ano: 1996
URL: http://purl.umn.edu/33679

Integrated Regional Environmental Studies: The Role of Environmental Economics
Provedor de dados: 31
Autores: Tisdell,   Clement A.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/53598

WATER INSTITUTIONS AND ECONOMIC INCENTIVES TO AMELIORATE MARKET AND GOVERNMENT FAILURES
Provedor de dados: 31
Autores: Easter,   K. William; Feder,   Gershon.
At the macro level, the way water resources are managed results in major misallocations as well as quality deterioration.  It has become apparent in many cases that current practices and policies are not sustainable, and that reforms are needed.  The present paper focuses on some of these reforms.  It starts by reviewing and analyzing the sources of the market failures as well as government failures in water resources management.  Recognizing the inevitability and desirability of some form of public action in many circumstances, it seeks to identify forms of interventions that utilize, to the extent possible, individual or private incentives by providing the institutional and legal framework in which these incentives can best complement the interventions....
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/14217

Model Choice and Structural Specification for Canadian Meat Consumption
Provedor de dados: 31
Autores: Xu,   Xiaosong; Veeman,   Michele M.
Tipo: Working or Discussion Paper
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/24068

NAREA DISTINGUISHED AND HONORARY LIFE MEMBERS
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/31410

SOCIAL CAPITAL AND RISK RESPONSES
Provedor de dados: 31
Autores: Robison,   Lindon J.; Hanson,   Steven D.
The economic well-being of economic agents is assumed to be interpersonally dependent.  The extent of this interpersonal dependency varies according to the strength of relationships, values, and social bonds and is measured using social capital coefficients in a neoclassical model in which agents with stable preferences maximize utility.  The model's predictions are tested empirically by asking agents how their willingness to bear a risk is altered when their refusal to accept the risk increases the risk faced by others.
Tipo: Working or Discussion Paper
Palavras-chave: Institutional and Behavioral Economics; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/11504

World Wheat Policy Simulation Model: Preliminary Baseline
Provedor de dados: 31
Autores: Benirschka,   Martin; Koo,   Won W.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy; Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/23184

DEMAND FOR PLANTS SOLD IN NORTH CAROLINA GARDEN CENTERS
Provedor de dados: 31
Autores: Abdelmagid,   Banaga D.; Wohlgenant,   Michael K.; Safley,   Charles D.
Demand for selected nursery plants sold in North Carolina (i.e., begonia, dianthus, geranium, impatiens, marigold, petunia, and vinca) was found to be affected more by prices than by income, demographic, and other variables.  By using cross-sectional data, a modified AIDS model, incorporating demographic variables and quadratic income response, was estimated.  Inverse Mills's ratios were also included in the model to correct for selectivity bias, resulting from zero purchases.  Significant own-price elasticities ranged from -0.71 to -1.65, and income elasticities ranged from -0.78 to 0.41.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/31651

AN ANALYSIS OF IODINE DEFICIENCY DISORDER AND ERADICATION STRATEGIES IN THE HIGH ATLAS MOUNTAINS OF MOROCCO
Provedor de dados: 31
Autores: Oldham,   Elizabeth Anne; Barrett,   Christopher B.; Benjelloun,   Sabah; Ahanou,   Brahim.
The population of the Ounein Valley in the High Atlas Mountains in Morocco is at high risk of iodine deficiency. We investigated local children’s iodine deficiency and goiter patterns as well as food consumption habits through a household survey. Median urinary iodine content and goiter analysis both reflect moderate iodine deficiency. Total fish consumption has a statistically significant, positive effect on urinary iodine content. Fish consumption, like that of salt, is closely related to market access. Respondents are uniformly unaware of the dietary etiology of goiter. An effective strategy to reduce the high incidence of iodine deficiency disorder among children in the valley must attend to four crucial issues: fish consumption, salt iodization,...
Tipo: Working or Discussion Paper
Palavras-chave: Iodine deficiency; Micronutrient deficiency; Morocco; Nutrition education; Salt iodization; Food Consumption/Nutrition/Food Safety; Health Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/28368

A Review of Economic Appraisal of Environmental Goods and Services: With a Focus on Developing Countries
Provedor de dados: 31
Autores: Hearne,   Robert R.
Environmental economics has an extensive literature on procedures for placing economic values on the environment. Most of these methodologies have been developed and refined in the context of developed countries, where high levels of disposable income allow for a high demand for environmental amenities and a willingness to pay for non-use values. This paper argues that the applicability of these methodologies may be limited in developing countries. A microeconomic model, designed to highlight the different roles of environmental goods and services in developed and developing counties, is presented. In developing countries the value of environmental amenities is relatively less important than the value of environmental resources in the production process....
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; International Development.
Ano: 1996
URL: http://purl.umn.edu/24144

REGIONAL DRAINWATER MANAGEMENT: SOURCE CONTROL, AGROFORESTRY, AND EVAPORATION PONDS
Provedor de dados: 31
Autores: Posnikoff,   Judith F.; Knapp,   Keith C.
Source control is one way to address salinity and drainage problems in irrigated agriculture, and reuse of drainage flows on salt-tolerant crops or trees in agroforestry production is another. A regional model of agricultural production with drainwater reuse and disposal is developed. Deep percolation flows are controlled through choice of crop areas, irrigation systems, and applied-water quantities. Crop drainwater may by reused in agroforestry production, and residual emissions are disposed of in an evaporation pond. A significant role for both source control and reuse is found. Sensitivity to various cost and revenue parameters is also analyzed.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/31020

FOOD MARKETING IN AN ELECTRONIC AGE: IMPLICATIONS FOR AGRICULTURAL PRODUCERS
Provedor de dados: 31
Autores: Kinsey,   Jean D.; Senauer,   Benjamin.
The most efficient food delivery system in the world is becoming even more so with new electronic information gathered at the checkout counter and quickly transmitted to food distributors and manufacturers.  In order to meet new competition in the retail  market for food and food services, traditional grocery stores and their suppliers are redesigning how they present, order and distribute products.  This effort is called Efficient Consumer Response (ECR).  It is a system whereby consumer preferences, expressed through their purchases, are revealed to food manufacturers and then back to producers.  Commodities with special characteristics for preferred types of food are pulled out of the food and agricultural system as opposed to being pushed out in bulk...
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; Marketing.
Ano: 1996
URL: http://purl.umn.edu/14303

Intrahousehold Allocations: A Review of Theories, Empirical Evidence and Policy Issues
Provedor de dados: 31
Autores: Strauss,   John; Beegle,   Kathleen.
Review of the collective household model, which encompasses some game-theoretic approaches as well. Discusses empirical evidence on a variety of issues related to human resource outcomes and investments, using both the household production model and the collective model.
Tipo: Report
Palavras-chave: Security; Food policy; Intrahousehold allocation; Labor and Human Capital; Downloads July 2008-July 2009: 25; D13.
Ano: 1996
URL: http://purl.umn.edu/54688

Investments in Biodiversity Prospecting and Incentives for Conservation
Provedor de dados: 31
Autores: Sedjo,   Roger A.; Simpson,   R. David.
There is considerable interest in biodiversity prospecting (the search for valuable new products from natural sources) as a conservation strategy. In an earlier paper, we have argued that the value of the marginal species (and, by extension, the incentives for the conservation of the habitat on which it is found) is small. In this paper, we show that investments in biodiversity prospecting are unlikely to increase incentives for conservation by much. If the value of the marginal species were appreciable, researchers ought already to have made investments to exploit it. If it is not, it is doubtful that additional investments will generate any substantial increase. It is important to be clear about our findings: we are not saying that none of the myriad...
Tipo: Working or Discussion Paper
Palavras-chave: Biodiversity; Biodiversity prospecting; Investment; Conservation policy; Environmental Economics and Policy; O13; Q29.
Ano: 1996
URL: http://purl.umn.edu/10821

Working with Mycorrhizas in Forestry and Agriculture
Provedor de dados: 31
Autores: Brundrett,   Mark; Bougher,   Neale; Dell,   Bernie; Grove,   Tim; Malajczuk,   Nick.
Tipo: Technical Report
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/119356

DISCUSSION: ANALYSING THE POTENTIAL FOR INCREASED TRADE
Provedor de dados: 31
Autores: Weersink,   Alfons.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16968

SUMMARY OF CONDITIONAL LAND TRANSFER AGREEMENTS
Provedor de dados: 31
Autores: Harvey,   Lynn R.
Brief history of P.A. 425 of 1984, discussion of contract provisions, tabular summaries of agreements filed since 1985 and analysis of emerging issues.
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/11743

Promoting Food Security in Rwanda through Sustainable Agricultural Productivity: Meeting the Challenges of Population Pressure, Land Degradation, and Poverty
Provedor de dados: 31
Autores: Clay,   Daniel C.; Byiringiro,   Fidele Usabuwera; Kangasniemi,   Jaakko; Reardon,   Thomas; Sibomana,   Bosco; Uwamariya,   Laurence; Tardif-Douglin,   David.
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty; Downloads July 2008-July 2009: 15.
Ano: 1996
URL: http://purl.umn.edu/11425

Relato de Sucesso da Seguranca Alimentar em Mocambique
Provedor de dados: 31
Autores: Tschirley,   David L.; Weber,   Michael T.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Downloads July 2008-June 2009: 32.
Ano: 1996
URL: http://purl.umn.edu/11431

Front Materials
Provedor de dados: 31
Includes: Front Cover, Preface, Table of Contents, List of Contributors, Forward by Terry L. Roe
Tipo: Conference Paper or Presentation
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/50861

Environmental Priorities for the District of Columbia: A Report to the Summit Fund
Provedor de dados: 31
Autores: Davies,   Terry; Darnall,   Nicole.
This paper examines and ranks the District of Columbia's environmental problems. Four criteria are used to determine each problem's severity: public opinion of the problem, health effects, the number of people affected, and ecological and welfare effects. Public opinion is measured via 345 city resident and 23 stakeholder interviews. Stakeholders included environmental experts familiar with issues in the District. Health and ecological effects are captured by analyzing both the EPA's and District of Columbia's environmental data. The results show that the top four problems facing the city, in order of importance, are: drinking water, air pollution, the Anacostia River, and lead poisoning. Several recommendations for resolving the District's problems are...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/10891

AN ANALYSIS OF THE IMPACT OF A BAN OF METHYL BROMIDE ON THE U.S. WINTER FRESH VEGETABLE MARKET
Provedor de dados: 31
Autores: Deepak,   M.S.; Spreen,   Thomas H.; VanSickle,   John J.
This study evaluates the economic impact of a ban on methyl bromide on the U.S. winter fresh vegetable market for six major crops: tomatoes, green peppers, cucumbers, squash, eggplant, and watermelons. Florida is the primary domestic supplier of these products. Mexico and Texas are the competing suppliers of the five vegetable crops and peppers, respectively. Leontief technologies represent both monocrop and double-crop production systems; linear inverse demand functions represent four demand regions in the U.S. and Canada. By increasing production costs and reducing yields, a ban on methyl bromide decreases Florida's FOB revenues by 54% and increases those of Mexico by 65%. Price increases to U.S. fresh vegetable consumers range from near zero to over...
Tipo: Journal Article
Palavras-chave: Fresh vegetables; Methyl bromide; Pesticide; Quadratic programming; Spatial equilibrium; Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/15113

THE POTENTIAL FOR HIGH-VALUE AGRICULTURAL PRODUCTS UNDER THE NORTH AMERICAN FREE TRADE AGREEMENT: THE CASE OF BEEF IN MEXICO AND CANADA: COMMENT
Provedor de dados: 31
Autores: Lee,   Jonq-Ying; Brown,   Mark G.
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/15121

RETHINKING THE DEMAND FOR INSTITUTIONAL INNOVATION LAND RIGHTS AND LAND MARKETS IN THE WEST AFRICAN SAHEL
Provedor de dados: 31
Autores: Zimmerman,   Frederic; Carter,   Michael R.
In contrast to literature which focuses on the how collective action problems inhibit the supply of efficient institutions, this paper uses dynamic stochastic general equilibrium methods to study the demand for institutional innovation. Focusing on the innovation of alienabile land rights in the West African Sahel, this microeconomic approach offers several contributions to the theory of institutional innovation. First, in contrast to the representative agent or aggregate benefit-cost approaches used to derive the demand for institutional innovation in much of the literature, this paper explores the heterogeneity of demand across agents.  Second, in contrast to prior studies of the evolution of land rights, this analysis shows that, in West Africa at...
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/12624

Uma Abordagem Estratégica Sobre e Planificação de Programas de Pesquisa Agrícola na África Sub-Sahariana
Provedor de dados: 31
Autores: Boughton,   Duncan; Crawford,   Eric W.; Howard,   Julie A.; Oehmke,   James F.; Shaffer,   James D.; Staatz,   John M.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Downloads July 2008-June 2009: 5.
Ano: 1996
URL: http://purl.umn.edu/11391

New Zealand Agricultural Policy Review: 1994-1996 II: Agricultural Marketing Reform
Provedor de dados: 31
Autores: Bolger,   D.; Lincoln,   R.; Narayan,   P.; Rowe,   I.
Most of New Zealand's agricultural and horticultural exports are controlled or influenced in some way by producer boards or licensing authorities. These organisations are creatures of statute, and several of these statutes have been under review in recent years. The reform seeks to take into account the current deregulatory framework in New Zealand and further disengagement of Government. This paper outlines the current and proposed roles and functions of the boards and changes to the legislation that regulates their activities.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/12364

INCOME POTENTIAL AND GUIDELINES FOR THE CUSTOM DAIRY HEIFER
Provedor de dados: 31
Autores: Endsley,   Janice; Atkeson,   George W.; Nott,   Sherrill B.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/11797

Are Farmer Bankruptcies A Good Indicator of Rural Financial Stress?
Provedor de dados: 31
Autores: Stam,   Jerome M.
Farmer bankruptcies often are viewed as an important measure of rural economic well-being and of the success or failure of various Federal agricultural and rural policies. But the level of farmer bankruptcies is not a good indicator of rural financial health. Bankruptcies are only a subset of all farm business exits and a lagging indicator of economic stress. They do not reflect overall economic conditions in most rural areas because farming is a relatively small part of rural economic activity.
Tipo: Report
Palavras-chave: Agricultural Finance.
Ano: 1996
URL: http://purl.umn.edu/33675

USING INFORMATIONAL LABELING TO INFLUENCE THE MARKET FOR QUALITY IN FOOD PRODUCTS
Provedor de dados: 31
Autores: Caswell,   Julie A.; Mojduszka,   Eliza M.
In the United States, the federal government is increasingly using requirements for informational labeling on food products to influence 1) consumers' knowledge and purchasing patterns and 2) manufacturers' product offerings and marketing practices.  We discuss the economic rationale behind these regulations and issues related to judging their success or failure.
Tipo: Working or Discussion Paper
Palavras-chave: Food labeling; Food quality; Food safety; Information; Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/25989

DIFFERENCE IN RETAIL AND FOODSERVICE SEAFOOD BUYERS IMPRESSION OF AQUACULTURAL PRODUCT
Provedor de dados: 31
Autores: Cheng,   Hsiang-Tai; Kezis,   Alan S.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/27790

Process, Perception and Power: Notes from "Participatory" Research in a Zimbabwean Resettlement Area
Provedor de dados: 31
Autores: Goebel,   Allison.
Tipo: Working or Discussion Paper
Palavras-chave: Political Economy.
Ano: 1996
URL: http://purl.umn.edu/24107

AGRICULTURAL PRODUCTION CONTRACTS TO REDUCE NITRATE LEACHING: A WHOLE-FARM ANALYSIS
Provedor de dados: 31
Autores: Chu,   Mei-Chin; Swinton,   Scott M.; Batie,   Sandra S.; Dobbins,   Craig L.
Ten alternative seed corn contract specifications are evaluated with respect to nitrate leaching and profitability for the processor firm (principal) and contracted grower (agent). A whole-farm optimization and feasibility analysis suggest that contract terms can be used to reduce non-point source pollution.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/11806

A Dynamic Nutrient Carryover Model for Pastoral Soils and its Application to Optimising Fertiliser Allocation to Several Blocks with a Cost Constraint
Provedor de dados: 31
Autores: Woodward,   Simon J.R.
A dynamical model of soil phosphorus carryover in grazed pasture provides the basis for bioeconomic optimization of fertiliser rates. A linear constraint is introduced to optimise the allocation of limited funds to fertiliser on several farm blocks, each of which represents a different land and/or stock class. The optimal constrained maintenance application of fertiliser to each block is calculated, and an heuristic approach to this equilibrium is suggested. In some cases this involves withholding of fertiliser from unresponsive blocks. The dynamical model and economic optimisation method have been implemented in a commercial fertiliser planning decision support tool Outlook.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/12297

USING ACTUAL AND CONTINGENT BEHAVIOR DATA WITH DIFFERING LEVELS OF TIME AGGREGATION TO MODEL RECREATION DEMAND
Provedor de dados: 31
Autores: Cameron,   Trudy Ann; Shaw,   W. Douglass; Ragland,   Shannon E.; Callaway,   J. Mac; Keefe,   Sally.
A model of recreation demand is developed to determine the role of water levels in determining participation at and frequency of trips taken to various federal reservoirs and rivers in the Columbia River Basin. Contingent behavior data are required to break the near-perfect multicollinearities among water levels at some waters. We combine demand data for each survey respondent at different levels of time aggregation (summer months, rest of year, and annual), and our empirical models accommodate the natural heteroskedasticity that results. Our empirical results show it to be quite important to control carefully for survey nonresponse bias.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/30996

The Social Value of Using Biodiversity in New Pharmaceutical Product Research
Provedor de dados: 31
Autores: Simpson,   R. David; Craft,   Amy B.
Biologists and conservation advocates have expressed grave concern over perceived threats to biological diversity. "Biodiversity prospecting" -- the search among naturally occurring organisms for new products of agricultural, industrial, and, particularly, pharmaceutical value -- has been advanced as both a mechanism and a motive for conserving biological diversity. Economists and others have attempted to estimate the value of biodiversity for use in new pharmaceutical project research. Most of these existing approaches are incomplete, however, as they have not considered full social welfare, i.e., both consumer surplus and profit. This paper addresses social welfare by calibrating a model of competition between differentiated products with data from the...
Tipo: Working or Discussion Paper
Palavras-chave: Biodiversity prospecting; Differentiated products; Pharmaceutical research and development; Biogeographic models; Global warming; Habitat conversion; Health Economics and Policy; D43; L13; Q29.
Ano: 1996
URL: http://purl.umn.edu/10877

PRICE, QUALITY, AND PESTICIDE RELATED HEALTH RISK CONSIDERATIONS IN FRUIT AND VEGETABLE PURCHASES: AN HEDONIC ANALYSIS OF TUCSON, ARIZONA SUPERMARKETS
Provedor de dados: 31
Autores: Estes,   Edmund A.; Smith,   V. Kerry.
National opinion polls indicate that pesticide residues on fresh fruits and vegetables remain an important concern of American consumers, despite a decade-long increase in per capita consumption levels for fresh fruits and vegetables. Increased availability of organically grown fruits and vegetables may change consumer produce purchase behavior which is often dominated by appearance considerations. Domestic consumers likely consider and tradeoff price, visual appearance, and health risk when buying fresh produce. This paper uses an hedonic framework to examine price, appearance, and health risk considerations made by Tucson, Arizona shoppers in 1994.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics; Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/27897

IN SEARCH OF SOCIAL CAPITAL IN ECONOMICS
Provedor de dados: 31
Autores: Robison,   Lindon J.
The economic well-being of economic agents is assumed to be interpersonally dependent and varies according to the strength of relationships, values, and social bonds.  The extent of this interpersonal dependency is measured using social capital coefficients in a neoclassical model in which agents with stable preferences maximize utility.  The model's predictions are tested empirically by asking agents how their distribution of a scarce resource is altered by relationships.
Tipo: Working or Discussion Paper
Palavras-chave: Institutional and Behavioral Economics.
Ano: 1996
URL: http://purl.umn.edu/11589

Investment Analysis of Agri-Food Ventures: What Risk Premia are Appropriate? The Silence of the Literature
Provedor de dados: 31
Autores: Unterschultz,   James R.; Quagrainie,   Kwamena K.
Financial principles of project investment analysis deal with the cost and benefit flows over time. Invariably, the correct future cash flows and exact risks are unknown. The agricultural academic literature devotes substantial energy to discussing the estimation of the cash flows but it is relatively silent on applied estimation of risk. Empirical studies on agri-food ventures have made little or no attempt to estimate appropriate risk adjusted discount rates or other risk measures. Choice of discount rate has been arbitrary. Thus little guidance has been given to practitioners analysing agri-food investments as to the appropriate risk adjusted discounts rates. The Capital Market Line provides a relatively straightforward way to calculate risk premiums...
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/24131

EVOLVING ENTITLEMENTS: INTERVENING TO PREVENT A COLLECTIVE HARM
Provedor de dados: 31
Autores: Brookshire,   David S.; Ganderton,   Philip T.; McKee,   Michael.
When market transactions generate negative externalities, the injured party may initiate court action to prevent harm or to obtain compensation. The political response, in some cases, has been to broaden the set of agents who can intervene through the court, often by admitting entirely new categories of potential intervenors. We employ an experimental market setting to investigate the effect of an increase in the number of potential intervenors (introduced as admitting an additional class of persons having the necessary standing in law). The results suggest that there will be a substantial increase in the number of actual interventions. The increase means that social resources expended on interventions will increase and there may be a consequent reduction...
Tipo: Journal Article
Palavras-chave: Public Economics.
Ano: 1996
URL: http://purl.umn.edu/30991

International Internships in Agribusiness Curricula: A Proposal for Implementation
Provedor de dados: 31
Autores: Kennedy,   P. Lynn; Harrison,   R. Wes.
International internships complement classroom instruction in preparing students for careers in the agribusiness industry. For experiential learning to be an integral part of agribusiness management training, the student, industry and educational institution must each play a role in the design and implementation of the program. This paper discusses issues pertaining to the development and implementation of international internships and emphasizes the interrelationships between agribusiness students, industry and educators.
Tipo: Journal Article
Palavras-chave: Experiential learning; International internships; Agribusiness; Internship plan; Agribusiness; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/90395

The Environmental Component of the National Pilot Project Integrated Modeling System
Provedor de dados: 31
Autores: Gassman,   Philip W.; Hauck,   Larry M.
This paper briefly describes the environmental component of an integrated modeling system that has been developed for simulating the movement of nutrients (nitrogen and phosphorus) from dairy waste disposal fields through the Upper North Bosque River Watershed (UNBRW) stream network in Erath and Hamilton Countries, Texas, as part of the "Livestock and the Environment: A National Pilot Project" (NPP).  The environmental component consists of the Agricultural Policy/Environmental eXtender (APEX) model and the Soil Water Assessment Tool (SWAT).  The APEX model is designed to simulate the edge-of-field nutrient runoff and leaching loadings from the application of solid and liquid manure on dairy waste disposal fields that are subsequently routed through the...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/18663

Production Efficiency in Ukrainian Agriculture and the Process of Economic Reform
Provedor de dados: 31
Autores: Kurkalova,   Lyubov A.; Jensen,   Helen H.
A representative sample of 49 state and collective farms in Ukraine provides data in physical units on livestock and crop production and input use for 1989-92. The changes in production efficiency for beef, pork, dairy, winter wheat, grain, and potato production, investigated using stochastic frontier methods, show declining technical efficiency in livestock production and especially low marginal contribution of labor inputs. The number of workers, size of farm, and distance from nearest city are related to efficiency in agricultural production.
Tipo: Working or Discussion Paper
Palavras-chave: Technical efficiency; Panel data; Economies in transition; Frontier production function; Productivity Analysis.
Ano: 1996
URL: http://purl.umn.edu/18581

Minnesota Agricultural Economist 686
Provedor de dados: 31
Autores: Lazarus,   William F.; Molenaar,   Jim.
Using Surveys and Farm Records to Track Farmland Rental Rates
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/13193

SOME SPATIAL ASPECTS OF AN EXTERNALITY: THE CASE OF LIVESTOCK PRODUCTION FACILITIES; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Taff,   Steven J.
In our report to the Legislature (Taff et al. 1996), we examined the interrelationships among residential property sales and nearby feedlots in two southwestern Minnesota counties.  We found substantial support for such a link in the study area.  That relationship was positive, not negative as we had expected.  The effect was most pronounced for houses that are older, relatively lower in price, or located in small towns.  In this paper, I summarize the approach and discuss the findings of that research.  I then sketch out what I hope will prove a fruitful set of further inquiries into the question of multiple disamenities and hedonic price estimation.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/14411

Distributional Impacts of an Environmental Tax Shift: The Case of Motor Vehicle Emissions Taxes
Provedor de dados: 31
Autores: Walls,   Margaret; Hanson,   Jean.
One of the most common criticisms of pollution taxes is that they are often believed to be inequitable -- i.e., low income households are thought to be disproportionately harmed. In this paper, we assess the distributional impacts of three taxes aimed at reducing emissions from motor vehicles: (i) a tax on total annual emissions, (ii) a tax on emissions rates (in grams per mile), and (iii) a tax on annual miles traveled. We use two alternative measures of economic well-being, annual household income and a constructed measure of lifetime income. We find that all three fees look regressive, both on the basis of annual and lifetime income - though much less so on a lifetime income basis. However, if one of these fees is used to substitute for existing vehicle...
Tipo: Working or Discussion Paper
Palavras-chave: Motor vehicle emissions; Tax incidence; Lifetime income; Political Economy; H22; H23.
Ano: 1996
URL: http://purl.umn.edu/10895

An Assessment of the EPA's SO2 Emission Allowance Tracking System
Provedor de dados: 31
Autores: Lile,   Ronald D.; Bohi,   Douglas R.; Burtraw,   Dallas.
On November 8, 1996, various Environmental Protection Agency (EPA) officials, scholars and industry representatives gathered at Resources for the Future (RFF) to examine the EPA's method for classifying private SO2 allowance transactions by the Allowance Tracking System (ATS). The one-day workshop at RFF was designed to evaluate how well the EPA's classification scheme within the ATS currently meets the needs of constituencies with a vested interest in the allowance trading system, and to determine if other classifications would be more beneficial. The EPA has limited its collection of information to that which is necessary to ensure compliance with environmental goals. In particular, the EPA has interpreted its mission to be one of minimal interference in...
Tipo: Working or Discussion Paper
Palavras-chave: Transaction costs; Regulated industries; Electric utilities; Emissions; Environmental Economics and Policy; D23; D49; H70; K23; L94; Q25.
Ano: 1996
URL: http://purl.umn.edu/10890

REFERENCE OF 1996 U.S. REGIONAL SHEEP HEALTH AND MANAGEMENT PRACTICES
Provedor de dados: 31
Autores: Wineland,   Nora.
In 1995, the National Animal Health Monitoring System (NAHMS) collaborated with the Research and Education Division of the American Sheep Industry Association (ASI) in developing a needs assessment tool to identify the most important health and productivity factors for the sheep industry. In collaboration with the USDA's National Agricultural Statistics Service (NASS), a statistically designed producer sample was selected to provide estimates for the United States sheep population in the 48 contiguous states.   The NAHMS/ASI questionnaires were mailed to 19,807 sheep operations in January 1996; data were received and summarized from 5,174 respondents. It was estimated that in the 48 contiguous states, there were approximately 8,433,400 sheep as of January...
Tipo: Report
Palavras-chave: NAHMS; Sheep; Health; Disease; Death; Morbidity; Mortality; Economics; Predators; Vaccinations; Antibiotics; Income; Worms; Reproduction; Profitability; Regions; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/32751

SEARCH THEORY RISK PREFERENCE AND FARMLAND PRESERVATION
Provedor de dados: 31
Autores: Tavernier,   Edmund M.; Li,   Farong; Temel,   Tugrul T.
This paper uses search theory to examine the role that risk preference (RP) plays in farmland preservation.  Assuming that the distribution of the offer price is fixed, the analysis indicates that risk-averse agents have lower reservation prices than risk-neutral agents, and that agricultural land held by the former exits farming at a faster rate.  The results also show that farmland preservation policies which increase reservation prices have a greater capitalization effect if agents are risk-loving, and that such policies, while effectively protecting the interest of land speculators, may be less effective in serving the needs of farming and farm-held open space.
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/31653

The potential economic benefit of arsanilic acid to the Florida grapefruit industry
Provedor de dados: 31
Autores: Lee,   Jonq-Ying.
Tipo: Report
Palavras-chave: Agricultural and Food Policy; Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/52814

DETERMINANTS OF APPLE PURCHASES FOR OHIO CONSUMERS: IMPLICATIONS FOR OTHER STATES
Provedor de dados: 31
Autores: Jones,   Eugene.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/27782

A CONCEPTUAL FRAMEWORK FOR ANALYZING CALIFORNIA WATER ALLOCATION: ANALYSIS OF CALIFORNIA WATER SYSTEMS UNDER DROUGHT CONDITIONS
Provedor de dados: 31
Autores: Cappalla,   Rocco V.
Alleviating excess demand for water is a reoccurring issue in California. An analytical framework is developed to examine the different ways to eliminate excess demand for water in California.  Four ways are examined in the marshallian cross framework. First, shifting the supply schedule to the right. Second, shifting the demand schedule to the left. Third, increasing the price of water to the equilibrium point. Fourth, closing the excess demand gap by administratively rationing the quantity of water consumed. The role of institutions in determining the price of water and building infrastructure to increase the stock of water is examined  An analysis of household water consumption behavior during the drought of 1987-91 reveals that households voluntarily...
Tipo: Thesis or Dissertation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/11149

MEASURING PRODUCTIVITY GROWTH IN AUSTRALIAN BROADACRE AGRICULTURE
Provedor de dados: 31
Autores: Mullen,   John D.; Cox,   Thomas L.
An important source of growth for Australian broadacre agriculture has been technical progress. We compare alternative measures of productivity growth including the traditional Tornqvist-Thiel total factor productivity index; variants of this approach that allow decreasing returns to scale; the Fisher ideal index; other nonparametric measures that do not impose particular functional forms and an econometric estimate from a translog industry cost function. The annual growth in productivity in broadacre agriculture over the period from 1953 to 1994 was in the range of 2.4 to 2.6 per cent and hence was quite robust to measurement technique.
Tipo: Journal Article
Palavras-chave: Productivity Analysis.
Ano: 1996
URL: http://purl.umn.edu/22365

Economic Impacts of Pesticide Availability in U.S. Sorghum Production
Provedor de dados: 31
Autores: Segarra,   Eduardo; Morrison,   William P.; Abernathy,   John R.; Gwinn,   Christopher.
A national pesticide-use survey from sorghum producers and a survey of entomologists and weed scientists were used to determine the impacts of pesticide use on sorghum. A market framework was employed to derive the short-run welfare impacts to consumers and producers (users and non-users) of the removal of pesticides currently registered for use on sorghum. It was projected that the loss of atrazine, the most widely used pesticide in sorghum production, would have the largest overall impact, with an estimated total welfare loss between $58 and $65 million.
Tipo: Journal Article
Palavras-chave: Sorghum; Pesticide regulation; Consumer impacts; Producer (user and non-user) impacts; NAPIAP; Agribusiness; Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/90378

SUSTAINABLE DEVELOPMENT IN METROPOLITAN AREAS: AN INTRODUCTION; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Grillenzoni,   Maurizio; Canavari,   Maurizio.
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/14454

Zambia's Stop-And-Go Revolution: The Impact of Policies and Organizations on the Development and Spread of Maize Technology
Provedor de dados: 31
Autores: Howard,   Julie A.; Mungoma,   Catherine.
This paper explores how Zambia's policy and organizational environment has shaped the development, spread, and more recently, the disadoption of maize technology. It also traces the political motivations that drove the establishment of the policy and organizational framework supporting maize production and impeded the efficient operation of the parastatal-managed marketing system. Options facing Zambian policy makers for increasing food production under evolving political and economic conditions are discussed in the light of these experiences.
Tipo: Report
Palavras-chave: Food security; Food policy; Maize technology; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies; Downloads June 2008-July 2009: 14; Q18.
Ano: 1996
URL: http://purl.umn.edu/54689

AN AGENDA FOR THE DESIGN AND STUDY OF INTERNATIONAL ENVIRONMENTAL AGREEMENTS
Provedor de dados: 31
Autores: Batabyal,   Amitrajeet A.
The combination of a general greening of international political debate, and the events of 1992 at the Rio Earth summit have led to great interest in the question of global environmental protection. While it is recognized that international environmental agreements (IEAs) are the means by which the earth’s fragile environment is most likely to be protected, this recognition has been recent. Hence, there is very little formal research on the design and study of IEAs. As such, in this paper, I propose and describe a research agenda for the design and study of IEAs. Very generally, I propose that we frame the IEA design question as a problem in mechanism design. We will then be able to use, inter alia, the theory of common agency and the theory of hierarchies...
Tipo: Working or Discussion Paper
Palavras-chave: International; Environmental; Agreement; Design; Game; Environmental Economics and Policy; International Relations/Trade; D73; D82; L50.
Ano: 1996
URL: http://purl.umn.edu/28353

ACCOUNTING FOR AGGREGATION BIAS IN ALMOST IDEAL DEMAND SYSTEMS
Provedor de dados: 31
Autores: Mittelhammer,   Ronald C.; Shi,   Hongqi; Wahl,   Thomas I.
This study revisits the consistent aggregation (over households) property of almost ideal demand system (AIDS) models and presents a method to explicitly account for expenditure aggregation bias when estimating the aggregate AIDS model with time-series data. Ignoring aggregation bias can lead to biased and inconsistent parameter estimates and can cause aggregate demand functions to be inconsistent with the demand functions at the individual household level. Recognizing the general limited information contained in aggregate time-series data for explicitly modeling aggregation bias, we present a new method of constructing an aggregation bias term that is derived from the proportions of household in different income groups. This information is generally...
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/31032

Impacts of Agricultural Practices and Policies on Potential Nitrate Water Pollution in the Midwest and Northern Plains of the United States
Provedor de dados: 31
Autores: Wu,   JunJie; Lakshminarayan,   P.G.; Babcock,   Bruce A.
An empirical model is developed to estimate the effects of alternative farming practices on potential nitrogen runoff and leaching in 128,591 National Resources Inventory sites across the Midwest and the Northern Plains of the United States. This model integrates the effects of soils, climate, crops, and management practices on nitrogen loss. The model is applied to evaluation of two policy scenarios. The first scenario reduces N fertilizer application rates by 25 percent through the soil N test. The second replaces continuous cropping practices with crop rotations. The results show that policy effects vary widely across the study region. This analysis emphasizes the importance of conducting policy analysis on a disaggregated scale.
Tipo: Working or Discussion Paper
Palavras-chave: Farming practices; Nitrogen runoff and leaching; Spatial heterogeneity; Disaggregated policy analysis; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/18386

IDENTIFICATION OF FACTORS WHICH INFLUENCE THE TECHNICAL INEFFICIENCY OF INDIAN FARMERS
Provedor de dados: 31
Autores: Coelli,   Tim J.; Battese,   George E.
The agricultural production of Indian farmers is investigated using a stochastic frontier production function which incorporates a model for the technical inefficiency effects. Farm-level data from the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) are used. Variables considered in the model for the inefficiency effects include the age and level of education of the farmers, farm size and the year of observation. The parameters of the stochastic frontier production function are estimated simultaneously with those involved in the model for the inefficiency effects. This approach differs from the usual practice of predicting farm-level inefficiency effects and then regressing these upon various factors in a second-stage of...
Tipo: Journal Article
Palavras-chave: International Development; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/22395

How Non-Research Investments Affect Research Impact: The Case of Maize Technology Adoption in Southern Mali
Provedor de dados: 31
Autores: Boughton,   Duncan; Frahan,   Bruno Henry de.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/11287

ANALYZING ENVIRONMENTAL POLICY WITH POLLUTION ABATEMENT VERSUS OUTPUT ANALYZING ENVIRONMENTAL REDUCTION: AN APPLICATION TO U.S. AGRICULTURE
Provedor de dados: 31
Autores: Schamel,   Guenter; de Gorter,   Harry.
A model is developed that derives optimal pollution levels and determines the welfare economics of pollution reduction, differentiating between abatement and output reduction. It is suitable to analyze alternative policy instruments aimed to reduce external costs of agricultural production. The model is applied to the U.S. corn sector and we simulate the effects of stylized environmental policies for pesticide use on social welfare and environmental quality. The simulation results indicate that across policy scenarios, fairly modest reductions in output may induce significant gains in social welfare and environmental quality.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/6853

WHAT IS HAPPENING TO U.S. FARM POLICY: A CHRONOLOGY AND ANALYSIS OF THE 1995-96 FARM BILL DEBATE
Provedor de dados: 31
Autores: Orden,   David; Paarlberg,   Robert L.; Roe,   Terry L.
This paper presents a chronology of the 1995-96 farm bill debate, which was historic in several dimensions. Victories in the 1994 mid-term elections gave Republican majorities control of Congress for the first time in forty years. An omnibus budget reconciliation bill became the principal vehicle around which the Republicans organized their political agenda. In the highly-partisan atmosphere that followed, the debate on farm policy centered on the level of spending, the structure of the main commodity programs, and the programs for dairy, sugar and peanuts. The initial challenge faced by the new agriculture chairman in the House of Representatives was to find policies consistent with the election-year Republican rhetoric, while simultaneously putting...
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/51210

How Can Safety Nets Do More with Less? General Issues with Some Evidence from Southern Africa
Provedor de dados: 31
Autores: Haddad,   Lawrence James; Zeller,   Manfred.
This paper reviews design features by which safety nets might do more with less. It reviews the current evidence on their success in practice–including three brief reviews of southern Africa experience–and suggests a role for future policy research in furthering the goal of designing safety nets that reduce poverty in a cost-effective way. In doing so, the paper highlights a tension between the large gaps in our knowledge about the design of safety nets and the demand for short-run answers in this area.
Tipo: Working or Discussion Paper
Palavras-chave: Southern Africa; Welfare Economics; Safety Nets; Research; Poverty Alleviation; Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/97304

PRISAS/INSAH-MSU-USAID Sahel Regional Food Security Project: Results and Impact
Provedor de dados: 31
Autores: Dione,   Josue; Tefft,   James F.
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty; Downloads July 2008-June 2009: 8.
Ano: 1996
URL: http://purl.umn.edu/11369

Integrating Knowledge to Improve Dairy Farm Sustainability: Dairy Farm Sustainability Project Final Report
Provedor de dados: 31
Table of Contents...Executive Summary; Part I: Objectives, Procedures, and Lessons Learned D.G. Fox, C.N. Rasmussen, R.E. Pitt and J.J. Hanchar; Part II: Plant and Animal Nutrient Management S.D. Klausner, D.G. Fox, T.P.Tylutki, W. Stone, L. Chase and R.E. Pitt; Part Ill: Environmental Losses and Nutrient Flows J.L. Hutson, R.K Koelsch, R.E. Pitt, and R.I Wagenet; Part IV: Economic Evaluation of Alternatives to Improve Nutrient Efficiency C.N. Rasmussen, J.J. Hanchar and P.E. Wright Part V: Manure Management R.K Koelsch; Part VI: Measuring Nutrient Loads from a Drainage Basin Within the Farm Boundaries J.B. Houser, R.E. Pitt, J.L. Hutson and P.E. Wright; Part VII: Farm A Environmental Assessment K.J. White and P.E. Wright; Part VIII: Pathogen Prevalence...
Tipo: Technical Report
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/122827

BANCOSOL: THE CHALLENGE OF GROWTH FOR MICROFINANCE ORGANIZATIONS
Provedor de dados: 31
Autores: Gonzalez-Vega,   Claudio; Schreiner,   Mark; Meyer,   Richard L.; Rodriguez-Meza,   Jorge; Navajas,   Sergio.
This paper focuses on the difficulties inherent in the prudent management of growth of microfinance organizations and on potential limits to the increased efficiency, profitability, and sustainability expected from growth and large size.  The paper addresses both positive and negative implications of rapid growth for microfinance organizations.  The experience of BancoSol in Bolivia is used to illustrate these questions. Building upon the successful experience of PRODEM, BancoSol was chartered as a private commercial bank in 1992.  The paper discusses the intangible assets inherited from PRODEM that gave BancoSol a head start and the additional advantages that resulted from formalization as a bank, in particular from the authorization to mobilize deposits....
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural Finance.
Ano: 1996
URL: http://purl.umn.edu/28333

COMMON PROPERTY ISSUES AND ALASKA'S BERING SEA COMMUNITIES
Provedor de dados: 31
Autores: Merculieff,   Larry.
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/17279

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Front Cover; Editorial Information; Contents Pages
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/31031

MANAGING RESOURCES FOR SUSTAINABLE AGRICULTURE IN SOUTH ASIA
Provedor de dados: 31
Autores: Gill,   Gerard J.
Tipo: Working or Discussion Paper
Palavras-chave: Production Economics; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/16329

IMPLICATIONS OF ALTERNATIVE POLICIES ON NITRATE CONTAMINATION OF GROUNDWATER
Provedor de dados: 31
Autores: Chowdhury,   Manzoor E.; Lacewell,   Ronald D.
This study estimates the cost effectiveness of alternative environmental policies for controlling nitrate contamination of groundwater in the Seymour aquifer region of Texas. Results from biophysical simulation model are integrated with a farm-level optimization model. The study also compares the cost of bottled water, used as the lower-bound estimate of benefits of groundwater protection, with the least costly environmental policy. Results indicate that the least-cost policy alternative for the region is about $1 million either to farmers or to the local government and it is approximately three times the cost of bottled water.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/30995

EMPLOYMENT IN AGRIBUSINESS AND PURCHASES OF AGRICULTURAL PRODUCTS: THE EFFECTS OF MONETIZATION IN YUGOSLAVIA
Provedor de dados: 31
Autores: Miljkovic,   Dragan; Garcia,   Roberto J.
Efforts to stabilized employment and output in the agricultural sector of Yugoslavia through monetization contributed to inflationary pressures. Granger causality tests suggested that increases in the rate of growth in the supply of money to subsidize state-owned agribusiness were insufficient to maintain purchases of wheat and corn, but did cause purchases of cattle and swine. This result may be explained by producers having more flexibility in grain marketing (i.e., storage options and private buyers) and the perishability issues related to livestock marketing. The policy to maintain employment through monetization is shown to have been ineffective.
Tipo: Journal Article
Palavras-chave: Agribusiness; Employment; Granger causality; Inflation; Money supply; State purchases; Yugoslavia; Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/15123

Evaluating the Quebec Beef Market: An Alberta Perspective
Provedor de dados: 31
Autores: Vincent,   Michel; Unterschultz,   James R.; Price,   Mick; Lerohl,   Mel L.
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/24075

Hidden harvest: U.S. benefits from international research aid
Provedor de dados: 31
Autores: Pardey,   Philip G.; Alston,   Julian M.; Christian,   Jason E.; Fan,   Shenggen.
This report spells out the benefits to the United States from its partnership with the CGIAR.  Using wheat and rice to illustrate the gains from international research on important food crops, the report shows that U.S. investments in CGIAR wheat and rice research have paid off many times over for U.S. farmers
Tipo: Report
Palavras-chave: Agricultural assistance; American; Economic aspects; Developing countries; Agricultural research; Developing countries; Finance; Investments; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/55649

TRAVEL COST MODELS OF THE DEMAND FOR ROCK CLIMBING
Provedor de dados: 31
Autores: Shaw,   W. Douglass; Jakus,   Paul M.
In this paper we estimate the demand for rock climbing and calculate welfare measures for changing access to a number of climbs at a climbing area.  In addition to the novel recreation application, we extend the travel cost methodology by combining the double hurdle count data model (DH) with a multinomial logit model of site-choice.  The combined model allows us simultaneously to explain the decision to participate and to allocate trips among sites.  The application is to climbers who visit one of the premiere rock-climbing areas in the northeastern United States and its important substitute sites.  We also estimate a conventional welfare measure, which is the maximum WTP to avoid loss of access to the climbing site.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/31408

ASYMMETRIC INFORMATION AND THE PRICING OF NATURAL RESOURCES: THE CASE OF UNMETERED WATER; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Smith,   Rodney B.W.; Tsur,   Yacov.
This paper uses mechanism design theory to (i) propose a mechanism to price irrigation water when farmers are heterogeneous in their production technologies (adverse selection) and their individual water uses are unobserved (moral hazard) and (ii) discusses briefly when such a mechanism might be economically unreasonable. Unmetered irrigation water is often priced by imposing per-acre fees on cultivated acreage or by charging per-unit fees on observable inputs or outputs.  The offered pricing procedure is based on the observed output and achieves a first-best outcome when implementation is free of transaction costs.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/14368

BOOK REVIEWS
Provedor de dados: 31
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/22392

MEASURING THE QUALITY OF IMPORTED TOBACCO
Provedor de dados: 31
Autores: Davis,   George C.; Hewitt,   William J.
Domestic tobacco producers have faced increasing competition from imported tobacco since the late 1970s. Much of the debate has centered on the unknown quality of imported tobacco. This study provides a discussion and clarification of the concept of quality, and demonstrates a method of measuring the average quality of imported tobacco. The results show that since 1977, imported tobacco has been steadily decreasing in average quality and moving toward lower quality producing countries and types of tobacco. The reasons for this decline are discussed along with the policy implications.
Tipo: Journal Article
Palavras-chave: Index numbers; Quality; Tobacco; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/15236

How Has The Domestic Wheat Market Changed Since Deregulation?
Provedor de dados: 31
Autores: Wait,   Marcus J.; Ahmadi-Esfahani,   Fredoun Z.
This article evaluates the impact of deregulation on wheat growers. marketers and buyers. An analysis of market structure focuses on the market prior to deregulation, the stimulus for change and the ways in which parts of the wheat marketing chain have developed since deregulation. The change in AWB pool deductions for storage, handling and transportation charges, and the consequent change in seasonal marketing margins since deregulation are explored. The main finding of this preliminary study is that deregulation has been associated with reductions in freight and handling charges as well as seasonal marketing margins. Factors other than deregulation appear to have contributed to the reduction in the marketing margin and would bear further investigation.
Tipo: Journal Article
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/12370

RISK SHARING AND INFORMATION: THEORY AND MEASUREMENT IN VILLAGE ECONOMIES
Provedor de dados: 31
Autores: Ligon,   Ethan.
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/25091

CHANGING FOOD CONSUMPTION PATTERNS, THEIR EFFECT ON THE U.S. FOOD SYSTEM, 1972-1987: AN INPUT-OUTPUT PERSPECTIVE
Provedor de dados: 31
Autores: Schluter,   Gerald E.; Lee,   Chinkook.
Output growth of the U.S. Food System is examined to apportion first the importance of domestic food demand and then the importance of components of domestic food demand. Growth of U.S. food processing output is heavily dependent upon domestic food demand and particularly its personal consumption expenditures components - food purchased for off-premise consumption and purchased meals and beverages.
Tipo: Journal Article
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/27065

THE ECONOMICS OF PRIVATE VOLUNTARY ORGANIZATIONS AND COLLECTIVE ACTION IN DEER MANAGEMENT
Provedor de dados: 31
Autores: Steffens,   Karin; Schmid,   A. Allan.
Game theory and other approaches have been used to characterize problems involving high-exclusion-cost goods which also have the characteristic that marginal cost of an additional user is zero over some range. These analytical tools have made valuable contributions to understanding voluntary organizations and collective action. Resource systems for which composition or scale of the resource is an important factor do not fit neatly into the types of problems which are typically analyzed. The Quality Deer Management Association (QDMA) in Southern Wisconsin is used as an example to illustrate where the existing literature must be modified to take account of particular features of this resource problem. Schelling's multi-person prisoner's dilemma model is...
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/11633

RUSSIA'S FOOD ECONOMY IN TRANSITION: WHAT DO REFORMS MEAN FOR THE LONG-TERM OUTLOOK?
Provedor de dados: 31
Autores: von Braun,   Joachim; Serova,   Eugenia; Seeth,   Harm Tho; Melyukhina,   Olga.
Tipo: Report
Palavras-chave: Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/16327

DID THE 1995 FARM BILL ADDRESS THE CRITICAL ISSUES? DISCUSSION
Provedor de dados: 31
Autores: Salathe,   Larry E.
In 1995, for the first time since the 1930s, the United States failed to pass new farm program legislation. The inability to pass farm legislation occurred despite bipartisan agreement that farm programs should continue the trend over the past decade of less government intervention. This paper discusses the sequence of events, the role of agricultural economists, the major issues, and the lessons learned from the 1995 Farm Bill debate. The trend toward declining government intervention in agriculture will require that the profession look increasingly to the private sector for solutions to the problems facing agriculture in the twenty-first century.
Tipo: Journal Article
Palavras-chave: Agricultural policy; Congressional debate; Equity; Farm programs; Policy analysis; Price and income support; Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/15232

Environmental Management in Kenya's Arid and Semi-Arid Lands: An Overview
Provedor de dados: 31
Autores: Southgate,   Chris; Hulme,   David.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/30572

THE ECONOMICS OF AGRICULTURAL DECOLLECTIVIZATION IN CENTRAL AND EASTERN EUROPE
Provedor de dados: 31
Autores: Mathijs,   Erik; Swinnen,   Johan F.M.
The break-up of large-scale agricultural production units into individually operated farms differs considerably across Central and Eastern European countries.  Family farming is not well developed in countries where large-scale successor organizations to the former state and collective farms still dominate, such as Slovakia, Hungary and the Czech Republic. However, family farms are important in Albania and Latvia, where a massive break-up of the collective farms resulted in a domination of small-scale production units.  Also within countries there exist wide variations in the decollectivization of different regions and agricultural subsectors.  We develop an economic model of decollectivization to explain these variations and derive a series of...
Tipo: Working or Discussion Paper
Palavras-chave: Industrial Organization; Production Economics.
Ano: 1996
URL: http://purl.umn.edu/31868

Impacts of Alternative Farm Programs on the North Dakota Agricultural Economy
Provedor de dados: 31
Autores: Koo,   Won W.; Duncan,   Marvin R.; Taylor,   Richard D.; Aakre,   Dwight G.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/23427

Zambia's Stop-And-Go Revolution: The Impact of Policies and Organizations on the Development and Spread of Hybrid Maize
Provedor de dados: 31
Autores: Howard,   Julie A.; Mungoma,   Catherine.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Downloads July 2008-July 2009: 17.
Ano: 1996
URL: http://purl.umn.edu/11274

Facility Closures and Downsizing in the Rural Midwest: A Preliminary Assessment of Extent and Effects
Provedor de dados: 31
Autores: Leistritz,   F. Larry; Knapp,   Tim; Root,   Kenneth A.; Walzer,   Norman.
Rural communities across the United States have been undergoing dramatic economic restructuring. As a result, many rural communities are struggling to recover from the closure or downsizing of manufacturing facilities and to implement economic development programs. The goal of this study was to gain new insights into community, organizational, and economic factors that underlie effective rural community response to economic distress. The study covers communities with populations between 500 and 10,000 in the states of Illinois, Iowa, Minnesota, Missouri, North Dakota, and South Dakota. Data come from a survey of local government officials of all towns in the six states with populations between 500 and 10,000. Surveys were mailed to 2,118 towns during the...
Tipo: Report
Palavras-chave: Agricultural Finance; Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/51162

Food Security II Cooperative Agreement: Project Fact Sheets (1995/96 version)
Provedor de dados: 31
Autores: Weber,   Michael T.
Individual project fact sheets.
Tipo: Report
Palavras-chave: Food security; Food policy; Food Security and Poverty; Downloads June 2008 - June 2009: 6; Q18.
Ano: 1996
URL: http://purl.umn.edu/54696

FORMS OF PROPERTY RIGHTS AND THE IMPACTS OF CHANGING OWNERSHIP
Provedor de dados: 31
Autores: McCay,   Bonnie J.
Tipo: Conference Paper or Presentation
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/17276

END MATERIAL
Provedor de dados: 31
Includes: Guidelines for Manuscript Submission and Back Cover
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/31645

PROCEEDINGS OF THE ANNUAL MEETING S-216 REGIONAL PROJECT FOOD DEMAND AND CONSUMPTION BEHAVIOR
Provedor de dados: 31
Autores: Ranney,   Christine K.
Over the past few years the S-216 Regional Project has devoted one day of the two-day annual meeting for a symposium. This year's symposium incorporated presentations by scholars from a number of fields: economics, agricultural economics, anthropology and social psychology. The latter two fields were represented by Mahadev L. Apte and David Brinberg who elucidated the perspectivesoftheirrespective disciplines and enhanced ourunderstanding ofhowthose disciplines conceptualize and empirically study food demand and consumption behavior. Prof. Apte's paper is included as the first in this proceedings volume. Because Prof. Brinberg's work on the role of and means for measuring the effect of attitudes on food consumption decisions (the basis for his...
Tipo: Technical Report
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/122818

CURRENT STATUS OF BENEFITS TRANSFER IN THE U.S.: A REVIEW
Provedor de dados: 31
Autores: Bergstrom,   John C.
Benefits transfer refers to the use of existing benefit estimates in a different, but similar context as compared to the original study which generated the benefit estimates.  Benefits transfer techniques include fixed value transfer, expert opinion, and value estimator models.  Although benefits transfer techniques are subject to a number of conceptual and empirical limitations, these techniques are widely applied in the United States in economic assessments of public policies and projects.  The application of benefits transfer in natural resource damage assessment cases is relatively untested in the United States court system.
Tipo: Working or Discussion Paper
Palavras-chave: Benefits transfer; Conceptual background; United States applications; Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/16636

New Zealand Agricultural Policy Review: 1994-1996 I: Macro Policy
Provedor de dados: 31
Autores: Johnson,   R.W.M.
The period under review has seen a resurgence of economic growth in New Zealand with consequent improvements in employment and a turn-around in the fiscal deficit. Inflation has been controlled by strict monetary policy with consequent effects on the TWI. As a result, prices of tradable goods have been depressed in a period of growth. The agricultural export sector has been disadvantaged in this environment and shows little real growth in output but continues its remarkable productivity gains. The policy parameters for agriculture continue to be set in the macroenvironment as set out in previous reviews. This article brings up to date the discussion of national policy attitudes and performance of the agricultural sector while a second article sets out the...
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/12367

THE CURRENT AND FUTURE WORLD FOOD SITUATION: IS THERE AN EMERGING FOOD SHORTAGE?
Provedor de dados: 31
Autores: Senauer,   Benjamin; Stevens,   Stanley C.
This paper gives an overview of the current and projected food situation in the U.S. and the world.
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/14394

AGRICULTURAL ACTIVITIES AND SUBSTRUCTURES IN ARMENIA
Provedor de dados: 31
Autores: Meloya,   Sergei; Nichols,   John P.
The Armenian land privatization program  is unique among former Soviet Republics in regard to the speed and completeness of its implementation.  Armenia is the smallest of the Republics, with a population of 3.7 million, and was left highly dependent on outside sources for energy and raw materials for industries, and grain for its people and livestock.  Privatization, began in 1991, was largely completed by 1993.  The greatly increased number of individual owners created a need for major restructuring of the industries supplying agriculture and marketing its outputs.  Problems in the substructures from technical supplies to storage and marketing are described.  Recommendations are for the adoption of policies in the substructural spheres of agriculture...
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/23989

Environmental and Trade Policies: Some Methodological Lessons
Provedor de dados: 31
Autores: Smith,   V. Kerry; Espinosa,   Juan Andres.
This paper describes the results of using a new computable general equilibrium model for the European Union that incorporates local and transboundary externalities to evaluate the effects of trade policy reform. In contrast to all past theoretical and empirical research, this model includes the morbidity effects of three criteria air pollutants as nonseparable arguments of household preferences. The model is based on the Harrison-Rutherford Wooton model that identifies 11 regions, six aggregate commodities and three factor inputs. Three modifications were made to the model: (a) Stone Geary utility functions were used to characterize preferences for each consumer; (b) nine morbidity effects due to the three air pollutants were introduced as translating...
Tipo: Working or Discussion Paper
Palavras-chave: Trade and environmental policy; CGE models; Environmental Economics and Policy; Q20; H41.
Ano: 1996
URL: http://purl.umn.edu/10638

On-farm Costs of Soil Salinisation: a Case Study for the Liverpool Plains in New South Wales
Provedor de dados: 31
Autores: Greiner,   Romy.
Land affected by a high water table displays waterlogging and salinity effects. This causes costs to farmers through additional land management problems, loss of soil productivity and results in a decline of the farm's capital value. A multi-period mathematical model is developed to investigate best land and financial management strategies for such farms. Water tables rise mainly due to ground water import caused by high recharge in the surrounding parts of the catchment. The hydrological connection between model farm and catchment is established through the variable "condition of the upper aquifer". This paper analyses the effects of different levels of ground water import in terms of progress of soil salinisation, associated farm management responses and...
Tipo: Journal Article
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/12301

A User's Guide to SIDE (Software for Intake Distribution Estimation)
Provedor de dados: 31
Autores: Novenario,   Mary Jane.
Tipo: Working or Discussion Paper
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/18642

Impacts of the Armey and Shelby Flat Tax Proposal on North Dakota Representative Farms
Provedor de dados: 31
Autores: Duncan,   Marvin R.; Koo,   Won W.; Taylor,   Richard D.
Tipo: Technical Report
Palavras-chave: Farm Management; Financial Economics.
Ano: 1996
URL: http://purl.umn.edu/120987

La productivité des cultures vivrières et commerciales au Sénégal: survol historique, nouveaux resultats d'enquetes et implications politiques
Provedor de dados: 31
Autores: Kelly,   Valerie A.; Diagana,   Bocar N.; Reardon,   Thomas; Gaye,   Matar; Crawford,   Eric W.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Productivity Analysis; Downloads May 2008-June 2009: 12.
Ano: 1996
URL: http://purl.umn.edu/11359

The Magnitude of and Factors Influencing Product Losses in 141 Fluid Milk Plants in the United States
Provedor de dados: 31
Autores: Stephenson,   Mark W.; Aplin,   Richard D.; Erba,   Eric M.; Mattison,   Jay.
Tipo: Technical Report
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/122825

Japanese Agricultural Policies Towards 2000: Swimming with the Tide
Provedor de dados: 31
Autores: Riethmuller,   Paul C.; Kobayashi,   S.; Shogenji,   S.
Japanese agricultural policy has undergone substantial change in the last year. Since the completion of the Uruguay Round, the rice market has been partially opened, import quotas on agricultural products have been replaced by tariffs and there has been a general shift away from consumer funding of agricultural programs to funding by taxpayers. These changes are making Japanese agricultural policies more transparent and more open to scrutiny. There is now recognition in Japan that the changes are irreversible and that agriculture will be faced with increasing competition from imports.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/12304

TRADE IN MINOR OILSEEDS: A SPATIAL EQUILIBRIUM ANALYSIS OF SUNFLOWER AND CANOLA
Provedor de dados: 31
Autores: Johnson,   D. Demcey; Satyanarayana,   Vidyashankara; Dahl,   Bruce L.; Dooley,   Frank J.
A spatial-equilibrium model of trade in sunflower and canola (seed, oil, and meal) is used to assess alternative trade policy scenarios and their implications for North American producers. Simulations address effects of the U.S. SOAP program, NAFTA, the GATT agreement, EU supply restrictions, and tariffs in major import markets.
Tipo: Working or Discussion Paper
Palavras-chave: Minor oilseeds; Sunflower; Canola; Trade.; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/23346

IMMIGRATION, MEAT PACKING, AND TRADE: IMPLICATIONS FOR IOWA
Provedor de dados: 31
Autores: Huffman,   Wallace E.; Miranowski,   John A.
For a postscript copy of this paper, click &lt;a href="/Data/isu/isu285.ps"&gt; here.   The paper examines changes in employment and wage patterns, industrial restructuring, and foreign competition that affect opportunities of recent immigrants to the non-metropolitan Midwest, especially to Iowa.  The focus is on food and kindred products where meat and poultry packing and processing are major components.  Although total employment in this industry declined between 1980 and 1990, a significant increase in employment of Hispanic- and Asian- origin persons occurred in Iowa.  As unions weakened and the real wage rate declined sharply during 1980-85 in meat and poultry packing and processing, new job opportunities for recent immigrants became available.  These...
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade; Labor and Human Capital; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18234

DISCUSSION: POLICY DEVELOPMENT AND PROGRAM ASSESSMENT NEEDS: U.S. PRODUCER PERSPECTIVE
Provedor de dados: 31
Autores: Vitaliano,   Peter.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/16955

Agricultural Extension in the Eastern Caribbean: Some Lessons Learnt
Provedor de dados: 31
Autores: Campbell,   Dunstan A.C.; Henderson,   Thomas H.
Tipo: Journal Article
Palavras-chave: Organization of Eastern Caribbean States Agriculture; Agricultural Extension; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/45594

MARKETING OBJECTIVES AMONG RURAL FOOD RETAILERS
Provedor de dados: 31
Autores: Stegelin,   Forrest E.
Food retailers representing four retailer types (family operated grocery stores, produce markets, meat/egg/dairy markets, and convenience stores) in rural Georgia communities were surveyed as to their marketing objectives. Qualitative marketing objectives were ranked by the marketers as to marketing intentions, and by customers as to marketing expectations. More definitive and quantitative marketing objectives were also ranked by the food retailers as to the priority of implementation in their own retail establishment. Differences in the rank order of marketing objectives were observed within and among the four food retailer categories. Without exception, subtle differences in the rankings occurred.
Tipo: Journal Article
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/27776

Generic Advertising Wearout: the Case of the New York City Fluid Milk Campaign
Provedor de dados: 31
Autores: Reberte,   J. Carlos; Kaiser,   Harry M.; Lenz,   John E.; Forker,   Olan D.
Thispaperexaminestwo majorgenericfluidmilkadvertising campaigns in New York City during the 1986-92 period Estimates from a time-varying parameter model show that the evolution ofthe impact ofgeneric advertising on fluid milk sales over each campaign followed a bell-shaped pattern. Results also show that the first campaign was effectivefor twice aslongasthesecondcampaignandthat it had a higher peak and average advertising elasticity. These findings may reflect long-term generic milk advertising wearout in the New York City market.
Tipo: Technical Report
Palavras-chave: Advertising wearout; Generic milk advertising; Time-varying parameters; Livestock Production/Industries; Marketing.
Ano: 1996
URL: http://purl.umn.edu/122816

Testing Structural Change and Estimation of U.S. Demand for Meat
Provedor de dados: 31
Autores: Mao,   Weining; Koo,   Won W.
Tipo: Technical Report
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/121041

Micro and Small Enterprise Baseline Survey in Central and Northern Mozambique - Summary of Survey Objectives, Methodology and Contents
Provedor de dados: 31
Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
Tipo: Working or Discussion Paper
Palavras-chave: Food security; Food policy; Mozambique; Micro-enterprise; Small-enterprise; Food Security and Poverty; Q18.
Ano: 1996
URL: http://purl.umn.edu/56020

CONSUMER PROMOTION AND PURCHASE TIMING: THE CASE OF CHEESE
Provedor de dados: 31
Autores: Gould,   Brian W.
The dynamics of cheese purchases is analyzed by estimating a series of econometric models of duration based on a 170 week household panel. Besides purchase quantity and price data, information with respect to coupon use and household demographic characteristics are used in a variety of models which build upon each other in terms of assumed distribution of interpurchase time, effect of previous purchases, role of demographic characteristics and effect of unobserved interpurchase time heterogeneity. Likelihood ratio tests clearly reject the null hypothesis that coupon use has no impact on cheese purchase timing.
Tipo: Working or Discussion Paper
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/12664

INDIGENOUS LAND RIGHTS IN SUB-SAHARAN AFRICA: APPROPRIATION, SECURITY AND INVESTMENT DEMAND
Provedor de dados: 31
Autores: Sjaastad,   Espen; Bromley,   Daniel W.
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/12610

FARM MACHINERY ECONOMIC COSTS FOR 1996: MINNESOTA ESTIMATES WITH EXPANDED TILLAGE DATA FOR U.S. AND CANADA
Provedor de dados: 31
Autores: Lazarus,   William F.
The tables in this publication estimate farm machinery operations function costs for 1996.  The estimates use an economic engineering approach.  The data represents an average farming industry cost for specified machines and operations.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural Finance; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/13912

Market Information Sources Available Through the Internet: Daily to Yearly Market and Outlook Reports, Prices, Commodities and Quotes
Provedor de dados: 31
Autores: Le Vallee,   Jean-Charles.
The WWW, along with email, are simple forms of information technology which have become easily accessible through the Internet. They offer great sources of up-to-date information and data-sets of all kinds. They allow you to get in contact, communicate and exchange information in electronic form. Of particular interest are the increasing number of web sites which pertain to agriculture and notably to markets. You may find quotes on futures within 10 minutes of their actual calls, and you may also find outlook reports on specific commodities for the years to come. This paper serves as a guide to these different sources on market information presently available on the Internet1. These sources may be daily, weekly, monthly or yearly reports, outlook reports,...
Tipo: Report
Palavras-chave: Food security; Food policy; Internet information sources; Marketing; Downloads May 2008-July 2009: 9; Q10.
Ano: 1996
URL: http://purl.umn.edu/54686

WHAT'S DRIVING FOOD DISTRIBUTION - FORCES FOR CHANGE
Provedor de dados: 31
Autores: Kaufman,   Phillip R.
Tipo: Journal Article
Palavras-chave: Agribusiness; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/27789

WOMEN'S BARGAINING POWER IN HOUSEHOLD ECONOMIC DECISIONS: EVIDENCE FROM GHANA
Provedor de dados: 31
Autores: Doss,   Cheryl R.
In this paper, the percentage of assets held by women within the household is used as a measure of women's bargaining power. The assets used in this paper include land, savings, and business assets.  Using detailed household survey data from Ghana, I demonstrate that the share of assets owned by women has a significant impact on household expenditure decisions. This provides additional support for the notion that women's bargaining power can be measured, at least in some dimensions, and that women's bargaining power is an important determinant of household economic decisions.  It suggests that other measures  of women's bargaining power may also be useful for understanding household decisions.
Tipo: Working or Discussion Paper
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/13517

THE TROUBLED AMERICAN ECONOMY: AN INSTITUTIONAL POLICY ANALYSIS
Provedor de dados: 31
Autores: Cochrane,   Willard W.
Tipo: Working or Discussion Paper
Palavras-chave: Institutional and Behavioral Economics.
Ano: 1996
URL: http://purl.umn.edu/13471

Competitiveness in Australian Agriculture: A Review
Provedor de dados: 31
Autores: Hopkins,   S.; Lewis,   Philip E.T.
The concept of competitiveness develops and amplifies the older concept of comparative advantage. It is based on factors which influence domestic prices of inputs and outputs as compared with foreign competitor's prices of the same inputs and outputs. Usually national statistics of the ratio of domestic and foreign prices (adjusted by the exchange rate) are compared in the form of the real rate of exchange. The factors concerned are changes in internal and external inflation rates, changes in exchange rates, changes in productivity, changes in microeconomic efficiency, and changes in protection. In recent years the real rate of exchange for Australian agriculture has varied considerably as internal prices and costs have fluctuated about international...
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/12359

PRESERVING AGRICULTURAL LAND WITH FARMLAND ASSESSMENT: NEW JERSEY AS A CASE STUDY
Provedor de dados: 31
Autores: Parks,   Peter J.; Quimio,   Wilma Rose H.
A conceptual model links agricultural profits, capital gains, interest rates, and property taxes to the sale of agricultural land by profit-maximizing owners.  The model motivates an empirical analysis of New Jersey data from 1949 to 1990.  Results suggest that nonagricultural considerations may overpower the economic incentives provided by such policies as farmland assessment.  Consequently, alternative policies (e.g., purchase of development rights and land use zoning) may be needed to sustain agriculture in rapidly urbanizing areas.
Tipo: Journal Article
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/31644

MINUTES OF THE ANNUAL BUSINESS MEETING, NORTHEASTERN AGRICULTURAL AND RESOURCE ECONOMICS ASSOCIATION, HOLIDAY INN, ATLANTIC CITY, NJ, JUNE 24, 1996
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/31401

THE 1996 FARM BILL: IMPLICATIONS FOR RURAL COMMUNITIES
Provedor de dados: 31
Autores: Clouser,   Rodney L.; Edelman,   Mark A.; Hassebrook,   Chuck.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/17282

Economic Evaluation of Agricultural Research in Australia and New Zealand - A workshop held in conjunction with the 40th annual conference of the Australian Agricultural and Resource Economics Society 11-16 February 1996, Melbourne, Australia
Provedor de dados: 31
Tipo: Report
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/118036

Fostering Agricultural and Food System Transformation in Africa
Provedor de dados: 31
Autores: Staatz,   John M.; Ba,   Moussa Batchily.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy; Downloads July 2008 - June 2009: 8.
Ano: 1996
URL: http://purl.umn.edu/11387

SMALL FARMS AND SUSTAINABLE DEVELOPMENT: IS SMALL MORE SUSTAINABLE? DISCUSSION
Provedor de dados: 31
Autores: Henry,   Mark S.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/15245

Sampling Schemes for Policy Analysis Using Computer Simulation Experiments
Provedor de dados: 31
Autores: Carriquiry,   Alicia L.; Breidt,   F. Jay; Lakshminarayan,   P.G.
Evaluating the environmental and economic impacts of agricultural policies is not a simple task.  A systematic approach to policy analysis would include investigating the effect of factors such as tillage practices, crop rotations, type and amount of chemical used, weather, topography, and other soil attributes, on observables such as amount of soil eroded or chemical leached into the groundwater.  For comparison purposes, the effects of those factors on the response variable would have to be assessed under alternative policy scenarios.  Because the number of factor levels is alarmingly high in most problems, and because policies to be evaluated are often not in place at the time of the study, practitioners have resorted to simulation experiments to...
Tipo: Working or Discussion Paper
Palavras-chave: Computer experiment; Sampling; Policy analysis; Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/18350

Agribusiness: Political Economy and Market Structure - Toward a Structure for Agribusiness
Provedor de dados: 31
Autores: Johnson,   R.W.M.; Petrey,   L.A.; Schroder,   William R.
This issue of the Review contains three papers from the February conference on agribusiness structures and market behaviour. This introduction serves to introduce the papers and sets out a review of recent literature contributions in the marketing and agribusiness area. The review identifies the characteristic market structure of agribusiness as a transformation of farm-based commodities to many differentiated and finished products in consumer markets. This market channel or chain exhibits many of the features of competitive markets due to the many firms involved but also has features which cut across competitive theory such as monopoly buying, lack of full information, and backward integration. In the wider view, agricultural industries interact with...
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/12410

Relato do Sucesso da Segurança Alimentar em Mocambique
Provedor de dados: 31
Autores: SIMA,   Technical Team.
Resultados das investigações do Projecto de Segurança Alimentar em Moçambique MAP-Direcção de Economía-Dpto. Estatística
Tipo: Report
Palavras-chave: Food security; Food policy; Mozambique; Agricultural and Food Policy; International Development; Q18.
Ano: 1996
URL: http://purl.umn.edu/55196

DEVELOPING A DEMAND REVEALING MARKET CRITERION FOR CONTINGENT VALUATION VALIDITY TESTS
Provedor de dados: 31
Autores: Rondeau,   Daniel; Poe,   Gregory L.; Schulze,   William D.
Past research suggests that contingent valuation overstates demand for public goods. These estimates of hypothetical bias are probably invalid since they rely on voluntary contributions mechanisms which fail to reveal demand. An improved mechanism is shown to reveal aggregate demand in controlled experiments. However, individual contributions deviate from induced value.  Key Words: contingent valuation, voluntary contributions, provision point, experiments JEL Codes: H41, C92, Q20
Tipo: Working or Discussion Paper
Palavras-chave: Contingent valuation; Voluntary contributions; Provision point; Experiments; Research Methods/ Statistical Methods; H41; C92; Q20.
Ano: 1996
URL: http://purl.umn.edu/6856

SOME MAJOR TRENDS AFFECTING THE STRUCTURE OF AGRICULTURE IN MINNESOTA AND THE UNITED STATES; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Raup,   Philip M.
Two of the major trends shaping the evolution of agriculture in the United States are reduced diversification and increased risk in grain-crop production.  This paper will attempt to document these trends since 1950, with data for one state, Minnesota.  Since the state produces no cotton, rice, tobacco, or subtropical fruit and vegetable crops, there can be no pretension that it represents the full range of land use in U.S. agriculture.  Minnesota has been a significant producer of all of the principle grain crops, livestock products, sugar beets, and oil seeds, and it bridges the boundary between the dairy belt and the grain belt in the Mid-West.  With these limitations, Minnesota data provide revealing evidence of changes over the half-century since...
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management.
Ano: 1996
URL: http://purl.umn.edu/14385

COST SAVINGS FROM CONSOLIDATING NORTH DAKOTA'S COUNTIES
Provedor de dados: 31
Autores: Krause,   Mark A.
Consolidation of county government services is often proposed as a way to reduce costs.  A bill was proposed in the 1993 North Dakota Legislative Assembly to merge North Dakota's 53 counties into 15 "super counties."  This study estimates county expenditure functions for four categories of services: (1) general government, (2) public safety, (3) roads and highways, and (4) health and welfare. The statistical results were used to estimate expenditures for the 15 consolidated counties and a 26-county alternative.  The results indicate that the 15-county proposal would have achieved cost savings of 4.9 percent for the four service categories.  Costs of road and highway, general government, and health and welfare services could be reduced 3, 10, and 15...
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/23321

The Feasibility of Broiler Production in Iowa
Provedor de dados: 31
Autores: Hayes,   Dermot J.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18307

FOOD MARKETING IN AN ELECTRONIC AGE: IMPLICATIONS FOR AGRICULTURAL PRODUCERS; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Kinsey,   Jean D.; Senauer,   Benjamin.
Tipo: Working or Discussion Paper
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/14441

An Allais Measure of Production Sector Waste Due to Quotas
Provedor de dados: 31
Autores: Fulginiti,   Lilyan E.; Perrin,   Richard K.
This paper adapts a partial equilibrium approach of Allais and Diewert to measure the efficiency loss in the producing sector due to quotas.  The measure of waste is the additional profits available for reallocation subject to constraints that the welfare of persons and firms outside the sector is unaffected.  It is relevant to a sector which faces fixed prices for some commodities, but endogenous prices for others.  Tobacco quotas in the United State are estimated to have caused quota-induced producer-sector waste of approximately $95 million per year during 1950-82, or about 3 percent of the average value of the crop.
Tipo: Working or Discussion Paper
Palavras-chave: Waste; Deadweight loss; Production sector; Quotas; Production Economics.
Ano: 1996
URL: http://purl.umn.edu/18566

Poverty and Its Alleviation in Yunnan Province China: Sources, Policies and Solutions
Provedor de dados: 31
Autores: Zhuge,   Ren; Tisdell,   Clement A.
Tipo: Working or Discussion Paper
Palavras-chave: China; Pollution; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/53631

RISKS AND RETURNS IN THE TRANSITION FROM HIGH TO LOW CHEMICAL CROPPING SYSTEMS; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Olson,   Kent D.; Huggins,   David R.; Porter,   Paul M.; Perillo,   Catherine A.; Crookston,   R. Kent.
The objective of this paper is to improve our knowledge of how the traditional goals of income and risk reduction may affect farmers' choice of production methods especially those that are more environmentally sensitive.  The distribution of net cash flows for alternative crop production methods or strategies were estimated. These distributions were compared to predict whether the traditional goals of income level and risk avoidance will be at odds with environmental goals or whether farmers can find production strategies that support both types of goals.  Previous studies have used average yields and conditions to find that alternative tillage systems have lower costs that conventional systems (e.g., Smolik, Dobbs, and Rickerl; Weersink et al.)  Salin,...
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/14370

ENVIRONMENTAL REGULATORY REFORM: DISCUSSION
Provedor de dados: 31
Autores: Norris,   Patricia E.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/15239

Factors Influencing Soil Conservation Decisions in Developing Countries: A Case Study of Upland Farmers in the Philippines
Provedor de dados: 31
Autores: Sureshwaran,   Suresh; Londhe,   S.R.; Frazier,   P.
This study examines the factors that influence the adoption intensity of a soil conservation technology in a developing country. Factors that influence adoption intensity may not be the same as those that influence the incidence of adoption. In this study, adoption intensity is defined as the percentage of total upland acreage planted with Sloping Agricultural Land Technology by farmers in the Philippines. Because of the dependent variable’s truncated nature, a Tobit model is used in the analysis. Economic theory and previous research provide the basis for the soil conservation decision variables included in the study. Results suggest that age of the head of household, tenure status, availability of family labor, and government programs have significant...
Tipo: Journal Article
Palavras-chave: Soil conservation decisions; Intensity of adoption; Tobit models; Developing countries; Upland farmers; Agribusiness; Environmental Economics and Policy; Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/90379

Agricultural Business Management Curricula
Provedor de dados: 31
Autores: Larson,   Ronald B.
The required courses for agribusiness degrees at forty-three school were divided into six categories. Large ranges in the percentage of required credits by category were found. Comparisons with other curricula surveys showed that some changes occurred during the last ten to twelve years. Emphasis on business skills has increased while course work in technical agriculture has decreased. By considering customer needs and competitor innovations, departments can attempt to add more value to their educational products.
Tipo: Journal Article
Palavras-chave: Agricultural business management curricula; Degree requirements; Communication skills; Agribusiness; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/90647

Annotated Bibliography of Generic Commodity Promotion Research
Provedor de dados: 31
Autores: Ferrero,   Jennifer L.; Boon,   Leen; Kaiser,   Harry M.; Forker,   Olan D.
Tipo: Technical Report
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/122819

WHETHER AND HOW TO INVEST IN SITE-SPECIFIC CROP MANAGEMENT: RESULTS OF FOCUS GROUP INTERVIEWS IN MICHIGAN, 1996
Provedor de dados: 31
Autores: Swinton,   Scott M.; Harsh,   Stephen B.; Ahmad,   Mubariq.
How do farmers and agribusinesses decide whether to adopt site-specific crop management (SSCM)?  In spite of many agronomic experiments on variable rate fertilizer application, the broader adoption question has received little attention.  In order to discuss SSCM adoption issues, five focus group meetings were held with 22 Michigan farmers in early 1996 plus a sixth focus group meeting with 6 agribusiness representatives.  This report summarizes results, provides frequency counts of responses, and includes the questions that guided the focus group meetings.   The farmers interviewed were overwhelmingly concerned with profitability and risk of adopting SSCM.  Yield monitors were the most widely adopted SSCM technology; several farmers had hired grid soil...
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/11689

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes:  Cover Page, Officers and Directors 1996-1997, Title Page, Contents Pages
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/27788

FRONT COVER
Provedor de dados: 31
Front Cover and Contents Pages
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/22363

Assessing the Impact of Cowpea and Sorghum Research and Extension in Northern Cameroon
Provedor de dados: 31
Autores: Sterns,   James A.; Bernsten,   Richard H.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies; Teaching/Communication/Extension/Profession; Downloads July 2008 - July 2009: 7.
Ano: 1996
URL: http://purl.umn.edu/11415

DIMENSIONS AND DIVERSITY OF PROPERTY RIGHTS IN RURAL CHINA: DILEMMAS ON THE ROAD TO FURTHER REFORM
Provedor de dados: 31
Autores: Liu,   Shouying; Carter,   Michael R.; Yao,   Yang.
This paper contributes to the debate over land in rural China by conceptualizing and measuring multiple dimensions of property rights in a way which elucidates the competing interests which are affected by the property rights regime. Utilizing a unique village level data set on property rights, this paper argues that the regional and temporal variation in rural property rights signals a pattern in which decentralized institutional innovation occurs in response to the competing interests of the national state, of local authorities, and of present and possible future individual land users. Unlike the earlier debate concerning the household responsibility system, the current property rights dilemma is intrinsically more complex because the potential conflicts...
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/12681

ATTRIBUTES OF IDEAL SOIL SUBSTITUTES: RESULTS OF A SURVEY OF DEMAND SECTORS
Provedor de dados: 31
Autores: Lohr,   Luanne.
This paper describes preferences for attributes of ideal soil substitutes reported by industry demand segments, and relates those attributes to willingness to pay for soil substitutes.  Regression results on principal components indicate that concern over product stability, safety and environmental protection induce higher willingness to pay for ideal soil products.
Tipo: Working or Discussion Paper
Palavras-chave: Compost; Markets; Principal components; Product attributes; Demand and Price Analysis; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/16719

Economic Values of Freshwater in the United States
Provedor de dados: 31
Autores: Frederick,   Kenneth D.; VandenBerg,   Timothy P.; Hanson,   Jean.
This report presents nearly 500 water value estimates for four withdrawal uses (domestic, irrigation, industrial processing, and thermoelectric power generation) and four instream uses (hydropower, recreation/fish &amp; wildlife habitat, navigation, and waste disposal).  The first section discusses important caveats for interpreting the data and the relevance of water values for achieving efficient use of the resource.  The second section discusses the presentation of the data.  Tables and graphs are used to summarize and help interpret the water value data that have been converted to constant 1994 dollars.  Section 3 presents the data by geographic region to illustrate how the values within a region vary among uses.  Section 4 presents the data for...
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/10736

RISING FOOD PRICES AND FALLING GRAIN STOCKS: SHORT-RUN BLIPS OR NEW TRENDS?
Provedor de dados: 31
Autores: Pinstrup-Andersen,   Per; Garrett,   James L.
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/16368

Producer Subsidy Equivalents and Evaluation of Support to Russian Agricultural Producers
Provedor de dados: 31
Autores: Strokov,   Sergei; Meyers,   William H.
We critiqued the PSE method as it is traditionally applied. It can be concluded that it has severe limitations when it is applied to Russian agriculture during transition to a market economy. Many of the conditions and assumptions taken for granted in mature market economies cannot be assumed for transition economies, so the validity of PSE measures is questionable. The specific approaches are applied to calculate PSEs for Russian agriculture, emphasizing the unique structure of production and marketing channels. The appropriate interpretations of PSE estimations for major agricultural commodities are provided.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/18401

CHANGES IN THE FOOD DISTRIBUTION NETWORK IN TOKYO, JAPAN
Provedor de dados: 31
Autores: McBryde,   Gary L.
The Japanese food distribution network is more complex than other developed nations. This not only makes retail food prices more expensive but can make market entry for foreign companies difficult. In part demographic, cultural, economic, and institutional factors have led to the development of the existing system, and are playing a role in its change. U.S. businesses are not passive in the outcome of the future system. Japan relies heavily on food imports yet demands a high quality and stable source of supplies. Businesses that meet that demand will be an effective part of the future distribution system.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/27785

Research for the future development of aquaculture in Ghana.
Provedor de dados: 31
Tipo: Conference Paper or Presentation
Palavras-chave: Aquaculture development; Conferences; Agribusiness; Agricultural and Food Policy; International Development.
Ano: 1996
URL: http://purl.umn.edu/44839

CHANGING CANADIAN GRAINS POLICIES: IMPLICATIONS FOR MONTANA'S GRAIN INDUSTRY
Provedor de dados: 31
Autores: Young,   Linda M.
In Canada many changes have been made, and more are pending, to their grain transportation policies. This package of policy changes has two offsetting impacts on freight rates for Canadian grain producers. The removal of transportation subsidies on grain for export offshore has roughly doubled the cost of transporting grain for the Canadian producer. In addition, the change in pooling points will increase freight rates even more for producers in the eastern part of the prairies. Whether federally owned grain hopper cars are sold to the railways, or to an association of Canadian producers, the cost of the sale is likely to be born by producers through increased freight rates over a number of years. In addition, Canadian producers will bear the cost of...
Tipo: Working or Discussion Paper
Palavras-chave: Trade; Canada wheat; Montana wheat; Grain policies; Agricultural and Food Policy; F1.
Ano: 1996
URL: http://purl.umn.edu/29172

DAIRY '96, PART III: REFERENCE OF 1996 DAIRY HEALTH AND HEALTH MANAGEMENT
Provedor de dados: 31
Autores: Ott,   Stephen L.
The NAHMS Dairy '96 Study was designed to provide both participants and the industry with information on the nation's dairy animal population for education and research.  The USDA's National Agricultural Statistics Service (NASS) collaborated with NAHMS to select a statistically valid sample yielding 2,542 producers.  Included in the study were 20 states that represented 83.1 percent of the U.S. milk cows as of January 1, 1996.  Veterinary Medical Officers (VMO's) and Animal Health Technicians (AHT's) collected data for Part III from 1,219 operations that had 30 or more milk cows on January 1, 1996, from February 20 through May 24, 1996.   Contact for this paper: Steven Ott
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Health; Mastitis; Labor; Antibiotics; Biosecurity; Vaccination; Manure management; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/32752

Bacterial Foodborne Disease: Medical Costs and Productivity Losses
Provedor de dados: 31
Autores: Buzby,   Jean C.; Roberts,   Tanya; Lin,   Chung-Tung Jordan; MacDonald,   James M.
Microbial pathogens in food cause an estimated 6.5-33 million cases of human illness and up to 9,000 deaths in the United States each year. Over 40 different foodborne microbial pathogens, including fungi, viruses, parasites, and bacteria, are believed to cause human illnesses. For six bacterial pathogens, the costs of human illness are estimated to be $9.3-$12.9 billion annually. Of these costs, $2.9-$6.7 billion are attributed to foodborne bacteria. These estimates were developed to provide analytical support for USDA's Hazard Analysis and Critical Control Point (HACCP) systems rule for meat and poultry. (Note that the parasite Toxoplasma gondii is not included in this report.) To estimate medical costs and productivity losses, ERS uses four severity...
Tipo: Report
Palavras-chave: Cost-of-illness; Foodborne pathogens; Lost productivity; Medical costs; Food Consumption/Nutrition/Food Safety; Health Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/33991

Dynamic Gains and Losses from Trade Reform: An Intertemporal General Equilibrium Model of the United States and MERCOSUR
Provedor de dados: 31
Autores: Diao,   Xinshen; Somwaru,   Agapi.
An intertemporal general equilibrium model of the United States and MERCOSUR is created to analyze the dynamic adjustments in both regions' commodity and capital markets after trade liberalization. Simulation results show that tariff reductions initiated by MERCOSUR have small positive effects on the U.S. production, trade, consumption and investment, and stimulates MERCOSUR's growth, and improves its current account. If tariffs are eliminated by both regions, both regions are better off from points of intertemporal social welfare, international trade, domestic investment, and growth. Agriculture benefits more from trade reform, which implies that ruralagricultural sector might have been a victim of trade protection policies.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/7473

Okonomische Uberlegungen zum Begriff des Oko-Dumping
Provedor de dados: 31
Autores: Ranne,   Omar.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/18776

RESEARCH UPDATES
Provedor de dados: 31
Includes: The Effects of a Wholesale Fruit and Vegetable Auction on Produce Marketing and Distribution. Barbara James, Associate Professor; Thomas Blaine, Assistant Professor; and Randall James, Associate Professor: Ohio State University Extension.  The Feasibility of Establishing a Fresh Packing Facility for Selected Produce Items in Delaware. Richard J. Bacon, Associate Scientist; Ulrich C. Toensmeyer, Professor; and Carl L. German, Extension Specialist: Department of Food and Resource Economics, University of Delaware.  Patronage at a Farmer's Market: An Analysis of Knoxville Area Residents: Perceptions and Trips to the Outlet. David B. Eastwood, Professor; John R. Brooker, Professor; and Morgan D. Gray, Computer Analyst: Department of Agricultural...
Tipo: Journal Article
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/27791

Regionalism and the World Trade Organization: Is Non-Discrimination Passe?
Provedor de dados: 31
Autores: Srinivasan,   T.N.
The principle of non-discrimination as enunciated in its Articles I on General Most Favoured Nation Treatment (MFN) and III on National Treatment (NT) is the foundation of the General Agreement on Tariffs and Trade (GATT) and its successor, the World Trade Organization (WTO). Yet, articles of GATT included many exceptions to MFN, of which one of the most serious was Article XXIV relating to Customs Unions (CU) and Free Trade Areas (FTA). Clearly there was a tension, if not contradiction, between the fundamental principle of nondiscrimination and inherently discriminatory preferential trading arrangements (PTA’s) such as CU’s and FTA’s. This tension was not a serious practical one as long as a few PTA’s were proposed, let alone implemented, as was the case...
Tipo: Working or Discussion Paper
Palavras-chave: Most Favoured Nation (MFN); National Treatment (NT); Non-discrimination; General Agreement on Tariffs and Trade (GATT); World Trade Organization (WTO); Multilateralism; Regionalism; Open regionalism; Customs Unions (CU); Free Trade Areas (FTA); Preferential Trading Arrangements (PTA); International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/28462

BOOK REVIEWS
Provedor de dados: 31
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/22362

ANALYSIS OF RESULTS FROM THE IMPLEMENTATION OF REGULATION (EEC) 2078/92; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Ragazzoni,   Alessandro; Canavari,   Maurizio.
This paper is concerned with analyzing the CAP policies involving environmental issues and simulating probable results at a farm level of the adoption of agri-environmental measures.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/14399

PRICING AND USE OF DROUGHT-STRESSED AND IMMATURE CORN AS SILAGE FOR BEEF CATTLE
Provedor de dados: 31
Autores: Black,   J. Roy; Schwab,   Gerald; Rust,   Steven R.; Buskirk,   Dan.
No abstract available.
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/11754

Contents Pages
Provedor de dados: 31
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/12363

WELFARE EFFECTS OF FISHERY POLICIES: NATIVE AMERICAN TREATY RIGHTS AND RECREATIONAL SALMON FISHING
Provedor de dados: 31
Autores: Lin,   Pei-Chien; Adams,   Richard M.; Berrens,   Robert P.
Severe declines in Pacific Northwest salmon stocks, coupled with increasing recreational demands, and judicial decisions supporting Native American fishing rights create challenges for fishery agencies. This article explores the welfare effects on recreational anglers of alternative salmon allocation policies to meet Native American treaty rights. A discrete choice random utility model, coupled with a Poisson trip frequency model, is used to analyze these welfare effects. The model is fit to survey data from the Willamette River spring chinook fishery, an important recreational fishery in Oregon. Management options have dramatically different welfare effects.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/31024

Computing Average Per Acre Indemnity Payments for Corn in Iowa
Provedor de dados: 31
Autores: Hart,   Chad E.; Smith,   Darnell B.
This study estimates average per acre indemnity payments for Iowa corn for traditional multiple-peril crop insurance and two new revenue insurance products, Crop Revenue Coverage and Income Protection. Yield and price difference distributions are formed and employed in 1,000 simulation runs.  From these simulations, corn yields for all 99 Iowa countries and futures prices are collected.  These are used to calculate per acre indemnities under the three insurance products.  Income Protection has the smallest per acre indemnities across the state, followed by multiple-peril and Crop Revenue Coverage.  Per acre indemnities are the lowest in northwest Iowa and highest in southeast Iowa.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18326

Land Degradation in the Developing World: Implications for Food, Agriculture, and the Environment to 2020
Provedor de dados: 31
Autores: Scherr,   Sara J.; Yadav,   Satya N.
Among the most problematic issues considered as part of IFPRI’s 2020 Vision initiative, which seeks to develop an international consensus on how to meet future food needs while reducing poverty and protecting the environment, are the environmental questions. And the issues addressed in this discussion paper is particularly difficult. How is land degradation affecting the ability of farmers to produce adequate food supplies today, and what is the prognosis for the year 2020? As populations grow, farmers are forced to cultivate smaller and smaller plots, where the soil eventually becomes depleted, or they expand onto marginal lands-fragile hillsides, semi-arid areas, cleared forestland. Once these lands become damage, can they be repaired? These questions...
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/42280

Racial/Ethnic Minorities in Rural Areas: Progress and Stagnation, 1980-90
Provedor de dados: 31
Rural minorities lag behind rural Whites and urban minorities on many crucial economic and social measures. This report examines rural Black, Hispanic, Native American, and Asian and Pacific Islander populations and their economic well-being in the 1980’s, an economically difficult decade for rural areas. Results show minimal minority progress as measured by changes in occupation, income, and poverty rates. However, the type and speed of progress was quite different among minority groups and between men and women of the same minority group. Results showed considerable diversity among groups in the characteristics that were associated with poor economic outcomes.
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/34039

EXPORT BEHAVIOR OF LOUISIANA AGRIBUSINESS FIRMS
Provedor de dados: 31
Autores: Hughes,   Karol W.; Kennedy,   P. Lynn; Ortego,   Albert.
The United States is a party to several trading blocks, including the North American Free Trade Agreement, and is a signatory to the General Agreement on Tariffs and Trade.  The impact of the new trading environment on the agribusiness sector depends on the business activities of individual firms. A survey of agribusiness firms was undertaken to gather information on their exporting experience and plans.  The responses of exporters and non-exporters are presented. The likelihood of exporting increased with the size of a firm, both in terms of employee numbers an annual sales.  The survey showed that for the majority of firms, exports accounted for less than 10% of total sales and that only a small number of companies had used government programs intended...
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade; Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/31673

EVALUATING THE HEDGING POTENTIAL OF THE LEAN HOG FUTURES CONTRACT
Provedor de dados: 31
Autores: Ditsch,   Mark W.; Leuthold,   Raymond M.
The lean hog futures contract is replacing the live hog futures contract at the Chicago Mercantile Exchange beginning with the February 1997 contract. The lean hog futures will be cash settled based on a broad-based lean hog price index, eliminating terminal markets from the price discovery process. Using this index over a twenty-month period as a proxy for the lean hog futures price, this paper compares the hedging effectiveness of the live hog futures contract to the hedging potential of the lean hog futures contract for cash live hogs as well as four cash meat cuts. Frozen pork bellies futures are also examined for the cash meats. Both long-term and short-term hedges are simulated, using the minimum-variance approach, which utilizes only unconditional...
Tipo: Working or Discussion Paper
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/14769

SOCIO-ECONOMIC IMPACTS OF SCHOOL CONSOLIDATION ON HOST AND VACATED COMMUNITIES
Provedor de dados: 31
Autores: Sell,   Randall S.; Leistritz,   F. Larry; Thompson,   JoAnn M.
The number of public high school districts in North Dakota declined from 256 in 1970 to 186 in 1994. Thirty-one percent of the decline in number of districts occurred from 1990 to 1994.  Eight communities (four pairs) that had gone through a school district consolidation and school closure during the last five years were studied.  This paper presents the results of a mail survey of patrons who paid property taxes to the eight different school districts.  Host communities were defined as those gaining the majority of the students from the consolidation while vacated communities' schools were closed.  Community involvement, retail services, quality of life, and consolidation impacts for host and vacated communities were compared.
Tipo: Working or Discussion Paper
Palavras-chave: School consolidation; School closure; Retail impacts; Community involvement; Academic impacts; Quality of life; Host community; Vacated community; Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/23438

DISPUTES IN COMMON PROPERTY REGIMES
Provedor de dados: 31
Autores: Rose,   Laurel L.
Common property regimes (CPRs) have received considerable attention in the scholarly literature. Consensus seems to exist concerning the importance of effective conflict prevention and management to the success of CPRs generally. This paper is concerned with the impact of disputes upon CPR management. In view of gaps in the literature, this paper addresses in an exploratory manner the following three questions concerned with conflict in CPRs:  * What kinds of conflicts arise in association with what kinds of legal arrangements? In answering this question, attention will be paid to types of CPRs, institutional arrangements, and user groups, and so forth.  * How are such conflicts processed (that is, managed in the system)? For example, what are the...
Tipo: Working or Discussion Paper
Palavras-chave: Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/12763

The trade-wage debate in a model with nontraded goods : making room for labor economists in labor theory
Provedor de dados: 31
Autores: Robinson,   Sherman; Thierfelder,   Karen.
Cover title. "Revised March 1996"--Cover. Includes bibliographical references (p. 37-41).
Tipo: Working or Discussion Paper
Palavras-chave: International trade; Labor economics; Equilibrium (Economics) -- Models; Production economics; Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/97767

Integrated water resource systems:  Theory and policy implications
Provedor de dados: 31
Autores: Keller,   Andrew; Keller,   Jack; Seckler,   David.
Presents the concept of integrated water resources systems (IWS) as clearly and simply as possible, with a focus on the irrigation sector-the largest and most complex user of water.
Tipo: Report
Palavras-chave: Water resource management; Water policy; Irrigation efficiency; Water demand; Leaching; Water use efficiency; Water supply; Evapotranspiration; Models; Water conservation; Crop Production/Industries; Farm Management; Land Economics/Use; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/52730

FEDERAL DEVOLUTION: THE VIEW FROM THE STATES
Provedor de dados: 31
Autores: Stinson,   Thomas F.
Tipo: Conference Paper or Presentation
Palavras-chave: Public Economics.
Ano: 1996
URL: http://purl.umn.edu/17292

RURAL ECONOMIC DEVELOPMENT: NEW OPPORTUNITIES AND CHALLENGES FOR COMMERCIAL BANKERS
Provedor de dados: 31
Autores: Duncan,   Marvin R.; Fischer,   William R.; Taylor,   Richard D.
The report discusses commercial banks' role in supporting economic development in rural America.  It details demographic and economic trends in rural America.  It discusses a number of economic development programs available to commercial bankers and to private sector/public sector partnerships.  Finally, the report proposes a set of new tools for commercial bankers to further strengthen their participation in rural community economic development.   Note: Figures are not included in the machine readable copy--contact the authors for more information.
Tipo: Working or Discussion Paper
Palavras-chave: Demographic trends; Economic trends; Rural America; Role of commercial banks; Economic development programs; New tools for bankers; Community/Rural/Urban Development; Financial Economics.
Ano: 1996
URL: http://purl.umn.edu/23354

Rural/Urban Residence Location Choice
Provedor de dados: 31
Autores: Feridhanusetyawan,   Tubagus; Kilkenny,   Maureen.
Tipo: Thesis or Dissertation
Palavras-chave: Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/18406

BANCOSOL: EL RETO DEL CRECIMIENTO EN ORGANIZACIONES DE MICROFINANZAS
Provedor de dados: 31
Autores: Vega,   Claudio Gonzalez; Schreiner,   Mark; Meyer,   Richard L.; Meza,   Jorge Rodriguez; Navajas,   Sergio.
This paper focuses on the difficulties inherent in the prudent management of growth of microfinance organizations and on potential limits to the increased efficiency, profitability, and sustainability expected from growth and large size.  The paper addresses both positive and negative implications of rapid growth for microfinance organizations.  The experience of BancoSol in Bolivia is used to illustrate these questions.  Building upon the successful experience of PRODEM, BancoSol was chartered as a private commercial bank in 1992.  The paper discusses the intangible assets inherited from PRODEM that gave BancoSol a head start and the additional advantages that resulted from formalization as a bank, in particular from the authorization to mobilize...
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural Finance; Financial Economics.
Ano: 1996
URL: http://purl.umn.edu/28328

PLANETOR, AN ENVIRONMENTAL AND ECONOMIC PLANNING TOOL: ITS USE AND ADAPTATION FOR ITALY; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Giupponi,   Carlo; Klair,   Kevin S.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/14404

ESTIMATION OF IMPERFECT COMPETITION IN FOOD MARKETING: A DYNAMIC ANALYSIS OF THE GERMAN BANANA MARKET
Provedor de dados: 31
Autores: Deodhar,   Satish Y.; Sheldon,   Ian M.
Several studies have estimated the welfare effects of recent changes in the European Union's common policy on banana imports, based upon the assumption that the market is perfectly competitive. However, if the market is imperfectly competitive, predictions about changes in banana policy may be inaccurate. The objective of this paper is to estimate the degree of market imperfection in the German market for banana imports using dynamic methods. The hypothesis that this market is perfectly competitive is rejected, and, in addition, the degree of market imperfection is estimated to be higher using a dynamic model compared to previous static estimates.
Tipo: Journal Article
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/27899

Welfare Implications of the Allowable Cut Effect in the Context of Sustained Yield and Sustainable Development Forestry
Provedor de dados: 31
Autores: Luckert,   Martin K.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/24071

AN ECONOMIC ANALYSIS OF THE NORTH DAKOTA CATTLE INDUSTRY
Provedor de dados: 31
Autores: Koo,   Won W.; Duncan,   Marvin R.; Taylor,   Richard D.; Aakre,   Dwight G.; Swenson,   Andrew L.
The analysis was conducted to evaluate the impacts of both the Federal Agricultural Improvement and Reform Act of 1996 (FAIR) and the cattle cycle on the livestock enterprises.  The North Dakota Representative Farm and Ranch Model, which uses the Food and Agricultural Policy Research Institute price projections as an input, was developed and used for this analysis.  Net farm income and farm debt-to-asset ratios for the average and large beef cattle farms were analyzed. The U.S. cattle industry has been characterized by cyclical variations in production and prices.  It appears that the current cattle cycle is in the final stages of expansion.  Cattle numbers continued to increase during 1995, but at a slow rate. Industry estimates are that the bottom of...
Tipo: Working or Discussion Paper
Palavras-chave: Livestock; Representative farms; Cattle cycle; Production Economics.
Ano: 1996
URL: http://purl.umn.edu/23339

U.S. GOVERNMENT INTERVENTION IN DAIRY MARKETS: HAS THE 1996 AGRICULTURAL ACT REFORMED THE GOVERNMENT'S ROLE?; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Hammond,   Jerome W.
The objectives of this paper are to describe basic characteristics of U.S. dairy price programs prior to 1996, and to provide an assessment of how the changes in the Federal Agricultural Improvements and Reform Act (FAIR) of 1996 will change our government's involvement in the sector.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/14429

RESERVATION PRICE ANNOUNCEMENT IN SEALED BID AUCTIONS: COMMENT
Provedor de dados: 31
Autores: Schroeter,   John R.
This comment corrects some errors of analysis contained in a 1993 paper by Carey in the Journal of Industrial Economics.
Tipo: Working or Discussion Paper
Palavras-chave: Auction; Reservation price; Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/18261

Privatizing a State Farm in Kazakhstan
Provedor de dados: 31
Autores: Garcia,   Roberto J.; Silvis,   Anne Heinze.
This dissolution of the Soviet Union served the state-directed linkages between state-owned farms and agribusiness enterprises ordered by the command economic system. Likewise, the dissolution disrupted marketing channels connecting the agricultural sector to a market economy those of other former republics. The transition to a market economy requires a transformation in the political and economic structures of state-owned farms and state-owned agribusiness enterprises. Directors of state-owned farms in Kazakhstan face major challenges. The primary consideration is how the farm should be organized after privatization, that is, whether the farm should be transformed into a cooperative, a joint stockholding company, or divided into several private,...
Tipo: Journal Article
Palavras-chave: Kazakhstan; Former Soviet Union; Agricultural sector; Privatization; Market economy; Agribusiness; Community/Rural/Urban Development; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/90377

COVER and CONTENTS PAGES
Provedor de dados: 31
Includes:  Cover, title page, and contents page
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/31415

DAIRY '96, PART II: CHANGES IN THE U.S. DAIRY INDUSTRY: 1991-1996
Provedor de dados: 31
Autores: Ott,   Stephen L.
The NAHMS Dairy '96 Study was designed to provide both participants and the industry with information on the nation's dairy animal population for education and research.  This report contains demographic changes of the U.S. and world dairy industry from a historical perspective from data provided by the National Agricultural Statistics Service (NASS), Census of Agriculture, and Foreign Agriculture Service.  Results of two NAHMS national studies overview changes in the U.S. dairy industry in the 5-year period of 1991 to 1996.  The 1991 National Dairy Heifer Evaluation Project included herds of 30 or more milk cows and heifer-rearing operations in 28 states representing 83 percent of U.S. milk cows.  NAHMS Dairy '96 described dairy production for operations...
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Demographics; Breed; Rolling herd average; Milk; Feed; Weaning; Vaccination; Morbidity; Mortality; Housing; Biosecurity; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/32741

ACREAGE RESPONSES TO EXPECTED REVENUES AND PRICE RISK FOR MINOR OILSEEDS AND PROGRAM CROPS IN THE NORTHERN PLAINS
Provedor de dados: 31
Autores: Krause,   Mark A.; Koo,   Won W.
Wheat, barely, flaxseed, and oilseed sunflower acreage respond to different economic variables. Wheat and barely acreage must be divided among program-complying, program-planted, and nonprogram-planted acreage because these categories respond to different variables and respond to own expected-revenue and price-risk variables in opposite ways. Flaxseed, sunflower, and nonprogram-planted acreage of wheat and barley have highly significant, positive responses to their own expected revenue and negative responses to their own-price risk. Flaxseed and sunflower acreage have been more responsive to their lagged values than to expected revenues for wheat.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/31028

Economic Issues in Management of Herbicide-Resistant Weeds
Provedor de dados: 31
Autores: Schmidt,   Carmel P; Pannell,   David J.
Herbicide-resistant annual ryegrass (Lolium rigidum) is having a dramatic impact on the management and profitability of continuous cropping systems of southern Australia. In many cases ryegrass populations have exhibited cross resistance. where development of resistance through repeated use of one herbicide also bestows resistance to other groups of herbicides not previously used. Hence use of the major groups of selective herbicides as the predominant means of weed control is often ruled out. In this paper we discuss the development of herbicide resistance in Lolium rigidum, its costs and implications for farm management. Where high levels of resistance have developed, weed control strategies that include a range of control methods (such as increased crop...
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/12368

How Would Changes to the Earned Income Tax Credit Affect Rural Recipients?
Provedor de dados: 31
Autores: Durst,   Ron L.
The earned income tax credit (EITC) has become a major source of income support for low-income rural workers and their families, especially in the South, where the rural poor are concentrated. Program benefits for rural areas are expected to total about $6 billion in 1996, nearly double the 1992 amount, providing benefits to an estimated 4.5 million low-income rural workers and their families. Increasing concerns about escalating costs and the targeting of benefits may result in changes to the EITC program that would reduce both benefit levels and the number of eligible low-income rural workers. Proposed changes to improve the targeting of benefits would exclude many farmers from the program.
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Public Economics.
Ano: 1996
URL: http://purl.umn.edu/33743

Competitiveness of Regional Sugar Production Under Alternative Production Conditions and Policies
Provedor de dados: 31
Autores: Koo,   Won W.; Taylor,   Richard D.
Tipo: Technical Report
Palavras-chave: Agricultural and Food Policy; Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/120989

The Impacts of the Budget Reconciliation Proposal on North Dakota Small, Medium, and Large Farms
Provedor de dados: 31
Autores: Koo,   Won W.; Duncan,   Marvin R.; Taylor,   Richard D.; Aakre,   Dwight G.
Tipo: Technical Report
Palavras-chave: Agricultural Finance; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/120982

USING CUSTOMER SURVEYS TO PROMOTE FARMERS' MARKETS: A CASE STUDY
Provedor de dados: 31
Autores: Eastwood,   David B.
Changing food consumption patterns indicate that food retailers need to be responsive to patrons. Consumer surveys can be used to identify changes that should be made in the management of a facility and to identify relevant promotional messages for food shoppers. A survey of shoppers at a farmers' market is used to estimate a Poisson regression of the number of trips. Results provide a basis for the outlet becoming more responsive to consumer information needs.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/27898

WHAT WE LEARNED
Provedor de dados: 31
Autores: Knutson,   Ronald D.; Pursaga,   A.J.W.; Loyns,   R.M.A.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16958

COMPLIANCE BIAS IN DICHOTOMOUS CHOICE CVM:  SOME EVIDENCE FROM A UTAH WILDERNESS STUDY
Provedor de dados: 31
Autores: Keith,   John E.; Fawson,   Christopher B.
Responses to a dichotomous choice contingent valuation (DCCV) of wilderness designation in Utah were used to determine if individuals who identified themselves as having no opinion or being neutral to wilderness designation in general and for two specific wilderness proposals would have nonnegative willingness to pay for such designation. In cases for which a sufficient number of observations permitted estimation, the estimated willingness to pay was positive and significantly different from zero and often exceeded that of individuals who identified themselves as supporting wilderness designation. This appears to support the contention that DCCV studies may generate values from respondents whether or not those respondents truly have positive willingness to...
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/28359

Economic Prospects for Freshwater Crayfish (Yabby) in Western Australia
Provedor de dados: 31
Autores: Tull,   Malcolm.
Since the 1980s Western Australia has developed a significant commercial aquaculture industry, catering both to domestic and overseas markets. However, the limited scale of output, especially in the yabby industry, has been a major constraint on further expansion of sales. Currently, the industry is based on the cultivation of freshwater crayfish (yabby) in existing farm dams. There are about 100,000 farm dams in Western Australia but only about 6,000 are currently used for commercial yabby production. Thus one way to boost output is simply to persuade more farmers to utilise them for commercial yabby production. However, farm dams produce low yields and it is also necessary to investigate the potential for more intensive farming with purpose built dams....
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/12365

END MATERIALS
Provedor de dados: 31
Includes: Invited Papers Abstracts; JARE Editor's Report for 1995-96; Reviewers, July 1995-June 1996; WAEA 1995 Award Winners; Past Presidents, Western Agricultural Economics Association, 1927-94; Past Editors; Guidelines for Submitting Manuscripts to JARE; Membership Information; Back Cover
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/31018

A CANADIAN POLICY ANALYST'S PERSPECTIVE
Provedor de dados: 31
Autores: Price,   Richard Tudor.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/16966

TRADE ANALYSIS OF RETAIL AND SERVICE INDUSTRIES IN NORTH DAKOTA FOR PLANNING LOCAL ECONOMIC DEVELOPMENT
Provedor de dados: 31
Autores: Bhuyan,   Sanjib.
Trade analysis of retail and service sectors allows economic development practioners to evaluate the performance of these sectors in their respective communities.  Estimation of market potential identifies specific business categories (e.g., computer stores) that have potential for further growth.  Trade analysis of retail and service sectors in North Dakota shows that except in a few urban counties, such as Cass, Grand Forks, or Burleigh, these sectors were inefficient in retaining and attracting customer dollars.  Market potential estimation of over 130 specific business categories showed that a considerable number of business categories have potential for further growth, e.g., computer and software stores, used merchandise stores, and heavy construction...
Tipo: Working or Discussion Paper
Palavras-chave: Trade analysis; Market potential; Economic development; Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/23332

Encourager la transformation de l'agriculture et des systèmes alimentaires en Afrique
Provedor de dados: 31
Autores: Staatz,   John M.; Ba,   Moussa Batchily.
Tipo: Working or Discussion Paper
Palavras-chave: International Development; Downloads July 2008 - June 2009: 7.
Ano: 1996
URL: http://purl.umn.edu/11300

Waterfowl Populations and the Conservation Reserve Program in the Prairie Pothole Region of North and South Dakota
Provedor de dados: 31
Autores: Hurley,   Terrance M.; Babcock,   Bruce A.; Reynolds,   Ronald E.; Loesch,   Charles R.
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/18534

ECONOMIC ISSUES IN ECOSYSTEM MANAGEMENT: AN INTRODUCTION AND OVERVIEW
Provedor de dados: 31
Autores: Swallow,   Stephen K.
Ecosystem management may extend multiple use management, where economists identify and value a complex mix of ecosystem outputs.  The dominant theme in conservation biology favors "safe minimum standards" (SMS) constraints on ecosystem attributes, which respond to complex and purely uncertain ecological knowledge and lead economists toward valuation questions that identify "tolerable" constraints.  A hierarchical SMS constraint raises substitution possibilities among ecosystem-level components.  Economists may identify unavoidable resource tradeoffs, such as in allocating land among elements of a reserve network, particularly when ecological wealth differs among geographically dispersed human communities.  Economic and ecological ironies obfuscate...
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/31418

EFFICIENCY TESTS OF JULY KANSAS CITY WHEAT FUTURES
Provedor de dados: 31
Autores: Kastens,   Terry L.; Schroeder,   Ted C.
Three procedures are used to test Fama semistrong from efficiency of harvesttime price of Kansas City July wheat futures from 1947 through 1995. The three methods are (a) testing for jointly significant parameter estimates on nonfutures explanatory variables in econometric forecasting models, (b) testing the relative accuracy between model-based forecasts and using deferred futures prices as forecasts, and (c) testing for abnormal profits associated with simulated futures trading signaled by the forecasts. Kansas City July wheat futures are generally efficient. Furthermore, relative to the efficiency associated with forecasts constructed one to two months before harvest, the efficiency associated with the five- to six-month period before harvest has...
Tipo: Journal Article
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/31035

Are Revolving Loan Funds A Better Way To Finance Rural Development?
Provedor de dados: 31
Autores: Mikesell,   James J.; Wallace,   George B.
Revolving loan funds (RLF's) operate, in principle, by issuing new loans as old loans are repaid. Although best suited to increasing credit access for viable firms that lack alternative funding sources, many RLF's are assisting local businesses in need of capital but financially nonviable. Two major problems arise when RLF's are used to transfer this kind of public subsidy to failing businesses: (1) RLF's require periodic refunding to avoid continued erosion of their capital base and (2) in lending money to high-risk borrowers, RLF's experience high loss rates.
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Financial Economics.
Ano: 1996
URL: http://purl.umn.edu/33713

ECONOMIC PROFILE OF BILLINGS COUNTY
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leistritz,   F. Larry.
Policies affecting the use of public lands can have direct consequences for industries that rely on outputs from those lands. In recent years, environmental concerns have prompted a revisiting of the policies governing the use of those lands.  Subsequently, alternative policies have been proposed that would move the management of some public lands away from the concepts of "multiple use" to those of limited access or wilderness designations, ultimately eliminating many consumptive uses on those lands.  Thus, for industries and regional economies relying on public resources, it is necessary to (1) draw attention to the economic importance of those lands, (2) identify the potential consequences of changes in their management and use, and (3) develop plans...
Tipo: Working or Discussion Paper
Palavras-chave: Public land use; Economic base analysis; Basic sector industries; North Dakota.; Community/Rural/Urban Development; Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/23180

Supplier Relations and the Market Context: A Theory of Handshakes
Provedor de dados: 31
Autores: McLaren,   John.
This paper provides an economic theory of the degree of formality in industrial procurement. The argument is based on a tension between two procurement goals: imposing cost discipline on the supplier, and creating the conditions for cooperative innovation. In this model, a contract can solve the cost discipline problem, but only by discouraging cooperation; a less formal arrangement provides cooperation but poor discipline. The attractiveness of contracts is smaller, the less vertically integrated the industry, because a thick market for inputs provides its own discipline incentives even without a contract. Thus, in highly integrated industries, contracts are used, while in less integrated industries business is done on handshakes. This theory of the role...
Tipo: Working or Discussion Paper
Palavras-chave: Japan-US comparisons; Subcontracting; Cooperative innovation; Industrial Organization; L14; L22.
Ano: 1996
URL: http://purl.umn.edu/28407

A Stated Preference Analysis of International Commodity Marketing: South Korean Hotel Meat Buyers' Perceptions of Canadian Beef, US Beef and Australian Beef
Provedor de dados: 31
Autores: Unterschultz,   James R.; Quagrainie,   Kwamena K.; Veeman,   Michele M.; Kim,   Renee B.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/24081

VALUING RISK-REDUCING INTERVENTIONS WITH HEDONIC MODELS: THE CASE OF EROSION PROTECTION
Provedor de dados: 31
Autores: Dorfman,   Jeffrey H.; Keeler,   Andrew G.; Kriesel,   Warren.
This article extends the literature on economic valuation of public interventions that reduce environmental risk. We consider the case where risk-reducing interventions have different characteristics than the risk proxies used in hedonic regressions. We then demonstrate the importance of these considerations by reexamining an existing analysis of shoreline protection where we estimate risk using a latent variables model. The results show substantially different and arguably more plausible results.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/31001

CROP YIELD AND PRICE DISTRIBUTIONAL EFFECTS ON REVENUE HEDGING
Provedor de dados: 31
Autores: Tirupattur,   Viswanath; Hauser,   Robert J.; Chaherli,   Nabil M.
The use of crop yield futures contracts is examined. The expectation being modeled here reflects that of an Illinois corn and soybeans producer at planting, of revenue realized at harvest. The effects of using price and crop yield contracts are measured by comparing the results of the expected distribution to the expected distribution found under five general alternatives: 1) a revenue hedge using just price futures, 2) a revenue hedge using crop yield futures, 3) an unhedged scenario where revenue is determined by realized prices and yields, 4) an unhedged scenario where revenue is determined by realized prices and yields and by participation in government support programs with deficiency payments, and 5) a no hedge scenario where revenue is determined by...
Tipo: Working or Discussion Paper
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/14766

Production Flexibility Contract Payments: Fiscal Year 1996
Provedor de dados: 31
Autores: Smith,   Darnell B.; Elmore,   Steven L.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/18299

Elementos para una reforma del sector público en el contexto de una economía de mercado
Provedor de dados: 31
Autores: Herzka,   Claudio.
En este trabajo se propone un conjunto de elementos básicos que deben ser considerados para el diseño de cualquier estrategia de reforma del sector público en el Perú, abordando cuestiones de carácter económico, social, político y de organización institucional.
Tipo: Working or Discussion Paper
Palavras-chave: Sector publico; Ajuste estructural; Economia de mercado; Public sector; Structural Adjustment; Market economy; Peru; D4.
Ano: 1996
URL: http://purl.umn.edu/37988

NONMARKET VALUATION UNDER PREFERENCE UNCERTAINTY: ECONOMETRIC MODELS AND ESTIMATION
Provedor de dados: 31
Autores: Hanemann,   W. Michael; Kristrom,   Bengt; Li,   Chuan-Zhong.
This paper makes an attempt to introduce preference uncertainty into discrete choice models used in contingent valuation experiments. We develop an econometric model which may characterize the degree of the uncertainty and provide an empirical illustration of the suggested model.
Tipo: Working or Discussion Paper
Palavras-chave: Research Methods/ Statistical Methods; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/6858

MONTE CARLO EVIDENCE ON COINTEGRATION AND CAUSATION
Provedor de dados: 31
Autores: Zapata,   Hector O.; Rambaldi,   Alicia N.
The small sample performance of Granger causality tests under different model dimensions, degree of cointegration, direction of causality, and system stability are presented.  Two tests based on maximum likelihood estimation of error-correction models (LR and WALD) are compared to a Wald test based on multivariate least squares estimation of a modified VAR (MWALD).  In large samples all test statistics perform well in terms of size and power.  For smaller samples, the LR and WALD tests perform better than the MWALD test. Overall, the LR test outperforms the other two in terms of size and power in small samples.
Tipo: Working or Discussion Paper
Palavras-chave: Causality tests; Cointegration; Likelihood ratio; Wald statistic; Monte Carlo Experiments; Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/31690

EVALUATING THE IMPACTS OF AGRICULTURAL EXPORTS ON A REGIONAL ECONOMY
Provedor de dados: 31
Autores: Bairak,   Roman I.; Hughes,   David W.
Agricultural exports are important to many regional economies, as is the case for agricultural exports wither produced in or shipped through Louisiana. A hybrid (revised and verified) IMPLAN model of the Louisiana economy is used to estimate the direct and indirect impact of agricultural exports. Original model estimates of foreign exports lacked holistic (overall) accuracy. However, other, more general uses of the model were unaffected by this lack of accuracy. While the contributions of agricultural exports to the state economy were substantial, impacts were concentrated in unprocessed products. Increasing the export of processed agricultural products should enhance economic activity.
Tipo: Journal Article
Palavras-chave: Agricultural exports; Holistic accuracy; IMPLAN; Input-output models; Processed exports; Community/Rural/Urban Development; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/15116

ENDOGENOUS RURAL DEVELOPMENT AND SUSTAINABILITY: A EUROPEAN (NON ORTHODOX) PERSPECTIVE; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Romano,   Donato.
"The implementation of the new Common Agricultural Policy (CAP) has brought far-reaching consequences for rural development: the farmer, liberating himself from his one and only role of producer, can profit from the opportunities and synergies offered by other activities that are complementary and alternative to agriculture. Thus the farmer has an essential role in the valorization of endogenous resources of the area where he carries his activities on. Since 1975, the European Community has financed programmes which have increasingly taken into account the rural development dimension in research activities linked to agriculture (for example the AGRIMED and the CAMAR research programmes).  Central to such researches is the notion of endogenous development....
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/14396

The Industrial Organisation of the Australian Agricultural Economics Society
Provedor de dados: 31
Autores: Ahmadi-Esfahani,   Fredoun Z.; Brakey,   John.
There has recently been much soul searching among US agricultural economists concerning future directions of the American Agricultural Economics Association. In Australia, however, little direct attention has been paid to the Australian Agricultural Economics Society. Utilising an industrial organisation framework, this paper seeks to investigate issues pertaining to the structure, conduct and performance of the Society. To that end, a survey of members was recently undertaken. This information, along with the views of Past Presidents of the Society, minutes of previous Annual General Meetings and student feedback on the future direction of the profession, is used as the main database for the analysis. The results suggest that, while demand for the product...
Tipo: Journal Article
Palavras-chave: Industrial Organization; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/12412

AN ECONOMIC ANALYSIS OF INTERNATIONAL FEED AND MALTING BARLEY MARKETS: AN ECONOMETRIC SPATIAL OLIGOPOLISTIC APPROACH
Provedor de dados: 31
Autores: Schmitz,   Troy G.; Koo,   Won W.
A "hybrid" spatial price equilibrium model is developed to evaluate changes in production, consumption, and trade of feed and malting barley under alternative domestic and agricultural trade policy regimes. The analysis includes the economic welfare impacts of changes in various farm subsidy programs on the United States, Canada, Australia, and European Union (EU-15) which are the four major barley exporting countries in the world. The actions of competitive U.S. grain traders under the Export Enhancement Program cause feed barley exports to be segmented into two distinct markets. A spatial equilibrium is established in which the Canadian Wheat Board and Australian marketing boards behave as oligopolists in export markets under arbitrage conditions induced...
Tipo: Working or Discussion Paper
Palavras-chave: Malting; Feed; Farm Subsidy; Trade Policy; Export Market; Welfare; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/23286

INCORPORATING THE 1990 FARM BILL INTO FARM-LEVEL DECISION MODELS: AN APPLICATION TO COTTON FARMS: COMMENT
Provedor de dados: 31
Autores: Onal,   Hayri; Monke,   James D.
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/15252

Tendências dos Preços Reais do Grão de Milho Branco no Sul de Moçambique
Provedor de dados: 31
Autores: SIMA,   Technical Team.
Resultados das investigações do Projecto de Segurança Alimentar em Moçambique MAP-Direcção de Economía-Dpto. Estatística
Tipo: Report
Palavras-chave: Food security; Food policy; Mozambique; Crop Production/Industries; Q18.
Ano: 1996
URL: http://purl.umn.edu/55197

COMPETITIVENESS OF THE UNITED STATES AND THE ASEAN IN THE INTERNATIONAL AGRICULTURAL MARKET
Provedor de dados: 31
Autores: Salvacruz,   Joseph C.
Three alternative measures were used to determine the competitiveness of the U.S. and the members of the Association of Southeast Asian Nations (ASEAN) in the international agricultural market. Evidence suggests that while the competitiveness of the U.S. has become fairly stable across time, the ASEAN countries have exhibited fluctuating trends, with pronounced increasing trends during the past five years. The impact of technological progress on international agricultural competitiveness was also analyzed. Competitiveness was found to be influenced by interest rates, labor availability, and endogenous technology driven by foreign aid, direct foreign investments, and farm size. These findings provide policymakers and agribusiness managers with relevant...
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/27784

AN EVOLUTIONARY TRADE NETWORK GAME WITH PREFERENTIAL PARTNER SELECTION
Provedor de dados: 31
Autores: Tesfatsion,   Leigh.
An evolutionary trade network game (TNG) is proposed for studying the interplay between evolutionary game dynamics and preferential partner selection in various market contexts with distributed adaptive agents. The modular form of the TNG facilitates experimentation with alternative specifications for trade partner matching, trading, expectation up dating, and trade strategy evolution. Experimental results obtained using a C++ implementation suggest that the conventional optimality properties used to evaluate agent matching mechanisms in static market contexts maybe inadequate measures of optimality from an evolutionary perspective.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/18188

INCREASES IN DEMAND FOR FOOD IN CHINA AND IMPLICATIONS FOR WORLD AGRICULTURAL TRADE
Provedor de dados: 31
Autores: Koo,   Won W.; Lou,   Jianqiang; Johnson,   Roger G.
China is experiencing rapid economic growth, resulting in increased demand for food. Estimates are made of Chinese production and consumption of rice, wheat, corn, and soybeans to the year 2005. Results indicate that China will become a large net importer especially of wheat, corn, and soybeans. China's grain shipping and handling industries will need to be expanded to handle the increased imports.   Note: Figures are not included in the machine readable copy--contact the authors for more information.
Tipo: Working or Discussion Paper
Palavras-chave: Trade; Food Consumption; Grain Production; Rice; Wheat; Corn; Soybeans; China; Agriculture; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/23418

COMPETITIVE ANALYSIS OF U.S. FOOD PROCESSING PLANTS
Provedor de dados: 31
Autores: Jayanthi,   Shekhar; Kocha,   Bart; Sinha,   Kingshuk K.
This paper presents a model-based approach for competitive analysis of manufacturing plants in the U. S. food processing industry. As part of this approach, plant competitiveness is measured using Operational Competitiveness Ratings Analysis (OCRA) -- a new non-parametric method of computing relative inefficiency. Drivers of competitiveness are identified in terms of policies related to plant structure and infrastructure. Policies related to plant structure are those decisions that are related with   "bricks and mortar" and have long term implications, such as decisions related to plant size and capacity. Policies related to plant infrastructure are decisions related to how the   " bricks and  mortar" are used. These policies are typically under the direct...
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/14333

Temporal and Spatial Evaluation of Soil Conservation Policies
Provedor de dados: 31
Autores: Lakshminarayan,   P.G.; Babcock,   Bruce A.
This paper presents estimates of the benefits and costs of alternative soil conservation policies in a spatially and temporally consistent framework. The policies considered are implementation of soil conservation practices with an objective of reducing erosion to a site's tolerance level and a policy with an objective of a voluntary 50% reduction in conventional tillage. Costs and erosion benefits of these two policies are compared with that obtained from CRP. The changes in erosion and cost are estimated relative to 1992 levels. The analysis is conducted on every NRI point in a 12-state region in the north central United States. Erosion metamodels estimated using site-specific resource, production, topography, and weather data make such an endeavor...
Tipo: Working or Discussion Paper
Palavras-chave: Conservation compliance; Conservation tillage; CRP; Metamodels; Sediment damage; Soil erosion; Soil loss tolerance; Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/18477

Cleaning Up the Nuclear Weapons Complex: Exploring New Approaches
Provedor de dados: 31
Autores: Probst,   Katherine N.; Pilling,   Carolyn A.; Dunn,   Karen T.
In recent years, policy experts have increasingly decried the "piecemeal" approach to environmental protection embodied in existing laws and regulations. This paper analyzes one aspect of the call for more integration: the feasibility and advisability of developing an integrated approach to regulating the cleanup of the nation's nuclear weapons complex. The Cold War has left an unprecedented set of difficulties at sites across the country where vast quantities of hazardous and radioactive materials must be properly managed. Regulatory fragmentation--particularly the phenomenon of multiple regulators and regulations driving the allocation of resources in an uncoordinated fashion--is nowhere more evident than in the current statutory and regulatory framework...
Tipo: Working or Discussion Paper
Palavras-chave: Nuclear weapons complex; Integration; Environmental law; Environmental regulation; Environmental Economics and Policy; H56; K32; Q28.
Ano: 1996
URL: http://purl.umn.edu/10765

WORLD MALT AND MALTING BARLEY: COMPETITION, MARKETING, AND TRADE
Provedor de dados: 31
Autores: Satyanarayana,   Vidyashankara; Wilson,   William W.; Johnson,   D. Demcey; Dooley,   Frank J.
Recent trends in production marketing, trade, and policies affecting world malting barley and malt sector are examined.  A spatial equilibrium model of production and trade is used to assess the effects of alternative levels of supply, demand, and policy variables on composition and direction of malting barley and malt trade flows.
Tipo: Working or Discussion Paper
Palavras-chave: Malting barley; Malt; Beer; Trade; Spatial equilibrium; Marketing; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/23444

UNDERSTANDING CANADIAN/UNITED STATES DAIRY DISPUTES
Provedor de dados: 31
Autores: Knutson,   Ronald D.; Loyns,   R.M.A.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16963

Determinants of Farm Productivity in Africa: A Synthesis of Four Case Studies
Provedor de dados: 31
Autores: Reardon,   Thomas; Kelly,   Valerie A.; Crawford,   Eric W.; Jayne,   Thomas S.; Savadogo,   Kimseyinga; Clay,   Daniel C.
Tipo: Working or Discussion Paper
Palavras-chave: Productivity Analysis; Downloads July 2008 - July 2009: 20.
Ano: 1996
URL: http://purl.umn.edu/11279

WHOLESALER MARKUP DECISIONS UNDER DEMAND UNCERTAINTY
Provedor de dados: 31
Autores: Park,   Timothy A.; Lohr,   Luanne.
We examine consistency with economic theory of markup decisions for a risk averse firm facing demand uncertainty.  We derive testable comparative static results that describe the influence on the markup of expected demand, demand uncertainty, average variable costs and exogenous demand shifters.  We test the model using data from the wholesale market for organic lettuce. Our results demonstrated that risk averse  wholesalers raise markups as expected demand increases and reduce them as uncertainty increases.
Tipo: Working or Discussion Paper
Palavras-chave: Risk aversion; Marketing margins; Comparative statics; Organics; Demand and Price Analysis; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/16699

PROSPECTS FOR THE CANADIAN DAIRY SECTOR FOLLOWING THE UPCOMING NAFTA PANEL RULING
Provedor de dados: 31
Autores: Barichello,   Richard R.; Romain,   Robert F.J.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16953

DETERMINANTS OF CONSUMERS' USE OF NUTRITIONAL INFORMATION ON FOOD PACKAGES
Provedor de dados: 31
Autores: Nayga,   Rodolfo M., Jr.
This study examines how sociodemographic characteristics of a household's main meal planner affect use of nutritional information concerning ingredients, health benefits, calories, sodium, vitamins/minerals, fiber, fat, cholesterol, and sugar content on food packages. Results generally suggest that well-educated, female main meal planners are more likely to use various types of nutritional information than others. Main meal planners who place more importance on nutrition but less importance on taste and those who have a higher perception of the healthfulness of their diet are more likely to use nutritional information on packages than others. Household size, race, employment status, urbanization, region, age, and income are also significant factors.
Tipo: Journal Article
Palavras-chave: Food packages; Food shopping; Labels; Nutritional information; Sociodemographics; Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/15122

Risk Premia in Tractor and Combine Investments
Provedor de dados: 31
Autores: Mumey,   Glen; Unterschultz,   James R.
A farmer planning to use Net Present Value (NPV) analysis on machinery requires estimates of operating benefits over time, an estimate of terminal or salvage values and a risk-adjusted discount rate. Using financial market information and related Root Mean Square Errors on machinery value forecasts, risk premia for combine and tractor investments are estimated for non-diversified investors. These risk premia can be added to the risk free rate in comparable maturity long term bonds to derive an appropriate discount rate for NPV analysis. Where machines are held as single-asset portfolios, risk premia identified for discounting terminal value vary between 5.5% and 8.3% for combines and between 2.4% and 3.6% for tractors, depending on age during the holding...
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/24123

Good Governance in Sustainable Development: the Impact of Institutions
Provedor de dados: 31
Autores: Roy,   Kartik C.; Tisdell,   Clement A.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/53595

DETERMINANTS OF PUREBRED BEEF BULL PRICE DIFFERENTIALS
Provedor de dados: 31
Autores: Dhuyvetter,   Kevin C.; Schroeder,   Ted C.; Simms,   Danny D.; Bolze,   Ronald P., Jr.; Geske,   Jeremy.
Bulls are an important investment for commercial beef cattle producers since, over time, bulls introduce most of the new genetic attributes into typical beef cow herds. Therefore, heritable bull traits determine bull prices. Bulls possess a large number of traits to consider in pricing. In recent years, new measures of both qualities have been introduced in the form of expected progeny differences (EPDs). This study estimates market values associated with specific bull attributes, recently introduced EPDs, and bull sale marketing efforts.  Important bull price determinants include bull color, polled, conformation, muscling, disposition, age, birth weight, weaning weight, milk EPD, birth and weaning weight EPDs, sale location, order bull was sold, whether...
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/31030

MICHIGAN FARM DATABASE NEW DIRECTIONS FOR 1995
Provedor de dados: 31
Autores: Nott,   Sherrill B.; Hepp,   Ralph E.
The purpose of this paper is to provide financial and production performance data for Michigan farms in 1995.  Separate sections report on the farm types of Cash Grain, Dairy, Fruit,   General Crop, General Livestock, and Swine.  This data can be used as a comparative data base for individual farmers to conduct a financial analysis of their own farm to identify strengths and weaknesses.  This report can also provide information to those interested in the financial well being of Michigan agriculture.   Immediately following are sections on the data source, and how farm types were defined.  The last section of the publication has definitions of calculations.  Reader response is requested.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management.
Ano: 1996
URL: http://purl.umn.edu/11486

Using Income Classes to Estimate Consumption Parameters for Food Policy Analysis
Provedor de dados: 31
Autores: Fabiosa,   Jacinto F.; Mohanty,   Samarendu; Smith,   Darnell B.; Meyers,   William H.
This paper develops an approach to estimate consumption parameters by income classes.  It combines price elasticities estimated from aggregated market data and income-class-specific income elasticities derived from household expenditure surveys using Slutsky relationships to calculate income-class-specific price elasticities.  The approach was applied to estimate income-class-specific price elasticities for major agricultural commodities consumed in Jamaica.  The importance of these elasticities for food policy analysis is demonstrated by using an econometric simulation model framework.  Food policy analysis based on aggregate consumption parameters may introduce bias into the results.  This is particularly true in the case of developing countries where...
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy; Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/18578

A STUDY OF ASIAN-AMERICAN RICE DEMAND IN HOUSTON, TEXAS
Provedor de dados: 31
Autores: Goodwin,   Harold L., Jr.; Holcomb,   Rodney B.; Rister,   M. Edward.
Responses to a product placement study of five long-grain rice varieties in 192 Asian-American households in Houston, Texas were utilized to estimate a quality-adjusted price model for rice demand. Quantity-dependent demand functions were estimated using actual price, quality-adjusted price, and no price scenarios. Results indicate that, although price was statistically significant, it explained very little of the variation in the quantity of rice demanded; further, income was not significant in determining rice demand for Asian Americans. Their demand appears to be driven primarily by ethnic and cultural considerations and household characteristics. Implications for retail marketing are discussed.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/27896

SOURCES OF GROWTH IN U.S. GDP AND ECONOMY-WIDE LINKAGES TO THE AGRICULTURAL SECTOR
Provedor de dados: 31
Autores: Gopinath,   Munisamy; Roe,   Terry L.
Sources of growth in U.S. gross domestic product (GDP) are analyzed in a general equilibrium, open economy framework using time-series data. Contributions from labor and capital account for 75% of the economy’'s average growth, with total factor productivity (TFP) accounting for the remainder. Changes in the domestic terms of trade appear to be biased in favor of the services sector and against the agricultural and industrial sectors. A number of Rybczynski and Stolper-Samuelson-like linkages between the agricultural sector and the rest of the economy are identified. Labor-using technological change and favorable terms of trade appear to be the major contributors to the growth of the services sector. These changes have led to a decline in the...
Tipo: Journal Article
Palavras-chave: Public Economics.
Ano: 1996
URL: http://purl.umn.edu/31023

The Information Technology Revolution and Higher Education
Provedor de dados: 31
Autores: Nelson,   Gerald C.
Higher education is under pressure from state legislatures and other clients to reduce costs. Two information technologies - increased computing power on the desktop and the World Wide Web - have shifted out the meta production function for instruction in higher education. The theory of induced innovation provides hypotheses about the kinds of educational practices that will attract technological change. Several sources of inefficiency in higher education are identified and likely technology-driven changes suggested. These innovations will provide the means to reduce costs in higher education.
Tipo: Journal Article
Palavras-chave: Induced innovation; Learning technologies; World Wide Web; Agribusiness; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/90399

DISCUSSION: A CANADIAN PROCESSOR'S PERSPECTIVE
Provedor de dados: 31
Autores: Matte,   Kempton L.
Tipo: Conference Paper or Presentation
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/16965

STRUCTURAL CHANGES IN THE DEMAND FOR FOOD IN ASIA
Provedor de dados: 31
Autores: Huang,   Jikun; Bouis,   Howarth E.
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/16322

THE FEDERAL AGRICULTURE IMPROVEMENT AND REFORM ACT OF 1996: COMMODITY AND CONSERVATION PROGRAMS
Provedor de dados: 31
Autores: Schweikhardt,   David B.; Batie,   Sandra S.; Doering,   Otto C., III; Jones,   Bob F.
The Federal Agriculture Improvement and Reform Act contains major revisions in farm commodity programs. This paper summarizes the major provision of legislation.  Because many program implementation rules must be developed, program participants are advised to consult their local office of the USDA Farm Service Agency for final program provisions.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/11587

DISCUSSION: A PRODUCER PERSPECTIVE ON THE FUTURE OF DOMESTIC AND TRADE DAIRY POLICY IN CANADA
Provedor de dados: 31
Autores: Proulx,   Yvon.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/16945

Front Cover
Provedor de dados: 31
Front Cover and Contents Pages
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/22396

A Computable Equilibrium Model for the Study of Political Economy
Provedor de dados: 31
Autores: Freeman,   John R.
Despite much hard work in recent years, economics and political science remain largely separate disciplines. Few meaningful bridges have been build between them, and hence useful gains from intellectual trade between the two have not been realized. Some of the most recent efforts to construct such a bridge are critically evaluated. It is shown that this literature suffers from a lack of theoretical balance between economic and political theory; unrealistic, temporally aggregated conceptions of political-economic equilibrium; failure to incorporate theoretically meaningful stochastic elements of economic and political processes; and the absence of a coherent methodology for gauging the empirical power of political-economic models.  In the spirit of the AJPS...
Tipo: Working or Discussion Paper
Palavras-chave: Political Economy.
Ano: 1996
URL: http://purl.umn.edu/7484

Baby Boom or Bust? Changing Fertility in Post-Communist Czech Republic and Slovakia
Provedor de dados: 31
Autores: Chase,   Robert S.
Transition from a centrally planned to a market oriented economy alters the incentives individuals face as they make consumption and time allocation decisions. Families must reevaluate their fertility plans as a result of new wage structures, reduced government subsidies of the costs of raising children, and uncertainty from a changed economic environment. Using micro-data from 1984 and 1993 in the Czech Republic and Slovakia, this paper estimates a dynamic stock adjustment model, relating observed drops in fertility post-Communism to new wages, prices, and risks. Because transition will have affected only those born in the three years prior to the 1993 data, considering children under age three isolates these effects. Earnings influence total demand for...
Tipo: Working or Discussion Paper
Palavras-chave: Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/28483

IMPLICIT PRICE ESTIMATION OF RICE QUALITY ATTRIBUTES FOR ASIAN AMERICANS
Provedor de dados: 31
Autores: Goodwin,   Harold L., Jr.; Holcomb,   Rodney B.; Rister,   M. Edward.
Product placement survey data for 192 Asian-American households in Houston were used to analyze the value of rice quality attributes via the Consumer Goods Characteristics model (CGCM). Five rice varieties were used for this study: domestic Lemont, Jasmine 85, Toro II, and two different Thai import varieties. For each variety, marginal implicit prices were calculated at the means for seven characteristics: color, texture, aroma, stickiness, flavor, aftertaste, and moisture.
Tipo: Journal Article
Palavras-chave: Asian Americans; Marginal implicit prices; Quality characteristics; Consumer Goods Characteristics Model; Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/15111

A Theory of Nonprice Export Promotion with Application to USDA's Subsidy Programs
Provedor de dados: 31
Autores: Kinnucan,   Henry W.; Xiao,   Hui.
Tipo: Technical Report
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/122991

Corruption, Black Markets, and the Fiscal Problem in LDC's: Some Recent Findings
Provedor de dados: 31
Autores: McLaren,   John.
The fiscal difficulties of LDC’s, and the important role for evasion as a part of them, are well-known. Drawing on the rich literature on tax evasion in the public finance literature, much recent research has shed light on two phenomena contributing to this problem: Fiscal corruption and evasion through illegal transactions. This note surveys some of this recent research.
Tipo: Working or Discussion Paper
Palavras-chave: Smuggling; Corruption; Tax evasion; Financial Economics.
Ano: 1996
URL: http://purl.umn.edu/28507

MARKET COMPETITION AND METROPOLITAN-AREA GROCERY PRICES
Provedor de dados: 31
Autores: Binkley,   James K.; Connor,   John M.
This paper examines the relationship of 1987 retail grocery prices to supermarket sales concentration across 95 U.S. metropolitan areas.  The regression model incorporates a large number of population, retail-cost, and retail competition factors and separate prices by type of grocery item.  We find that the concentration-price relationship is sensitive to item type: positive for packaged, branded, dry groceries and unrelated for produce, meat, and dairy product prices.  As for market rivalry, we find that small grocery stores provide no grocery price competition for supermarkets. However, branded grocery prices are driven down by fast-food places and by rapid price churning, whereas for unbranded foods the presence of warehouse stores places downward...
Tipo: Working or Discussion Paper
Palavras-chave: Retail grocery trade; Pricing policy; Variable price merchandising; Market competition; Category management; Market structure; Sales concentration; Price discrimination; Price rivalry; Oligopoly; Food demand; Food prices; Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/25988

Deciding on the Worth of Agricultural Land
Provedor de dados: 31
Autores: Madden,   B. J.; Malcolm,   Bill.
The price farmers pay for farm land can be a critical determinant of the continued success or eventual failure of a farm business. A decision support model has been developed to make explicit the usually implicit assumptions about expected profitability, financing and debt servicing aspects of land purchase decisions. The model can be used to help the decision maker to identify offer prices for farm land which are probably sound and prices which are likely to be unsound.
Tipo: Journal Article
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/12408

THE TRANSITION IN THE CONTRIBUTION OF LIVING AQUATIC RESOURCES TO FOOD SECURITY
Provedor de dados: 31
Autores: Williams,   Meryl J.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/16354

COMPARISON OF NEW ZEALAND AND THE UNITED STATES MEAT INDUSTRY EXPORTING AND MARKETING PRACTICES
Provedor de dados: 31
Autores: Welsh,   Robert S.; Llanes,   Violi.
The paper is a comparative analysis of selected beef and sheep meat exporting practices. These two particular types of meat were selected as these are the two major export products from New Zealand. The United States also is a major beef exporter, but exports little sheep meat. There is a major difference between the two countries in their overall approach to the export market. New Zealand utilizes a coordinated industry strategy while the United States does not have a coordinated strategy as individual companies aggressively pursue their own individual interests without much consideration of the overall implications for the total industry. The paper initially considers beef and sheep meat production, exports and imports, and the critical issues pertaining...
Tipo: Journal Article
Palavras-chave: International Relations/Trade; Marketing.
Ano: 1996
URL: http://purl.umn.edu/27779

THE 1996 FARM BILL: IMPLICATIONS FOR FARMERS
Provedor de dados: 31
Autores: Knutson,   Ronald D.; Keeling,   John; Ray,   Daryll E.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/17275

Foodborne Illness in the Elderly Population of the United States, 1987-1993
Provedor de dados: 31
Autores: Steahr,   Thomas E.
The purpose of this study is to identify the level of foodborne illness in the elderly population of the United States and to examine changes over time in these patterns.  The analysis is based upon the National Hospital Discharge Survey done by the National Center for Health Statistics, Centers for Disease Control and Prevention from 1987 to 1993.  A list of foodborne illness is developed using International Classification of Disease Codes, 9th Revision.  Major findings are that the amount of foodborne illness for patients 65 years of age and older who were discharged form hospitals is increasing.  Demographic characteristics of age, sex, marital status, and race are associated with different levels of foodborne illness.  The specific diseases of other...
Tipo: Working or Discussion Paper
Palavras-chave: Food Consumption/Nutrition/Food Safety; Health Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/25199

THE STATUS AND CONDITIONS OF NEW JERSEY'S FOOD WHOLESALE INDUSTRY: FOOD, GROCERIES, CONFECTIONERY, AND BEVERAGE WHOLESALE AND BROKERAGE
Provedor de dados: 31
Autores: Adelaja,   Adesoji O.; Nayga,   Rodolfo M., Jr.; Tank,   Karen Rose; Schilling,   Brian J.
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/18187

PRICING AND USE OF DROUGHT-STRESSED AND IMMATURE CORN AS SILAGE FOR DAIRY CATTLE
Provedor de dados: 31
Autores: Black,   J. Roy; Schwab,   Gerald; Bucholtz,   Herb; Rust,   Steven R.
No abstract available.
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/11678

PROCEEDINGS OF A CONFERENCE ON INSTITUTIONAL INNOVATION IN AGRICULTURAL RESEARCH, TEACHING, AND EXTENSION IN ITALY, EUROPE, AND THE U.S.A., AGRIPOLIS, ITALY, JUNE 19, 1996
Provedor de dados: 31
Contents:  Ten Years of Exchanges: University of Padova-Minnesota, by Ben Senauer; An Overview of the Report of the National Research Council's Committee on the Future of the Land Grant University Colleges of Agriculture, by G. Edward Schuh; Changes in U.S. Agricultural Research, Teaching, and Extension: A Dean's Perspective, by Chester O. McCorkle; Agricultural Economics Teaching and Research in Europe: Issues and Perspectives, by Harald Von Witzke; Changes in U.S. Agricultural Economics Departments: An Informal View, by James P. Houck
Tipo: Working or Discussion Paper
Palavras-chave: Institutional and Behavioral Economics; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/14439

Macroeconomic adjustment and agricultural performance in Southern Africa: a quantitative overview
Provedor de dados: 31
Autores: Bautista,   Romeo M.
"February 1996." Includes bibliographical references (p. 29-30).
Tipo: Working or Discussion Paper
Palavras-chave: Macroeconomics -- Models; Economic development; Agricultural development -- Africa; Southern; Malawi; Tanzania; Zimbabwe; Zambia; International Development.
Ano: 1996
URL: http://purl.umn.edu/97768

O Desafio da Produtividade em Moçambique: Orçamentos Parciais do Algodão
Provedor de dados: 31
Autores: SIMA,   Technical Team.
Resultados das investigações do Projecto de Segurança Alimentar em Moçambique MAP-Direcção de Economía-Dpto. Estatística
Tipo: Report
Palavras-chave: Food security; Food policy; Mozambique; Crop Production/Industries; Productivity Analysis; Q18.
Ano: 1996
URL: http://purl.umn.edu/55198

Evaluating Traditional Share-Price and Residual Demand Measures of Market Power in the Catsup Industry
Provedor de dados: 31
Autores: Haller,   Lawrence E.; Cotterill,   Ronald W.
In this paper we specify a price determination model which can test both the traditional positive interbrand price – share hypothesis and the negative intrabrand relationship predicted by residual demand analysis.  We evaluate this relationship empirically using three-dimensional panel data from the catsup industry.  We find support for both hypothesized relationships, and conclude that market power exists in this industry.  Further, we conclude that the results depend critically on the characteristics of the data set to be analyzed.
Tipo: Working or Discussion Paper
Palavras-chave: Market power; Residual demand; Product differentiation; Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/25193

THE IMPLICATIONS OF CHANGING FEDERALISM: THE COUNTY VIEW
Provedor de dados: 31
Autores: Todd,   Barbara Sheen.
Tipo: Conference Paper or Presentation
Palavras-chave: Public Economics.
Ano: 1996
URL: http://purl.umn.edu/17278

AGRICULTURAL LAND VALUES AND URBAN GROWTH; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Tempesta,   Tiziano; Thiene,   Mara.
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development; Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/14382

EFFECTS OF RESERVOIR AQUATIC PLANT MANAGEMENT ON RECREATIONAL EXPENDITURES AND REGIONAL ECONOMIC ACTIVITY
Provedor de dados: 31
Autores: Bergstrom,   John C.; Teasley,   R. Jeff; Cordell,   H. Ken; Souter,   Ray A.; English,   Donald B.K.
Exotic aquatic plant management is a major concern for public reservoir management in many regions of the United States. A study was conducted to measure the effects of alternative aquatic plant management strategies on recreational expenditures and regional economic activity. The study areas was Lake Guntersville, Alabama, and the local economy surrounding the lake. Lake Guntersville is one of the largest reservoirs in the Tennessee Valley Authority system. Results suggested the relatively moderate levels of aquatic plant control are associated with the highest levels of recreation-related economic effects on the economy surrounding Lake Guntersville.
Tipo: Journal Article
Palavras-chave: Aquatic plants; Input-output analysis; Public reservoir management; Recreational expenditures; Regional economic activity; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/15120

AGRICULTURAL POLICY ANALYSIS: DISCUSSION
Provedor de dados: 31
Autores: Schertz,   Lyle P.
Agricultural economists are appropriately concerned about their profession's contributions to policy decisions. An examination of alternative approaches to transforming policy analyses is in order. There are opportunities to (a) focus on income and wealth distribution, (b) give attention to the public as a primary client, (c) avoid advocacy, and (d) adjust institutions in ways that encourage participation in policy analyses including the development of data systems.
Tipo: Journal Article
Palavras-chave: Equity; Income and wealth distribution; Policy analysis; Public as a primary client; Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/15250

LAND AND AGRARIAN REFORM IN THE KYRGYZ REPUBLIC
Provedor de dados: 31
This report presents LTC's findings and recommendations on the land tenure transition. The information contained in this report has been used to prepare a second document, Land and Agrarian Reform in the Kyrgyz Republic: Consolidation Plan, that proposes a set of actions to ensure that the reforms are completed and produce a viable, market-oriented, agricultural sector. Chapter 1 offers baseline geographic information on the KR, an account of the macroeconomic environment in which reforms are taking place, a brief project history, and a description of the research methods. Chapter 2 chronicles the legal and regulatory changes that have driven land and agrarian reform in the KR since 1991 and evaluates this legislation for its legal consistency, underlying...
Tipo: Working or Discussion Paper
Palavras-chave: Agrarian structure--Kyrgyzstan; Land administration--Kyrgyzstan; Land reform--Kyrgyzstan; Land tenure--Government policy--Kyrgyzstan; Land tenure--Kyrgyzstan; Land titles--Registration and transfer--Kyrgyzstan; International Development; Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/12757

IMPROVING THE RELEVANCE OF RESEARCH ON PRICE FORECASTING AND MARKETING STRATEGIES
Provedor de dados: 31
Autores: Brorsen,   B. Wade; Irwin,   Scott H.
Agricultural economists' research on price forecasting and marketing strategies has been used little by those in the real world.  We argue that fresh approaches to research are needed.  First, we argue that we need to adopt a new theoretical paradigm, noisy rational expectations.  This paradigm suggests that gains from using price forecasting models with public data or from using a marketing strategy are not impossible, but any gains are likely to be small.  We need to conduct falsification tests; to perform confirmation and replication; to adjust research to reflect structural changes, such as increased contracting; and always to conduct statistical tests.  We also provide a modest agenda for changing our research and extension programs.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis; Marketing.
Ano: 1996
URL: http://purl.umn.edu/31655

THE ECONOMIC CONTRIBUTION OF AGRICULTURE IN DELAWARE
Provedor de dados: 31
Autores: Tytus,   Peter J.; Hastings,   Steven E.; Tanjuakio,   Rodolfo V.
The decreasing share of production agriculture in the U.S. economy in general and Delaware in particular has raised questions about the amount of government resources being spent on the local agricultural sector.  A basic question in the debate is: "What is the real economic contribution of agriculture?"  This study looks at the economic role of agriculture in Delaware, presenting different perspectives of what agriculture is and what it contributes to the state economy.  Based on three definitions of agriculture, the economic impacts as measured by shares to total employment, output, and value added were estimated using IMPLAN, an input-output modeling software.  In each economic impact measure, the share of the local agricultural sector to the total...
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/31652

Timber Supply Model 96: A Global Timber Supply Model with a Pulpwood Component
Provedor de dados: 31
Autores: Sedjo,   Roger A.; Lyon,   Kenneth S.
This study involves an update of our earlier Timber Supply Model, which was fully developed in our book, The Adequacy Of Global Timber Supply by Sedjo and Lyon (1990), published by Resources for the Future. The new version, called Timber Supply Model 1996 (TSM96), uses an economic market supply/demand approach to project an intertemporal time path of the world's price and output level of industrial wood. As did the original TSM, the TSM96 provides projections of the time path of the equilibrium output levels of the several regions into which the world has been subdivided. A major new feature of TSM96 is that industrial wood, treated as homogeneous in the earlier study, has be subdivided into two different wood types -- pulpwood and solidwood. The supply of...
Tipo: Working or Discussion Paper
Palavras-chave: Timber models; Markets; Optimal control; Projections; Timber supply; Resource /Energy Economics and Policy; C62; Q21; Q23.
Ano: 1996
URL: http://purl.umn.edu/10696

Assessing the Adequacy of Diets: A Brief Commentary
Provedor de dados: 31
Autores: Carriquiry,   Alicia L.
Tipo: Working or Discussion Paper
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/18289

RECONCILING BILATERAL TRADE DATA FOR USE IN GTAP
Provedor de dados: 31
Autores: Gehlhar,   Mark J.
Bilateral trade flows are reported by both importers and exporters. Large discrepancies in reported import/export trade flows can be found when these two reports are compared.   The GTAP database requires consistency between the export flow and its corresponding import flow for all partner pairs. Therefore, bilateral trade data in its reported form cannot be directly used for GTAP. Various methods can be used to produce a consistent set of bilateral trade flows. However, achieving consistency alone does not necessarily provide credible trade flows.   Matrix balancing using trade totals published by international agencies is not appropriate since these totals are not reconciled but are simply totals from country-reported flows.    A method is developed with...
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/28714

Groundwater policy: issues and alternatives in India
Provedor de dados: 31
Autores: Moench,   Marcus.
This paper reviews policy-related issues discussed in recent conferences that will affect groundwater development and management efforts in South Asia. Emphasis is given to policy issues surrounding emerging groundwater depletion and quality concerns, and issues concerning the equitable development of groundwater for poverty alleviation. The paper outlines the range of services that depend on groundwater resources and outlines the range of services that depend on groundwater resources to provide these services, and the complications stemming from the fragmented approach taken to water management throughout the region. A range of responses dealing with the management of the physical system is identified. In conclusion , the paper discusses institutional...
Tipo: Book
Palavras-chave: Groundwater management; Groundwater extraction; Water policy; Monitoring; Environment; Poverty; Aquifers; Case studies; Salinity; Salt water intrusion; Water quality; Pollution; Water market; Water use efficiency; Crop Production/Industries; Farm Management; Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/113620

EVALUATION OF EXPORT PROMOTION PROGRAMS ON TRADE OF HIGH-VALUED AND PROCESSED FOOD PRODUCTS: IMPLICATIONS FOR NORTH CAROLINA AGRIBUSINESS
Provedor de dados: 31
Autores: Amponsah,   William A.; Adu-Nyako,   Kofi; Pick,   Daniel H.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/51209

ANALYSIS OF THE U.S.-EUROPEAN COMMUNITY OILSEEDS AGREEMENT
Provedor de dados: 31
Autores: Ames,   Glenn C.W.; Gunter,   Lewell F.; Davis,   Claudia D.
In 1986, the American Soybean Association filed a Section 301 petition under the Trade Act of 1974, alleging that European Community oilseed subsidies nullified and impaired benefits of previous trade concessions, specifically the tariff binding of 1962.  Two bilateral trade agreements were negotiated to remedy the dispute, the Blair House Agreement and the Memorandum of Understanding on Oilseeds.  The impacts of these trade agreements were simulated using a three region trade model.  Results indicated that neither supply constraints nor penalties for overproduction will contribute to a recovery of U.S. soybean exports to the EC.    (Missing 6 tables)
Tipo: Working or Discussion Paper
Palavras-chave: Oilseeds; Trade agreements; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16646

A Comparison of Timber Models for Use in Public Policy Analysis
Provedor de dados: 31
Autores: Sohngen,   Brent; Sedjo,   Roger A.
In this paper, we compare and contrast two types of timber models that have been used for public policy analysis. These models have been variously used to predict price, inventory and market welfare impacts under different exogenous forces that impact timber markets. The framework and theory for each model type is presented and discussed. We then thoroughly test the two model types across six potential exogenous shocks to timber markets, ranging from instantaneous demand shocks to gradual supply adjustments. Our comparison indicates that these models predict potentially important differences in timber market behavior. These differences are important to consider for those who do public policy analysis.
Tipo: Working or Discussion Paper
Palavras-chave: Timber markets; Models; Dynamic adjustment; Optimization; Resource /Energy Economics and Policy; C62; Q21; Q23.
Ano: 1996
URL: http://purl.umn.edu/10467

DISCUSSION: AN AMERICAN PROCESSOR'S PERSPECTIVE
Provedor de dados: 31
Autores: Glenn,   Marcia E.
Tipo: Conference Paper or Presentation
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/16947

Zimbabwe Food Security Success Story: Maize Market Reforms Improve Access to Food Even While Government Eliminates Food Subsidies
Provedor de dados: 31
Autores: Jayne,   Thomas S.; Rubey,   Lawrence; Chisvo,   Munhamo; Weber,   Michael T.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Food Security and Poverty; Downloads June 2008-July 2009: 10.
Ano: 1996
URL: http://purl.umn.edu/11326

Successes and Failures of Development Experience Since the 1980s
Provedor de dados: 31
Autores: Ranis,   Gustav.
This paper reviews the development experience since the 1980's and finds room for guarded optimism about what we can learn from it. Firstly, a global consensus is emerging on the need for macro-economic stability through prudent fiscal, monetary and foreign exchange policies. However, at the micro or structural level, while governments need to decentralize their decision-making authority more fully than they have thus far, in reaction to the recent reappraisal of the East Asian model there is some danger that development policy will swing too far in rejecting liberalization and returning to government intervention. Secondly, the paper points out that, while there exists a well-recognized causal nexus between exports and growth, the reverse causation also...
Tipo: Working or Discussion Paper
Palavras-chave: Development; Structural adjustment; Stabilization; Multi-lateral development banks; East Asian miracle; International Development.
Ano: 1996
URL: http://purl.umn.edu/28529

FARMING OBJECTIVES AND ENVIRONMENTAL ISSUES IN THE VENICE LAGOON WATER BASIN; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Bombana,   Manuela; Rosato,   Paolo.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/14386

Will the CFA Franc Devaluation Enhance Sustainable Agricultural Intensification in the Senegalese Peanut Basin?
Provedor de dados: 31
Autores: Diagana,   Bocar N.; Kelly,   Valerie A.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management; Downloads July 2008-June 2009: 5.
Ano: 1996
URL: http://purl.umn.edu/11423

VALUING THE PROTECTION OF MINIMUM INSTREAM FLOWS IN NEW MEXICO
Provedor de dados: 31
Autores: Berrens,   Robert P.; Ganderton,   Philip T.; Silva,   Carol L.
Currently, New Mexico law does not provide any legal avenue of protecting instream flows. A change in the status quo requires that a prima facie case be made— establishing sufficient evidence of the public benefits from maintaining instream flows to warrant consideration, or standing, in future water policy deliberations. Using the contingent valuation (CV) method, we investigate the nonmarket benefits of protecting minimum instream flows in New Mexico. Results from a dichotomous choice CV telephone survey show significant nonmarket values for protecting instream flows that are sensitive to a change in scope and insensitive to a group-size reminder.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/31022

ECONOMIC HYSTERESIS AND THE EFFECTS OF OUTPUT REGULATION
Provedor de dados: 31
Autores: Richards,   Timothy J.
Economic hysteresis, the continuation of a phenomenon after its initial cause has disappeared, represents an alternative theoretical explanation for the fixed-asset problem. When a set of fixed assets includes quota licenses, hysteresis in license investment leads to distortions that have not been measured in the policy analysis literature. A model of economic “"friction"” tests the effect of hysteresis in Alberta dairy investment. Estimates of investment functions show that desired investment (disinvestment) must be significantly greater (less) than zero before any action is taken. Because cattle and quota are often purchased together, the relatively long periods of no change in quota holdings that result from hysteresis cause similar periods in which...
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/30999

VERTICAL INTEGRATION INCENTIVES IN MEAT PRODUCT MARKETS
Provedor de dados: 31
Autores: Antonovitz,   Frances; Buhr,   Brian L.; Liu,   Donald J.
Tipo: Working or Discussion Paper
Palavras-chave: Industrial Organization; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/13989

THE AUSTRALIAN AGRICULTURAL ECONOMICS PROFESSION: AN APPRAISAL OF SOME CURRENT TRENDS
Provedor de dados: 31
Autores: Ahmadi-Esfahani,   Fredoun Z.; Bonnor,   Kylie A.
Using the results of the first part of their 1994 membership survey, Ahmadi-Esfahani and Brakey (1996) examined the structure, conduct and performance of the Australian Agricultural and Resource Economics Society qualitatively. This paper extends that analysis by appraising some current trends in the Australian agricultural economics profession quantitatively. It concentrates on the second part of the survey to address a number of fundamental questions. A comparison of the US and Australian agricultural economics professions is made. The implications of the analysis for the product mix of the Society are explored.
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/22366

SOURCES OF TECHNICAL CHANGE: INDUCED INNOVATION, EVOLUTIONARY THEORY AND PATH DEPENDENCE
Provedor de dados: 31
Autores: Ruttan,   Vernon W.
The 1960s through the 1980s were very productive of new theory and empirical insight into the sources of technical change.  In this  paper I argue that each of the three approaches that have been  advanced--induced technical change, evolutionary theory and path dependence--is approaching a dead end.  The induced technical change process is driven by changes in the economic environment in which the firm (or public research agency) finds itself.  But its internal mechanism, the learning and search process, remain inside a black box.  The evolutionary model builds on the behavioral theory of the firm in an attempt to provide a more realistic description of the internal workings of the black box.  The strength of the path dependence interpretation lies in the...
Tipo: Working or Discussion Paper
Palavras-chave: Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/12974

EXECUTIVE SUMMARY
Provedor de dados: 31
Includes: The Changing Relationship Between Federal, State and Local Governments, by Tim Penny; The Implications of Changing Federalism: County View, by Barbara Sheen Todd; The Implications of Changing Federalism State View, by Tom Stinson; Shaping National Values: A Non-Profit Perspective, by David Mathews; The Role of Religion in Public Policy Debate, by Gary Farley; Does the Press Shape or Reflect National Values? by Hasso Hering; What Does it Mean? by Daryll Ray; Implications of the 1996 Farm Bill-Comments, by Chuck Hassebrook; Implications of the 1996 Farm Bill-Another Comment, by John M. Schnittker; The Changing Work Force and Implications for Work and Family, by Cali Williams; Work-Life: An Interplay of Issues, by Patricia Hendel; Forms of Property...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/17102

POTENTIAL IMPLICATIONS OF FREER TRADE FOR THE UNITED STATES AND CANADIAN DAIRY SECTORS: A SPATIAL ANALYSIS
Provedor de dados: 31
Autores: Novakovic,   Andrew M.; Doyon,   Maurice; Bishop,   Phillip M.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16954

Estimating the Costs of MPCI Under the 1994 Crop Insurance Reform Act
Provedor de dados: 31
Autores: Hart,   Chad E.; Smith,   Darnell B.
This study estimates the government costs of federal crop insurance under the framework of the Crop Insurance Reform Act of 1994. The history of federal crop insurance is outlined to examine how MPCI has evolved. The 1994 Act addressed two of the major problems of MPCI: low participation and additional disaster assistance. Total government costs for the FCIC and MPCI are estimated to be more than $2 billion, on average, from 1996 to 2003, with half of this amount being in the form of premium subsidies paid by the government.
Tipo: Working or Discussion Paper
Palavras-chave: Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/18504

CONTRACTING FOR NON-POINT-SOURCE POLLUTION ABATEMENT
Provedor de dados: 31
Autores: Bystrom,   Olof; Bromley,   Daniel W.
This paper presents an incentive scheme to control agricultural non-point-source pollution. The analysis is based on a nested agent framework with three parties; farmers, a country's government, and the governments of all countries that affect each other's environmental quality. Unlike previous analysis of incentive schemes to control agricultural pollution, we suggest non-individual contracts between farmers and a regulating authority as a solution to the domestic pollution problem. Our incentive scheme proposes collective penalties as a way to control pollution. To solve the international problem of pollution management of a common (water) resource, we propose an international agency with authority to write and enforce contracts in each of its member...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/12620

R&amp;D Spillovers: Evidence from U.S. Food Processing, Farm Machinery and Agriculture
Provedor de dados: 31
Autores: Gopinath,   Munisamy; Roe,   Terry L.
This paper focuses on the private and social rates of return to R&amp;D capital in the three vertically linked sectors, primary agriculture, food processing, and farm machinery and equipment. Evidence supporting a divergence between these rates is found for primary agriculture and food processing. Using a cost function approach, the private rates of return to R&amp;D capital ranged from an average of 10.2% per annum for food processing to 22.3% for farm machinery and equipment. In the case of agriculture, the direct return to public R&amp;D averaged 37.3% per annum. The social rates of return to R&amp;D capital in agriculture and food processing are significantly larger than the private rates due to the existence of spillovers. While the divergence between...
Tipo: Working or Discussion Paper
Palavras-chave: Research and Development/Tech Change/Emerging Technologies; 013; 032; Q16.
Ano: 1996
URL: http://purl.umn.edu/7504

Women and Agroforestry: A Human Ecology Approach to Understanding The Needs and Priorities of Women Farmers in Africa
Provedor de dados: 31
Autores: Just,   Lesley; Murray,   Eloise C.
This study examined rural Ugandan women's lives to discover reasons why they may or may not practice agroforestry. These women are responsible for the triple roles of reproduction, production and community maintenance work, all carried out within the context of a gendered social environment. From the perspective of the social manifestations of gender, six key factors were identified. The findings were used to create a theoretical model of the interaction between rural women's lives and agroforestry systems. The model shows that agroforestry is not only a biophysical farming system; There is a human component in that interacts with other components to determine the success or failure of an agroforestry initiative. The model can be used to identify and...
Tipo: Working or Discussion Paper
Palavras-chave: Women in development; Agroforestry programs; Human ecology; Women and work; Crop Production/Industries; Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/24102

ECONOMIC OPPORTUNITIES FOR DAIRY COW CULLING MANAGEMENT OPTIONS
Provedor de dados: 31
Autores: Ott,   Stephen L.
Due to a lack of national information about cull dairy cows, the USDA's National Animal Health Monitoring System (NAHMS) Dairy '96 Study investigated culling management practices. Operations included in the study represented 83.1 percent of U.S. milk cows. Most dairy cows were culled for reasons associated with their inability to profitably produce high-quality milk and calves; reasons for culling were not usually related to ill health or systemic disease. Results showed that almost all cull dairy cows in the US are intended for beef slaughter, as only about 4.4 percent were sent to other dairy operations. Nearly 77 percent of cows intended for beef slaughter were sent to markets, auctions, and sale barns, while 22 percent were sent straight to slaughter...
Tipo: Report
Palavras-chave: NAHMS; Dairy; Cattle; Monitoring; Epidemiology; Production; Economics; Culling; Transportation; Milk; Marketing; Disease; Slaughter condemnation; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/45494

The effects of work histories on agricultural wages
Provedor de dados: 31
Autores: Hashida,   Emiko; Perloff,   Jeffrey M.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural wages; Employment; Off-farm employment; Unemployment; Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/47282

The Farmers' Plea to Environmentalists
Provedor de dados: 31
Autores: Avery,   Dennis T.
This paper critically examines linkages between alternative farming practices and environmental quality. Environmental impacts of high-yield farming are contrasted to those of low-yield farming. Traditional low-yield farming systems, while being promoted by environmental groups, have resulted in massive famine, higher cancer rates, soil erosion, and losses in wildlife habitat. Organic farming and other low-yield systems are land intensive and invade marginal farmland, thereby destroying wildlife habitat and biodiversity. Low-yield farming has not and cannot produce enough food to meet the food needs of the world’s population. By contrast, high-yield farming minimizes land use for food production and increase the availability of land for wildlife habitat...
Tipo: Journal Article
Palavras-chave: High-yield farming; Environmental quality; Wildlife habitat; Biodiversity; Population growth; Hunger; Free trade; Agricultural and Food Policy; Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/90375

ANALYSIS OF THE RISK MANAGEMENT PROPERTIES OF GRAZING CONTRACTS VERSUS FUTURES AND OPTION CONTRACTS
Provedor de dados: 31
Autores: Harrison,   R. Wes; Bobst,   Barry W.; Benson,   Fred J.; Meyer,   Lee.
A stochastic budget simulator and generalized stochastic dominance are used to compare the risk management properties of grazing contracts to futures and option contracts. The results show that the risks of backgrounding feeder cattle are reduced significantly for pasture owners in a grazing contract. However, the risks of the cattle owner in a grazing contract are not significantly reduced. The results show that generally risk adverse pasture owners prefer grazing contracts to integrated production when traditional hedging is used to manage price risks. In addition, grazing contracts compare favorably with put option contracts for some pasture owners.
Tipo: Journal Article
Palavras-chave: Backgrounding; Futures contracts; Grazing contracts; Options contracts; Risk management; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/15117

Electricity Restructuring and Regional Air Pollution
Provedor de dados: 31
Autores: Palmer,   Karen L.; Burtraw,   Dallas.
This paper investigates the regional air pollution effects that could result from new opportunities for inter-regional power transmission in the wake of more competitive electricity markets. The regional focus is important because of great regional variation in the vintage, efficiency and plant utilization rates of existing generating capacity, as well as differences in emission rates, cost of generation and electricity price. Increased competition in generation could open the door to changes in the regional profile of generation and emissions. We characterize the key determinant of changes in electricity generation and transmission as the relative cost of electricity among neighboring regions. In general, low cost regions are expected to export power...
Tipo: Working or Discussion Paper
Palavras-chave: Air pollution; Electricity restructuring; Transmission; Environmental Economics and Policy; L94; Q25; Q28.
Ano: 1996
URL: http://purl.umn.edu/10766

The "Regulatory Compact" and Implicit Contracts: Should Stranded Costs Be Recoverable?
Provedor de dados: 31
Autores: Boyd,   James.
Progress toward electricity market deregulation has brought controversy over whether or not utilities are entitled to compensation for "stranded costs," i.e., costs utilities will not be able to recover due to the advent of competition in their markets. This paper uses a legal and economic analysis of contracts to address the desirability of utility cost recovery. First, underlying principles of law are reviewed to determine whether or not there is a legal presumption of recovery. Then, the analysis considers whether or not an implicit "regulatory compact" between utilities and regulators follows from principles in the economic analysis of law, particularly theories of efficient breach and implicit contracts. The paper concludes that recovery should occur...
Tipo: Working or Discussion Paper
Palavras-chave: Stranded costs; Deregulation; Contracts; Electric utilities; Environmental Economics and Policy; L43; L94; K12.
Ano: 1996
URL: http://purl.umn.edu/10803

COOPERATIVE COORDINATION IN THE HOG-PORK SYSTEM: EXAMPLES FROM  EUROPE AND THE U.S.
Provedor de dados: 31
Autores: Schrader,   Lee F.; Boehlje,   Michael.
The traditional organization of the hog-pork subsector, characterized by independent hog production and open market coordination, is being challenged as never before.  Rapid growth of large, industrialized production firms with close ties to processors in non-traditional areas such as North Carolina and Colorado indicate the need for change in traditional systems in the Midwest if these producers and communities are to continue to participate in the hog- pork subsector.  Given that few, if any, traditional producers have the capital to attain minimum cost size for a complete production system that fully uses new more efficient technology, some means to coordinate production and marketing of a number of producers will be required.  Cooperative coordination...
Tipo: Working or Discussion Paper
Palavras-chave: Cooperative coordination; Hog-pork system; Industrialization; Food chain coordination; Alternative cooperative models; Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/28611

Environmental Policy, Technology Substitution, and Cross-Media Transfers
Provedor de dados: 31
Autores: Osei,   Edward; Babcock,   Bruce A.
We consider the implications of cross-media transfers for the analysis of environmental policy and technology substitution.  We discuss welfare implications from the standpoint of society and of the firm.  Society's solution is shown to lead to the least level of damage, output, and waste treatment costs.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental policy; Isopollution; Augmented isodamage; Isocost; Cross-media transfers; Technology substitution; Optimization; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/18361

Protection of the Environment in Transitional Economies: Strategies and Practices
Provedor de dados: 31
Autores: Tisdell,   Clement A.
Tipo: Working or Discussion Paper
Palavras-chave: Kuznets curve; Pollution; Centrally Planned Economies; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/53594

Economics of Integrated Catchment Management
Provedor de dados: 31
Autores: Marshall,   Graham R.; Wall,   Lisa M.; Jones,   Randall E.
Integrated Catchment Management (ICM) can be viewed as an institutional instrument designed to ameliorate losses of economic efficiency that have arisen due to incomplete specification of the privileges and restrictions attached to property rights. If applied appropriately ICM can facilitate the emergence of a market in which parties disadvantaged by incomplete specification attempt to bribe those advantaged, with the aim of obtaining the latter's agreement to more complete specification. The instrument provides potential for transactions costs of bargaining to be reduced substantially by reducing the number of parties eligible to participate in, and installing the state as broker and arbiter of, the bargaining process. Participation by sub-catchment...
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/12415

Impacts of Trade and Agricultural Policies on the World Malt and Malting Barley Market
Provedor de dados: 31
Autores: Satyanarayana,   Vidyashankara; Wilson,   William W.; Johnson,   D. Demcey; Dooley,   Frank J.
Tipo: Technical Report
Palavras-chave: Agricultural and Food Policy; International Relations/Trade; Marketing.
Ano: 1996
URL: http://purl.umn.edu/121042

END MATERIALS
Provedor de dados: 31
Includes:  Guidelines for Manuscript Submission and Back Cover
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/27777

Papers-40th Annual Conference AARES; Referees 1995
Provedor de dados: 31
Tipo: Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/121673

Strategic Alliance and Joint Venture Agreements in Grain Marketing Cooperatives
Provedor de dados: 31
Autores: Fulton,   Joan R.; Popp,   Michael P.; Gray,   Carolyn.
Strategic alliance and joint venture agreements are analyzed using the prisoners' dilemma and assurance problem models of game theory. Hypotheses regarding the factors contributing to the success/failure of the agreements are formulated. These hypotheses are confirmed with data from interviews with managers of grain marketing cooperatives in eastern Colorado. Our results suggest that joint venture and strategic alliance agreements represent an opportunity for local cooperatives to take advantage of size economies while maintaining their individual business identities. Successful agreements require not only attention to the financial and operational components but diligence in the interpersonal dynamics of trust, commitment, and open communication.
Tipo: Journal Article
Palavras-chave: Agribusiness; Marketing.
Ano: 1996
URL: http://purl.umn.edu/46187

The Feasibility of a Mid-Hudson Valley Wholesale Fresh Product Facility: A Buyer Assessment
Provedor de dados: 31
Autores: Kreider,   Craig Robert; McLaughlin,   Edward W.
Tipo: Technical Report
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/122829

The Economics of Fisheries Access Agreements: Perspectives on the EU-Senegal Case
Provedor de dados: 31
Autores: Johnstone,   Nick.
Relations between coastal countries and fishing fleets from non-adjacent countries changed radically in the 1970s and early 1980s. This was primarily a consequence of the declaration of exclusive economic zones (EEZs) by many coastal states in the years leading up to the close of the negotiations of the United Nations Convention on the Law of the Sea (UNCLOS) in 1982. Most significantly, by recognizing the right of coastal states to determine how their waters were to be exploited, the UNCLOS provided a legal basis and economic motivation for the negotiation of access agreements between coastal states and distant water fishing fleets. This paper examines some of the economic issues which arise out of such agreements, particularly as they relate to relations...
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/24143

ABSTRACTS OF SELECTED PAPERS
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/31405

Southern Africa: economic structure, trade, and regional integration
Provedor de dados: 31
Autores: Mukherjee,   Natasha; Robinson,   Sherman.
"October 1996." Includes bibliographical references (leaves 54-55).
Tipo: Working or Discussion Paper
Palavras-chave: Southern Africa; Mozambique -- Economic conditions; Social accounting -- Mathematical models; Southern Africa; Trade policy -- Africa; Sub-Saharan; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/97693

PUBLIC DELIBERATION'S ROLE IN INFORMING CITIZENS
Provedor de dados: 31
Autores: Matthews,   David.
Tipo: Conference Paper or Presentation
Palavras-chave: Public Economics.
Ano: 1996
URL: http://purl.umn.edu/17284

WIFE'S LABOR FORCE PARTICIPATION AND FAMILY EXPENDITURES FOR PREPARED FOOD, FOOD PREPARED AT HOME, AND FOOD AWAY FROM HOME
Provedor de dados: 31
Autores: Nayga,   Rodolfo M., Jr.
This study examines the effects of a wife's participation in the labor force and other socioeconomic factors on family expenditures for prepared food, food prepared at home, and food away from home using the Bureau of Labor Statistics 1992 consumer expenditure survey.  On the one hand, results indicate that the number of children, home ownership with mortgage, seasonality, region, wife's age, and income are important determinants of expenditures on food prepared at home.  A wife's education and participation in the labor force, on the other hand, affect expenditures on prepared food and food away from home.  The impact of both these factors is greater on food away from home than on prepared food expenditures.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/31400

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes:  Cover Page, Officers and Directors 1996-1997, Title Page, Contents Page
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/27071

Why Economists and Scientists Find Cooperation Costly
Provedor de dados: 31
Autores: Mullen,   John D.
Tipo: Journal Article
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/12407

Food Marketing and Pricing Policy in Eastern and Southern Africa: Lessons for Increasing Agricultural Productivity and Access to Food
Provedor de dados: 31
Autores: Jayne,   Thomas S.; Jones,   Stephen P.
This study surveys the empirical record of grain marketing and pricing policy in selected Eastern and Southern Africa countries. The paper addresses five key issues with major implications for food policy in Africa: (a) why the anticipated supply response to market liberalization has not yet occurred; (b) why the common assumption of state taxation of farmers to support a cheap food policy does not apply in most of these countries; (c) why the temporary successes of the state-led approach to stimulating smallholder grain production were unsustainable; (d) why the elimination of government food subsidies associated with market reform has not adversely affected consumers; and (e) why marketing board deficits have risen rather than declined after the reforms...
Tipo: Report
Palavras-chave: Food security; Food policy; Food marketing; Pricing policy; Food Security and Poverty; Marketing; Research and Development/Tech Change/Emerging Technologies; Downloads June 2008 - June 2009: 10; Q18.
Ano: 1996
URL: http://purl.umn.edu/54694

REFERENCE OF 1996 U.S. SHEEP HEALTH AND MANAGEMENT PRACTICES
Provedor de dados: 31
Autores: Wineland,   Nora.
In 1995, the National Animal Health Monitoring System (NAHMS) collaborated with the Research and Education Division of the American Sheep Industry Association (ASI) in developing a needs assessment tool to identify the most important health and productivity factors for the sheep industry. In collaboration with the USDA's National Agricultural Statistics Service (NASS), a statistically designed producer sample was selected to provide estimates for the United States sheep population in the 48 contiguous states. The NAHMS/ASI questionnaires were mailed to 19,807 sheep operations in January 1996; data were received and summarized from 5,174 respondents. It was estimated that in the 48 contiguous states, there were 82,040 operations with sheep as of 1995;...
Tipo: Report
Palavras-chave: NAHMS; Sheep; Health; Disease; Death; Morbidity; Mortality; Economics; Predators; Vaccinations; Antibiotics; Income; Worms; Reproduction; Profitability; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/32743

The Social Costs of Electricity: Do the Numbers Add Up?
Provedor de dados: 31
Autores: Krupnick,   Alan J.; Burtraw,   Dallas.
Several recent studies have mounted major efforts to estimate the social cost of electricity generation. This paper provides an overview of this literature and a focused qualitative and quantitative comparison of the most comprehensive and rigorous of these studies. The paper also provides a synthesis that can help reduce the cost of future applications of these methods.
Tipo: Working or Discussion Paper
Palavras-chave: Electricity; Environment; Health; Social costs; Adders; Externalities; Resource /Energy Economics and Policy; H23; L94; L98.
Ano: 1996
URL: http://purl.umn.edu/10856

WORLD TRADE ISSUES AND FOOD SECURITY
Provedor de dados: 31
Autores: Roe,   Terry L.; Gopinath,   Munisamy.
While economic growth has lifted more people from poverty than in any prior period, world market shocks of the 1970s and 1980s have caused a massive realignment in country policies, and future growth in population and income are expected to place heavy burdens on world resources.  Recently, it has been suggested that a food crisis may be forthcoming as food production per capita has stagnated, risking a reversal of the long-term decline in the real price of food.  This paper focuses on food security in this context, and concludes that a rise in the real price of food is likely, but not of a magnitude to create a food crisis.  Nevertheless, those already in poverty may be placed at additional risk of nutritional deprivation.  Policies for alleviating this...
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/14425

INDUCED INNOVATION AND LAND DEGRADATION IN DEVELOPING COUNTRY AGRICULTURE
Provedor de dados: 31
Autores: Coxhead,   Ian A.
With few exceptions, induced innovation theories give little consideration to the role of distortions or externalities as determinants of the commodity or factor biases of innovations demanded by farmers. Nor has the theory devoted much attention to the influence of technical progress, with or without distortions, on the sectoral structure of production. This analysis identifies the demand for innovations as a function of a specific policy setting which conditions and is in turn conditioned by the sectoral structure of production. In this context, when some sectors contribute more than others to land degradation and soil erosion externalities, the capacity for divergence between privately optimal and welfare- maximizing allocations of research resources...
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/12651

RESTAURANT AND SUPERMARKET LOBSTER PRICE PERCEPTIONS, RESPONSES, AND STRATEGIES
Provedor de dados: 31
Autores: Kezis,   Alan S.; Peavey,   Stephanie R.; Cheng,   Hsiang-Tai; Summers,   Jeffrey D.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics; Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/27780

Efficient choice among domestic and trade policies in the Grossman-Helpman Interest-Group Model
Provedor de dados: 31
Autores: Schleich,   Joachim; Orden,   David.
This paper generalizes the recent political economy model of Helpman and Grossman in which contributions by producer lobbies and government decisions about trade policies are modeled as a common agency game.  We allow the government to choose among domestic as well as trade interventions.  When production and trade policies are available, the equilibrium production policies serve the lobbies while the trade policies reflect the country's international market power.  When consumption and trade policies are available, tariffs and export subsidies are applied in a small-country model to serve the special interests, and the domestic policies are selected to restore consumer prices to world levels.  In a large-country model, the optimal consumption and trade...
Tipo: Working or Discussion Paper
Palavras-chave: Political economy; Trade policies; Domestic subsidies and taxes; Efficient policies; Common agency; International Relations/Trade; F11; F13.
Ano: 1996
URL: http://purl.umn.edu/7458

Assessing the Effectiveness of MPP Meat Advertising and Promotion in the Japanese Market
Provedor de dados: 31
Autores: Comeau,   Allison; Mittelhammer,   Ronald C.; Wahl,   Thomas I.
Tipo: Technical Report
Palavras-chave: Livestock Production/Industries; Marketing.
Ano: 1996
URL: http://purl.umn.edu/122992

The Problem of Maintaining Soil Fertility in Eastern Kenya: A Review of Relevant Research
Provedor de dados: 31
Autores: Simpson,   Jeffrey Randal; Okalebo,   John Robert; Lubulwa,   Godfrey.
Tipo: Report
Palavras-chave: Crop Production/Industries; Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/117193

EVALUATION OF NORTH DAKOTA FARM BUSINESS MANAGEMENT EDUCATION PROGRAM
Provedor de dados: 31
Autores: Johnson,   Roger G.; Swenson,   Andrew L.
Net farm income of participants in the North Dakota Farm Business Management Education Program increased with years of enrollment both in absolute terms and compared to peer group benchmarks.  Median net farm income increased $7,829 and $14,191 between the first and fifth year of enrollment for all farms in the program and a subset of farms with five consecutive years of records starting with the first year of enrollment, respectively.  Net farm income by year of program participation was compared to a benchmark median net farm income for the same geographic region, calendar year, and farm type in an attempt to isolate the affects of management from weather and other exogenous factors.  Net farm income as a percent of benchmark increased 17.5  percentage...
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/23220

The Transformation of Hungarian Production Cooperatives and Future Consequences
Provedor de dados: 31
Autores: Toth,   Erzsebet; Varga,   Gyula; Paarlberg,   Philip L.
This research examines the transformation of Hungarian agricultural production cooperatives. In contrast to early expectations, cooperatives did not experience much membership loss. Rather, the enterprises held together, although they downsized. The distribution of collective assets occurred quickly and created much tension. The sector experienced a severe decapitalization, and the efficiency of the sector fell. There was a sharp rise in unemployment. Sales and marketing were disrupted. Thus, the cooperatives transformed in a very hostile situation. They survived, and some prospered, yet, in general, they remain vulnerable to adverse economic developments. Healthy cooperatives will be vital to the success of smaller private farms.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/46185

RURAL-URBAN ECONOMIC LINKAGES FOR AGRICULTURE AND FOOD PROCESSING IN THE MONROE, LOUISIANA, FUNCTIONAL ECONOMIC AREA
Provedor de dados: 31
Autores: Hughes,   David W.; Litz,   Vaneska N.
An interregional input-output model of the Monroe, Louisiana, Functional economic area constructed with IMPLAN is used to assess economic linkages between a mall urban core and a surrounding rural periphery. The contribution of agriculture, especially in the rural periphery, to the urban core (Ouachita parish) economy is demonstrated. Also assessed is the possibility of using the core's food processing sector to facilitate periphery economic growth. While results demonstrated stronger rural-urban linkages than have been found in other regions, growth in the urban food processing industry as currently structured, did not imply rapid growth in the periphery.
Tipo: Journal Article
Palavras-chave: Economic linkages; Food processing; Functional Economic Area; IMPLAN; Interregional input-output model; Rural periphery; Urban core; Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/15110

Mozambique Food Security Success Story
Provedor de dados: 31
Autores: Tschirley,   David L.; Weber,   Michael T.
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty; Downloads July 2008-July 2009: 15.
Ano: 1996
URL: http://purl.umn.edu/11278

Buying Time: Real and Hypothetical Offers
Provedor de dados: 31
Autores: Smith,   V. Kerry; Mansfield,   Carol.
This paper provides the results of a field test of contingent valuation estimates within a willingness to accept framework. Using dichotomous choice questions in telephone mail-telephone interviews, we compare responses to real and hypothetical offers to survey respondents for the opportunity to spend time in a second set of interviews on an undisclosed topic. Five hundred and forty people were randomly split between the real and hypothetical treatments. Our findings indicate no significant differences between people's choices with real and hypothetical offers. Choice models indicate the size of the offer and income were significant determinants of respondents' decisions, and these models were not significantly different between real and hypothetical offers.
Tipo: Working or Discussion Paper
Palavras-chave: Contingent value; Real and hypothetical offer; Willingness to accept; Experiment; Institutional and Behavioral Economics; C93; D12; Q2.
Ano: 1996
URL: http://purl.umn.edu/10719

MARKETING ORDER SUSPENSIONS AND FRESH LEMON RETAIL-FOB MARGINS
Provedor de dados: 31
Autores: Richards,   Timothy J.; Kagan,   Albert; Mischen,   Pamela; Adu-Asamoah,   Richard.
In August 1994, the Secretary of Agriculture announced the termination of the marketing order and the association flow-to-market, or prorate, controls for fresh California and Arizona (CA/AZ) lemons. Lemon growers and handlers have expressed concern over the impact of this decision on retail-FOB margins. This study presents an econometric model of fresh lemon marketing margins that tests for the presence of buyer and seller market power during previous periods of marketing order suspension. The results show that buyer and, to a lesser extent, seller market power cause retail-FOB margins to widen during periods of prorate suspension.
Tipo: Journal Article
Palavras-chave: Conjectural variations; Lemons; Marketing order; Monopsony power; Retail-FOB margins; Marketing.
Ano: 1996
URL: http://purl.umn.edu/15114

Tropical Poultry into the 21st Century
Provedor de dados: 31
Autores: Domingo,   Dan T.
Tipo: Journal Article
Palavras-chave: Tropical Poultry Production; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/45595

The Competitiveness of Mexican and Caribbean Basin Horticultural Products in the U.S. Market
Provedor de dados: 31
Autores: Figueroa,   Enrique E.
Tipo: Working Paper
Palavras-chave: Crop Production/Industries; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/121181

MIDDLE EAST WATER CONFLICTS AND DIRECTIONS FOR CONFLICT RESOLUTION
Provedor de dados: 31
Autores: Wolf,   Aaron T.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/16376

NAREA AWARDS
Provedor de dados: 31
Awards:  Outstanding Master's Thesis Award    The Distinct Impact of Food Stamps on Food Spending: Comparing Evidence from Economic Theory, Policy Experiments, and Non-Linear Regression Methods, by Parke E. Wilde  Master's Thesis Award of Merit    Economic Analysis of Different Herbicide Treatment Recommendations for Groundwater Protection, by Wei Liu  Master's Thesis Award of Merit     Implications of Changing European Union Trade Policies on Latin America's Trade in Bananas, by Kleber Machado  Journal Article of the Year for 1995     Recreation Swimming Benefits of New Hampshire Lake Water Quality Policies, by Michael Needleman and Mary Jo Kealy  Honorary Life Member Award: Olan D. Forker  Distinguished Member Award:  Conrado "Bobby" Gempesaw II
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/31399

LAND RIGHTS AND INTRA-HOUSEHOLD EMPLOYMENT AND RESOURCE USE IN THE PERI-URBAN AREA OF BANJUL, THE GAMBIA
Provedor de dados: 31
Autores: Roth,   Michael J.; Carr,   Ben; Cochrane,   Jeffrey A.
As part of cooperative research program examining factor markets in peri-urban areas of The Gambia (Banjul and Serekunda) to see if they are constraining agricultural growth and employment, particularly in the horticultural subsector, the household production survey reported in this study assesses inter- and intrahousehold issues of market access and constraints to land-improving investment and productivity. Implemented in 1993, survey is highly disaggregated by plot, gender, enterprise, and type of employment.
Tipo: Working or Discussion Paper
Palavras-chave: Land tenure--Gambia--Banjul Region Vendors and purchasers--Gambia--Banjul Region Household production--Gambia Research methods Rural conditions--Gambia Rural off-farm employment--Gambia Income and wealth--Gambia Land markets--Gambia Tenure types; Traditional--Gambia Labor and Human Capital Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/12756

Demand for Food Commodities by Income Groups in Indonesia
Provedor de dados: 31
Autores: Jensen,   Helen H.; Manrique,   Justo.
An analysis of the structure of demand was performed on household data classified into income groups for urban Indonesia.  A demographically augmented Linearized Almost Ideal Demand System was used to estimate the structural parameters of the demand equations.  Endogenous switching regression techniques yielded unbiased and consistent demand parameter estimates for the low income group, which had a large number of zeros for some food groups.  Standard, seemingly unrelated, equation techniques were used to estimate the demand parameters for the other income groups.  The results showed demands for the medium-high and high income households to be responsive to prices, income, and demographic variables.  Demands for the medium-low income households were...
Tipo: Working or Discussion Paper
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/18523

COVER AND CONTENTS PAGES
Provedor de dados: 31
Includes: Cover, 1996 Officers and Directors, Title Page, Contents Page
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/27895

The Singapore Pork Market: a Preliminary Assessment of the Potential for Australian Exports
Provedor de dados: 31
Autores: Brewis-Weston,   Symon G.; Lewis,   Philip E.T.
Australian pig producers, facing a limited domestic market, need to make inroads into export markets. The predominantly Chinese city state of Singapore provides the potential to be a valuable source of demand. The distribution system in Singapore is considered from the perspective of a potential entrant. The potential for Australian producers to take advantage of the Singapore markets are examined, together with the likely impediments to achieving this potential.
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/12300

Strategic Alliances and Marketing Cooperatives: a Lamb Industry Case Study
Provedor de dados: 31
Autores: Farrell,   Terence C.; Tozer,   Peter R.
Producer cooperatives and strategic alliances could assist lamb producers and market efficiency by improving price signals through product grading. Opportunities exist for first and second cross lamb producers to achieve price premiums by forming intersectoral linkages with processors/wholesalers and retailers. Producer cooperatives enable producers to supply consistent quantities of high quality lambs to satisfy the market requirements of the wholesalers/retailers within an alliance. Alternatively, opportunistic lamb suppliers who are constrained by environmental or cost factors may not be able to derive similar price premiums.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/12413

On the Competitive Interaction Between Private Label and Branded Grocery Products
Provedor de dados: 31
Autores: Cotterill,   Ronald W.; Dhar,   Ravi; Putsis,   William P., Jr.
Recent research in marketing has focused on cross-category variation in the market share of private label products, while recent work in the economics and industrial organization literature has focused on the determinants of firm price setting behavior.  In this paper, the authors develop a framework for estimating market share and price reaction equations simultaneously in an attempt to understand the nature of competitive interaction in the market for private label and branded grocery products.  Empirical findings support the author's premise that consumer response to price and promotion decisions (demand) and the factors influencing firm pricing behavior (supply) jointly determine observed market prices and market shares.  More specifically, the authors...
Tipo: Working or Discussion Paper
Palavras-chave: Private labels; Pricing; Competitive strategy; Promotion; Demand and Price Analysis; Marketing.
Ano: 1996
URL: http://purl.umn.edu/25191

A CONTENT ANALYSIS OF THE AGRICULTURAL AND RESOURCE ECONOMICS REVIEW
Provedor de dados: 31
Autores: Gempesaw,   Conrado M., II; Albay,   Fe Zinnia.
A content analysis is conducted on the Agricultural and Resource Economics Review the official publication of the Northeastern Agricultural and Resource Economics Association, to determine whether the journal has maintained a strong regional focus and whether there has been a narrow concentration of published articles in subject area and methodology.  The results show that in the 1990s (1) the share of articles that do not focus on the Northeast has increased tremendously and (2) more articles used quantitative techniques than nonquantitative methods.
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/31402

THE 1996 FARM BILL: IMPACTS FOR CONSUMERS
Provedor de dados: 31
Autores: Schnittker,   John M.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/17291

Can Federal Action Improve Efficiency in the Market for Farm Loans?
Provedor de dados: 31
Autores: Collender,   Robert N.
Federal actions could improve efficiency and competition in the market for farm loans by lowering barriers to market entry and reducing market segmentation. Such actions might include changes to existing charters of Government-sponsored enterprises (GSE's), regulatory reforms affecting commercial banks and GSE's, and continued antitrust vigilance. Federal action may be justified because 93 percent of rural banking markets are still classified as noncompetitive despite past Federal action. Previous action improved efficiency by integrating isolated rural credit markets with national money markets and by promoting market innovation.
Tipo: Report
Palavras-chave: Agricultural Finance.
Ano: 1996
URL: http://purl.umn.edu/33673

Rural Utilities Service's Water and Waste Disposal Loan and Grant Program and its Contribution to Small Public Water System Improvements in New York State
Provedor de dados: 31
Autores: Schmit,   Todd M.; Boisvert,   Richard N.
TIrroughout the debate over re-authorization of the Safe Drinking Water Act (SDWA), it has been clear that members of both Houses of Congress are keenly aware of the financial burden facing the owners of small water systems in their efforts to comply with the 1986 and future amendments to the SDWA. The most reliable source of funds for drinking water and wastewater improvements for small systems has been the Water and Waste Disposal Loan and Grant Program administered through the Rural Utilities Service (RUS) of the USDA's Rural Development mission area. This report provides some background of the RUS loan and grant program. Specific attention is directed towards New York's Rural Development efforts where we develop small system cost models related to...
Tipo: Technical Report
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/122990

HOUSEHOLD BEHAVIOR WITH IMPERFECT LABOR MARKETS
Provedor de dados: 31
Autores: Sadoulet,   Elisabeth; de Janvry,   Alain; Benjamin,   Catherine.
A household model with differential asset endowments and idiosyncratic transactions costs in accessing labor markets is developed to (1) explain membership of farm households to alternative labor regimes (sellers, employers, or self-sufficient in labor), (2) test for recursivity between production and consumption decisions selectively by labor regime, and (3) identify the determinants of differential labor productivity across labor regimes.  The model is applied to a 1994 household survey of the Mexican land reform sector. (Forthcoming in the Journal of Industrial Relations)
Tipo: Working or Discussion Paper
Palavras-chave: Consumer/Household Economics; Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/25044

EFFECT OF LIBERALIZED U.S.-MEXICO DRY ONION TRADE: A SPATIAL AND INTERTEMPORAL EQUILIBRIUM ANALYSIS
Provedor de dados: 31
Autores: Fuller,   Stephen W.; Gillis,   Melanie; Ziari,   Houshmand A.
A spatial, intertemporal equilibrium model of the North American dry onion economy is constructed to analyze the impact of liberalized U.S.-Mexico trade. In a free-trade environment, exports of Mexican onions to the U.S. are projected to increase about 50%, while Mexico's share of the U.S. market increases from 8.7 to 12.8%. Farm-level prices in the U.S. are projected to decline 8.9%, while production declines 2.4%. The effect of free trade on U.S. producers is disproportional across regions. Northwest storage onion producers experience the greatest decline in production; however, analysis suggests that improved storage methods may offset a portion of the unfavorable impacts of onion producers; the industry would not be economically devastated.
Tipo: Journal Article
Palavras-chave: Dry onion; NAFTA; Spatial and intertemporal model; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/15222

ON SOME ASPECTS OF THE MANAGEMENT OF A STOCHASTICALLY DEVELOPING FOREST
Provedor de dados: 31
Autores: Batabyal,   Amitrajeet A.
In this paper I focus on some important biological aspects of the forest management problem. I model a stochastically developing forest as a multidimensional, continuous-time Markov chain. Next, I pose three questions concerning the long-run characteristics of a stationary forest, the stochastic process followed by dying species, and the age of an arbitrary species in the forest. I then (a) characterize a stationary forest probabilistically, (b) describe the stochastic process governing the demise of species in this forest, and (c) provide a method for determining the age of an arbitrary species in the forest. Finally, I discuss the forest management implications of the issues raised in this paper.  Note: Published in  Ecological Modelling 89(1-3,...
Tipo: Working or Discussion Paper
Palavras-chave: Forest; Management; Continuous-time Markov chain; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/28361

AN ECONOMIC TOOL FOR EVALUATING DISEASE MANAGEMENT IN THE JARRAH FORESTS OF WESTERN AUSTRALIA
Provedor de dados: 31
Autores: Dole,   David D.; Brennan,   Paul.
A pathogenic, soil-borne fungus has been gradually spreading through the jarrah forest of Western Australia for most of this century. On some sites this fungus can cause almost total forest destruction. Infection is incurable and the effects are irreversible. This paper develops a means for evaluating disease control measures and identifying the optimal level of protection. Standard protection measures are warranted for high and moderate impact sites, over a wide range of risks. Increased expenditure on forest protection is warranted for high and moderate impact sites at especially high risk.
Tipo: Journal Article
Palavras-chave: Research Methods/ Statistical Methods; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/22369

SWINE '95 PART II: REFERENCE OF 1995 U.S. GROWER/FINISHER HEALTH AND  MANAGEMENT PRACTICES
Provedor de dados: 31
Autores: Bush,   Eric J.
This report is the second of a three-part release of national information from the second National Animal Health Monitoring System (NAHMS) swine study, the Swine '95 Grower/Finisher. The 1990 National Swine Survey focused on farrowing sows and preweaning piglets. For the Swine '95 Study, the USDA's National Agricultural Statistics Service (NASS) collaborated with Veterinary Services (VS) to select a producer sample that was statistically designed to provide inferences to the nation's swine population. Data collected for the study represented the top 16 pork states and nearly 91 percent of the U.S. hog inventory, as well as nearly three fourths of the nation's pork producers. Data for this report were collected from 418 producers whose operations had 300 or...
Tipo: Report
Palavras-chave: NAHMS; Swine; Monitoring; Epidemiology; Production; Grower/finisher; Feed; Antibiotics; Waste management; Disease; Salmonella; Marketing; Slaughter; Biosecurity; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/32770

Advanced Telecommunications Technologies in Rural Communities: Factors Affecting Use
Provedor de dados: 31
Autores: Leistritz,   F. Larry; Allen,   John C.; Johnson,   Bruce B.; Olsen,   Duane; Sell,   Randall S.; Wanzek,   Janet K.; Bazubwabo,   Jean-Pierre.
Tipo: Technical Report
Palavras-chave: Community/Rural/Urban Development; Consumer/Household Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/120983

MULTIPLE-OBJECTIVE DECISION MAKING FOR AGROECOSYSTEM MANAGEMENT
Provedor de dados: 31
Autores: Prato,   Anthony A.; Fulcher,   Christopher L.; Wu,   Shunxiang; Ma,   Jian.
Multiple-objective decision making (MODEM) provides an effective framework for integrated resource assessment of agroecosystems.  Two elements of integrated assessment are discussed and illustrated: (1) adding noneconomic objectives as constraints in an optimization problem; and (2) evaluating tradeoffs among competing objectives using the efficiency frontier for objectives.  These elements are illustrated for a crop farm and watershed in northern Missouri.  An interactive, spatial decision support system (ISDSS) makes the MODEM framework accessible to unsophisticated users.  A conceptual ISDSS is presented that assesses the socioeconomic, environmental, and ecological consequences of alternative management plans for reducing soil erosion and nonpoint...
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/31409

The Economics of Generic Income Stabalization Schemes
Provedor de dados: 31
Autores: Chen,   Kevin Z.; Meilke,   Karl D.; Turvey,   Calum G.
Generic income stabilization schemes, which resemble an actual NISA policy adopted recently in Canada, encourage farmers to set aside funds in high income year for use in low income years through a formal procedure. Their economic effects are investigated using the prudent farm household model.  The effects of generic income stabilization schemes are hinged on the interaction between generic stabilization schemes and precautionary saving. It is also found that the designs of generic income stabilization schemes are fundamentally important for their potential supply effects. Conditions for characterizing various generic income stabilization schemes as either production neutral or decoupled are derived. Generic income stabilization scheme operated as a pure...
Tipo: Working Paper
Palavras-chave: Generic income stabilization; NISA; Prudent farm household model; Consumption; Production neutrality; Decoupled; And agricultural policy.; Financial Economics; Public Economics.
Ano: 1996
URL: http://purl.umn.edu/123558

A HEDONIC PRICE STUDY OF PESTICIDES IN FRUITS AND VEGETABLES; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Antonovitz,   Frances; Liu,   Donald J.
This study estimates a hedonic price equation to assess consumers' willingness-to-pay for reduction in pesticide residues in fifteen fruits and vegetables.  A unique feature of the study is its employment of the FDA's Total Diet Study  data which attempts to measure actual pesticide ingestion by the American public in table-ready or prepared foods.  The results indicate that consumers would be willing to pay approximately $.08 per pound to reduce pesticeds by one part per million in the prepared fruits and vegetables that they consume.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/14389

THE CHANGING WORK FORCE AND IMPLICATIONS FOR WORK AND FAMILY
Provedor de dados: 31
Autores: Williams,   Cali.
Tipo: Conference Paper or Presentation
Palavras-chave: Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/17277

Essential Oils of Tropical Asteromyrtus Callistemon and Melaleuca Species - In Search of Interesting Oils with Commercial Potential
Provedor de dados: 31
Autores: Brophy,   J.J.; Doran,   J.C.
Tipo: Report
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/118035

SMALL FARMS AND SUSTAINABLE DEVELOPMENT: IS SMALL MORE SUSTAINABLE?
Provedor de dados: 31
Autores: D'Souza,   Gerard E.; Ikerd,   John E.
A new, post-industrial, paradigm for agriculture is emerging under the concept of sustainable agriculture. The sustainability paradigm has emerged to solve problems created by the industrial model, primarily environmental pollution and resource base degradation. The role of farm size in this transformation to a more sustainable agriculture is the issue addressed. Using a descriptive approach, and relying on a survey of the literature including emerging paradigms and observations, we conclude that, from a sustainability perspective, the smallest effective size will be the most competitive size for farms, as for other knowledge-based enterprises of the future.
Tipo: Journal Article
Palavras-chave: Agriculture; Farm size; Paradigms; Sustainability; Environmental Economics and Policy; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/15243

PECAN PRODUCTION AND PRICE TRENDS 1979-1995
Provedor de dados: 31
Autores: Shafer,   Carl E.
Pecan production, stocks, trade and prices are described.  Data on tree nuts believed to compete with pecans are also presented.  Pecan production and prices became more volatile in the early 1990's.  Prices reached exceptionally high levels during five of the six years 1990-1995.  US pecan imports have increased significantly since the mid-1980's and clearly exceed exports.  Production, cold storage stocks, and inflation explained most of the year-to-year changes in season average pecan price levels in recent years.
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/24019

Who's in the Driver's Seat? Mobile Source Policy in the U.S. Federal System
Provedor de dados: 31
Autores: Harrington,   Winston; McConnell,   Virginia D.; Walls,   Margaret.
Regulation of mobile source emissions in the US has evolved as a complex combination of central government and decentralized authority. The central government required uniform new car emissions standards in the 1970 Clean Air Act, but gave states the power to meet ambient air quality standards however they saw fit, including various regulations on mobile sources. The 1990 Amendments to the Act strengthened the Federal role in some ways, by requiring tighter new car standards and more specific requirements for fuels and for vehicle emissions inspection and maintenance, but at the same time left states with a great deal of latitude to meet ambient standards and took greater recognition of regional variation in environmental problems. We examine the role of...
Tipo: Working or Discussion Paper
Palavras-chave: Mobile source; Federalism; Public Economics; Q25; Q28.
Ano: 1996
URL: http://purl.umn.edu/10636

Analysis of Racquet Club fresh-peeled citrus test
Provedor de dados: 31
Autores: Irwin,   Stephen R.
Tipo: Report
Palavras-chave: Agribusiness; Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/52812

Okonomische Analyse der geplanten EU-Richtlinie zur integrierten Vermeidung und Verminderung von Umweltverschmutzung
Provedor de dados: 31
Autores: Karl,   Helmut; Orwat,   Carsten.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/18784

PRESIDENTS, 1955-96; EDITORS OF THE ARER, 1972-96 (NAREA)
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/31396

All it takes is confidence: job search confidence and farm workers' wages, benefits, and working conditions
Provedor de dados: 31
Autores: Gabbard,   Susan M.; Perloff,   Jeffrey M.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural labor; Agricultural wages; Employment; Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/47280

An Economic and Institutional Analysis of Maize Research in Kenya
Provedor de dados: 31
Autores: Karanja,   Daniel David.
Maize, the most important food crop in Kenya, contributes 44 percent of the per-capita, calorie intake. Increases in maize production over the past three decades have been attributed to the availability and adoption of modern maize techniques, especially fertilizer and hybrid seed. This paper estimates the rate of return to maize research to be 53 to 61 percent, and reveals that his impact was aided by complementary agricultural extension and seed multiplication and distribution programs. The paper describes the institutional framework that may have led to one of Kenya’s agricultural research success stories. It also poses challenges to the future of maize production in Kenya.
Tipo: Report
Palavras-chave: Food security; Food policy; Maize; Crop Production/Industries; Research and Development/Tech Change/Emerging Technologies; Downloads July 2008 - July 2009: 19; O18.
Ano: 1996
URL: http://purl.umn.edu/54693

ENERGY SUPPLEMENTATION STRATEGIES FOR WHEAT PASTURE STOCKER CATTLE UNDER UNCERTAIN FORAGE AVAILABILITY
Provedor de dados: 31
Autores: Coulibaly,   Nouhoun; Bernardo,   Daniel J.; Horn,   Gerald W.
Energy supplementation provides a means of reducing production risk of growing stocker cattle on winter wheat pasture. This study addresses the issue of risk aversion and energy supplement input use. Differences in supplementation practices induced by risk aversion and the effects of cattle and feed market conditions are examined. Results show that supplementation practices are likely to be similar across producers, irrespective of their risk attitudes. Cattle and feed market conditions, however, markedly affect supplementation practices. These findings provide information for assisting stockmen in identifying efficient supplement strategies.
Tipo: Journal Article
Palavras-chave: Risk; Wheat pasture grazing; Numerical integration; Energy supplementation; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/15244

REFLECTIONS ON AGRARIAN REFORM AND CAPACITY BUILDING IN SOUTH AFRICA
Provedor de dados: 31
Autores: Eicher,   Carl K.; Rukuni,   Mandivamba.
No abstract available.
Tipo: Working or Discussion Paper
Palavras-chave: Institutional and Behavioral Economics.
Ano: 1996
URL: http://purl.umn.edu/11703

A plot of one's own: gender relations and irrigated land allocation policies in Burkina Faso
Provedor de dados: 31
Autores: Zwarteveen,   Margreet Z.
Discusses the potential opportunities and pitfalls of introducing market forces into the process of water allocation. Proposes several preconditions for beneficial privatization of water allocation and argues for a more sophisticated form of analysis than that generally allowed by proponents of basic needs or of free market approaches.
Tipo: Report
Palavras-chave: Women in development; Gender; Land use; Land management; Policy; Female labor; Households; Irrigated farming; Social impact; West Africa; Burkina Faso; Dakiri; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Land Economics/Use; Political Economy; Productivity Analysis; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/61114

The Determinants of Dairy Farm Location
Provedor de dados: 31
Autores: Osei,   Edward; Lakshminarayan,   P.G.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18472

The Simple Analytics of Transferable Production Quota: Implications for the Marginal Cost of Ontario Milk Production
Provedor de dados: 31
Autores: Chen,   Kevin Z.; Meilke,   Karl D.
Using the fact that separate markets exist for used and unused quota, this paper derives a formula to compute the marginal cost of the milk production using a competitive dynamic optimization model. It is showed that, under a perfect competitive quota market, the difference between unused quota and used quota prices gives an exact measure of rental value of quota and thus marginal cost. Policy risk is showed to have no effect on the calculation of equilibrium rental value of quota. The formula is modified to allow for the presence of a transfer assessment. It is showed that the effect of transfer assessment on the calculation of equilibrium rental value of quota depends on the elasticities of demand and supply for quota as well as the level of the transfer...
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/24127

OUTGOING EDITOR'S REPORT
Provedor de dados: 31
Autores: Debertin,   David L.; Pagoulatos,   Angelos; Bobst,   Barry W.
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/15227

Principles of Grain Marketing: Some Lessons from Australian Experience
Provedor de dados: 31
Autores: Watson,   Alistair S.
Tipo: Report
Palavras-chave: Crop Production/Industries; Marketing.
Ano: 1996
URL: http://purl.umn.edu/113821

On Turkey's European Trade Policy: How Desirable is a Status Quo
Provedor de dados: 31
Autores: Mercenier,   Jean; Yeldan,   A. Erinc.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/50865

DYNAMIC PORTFOLIO MANAGEMENT UNDER RISK AND SUBSISTENCE CONSTRAINTS IN DEVELOPING COUNTRIES
Provedor de dados: 31
Autores: Zimmerman,   Frederic; Carter,   Michael R.
This paper presents a model that endogenizes asset-based risk- coping in an environment of unmediated risk and subsistence constraints. It uses an individually-rational, stochastic dynamic programming model to explore intertemporal portfolio decisions in an environment in which both yield risk and endogenous asses-price risk exist. The results show that agents pursue one the three distinct investment strategies, depending on their initial wealth levels. Agents who are too poor to support subsistence at a sustainable level eventually stock out, driving their asset base to zero. Agents who have more than a certain threshold level of highly productive assets continue to accumulate those assets.  Agents who fall somewhere in between, with an intermediate level...
Tipo: Working or Discussion Paper
Palavras-chave: Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/12649

Labour Market Signals and Indicators
Provedor de dados: 31
Autores: Gray,   Lynton; Warrender,   Ann-Marie; Davis,   P.; Hurley,   G.; Manton,   C.
Tipo: Working or Discussion Paper
Palavras-chave: Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/12860

Debt Covenant Violations of Private Lending Agreements of Agricultural Cooperatives
Provedor de dados: 31
Autores: Messina,   Frank Michael.
Seven years of debt covenant violations of private lending agreements of eighty-three agricultural cooperatives were examined. A LOGIT prediction model of debt covenant violations was developed and the factors that affect debt covenant violations were identified. These factors include cooperative size, working capital, the quick ratio, the existence of a management compensation plan, the tax-exempt status of the cooperative, a bank rating, and the current amount of loan payments.
Tipo: Journal Article
Palavras-chave: Agribusiness; Agricultural Finance.
Ano: 1996
URL: http://purl.umn.edu/46189

Changes in Canadian Agricultural Marketing and Trade Policy: The Impacts of New Trade Rules and New Institutions
Provedor de dados: 31
Autores: Veeman,   Michele M.
The Canada-United States Free Trade Agreement (CUSTA) and the subsequent North American Free Trade Agreement (NAFTA) have contributed to increasing concentration of agricultural trade between the United States and Canada. This has heightened bilateral trade tensions and trade conflicts for numbers of Canadian farm products. These conflicts, and the need to accommodate domestic marketing policies to the obligations of the General Agreement on Tariffs and Trade (GATT) and its successor, the World Trade Organization (WTO), have encouraged changes in Canadian agricultural marketing policies. Pressures to reduce government expenditures have also provided a compelling reinforcing impetus to changes in numbers of Canada's agricultural marketing programs. However,...
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/12362

Rural Finance Policies for Food Security of the Poor: Methodologies for a Multicountry Research Project
Provedor de dados: 31
Autores: Zeller,   Manfred; Ahmed,   Akhter U.; Babu,   Suresh Chandra; Broca,   Sumiter; Diagne,   Aliou; Sharma,   Manohar P.
The objective of IFPRI's multicountry research program on rural financial policies for food security of the poor is to identify policies and institutional arrangements that help the poor integrate themselves into sustainable savings and credit systems such that they have an increased capacity to invest, bear risk, and smooth consumption. The focus of the research on policy and program design and their effects on household investment and consumption requires field data collection at the institutional and household level. This paper presents the underlying conceptual framework and various methodological approaches that have been reviewed and tested by the team at IFPRI and at collaborating institutions. Methodologies are presented for analysis at the...
Tipo: Working or Discussion Paper
Palavras-chave: Food Security; Developing Countries; Financial Institutions; Households; Economic Aspects; Financial Economics; Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/97308

END MATERIALS
Provedor de dados: 31
Includes:  Guidelines for Manuscript Submission and Back Cover
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/27072

RESULTS OF THE NASULGC'S NATIONAL SYNTHESIS CONFERENCE IN RELATION TO THE OVERALL LAND GRANT UNIVERSITY METAMORPHOSIS
Provedor de dados: 31
Autores: Bonnen,   James T.
Tipo: Working or Discussion Paper
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/11529

Bargaining over governments in a stochastic environment
Provedor de dados: 31
Autores: Merlo,   Antonio.
In this paper we structurally estimate a game-theoretic model of government formation in a multiparty parliamentary democracy.  We focus on the timing and the terms of government agreements in the context of a multilateral stochastic model of sequential bargaining with complete information (Merlo and Wilson (1194, 1995)) where efficient delays may occur in the unique equilibrium.  Besides showing that our model yields a good fit to the data on the duration of negotiations over government formation as well as government durations in postwar Italy, we use our estimates to quantify the advantage to proposing and to conduct policy experiments to evaluate the effects of changes in the bargaining procedure.  We show that the gains from proposing tend to be quite...
Tipo: Working or Discussion Paper
Palavras-chave: Noncooperative bargaining; Delay; Government formation; Structural estimation; Duration models.; Political Economy; C41; C51; C73; C78; D72.
Ano: 1996
URL: http://purl.umn.edu/7476

International Treaties and Other Legal and Economic Issues Relating to the Ownership and Use of Genetic Resources
Provedor de dados: 31
Autores: Lesser,   William H.
Genetic resources were once treated as a common heritage, available without restriction for research and other usage. The system was perceived as contributing to a rapid extinction rate and as unfair to developing countries -the major source of genetic resources. Since the Biodiversity Convention declared that governments have the "sovereign right to exploit" the genetic resources under their domain, efforts to regulate access have begun. Conceptually, payments will lead to greater conservation efforts; practically, the incentive will depend on use and distribution of the limited funds generated. Benefits to countries of origin are associated with the "equitable sharing" stipulations of the Convention. Within countries, where rights of indigenous peoples...
Tipo: Working Paper
Palavras-chave: International Relations/Trade; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/121184

CONSUMER USE OF NUTRITION LABELS ON PACKAGED MEATS
Provedor de dados: 31
Autores: Piedra,   Mario A.; Schupp,   Alvin R.; Montgomery,   Donna E.
Consumer perceptions of the importance of nutritional labeling of fresh meats and knowledge of nutritional terms have been presented in the Journal of Food Distribution Research (Piedra, et al 1995). This article presents follow up information on consumer reported uses of nutritional labels on packaged meats and the specific nutrients that the consumers check for on packaged meats. The results indicate that consumers use nutrition labels to check for desirable dietary components and to compare nutrient content among meats as well as to check for the presence of undesirable dietary components in packaged meats.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/27069

Alternative approaches to cost sharing for water service to agriculture in Egypt.
Provedor de dados: 31
Autores: Perry,   Christopher J.
Combines and interprets results from a number of studies that were designed to help the Egyptian government formulate a rational approach to sharing the costs of water services among the beneficiaries-agriculture and other users-and government. Highlights lessons transferable to other countries.
Tipo: Report
Palavras-chave: Farmer managed irrigation systems; Small scale systems; Resource management; Farmer participation; Evaluation; Rehabilitation; Farmer-agency interactions; Demand and Price Analysis; Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/52729

A Statistical Analysis of the North Dakota Lignite Industry's Contribution to the State Economy for 1995 and Projected for 1996
Provedor de dados: 31
Autores: Coon,   Randal C.; Leistritz,   F. Larry.
Tipo: Technical Report
Palavras-chave: Land Economics/Use; Public Economics.
Ano: 1996
URL: http://purl.umn.edu/120988

The Economics of Soil Erosion: A Model of Farm Decision-Making
Provedor de dados: 31
Autores: Eaton,   Derek J.F.
Soil erosion is widely considered to be a serious threat to the long-term viability of agriculture in many parts of the world. The problem is particularly serious in certain developing countries. This paper examines key factors affecting smallholder farmers, decisions about soil depletion and conservation. The analysis focuses exclusively on the on-site productivity losses due to soil erosion in an attempt to understand farmer behaviour, thus ignoring any externality effects or off-site costs. The physical processes of soil erosion are described and its economic effects are reviewed, drawing on theoretical and empirical studies to date. Contrary to arguments that farmers are not aware of the extent and effects of erosion, an economic rationale for them to...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/24134

Sources of Financial Stress in Agricultural Cooperatives
Provedor de dados: 31
Autores: Moller,   Lynn G.; Featherstone,   Allen M.; Barton,   David G.
Financial stress in agricultural cooperatives may be due to a combination of three factors: inadequate profitability, excessive debt, or high interest rates. This paper uses an analytical technique to determine the relative degree of financial stress in agricultural cooperatives attributable to each factor. Roughly 30 percent of agricultural cooperatives in our sample suffered financial stress from 1987 through 1992. The analysis indicates that the greatest portion of financial stress, 54 percent, originated from low earnings. High interest rates accounted for roughly 24 percent of the financial stress while leverage accounts for the remaining 22 percent. The results also indicate that smaller cooperatives are more than twice as likely to face financial...
Tipo: Journal Article
Palavras-chave: Agribusiness; Agricultural Finance.
Ano: 1996
URL: http://purl.umn.edu/46190

Symmetry Problem in the Linear AIDS Model: Further Results
Provedor de dados: 31
Autores: Chen,   Kevin Z.
This paper derives a set of linear and nonlinear restrictions to make a n-goods linear AIDS symmetric when all prices are allowed to vary. When prices are scaled by their means, the conventional restrictions are sufficient to make the linear AIDS symmetric at mean. This indicates an additional advantage of scaling prices at their means before estimation. Nevertheless, price-scaling does not produce a globally-symmetric linear AIDS. When prices are measured in natural units, additional nonlinear restrictions are needed to make the linear AIDS globally symmetric. These restrictions can be imposed with relative ease but convert the linear AIDS into the nonlinear one. The significance of the problem was illustrated using both the US and Canada meat consumption...
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/24080

AN INTRODUCTION TO SYSTEMATIC SENSITIVITY ANALYSIS VIA GAUSSIAN QUADRATURE
Provedor de dados: 31
Autores: Arndt,   Channing.
Economists recognize that results from simulation models are dependent, sometimes highly dependent, on values employed for critical exogenous variables.   To account for this, analysts sometimes conduct sensitivity analysis with respect to key exogenous variables.   This paper presents a practical approach for conducting systematic sensitivity analysis, called Gaussian quadrature.   The approach views key exogenous variables as random variables with associated distributions. It produces estimates of means and standard deviations of model results while requiring a limited number of solves of the model. Under mild conditions, all of which hold with respect to the GTAP model, there is strong reason to believe that the estimates of means and standard...
Tipo: Working or Discussion Paper
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/28709

LOUISIANA RURAL LAND VALUES AND TENURE ARRANGEMENTS
Provedor de dados: 31
Autores: Henning,   Steven A.; Vandeveer,   Lonnie R.; Kennedy,   Gary A.; Green,   Shane.
Rural land comprises 77 percent of Louisiana's total land acreage, with a wide diversity of physical characteristics and use. Therefore, reliable rural real estate market information is expected to be of value to landowners, investors, borrowers, lenders, realtors, appraisers, public taxing authorities, and policy makers.  This report presents the results from the second annual Louisiana Rural Land Market Survey. Results of this study suggest that land values vary by area of the state and the primary commodity grown on the tract. Substantial variation in land value within areas and by parish suggests a number of factors affect rural land values and markets.
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/31676

Contents Pages
Provedor de dados: 31
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/12414

SELECTED PAPERS ABSTRACTS, ANNUAL MEETINGS, SAEA, GREENSBORO, NORTH CAROLINA, FEBRUARY 1996
Provedor de dados: 31
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/15251

EXPLORING THE ROLE OF MENTORING IN AGRICULTURAL ECONOMICS PH.D. TRAINING
Provedor de dados: 31
Autores: Perry,   Gregory M.
Mentoring is used in many fields to prepare graduate students for a professional career. This study focuses on mentoring of Ph.D. students in agricultural economics, including the effects of mentoring on expected research output and students’' satisfaction with time spent with their major professor. The sink-or-swim mentoring method seems to create the most discord among students and also negatively influences expected research output. The student’s' gender and citizenship seem to also impact expected output.
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/30987

GENERIC ADVERTISING WEAROUT: THE CASE OF THE NEW YORK CITY FLUID MILK CAMPAIGN
Provedor de dados: 31
Autores: Reberte,   J. Carlos; Kaiser,   Harry M.; Lenz,   John E.; Forker,   Olan D.
This article examines two major generic fluid milk advertising campaigns in New York City during the 1986-92 period. Estimates from a time-varying parameter model show that the evolution of the impact of generic advertising on fluid milk sales over each campaign followed a bell-shaped pattern. Results also show that the first campaign was effective for twice as long as the second campaign and that it has a higher peak and higher average advertising elasticity. These findings may reflect long-term generic milk advertising wearout in the New York City market.
Tipo: Journal Article
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/31033

How Would Rural Areas Fare Under Block Grants?
Provedor de dados: 31
Autores: Reeder,   Richard J.
Current proposals would convert many domestic assistance programs into Federal block grants to be administered by State governments. Block grants give States broad discretion on how Federal funds are spent. In theory, this can lead to program improvements, reduced administration costs, and lower Federal deficits. Research on past block grants, however, indicates that block grants have had mixed success in achieving these goals. Block grants can also create inefficiencies and overlook national objectives, such as assisting poor communities. Whether or not block grants are adopted, rural communities will fare better if aid formulas and delivery systems account for rural-urban differences.
Tipo: Report
Palavras-chave: Community/Rural/Urban Development; Public Economics.
Ano: 1996
URL: http://purl.umn.edu/33609

Disaggregated Welfare Effects of Agricultural Price Policies in Urban Indonesia
Provedor de dados: 31
Autores: Manrique,   Justo; Jensen,   Helen H.
The government of Indonesia, like many governments in developing countries, has intervened in food markets to control an stabilize food prices.  And recently, the government has had to reduce input and food subsidies due to an increasing fiscal deficit.  The resulting food price increases have had effects on consumers that differ among income groups.  This paper develops a theoretically consistence methodology to measure changes in different income groups' welfare cause by the adoption of alternative food pricing policies.  Households were classified according to expenditure behavior.  We obtained estimates of demand parameters for each income class using Indonesian household level expenditure survey data, and evaluated welfare changes from the estimated...
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/18577

THE PATTERN OF AGRICULTURAL PRICE DISTORTIONS IN CENTRAL AND EASTERN EUROPE, AN UPDATE: 1990-1995
Provedor de dados: 31
Autores: Bojnec,   Stefan; Swinnen,   Johan F.M.
Nominal and adjusted protection rates for nine agricultural commodities in seven Central European and three Baltic states are estimated for the transition period 1990-1995.  Our estimates indicate that agricultural and food price distortions differ strongly between Central and East European countries, between commodities, and varied over time.  The average level of price distortions decreased in 1991 and 1992 after price and trade liberalization, but increased again in 1993 as many of these countries re-introduced protectionist price and trade policy measures.  Since 1994, the average level of price distortions has declined again. Accounting for exchange rate policy effects further reduces estimates of protection of agricultural producers.
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/31874

END MATERIALS
Provedor de dados: 31
Includes:  Guidelines for Submitting Manuscripts; Membership Information; Back Cover
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/30988

SUBDISCIPLINE-SPECIFIC JOURNAL RANKINGS IN ECONOMICS
Provedor de dados: 31
Autores: Barrett,   Christopher B.; Olia,   Aliakbar; Bailey,   DeeVon.
Tipo: Working or Discussion Paper
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/28346

THE U.S. DAIRY INDUSTRY
Provedor de dados: 31
Autores: Stillman,   Richard; Blayney,   Donald P.; Miller,   James J.; Crawford,   Terry L.
Tipo: Conference Paper or Presentation
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/16951

FADS VERSUS FUNDAMENTALS IN FARMLAND PRICES
Provedor de dados: 31
Autores: Falk,   Barry; Lee,   Bong-Soo.
This paper develops an approach to decompose farmland price time series into three components: permanent fundamental component, temporary fundamental component, and nonfundamental component.  This decomposition is useful for studying the importance of fundamental versus nonfundamental factors in explaining farmland price behavior and the dynamic response of farmland price to shocks to each of these components, among other issues.  The approach is applied to annual Iowa farmland prices over the 1992-1994 sample period. Note:  Tables and figures are NOT included in the machine readable copy of Staff Paper 281.  Contact the author for copies.
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/18248

FACTORS AFFECTING U.S. DEMAND FOR REDUCED-FAT FLUID MILK
Provedor de dados: 31
Autores: Gould,   Brian W.
U.S. fluid milk consumption has changed dramatically since the early 1970s. Whole milk accounted for over 81% of commercial fluid milk disappearance in 1970. By 1993, this percentage was less than 39%. A three-equation fluid milk demand system is estimated for fluid milks that vary by fat content. The household panel data set used includes over 4,300 households that recorded fluid milk purchased for at-home consumption over a 12-month period. Given that many of these households did not consume one or more of the three milk types, the econometric model explicitly incorporates the censored nature of these commodity demands. Own- and cross-price and substitution estimated along with effects of household demographic characteristics.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/30998

THYSS TOWN SIMULATION
Provedor de dados: 31
Autores: Lange,   Luane J.; Kelsey,   Timothy W.
Tipo: Conference Paper or Presentation
Palavras-chave: Public Economics.
Ano: 1996
URL: http://purl.umn.edu/17288

THE NATIONAL RESEARCH COUNCIL REPORT ON THE COLLEGES OF AGRICULTURE AT THE LAND GRANT UNIVERSITIES: IMPLICATIONS FOR THE NORTHEAST
Provedor de dados: 31
Autores: Ballenger,   Nicole.
The National Research Council report entitled Colleges of Agriculture at the Land Grant Universities: Public Service and Public Policy was released in spring 1996.  Several of the study recommendations may be particularly pertinent and interesting to the land grant colleges of the Northeast.  This article reviews the study background, process, and general conclusions.  It highlights several specific recommendations of potential interest in the Northeast, including those relating to federal support through formula funds and competitive grants, regionalization of programs, and integrating and balancing teaching, research, and extension.
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/31406

CHANGES IN RETAIL FOOD DELIVERY: SIGNALS FOR PRODUCERS, PROCESSORS AND DISTRIBUTORS
Provedor de dados: 31
Autores: Kinsey,   Jean D.; Senauer,   Benjamin; King,   Robert P.; Phumpiu,   Paul F.
This paper contains two chapters related to changes in retail food delivery  and sales.  The first discusses trends in consumer demographics and lifestyles and how these continue to drive changes in the way food is prepared and delivered to consumers.  Retail stores are responding with new formats: providing more ready to eat foods; more convenient store layouts; lower prices and better service in niche markets across the country.  Their demands send signals up the food chain to processors and producers that alter their production and inventory decisions.  Electronic information technology speeds these changes and leads to more efficient operation with, allegedly, better service for consumers.  The second chapter discusses how advances in information...
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; Industrial Organization.
Ano: 1996
URL: http://purl.umn.edu/14352

THE ROLE OF ECONOMIC ANALYSIS IN LOCAL GOVERNMENT DECISIONS: THE CASE OF SOLID WASTE MANAGEMENT
Provedor de dados: 31
Autores: Halstead,   John M.; Park,   William M.
The issue of solid waste management has risen to national prominence in the last decade, fueled by increasing waste disposal costs and changing public attitudes.  This situation presents a major opportunity for economists to use their applied microeconomics skills to assist state and local governments manage waste in a cost effective fashion.  While findings from formal research efforts may ultimately make their way into the decision-making process, perhaps economists can play an even more significant role in emphasizing the importance of the most basic economic concepts and principles for sound decision making in solid waste management or the many other areas in which local public choices are made.  These areas would include at least the following:...
Tipo: Journal Article
Palavras-chave: Public Economics.
Ano: 1996
URL: http://purl.umn.edu/31650

Action Research Report on Reflect: Regenerated Freirean Literacy Through Empowering Community Techniques; The Experiences of Three Reflect Pilot Projects in Uganda, Bangladesh, El Salvador
Provedor de dados: 31
Autores: Archer,   David W.; Cottingham,   Sara.
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/12861

Repayment Performance in Group-based Credit Programs in Bangladesh: An Empirical Analysis
Provedor de dados: 31
Autores: Sharma,   Manohar P.; Zeller,   Manfred.
This paper analyzes the repayment rates of credit groups belonging to three group-based credit programs in Bangladesh: the Association for Social Advancement (ASA), the Bangladesh Rural Advancement Committee (BRAC), and the Rangpur Dinajpur Rural Service (RDRS). Hypotheses are drawn from economic theory relating group responsibility, and the resulting monitoring by peers, to a more effective enforcement of contractual obligations as well as to improved ability of the group as a whole to repay loans. Specific tests are performed on the following hypothesized determinants: group size, size of loans, degree of loan rationing, enterprise mix within groups, demographic characteristics, social ties and status, and occurrence of idiosyncratic shocks. Analysis is...
Tipo: Working or Discussion Paper
Palavras-chave: Credit; Research; Methodology; Bangladesh; Financial Economics.
Ano: 1996
URL: http://purl.umn.edu/97302

LIBERALIZATION AND CAPITAL ACCUMULATION IN THE GTAP MODEL
Provedor de dados: 31
Autores: Nordstrom,   Hakan; Francois,   Joseph F.; McDonald,   Bradley.
This paper explores trade policy and investment linkages in the GTAP model. This is done under alternative steady-state closure rules linking trade to consumption, production, and investment, and emphasizing the general equilibrium nature of capital accumulation mechanisms.   When policy shocks are capital friendly, induced investment may be greater than suggested by current savings rates. As a result, multiplier-type analysis can be very misleading.   The importance and direction of this magnification hinges critically on the sensitivity of savings rates with respect to real returns. As illustration, we offer a numerical assessment of the Uruguay Round, highlighting such linkages.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/28711

A Reexamination of Price Dynamics in the International Wheat Market
Provedor de dados: 31
Autores: Mohanty,   Samarendu; Meyers,   William H.; Smith,   Darnell B.
This paper examines price relationships in the international wheat market using a cointegration and error correction approach. Price series are found to be first difference stationary and cointegrated. Our results provide evidence that the United States, Australia, the European Union, and Argentina react to Canada's pricing decisions whereas Canada does not respond to any other price changes except Australia's. Similarly, the United States also plays a strong role in the pricing of other exporters (except Canada) and its U.S. pricing decision is affected by changes in Canadian and Australian prices. The remaining exporters such as the European Union and Argentina respond to the U.S. and Canadian price changes but do not have any influence on other prices....
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/18354

TOURISM AND RETIREMENT MIGRATION
Provedor de dados: 31
Autores: Stallmann,   Judith I.; Espinoza,   Maria-Cristina.
Anecdotes suggest that tourism may play a role in the decision of retirees to migrate.  This paper reviews the literature to determining if research supports the anecdotal evidence.  Much of the literature on retiree migration only superficially addresses this issue, and thus cannot be viewed as definitive.  This literature does not suggest a strong link between tourism and later migration decisions.  There is a small body of research that directly specifically addresses this issue.  This research is carefully designed, based on a migration decision-making framework.  It does show that tourism experiences have an impact at several stages in the decision process.  Tourism experiences are used both to identify and eliminate potential locations.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/23973

U.S.-CANADIAN DAIRY TRADE TENSIONS: THE NATURE AND EFFECTS OF CANADIAN DAIRY POLICY
Provedor de dados: 31
Autores: Veeman,   Michele M.; Saint-Louis,   Robert.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16948

DEMAND AND QUALITY UNCERTAINTY IN PECAN PURCHASING DECISIONS
Provedor de dados: 31
Autores: Park,   Timothy A.; Florkowski,   Wojciech J.
Fixed search costs associated with locating and purchasing pecans invalidate the Tobit model.  Factors such as perceived quality, ease of purchase, and familiarity with marketing outlets influence the fixed costs of pecan purchases.  These factors have differing impacts on the probability of purchasing and the amount purchased based on the Heckman model.  Failure to apply self-selectivity corrections produces misleading assessments of key variables influencing pecan purchases.  (Missing tables 1,2,3)
Tipo: Working or Discussion Paper
Palavras-chave: Pecan demand; Consumer quality expectations; Heckman model; Demand and Price Analysis; Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/16714

Governance, Property Rights and Sustainable Resource Use: Analysis with Indian Ocean Rim Example
Provedor de dados: 31
Autores: Tisdell,   Clement A.; Roy,   Kartik C.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/53593

Exploring Linkages Among Agriculture, Trade, and the Environment: Issues for the Next Century
Provedor de dados: 31
Autores: Krissoff,   Barry; Ballenger,   Nicole; Dunmore,   John C.; Gray,   Denice.
Many trade and environment issues will confront agriculture over the next several years. This report provides an economic framework to better understand these issues and discusses prior empirical inquiries and findings. Four primary issues are addressed: (1) how will environmental policies affect agricultural trade?; (2) how will agricultural trade liberalization affect environmental quality?; (3) to what extent should there be international harmonization of environmental policies and product standards?; and (4) is there economic justification for using trade measures to protect the environment? This report demonstrates that basic economic paradigms can provide a basis for understanding how trade and the environment interact. The few empirical studies...
Tipo: Report
Palavras-chave: Environmental policy; Agricultural policy; Trade policy; Trade; Environment; Harmonization; Agricultural and Food Policy; Environmental Economics and Policy; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/33961

ENVIRONMENTAL ACCOUNTING AND AGRI-ENVIRONMENTAL POLICIES: AN APPLICATION TO THE REGULATION (EEC) 2078/92 IN EMILIA-ROMAGNA (ITALY); Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Caggiati,   P.; Viaggi,   Davide; Zanni,   G.
In the last decades, problems related to environmental protection have become more and more important, involving a growing number of economic and social actors.  The new role played by agriculture in this context requires not only innovations concerning policy instruments, but also an evolution of tools, such as those for environmental accounting and assessment, able to support the analysis of choices in a complex economic and technological context, characterised by a number of heterogeneous objectives.  This paper illustrates a model (AGRI-ECO-AUDIT) set up with the aim of supporting decision making concerning the application of Reg. (EEC) 2078/92 in Emilia-Romagna (Italy).  The aim is to verify the possible contribution of environmental accounting to...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/14427

Is More Credit the Best Way to Assist Beginning Low-Equity Farmers?
Provedor de dados: 31
Autores: Dodson,   Charles B.
Government programs to assist beginning farmers enjoy strong political support. Current Federal programs use credit enhancements to help beginning farmers purchase commercial farms; but higher debt loads increase financial risk. Future Federal policy may need to go beyond traditional credit programs and encourage equity investments or provide tax advantages to landowners who sell or rent their land to beginning farmers.
Tipo: Report
Palavras-chave: Agricultural Finance.
Ano: 1996
URL: http://purl.umn.edu/33602

Perceptions of Rural Air Quality:  What Will the Neighbors Think?
Provedor de dados: 31
Autores: Lohr,   Luanne.
Individuals exposed to odors from livestock facilities do not report annoyance uniformly. The reaction to a detectable odor depends on perceptions of the odor and its source which are mediated by odor attributes and personal factors. Correlations among these factors were tested in a rural context using date from a pilot study of seventeen households neighboring two swine operations in Michigan. Annoyance was measured as the impact of the neighboring facility on enjoyment of property. Characterization of odor as a problem was positively correlated with offensiveness, frequency and duration of exposure. Annoyance was negatively correlated with term of residence, current employment on a farm, and acquaintance with the facility owner. Annoyance was positively...
Tipo: Journal Article
Palavras-chave: Correlation analysis; Environmental annoyance; Manure management; Odor nuisance; Agribusiness; Community/Rural/Urban Development; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/90381

Care and Nutrition: Concepts and Measurement
Provedor de dados: 31
Autores: Engle,   Patrice L.; Menon,   Purnima; Haddad,   Lawrence James.
The concept of "care" as an analytical construct is still new to many outside the nutrition field. Moreover, for those in the field, care is problematic from the measurement point of view. Our hope is that this paper provides an effective introduction to care for the former group, and a useful summary for the latter group of attempts to develop care indicators. Care is the provision in the household and the community of time, attention and support to meet the physical, mental, and social needs of the growing child and other household members. The significance of care has been best articulated in the UNICEF framework. This paper extends the model presented by UNICEF by defining resources for care and specific care behaviors, and presenting an argument for...
Tipo: Working or Discussion Paper
Palavras-chave: Child Care; Child Feeding; Food Availability; Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/97306

Waste Management Legislation in Canada
Provedor de dados: 31
Autores: Dosman,   Donna; Adamowicz,   Wiktor L.; Laplante,   B.; Luckert,   Martin K.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/24098

THE STATISTICAL ANALYSIS OF DISCRETE-RESPONSE CV DATA
Provedor de dados: 31
Autores: Hanemann,   W. Michael; Kanninen,   Barbara.
Figures are not available for this Web version.
Tipo: Working or Discussion Paper
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/25022

DIFFERENTIATION AND IMPLICIT PRICES OF U.S. WHEAT EXPORTS
Provedor de dados: 31
Autores: Uri,   Noel D.; Hyberg,   Bengt.
This investigation looks at whether the grade determining and official criteria factors identified by the Federal Grain Inspection Service influence the price of wheat for export and, in turn, the competitiveness of United States wheat in the world market. Using data on the transactions price for hard red winter wheat, hard red spring wheat, and soft white wheat and the associated quality characteristics covering the period January 1990 through December 1991 and exported to 63 countries, the results suggest that the test weight, the percentage of shrunken and broken kernels, the protein content, the presence of aflatoxin, the presence of insects, and the falling number are characteristics consistently valued by the market.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/27068

MEASURING FARM AND FARM-RELATED JOBS IN WISCONSIN - 1992
Provedor de dados: 31
Autores: Saupe,   William E.; Majchrowicz,   T. Alexander.
The primary users of this report are expected to be extension faculty in the Agriculture/Agribusiness and Community, Natural Resource and Economic Development program areas; faculty whose research supports those program areas; and persons involved in public policy. The objectives of this paper are as follows: a) to report estimates of the number of farm and farm-related jobs in Wisconsin and Wisconsin counties in 1992, b) to discuss the concepts, rationale, and definitions used in this study, and c) to explain the process and data sources used in making the estimates in sufficient detail so that users are comfortable using the empirical results in extension and other educational activities. d) to report additional references pertaining to measuring the...
Tipo: Working or Discussion Paper
Palavras-chave: Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/12636

THE EXPORT ENHANCEMENT PROGRAM'S INFLUENCE ON FIRM-LEVEL COMPETITION IN INTERNATIONAL MARKETS
Provedor de dados: 31
Autores: Patterson,   Paul M.; Abbott,   Philip C.; Stiegert,   Kyle W.
The U.S. government awarded export subsidies to agribusiness firms through the Export Enhancement Program (EEP). This study analyzes (a) whether the subsidies promoted new firm market entry and (b) whether firm characteristics influenced program participation. Trade in three commodities, poultry, wheat, and wheat flour, was analyzed using firm level data. It was found that new firm market entry was not significantly higher among subsidy recipients and that past program participation strongly influenced current program participation. Although the EEP is believed to have been administered fairly, perceived or real barriers prevented some firms from using it.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/30997

The New Growth Theory: Its Logic and Trade Policy Implications
Provedor de dados: 31
Autores: Baldwin,   Richard E.; Seghezza,   Elena.
Tipo: Conference Paper or Presentation
Palavras-chave: International Development; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/50862

ON MARKET EQUILIBRIUM ANALYSIS
Provedor de dados: 31
Autores: Chavas,   Jean-Paul; Cox,   Thomas L.
The paper develops the implications of competitive market equilibrium for production and household behavior when some prices are endogenously determined. The properties of market equilibrium functions are explored, including the effects of pricing policy. A Slutsky-type equation relating compensated and uncompensated market equilibrium functions is derived. Implications for multi-market welfare analysis are presented, focusing on the effects of pricing policy and technical change.
Tipo: Working or Discussion Paper
Palavras-chave: Industrial Organization.
Ano: 1996
URL: http://purl.umn.edu/12615

Planning and Sustainable Management: A Re-Examination of the Peri-Urban Problem
Provedor de dados: 31
Autores: Clough,   Peter.
This paper examines the economics of urban expansion onto rural land in light of the sustainable management requirements of New Zealand's Resource Management Act. It finds that if conversion of land from rural to urban uses is practically irreversible because of the high cost of restoring rural qualities, it creates a user cost or inter-temporal externality which planning controls could address. Comparison of the methods for implementing such a policy show tradable development rights have high efficiency, but there are legal, practical and political obstacles to their use. A form of zoning which differentiates the controls between areas on the basis of the effects of particular activities in those areas may be the best practicable option, albeit at some...
Tipo: Journal Article
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/12361

1995 ANNUAL REPORT OF THE SOUTHEASTERN MINNESOTA FARM BUSINESS MANAGEMENT ASSOCIATION
Provedor de dados: 31
Autores: Olson,   Kent D.; Westman,   Lorin L.; Nordquist,   Dale W.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management.
Ano: 1996
URL: http://purl.umn.edu/13329

DEVELOPING COUNTRIES AND ENVIRONMENTAL PROTECTION: THE EFFECT OF BUDGET BALANCE                 AND POLLUTION CEILING CONSTRAINTS
Provedor de dados: 31
Autores: Batabyal,   Amitrajeet A.
I analyze the problem faced by an asymmetrically informed supranational governmental authority (SNGA) with limited financial resources who wishes to design an International Environmental Agreement (IEA). The SNGA cannot contract directly with polluting firms in the various LDCs, but he must deal with such firms through their governments. I study this tripartite hierarchical interaction and focus on the properties of the optimal ex post contracts (IEAs), which can be implemented by the SNGA, in turn, in the case where governments and firms in each nation do not collude and then in the case where governments and firms do collude. I find that the monetary transfers necessary to induce optimal behavior by governments and firms are not very sensitive to the...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental; Agreement; LDCs; Budget; Ceiling; Environmental Economics and Policy; International Development; D62; D82; Q25.
Ano: 1996
URL: http://purl.umn.edu/28347

STRATEGIC PLANNING FOR IMPROVED COMPETITIVENESS BY REGIONAL COMMODITY INDUSTRIES
Provedor de dados: 31
Autores: Ricks,   Donald J.; Woods,   Timothy A.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/27794

U.S. Dairy Sector Simulator: A Spatially Disaggregated Model of the U.S. Dairy Industry
Provedor de dados: 31
Autores: Pratt,   James E.; Novakovic,   Andrew M.; Stephenson,   Mark W.; Bishop,   Phillip M.; Erba,   Eric M.
Tipo: Working Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/121192

THE DISTINCT IMPACT OF FOOD STAMPS ON FOOD SPENDING
Provedor de dados: 31
Autores: Wilde,   Parke E.; Ranney,   Christine K.
The Southworth hypothesis predicts that inframarginal food stamp recipients should choose the same bundle of goods, whether they receive coupons or cash. Empirical research has contradicted this prediction. Here, we present a model that retains some attractive features of the Southworth hypothesis, while relaxing the key assumption that appears to be incorrect. In particular, we allow different forms of benefits to have distinct effects on desired, or unrestricted food spending. Two categories of previously commonly used empirical models are evaluated as special cases of our more general model. We estimate this model using data from two cash-out experiments.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics; Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/31002

Cash Crop and Foodgrain Productivity in Senegal: Historical View, New Survey Evidence, and Policy Implications
Provedor de dados: 31
Autores: Kelly,   Valerie A.; Diagana,   Bocar N.; Reardon,   Thomas; Gaye,   Matar; Crawford,   Eric W.
Senegal has experienced a number of spurts in agricultural production and productivity growth since independence, yet average trends from 1960 through 1993 have been either stagnant (in terms of aggregate production and yields), or negative (in terms of real value of production). Although use of animal traction is ubiquitous, current crop production in the Peanut Basin must be characterized as low external input farming. Farmers are unanimous in their belief that the most important constraint to improving agricultural output is their inability to obtain desired quantities of peanut seed. Inadequate seed has led to lower peanut income and a diminished capacity to purchase productivity-enhancing inputs: aging animal traction equipment is not being replaced,...
Tipo: Report
Palavras-chave: Crop Production/Industries; Productivity Analysis; Downloads July 2008 - July 2009: 37.
Ano: 1996
URL: http://purl.umn.edu/54051

Minnesota Agricultural Economist 684
Provedor de dados: 31
Autores: Wegner,   Thomas D.; Ploetz,   Susan T.; Taff,   Steven J.
Farmland Loss: A New Measure Sheds New Light
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/13168

NONTARIFF AGRICULTURAL TRADE BARRIERS REVISITED
Provedor de dados: 31
Autores: Hillman,   Jimmye S.
Terminological, as well as substantive, problems with other-than-customs-duty trade protection issues have existed for a long time. After World War II, these problems proved troublesome for trade analysts. Baldwin [1970], Denton and O'Cleiracain [1972], and Lloyd [1973] were among the first who helped clarify language and ideas. Unlike many at that time, I chose to stick with  "nontariff barriers"  as a generic shorthand to describe a world of government measures, other than tariffs or customs taxes, which restrict or distort international commerce between domestic and imported goods and services. Viewed in this simple fashion, nontariff barriers [NTBs] came to mean the totality of instruments, other than customs duties, which restrict international trade....
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/14602

Spatio-Temporal Statistical Modeling of Livestock Waste in Streams
Provedor de dados: 31
Autores: Cressie,   Noel; Majure,   James J.
Livestock agriculture (e.g., dairy, beef, pork, poultry) in the USA is tending rapidly toward operations where a large number of animals are concentrated in a relatively small area. The economies of scale are counterbalanced by the dangers of pollution from inadequate treatment of animal waste. Traditional methods of treatment involve lagoon retention and subsequent spreading on fields but the sheer volume of production seems to be outstripping these and other technologies. Surface-water runoff finds its way into streams and rivers, ultimately polluting all downstream segments of the watershed. The topic of this paper is spatio-temporal statistical modeling of (log) nitrate concentration in the upper North Bosque watershed, which is a region of...
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18664

THE BST CASE
Provedor de dados: 31
Autores: Dobson,   William D.
Recombinant Bovine Somatotropin (rBST) is a milk production enhancer, a product of industrial microbiology. First approved for commercial sale in the United States (U.S.) by the Food and Drug Administration (FDA) in 1994, rBST has been immersed in controversy since the early 1980s. Conflicts among major players with interests in rBST have shaped the product's image and influenced its use. Players with interests in the product include government agencies, Monsanto Corporation (the first firm approved to sell rBST), other firms seeking commercial approval to sell rBST, dairy farmers, and consumers.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/12597

RELAXING THE ASSUMPTIONS OF MINIMUM-VARIANCE HEDGING
Provedor de dados: 31
Autores: Lence,   Sergio H.
The most important minimum-variance hedging ration assumptions are (a) that production is deterministic and (b) that all of the agent’'s wealth is invested in the cash position. Stochastic production greatly reduces optimal hedge ratios. An alternative investment greatly reduces opportunity costs of not hedging by “"diluting"” the cash position. Stochastic production and/or alternative investments render the costs associated with hedging relatively more important, yielding almost negligible net benefits of hedging. Hence, hedging costs typically dismiss in hedging models for being seemingly negligible are important determinants of hedging behavior.
Tipo: Journal Article
Palavras-chave: Production Economics.
Ano: 1996
URL: http://purl.umn.edu/30990

Livestock Income, Male/Female Animals, and Inequality in Rural Pakistan
Provedor de dados: 31
Autores: Adams,   Richard H., Jr.
This paper uses income decomposition techniques to demonstrate the importance of livestock income in improving rural income distribution. It is based on three-year household panel data (1986 to 1989) from rural Pakistan. The paper first decomposes total income among five sources: agricultural, nonfarm, livestock, rental and transfer. This shows that livestock income is inequality-decreasing and that it makes the smallest contribution to overall inequality. The study then decomposes the sources of livestock inequality by type of animal. While livestock income from male animals has a negative impact on equity, livestock income from one female animal (local cow) has a positive effect.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/42681

Child Development: Vulnerability and Resilience
Provedor de dados: 31
Autores: Engle,   Patrice L.; Castle,   Sarah; Menon,   Purnima.
Many of the challenges facing children now are a function of the changing times, including increases in urbanization, political violence, changing family forms, and, in some areas, decreased supplies of adequate food. This paper reviews the evolving nature of these risks. In addition, the paper analyzes the development of formal and informal strategies to ameliorate the vulnerability and promote the resilience of young children to these risks. The paper identifies four stages in the research process regarding risks for children: (1) identification of the risk; (2) clarification of etiology and consequences; (3) recognition of resilience among some individuals; and (4) definition of factors in resilience and implications for intervention.
Tipo: Working or Discussion Paper
Palavras-chave: Food Supply; Urbanization; Child Development; Health Services; Welfare Economics; Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/97309

Emerging Issues in Risk Management in Farm Firms
Provedor de dados: 31
Autores: Beal,   Diana J.
Farming is a high risk business because of the inherent variability of the natural environment in which it is placed and the markets in which its products are sold. Farmers have learned to cope with variability and have adopted management strategies which decrease risk to the farm firm. This paper examines the literature on emerging issues in risk management in agriculture and how farmers might react in the future. Attention is focused on managing changes in risk exposure due to climatic variability and market variability, and on management measures that protect the structure of the farm business.
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/12371

Public Support for Pollution Fee Policies for Motor Vehicles: Survey Results
Provedor de dados: 31
Autores: Krupnick,   Alan J.; Harrington,   Winston; Alberini,   Anna.
In this paper we report on the results of a telephone survey conducted in Southern California during August and September 1996. The purpose of the survey was to inform respondents about a set of rather complex pricing policies designed to reduce motor vehicle emissions and to estimate respondent support for those policies. After receiving extensive information about these policies, respondents were polled on whether they would support, i.e., vote for, any or all of these options. The pollution fee survey elicited support for a plan that levied a fee on vehicles in the region, depending on the vehicle's emissions per mile and on the miles driven. The sample was then split in two, with half the respondents being told that a portion of the revenues would be...
Tipo: Working or Discussion Paper
Palavras-chave: Mobile sources; Survey; Emissions fees; Environmental Economics and Policy; R41; Q28.
Ano: 1996
URL: http://purl.umn.edu/10469

THE NEW NUTRITION LABELS: A STUDY OF CONSUMERS' USE FOR DAIRY PRODUCTS
Provedor de dados: 31
Autores: Jensen,   Kimberly L.; Adams,   Laura; Hollis,   Scott; Brooker,   John R.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/27891

Six Steps to a Healthier Ambient Ozone Policy
Provedor de dados: 31
Autores: Krupnick,   Alan J.; Farrell,   Deirdre.
EPA appears likely to tighten the ambient ozone standard, even as many areas of the country are having great difficulties meeting the current standard. This paper offers an analysis of potential regulatory, administrative, and legislative initiatives for reducing the costs of meeting ozone standards. The detailed analysis of these initiatives is organized into six steps: (i) acknowledge mistakes and adapt to new knowledge; (ii) rehabilitate EPA's Title I Program; (iii) build on the best ideas; (iv) clarify and change the Clean Air Act; (v) educate the public; and (vi) fund research. EPA can go a long way to make its programs more efficient and effective without changes in the Clean Air Act; indeed, a number of its current initiatives show promise. But it...
Tipo: Working or Discussion Paper
Palavras-chave: Ambient ozone standards; Policy; Economic analysis; Environmental Economics and Policy; Q28; K32.
Ano: 1996
URL: http://purl.umn.edu/10752

Institutional design principles for accountability in large irrigation systems.
Provedor de dados: 31
Autores: Merrey,   Douglas J.
Argues that single irrigation systems managed by autonomous system-specific organizations accountable to their customers, perform better and are more sustainable than those managed by agencies dependent on the government, or by agencies responsible for multiple systems. Selected cases are reviewed and the plausibility of this hypothesis established. General recommendations are made for policy makers designing irrigation reform programs.
Tipo: Report
Palavras-chave: Irrigation management; Government-managed irrigation systems; Large-scale systems; Organizational design; Water users' associations; Water users; Farmers' associations; Farmer participation; Sustainability; Water rights; Performance evaluation; Performance indexes; Participatory management; Privatization; Policy; Research methods; Case studies Nepal; Sri Lanka; Indonesia; Agribusiness; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Financial Economics; Food Security and Poverty; Labor and Human Capital; Land Economics/Use; Marketing; Production Economics; Productivity Analysis; Public Economics.
Ano: 1996
URL: http://purl.umn.edu/52732

Women's Economic Advancement Through Agricultural Change: A Review of Donor Experience
Provedor de dados: 31
Autores: Pena,   Christine; Webb,   Patrick; Haddad,   Lawrence James.
This paper reviews donor experience with the design of development projects that are sensitive to gender-specific constraints. The review finds that the gap between intentions and implementation as regards gender-sensitivity is larger in agriculture than in health and nutrition. One of the reasons forwarded for this gap is the dearth of quantitative studies documenting the foregone benefits in terms of agricultural productivity of not promoting the economic advancement of women in agriculture.
Tipo: Working or Discussion Paper
Palavras-chave: Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/42680

GENERATION OF RECYCLABLES BY RURAL HOUSEHOLDS
Provedor de dados: 31
Autores: Jakus,   Paul M.; Tiller,   Kelly; Park,   William M.
Rising landfill costs have forced solid waste managers to consider ways to reduce the waste stream. Using survey data, models explaining the weight of recyclables generated  by households are estimated for paper and glass. Results indicate that households respond to the time cost of recycling paper but not glass. The waste generation models imply total monthly willingness to pay for recycling is $5.78 per household. Waste managers may increase the weight of recycled waste stream with programs which lower perceived time costs of nonrecyclers and improve the efficiency of recyclers.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/30994

WOOL PRICE VARIABILITY IN THE LONG RUN
Provedor de dados: 31
Autores: Bardsley,   Peter; Olekalns,   Nilss.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/22360

A DESCRIPTIVE ANALYSIS OF THE CHARACTERISTICS AND FINANCIAL PERFORMANCE OF DAIRY FARMS IN MICHIGAN, NEW YORK, ONTARIO, PENNSYLVANIA AND WISCONSIN
Provedor de dados: 31
Autores: Ford,   Stephen A.; Gardner,   Robert; Gripp,   Sharon I.; Harsh,   Stephen B.; Knoblauch,   Wayne A.; Novakovic,   Andrew M.; Putnam,   Linda D.; Stephenson,   Mark W.; Weersink,   Alfons; Yonkers,   Robert D.
In 1989, The Cornell Program on Dairy Markets and Policy collaborated with the Texas A&amp;M Agricultural and Food Policy Center to form a National Institute for Livestock and Dairy Policy (NILDP). The Institute is a focal point for a neutral and objective analyses of the consequences of alternative government policies on the livestock, dairy, and poultry industries and the broader economics of livestock and dairy markets. Based on their respective strengths and emphases, Texas A&amp;M is the lead institution on livestock and poultry sector analysis, and Cornell is the lead institution on dairy sector analysis. The Institute has been supported by a special research grant through the U. S. Department of Agriculture since 1989. The Dairy Farm Analysis...
Tipo: Technical Report
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/122828

Competitiveness and Marketability of Vegetable Oils, Oilmeals, and Plant Equipment for Processing of Oilseeds and Oils in the Baltic States
Provedor de dados: 31
Autores: Agarwal,   Sanjeev; Wong,   John.
Tipo: Working or Discussion Paper
Palavras-chave: Agribusiness; International Relations/Trade; Marketing.
Ano: 1996
URL: http://purl.umn.edu/18700

Invited Papers to the 40th Annual Conference AARES; Referees of Papers Submitted to the AJAE in 1995
Provedor de dados: 31
Tipo: Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/119485

ENVIRONMENTAL REGULATORY REFORM: DISCUSSION
Provedor de dados: 31
Autores: Park,   William M.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/15238

NEW FOOD PRODUCTS: INNOVATION, IMPROVEMENT, OR IMITATION?
Provedor de dados: 31
Autores: Groff,   Andrew J.; Christy,   Ralph D.
Researchers have little understanding of what lies beneath the increased numbers and declining "innovativeness" of new food products. This paper investigates product innovation by focusing on both market- and firm-level relationships. Structural data is compared with innovation trends to determine possible associations. A mail questionnaire of 27 food manufacturing firms investigates the issues of strategy, practices and performance. The food manufacturing industries reflect the conventional wisdom that larger firms in concentrated markets invest more in product innovation efforts, but do not contribute proportionately more to innovative output. The declining "innovativeness" of food products results from emphasis on developing product improvements and...
Tipo: Journal Article
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/27793

LAND GRANT UNIVERSITIES ARE CHANGING
Provedor de dados: 31
Autores: Bonnen,   James T.
Tipo: Working or Discussion Paper
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/11554

PRICE VERSUS QUOTA REDUCTIONS: U.S. FLUE-CURED TOBACCO POLICY
Provedor de dados: 31
Autores: Brown,   A. Blake; Martin,   Laura L.
Declining domestic cigarette consumption, increased global competition, and loss of import restrictions indicate decreased demand for U.S. flue-cured tobacco. The effects of 10% declines in domestic and export demand are evaluated under a policy of reducing quota to maintain price versus a policy of allowing price to fall to maintain quota. Changes in prices, quantities, revenues, and economic rents are simulated. Losses to nonfarming quota owners are minimized under a policy of price maintenance, while losses in revenues to tobacco-producing areas are minimized by a policy of quota maintenance. Aggregate losses to tobacco growers are greater under a policy of quota maintenance.
Tipo: Journal Article
Palavras-chave: Flue-cured; Policy; Price reduction; Quota; Tobacco; Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/15112

Determinants of Farm Productivity in Africa: A Synthesis of Four Case Studies
Provedor de dados: 31
Autores: Reardon,   Thomas; Kelly,   Valerie A.; Crawford,   Eric W.; Jayne,   Thomas S.; Savadogo,   Kimseyinga; Clay,   Daniel C.
Tipo: Report
Palavras-chave: Productivity Analysis; Downloads July 2008 - July 2009: 52.
Ano: 1996
URL: http://purl.umn.edu/54049

SOCIOPOLITICAL EFFECTS OF NEW BIOTECHNOLOGIES IN DEVELOPING COUNTRIES
Provedor de dados: 31
Autores: Leisinger,   Klaus M.
Tipo: Working or Discussion Paper
Palavras-chave: International Development; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/16323

DUAL MARKETING AND THE DECISIONS FACING WESTERN CANADIAN FARMERS FOR WHEAT AND BARLEY MARKETING: A BRIEF TO THE WESTERN GRAIN MARKETING PANEL
Provedor de dados: 31
Autores: Fulton,   Murray E.; Vercammen,   James.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Marketing.
Ano: 1996
URL: http://purl.umn.edu/31759

TARIFFICATION UNDER THE URUGUAY ROUND OF GATT: THE CASE OF SWISS ASPARAGUS TRADE
Provedor de dados: 31
Autores: Worley,   C. Thomas; Folwell,   Raymond J.; Bagnara,   Gian Luca.
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/27781

Agriculture and the new industrial revolution in Asia
Provedor de dados: 31
Autores: Bautista,   Romeo M.; DeRosa,   Dean A.
"September 1996." Includes bibliographical references (leaves 17-19). Published, in 1998, in Richard Hooley and Zainal-Abidin Mahani, eds. The new industrial revolution in Asian economies, Vol. 8, pp. 317-333.
Tipo: Working or Discussion Paper
Palavras-chave: Industrialization; Agricultural development; Rural development -- Asia; International Development.
Ano: 1996
URL: http://purl.umn.edu/97764

Job and Skill Impacts of New Technology in the East Asian Electronics Industry
Provedor de dados: 31
Autores: Heeks,   Richard; Slamen-McCann,   Anne.
This paper reviews recent (post-1985) research literature on job and skill impacts associated with new manufacturing technologies and more globalised production in the East Asian electronics export industry. It describes the unique developmental, technological and cultural framework of the industry, as a result of which it is successfully managing the assimilation of new technology. Employment levels are not falling in the face of automation, while the main problem remains labour shortage. Imported technology has been effectively absorbed and technological capabilities have been accum ulated, up to levels of globally-competitive innovation in the most successful cases. There is a fresh round of international division of labour in which East Asia emerges as...
Tipo: Working or Discussion Paper
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/30559

A Conceptual Framework for Evaluating Agricultural Economic and Environmental Tradeoffs in the Central Nebraska Basins Using Field-Level Area Study Data
Provedor de dados: 31
Autores: Lakshminarayan,   P.G.; Babcock,   Bruce A.; Mitchell,   Paul D.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/18373

CLIMATE CHANGE, AGRICULTURE, AND DEVELOPING ECONOMIES
Provedor de dados: 31
Autores: Winters,   Paul C.; Murgai,   Rinku; Sadoulet,   Elisabeth; de Janvry,   Alain.
The impact of global climate change on the less developed countries is analyzed using archetype CGE-multimarket models for three economies representing the poor cereal importing nations of Africa, Asia, and Latin America.  The objective is to predict the differential impact of climate change across continents on macroeconomic variables, sectoral responses, and household income and food consumption effects, particularly among the poorest.  Results show that all these countries will lose and that their agricultural outputs will fall, but that Africa will be by far the most severely affected.  Countervailing policies to mitigate negative effects should focus on the production of food crops in Africa and of export crops in Latin America and Asia.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; International Development.
Ano: 1996
URL: http://purl.umn.edu/25079

Duration of agricultural employment
Provedor de dados: 31
Autores: Hashida,   Emiko; Perloff,   Jeffrey M.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural labor; Employment; Mathematical models; Probabilities; Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/47281

Minnesota Agricultural Economist No. 686
Provedor de dados: 31
Autores: Taff,   Steven J.
1996 FARM REAL ESTATE SALES PRICES UP SHARPLY ACROSS MINNESOTA
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/13177

THE ECONOMIC IMPACT OF UINTAH COUNTY'S WESTERN PARK
Provedor de dados: 31
Autores: Snyder,   Donald L.
Uintah County is home to a multiactivity conference complex located in Vernal, Utah. The complex is almost in constant use and includes locally sponsored activities, as well as regional and national activities. An estimate of local and nonlocal users were identified from Mr. Derk Hatch, manager of Western Park. I assumed that “nonlocal” use originated outside the county. Taking into account the “local” and “nonlocal” mix, it is estimated that the center annually generates over $4.8 million dollars in economic activity, with approximately 60% a result of direct expenditures. The complex also results in additional employment opportunities for approximately 136 individuals, summarizing direct, indirect, and induced effects. The county’s population change as a...
Tipo: Working or Discussion Paper
Palavras-chave: Community/Rural/Urban Development.
Ano: 1996
URL: http://purl.umn.edu/28357

Cost Savings Sans Allowance Trades? Evaluating the SO2 Emission Trading Program to Date
Provedor de dados: 31
Autores: Burtraw,   Dallas.
Title IV of the 1990 amendments to the Clean Air Act initiated a historic experiment in incentive-based environmental regulation through the use of tradable allowances for emission of sulfur dioxide by electric generating facilities. To date, relatively little allowance trading has taken place; however, the costs of compliance have been much less than anticipated. The purpose of this paper is to address the apparent paradox that the allowance trading program may not require (very much) trading to be successful. Title IV represented two great steps forward in environmental regulation: first a move toward performance standards and second formal allowance trading. The first step has been sufficient to date for improving dynamic efficiency and achieving...
Tipo: Working or Discussion Paper
Palavras-chave: Emission trading; SO2; Clean Air Act; Cost-effectiveness; Incentive-based regulation; Environmental Economics and Policy; Q25; Q28; Q48; L51.
Ano: 1996
URL: http://purl.umn.edu/10682

WORLD SUGAR POLICY SIMULATION MODEL: DESCRIPTION AND COMPUTER PROGRAM DOCUMENTATION
Provedor de dados: 31
Autores: Benirschka,   Martin; Koo,   Won W.; Lou,   Jianqiang.
The World Sugar Policy Simulation Model is a dynamic, partial equilibrium, net trade model.   It distinguishes 18 countries and regions, and sugar is assumed to be a homogenous commodity.  The model  is designed for evaluating the effects on the world sugar economy of farm and trade policies by simulating production, consumption, stocks, and trade for sugar over a 10- to 15-year period.  Figures are not included in the machine readable file--contact the authors for paper copies.
Tipo: Working or Discussion Paper
Palavras-chave: International Sugar Trade; Simulation Model Note; Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/23432

ECONOMICS AND ECOSYSTEM MANAGEMENT: DISCUSSION
Provedor de dados: 31
Autores: Poe,   Gregory L.
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/31413

Macroeconomic Crises And Poverty Monitoring: A Case Study for India
Provedor de dados: 31
Autores: Datt,   Gaurav; Ravallion,   Martin.
Assessment of the welfare impacts of low-frequency events, such as macroeconomic crises and stabilizations, are often confounded by sampling and nonsampling errors that generate fluctuations in household survey-based welfare indicators; they are also limited by our ability to explain fluctuations in terms of other available data. Basing policy on short-term movements in welfare indicators can thus be hazardous. There was a sharp increase in India's poverty measures in the aftermath of the mid-1991 crisis and the ensuing stabilization reforms. However, only one-tenth of the increase in measured poverty is explicable in terms of the variables one would expect to transmit the shock. Poverty measures soon returned to their pre-reform levels, belying the notion...
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/42678

Can We Predict Student Success in Agricultural Economics Graduate Programs?
Provedor de dados: 31
Autores: Ethridge,   Don E.; Hudson,   Darren.
Criteria for admission to graduate programs are used by departments and graduate schools to identify characteristics assumed to be associated with “success”. They allow for more uniformity in student ability and preparation so graduate education is more efficient. This study analyzes the relationship between selected student characteristics and experience and two proxies for “success”—graduate GPA and the probability of completing an Agricultural Economics graduate program. Data are from past students in the Department of Agricultural Economics at Texas Tech University. Statistical differences among the means of student characteristics were evaluated, a regression model was estimated to predict graduate GPA, and a logistical regression was estimated to...
Tipo: Journal Article
Palavras-chave: Graduate admissions; GRE scores; GPA; Logistical regression; Agribusiness; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/90394

EMERGING DEMANDS ON OUR FOOD AND AGRICULTURAL SYSTEM: DEVELOPMENTS IN ENVIRONMENTAL LABELING
Provedor de dados: 31
Autores: van Ravenswaay,   Eileen O.
A growing number of consumers are demanding more environmentally benign products, and companies are meeting this demand by making environmental claims on product labels.  This phenomenon has led to two policy issues.  One is preventing deceptive environmental labeling.  The other is whether ecolabeling should be used to achieve environmental policy goals. This paper describes national and international developments in these two policy areas and explores marketing and policy implications for the food and agricultural system.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/11742

Cost of Production Summary for Major Manitoba Field Crops 1994.
Provedor de dados: 31
Autores: Rudstrom,   Margaretha; Sabourin,   Sylvio.
Tipo: Working Papers
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/124312

DECOMPOSITION ANALYSIS OF FACTOR COST SHARES: THE CASE OF GREEK AGRICULTURE
Provedor de dados: 31
Autores: Karagiannis,   Giannis; Katranidis,   Stelios D.; Velentzas,   Kostas.
An alternative version of decomposition analysis, based on factor cost shares rather than input demand functions, is presented and applied to Greek agriculture. Decomposition analysis shows that most of the changes in factor cost shares during the period from 1973 to 1989 are attributed to technical change and factor substitution, while the role of the scale effect is small, except that of fertilizer. The decomposition analysis results are then used to analyze the implications of Greece's fertilizer and feed subsidy removal, which took place in 1990.
Tipo: Journal Article
Palavras-chave: Decomposition analysis; Factor cost shares; Greek agriculture; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/15115

CRP Targeting for Wildlife Habitat: A New Indicator Using the 1992 National Resources Inventory
Provedor de dados: 31
Autores: Lakshminarayan,   P.G.; Babcock,   Bruce A.; Kellogg,   Robert L.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/18609

REGIONAL ADJUSTMENT COSTS: A FAILURE OF NATIONAL ANALYSIS
Provedor de dados: 31
Autores: Dicks,   Michael R.
The use of national aggregate measures for the purpose of analyzing the impacts of agricultural policies hides the impact of national policies on the distribution of benefits and costs between and within regions, size, and types of businesses. While economists can use national aggregate measures to indicate changes in overall efficiency due to policies, the tradeoff between efficiency and equity should be measured and the results provided to policymakers. These tradeoffs were not presented during the 1995-96 Farm Bill debate.
Tipo: Journal Article
Palavras-chave: Agricultural policy; Equity; Farm bill; Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/15229

ECONOMIC EFFECT OF IMPERFECT INFORMATION ON CONSERVATION DECISIONS
Provedor de dados: 31
Autores: Paudel,   Krishna P.; Lohr,   Luanne.
Cotton farmers in the Piedmont region incorrectly believe conservation systems with winter cover crop and no-till cultivation yield less than conventional systems.  We model the effect of organic matter on productivity and show how ignoring this effect causes returns to be underestimated.  Farmers with imperfect information underinvest in residue management.
Tipo: Working or Discussion Paper
Palavras-chave: Residue management; Organic matter; Productivity; Comparative statics; Farm Management; Land Economics/Use; Productivity Analysis.
Ano: 1996
URL: http://purl.umn.edu/16645

The Cost of Reducing Municipal Solid Waste
Provedor de dados: 31
Autores: Palmer,   Karen L.; Sigman,   Hilary; Walls,   Margaret.
This paper explores public policies for reduction of municipal solid waste. We parameterize a simple model of waste disposal using supply and demand elasticities from the economics literature and 1990 prices and quantities of recyclable and recycled materials. Using this model, we calculate the waste reduction in response to three public policies: (i) deposit/ refunds, (ii) advance disposal fees, and (iii) recycling subsidies. The results illustrate the effects of the three policies on source reduction and recycling of five recyclable materials that comprise 56 percent of municipal solid waste: aluminum, glass, paper, plastic, and steel. The calculated responses provide information about the cost of reducing municipal solid waste through various policies....
Tipo: Working or Discussion Paper
Palavras-chave: Solid waste; Deposit/refund; Recycling subsidy; Secondary materials; Environmental Economics and Policy; Q2; H2.
Ano: 1996
URL: http://purl.umn.edu/10898

ASYMMETRIC PRICE RELATIONSHIPS IN THE U.S. BROILER INDUSTRY
Provedor de dados: 31
Autores: Bernard,   John C.; Willett,   Lois Schertz.
This study presents a testing methodology to analyze potential price asymmetries among the farm, wholesale, and retail levels of the U.S. broiler industry. Lag length, direction of causality and power of the integrators in the industry have allowed the wholesale price to become the center, causal price in the market. Asymmetric price transmissions, however, are limited. While downward movements in the wholesale price are passed on more fully to growers than increases in the wholesale price, only consumers in the North Central region of the U.S. share a larger portion of wholesalers' price increases than price decreases.
Tipo: Journal Article
Palavras-chave: Asymmetry; Broilers; Concentration; Granger causality; Price transmission; Demand and Price Analysis; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/15125

Demand for High-value Secondary Crops in Developing Countries: The Case of Potatoes in Bangladesh and Pakistan
Provedor de dados: 31
Autores: Bouis,   Howarth E.; Scott,   Gregory.
Secondary crops are of increasing interest to policymakers and planners in developing countries because of a desire to diversify economic activities and because of their proven potential to raise farm incomes and rural employment. To assess this potential, basic information on the demand characteristics for these crops is required. But, given the large number of possible crops to be studied, policy analysts require an estimation procedure that is less data-intensive and time-intensive than standard econometric estimation procedures. In this paper, a relatively new, low-cost procedure, based on demand for food characteristics, is applied, illustrating its usefulness for analysis of demand for potatoes in Bangladesh and Pakistan. In Asia, the potato should...
Tipo: Working or Discussion Paper
Palavras-chave: Economics; Methodology; Pakistan; Potatoes; Economic aspects; Crop diversification; Price Maintenance; Asia; Bangladesh; Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/97300

Developments in the Japanese Beef Market Following Import Liberalisation
Provedor de dados: 31
Autores: Chadee,   Doren; Mori,   Hiroshi.
Over the last several years there has been increasing pressure on most western industrialised countries to liberalise trade for food and agricultural products and yet the full implications of freer trade are not always well understood. This paper attempts to fill this gap by reviewing the developments in the Japanese beef market following import liberalisation. We conclude that the Japanese beef market has experienced major structural changes over a relatively short period as a result of liberalising beef imports. The most apparent impact has been on Japanese consumers who have benefited from lower retail beef prices and a greater variety of beef cuts to choose from. The types and quality of beef imported have also changed and consequently major suppliers...
Tipo: Journal Article
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/12302

Cost and Efficiency in Alberta Dairy Production
Provedor de dados: 31
Autores: Richards,   Timothy J.; Jeffrey,   Scott R.
This study investigates the relationships between farm size, milk yield, cost of production, and technical efficiency in the Alberta dairy industry. Estimates of a stochastic production frontier are obtained with two alternative methods; an iterative "average frontier: (AF) procedure and a maximum-likelihood composed error (CE) term method. An index of technical efficiency is calculated for every herd in the sample, with the AF method resulting in an average efficiency ratio of 85 percent, and the CE method producing an average efficiency ratio of 83 percent. Regressions of production cost on milk output, herd size, and efficiency are used to test for the effects of size economies, yield economies, and technical efficiency on production cost. These results...
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/24094

GLOBAL DEVELOPMENTS AFFECTING THE U.S. FOOD MARKETING SECTOR
Provedor de dados: 31
Autores: Handy,   Charles R.
Tipo: Journal Article
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/27795

PECAN SUPPLY FACTORS AND 1996/7 SEASON PRICE FORECASTS
Provedor de dados: 31
Autores: Shafer,   Carl E.
Equations for forecasting US improved and native pecan prices were reasonably successful for one season ahead forecasts.  USDA October pecan crop forecasts, June cold storage stocks, and a GNP price deflator were the explanatory variables.  These variables are readily available early in the pecan harvesting season (September - December).  Data in first differences appeared to explain price behavior and forecast better than data in levels.  Forecasts for the 1996 season prices reflected 70 percent of the large drop in price from the 1995 season.  Unprecedented carryin stocks may have been responsible for the larger than forecast drop in prices.
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/24018

ECONOMIC MODELING OF LAND DEGRADATION IN DEVELOPING COUNTRIES
Provedor de dados: 31
Autores: Coxhead,   Ian A.
The history of economic models of land degradation is short, and yet fundamental changes have occurred in the structural assumptions underlying land degradation models and the questions they are used to address. Many of these changes are the results of studies in developing countries, where the problem of land degradation is proportionally much more severe. In this paper I first review the conventional single-farm approach, then present and explore some recent modifications and extensions. In an era of sometimes sweeping economic change in developing countries, the relationship between agricultural prices and land degradation is of particular importance. I examine ways in which different models predict the likely land degradation effects of economic reforms.
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/12685

THE INFLUENCE OF WETLAND TYPE AND WETLAND PROXIMITY ON RESIDENTIAL PROPERTY VALUES
Provedor de dados: 31
Autores: Doss,   Cheryl R.; Taff,   Steven J.
Using detailed residential housing and wetland location data, we determine relative preferences for proximity to four broad classes of wetlands, as expressed through housing values. Implicit prices for proximity to open-water and scrub-shrub wetlands are relatively higher than those for emergent-vegetation and forested wetlands.
Tipo: Journal Article
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/30992

FINANCIAL CHARACTERISTICS OF NORTH DAKOTA FARMS, 1994-1996
Provedor de dados: 31
Autores: Swenson,   Andrew L.
The performance of over 500 North Dakota farms, 1994-1996, is summarized using 16 financial measures.  Farms are categorized by geographic region, farm type, farm size, gross cash sales, farm tenure, net farm income, debt-to-asset, and age of farmer to analyze relationships between financial performance and farm characteristics.
Tipo: Working or Discussion Paper
Palavras-chave: Farm financial management; Farm management; Farm income; Liquidity; Solvency; Profitability; Repayment capacity; Financial efficiency; Financial benchmarks; Tenure; North Dakota; Agricultural Finance.
Ano: 1996
URL: http://purl.umn.edu/23393

AN ANALYSIS OF OCCUPATIONAL HEALTH IN PORK PRODUCTION
Provedor de dados: 31
Autores: Hurley,   Terrance M.; Kliebenstein,   James B.; Orazem,   Peter F.
The rapid expansion of large-scale pork production has been accompanied by increasing concerns regarding potential detrimental consequences of environmental hazards on the health of producers. This study makes use of health indicators obtained from attendees at the World Pork Expo between 1991 and 1995 to evaluate the impact of pork production generally and of confinement production, specifically, on producer health.  The analysis expands existing studies because the larger number of participants allows for detailed analysis, both nonfarmers and non-pork farmers are used as controls, both objective as well as self-reported health measures are considered, and personal characteristics such as height, weight, age, gender, smoking habits, and years of exposure...
Tipo: Working or Discussion Paper
Palavras-chave: Labor and Human Capital; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18278

END MATERIALS
Provedor de dados: 31
Includes: Guidelines for Manuscript Submission, Back Cover
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/27892

PUBLIC PROJECTS EVALUATION, ENVIRONMENT, AND SEN'S THEORY; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Casini,   Leonardo; Bernetti,   Iacopo.
The purpose of this paper is to present a methodology for analyzing public investment plans based on Sen's theory of capabilities.  Specifically, we will review the methodological and application problems involved in the use of Sen's theoretical framework for assessing the environmental and intergenerational impact of long-term public investments.
Tipo: Working or Discussion Paper
Palavras-chave: Public Economics; Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/14407

Relief through Development: Maize Market Liberalization in Urban Kenya
Provedor de dados: 31
Autores: Argwings-Kodhek,   Gem; Jayne,   Thomas S.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Marketing; Downloads July 2008-June 2009: 7.
Ano: 1996
URL: http://purl.umn.edu/11298

Does the Provision of Free Technical Information Really Influence Firm Behavior?
Provedor de dados: 31
Autores: Morgenstern,   Richard D.
Significant environmental benefits are often associated with the rapid diffusion of new energy-saving technologies. Over the past decade, the federal government, as well as electric and gas utilities, have begun to provide free technical information to potential buyers to stimulate private investment in certain technologies, particularly for retrofitting existing buildings. Yet it has not been demonstrated that this provision of technical information can truly accelerate the rate of technology diffusion. This study develops a model of firm behavior that incorporates multiple factors in the decision to retrofit high efficiency lighting technologies. Technology retrofit and the acceptance of technical information are modeled as jointly determined dichotomous...
Tipo: Working or Discussion Paper
Palavras-chave: Technology diffusion; Energy conservation; Policy instruments; Research and Development/Tech Change/Emerging Technologies; H59; Q48; O38.
Ano: 1996
URL: http://purl.umn.edu/10750

A Dynamic CGE Model of R&amp;D Based Growth in the U.S. Economy: An Experiment Using the New Growth Theory
Provedor de dados: 31
Autores: Diao,   Xinshen; Roe,   Terry L.
Tipo: Conference Paper or Presentation
Palavras-chave: International Development; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/50866

IMPLEMENTING THE URUGUAY ROUND: INCREASED FOOD PRICE STABILITY BY 2020?
Provedor de dados: 31
Autores: Islam,   Nurul.
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade; Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/16357

NOISE TRADE DEMAND IN FUTURES MARKETS
Provedor de dados: 31
Autores: Sanders,   Dwight R.; Irwin,   Scott H.; Leuthold,   Raymond M.
Theoretical noise trader models suggest that uninformed traders can impact market prices. However, these models' conclusions depend crucially on the assumed specification for noise trader demand. This research seeks to empirically determine the appropriate demand specification for uninformed traders. Using commercial market sentiment indices as proxies for noise trader demand, Granger causality models are estimated to examine the linear linkages between sentiment and futures returns. The models strongly suggest that noise traders are positive feedback traders (i.e., extrapolative expectations) with relatively long memories.
Tipo: Working or Discussion Paper
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/14765

Net Returns for Grain Sorghum and Corn under Alternative Irrigation Systems in Western Kansas
Provedor de dados: 31
Autores: Williams,   Jeffery R.; Llewelyn,   Richard V.; Reed,   Matthew S.; Lamm,   Freddie R.; DeLano,   Daniel R.
This study evaluates seven irrigation systems for use in production of grain sorghum and corn. These systems are medium pressure center-pivot (MPCP), low pressure center-pivot (LPCP), low drift nozzle center-pivot (LDN) , low energy precision application center-pivot (LEPA), furrow flood (FF) , surge flood (SF), and subsurface drip (SD). After-tax net present value estimates from investing in and using each system over a 10-year period to produce grain sorghum and corn are compared. The surge flood system, has the highest net returns under typical conditions for irrigation of both grain sorghum and corn. The furrow flood system generates the next highest net returns for both crops, followed by the subsurface drip system. The medium pressure center-pivot...
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/118003

Oil and Water Don't Mix: Risk on Tap in Western Siberia
Provedor de dados: 31
Autores: Wernstedt,   Kris.
In common with other areas throughout the Russian Federation, western Siberia faces formidable environmental pollution, a problem that in part is the legacy of the highly centralized Soviet era when meeting production quotas was the raison d'être for many managers of economic enterprises. In this region, over the last thirty years the near singular focus on short term oil production has led to severe contamination of the area's surface and groundwater supplies, threatening both human and ecological health. At the same time, revenues from continued oil extraction may provide the means to address some of the environmental problems. In light of the struggling economy and potential political instability, however, it is particularly critical that authorities...
Tipo: Working or Discussion Paper
Palavras-chave: Transitional economies; Drinking water; Oil contamination; Health risk; Prioritization; Least cost planning; Russia; Siberia; Environmental Economics and Policy; I18; Q28.
Ano: 1996
URL: http://purl.umn.edu/10887

BRAND NAME AND ADDED VALUE IN HORTICULTURAL PRODUCTS: ANALYSIS OF CONSUMER PERCEPTION; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Bagnara,   Gian Luca.
The objective of this study is to evaluate consumer willingness to pay for a brand that guarantees peaches produced by integrated pest management techniques.  Contingent evaluation has been applied to a survey of consumers at the retail level.  The econometric model of contingent evaluation shows the significant impact of socio- economic variables and consumer food style with respect to product characteristics.  In other words, the variables affecting perception are more important that actual characteristics of product in determining its added value.  Indeed, consumers are more willing to penalise unbranded peaches than to pay for a branded and guaranteed product.  Consequently, a brand to guarantee food safety in peaches is not sufficient to increase...
Tipo: Working or Discussion Paper
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/14458

Facilitating Effective Food Security Policy Reform
Provedor de dados: 31
Autores: Food Security II Faculty.
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty; Downloads December 2008 - July 2009: 10.
Ano: 1996
URL: http://purl.umn.edu/11336

Risk Management Strategies in New Zealand Agriculture and Horticulture
Provedor de dados: 31
Autores: Martin,   Sandra.
This study strengthens the empirical basis for risk analysis by identifying the importance which producers attach to different risk management strategies in New Zealand's deregulated farming environment. A nationwide survey covering eight farm types was conducted. As range of production, marketing and financial strategies used by farmers and growers were identified. Some strategies appear to be favoured by farmers and growers in all industries, others seem to be industry specific, and some are universally unpopular. The mix of strategies employed seems to vary by farm type. Possible reasons for variation are identified.
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/12298

Pork Production in Iowa: An Industry at a Crossroads
Provedor de dados: 31
Autores: Hayes,   Dermot J.; Otto,   Daniel M.; Lawrence,   John D.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18293

Spatial Heterogeneity and the Choice of Instruments to Control Nonpoint Pollution
Provedor de dados: 31
Autores: Wu,   JunJie; Babcock,   Bruce A.
Because it is difficult to monitor emissions by sources in nonpoint pollution and to implement differential taxes and standards, uniform taxes and standards on chemical use are often proposed to control nonpoint pollution. This paper analyzes the relative efficiency of these uniform instruments in the presence of spatial heterogeneity. We demonstrate that the relative slopes of the marginal cost and benefits of chemical use are only one of the factors that affect the relative efficiency. Other factors include correlation between marginal costs and benefits, and the variability of both marginal benefits and the slopes of marginal benefits. In addition, we show how consideration of prohibitive taxes on low-productivity land and nonbinding standards on...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/18449

Evaluating Quebec's Preference for Alberta Beef
Provedor de dados: 31
Autores: Unterschultz,   James R.; Quagrainie,   Kwamena K.; Vincent,   Michel.
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/24077

Payoffs to Investments in Agricultural Technology in Sub-Saharan Africa
Provedor de dados: 31
Autores: Oehmke,   James F.; Crawford,   Eric W.
Tipo: Working or Discussion Paper
Palavras-chave: Research and Development/Tech Change/Emerging Technologies; Downloads July 2008-June 2009: 7.
Ano: 1996
URL: http://purl.umn.edu/11411

Partnerships With Industry: The Essential Ingredient for Agribusiness Education
Provedor de dados: 31
Autores: Litzenberg,   Kerry K.; Dunne,   Anthony J.
This paper examines the important issues of establishing partnerships between agribusiness education programs and industry representatives including the benefits to firms, faculty and students. Detailed information is presented on how these partnerships are developed and implemented.
Tipo: Journal Article
Palavras-chave: Agribusiness education; Agribusiness internship; Agribusiness; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/90397

Finding the Balance Between Agricultural and Trade Policy: Rwanda Coffee Policy in Flux
Provedor de dados: 31
Autores: Tardif-Douglin,   David; Ngirumwami,   Jean Leonard; Shaffer,   James D.; Murekezi,   Anastase; Kampayana,   Theobald.
Coffee is the principal source of foreign exchange for Rwanda. Over the years the predominating coffee policy has been to remunerate coffee producing highly to ensure sufficient production and foreign exchange receipts. The current policy debate focuses on whether the government can remove or modify coffee laws in existence since 1978 in such a way as to reduce the burden of the State and return crop choice to farmers without bringing about a catastrophic collapse in foreign exchange inflows.
Tipo: Report
Palavras-chave: Food security; Food policy; Trade policy; Agricultural and Food Policy; International Relations/Trade; F14.
Ano: 1996
URL: http://purl.umn.edu/54691

PRODUCTIVITY GROWTH, TECHNOLOGY PROGRESS, AND EFFICIENCY CHANGE IN CHINESE AGRICULTURAL PRODUCTION FROM 1984 TO 1993
Provedor de dados: 31
Autores: Mao,   Weining; Koo,   Won W.
This study applies a Data Envelopment Analysis (DEA) approach to analyze total factor productivity, technology, and efficiency changes in Chinese agricultural production from 1984 to 1993. Twenty- nine provinces in China were classified into advanced-technology and low-technology categories.  The Malmquist productivity measures were decomposed into two components: technical change index and efficiency change index.  The results showed that total factor productivity has risen in most provinces for both technology categories.  Technical progress has been the most important factor to Chinese agricultural productivity growth since 1984 and will remain crucial to productivity growth in low-technology provinces.  Low efficiency in many important agricultural...
Tipo: Working or Discussion Paper
Palavras-chave: Chinese agriculture; Total Factor Productivity (TFP); Technology; Technical efficiency; Data Envelopment Analysis (DEA).; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/23442

Macroeconomic Policy and Agricultural Cycles in Australia and the United States
Provedor de dados: 31
Autores: Hallberg,   Milton C.; Herendeen,   James B.
The agricultural economies of Australia and the United States experienced a major boom in the 1970s and a major bust in the 1980s. This paper examines the contribution of macroeconomic policy to these phenomena in the two countries over the last twenty years. We find that the observed agricultural cycles in the two countries were in part the unintended consequences of macroeconomic policies pursued for other reasons. Agriculture in both countries is heavily dependent on export demand and is highly capital intensive. Macroeconomic policies affecting exchange rates and interest rates are thus of considerable importance to these sectors. Implications for agricultural policy are also discussed.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/12299

Agricultural R&amp;D and Economic Growth
Provedor de dados: 31
Autores: Dinopoulos,   Elias.
The paper develops a dynamic general-equilibrium model of Schumpeterian growth which is fueled by industrial and agricultural R&amp;D. The former is private and results in better production processes, whereas the latter is government-financed (public and applied) R&amp;D and generates better crop varieties. The arrival of innovations in either sector is stochastic. The model is used to calculate the steady-state equilibrium and the growth-maximizing mix of agricultural and industrial R&amp;D investments. It is also used to highlight the properties of social rates of return (ROR) of R&amp;D which are based on partial-equilibrium calculations. These measures overestimate the true agricultural social ROR and underestimate the true industrial social ROR of...
Tipo: Report
Palavras-chave: Food security; Food policy; Research and development; Economic growth; International Development; Research and Development/Tech Change/Emerging Technologies; Downloads July 2008 - June 2009: 14; Q16.
Ano: 1996
URL: http://purl.umn.edu/54690

FACTORS INFLUENCING CONSUMERS' LIKELIHOOD OF PURCHASING SPECIALTY FOOD AND DRINK PRODUCTS ON-LINE: RESULTS OF CONSUMER REVIEWS OF 12 SELECTED SITES
Provedor de dados: 31
Autores: White,   Gregory K.
A total of twelve companies marketing specialty food and drink products on the World Wide Web were identified for this study. Four each marketed coffee, salsa, and seafood. Over a three week period, 163 respondents completed a total of 973 site evaluations. While respondents preferred to purchase products from a retail store, the majority identified at least one product from the sites which they would likely purchase on-line in the next six months. Respondents who regularly purchase one of the products monthly or more often were significantly more likely to make an on-line purchase in the future than those who purchase the product less frequently. Respondents who rated the overall appeal of a company's WWW site as good or excellent were nearly six times as...
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/27893

DOES THE PRESS SHAPE OR REFLECT NATIONAL VALUES?
Provedor de dados: 31
Autores: Hering,   Hasso.
Tipo: Conference Paper or Presentation
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/17289

An Evaluation of Soil Test Information in Agricultural Decision Making
Provedor de dados: 31
Autores: Babcock,   Bruce A.; Carriquiry,   Alicia L.; Stern,   Hal S.
The value of soil-test information in planning fertilizer application levels is determined by using agricultural field-plot data to estimate the posterior distribution of mean soil-nitrate concentrations at a give location.  Optimal decisions concerning fertilizer application levels are made with respect to this posterior distribution.  Average reductions in fertilizer application rates range from 15 to 41 percent, depending on the form of prior information that is available.  These reductions are achieved by increasing the variability of application rates over time. Disregarding the uncertainty that remains after the soil testing significantly overstates the expected benefits of soil testing.
Tipo: Working or Discussion Paper
Palavras-chave: Bayesian methods; Fertilizer rates; Posterior distributions; Soil tests; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/18633

ORGANIZED SYMPOSIA: ANNUAL MEETINGS, SAEA, GREENSBORO, NORTH CAROLINA, FEBRUARY 1996
Provedor de dados: 31
New opportunities for serving the agricultural economics profession, Walter J. Armbruster; Emerging technology and distance learning education: applications in teaching and extension, Kerry Litzenberg; Prospects for rural revitalization in the south, Donald R. McDowell; Impact of 1995 farm bill on southern commodities, Ron Knutson; The changing structure of the U.S. and southeastern livestock industries: outlook, issues, and coping with change, David P. Anderson; Interdisciplinary research: promoting cooperation with other disciplines, Randall Little; Flow control and the political economy of solid waste management, Ted Feitshans; Has NAFTA flooded the playing field? Trade liberalization's impact on price, profits, and employment, Glenn C. W. Ames;...
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/15248

A PREVIEW OF THE 1996 FARM PROGRAM PROVISIONS
Provedor de dados: 31
Autores: Schweikhardt,   David B.; Batie,   Sandra S.; Doering,   Otto C., III; Jones,   Bob F.
The U.S. House of Representatives and Senate have written farm bills that contain major revisions in farm commodity programs. Differences in these bills, House bill HR 2854 and Senate bill S 1541, must now be resolved by a Conference Committee, approved by a final vote of both houses of Congress, and signed by the President. Though differences in the bills do exist, the bills contain many similar provisions that appear likely to be included in the final version of the bill. This paper summarizes the major provisions of these bills and identifies areas where differences must be resolved by the Conference Committee.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/11609

Contents Pages
Provedor de dados: 31
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/12305

AGRICULTURAL POLICY REFORM IN THE UNITED STATES: AN UNFINISHED AGENDA
Provedor de dados: 31
Autores: Stuart,   Kimberly; Runge,   C. Ford.
The paper is divided into three sections: a discussion of the major provisions of the FAIR act of 1996 [Federal Agriculture Improvement and Reform Act of 1996]; a review of the political forces leading up to it; and a discussion of reforms that could extend the incipient agenda that it represents.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/14360

HOUSEHOLD DEMAND FOR FINFISH: A GENERALIZED DOUBLE-HURDLE MODEL
Provedor de dados: 31
Autores: Yen,   Steven T.; Huang,   Chung L.
This study estimates household demand for finfish in the United States using a limited dependent variable model that accounts for both participation and consumption decisions and also accommodates nonnormal heteroskedastic errors. Results suggest that own-price elasticity is near unitary and income elasticity is small. Price of finfish, shopping frequency, Northeast, Black and other non-Whites, and the life-cycle variable “"young, single, no children”" are they key factors that affect significantly both the probability of participation and the level of finfish consumption. Furthermore, a variable may exert opposite effects on the probability and level of consumption.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics; Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/31034

MANAGING INTERACTIONS BETWEEN HOUSEHOLD FOOD SECURITY AND PRESCHOOLER HEALTH
Provedor de dados: 31
Autores: Haddad,   Lawrence James; Bhattarai,   Saroj; Immink,   Maarten; Kumar,   Shubh K.
Data from Ethiopia, the Philippines, and Pakistan are used in this paper to examine the complex interaction of illness and lack of food on malnutrition rates among preschool children. The paper finds that when diarrhea is prevalent, the effects of food shortages on malnutrition are worse, and when food is scarce, the effects of diarrhea on malnutrition are worse. Policymakers not only must aim to increase incomes and food consumption, but also to assure access to health care, clean water, and sanitation.
Tipo: Working or Discussion Paper
Palavras-chave: Food Security and Poverty.
Ano: 1996
URL: http://purl.umn.edu/16234

ECONOMIC IMPACT OF RAILROAD ABANDONMENT: CARRINGTON-TO-TURTLE LAKE RAIL LINE; SUMMARY
Provedor de dados: 31
Autores: Honeyman,   Joel S.; Bangsund,   Dean A.; Leistritz,   F. Larry.
The Carrington-to-Turtle Lake rail line serves five agricultural shippers in a four county area in central North Dakota. Service on the line has been affected by recent embargoes, floods, and poor, deteriorating track conditions.  The line is a strong candidate for abandonment as efforts to rehabilitate the line have lacked financial support.  Prior to this study, a benefit/cost study, which compares benefits and costs of a rail line reconstruction, was performed for the rail line in an attempt to secure financial assistance for rehabilitation. Railroad abandonment impacts rural communities and local economies in a variety of ways.  Businesses that use rail for transportation usually experience a change in their shipping options.  Instead of sending and/or...
Tipo: Working or Discussion Paper
Palavras-chave: Rail abandonment; Economic impact; Rural communities; Community/Rural/Urban Development; Public Economics.
Ano: 1996
URL: http://purl.umn.edu/23108

THE CHANGING RELATIONSHIP BETWEEN FEDERAL, STATE AND LOCAL GOVERNMENTS
Provedor de dados: 31
Autores: Penny,   Timothy J.
Tipo: Conference Paper or Presentation
Palavras-chave: Public Economics.
Ano: 1996
URL: http://purl.umn.edu/17286

WORK-LIFE: AN INTERPLAY OF ISSUES
Provedor de dados: 31
Autores: Hendel,   Patricia T.
Tipo: Conference Paper or Presentation
Palavras-chave: Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/17281

Effects of Market Reform on Access to Food by Low-Income Households: Evidence from Four Countries in Eastern and Southern Africa
Provedor de dados: 31
Autores: Jayne,   Thomas S.; Rubey,   Lawrence; Tschirley,   David L.; Mukumbu,   Mulinge; Chisvo,   Munhamo; Santos,   Ana Paula; Weber,   Michael T.; Diskin,   Patrick K.
Tipo: Working or Discussion Paper
Palavras-chave: Food Consumption/Nutrition/Food Safety; Downloads June 2008 - June 2009: 10.
Ano: 1996
URL: http://purl.umn.edu/11456

New Generation Cooperatives and Cooperative Theory
Provedor de dados: 31
Autores: Harris,   Andrea; Stefanson,   Brenda; Fulton,   Murray E.
North Dakota and Minnesota are currently witnessing a renewal in the growth of cooperative enterprises. At the heart of this renewal lies the so-called New Generation Cooperative (NGC), a term that has been applied to the dozens of value-added processing, selected membership cooperatives that have recently formed in the region's agricultural sector. A key organizational feature of NGCs is the linking of producer capital contributions and product delivery rights. This paper describes the organizational features of NGCs and positions them in the broader context of cooperative incentive structures, governance structures, and the cooperative development process. More generally, the paper uses NGCs as a lens through which important elements of cooperative...
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/46188

Effects of Site-Specific Management on the Application of Agricultural Inputs
Provedor de dados: 31
Autores: Hennessy,   David A.; Babcock,   Bruce A.; Fiez,   Timothy E.
Site-specific management of inputs in agricultural production is receiving increasing attention because of new technologies and concerns about excessive input use. This paper provides a microeconomic analysis of its implications. It shows that profit decreases with an increase in the variability of input requirements, but that the input and production effects can be quite complicated. The effects of moving from uncertainty about input requirements to variable requirements are also identified. An empirical study of nitrogen fertilization suggests that sitespecific management may reduce input use substantially, but the production and profitability impacts may not be large.
Tipo: Working or Discussion Paper
Palavras-chave: Negative externality; Site-specific management; Uncertainty; Variability; Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18521

STRUCTURAL CHANGE IMPLICATIONS FOR SMALL FARMS: DISCUSSION
Provedor de dados: 31
Autores: Hinson,   Roger A.
Tipo: Journal Article
Palavras-chave: Farm Management.
Ano: 1996
URL: http://purl.umn.edu/15242

AGRICULTURAL LOAN OFFICERS' ROLES IN COOPERATIVE INVESTMENT IN NORTH DAKOTA
Provedor de dados: 31
Autores: Wilson,   Brooks M.; Cobia,   David W.
We surveyed agricultural loan officers and their supervisors in North Dakota to learn what factors influenced the decision to make loans to farmers investing in new agricultural cooperatives. We found that the Farm Credit Services and other large institutions made a disproportionately large share of the loans.  Furthermore, institutions with minimal equity, but with low levels of non-current loans and a high return on equity, were more likely than others to make the loans.  Experienced agricultural loan officers and those who attended a cooperative's information meeting or reviewed the business plan were more likely to make loans.  Loan officers granted loans to applicants who met conservative lending criteria.  The decision was not based on the loan...
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural Finance; Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/23207

National Market Analysis for Southwestern Herbs
Provedor de dados: 31
Autores: Falk,   Constance L.; Meeks,   Shaun; Enos,   Tomas.
Tipo: Working or Discussion Paper
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/23957

HACCP as a Regulatory Innovation to Improve Food Safety in the Meat Industry
Provedor de dados: 31
Autores: Unnevehr,   Laurian J.; Jensen,   Helen H.
The current system of meat inspection in the United States does not adequately address the problem of microbial food-borne pathogens.  The application of Hazard Analysis Critical Control Point (HACCP) systems to control and reduce the incidence of pathogens is included in proposed regulations for safety in meat products.  This type of regulatory intervention combines control of process and product, and offers a regulatory innovation when the costs of hazard detection are high and the exact benefits associated with any particular standard are uncertain but potentially large.  Although command and control standards may be appropriate for control of food-borne pathogens, more consideration might be given to combining these standards with incentives to improve...
Tipo: Working or Discussion Paper
Palavras-chave: Food Consumption/Nutrition/Food Safety; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18446

A NOTE ON HIGH DISCOUNT RATES AND DEPLETION OF PRIMARY FORESTS
Provedor de dados: 31
Autores: Bulte,   Erwin H.; van Soest,   Daan P.
Conventional wisdom implies that high discount rates accelerate depletion of tropical forests. As shown in this article, this result does not necessarily hold in a two-state variable model that distinguishes between primary and secondary forest stocks. In the context of a fixed concession period and imperfect government control, logging of primary forests may be both accelerated and depressed as discount rates increase.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/31026

Mycotoxin Contamination in Grains; Papers presented at the 17th ASEAN Technical Seminar on Grain Postharvest Technology, Lumut, Malaysia, 25-27 July 1995
Provedor de dados: 31
Tipo: Report
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/113905

Marketing Systems, Performance and Impediments to Product Differentiation
Provedor de dados: 31
Autores: Wright,   Vic.
The structure of the agriculture sector in Australia appears to pose a fundamental constraint to 'product marketing' and 'value-adding' initiatives. A case is presented in this paper for the degree of search activity for differentiation and expansion opportunities to be related to measures of performance. Criteria are presented for the identification of the appropriate market level for an organisation to target within a vertical marketing system and these are then analysed with a view to identifying appropriate grounds for policy intervention by government to modify incentives in such systems. It is argued that grounds can exist for intervention because of increased consumer information even in markets which are contestable and that agribusiness provides...
Tipo: Journal Article
Palavras-chave: Marketing.
Ano: 1996
URL: http://purl.umn.edu/12406

COMPUTER SCIENCE FOR AGRO-ENVIRONMENTAL FARM MANAGEMENT; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: Ciani,   Adriano.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Farm Management.
Ano: 1996
URL: http://purl.umn.edu/14397

MINNESOTA ETHANOL PRODUCTION AND IT'S TRANSPORTATION REQUIREMENTS
Provedor de dados: 31
Autores: Fruin,   Jerry E.; Rotsios,   Konstantinos; Halbach,   Daniel Walter.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/14018

ANALYSIS OF RECENT OPTIONS FOR CHANGES IN U.S. DAIRY POLICY
Provedor de dados: 31
Autores: Cox,   Thomas L.; Sumner,   Daniel A.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/16967

Environmental and Regional Problems of Contaminated Sites
Provedor de dados: 31
Autores: Kramer-Eis,   Helmut; Karl,   Helmut.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/18782

SUSTAINABLE DEVELOPMENT OF RAINFED AGRICULTURE IN INDIA
Provedor de dados: 31
Autores: Kerr,   John M.
India’s agricultural growth has been sufficient to move the country from severe food crises of the 1960s to aggregate food surpluses today. Most of the increase in agricultural output over the years has taken place under irrigated conditions. The opportunities for continued expansion of irrigated area are limited, however, so Indian planners increasingly are looking to rainfed, or unirrigated agriculture to help meet the rising demand for food projected over the next several decades. Rainfed areas are highly diverse, ranging from resource-rich areas with good agricultural potentially are highly productive and already have experienced widespread adoption of improved seeds. In drier, less favorable areas, on the other hand, productivity growth has lagged...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy; International Development.
Ano: 1996
URL: http://purl.umn.edu/16104

THE 1996 FARM BILL: IMPACTS FOR RURAL AMERICA
Provedor de dados: 31
Autores: Hassebrook,   Chuck.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/17290

Determinants of Repayment Performance in Credit Groups: The Role of Program Design, Intra-group Risk Pooling, and Social Cohesion in Madagascar
Provedor de dados: 31
Autores: Zeller,   Manfred.
Group lending has received much attention in recent years because of its perceived potential in providing financial services to poor households that lack traditional collateral. The analysis in this paper focuses on the effects of program design, community and group characteristics on the repayment performance of groups, using a data set on groups from six different lending programs in Madagascar. The results show that socially cohesive groups pool risks by diversifying the members’ asset portfolio so that their repayment performance is improved even in communities with high-risk exposure.
Tipo: Working or Discussion Paper
Palavras-chave: Community Participation; Madagascar; Credit; Financial Economics.
Ano: 1996
URL: http://purl.umn.edu/97299

Agricultural Policies and Soil Degradation in Western Canada: An Agro-Ecological Economic Assessment: Project Summary
Provedor de dados: 31
Autores: Bouzaher,   Aziz; Shogren,   Jason F.; Holtkamp,   Derald; Gassman,   Philip W.; Archer,   David W.; Lakshminarayan,   P.G.; Carriquiry,   Alicia L.; Reese,   Randall; Kakani,   Dharmaraju; Furtan,   William Hartley; Izaurralde,   R. Cesar; Kiniry,   James R.
This report describes an integrated agro-ecological modeling system that was developed to assess the potential economic and soil erosion impacts of different agricultural policies for the Canadian prairie provinces of Alberta, Saskatchewan, and Manitoba. The system was constructed by linking erosion metamodels (response functions), based on multiple simulations of the USDA Erosion Productivity Impact Calculator (EPIIC), with a modified version of Agriculture Canada's Canadian Regional Agriculture Model (CRAM) denoted as RS-CRAM (resource sensitive CRAM). A summary of both the environmental and agricultural decision (RS-CRAM) components are presented, including a description of the modifications and enhancements that were made to CRAM.  Results of policy...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/18660

NONPARAMETRIC MEASURES OF THE IMPACTS OF PUBLIC RESEARCH EXPENDITURES ON AUSTRALIAN BROADACRE AGRICULTURE: PRELIMINARY RESULTS
Provedor de dados: 31
Autores: Cox,   Thomas L.; Mullen,   John D.; Hu,   Wensheng.
Nonparametric methods are used to measure the impacts of public research expenditures on Australian broadacre agriculture over the 1953-94 period. The data and methods used were unable to recover separate impacts due to extension under several alternative specifications. Preliminary results using both unrestricted and 30 year lagged specifications of the research impacts on productivity suggest that while certain aspects of the recovered multi-input/output technologies are quite robust to alternative specifications (in particular, the associated Malmquist total factor productivity indexes), other aspects are less stable (in particular, the indexes on input (and to a lesser extent, output) biased technical change).
Tipo: Working or Discussion Paper
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/12656

Food Marketing and Pricing Policy in Eastern and Southern Africa: Lessons for Increasing Agricultural Productivity and Access to Food
Provedor de dados: 31
Autores: Jayne,   Thomas S.; Jones,   Stephen P.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy; Food Security and Poverty; Downloads July 2008 - July 2009: 10.
Ano: 1996
URL: http://purl.umn.edu/11337

Tiger or turtle?: exploring alternative futures for Egypt to 2020
Provedor de dados: 31
Autores: Lofgren,   Hans; Robinson,   Sherman; Nygaard,   David F.
Includes bibliographical references (p. 20-22). In association with the Economic Research Forum for the Arab Countries, Iran and Turkey. Published, in 1998, in Raed Safadi, ed. Opening doors to the world: a new trade agenda for the Middle East. pp. 167-197. (Chapter 5).
Tipo: Working or Discussion Paper
Palavras-chave: Equilibrium (Economics) -- Egypt; Agriculture -- Economic aspects -- Egypt; Water-supply; Agricultural -- Egypt; Computable general equilibrium (CGE); International Development.
Ano: 1996
URL: http://purl.umn.edu/97765

DISCUSSION: ANALYSING THE POTENTIAL FOR INCREASED TRADE: MODELLER'S PERSPECTIVE
Provedor de dados: 31
Autores: Young,   Robert E., II.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16956

FACTORS THAT INFLUENCE PRICES PRODUCERS RECEIVE FOR HOGS: STATISTICAL ANALYSIS OF KILLSHEET AND SURVEY DATA
Provedor de dados: 31
Autores: Lawrence,   John D.
This paper evaluates the results of a survey of Iowa pork producers, examining potential price discrimination by packers. Prices varied greatly across producers, and the examined variables explain just over half of the variation.  Factors under the producer's control were the most significant variables and accounted for the vast majority of the explainable difference in price among producers. Packer buying systems also accounted for some difference in producer prices.  Finally, variables related to operation size, while statistically significant, increased the explanatory values of the equation very little.
Tipo: Working or Discussion Paper
Palavras-chave: Market access; Carcass merit; Hog marketing; Price determination; Price discrimination; Demand and Price Analysis; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/18276

SWINE PRODUCTION NETWORKS IN MINNESOTA: RESOURCES FOR DECISION MAKING
Provedor de dados: 31
Autores: Koehler,   Bob; Lazarus,   William F.; Buhr,   Brian L.
Swine production networks are becoming a significant part of the Minnesota swine industry, with at least 30 production networks in operation as of late 1995.  There are probably at least 450 producers involved, representing at least nine percent of the state s sow inventory. Not counted in these numbers are a few other networks involved only in data-sharing or marketing as well as a large number of farmer-to-farmer custom/contract arrangements. We interviewed 20 producers involved in networks.  None of the networks we surveyed had been in operation very long, with most in business no more than a year or two.  It is too early to predict what their long-term success will be.  Most of the respondents seemed pleased with the arrangements so far.  An example...
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/14232

Research interventions to strengthen irrigators' associations
Provedor de dados: 31
Autores: Lauraya,   Fay M.; Sala,   Antonio Lea R.; Wijayaratna,   C.M.
Tipo: Book
Palavras-chave: Irrigation management; Water distribution; Financing; Data collection; Operations; Maintenance; Performance indexes; Privatization; Farmer-agency interactions; Institution building; Farmers associations; Training; Participatory management; Leadership; Farm Management; Institutional and Behavioral Economics; Research and Development/Tech Change/Emerging Technologies; Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/113616

Incorporating Nutrition into Agricultural Economics Research in the Caribbean
Provedor de dados: 31
Autores: McIntosh,   Curtis; Pemberton,   Carlisle A.; Henderson-Brewster,   Charlene.
Tipo: Journal Article
Palavras-chave: Nutrition; Food Consumption; Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/45591

THE ROLE OF RELIGION IN PUBLIC POLICY DEBATE
Provedor de dados: 31
Autores: Farley,   Gary E.
Tipo: Conference Paper or Presentation
Palavras-chave: Public Economics.
Ano: 1996
URL: http://purl.umn.edu/17274

A Model of Choice between Current Consumption and Future Economic Growth
Provedor de dados: 31
Autores: Arifa,   Ali; Gan,   Christopher E.C.
This paper uses a newly proposed working definition of sustainability based upon the Rawlsian principle of justice to develop a simple aggregative model of growth. The model explores the issue of choice between current consumption and future economic growth through changes in capital stock. It is shown that sustainable growth limits the range of this choice, but does not determine it. The model used is only illustrative, but may be useful as a pointer for future research and comparison of sustainability modelling techniques.
Tipo: Journal Article
Palavras-chave: International Development.
Ano: 1996
URL: http://purl.umn.edu/12303

THE DEMAND FOR LDC EXPORTS OF PRIMARY COMMODITIES: THE CASE OF THE PHILIPPINES
Provedor de dados: 31
Autores: Warr,   Peter G.; Wollmer,   Frances.
The economic case for taxing exports rests on the elasticity of demand for the exports concerned, but the true values of these elasticities are controversial. The international demand for Philippine exports of coconut products is examined in this paper. The hypothesis that the Philippines is a 'small country' exporter of coconut products is rejected using the specification of a price-normalised demand equation and the implications of this finding are discussed.
Tipo: Journal Article
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/22361

POTENTIAL APPLICATIONS FOR SHARED-SERVICES COOPERATIVES IN NORTH DAKOTA
Provedor de dados: 31
Autores: Bhuyan,   Sanjib.
The principal goal of shared-services cooperatives is to capture savings through lower administrative costs, quantity purchasing discounts, sharing fixed costs, and assured levels of business with vendors and suppliers.  Although the idea of cooperation is not new in North Dakota, the question raised here is whether there is potential applications for non-agricultural shared-services cooperatives that provide services that are absent or inadequate in rural communities in the state. It is concluded that there is potential application for shared-services cooperatives in both public and private sectors in North Dakota based on opportunities to share fixed costs and to capitalize on pecuniary economies of size.
Tipo: Working or Discussion Paper
Palavras-chave: Shared-services cooperatives; Non-agricultural cooperatives; North Dakota; Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/23101

ARER REVIEWERS, JUNE 1995-MAY 1996
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/31411

User's Guide to C-SIDE, A (Software for Intake Distribution Estimation)
Provedor de dados: 31
Autores: Nusser,   Sarah M.; Carriquiry,   Alicia L.; Dodd,   Kevin W.; Fuller,   Wayne A.; Jensen,   Helen H.
Tipo: Working or Discussion Paper
Palavras-chave: Food Consumption/Nutrition/Food Safety.
Ano: 1996
URL: http://purl.umn.edu/18640

Analyzing the Economic Impact of Climate Change on Global Timber Markets
Provedor de dados: 31
Autores: Sohngen,   Brent; Sedjo,   Roger A.; Mendelsohn,   Robert; Lyon,   Kenneth S.
In this paper, we show how ecological and economic models can be linked to determine the economic impact of climate change on global timber markets. We begin by discussing some of the important issues relevant to global impact analyses such as this. We then outline our general modeling framework and discuss the particular models that will be used. Finally, we discuss some of the important issues involved with linking the two types of models.
Tipo: Working or Discussion Paper
Palavras-chave: Climate change; Economic model; Timber; Timber market; Dynamic; Optimal control; Environmental Economics and Policy; Q10; Q23; Q24.
Ano: 1996
URL: http://purl.umn.edu/10462

DISCUSSION: CONTEMPORARY DAIRY POLICY CHANGES IN CANADA: A WESTERN CANADA PERSPECTIVE
Provedor de dados: 31
Autores: Schildroth,   John.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/16952

AN ECONOMIC ANALYSIS OF IMPORT DEMAND FOR CANOLA OIL IN THE UNITED STATES
Provedor de dados: 31
Autores: Lordkipanidze,   Nazibrola; Epperson,   James E.; Ames,   Glenn C.W.
The study analyzes the impacts of economic and noneconomic factors on import demand for canola oil.  The import demand pattern for canola oil in the United States is influenced by changes in the world's oilseeds  market and government oilseeds programs and policies,  including tariffs and subsidies.  The U.S. import demand for canola oil was specified as a function of its own import price, prices of substitute edible vegetable oils (soybean oil and palm oil), disposable personal income, the Canadian-U.S.   (Missing one table)
Tipo: Working or Discussion Paper
Palavras-chave: Canola oil; Demand; Demand and Price Analysis; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16661

TRENDS IN CONSUMER ACCEPTANCE AND AWARENESS OF BIOTECHNOLOGY
Provedor de dados: 31
Autores: Hoban,   Thomas J.
The promise of agricultural biotechnology has become reality. Foods produced through biotechnology will become increasingly common in the food production and distribution system. Consumer reaction to these foods will be an important factor in determining the ultimate success of the biotechnology enterprise. This paper reviews trends in U.S. consumers' awareness and acceptance of biotechnology.  Results of several national surveys show that biotechnology has not been an issue for the vast majority of consumers. Most have a positive attitude about biotechnology. This paper also presents some implications for future research and educational programs.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/27786

Impact of National Generic Dairy Advertising on Dairy Markets, 1984-95
Provedor de dados: 31
Autores: Kaiser,   Harry M.
Tipo: Technical Report
Palavras-chave: Livestock Production/Industries; Marketing.
Ano: 1996
URL: http://purl.umn.edu/122830

POLICY DEVELOPMENT AND PROGRAM ASSESSMENT NEEDS: A POLICY ANALYST PERSPECTIVE
Provedor de dados: 31
Autores: Crawford,   Terry L.; Stillman,   Richard.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/16962

La dévaluation du franc CFA: quelles perspectives pour une intensification durable de la production agricole dans le bassin arachidier du Sénégal?
Provedor de dados: 31
Autores: Diagana,   Bocar N.; Kelly,   Valerie A.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management; Downloads July 2008-June 2009: 6.
Ano: 1996
URL: http://purl.umn.edu/11351

AN INQUIRY INTO THE RELATIONSHIP OF WETLAND REGULATIONS AND PROPERTY VALUES IN MINNESOTA
Provedor de dados: 31
Autores: Holtman,   Charles; Taff,   Steven J.; Meyer,   Aaron J.; Leitch,   Jay A.
Ownership in property can be thought of as ownership of the rights to the "incomes" associated with different uses of the property.  Each potential use has a separate economic value, which can be ranked if put into money terms.  The property's market value is usually held to be the highest income on that ranking. Wetland protection regulations might shift the ownership of some of these rights from private to public entities or restrict the exercise of some rights.  This can result in a reduction of the property's market value, if the regulation precludes access to the income from the highest ranking use.  A regulation can never increase the economic value of a property from the owner's perspective. Whether or not a reduction in property value is considered...
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/13816

Consumer Preferences for Biopreservatives in Beef and Pork Packaging and Testing the Importance of Product Origin
Provedor de dados: 31
Autores: Unterschultz,   James R.; Quagrainie,   Kwamena K.; Veeman,   Michele M.
Recent food science research on packaging at the University of Alberta has focused on the use of biological agents (biopreservatives) to extend meat shelf life. This potential technology involves the introduction of microbial organisms into food packages to control or inhibit the growth of disease causing organisms such as Escherichia coli (commonly associated with hamburger disease). Biopreservatives are not yet in commercial use. The study evaluated Western Canadian consumers' preferences regarding the potential use of biopreservatives in fresh red meat packages (beef and pork). The study also assessed the effect of product origin on consumers' purchasing decisions; in particular, whether there is an increasing or decreasing probability of purchase if a...
Tipo: Working or Discussion Paper
Palavras-chave: Demand and Price Analysis.
Ano: 1996
URL: http://purl.umn.edu/24043

An Economic Analysis of Generic Egg Advertising in California, 1985-1995
Provedor de dados: 31
Autores: Schmit,   Todd M.; Reberte,   J. Carlos; Kaiser,   Harry M.
Tipo: Technical Report
Palavras-chave: Livestock Production/Industries; Marketing.
Ano: 1996
URL: http://purl.umn.edu/122834

OPTIMIZING COMPLEX BIOECONOMIC SIMULATIONS USING AN EFFICIENT SEARCH HEURISTIC
Provedor de dados: 31
Autores: Kazmierczak,   Richard F., Jr.
For simulation to be truly useful for investigating many problems in agricultural economics, non-simplifying optimization techniques need to be employed.  General methods for simulation optimization that do not inhibit system characterization or analysis are available, and they would appear to provide much of the mathematical and optimizing rigor demanded by economists.  This paper describes the theory and algorithm of a robust and efficient simulation optimization approach, the Complex Method.  An example of implementing the algorithm is illustrated using a pest management problem.
Tipo: Working or Discussion Paper
Palavras-chave: Simulation; Optimization; Complex Method; Hill-climbing; Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/31661

SPATIAL MARKET INTEGRATION: DEFINITION, THEORY, AND EVIDENCE
Provedor de dados: 31
Autores: McNew,   Kevin.
A point-space model of interregional trade is used to define market integration and to explore its implications for modeling spatial price relationships.  This analysis indicates that spatial prices are related nonlinearly, contrary to much of the work on spatial price analysis which uses linear models.  As an empirical example, corn market integration along the Mississippi River is examined during the Midwest flood of 1993.  Higher transport costs during this period significantly reduced the extent of integration and thereby decreased excess demand shock transference across regions.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/31646

Economic Evaluation of Plant Stress Impacts in the Texas North Plains Region
Provedor de dados: 31
Autores: Middleton,   Marty; Segarra,   Eduardo; Johnson,   Phillip N.; Haynes,   Aubrey.
Tipo: Report
Palavras-chave: Environmental Economics and Policy; Production Economics.
Ano: 1996
URL: http://purl.umn.edu/53172

REASONABLE VALUE AND THE ROLE OF NEGOTIATION IN AGRICULTURE'S USE OF THE ENVIRONMENT
Provedor de dados: 31
Autores: Kazmierczak,   Richard F., Jr.; Hughes,   David W.
Social pressures to regulate agriculture's use of environmental resources have been building for many years and show no signs of abating.  While the agricultural and environmental communities can react to these events in many ways, perhaps the most promising avenue for resolving joint agricultural and environmental disputes lies with negotiated regulations mediated by governmental agencies.  When first conceived by Commons, negotiated regulation was seen as a way to achieve both efficient and equitable dispute resolution by directly using the preferences, skills, and operational knowledge of stakeholders.  This approach should be attractive to the agricultural community because it provides an opportunity to educate environmental groups about the...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/31691

Agricultural and Farmland Protection Planning: A Case Study in Orange County, New York
Provedor de dados: 31
Autores: Joyce,   Lucy T.; Bills,   Nelson L.
The Agricultural Protection Act, passed by the State Legislature in 1992, strengthened New York State's Agricultural Districts Law. One component of the Act provides for county Agricultural and Farmland Protection Boards to develop county agricultural and farmland protection plans. The Department of Agriculture and Markets encourages the development of such plans through a matching grants program. This paper discusses the tools and strategies county Agricultural and Farmland Protection Boards may use in their plan development process. It incorporates an overview of the evolution of state policy, social and economic trends affecting agriculture throughout the state, and resources currently available which may be brought to bear on the local planning...
Tipo: Working Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/121188

PROGRAM PARTICIPATION BEHVAIOR OF NONINDUSTRIAL FOREST LANDOWNERS: A PROBIT ANALYSIS
Provedor de dados: 31
Autores: Nagubadi,   Venkatarao; McNamara,   Kevin T.; Hoover,   William L.; Mills,   Walter L., Jr.
This study provides an analysis of nonindustrial private forest (NIPF) landowners' participation in forestry assistance programs. A probit model was used for data collected from a random sample of 329 Indiana landowners. The analysis revealed that total land owned, commercial reasons for ownership, government sources of information, and membership in forestry organizations influenced NIPF landowners' program participation. Age, fear of loss of property rights, and duration since the first wooded tract was acquired also influenced program participation. Location of landowners' residence on their wooded land and landowners' knowledge of and willingness to participate in a conservation easement influenced the participation in cost –share programs.
Tipo: Journal Article
Palavras-chave: Classified forestry programs; Cost-share programs; Nonindustrial private forest landowners; Participation behavior; Probit; Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/15126

FINPACK: THE POTENTIAL TO ADAPT IT FOR EUROPEAN UNION COUNTRIES; WITH A HISTORY OF THE DEVELOPMENT OF FINPACK WITHIN THE U.S. EXTENSION SYSTEM
Provedor de dados: 31
Autores: Ferrara,   Alessandro; Nordquist,   Dale W.; Ciani,   Adriano.
This work is structured in two parts.  The first shows, briefly, the role of the Cooperative Extension Service in US agriculture.  The second explains the main characteristics of the FINPACK software package and the potential to adapt it to European agriculture.  Between these two parts is a short summary of the role of FINPACK, and, more generally, of financial management in Extension Service activities. Note:  Appendix tables are not included in the machine readable file--contact the authors for copies.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural Finance.
Ano: 1996
URL: http://purl.umn.edu/13469

AN ARBITRAGE-FREE APPROACH TO QUASI-OPTION VALUE; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Coggins,   Jay S.; Ramezani,   Cyrus A.
In the presence of uncertainty and irreversibility, dynamic decision problems should not be solved using expected net present value analysis.  The right to delay a decision can be valuable.  We show that the value of this right equals Arrow and Fisher’s (1974) quasi-option value.  In a discrete model we show how to derive quasi-option value using methods from finance, methods that remove altogether the need to take expected values of future stochastic variables.  Two main findings are presented.  First, if the stochastic dynamic process underlying the problem is known, the Arrow and Fisher and Henry (1974) result that improper use of net present value leads to too much early development, is correct.  Second, if the process is not known perfectly, their...
Tipo: Working or Discussion Paper
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/14469

ECONOMICS OF HERBICIDE CONTROL OF LEAFY SPURGE (EUPHORBIA ESULA L.)
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Leitch,   Jay A.; Leistritz,   F. Larry.
Leafy spurge (Euphorbia esula L.), a widely established exotic, noxious, perennial weed, is a major threat to the viability of commercial grazing and to beneficial outputs of wildlands in the Upper Great Plains. Herbicide treatments are often recommended based upon measures of physical control rather than on economic criteria. A deterministic, bioeconomic model was developed to evaluate the economic viability of current herbicide control strategies for leafy spurge. Control viability is highly site specific but falls into three categories. First, broadcast herbicide treatment may result in positive net returns for some grazing situations, especially small infestations on highly productive land, in the Upper Great Plains. Second, treating the perimeter to...
Tipo: Journal Article
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/31025

FUTURE DIRECTIONS FOR THE GOVERNMENT IN AGRICULTURE
Provedor de dados: 31
Autores: Dunn,   James W.
The 1996 Farm Bill marks a new direction for the government in agriculture.  By decoupling payments from price levels for crops, it undermines long-run political support for programs.  Dairy price supports will end in 2000, and nutrition programs will be on a separate reauthorization schedule from farm programs.  Together, these actions should weaken the farm bill coalition, making the remaining programs much more difficult to reauthorize than in earlier years.  The 1996 Farm Bill may be the last farm bill of its kind and the beginning of the end to active government involvement in agricultural markets.
Tipo: Journal Article
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/31412

VALUING RISK TRADEOFFS AND VOLUNTARY INSECTICIDE REDUCTION
Provedor de dados: 31
Autores: Lohr,   Luanne; Park,   Timothy A.; Higley,   Leon.
Farmer's willingness to voluntarily reduce insecticide use is not considered when regulatory approaches to environmental protection are proposed.  Regulations that require behavior that would voluntarily be undertaken are excessive and economically inefficient. Using survey data from a contingent valuation scenario, we demonstrate the willingness of crop producers in four Midwestern states in the U.S. to trade yield losses for environmental risk reduction by eliminating an insecticide application.  The mean acceptable yield loss for a sample of 1,138 producers in Illinois, Iowa, Nebraska and Ohio is $8.25 per acre. Acceptable yield loss increases with the rated importance of environmental goods (fish, birds, mammals, native plants and endangered species),...
Tipo: Working or Discussion Paper
Palavras-chave: Decision models; Agriculture; Environmental protection; Risk; Contingent valuation; Crop Production/Industries; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/16671

MEETING NEW CHALLENGES  IN THE RETAIL FOOD BUSINESS
Provedor de dados: 31
Autores: Dunn,   Edward S., Jr.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/27778

Dairy Title: The Federal Agriculture Improvement and Reform Act of 1996
Provedor de dados: 31
Autores: Jesse,   Edward V.; Cropp,   Robert A.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/12722

The Effect of Choice Environment and Task Demands on Consumer Behavior: Discriminating Between Contribution and Confusion
Provedor de dados: 31
Autores: Swait,   Joffre; Adamowicz,   Wiktor L.
Tipo: Working or Discussion Paper
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/24091

TOWARD A VALUE FOR GUIDED RAFTING ON SOUTHERN RIVERS
Provedor de dados: 31
Autores: Bowker,   James Michael; English,   Donald B.K.; Donovan,   Jason A.
This study examines per trip consumer surplus associated with guided whitewater rafting on two southern rivers. First, household recreation demand functions are estimated based on the individual travel cost model using truncated count data regression methods and alternative price specifications. Findings show mean per trip consumer surplus point estimates between $89 and $286, depending on modeling assumptions and river quality. Magnitudes of these surpluses are very dependent on assumptions about the opportunity cost of time.
Tipo: Journal Article
Palavras-chave: Consumer surplus; Count data; Guided rafting; Travel cost; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/15127

Income and equity effects of crop productivity growth under alternative foreign trade regimes: a CGE analysis for the Philippines
Provedor de dados: 31
Autores: Bautista,   Romeo M.; Robinson,   Sherman.
"September 1996." Includes bibliographical references (p. 17-18). Published, in 1997, in Asian Journal of Agricultural Economics 2(2): 177-194.
Tipo: Working or Discussion Paper
Palavras-chave: Philippines -- Foreign economic relations; Philippines -- Economic conditions; Crop yields; Income -- Philippines; International Relations/Trade; Productivity Analysis.
Ano: 1996
URL: http://purl.umn.edu/97762

Mozambique's Food Security Success Story
Provedor de dados: 31
Autores: SIMA,   Technical Team.
Resultados das investigações do Projecto de Segurança Alimentar em Moçambique MAP-Direcção de Economía-Dpto. Estatística
Tipo: Report
Palavras-chave: Food security; Food policy; Mozambique; Food Security and Poverty; Q18.
Ano: 1996
URL: http://purl.umn.edu/55195

EXPERIMENTAL METHODS IN CONSUMER PREFERENCE STUDIES
Provedor de dados: 31
Autores: Fox,   John A.; Hayes,   Dermot J.; Shogren,   Jason F.; Kliebenstein,   James B.
Controlled experimental auctions can be used to elicit preferences for food products. We describe results from two series of experiments in which subjects revealed their willingness-to-pay for safer food. In one series, the risk reduction technology was not specified; in the other, it was identified as food irradiation. The results provide some evidence on the acceptability of food irradiation as a risk reduction technology.
Tipo: Journal Article
Palavras-chave: Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/27070

Valuation of Biodiversity for Use in New Product Research in a Model of Sequential Search
Provedor de dados: 31
Autores: Simpson,   R. David; Sedjo,   Roger A.
We develop a model of search in which a researcher chooses the size of sequential batches of samples to test. While earlier work has considered similar questions, the contribution of this paper is to use the search model to place a value on the marginal research opportunity. The valuation of such opportunities may be of little interest or relevance in many of the contexts in which search models are employed, but we apply our analysis to an area of considerable societal interest: the valuation of biological diversity for use in new product research. While data from which to make inferences are limited, we find that, using plausible estimates of relevant parameters, the value of biodiversity in these applications is negligible.
Tipo: Working or Discussion Paper
Palavras-chave: Biodiversity; Search; Sequential; Conservation incentives; Environmental Economics and Policy; D83; Q29.
Ano: 1996
URL: http://purl.umn.edu/10618

UNITED STATES AND CANADIAN AGRICULTURAL TRADE, TRANSPORTATION AND COMPETITION--POST NAFTA; PROCEEDINGS OF A SYMPOSIUM SPONSORED BY NC-179, "AGRICULTURAL AND RURAL TRANSPORTATION SYSTEMS," HELD IN MINNEAPOLIS, MINNESOTA, OCTOBER 6-7, 1995
Provedor de dados: 31
Autores: Fruin,   Jerry E.; Mussell,   Al.
International trade in grains and oilseeds is an issue of major importance both to the economies of the U.S. and Canada.  An important determinant in international trade flows and competitiveness is the grain transportation system and related infrastructure.  The international grain trade and the related transportation systems are changing rapidly.  These changes derive from changes in the economic situations of trading partners, alterations to agricultural, trade, and transportation policy, and shifts in the structure of markets for grain and grain transportation.  Understanding international competitiveness and future developments in agricultural trade requires an assimilation of these interrelated topics. This topic has been a research area of the...
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/13586

FEDERAL ENVIRONMENTAL POLICY: A SUMMARY OVERVIEW
Provedor de dados: 31
Autores: Carriker,   Roy R.
The National Environmental Policy Act (NEPA), which was signed into law on January 1, 1970, has come to be regarded as the first major piece of federal legislation to call for comprehensive attention to environmental concerns in the United States. During the two decades following enactment of NEPA, Congress adopted and then refined major legislation on nearly every aspect of environmental quality concerns: air pollution, water pollution, drinking water quality, hazardous waste management, wildlife protection, pesticide use, and several related problem areas. Current arguments for environmental regulatory reform are a phase in the continuing evolution of this body of federal environmental policy.
Tipo: Journal Article
Palavras-chave: Environmental policy; Environmental regulation; Regulatory reform; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/15231

SATISFACTION EVALUATION OF MILK HANDLERS BY SOUTHERN U.S. DAIRY FARMERS
Provedor de dados: 31
Autores: Sayers,   Dave M.; Kilmer,   Richard L.; Lee,   Jonq-Ying; Flambert,   Anouk M.
An ordered probit model is used to investigate the factors that determine post-choice satisfaction of southeastern U.S. dairy farmers with their milk handlers. The impact on farmer satisfaction of milk handler attributes, farm/farmer characteristics, and farm location is tested. Results support the hypothesis that mailbox price and the quality of service provided by milk handlers have a positive effect on satisfaction levels. Bargaining-operating cooperatives are negatively associated with farmer satisfaction when contrasted against independently owned milk handlers and bargaining-only cooperatives. Choice and the ability to switch milk handlers are also important determinants of farmer satisfaction.
Tipo: Journal Article
Palavras-chave: Bargaining-only cooperative; Bargaining-operating cooperative; Dairy; Proprietary milk handler; Satisfaction; Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/15124

THE CANADIAN DAIRY SECTOR: STRUCTURE, PERFORMANCE AND POLICIES
Provedor de dados: 31
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy; Industrial Organization.
Ano: 1996
URL: http://purl.umn.edu/16950

Front Materials
Provedor de dados: 31
Includes: Front Cover, Editorial Information, A Message from the Publisher, Contents Page
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/46184

An Ex Post Evaluation of Generic Egg Advertising in the U.S.
Provedor de dados: 31
Autores: Reberte,   J. Carlos; Schmit,   Todd M.; Kaiser,   Harry M.
Tipo: Technical Report
Palavras-chave: Livestock Production/Industries; Marketing.
Ano: 1996
URL: http://purl.umn.edu/122835

MAINE'S LOBSTER FISHERY - MANAGING A COMMON PROPERTY RESOURCE
Provedor de dados: 31
Autores: Wilson,   James A.
Tipo: Conference Paper or Presentation
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/17285

Agricultural Policies and Soil Degradation in Western Canada: An Agro-Ecological Economic Assessment: Report 4. Modifications to CRAM and Policy Evaluation Results
Provedor de dados: 31
Autores: Bouzaher,   Aziz; Shogren,   Jason F.; Holtkamp,   Derald; Gassman,   Philip W.; Archer,   David W.; Lakshminarayan,   P.G.; Carriquiry,   Alicia L.; Reese,   Randall; Kakani,   Dharmaraju; Furtan,   William Hartley; Izaurralde,   R. Cesar; Kiniry,   James R.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural and Food Policy; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/18674

NON-COMPENSATORY PREFERENCE STRUCTURES IN NON-MARKET VALUATION OF NATURAL AREA POLICY
Provedor de dados: 31
Autores: Lockwood,   Michael.
Non-compensatory preferences may form a significant component of individuals' values for non-market goods such as natural areas, especially in the context of a reduction in environmental quality. The widespread neglect of such preferences can result in erroneous estimates of changes in economic welfare. Non-market valuation using techniques such as contingent valuation therefore need to take into account the possibility that some individuals hold noncompensatory preferences. The formal structure of the lexicographic noncompensatory ordering is described, and the theoretical implications of an individual holding such preferences over some region of goods space is examined. A method for the empirical identification of non-compensatory preference orderings is...
Tipo: Journal Article
Palavras-chave: Environmental Economics and Policy; Institutional and Behavioral Economics.
Ano: 1996
URL: http://purl.umn.edu/22394

DISCUSSION: IMPACTS OF PAST U.S./CANADIAN DAIRY PROGRAMS ON STRUCTURE, EFFICIENCY AND TRADING RELATIONSHIPS
Provedor de dados: 31
Autores: Phillips,   Rick.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16961

ECONOMIC ANALYSIS AND THE SHAPING OF PUBLIC POLICY: A 1995 FARM BILL PERSPECTIVE
Provedor de dados: 31
Autores: O'Brien,   Patrick.
The 1995 Farm Bill debate proved different than many economists expected. It was overwhelmingly budget-driven. Few early concerns about the role of government, efficiency, equity, competitiveness, environment, rural development, and food were addressed. Economic analysis played a different role than anticipated. Models of who and how farm policy is made proved misleading; the debate circumvented the traditional process. Economic models were used more to perform budget accounting than substantive analysis. And their substantive analyses often failed to capture the attention of policymakers. Hence, while a reformist economist's dream, the bill leaves as many issues unanswered as it addresses.
Tipo: Journal Article
Palavras-chave: Economic analysis of public policy; Economic modeling; Farm policy making; Policy reform; Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/15240

The Economic Value of Patents, Licenses, and Plant Variety Protection
Provedor de dados: 31
Autores: Rausser,   Gordon C.; Small,   Arthur A.
While biotechnology creates new opportunities for agriculture, developments are impeded by confusion in the system for awarding intellectual property rights (IPRs) over agro-biotechnological innovations.  An intelligent redesign IPR system requires attention to how the definition of rights interacts with the market environment, generating incentives to create value.  A distinction is drawn between cost-reducing innovations that increase the efficiency of producing homogeneous outputs and value-adding innovations that create entirely new types of differentiated outputs.  A reform is proposed that would require the mandatory sublicensing of genes and certain core enabling technologies for creating genetically altered organisms.
Tipo: Working or Discussion Paper
Palavras-chave: Agriculture; Biotechnology; Intellectual Property; Market structure; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/25023

Remittances, Income Distribution, and Rural Asset Accumulation
Provedor de dados: 31
Autores: Adams,   Richard H., Jr.
This paper examines the direct, first-rounds impact of two types of remittances—internal and external remittances—on income distribution and asset accumulation in rural Pakistan. Using income decomposition techniques on a three-year panel household data set, the paper finds that internal remittances have a positive effect on equity and that external remittances have a negative effect. The study also uses an asset-accumulation model to pinpoint the effect of remittances on five types of rural assets: irrigated land owned, rainfed land owned, livestock assets, agricultural capital, and nonfarm assets. The results show that remittances do have an effect on rural asset accumulation. While external remittances have a positive and significant effect on the...
Tipo: Working or Discussion Paper
Palavras-chave: Income Distribution; Land Use; Agricultural Economics; Livestock; Pakistan; Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/97305

Gender and the Value of Trees in Mutoko Communal Area, Zimbabwe
Provedor de dados: 31
Autores: Watson,   Leslie C.; Murray,   Eloise C.; Just,   Lesley.
This study examined the gender based differences in valuation of trees, as indicated by differences between men and women in the planting, care and use of tree resources. An analysis of differences in tree related behaviours between male headed households and female headed households was also undertaken. The study used a combination of quantitative and qualitative methodologies, including an interview schedule and card sort, supplemented by open-ended interviews and observations. The survey data were analysed using SPSS Windows. The study results indicate that trees were being planted and cared for in both male and female headed households and the majority of heads of households preferred multipurpose, fruit bearing tree species. There were differences in...
Tipo: Working or Discussion Paper
Palavras-chave: Labor and Human Capital.
Ano: 1996
URL: http://purl.umn.edu/24072

ASSISTING THE FORMER SOVIET EMPIRE: AN EXAMPLE OF THE FOREIGN AID CRISIS
Provedor de dados: 31
Autores: Zeuli,   Kimberly A.; Ruttan,   Vernon W.
In 1989 the revolutions in several Eastern European countries brought an end to The Soviet European empire and ultimately the Cold War.  This paper examines the effect the end of the Soviet threat had on America's foreign assistance programs in general, and specifically on US attempts to aid the New Independent States (NIS) and the Central and Eastern European Countries (CEECs).  Over the course of the years, America's foreign assistance programs have been motivated by a combination of national security considerations, economic self- interest, and humanitarian concerns.  However, the US desire to stem Soviet expansion, first in Europe, then in South East Asia, and then in other Third World countries, came to dominate assistance policy. When the Soviet...
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/13716

Evaluating Quality Improvement in Nonhomogeneous Agricultural Commodities: The Case of Australian Beef
Provedor de dados: 31
Autores: Voon,   Thomas Jan P.
This paper develops conceptual and empirical frameworks for assessing the economic benefits from agricultural research which enhances the amount of a desirable characteristic in each unit of a heterogeneous commodity. The commodity is assumed to comprise two or more joint products accruable in fixed proportion. Quality improvement is perceived as an increase in the proportion of a joint product with more of a more-valued characteristic and, as such, is modelled as a shift in the supply curve of a joint product rather than via a shift in commodity demand. A proxy variable is constructed to measure an intertemporal quality change and to estimate the associated size of the supply shift. An application of the framework to the Australian beef industry indicates...
Tipo: Journal Article
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/12411

EDITORS' REPORT (JOURNAL OF AGRICULTURAL AND APPLIED ECONOMICS)
Provedor de dados: 31
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/15254

Smallholder Cash Cropping, Food Cropping, and Food Security in Northern Mozambique: Research Methods
Provedor de dados: 31
Ministry of Agriculture and Rural Development, Directorate of Economics, Republic of Mozambique
Tipo: Working or Discussion Paper
Palavras-chave: Food security; Food policy; Mozambique; Cash cropping; Food cropping; Crop Production/Industries; Food Security and Poverty; Q18.
Ano: 1996
URL: http://purl.umn.edu/56021

Sustainable Development and Environmental Conservation: Major Regional Issues with Asian Illustrations
Provedor de dados: 31
Autores: Tisdell,   Clement A.
Tipo: Working or Discussion Paper
Palavras-chave: Environmental Conservation; Sustainable Development; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/53597

RISK ATTITUDE, PLANTING CONDITIONS AND THE VALUE OF SEASONAL FORECASTS TO A DRYLAND WHEAT GROWER
Provedor de dados: 31
Autores: Marshall,   Graham R.; Parton,   Kevin A.; Hammer,   G.L.
The value of a seasonal forecasting system based on phases of the Southern Oscillation was estimated for a representative dryland wheat grower in the vicinity of Goondiwindi. In particular the effects on this estimate of risk attitude and planting conditions were examined. A recursive stochastic programming approach was used to identify the grower's utility-maximising action set in the event of each of the climate patterns over the period 1894-1991 recurring in the imminent season. The approach was repeated with and without use of the forecasts. The choices examined were, at planting, nitrogen application rate and cultivar and, later in the season, choices of proceeding with or abandoning each wheat activity. The value of the forecasting system was...
Tipo: Journal Article
Palavras-chave: Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/22368

CONGESTION MODELS WITH CONSISTENT CONJECTURES
Provedor de dados: 31
Autores: Holloway,   Garth J.
This paper demonstrates that, in situations in which a cumulative externality exists, the basic nature and extent of resource misallocation may be substantially less than we imagine. This conclusion stems from deriving consistent conjectures in a unified framework in which congestion is present. Experiments support the conclusion that, when numbers of agents are small, when there is little heterogeneity among them, and when they have the opportunity to observe each other during repeated experiment, the market allocation may be efficient.
Tipo: Journal Article
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/22372

Understanding Global Trends in the Use of Wheat Diversity and International Flows of Wheat Genetic Resources
Provedor de dados: 31
Autores: Smale,   Melinda.
This paper discusses the centers of origin and diversity for bread wheat; sketches historical patterns in the sources and use of wheat genetic resources in modern plant breeding; identifies and compares indicators of genetic diversity used by social and biological scientists; reviews the relationship of wheat genetic diversity to yield stability and vulnerability to disease; develops a profile of the structure of genetic variation in wheat in the developing world today; and investigates how scientific plant breeding has influenced the structure of genetic variation among the major bread wheats grown in developing countries. Modern plant breeding appears to have contributed to genetic variation in several ways. The number of different landraces in pedigrees...
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/7670

SUMMARY OF RESEARCH NEEDS
Provedor de dados: 31
Autores: Weersink,   Alfons.
Tipo: Conference Paper or Presentation
Palavras-chave: International Relations/Trade; Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/16964

ECONOMIC IMPACT OF RAILROAD ABANDONMENT: CARRINGTON-TO-TURTLE LAKE RAIL LINE
Provedor de dados: 31
Autores: Bangsund,   Dean A.; Honeyman,   Joel S.; Leistritz,   F. Larry.
The Carrington-to-Turtle Lake rail line serves five agricultural shippers in a four county area in central North Dakota. Service on the line has been affected by recent embargoes, floods, and poor, deteriorating track conditions.  The line is a strong candidate for abandonment as efforts to rehabilitate the line have lacked financial support.  Prior to this study, a benefit/cost study, which compares benefits and costs of a rail line reconstruction, was performed for the rail line in an attempt to secure financial assistance for rehabilitation. Railroad abandonment impacts rural communities and local economies in a variety of ways.  Businesses that use rail for transportation usually experience a change in their shipping options.  Instead of sending and/or...
Tipo: Working or Discussion Paper
Palavras-chave: Rail abandonment; Economic impact; Rural communities; Community/Rural/Urban Development; Public Economics.
Ano: 1996
URL: http://purl.umn.edu/23100

The Effects of Soybean Protein Changes on Major Agricultural Markets
Provedor de dados: 31
Autores: Premakumar,   V.
Tipo: Working or Discussion Paper
Palavras-chave: Crop Production/Industries; Marketing.
Ano: 1996
URL: http://purl.umn.edu/18387

Minnesota Agricultural Economist 685
Provedor de dados: 31
Autores: Cho,   Yongsung; Easter,   K. William.
How Much Would Minnesotans Pay to Improve Their Drinking Water?
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/13199

CHANGING EMPHASIS IN AGRIBUSINESS CURRICULA
Provedor de dados: 31
Autores: Larson,   Ronald B.
Required courses for agribusiness degrees at forty-three schools were divided into six categories. The ranges in the percentage of required credits by category were quite large. Industry leaders, alumni, and employers have suggested increasing the course work on communications and business skills to improve the curricula. However, a comparison of degree requirements over time for a sample of twelve programs did not reveal major increases in emphasis for these areas. Departments should consider customer needs and competing programs as they review their curricula and attempt to add more value to their educational products.
Tipo: Journal Article
Palavras-chave: Teaching/Communication/Extension/Profession.
Ano: 1996
URL: http://purl.umn.edu/27787

COMPARISON OF MICHIGAN FARMLAND RETURNS TO NONFARM  INVESTMENTS
Provedor de dados: 31
Autores: Hepp,   Ralph E.
Farmland is both a financial investment and a production resource when it is used by the farm family in generating income for the business.  The resource is used in producing crops for sale or feed for animals.  The basic choices for controlling land are ownership and lease.  Land leases allows the control of land for income generation, but it does not allow the lessor to participation in the investment characteristics of the property.  Land ownership provides a means for gaining income for the business as well as capital gains for the owner's wealth accumulation. Agricultural land prices increased for almost 50 years until the agricultural financial crisis in the 1980's halted the upward movement in values.  From 1981 to 1987, Michigan farmland prices...
Tipo: Working or Discussion Paper
Palavras-chave: Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/11825

A Review of Integrated Pollution Control Efforts in Selected Countries
Provedor de dados: 31
Autores: Hersh,   Robert.
This report describes the reasons why integrated pollution control (IPC) became accepted as a necessary part of the environmental regulatory systems of the Netherlands, the United Kingdom, and Sweden and examines the experience these countries have had with unified environmental statutes, alternative compliance approaches, cross-media permitting, and other aspects of IPC that are under consideration in this country. The report is organized into five sections. In the first section we provide a brief overview of the intellectual pedigree of integrated pollution control, and discuss arguments that have been put forward by advocates of IPC as well as the counter-arguments of those who have taken a more skeptical view of the technical and political feasibility...
Tipo: Working or Discussion Paper
Palavras-chave: Integrated pollution control; European environmental policy; Environmental compliance and enforcement; Environmental Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/10792

POSTERS: ANNUAL MEETINGS, SAEA, GREENSBORO, NORTH CAROLINA, FEBRUARY 1996
Provedor de dados: 31
Tipo: Journal Article
Ano: 1996
URL: http://purl.umn.edu/15241

Capital Stocks and Their User Costs for West German Agriculture: A Documentation
Provedor de dados: 31
Autores: Witzke,   Heinz Peter.
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural Finance.
Ano: 1996
URL: http://purl.umn.edu/18781

END MATERIALS
Provedor de dados: 31
Includes:  National Public Policy Education Committee, Invited Poster/Display Session Topics, 1996 NPPE Conference Participants
Tipo: Conference Paper or Presentation
Ano: 1996
URL: http://purl.umn.edu/17283

Fighting an Uphill Battle: Population Pressure and Declining Land Productivity in Rwanda
Provedor de dados: 31
Autores: Clay,   Daniel C.
The research reported here draws attention to the structure of landholding as a set of mechanisms through which demographic changes in agrarian societies can alter the natural environment.
Tipo: Report
Palavras-chave: Food security; Food policy; Demographic change; Land Economics/Use; Productivity Analysis; Downloads July 2008 - June 2009: 18; R52.
Ano: 1996
URL: http://purl.umn.edu/54692

WHAT IMPACTS HAVE PAST U.S./CANADIAN DAIRY PROGRAMS HAD ON STRUCTURE, EFFICIENCY, AND TRADING RELATIONSHIPS? U.S. ANALYSIS
Provedor de dados: 31
Autores: Cropp,   Robert A.; Harris,   Harold M., Jr.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/16969

MARKET APPROACHES TO WATER ALLOCATION: WHAT HAVE WE LEARNED?; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Easter,   K. William.
Tipo: Working or Discussion Paper
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/14428

Food Security II Cooperative Agreement: Project Fact Sheets (1996 version)
Provedor de dados: 31
Autores: Weber,   Michael T.
Individual project fact sheets.
Tipo: Report
Palavras-chave: Food security; Food policy; Food Security and Poverty; Q18.
Ano: 1996
URL: http://purl.umn.edu/54685

A Theoretical Market Model for National Parks of Different Ecological Character Managed by One Agency
Provedor de dados: 31
Autores: Beal,   Diana J.
Tipo: Journal Article
Palavras-chave: Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/12409

THE FAIR ACT: WHAT DOES IT ALL MEAN?
Provedor de dados: 31
Autores: Ray,   Daryll E.
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural and Food Policy.
Ano: 1996
URL: http://purl.umn.edu/17273

Changes in New Mexico Agriculture 1996
Provedor de dados: 31
Autores: Harper,   Wilmer M.; Way,   Jacob.
Tipo: Working or Discussion Paper
Palavras-chave: Industrial Organization.
Ano: 1996
URL: http://purl.umn.edu/23959

Participatory action research: strengthening farmer organizations and agency-farmer relations
Provedor de dados: 31
Autores: Wijayaratna,   C.M.; Valdez,   Delia M.
Tipo: Book
Palavras-chave: Irrigation management; Irrigation systems; Agricultural development; Farmer-agency interactions; Operations; Maintenance; Performance evaluation; Institution building; Farmers associations; Training; Research methods; Privatization; Farm Management; Institutional and Behavioral Economics; Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/113711

A C++ PLATFORM FOR THE EVOLUTION OF TRADE NETWORKS
Provedor de dados: 31
Autores: McFadzean,   David; Tesfatsion,   Leigh.
This paper presents a general C++ platform for the implementation of a trade network game (TNG) that combines evolutionary game play with preferential partner selection.  In the TNG, successive generations of resource constrained traders choose and refuse trade partners on the basis of continually updated expected payoffs, engage in risky trades modelled as two-person games, and evolve their trade strategies over time.  The modular design of the TNG platform facilitates experimentation with alternative specifications for market structure, trade partner matching, trading, expectation formation, and trade strategy evolution.  The TNG platform can be used to study the evolutionary implications of these specifications at three different levels: individual...
Tipo: Working or Discussion Paper
Palavras-chave: C++ platform; Trade networks; Evolutionary game; Partner matching; Endogenous interactions; Agent-based computational economics; Artificial life; International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/18192

LAND MARKETS AND LEGAL CONTRADICTIONS IN THE PERI-URBAN AREA OF ACCRA GHANA: INFORMANT INTERVIEWS AND SECONDARY DATA INVESTIGATIONS
Provedor de dados: 31
Autores: Kasanga,   R. Kasim; Cochrane,   Jeffrey A.; King,   Rudith; Roth,   Michael J.
The peri-urban area of Accra is experiencing a rapid transformation. A robust urban and agricultural land market has emerged, characterized by purchases, rapidly rising real land prices, and outsiders from Accra acquiring agricultural holdings for residential and commercial use. The fact that residences are being built, commercial firms are being established, and large firms are acquiring land for commercial interests attests to the ability of the customary system to enable transfers for productive activity. Nevertheless, limited or uncertain property rights increase investment costs and differential access to information in the land market affects equity. This paper seeks to better understand: (a) the land market in peri-urban Accra, (b) the process by...
Tipo: Working or Discussion Paper
Palavras-chave: Land tenure -- Ghana -- Accra Region Land tenure -- Law and legislation - -Ghana Land use; Urban -- Ghana -- Accra Region Real property -- Ghana -- Accra Region Land reform -- Law and legislation -- Ghana Land markets -- Ghana Land tenure; Urban -- Ghana Land administration -- Law and legislation -- Ghana Tenure types; Traditional -- Ghana Research methods Land Economics/Use.
Ano: 1996
URL: http://purl.umn.edu/12747

ALLOCATABLE FIXED INPUTS AND JOINTNESS IN AGRICULTURAL PRODUCTION: MORE IMPLICATIONS
Provedor de dados: 31
Autores: Asunka,   Samuel; Shumway,   C. Richard.
The presence of allocatable fixed inputs may cause truly joint technologies to appear nonjoint in the short run as well as truly nonjoint technologies to appear joint.  This paper demonstrates theoretically why this can happen and then documents that it actually occurs in a significant way in aggregate U.S. agricultural production.  A simple testing procedure is used that requires no data on inputs allocations.  The important finding is that failure to reject true (apparent) nonjointness does not justify modeling short-run (long-run) supply independent of alternative output prices.
Tipo: Journal Article
Palavras-chave: Agribusiness.
Ano: 1996
URL: http://purl.umn.edu/31397

THE USE OF BULLETIN BOARD SYSTEMS (B.B.S.) IN TECHNOLOGY TRANSFER PROCESSES; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy.
Provedor de dados: 31
Autores: de Marco,   Tommaso; Bustaffa,   Roberto.
Tipo: Working or Discussion Paper
Palavras-chave: Research and Development/Tech Change/Emerging Technologies.
Ano: 1996
URL: http://purl.umn.edu/14466

THE PROPENSITY TO ENTER AND EXIT EXPORT MARKETS: A MAIL SURVEY OF SMALLER AGRI-FOOD FIRMS IN MICHIGAN
Provedor de dados: 31
Autores: Sterns,   James A.; Peterson,   H. Christopher.
EXECUTIVE SUMMARY: In the Fall of 1994, researchers in the Department of Agricultural Economics at Michigan State University identified the following two questions:     1.To what degree (if any) are smaller agribusiness and food industry firms involved in international markets? 2.To what degree (if any) are international markets a potential opportunity for smaller agribusiness and food industry firms? In an effort to address these two questions, researchers contacted 543 Michigan-based, small- to medium-sized agri-food firms to solicit their participation in a mail survey.  Firms willing to participate in the study returned a postcard with a limited amount of information on it about the company's current marketing and sales activities.  An additional 88...
Tipo: Working or Discussion Paper
Palavras-chave: International Relations/Trade.
Ano: 1996
URL: http://purl.umn.edu/11755

Personal computer brand loyalty
Provedor de dados: 31
Autores: Jackson,   Tyrone W.; Perloff,   Jeffrey M.
A Markov model shows the degree of brand loyalty to Apple, Compaq, IBM, and Wyse personal computers by large corporate customers of Businessland, a large reseller of personal computers in the late 1980s and early 1990s. Because Businessland temporarily lost its franchise to carry Compaq for half a year in the middle of our sample, the model captures the effect on Businessland's sales of rival brands when a name brand is eliminated and then reintroduced. Large corporate customers were brand-loyal and relatively price insensitive. Their loyalty did not diminish over time. They did not view IBM-compatible computers as perfect substitutes. Eliminating and then reintroducing a brand has different short- and long-run effects. It is difficult to explain which...
Tipo: Working or Discussion Paper
Palavras-chave: Brands; Computers; Consumers; Markov model; Multinominal logit; Consumer/Household Economics.
Ano: 1996
URL: http://purl.umn.edu/47283

POTENTIAL OF CANOLA IN MICHIGAN
Provedor de dados: 31
Autores: Adhikari,   Bishwa B.
This study consists of four different aspects of canola in Michigan with special emphasis on northern Michigan. The economic feasibility of canola as an alternative cash crop, potential canola growing area, feasibility of establishing canola processing plant(s) in northern Michigan and the canola marketing situation in Michigan were appraised. Secondary data, previous research results, key informant interviews, informal visits, expert opinions and survey data were used to study these aspects of canola.  Review of past agronomic research results showed that canola can successfully be grown in various part of Michigan, including northern Michigan. Break-even analysis of canola with other alternative crops like wheat, corn, oats and soybeans suggested that...
Tipo: Thesis or Dissertation
Palavras-chave: Crop Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/11051

Bayesian Bootstrap Analysis of Systems of Equations
Provedor de dados: 31
Autores: Heckelei,   Thomas; Mittelhammer,   Ronald C.
Tipo: Working or Discussion Paper
Palavras-chave: Research Methods/ Statistical Methods.
Ano: 1996
URL: http://purl.umn.edu/18786

KNOWLEDGE, TOXICITY, AND EXTERNAL SHOCKS: THE DETERMINANTS OF ADOPTION AND ABANDONMENT OF NON-TRADITIONAL EXPORT CROPS BY SMALLHOLDERS IN GUATEMALA
Provedor de dados: 31
Autores: Carletto,   Calogero; de Janvry,   Alain; Sadoulet,   Elisabeth.
Tipo: Working or Discussion Paper
Palavras-chave: Farm Management; International Development.
Ano: 1996
URL: http://purl.umn.edu/25088

MANURE APPLICATION PLANNER (MAP): CONVERSION AND USE IN ITALY; Proceedings of the Fifth Joint Conference on Agriculture, Food, and the Environment, June 17-18, 1996, Padova, Italy
Provedor de dados: 31
Autores: Boggia,   Antonio; Richardson,   D. Wynn.
Tipo: Working or Discussion Paper
Palavras-chave: Livestock Production/Industries.
Ano: 1996
URL: http://purl.umn.edu/14376

Ausencia de actividad antiinflamatoria del extracto acuoso liofilizado de Petiveria alliacea (anamu) en ratas
Provedor de dados: 98
Autores: Furones Mourelle,Juan Antonio; Morón Rodríguez,Francisco; Pinedo Gutiérrez,Zulima.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000200009

Ausencia de efectos antiinflamatorio y analgésico del extracto fluido de Cymbopogon citratus al 30 % por vía oral
Provedor de dados: 98
Autores: Morón Rodríguez,Francisco; Furones Mourelle,Juan Antonio; Pinedo Gutiérrez,Zulima.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000200001

Efecto diurético y toxicidad aguda del Orthosiphon aristatus Blume (te de riñón)
Provedor de dados: 98
Autores: León Padilla,María del Carmen; Tillán Capó,Juana; Hernández Rodríguez,Alberto; Cadenas Freixas,José Luis; Calzada Alvarez,Sonia.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000300006

Irritabilidad oftálmica de una solución compuesta por aceites esenciales de caña santa y orégano
Provedor de dados: 98
Autores: Romay,Talía; Beníte,Marina; Sebazco,Caridad; Marrero,Orlando.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000100007

Toxicología subcrónica bucal del extracto fluido de Plantago lanceolata L
Provedor de dados: 98
Autores: Romay Penabad,Talía; Sotolongo Baró,María del Carmen; Sebazco Pernas,Caridad; Perdomo Paiba,María E.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000200006

Actividad anticonvulsivante (antiepileptica) del extracto fluido de Indigofera suffruticosa (añil cimarrón) (añil cimarrón)
Provedor de dados: 98
Autores: Pérez de Alejo,José L; Miranda,Roberto; Rodríguez,Gilda.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000200002

Prueba de irritabilidad dérmica primaria del Plantago major L
Provedor de dados: 98
Autores: Rodríguez Pargas,Ayní; León Padilla,María del Carmen; Hernández Rodríguez,Alberto; Junco Barranco,Jesús.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000300010

Actividad antimicrobiana del Schinus terebenthifolius Raddi (copal)
Provedor de dados: 98
Autores: Martínez,María Julia; Alonso González,Nancy; Betancourt Badell,José.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000300008

Estudio de la irritabilidad oftálmica del extracto fluido de Indigofera suffruticosa
Provedor de dados: 98
Autores: Romay,Talía; Benítez,Marina; Sebazco,Caridad; Marrero,Orlando; Acevedo,Martha.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000100003

Plantago major L. (llanten) y epilepsia I. efecto de las decocciones de hojas y raíces sobre el foco penicilinico en ratas curarizadas
Provedor de dados: 98
Autores: Buznego Rodríguez,María Teresa; Pérez-Saad,Héctor.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000100008

Actividad antidepresiva y anticonvulsivante del extracto fluido del Ocimun tenuiflorum L. (albahaca morada)
Provedor de dados: 98
Autores: Pérez de Alejo,José L; Miranda,Roberto; Rodríguez,Gilda.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000100002

Ausencia de la acción analgésica de la Petiveria alliacea (anamu) en ratones
Provedor de dados: 98
Autores: Furones Mourelle,Juan Antonio; Morón Rodríguez,Francisco; Pinedo Gutiérrez,Zulima.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000100004

La germinación del culantro (Eryngium foetidum L.)
Provedor de dados: 98
Autores: Fuentes Fiallo,Víctor R; Rodríguez Medina,Narciso N; Rodríguez Ferradá,Carlos A.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000200008

Acción estimulante del extracto fluido del Zingiber officinale Rosc. (jengibre)
Provedor de dados: 98
Autores: Pérez de Alejo,José L; Miranda,Roberto; Rodríguez,Gilda.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000100010

Efecto antioxidante de los extractos fluido y de flavonoides del Plectranthus amboinicus (Lour.) Spreng. (orégano francés)
Provedor de dados: 98
Autores: García Salmán,Jorge Daniel; García Jiménez,Teidy Eloísa; Menéndez Castillo,Rosa; Buznego Rodríguez,María Teresa.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000200007

Efecto antiulceroso de fórmulas que contienen un extracto de Aloe vera L. (sábila)
Provedor de dados: 98
Autores: Alvarez,Alicia; Ramos,Irina; Robaina,Yamilet; Pérez,Graciela; Cuevas,Marina; Carrillo,Carmen.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000300007

Sobre la germinación de Stephania rotunda Lour
Provedor de dados: 98
Autores: Fuentes Fiallo,Víctor R; Rodríguez Medina,Narciso N; Rodríguez Ferradá,Carlos A.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000200003

Efecto antiulceroso de una solución viscosa oral a partir de un extracto de Bidens pilosa L. (romerillo) en ratas
Provedor de dados: 98
Autores: Alvarez Avalos,Alicia; Robaina,Yamilet; Sánchez,Ester; Cuevas Guerrero,Marina.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000100006

Evaluación genotóxica de un extracto acuoso de Aloe vera L
Provedor de dados: 98
Autores: Ramos Ruiz,Alberto; Edreira Armenteros,Aymee; Villaescusa González,Aida; Vizoso Parra,Angel; Martínez,María Julia.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000200005

Determinación del efecto diurético de Cymbopogon citratus (DC) Stapf (caña santa)
Provedor de dados: 98
Autores: Cairo Martínez,Mercedes; Victorio Fresneda,Maritza; Campos Martínez,Daisy.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000300003

Estudio farmacognóstico de caléndula (Calendula officinalis L.)
Provedor de dados: 98
Autores: García,Dinah; Sánchez,Ester; Crespo,Maritza; Carballo,Caridad.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000300005

Ausencia de genotoxicidad en extractos fluidos de Ortosiphon aristatus Blume (te de riñón) y Lepidium virginicum L. (mastuerzo)
Provedor de dados: 98
Autores: Ramos Ruiz,Alberto; Villaescusa González,Aida; Vizoso Parra,Angel.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000200010

Cultivo de orégano francés (Plecthranthus amboinicus [Lour.] Spreng.) para la producción de fitofármacos
Provedor de dados: 98
Autores: Acosta,Lérida; Menénde,Rosa; Fuente,Víctor; Pino,Jorge; Rodríguez,Carlos; Carballo,Caridad.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000100009

Estudio farmacognóstico de Mentha x piperita L. (toronjil de menta)
Provedor de dados: 98
Autores: Sánchez,Ester; García,Dinah; Carballo,Caridad; Crespo,Maritza.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000300009

Actividad antifúngica in vitro de una crema de Plantago major L
Provedor de dados: 98
Autores: Rodríguez Pargas,Ayní; León Padilla,María del Carmen; Hernández Rodríguez,Alberto; Junco Barranco,Jesús.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000300002

Acción analgésica de un extracto acuoso liofilizado de Aloe vera L. en ratones
Provedor de dados: 98
Autores: Furones Mourelle,Juan Antonio; Morón Rodríguez,Francisco; Pinedo Gutiérrez,Zulima.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000200004

Especies vegetales en Cuba empleadas en la preparación de medicamentos homeopáticos
Provedor de dados: 98
Autores: Fuentes Fiallo,Víctor R.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000300001

Ausencia de actividad antimicrobiana de un extracto acuoso liofilizado de Aloe vera (sábila)
Provedor de dados: 98
Autores: Martínez,María Julia; Betancourt Badell,José; Alonso González,Nancy.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000300004

Acerca de la propagación de Ocimum gratissimum L
Provedor de dados: 98
Autores: Fuentes Fiallo,Víctor R; Rodríguez Medina,Narciso N; Rodríguez Ferradá,Carlos.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000100001

Actividad espasmolítica del extracto fluido de Matricaria recutita (manzanilla) en órganos aislados
Provedor de dados: 98
Autores: Morón Rodríguez,Francisco; Furones Mourelle,Juan; Pinedo Gutiérrez,Zulima.
Tipo: Journal article
Ano: 1996
URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S1028-47961996000100005

FRACTAL SCALING OF PARTICLE AND PORE SIZE DISTRIBUTIONS AND ITS RELATION TO SOIL HYDRAULIC CONDUCTIVITY
Provedor de dados: 63
Autores: BACCHI,O.O.S.; REICHARDT,K.; VILLA NOVA,N.A.
Fractal scaling has been applied to soils, both for void and solid phases, as an approach to characterize the porous arrangement, attempting to relate particle-size distribution to soil water retention and soil water dynamic properties. One important point of such an analysis is the assumption that the void space geometry of soils reflects its solid phase geometry, taking into account that soil pores are lined by the full range of particles, and that their fractal dimension, which expresses their tortuosity, could be evaluated by the fractal scaling of particle-size distribution. Other authors already concluded that although fractal scaling plays an important role in soil water retention and porosity, particle-size distribution alone is not sufficient to...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Fractal; Particle size distribution; Pore size distribution; Soil water retention; Soil hydraulic conductivity.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200027

NÍVEIS DE MAGNÉSIO EM SOLUÇÃO NUTRITIVA E O DESENVOLVIMENTO DO FEIJOEIRO (Phaseolus vulgaris L. cv Carioca): AVALIAÇÃO DE PARÂMETROS BIOMÉTRICOS
Provedor de dados: 63
Autores: BOARO,C.S.F.; RODRIGUES,J.D.; PEDRAS,J.F.; RODRIGUES,S.D.; DELACHIAVE,M.E.; MISCHAN,M. M.
O presente estudo teve como objetivo avaliar a influência dos níveis de magnésio sobre a altura, número de folhas e frutos e área foliar do feijoeiro (Phaseolus vulgaris L. cv Carioca), que constituem seus parâmetros biométricos. Empregou-se a solução nutritiva nº 2 de Hoagland &amp;amp; Arnon, modificada pela variação da concentração desse mineral, que estabeleceu a diferença entre os tratamentos. Em cada vaso, com capacidade para 6 litros, foram cultivadas 3 plantas. O experimento foi inteiramente casualizado, com 3 repetições, em esquema fatorial, com 5 níveis de magnésio e 5 colheitas, realizadas a intervalos de 14 dias. As plantas apresentaram aumento do número de folhas e da área foliar, na 3ª e 4ª colheitas, quando nutridas com 2,4 ppm de magnésio e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris; Magnésio; Altura; Número de folhas; Número de frutos; Área foliar.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200011

ASPECTOS DO DESENVOLVIMENTO IMUNOLÓGICO DE LEITÕES RECÉM-NASCIDOS SUBMETIDOS A DIFERENTES DIETAS DE LEITE EM PÓ
Provedor de dados: 63
Autores: ESTEVES,M.C.A.; MACHADO NETO,R.; MYIADA,V.S.
Oitenta e seis leitões provenientes de fêmeas mestiças Landrace x Large White foram distribuídos em quatro tratamentos, empregando-se um delineamento em blocos casualizados (4 blocos/tratamento). Além do tratamento controle, onde se forneceu ração peletizada (T4), dois outros tratamentos (T1 e T2) utilizaram dietas com diferentes níveis de leite em pó incorporado às rações peletizadas (14% e 9,6% na fase pré-inicial e 9,6% e 4,8% na fase inicial). O quarto tratamento (T3) não teve leite em pó incorporado à ração peletizada e sim fornecido diluído a 10% em água, apenas na fase pré-inicial. A dieta pré-inicial foi oferecida no período compreendido entre 21 a 49 dias de vida e a dieta inicial, no período de 49 a 61 dias de idade. As amostragens de sangue para...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Suínos; Imunidade passiva; Leite em pó.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200008

SECAGEM INTERMITENTE E SEUS EFEITOS NA QUALIDADE FISIOLÓGICA DE SEMENTES DE TREMOÇO AZUL
Provedor de dados: 63
Autores: AHRENS,D.C.; VILLELA,F.A.
Dois modelos de secadores comerciais, um intermitente lento, com a temperatura do ar de secagem a 60oC e a 65oC e outro rápido a 50oC, foram testados para a avaliação da redução do grau de umidade de 20 para 13% e sua influência na qualidade fisiológica das sementes de tremoço azul (Lupinus angustifolius L.). Foram realizados testes de germinação, envelhecimento artificial e emergência em campo, após a secagem, aos três e seis meses de armazenamento. Os testes de germinação e envelhecimento artificial não detectaram diferenças significativas entre a qualidade das sementes secadas nos secadores e das secadas à sombra. Na semeadura aos seis meses, as emergências em campo foram 81%, 89%, 90% e 83% para os secadores intermitente lento a 60oC, a 65oC, para o...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Secagem; Qualidade; Tremoço azul; Lupinus angustifolius L.; Sementes.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200020

RESPOSTA DA APLICAÇÃO DE MICRONUTRIENTES NO CULTIVO DE FEIJÃO IRRIGADO NO INVERNO
Provedor de dados: 63
Autores: AMBROSANO,E.J.; WUTKE,E.B.; AMBROSANO,G.M.B.; BULISANI,E.A.; BORTOLETTO,N.; MARTINS,A.L.M.; PEREIRA,J.C.V.N.A.; SORDI,G. de.
Ensaios em campo, sob irrigação por aspersão, foram conduzidos nos municípios de Ribeirão Preto, Votuporanga (1990, 1991) e Pindorama (1992, 1993), em São Paulo, nos solos latossolo roxo, latossolo vermelho-escuro fase arenosa e podzolizado de Lins e Marília, var-Marília, respectivamente, no período de maio a agosto, visando estudar o efeito da aplicação de micronutrientes, via solo e foliar, no rendimento do feijoeiro cultivar IAC-Carioca. Os tratamentos foram avaliados em delineamento de blocos casualizados com cinco repetições. Os tratamentos aplicados ao solo constaram de: testemunha com adubação básica e sem adição de micronutrientes; testemunha sem adubação básica e sem adição de micronutrientes; 20 kg ha-1 de borogram (8% B); 20 kg ha-1 de zincogram...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feijão; Phaseolus vulgaris L.; Micronutrientes; Irrigação.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200014

EXPERIMENTOS EM PARCELAS SUBDIVIDIDAS COM TRATAMENTOS PRIMÁRIOS EM BLOCOS INCOMPLETOS PARCIALMENTE BALANCEADOS: II. ANÁLISE INTRABLOCOS
Provedor de dados: 63
Autores: MORAIS,A.R. de; NOGUEIRA,M.C.S.
O objetivo do presente trabalho foi desenvolver uma metodologia adequada para análise intrablocos de experimentos em parcelas subdivididas quando os tratamentos primários estão dispostos em uma estrutura de delineamento em blocos incompletos parcialmente balanceados. Usando o método dos mínimos quadrados foram determinadas as expressões para as várias somas de quadrados que compõem a análise de variância e a composição do teste F.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Delineamento; Experimental; Análise intrablocos; Blocos incompletos; Parcelas subdivididas.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100020

COMPORTAMENTO DE CLONES DE MANDIOCA EM RELAÇÃO A INFESTAÇÃO POR Neosilba perezi  (Romero &amp;amp; Ruppell) ( DIPTERA: LONCHAEIDAE)
Provedor de dados: 63
Autores: Lourenção,A.L.; Lorenzi,J.O.; Ambrosano,G.M.B.
Avaliou-se o comportamento de doze cultivares de mandioca de mesa e de dez de indústria em relação à infestação da broca-dos-brotos Neosilba perezi em dois experimentos conduzidos na Estação Experimental de Pariquera-Açu, SP, no ano agrícola 1991/92. A infestação foi avaliada aos quatro meses após a brotação das manivas. Nos dois grupos de mandioca observou-se variações entre os cultivares para resistência a N. perezi. Entre os cultivares de mesa, o mais resistente (IAC 289-70) apresentou média de 0,25 broto broqueado por planta enquanto o mais suscetível (F 4015) teve 2,40. Os cultivares SRT 1140 - Vassourinha amarela, F 5141 e IAC 576-70 tiveram médias inferiores a 1 broto broqueado por planta e não diferiram do IAC 289-70, podendo também ser...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Neosilba perezi; Resistência varietal; Mandioca; Ganaspis pelleranoi; Broca-dos-brotas.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200019

INFLUÊNCIA DO ANELAMENTO E ESTIOLAMENTO DE RAMOS NA PROPAGAÇÃO DA LARANJEIRA VALÊNCIA (Citrus sinensis Osbeck) ATRAVÉS DE ESTACAS
Provedor de dados: 63
Autores: CASTRO,A.M.; KERSTEN,E.
Objetivando estudar a influência do condicionamento de ramos, através do anelamento e estiolamento parcial, sobre o enraizamento de estacas de laranjeira cv. Valência, conduziu-se o experimento no período de fevereiro a dezembro de 1993. Para o anelamento foi utilizado arame fino de cobre com o qual provocou-se um estrangulamento na base do ramo. No estiolamento, utilizou-se fita preta de polietileno, que foi enrolada na base das brotações. De cada ramo condicionado, obteve-se apenas uma estaca com 15 cm de comprimento, diâmetro médio de 0,5 cm e um par de folhas apicais, cortadas pela metade. O plantio das estacas foi realizado em 12.04.93, em substrato de areia lavada e peneirada. Adotou-se o delineamento inteiramente casualizado, em esquema fatorial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anelamento; Estiolamento; Propagação vegetativa; Laranjeira Valência; Estacas.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200001

ANÁLISE QUANTITATIVA DE AMOSTRAS GEOLÓGICAS UTILIZANDO A TÉCNICA DE FLUORESCÊNCIA DE RAIOS X POR DISPERSÃO DE ENERGIA
Provedor de dados: 63
Autores: CARNEIRO,A. E. V; NASCIMENTO FILHO,V. F.
Este trabalho propõe uma metodologia para análise quantitativa de amostras geológicas, que apresentam uma considerável fração de elementos leves (número atômico Z &amp;lt; 13), utilizando a técnica de fluorescência de raios X por dispersão de energia, com excitação radioisotópica. O procedimento proposto baseia-se no método dos Parâmetros Fundamentais para a quantificação dos elementos analíticos (Z &lt;FONT FACE="Symbol"&gt;³&lt;/font&gt; 13) e na radiação de excitação espalhada coerente e incoerentemente para a quantificação da fração leve da matriz (Z &amp;lt; 13). Neste método, a relação entre a intensidade fluorescente e a concentração elementar foi estimada através da sensibilidade elementar e fator de geometria para a fluorescência, determinados com...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Análise quantitativa; Fluorescência de raios X; Amostras intermediárias; Energia dispersiva; Radiação espalhada.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100014

HABILIDADE DE INFECÇÃO DE ISOLADOS DE  Zoophthora radicans SOBRE Empoasca kraemeri
Provedor de dados: 63
Autores: LEITE,L.G; ALVES,S.B; WRAIGHT,S.P; GALAINI-WRAIGHT,S; ROBERTS,D.W.
Foram analisados e comparados os processos de germinação e habilidade de infecção dos isolados ARS-1590, ARS-1261 e ARS-1229 de Zoophthora radicans (Brefeld) Batko sobre ninfas do 5º ínstar de Empoasca kraemeri (Hoss &amp;amp; Moore) em ambiente de 20°C e 100% de umidade relativa. A formação de apressório e penetração dos isolados iniciaram-se dentro do período de seis horas após a inoculação. As penetrações dos isolados ocorreram em maior proporção no abdome, seguido do tórax e cabeça do inseto, tendo sido mais frequente nas membranas do corpo do que nos escleritos.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Cigarrinha verde; Entomophthorales; Controle biológico.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100022

Conservação pós-colheita de abacates Persia americana Mill., variedades Fortuna  e Quintal, pOR IRRADIAÇÃO
Provedor de dados: 63
Autores: Germano,R.M. de A.; Arthur,V.; Wiendl,F.M.
O presente trabalho teve como objetivo determinar a dose de radiações gama do Cobalto-60 capaz de prolongar a vida de prateleira de frutos de abacate de duas variedades: Fortuna e Quintal, possibilitando por conseguinte, aumentar o período de sua comercialização. Os abacates após sua colheita foram mantidos sob duas condições: em temperatura ambiente, entre 21 e 24° C e umidade relativa entre 65 e 75%, e sob refrigeração, com temperatura entre 12 e 13,5° C e umidade relativa entre 45 e 55%. Foram feitas determinações do porcentual de perda de peso diário, determinações de dias de vida pós irradiação e resistência à penetração em suas cascas. Observou-se que as radiações na variedade Fortuna induziram um prolongamento na vida de prateleira que na testemunha...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abacate; Radiações gama; Vida de prateleira; Refrigeração; Irradiação; Persia americana.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200010

ADUBAÇÃO VERDE E ORGÂNICA PARA O CULTIVO DO AMENDOIM (Arachis hypogaea L)
Provedor de dados: 63
Autores: RODRIGUES FILHO,F.S.O; GERIN,M.A.N; IGUE,T; FEITOSA,C.T; SANTOS,R.R. dos.
No período de 1986/87 a 1993/94 foram conduzidos experimentos, em solo Podzólico Vermelho-Escuro, distrófico, textura média, de baixa fertilidade, na Estação Experimental de Monte Alegre do Sul do Instituto Agronômico de Campinas, com o objetivo de verificar os efeitos da monocultura do amendoim, em cultivo contínuo e não contínuo, da incorporação de biomassa de Mucuna aterrima (Piper &amp;amp; Tracy) Holland (mucuna preta) como adubação verde e da aplicação de esterco de galinha como adubação orgânica, sobre a produção do amendoim "das águas" e na variação dos teores de nutrientes no solo. O tratamento "amendoim-contínuo" foi o que proporcionou os mais baixos índices de produção da cultura, com média de oito anos de 1525 Kg/ha. O tratamento...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amendoim; Adubação verde e orgânica; Pousio; Nutrientes no solo; Arachis hypogaea.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100013

EFEITOS DO TRATAMENTO COMBINADO DE IRRADIAÇÃO GAMA E REFRIGERAÇÃO NO CRESCIMENTO DE LEVEDURA (Saccharomyces cerevisiae Hansen) EM SUCO DE LARANJA
Provedor de dados: 63
Autores: DOMARCO,R.E; SPOTO,M.H.F; WALDER,J.M.M; BLUMER,L; MATRAIA,C.
O efeito da radiação gama e baixas temperaturas foi estudado no crescimento de Saccharomyces cerevisiae em suco de laranja. O suco concentrado de laranja (65°Brix) foi diluído a 10,5°Brix e inoculado com levedura comercial. As amostras foram irradiadas com doses de 1,0, 1,5, 2,0, 2,5, 5,0 e 7,5 kGy (Cobalto 60), a uma taxa de dose de 2,83 kGy/h. Todas as amostras foram armazenadas a 0°, 5° e 25°C, por 1, 7, 14, 21, 30, 60 e 90 dias. O tratamento combinado de 1 kGy e refrigeração a 0°C foi efetivo para a conservação do suco de laranja por 90 dias de armazenamento. A dose de 2,5 kGy foi suficiente para conservar o suco de laranja por 90 dias de armazenamento a 5°C. A 25°C, somente as doses mais altas (5 e 7,5 kGy) foram efetivas no controle do crescimento da...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irradiação; Suco de laranja; Saccharomyces cerevisiae.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100003

REAÇÃO DA PINHA (Annona squamosa L.) A TRÊS ESPÉCIES DE FITONEMATÓIDES
Provedor de dados: 63
Autores: Monteiro,A.R.; Oliveira,C.M.G. de; Kuroki,A.
Em ensaio conduzido em vasos, a céu aberto, estudou-se a reação de Annona squamosa em relação a três nematóides fitoparasitos. As plantas foram inoculadas com 10.000 exemplares de Radopholus similis, Rotylenchulus reniformis ou Meloidogyne exigua por recipiente. Avaliaram-se, após três meses da inoculação, a altura das plantas, o peso fresco do sistema radicular e o número de nematóides nas raízes e no solo. O estudo revelou que a Annona squamosa comportou-se como resistente a Rotylenchulus reniformis e a Meloidogyne exigua, e intolerante a Radopholus similis.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Annona squamosa; Meloidogyne exigua; Rotylenchulus reniformis; Radopholus similis.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200005

CONDUTIVIDADE HIDRÁULICA NO PROCESSO DE ELUIÇÃO EM UM SOLO BRUNO-NÃO-CÁLCICO
Provedor de dados: 63
Autores: ANDRADE,L.N.V. DE; CRUCIANI,D.E.
Com o objetivo de avaliar o efeito da porcentagem de sódio trocável do solo e da concentração eletrolítica da água de percolação, sobre a condutividade hidráulica em um solo Bruno-Não-Cálcico da região do Rio Salitre-BA, o presente experimento foi conduzido em condições de laboratório e consistiu da determinação da condutividade hidráulica do solo saturado utilizando-se diferentes soluções percolantes, da condutividade elétrica da solução percolada e dos teores de sódio antes e após a eluição com as soluções. Utilizando a câmara de membrana de pressão de Richards, foram determinados os teores de sódio deslocado a diferentes tensões. Uma baixa correlação entre a condutividade hidráulica e a porcentagem de sódio intercambiável foi encontrada. A aplicação da...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Condutividade hidráulica; Eluição; Sódio trocável.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100006

CARACTERIZAÇÃO E GÊNESE DE UMA TOPOSSEQUÊNCIA LATOSSOLO AMARELO-PODZOL ORIGINADO DE MATERIAL DA FORMAÇÃO  BARREIRAS - ESTADO DE ALAGOAS
Provedor de dados: 63
Autores: DEMATTÊ,J.L.I.; MAZZA,J.A; DEMATTÊ,J.A.M.
Características morfológicas, físicas, químicas e mineralógicas foram determinadas em 5 perfis ao longo de uma topossequência numa depressão fechada de Latossolo Amarelo até Podzol em tabuleiro a 60 km de Maceió, Estado de Alagoas, no sentido de elucidar os principais processos envolvidos na formação dos solos. A formação dos solos está diretamente relacionada às condições de drenagem devido as posições que eles ocupam no relevo. O Latossolo Amarelo ocupa a posição de transição tabuleiro-encosta, o que permite uma boa drenagem e intenso intemperismo, enquanto que no outro extremo menos intemperizado ocorre o Podzol, ocupando posições de depressão no relevo, de drenagem imperfeita. Os solos Podzólico Amarelo Latossólico, Podzólico Amarelo com fragipãs e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pedogênese; Topossequência; Drenagem; Tabuleiro; Duripã; Fragipã.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100004

BALANÇO HÍDRICO EM CULTURA DE AVEIA FORRAGEIRA DE INVERNO NA REGIÃO DE SÃO CARLOS-SP
Provedor de dados: 63
Autores: BACCHI,O.O.S; GODOY,R; FANTE Jr,L; REICHARDT,K.
O trabalho trata da determinação do balanço hídrico de uma cultura de aveia forrageira de inverno (variedade São Carlos), cultivada sob condições de irrigação por aspersão, com o objetivo de obter informações básicas sobre seu comportamento sob regime de irrigação e de sua demanda hídrica para a região de São Carlos, SP. Os resultados de produtividade da cultura e dos balanços hídricos sob duas condições de disponibilidade hídrica no solo dão indicações de que o menor nível de disponibilidade de água no solo, correspondente a um potencial mátrico mínimo de -20Kpa à 20cm de profundidade, já é suficientemente satisfatório para garantir as máximas produtividades da cultura nas condições locais de solo e clima.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Balanço hídrico; Evapotranspiração; Aveia forrageira; Aveia; Avena byzantina.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100025

Efeitos de filtros e alturas de enxertia no desenvolvimento e produção da mangueira, var. Tommy Atkins
Provedor de dados: 63
Autores: Sampaio,V. R; Simão,S.
Estudou-se o efeito da introdução de filtros, com duas dimensões (15 e 30cm), de três variedades de mangueiras (Coquinho, Carlota e Imperial) e duas alturas de enxertia (25 e 55cm), na var. Tommy-Atkins, enxertada na var. Espada. Os resultados mostraram que os tratamentos não afetaram o desenvolvimento vegetativo das mangueiras, avaliados após seis anos de implantação do experimento, através dos parâmetros: perímetro do porta-enxerto e filtro, altura e diâmetro da copa. As produções de frutos analisadas após quatro colheitas, embora acusassem certa variação entre os tratamentos, não foram estatisticamente significantes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mangueira; Filtro; Altura de enxertia.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100028

AVALIAÇÃO QUÍMICA DE CORRETIVOS DE ACIDEZ PARA FINS AGRÍCOLAS: UMA NOVA PROPOSIÇÃO
Provedor de dados: 63
Autores: ALCARDE,J.C.; RODELLA,A.A.
Foi estudado o efeito da granulometria nas determinações do poder de neutralização, do cálcio e do magnésio de corretivos da acidez de solos. É sugerido um procedimento alternativo simplificado para avaliação química desses corretivos, fundamentado em: (1) uso de amostras moídas e passadas em peneira nº 100-ABNT; (2) emprego de um método de determinação do poder de neutralização através da titulação com indicador, de uma alíquota de um extrato diluído, e (3) determinação do cálcio e do magnésio no mesmo extrato obtido para a determinação do poder de neutralização. Esses procedimentos, além de simplificarem a metodologia analítica, permitiriam uma interpretação agronômica mais adequada.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corretivos de acidez; Avaliação química; Procedimento simplificado; PRNT.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200003

ADUBAÇÃO DO AMENDOIM (Arachis hypogaea L.) EM ÁREA DE REFORMA DE CANAVIAL
Provedor de dados: 63
Autores: GERIN,M.A.N; FEITOSA,C.T; RODRIGUES FILHO,F.S.O; PEREIRA,J.C.V.N.A; NOGUEIRA,S.S.S; IGUE,T.
Foram conduzidos nos anos agrícolas de 1986/87 a 1989/90, um total de seis experimentos de campo visando o estudo do efeito da adubação sobre a produção do amendoim em aréa de reforma de canavial. Os tratamentos estudados foram: 0, 30, 60, e 90Kg/ha de P2O5 na forma de superfosfato triplo e 0 e 30Kg/ha de K2O na forma de cloreto de potássio. O delineamento experimental utilizado foi o de blocos ao acaso com oito tratamentos, em fatorial PK (4x2) e quatro repetições. Não foi realizada a calagem em nenhuma área. As sementes foram inoculadas com estirpes selecionadas de bactérias do gênero Bradyrhizobium (SMS-729, SMS-400 e SMS-438). Os canteiros experimentais foram constituídos de 4 linhas de 5m de comprimento cada, espaçadas de 0,60m e com a distância entre...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amendoim; Adubação PK; Reforma de canavial.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100012

PESQUISA DE Salmonella spp. EM LEITE CRU, LEITE PASTEURIZADO TIPO C E QUEIJO "MINAS FRESCAL" COMERCIALIZADOS NO MUNICÍPIO DE PIRACICABA - SP
Provedor de dados: 63
Autores: ÁVILA,C.R. de; GALLO,C.R.
Este trabalho foi conduzido para detectar a ocorrência de Salmonella spp. em leite cru, leite pasteurizado tipo C e queijo "Minas Frescal". Analisaram-se 19 amostras de cada produto de diferentes marcas comerciais, adquiridas em diversos estabelecimentos comerciais em Piracicaba, SP. Segundo o padrão de amostragem e métodos adotados, não foi detectada a presença de Salmonella spp. nas amostras analisadas. Durante este trabalho, foi possível observar que os 3 meios de isolamento utilizados: agar verde brilhante, agar bismuto sulfito e agar Salmonella-Shigella, apresentaram baixa seletividade, uma vez que permitiram o crescimento de bactérias não pertencentes ao gênero Salmonella. O mesmo ocorreu com os caldos tetrationato e selenito-cistina utilizados no...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonella; Leite cru; Leite pasteurizado; Queijo "Minas Frescal".
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100023

EFEITO DO NITROGÊNIO NO CULTIVO DE FEIJÃO IRRIGADO NO INVERNO
Provedor de dados: 63
Autores: AMBROSANO,E.J.; WUTKE,E.B.; AMBROSANO,G.M.B.; BULISANI,E.A.; BORTOLETTO,N.; MARTINS,A.L.M.; PEREIRA,J.C.V.N.A.; SORDI,G. DE.
Foram conduzidos ensaios de campo, sob irrigação por aspersão, nos municípios de Ribeirão Preto, Votuporanga (1990, 1991) e Pindorama (1992, 1993), em 3 diferentes tipos de solo, no período de maio a agosto, visando estudar o efeito do nitrogênio, aplicado sob várias formas, no cultivar de feijão IAC-Carioca. O delineamento experimental utilizado foi o de blocos ao acaso, com 5 repetições. Os resultados mostraram que o nitrogênio fornecido à cultura de feijão no inverno, aumenta a produção. No solo de baixa fertilidade, a produção foi maior quando o N foi parcelado. A combinação do parcelamento de N no solo e via foliar foi superior à aplicação parcelada exclusivamente via foliar. As doses únicas aplicadas em cobertura foram mais efetivas do que aplicadas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feijão; Phaseolus vulgaris L.; Nitrogênio; Parcelamento; Irrigação.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200024

EFEITO DE MODOS E ÉPOCAS DE APLICAÇÃO DE GESSO E CALCÁRIO SOBRE A CULTURA DO FEIJOEIRO (Phaseolus vulgaris L.) cv. CARIOCA-80
Provedor de dados: 63
Autores: GALON,J.A; BELLINGIERI,P.A; ALCARDE,J.C.
Instalou-se sobre um latossolo vermelho-escuro textura média, um experimento cujo objetivo foi avaliar a influência de modos e épocas de aplicação de gesso e de calcário sobre algumas características nutricionais e tecnológicas da cultura do feijoeiro irrigado. Utilizou-se no experimento o delineamento em blocos casualizados em esquema fatorial (4x3)+2 com quatro repetições, correspondendo a 4 modos de aplicação de gesso e/ou calcário, 3 doses de gesso e 2 tratamentos adicionais. Os resultados mostraram que: o uso do gesso proporcionou maiores teores de Ca nos grãos e consequentemente maior tempo para o seu cozimento. A associação gesso e calcário propiciou aumento no teor de S das folhas e também no peso de 100 grãos, quando comparado à utilização de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Extração; Nutrientes; Reatividade; Irrigação.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100017

POTENCIAL DA ÁGUA NO SISTEMA SOLO - PLANTA ESTIMADO ATRAVÉS DA FASE DE VAPOR
Provedor de dados: 63
Autores: Villa Nova,N.A; Bacchi,O.O.S; Reichardt,K.
O potencial da água, estimado através do equilíbrio líquido - vapor em diferentes situações de solo, de planta ou de atmosfera é tratado com embasamento termodinâmico, com o intuito de apresentar um maior rigor nas formulações e nos conceitos e de esclarecer pontos geralmente tratados de forma mais superficial. Apesar de se tratar de assunto clássico, encontrado na maioria dos textos sobre o assunto, é do entendimento dos autores de que a presente nota contribui para o esclarecimento de pontos básicos ligados ao comportamento da água no sistema-solo-planta-atmosfera, principalmente para os usuários de psicrômetros de solo e de planta.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Potencial da água; Energia livre de Gibbs; Psicrometria.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100029

SENSIBILIDADE DE OVOS DE Ceratitis capitata (WIED., 1824) IRRADIADOS EM DIETA ARTIFICIAL E EM FRUTOS DE MANGA (Mangifera indica L.)
Provedor de dados: 63
Autores: RAGA,A; YASUOKA,S.T; AMORIM,E.O; SATO,M.E; SUPLICY FILHO,N; FARIA,J.T. de.
O objetivo deste trabalho foi determinar as doses de radiação gama que impedissem a emergência de adultos de Ceratitis capitata, a partir de ovos irradiados em dieta artificial e em frutos de manga. Quinhentos ovos de 6, 12, 24 e 48 horas de idade foram irradiados em cada dose. A infestação artificial de ovos ocorreu em mangas das cultivares Haden, Tommy Atkins ou Keitt. Um aumento da radioresistência de ovos foi observado durante o desenvolvimento embrionário, e para ovos de 48 horas em dieta artificial, foi estimado um Probit 9 de 24,67Gy. Não foi observada influência significativa dos frutos de manga na eficiência da irradiação dos ovos, quando comparada com os testes em dieta artificial.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Mosca-do-mediterrâneo; Radiação gama; Tratamento quarentenário.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100016

EFEITO DE ÉPOCAS DE SEMEADURA NA FISIOLOGIA E PRODUÇÃO DE FITOMASSA DE LEGUMINOSAS NOS CERRADOS DA REGIÃO DO MATOGROSSO DE GOIÁS
Provedor de dados: 63
Autores: Amabile,R.F.; Carvalho,A.M. de; Duarte,J.B.; Fancelli,A.L.
A adubação verde é uma prática conservacionista pouco utilizada nos Cerrados do Brasil Central. Visando obter informações sobre as características fenológicas das espécies de leguminosas utilizadas como adubos verdes, em diferentes épocas de semeadura na Região dos Cerrados, instalaram-se três experimentos, durante o ano agrícola de 1991/92, na área experimental do Centro Nacional de Pesquisa de Solos/Coordenadoria Regional Centro-Oeste - EMBRAPA, localizada na Estação Experimental da Empresa Goiana de Pesquisa Agropecuária - EMGOPA, em Senador Canedo, GO. As espécies testadas foram a Crotalaria juncea L., mucuna preta (Mucuna aterrima (Piper &amp;amp; Tracy) Merr.), guandu (Cajanus cajan (L.) Millsp.) e feijão-bravo do Ceará (Canavalia brasiliensis), em...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crotalaria juncea; Mucuna aterrima; Canavalia brasiliensis; Cajanus cajan; Épocas de semeadura.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200018

COMPORTAMENTO DE HERBICIDA EM SOLO DE VÁRZEA COM DRENAGEM SUBTERRÂNEA
Provedor de dados: 63
Autores: CRUCIANI,D.E.; BAPTISTA,G.C.; CHRISTOFFOLETI,P.J.; MINAMI,K.
O conhecimento do comportamento de herbicidas é fundamental na avaliação de sua eficácia na agricultura e na compreensão do impacto ambiental causado por estes produtos químicos. A drenagem do solo pode influir no comportamento do herbicida pois pode atuar como fator modificador de sua mobilidade, transporte, arraste superficial e infiltração no solo e consequentemente, da contaminação de águas subterrâneas. A presente pesquisa teve por objetivo verificar o efeito de um sistema de drenagem subterrâneo sobre o arraste lateral, lixiviação e contaminação do lençol freático pelo herbicida trifluralina aplicado em pré-emergência na cultura do milho. Os resultados obtidos das avaliações efetuadas na superfície do solo, na profundidade de 0 - 15 cm e na água de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Drenagem; Herbicida; Trifluralina; Ambiente.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200021

ANÁLISE HIDRÁULICA DE HIDRO-EJETORES
Provedor de dados: 63
Autores: OLIVEIRA,E.F.; BOTREL,T.A.; FRIZZONE,J.A.; PAZ,V.P.S.
Os ejetores são dispositivos apropriados para aspirar e recalcar um fluído (líquido, gás ou vapor) ou uma mistura fluído-sólido, por aplicação prática do fenômeno de Venturi. Nem sempre, porém, se emprega o ejetor adequado para a realização desse trabalho, em virtude da escassez de informações e dados técnicos a respeito. A fim de contribuir para a solução desse problema, procurou-se avaliar o desempenho de aparelhos a jato acionados hidraulicamente. Para tal, conduziram-se ensaios com dois tipos de hidro-ejetores, disponíveis no mercado, com parâmetros característicos m=0,35 e m=0,52, respectivamente, alimentados por uma bomba centrífuga, buscando conhecer o volume de água arrastado, os rendimentos, a relação vazão de sucção/pressão de sucção, para as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ejetor; Pressão de sucção; Rendimento.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200009

WHEAT CULTIVARS: RESPONSE TO IRRIGATION AND SOWING DATES
Provedor de dados: 63
Autores: Klar,A.E.; Hossokawa,T.
This study was carried out in an Alfisol-Oxisol transition sandy-clay texture, using six wheat cultivars (Triticum aestivum, L.): two tall and tolerant to soil aluminium toxicity (BH-1146, and IAC-18), and four semi-dwarf cultivars - Anahuac, IAC-162, IAC-24, and IAC-60 - of which only the first two are sensitive to soil aluminium toxicity. Two minimum soil water potentials (ys) levels were used: 1. watered, when Ys reached about -0.05 MPa; 2. dry, when the water potential reached around -1.5 MPa. Two sowing dates, 05/22/92 and 06/11/92, were used. The results showed that Anahuac and IAC-60 are the most indicated cultivars for the studied region; when irrigated all cultivars presented similar yield level under no irrigation conditions; the irrigation was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Irrigation; Growing season; Semi-dwarf and dwarf wheat plants.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200004

TESTES DE CONDUTIVIDADE ELÉTRICA PARA AVALIAÇÃO DO VIGOR DE SEMENTES DE SOJA  (Glycine max (L.) Merrill)
Provedor de dados: 63
Autores: DIAS,D.C.F.S; MARCOS FILHO,J.
O presente trabalho teve como objetivo investigar a possibilidade de redução do período de condicionamento das sementes nos testes de condutividade elétrica, nos sistemas de massa e individual, e consequentemente, obter indicações mais rápidas sobre a qualidade fisiológica dos lotes. Para tanto, foram utilizados quatro lotes de sementes de soja das variedades IAC-8 e IAC-15 que foram submetidos a estudos específicos de condutividade elétrica de massa e individual (ASA-610), empregando-se períodos de condicionamento de 4, 8, 12, 16, 20 e 24 horas. No sistema de massa foram utilizadas amostras de sementes não danificadas e de sementes fisicamente puras. Nos estudos com o ASA-610 foram testadas as intensidades de corrente elétrica de 95 a 45 mA/semente, em...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Sementes; Vigor; Condutividade elétrica.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100005

ENRAIZAMENTO DE CRAVO (Dianthus caryophyllus L.) IN VITRO E EX VITRO
Provedor de dados: 63
Autores: CUZZUOL,G.R.F; GALLO,L.A; CROCOMO,O.J.
Plântulas de cravo (Dianthus caryophyllus) micropropagadas durante várias gerações pelo período de um ano, foram enraizadas in vitro com AIA, ANA e AIB nas concentrações de 0,0; 0,25; 0,5 e 1,0 mg/l, em fatorial do tipo 3 x 4, com todos os tratamentos promovendo a formação de raízes, mas não diferindo do controle. Foi confrontado em condição autotrófica, o desempenho entre plântulas enraizadas in vitro na presença e ausência do regulador AIA 0,5 mg/l e plântulas enraizadas ex vitro, sem nenhuma diferença quanto ao comprimento da parte aérea. Para a variável produção de massa de matéria seca os melhores resultados foram proporcionados pelas plantas que passaram pela fase de enraizamento in vitro, tendo o sistema radicular efeito sinergístico no crescimento...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dianthus caryophyllus; Cravo; Micropropagação; Enraizamento.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100008

O EQUIVALENTE EM CARBONATO DE CÁLCIO DOS CORRETIVOS DA ACIDEZ DOS SOLOS
Provedor de dados: 63
Autores: ALCARDE,J.C.; RODELLA,A.A.
Os corretivos da acidez dos solos podem ter dois equivalentes em carbonato de cálcio: um, calculado pelos teores de cálcio e magnésio utilizando a expressão: % CaO x 1,79 + % MgO x 2,48 = %ECaCO3; outro, determinado analiticamente pelo poder ou valor de neutralização. Para uma mesma amostra ambos os valores deveriam coincidir, o que raramente acontece. Diversas hipóteses foram levantadas para justificar essa diferença. Os resultados deste trabalho permitiram inferir que nem todo o cálcio e magnésio dos corretivos devem estar associados às bases quimicamente efetivas mas também a fosfato, sulfato ou outras bases de forças inexpressivas; também os constituintes neutralizantes podem estar aprisionados em cristais de outros componentes dos corretivos, como...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corretivos de acidez; Equivalente em carbonato; Poder de neutralização.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200002

CONTROLE DO CUPIM-DE-MONTE Cornitermes cumulans (KOLLAR, 1832) COM FORMULAÇÕES LÍQUIDAS DE CLORPIRIFÓS E ENDOSSULFAN
Provedor de dados: 63
Autores: MARICONI,F.A.M.; PACHECO,P.; CINIGLIO NETO,F.; PASSOS,H.R.; CAMPOS NETO,H.M.
Com o objetivo de controle do cupim-de-monte Cornitermes cumulans, o principal cupim invasor de pastagens naturais no Estado de São Paulo, foi instalado ensaio com 8 tratamentos e 10 repetições: A1 e A2 clorpirifós (600 ml CE 22,4%); B1 e B2 clorpirifós (1000 ml CE 22,4%); C1 e C2 endossulfan (600 ml CE 35%); D1 e D2 endossulfan (1000 ml CE 35%). Entre parêntesis estão as quantidades de produtos comerciais em 100 litros de água (um litro de calda por monte). A formulação à base de clorpirifós foi o "Dursban" e, a de endossulfan, foi o "Thiodan". Em A1, B1, C1 e D1, os montes foram destruídos 120 dias após a aplicação; em A2, B2, C2 e D2, aos 253 dias da aplicação. Não houve diferença significativa entre os tratamentos: todos foram eficientes.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cupim-de-monte; Pastagens naturais; Controle químico.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200017

UTILIZAÇÃO DA PRÓPOLIS E ÁLCOOL ETÍLICO NO CONTROLE DE Salmonella EM RAÇÕES AVÍCOLAS
Provedor de dados: 63
Autores: MAZZUCO,H.; SILVA,R. D. de M. e; BERCHIERI Jr.,A.; OLIVEIRA,E. de.
Em quatro experimentos foram avaliados como agentes antibacterianos os produtos própolis em solução alcoólica e álcool etílico, adicionados às rações artificialmente contaminadas com os respectivos sorotipos: Salmonella typhimurium Nalr - Specr, (resistentes ao ácido Nalidíxico e a Spectinomicina) nos três primeiros experimentos e Salmonella agona Nalr - Specr, Salmonella infantis Nalr - Specr e Salmonella enteritidis Nalr - Specr no quarto experimento. As rações foram fornecidas a grupos de 10-16 pintos de corte de um dia. Em todos os experimentos os produtos testados foram adicionados na base de 2% da ração. Quando se utilizou solução hidroalcóolica de própolis (exp. 1), seguidas 120 horas após o desafio, detectou-se a presença da bactéria nos cecos. No...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonella; Rações avícolas; Controle; Própolis; Álcool etílico; Frangos de corte.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100001

ESTUDO DA GERMINAÇÃO DE SEMENTES DE LAVANDA (Lavandula angustifolia Miller)
Provedor de dados: 63
Autores: AOYAMA,E.M.; ONO,E.O.; FURLAN,M.R.
Com o objetivo de estudar os efeitos do ácido giberélico, do efeito luz/escuro e do pré-resfriamento sobre a germinação de sementes de lavanda (Lavandula angustifolia Miller), empregou-se o delineamento experimental inteiramente casualizado, com cinco repetições de 30 sementes cada, e os seguintes tratamentos: testemunha; GA3 100 ppm; GA3 200 ppm; escuro; GA3 100 e 200 ppm + 48 h de pré-resfriamento e GA3 100 e 200 ppm + 7 dias de pré-resfriamento. As sementes de lavanda foram pré-embebidas por 18 horas nas soluções de GA3 e em água destilada e depois colocadas em gerbox, com papel de filtro umedecido com água destilada. Nos tratamentos com pré-resfriamento as sementes foram mantidas em câmara fria por 48 horas e 7 dias à temperatura de 5° C;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Germinação; Ácido giberélico; Sementes; Lavandula angustifolia.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200013

ARMAZENAMENTO REFRIGERADO DE AMEIXAS `REUBENNEL' (Prunus salicina Lindl.): EFEITOS DO ESTÁDIO DE MATURAÇÃO E DO POLIETILENO
Provedor de dados: 63
Autores: Kluge,R.A.; Bilhalva,A.B.; Cantillano,R.F.F.
Para verificar os efeitos do estádio de maturação e da embalagem de polietileno, ameixas `Reubennel' foram colhidas em dois estádios de maturação: verde (25-50% de coloração vermelha) e semimaduro (50-75% de coloração vermelha) e armazenadas à 0oC e 90-95% UR por 14, 28 e 42 dias (+ 3 dias de comercialização simulada à 25-26oC). A metade das frutas foi embalada em sacos de polietileno perfurado. O polietileno reduziu as perdas de peso das frutas durante o armazenamento, sem afetar outros parâmetros de qualidade estudados (firmeza de polpa, sólidos solúveis totais, acidez total titulável e relação sólidos solúveis totais/acidez total titulável). As frutas deste cultivar conservaram-se bem até 42 dias e o melhor estádio de maturação para o armazenamento foi...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polietileno; Estádio de maturação; Frigoconservação; Ameixas.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200006

REPRODUÇÃO DE Meloidogyne incognita RAÇA 2 E DE Meloidogyne javanica EM OITO ESPÉCIES DE PLANTAS MEDICINAIS
Provedor de dados: 63
Autores: MACIEL,S.L.; FERRAZ,L.C.C.B.
Avaliaram-se as taxas reprodutivas de Meloidogyne incognita raça 2 e de Meloidogyne javanica em oito espécies de plantas consideradas medicinais, em vasos com 500 ml de solo, sob condição de casa de vegetação. Cada planta foi inoculada com 5000 ovos, em média, estabelecendo-se cinco repetições. Realizaram-se as avaliações após 45 a 55 dias das inoculações, com base nos índices de massas de ovos e nos fatores de reprodução dos nematóides. Achillea millefolium (mil-folhas), Arctium lappa (bardana), Bryophyllum calycinum (folha-da-fortuna) e Crassula portulacea (bálsamo) foram hospedeiras não eficientes ou desfavoráveis a ambas as espécies. Plectranthus barbatus (boldo) e Polygonum hidropiperoides (polígono) foram eficientes à reprodução das duas espécies....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reprodução; Nematóides das galhas; Plantas medicinais.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200007

ANÁLISE DE REGRESSÃO EM EXPERIMENTOS EM PARCELAS SUBDIVIDIDAS COM DADOS NÃO-BALANCEADOS: UMA SOLUÇÃO NA LINGUAGEM GLIM
Provedor de dados: 63
Autores: PINHO,S.Z. de; MISCHAN,M.M.
São estabelecidas as matrizes necessárias para a realização da análise de variância de experimentos em parcelas subdivididas, com dados não-balanceados e balanceados, quando os tratamentos aplicados às parcelas e os tratamentos aplicados às subparcelas são ambos fatores quantitativos, usando a teoria de modelos lineares e de modelos lineares generalizados. Foi desenvolvido um programa computacional, na linguagem GLIM, para a realização da análise.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Experimentos não-balanceados; Parcelas subdivididas; Regressão; Glim.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100019

EFEITOS DE GIBERELINAS, CITOCININAS E DO NITRATO DE POTÁSSIO NO CRESCIMENTO E DESENVOLVIMENTO DO PORTA-ENXERTO DE LIMOEIRO `CRAVO'
Provedor de dados: 63
Autores: LEONEL,S.; RODRIGUES,J.D.
Os efeitos de reguladores vegetais do grupo das giberelinas e citocininas, bem como do nitrato de potássio, foram estudados no crescimento e desenvolvimento do porta-enxerto de limoeiro `Cravo' (Citrus limonia Osbeck). As sementes foram extraídas de frutos maduros, lavadas, secas à sombra e armazenadas em câmara fria (4 - 5oC) durante sessenta dias, até o mês de maio/1993, quando foram semeadas nos canteiros de semeadura. As pulverizações com os fitorreguladores foram realizadas no viveiro e tiveram início com as plantas aos 8 meses de idade, contados a partir da semeadura, sendo efetuadas um total de 4 pulverizações, realizadas a intervalos quinzenais. Os tratamentos corresponderam a: 25, 50 e 75 ppm de GA3; 25, 50 e 75 ppm de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reguladores vegetais; Plantas jovens; Citrus limonia.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200012

EFEITOS DO ÁCIDO GIBERÉLICO E DA BAIXA TEMPERATURA NA GERMINAÇÃO DE SEMENTES DE KIWI (Actinidia deliciosa, A. Chev.) CULTIVAR BRUNO
Provedor de dados: 63
Autores: MATTIUZ,B; FERRI,V.C; FACHINELLO,J.C; NEDEL,J.L.
O kiwi é uma frutífera exótica de clima temperado cuja principal característica de seus frutos é o alto teor de vitamina C. A propagação por semente é de importância, pois além de produzir plantas que se destinem à porta-enxertos, contribui para a obtenção de novas cultivares. Pesquisas tem demonstrado um baixo índice de germinação das sementes de kiwi. O objetivo deste trabalho foi o de avaliar dois diferentes métodos de elevação do índice de germinação de sementes de kiwi, da cultivar Bruno: estratificação à baixa temperatura (4 0C), através dos tratamentos de zero, duas e quatro semanas; ácido giberélico (AG3) testado em cinco diferentes concentrações (0, 100, 500, 1.000 e 2.500 ppm). A testemunha, para ambos os métodos, apresentou um baixo percentual...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Actinidia deliciosa; Kiwi; Germinação; Estratificação; Ácido giberelico.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100011

AUMENTO NA PRODUÇÃO DE SEMENTES DE GIRASSOL (Helianthus annuus) PELA AÇÃO DE INSETOS POLINIZADORES
Provedor de dados: 63
Autores: MORETI,A.C. de C.C.; SILVA,R.M.B. da; SILVA,E.C.A. da; ALVES,M.L.T.M.F.; OTSUK,I.P.
Foram realizados dois ensaios nos quais compararam-se plantas de girassol, do cultivar Anhandy, livremente visitadas por insetos(testemunhas) e outras impedidas de visitação por dois métodos (cobertura de plantas com gaiolas teladas, de 3m de largura, 4m de comprimento e 2m de altura, e ensacamento de capítulos com filó). O número, o peso e a porcentagem de sementes granadas foram significativamente maiores (P&amp;lt;0,05) nas plantas visitadas (579,28; 41,17g e 82,37%; 456,97; 23,44g 79,70%, nos dois ensaios), em relação às plantas cobertas com gaiolas teladas (81,53; 2,23g e 1,16% no primeiro ensaio e 111,92; 3,16g e 28,49%, no segundo). O número e o peso de sementes não granadas foram significativamente maiores (P&amp;lt;0,05) nas plantas cobertas com...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aumento de produção; Girassol; Polinização; Abelhas africanizadas; Apis mellifera.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200015

CONTRIBUIÇÃO AO ESTUDO ANATÔMICO DA FOLHA E  DO CAULE DO CACAUEIRO (Theobroma cacao L.)
Provedor de dados: 63
Autores: NAKAYAMA,L.H.I; SOARES,M.K.M; APPEZZATO-DA-GLÓRIA,B.
O presente estudo teve como objetivo descrever a anatomia da folha e do caule adulto enfatizando a caracterização dos tricomas e das estruturas secretoras do cacaueiro. Foram analisadas amostras de caule e folhas (limbo e pecíolo), correspondente ao 3º nó, além de folhas novas de 5cm de comprimento. A lâmina foliar é hipoestomática, com estômatos do tipo anomocítico. Em ambas as faces do limbo ocorrem quatro tipos de tricomas: sendo dois tectores e dois glandulares. Na epiderme adaxial estão presentes as glândulas secretoras de mucilagem. O mesofilo é dorsiventral; o parênquima paliçádico é formado por duas ou três camadas. O parênquima lacunoso apresenta células coletoras. Ao longo do mesofilo predomina feixes colaterais envolvidos por bainha...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cacaueiro; Anatomia; Folha; Caule; Estruturas secretoras.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100010

avaliação da capacidade de enraizamento e desenvolvimento vegetativo de GENÓTIPOS de videira para porta-enxerto
Provedor de dados: 63
Autores: BARROS,J.C. da S.M. de; POMMER,C.V.; PASSOS,I.R. da S.; TERRA,M.M.; SABINO,J.C.; Ribeiro,I.J.A.; PIRES,E.J.P.
A expansão da viticultura e sua difusão em regiões que apresentam diversidade de condições, bem como a possível utilização de cultivares que apresentem diferentes níveis de afinidade, torna indispensável a viabilização de novos porta-enxertos que possam atender a essas finalidades. O objetivo deste trabalho foi avaliar genótipos resultantes de hibridações efetuadas no Instituto Agronômico de Campinas (IAC), quanto à possibilidade de se tornarem novos porta-enxertos para videira. O trabalho foi conduzido na Seção de Viticultura do IAC, localizada no Centro Experimental de Campinas, SP. Foram utilizados 29 genótipos resultantes de cruzamentos realizados entre 1983 e 1985, escolhidos pelo seu vigor e exuberância vegetativa. Estes genótipos foram comparados...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Videira; Porta-enxerto; Seleção; Híbridos; Cultivares.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200016

PROCESSOS DE GERMINAÇÃO DE ISOLADOS DO FUNGO  Zoophthora radicans SOBRE Empoasca kraemeri
Provedor de dados: 63
Autores: LEITE,L.G; ALVES,S.B; WRAIGHT,S.P; GALAINI-WRAIGHT,S; ROBERTS,D.W.
Foram analisados e comparados os processos de germinação dos isolados ARS-1590, ARS-1261 e ARS-1229 de Zoophthora radicans (Brefeld) Batko sobre ninfas do 5º ínstar de Empoasca kraemeri (Ross &amp;amp; Moore, 1957) a 20ºC e 100% de umidade relativa (RH). A germinação dos conídios primários dos isolados sobre o inseto iniciou-se dentro do período de duas horas após a inoculação. A produção total de tubos germinativos tendeu a se igualar a de capiloconídios sobre o corpo do hospedeiro, doze horas após a inoculação. A proporção de conídios secundários, dentro das formas geradas pelos conídios primários germinados sobre o inseto, não ultrapassou 25% em qualquer das regiões do corpo.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Cigarrinha verde; Entomophthorales; Controle biológico.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100026

DESENVOLVIMENTO DA LAGARTA-DA-SOJA  (Anticarsia gemmatalis HÜBNER) EM CULTIVARES DE SOJA COM DIFERENTES DENSIDADES LARVAIS DE CRIAÇÃO
Provedor de dados: 63
Autores: CASTIGLIONI,E.A; VENDRAMIM,J.D.
O trabalho teve por objetivo estudar alguns aspectos biológicos da lagarta-da-soja, Anticarsia gemmatalis Hübner, alimentada com folhas de seis cultivares de soja (Bossier, Planalto, Prata, Santa Rosa, UFV-1 e Viçoja), em duas densidades larvais de criação (um e cinco indivíduos por recipiente), em condições de laboratório. O efeito das cultivares foi variável em função dos aspectos biológicos estudados, não permitindo destacar nenhum material como menos ou mais adequado ao desenvolvimento dessa praga. Na criação individual, verificou-se menor heterogeneidade nos estádios de desenvolvimento do inseto, podendo-se considerar este sistema como mais adequado do que a criação coletiva.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Lagarta-da-soja; Resistência de plantas; Biologia; Densidade populacional.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100021

PHOSPHORUS METABOLISM AND ESTIMATION OF PHOSPHORUS REQUIREMENTS FOR SHEEP
Provedor de dados: 63
Autores: LOUVANDINI,H; VITTI,D.M.S.S.
The main objective of the present work was to determine the effects of different dietary phosphorus (P) levels on endogenous faecal loss and to estimate the minimum daily requirement of P for sheep. The study was conducted with 24 Suffolk sheep which received a basic diet consisting of hay-concentrate mixture. The treatments consisted of different amounts of bone meal, added to the basic diet, so as to obtain supplementary P levels of 0, 1, 2 and 3g/day. Twenty-one days after the introduction of the experimental diet, 7.4 MBq radioactive P (32P) was injected into the left jugular vein of each sheep and blood, faeces and urine samples were collected daily for 8 days at 24-hour intervals. The samples were analysed for inorganic P and for radioactive specific...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phosphorus; Sheep; Nutrition.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100027

DETERMINAÇÃO DO NÚMERO DE FÊMEAS VIRGENS POR ARMADILHA E PERIODICIDADE DE CAPTURA DE MACHOS DE Helicoverpa zea (BODDIE) (LEPIDOPTERA: NOCTUIDAE)
Provedor de dados: 63
Autores: MATRANGOLO,W.J.R; DELLA LUCIA,T.M.C; CRUZ,I; VILELA,E.F.
Avaliou-se em lavouras de milho em fase de liberação de estilo-estigmas, na EMBRAPA/CNPMS, em Sete Lagoas, MG, a atratividade de diferentes números de fêmeas virgens de Helicoverpa zea (Boddie) em armadilha adesiva, além de uma formulação comercial do feromônio sintético, proveniente dos E.E.U.U. A maior atividade de procura por acasalamento teve início nas primeiras horas da noite. Não houve diferença significativa entre médias de insetos capturados com uma, três ou cinco fêmeas. Cinco fêmeas por armadilha tornam o monitoramento pouco prático; uma apenas pode comprometer a captura por disfunção fisiológica ou mesmo morte. Não houve captura nas armadilhas contendo feromônio sintético, que, ao invés, capturou machos de Mythimna, outro Noctuidae. A maior...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Feromônio sexual natural; Zea mays; Noctuidae.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100018

EFEITO DE ÉPOCAS DE DEFICIÊNCIA HÍDRICA NA EFICIÊNCIA DO USO DO NITROGÊNIO DA CULTURA DO FEIJÃO cv. IMBABELLO
Provedor de dados: 63
Autores: CALVACHE,A.M.; REICHARDT,K.
Visando identificar estádios da cultura de feijão que apresentam a menor sensibilidade ao estresse de água no solo, nos quais a irrigação pode ser omitida sem um significativo decréscimo na eficiência de uso de nitrogênio e na produtividade final, foi realizado experimento em um solo franco arenoso (Typic Haplustoll) na Estação Experimental da Universidade Central do Equador, "La Tola", em Tumbaco-Pichincha, Equador, entre julho e novembro de 1994. Os tratamentos consistiram da combinação de sete regimes de irrigação, incluindo irrigação ótima durante todo o ciclo, irrigação deficiente durante todo o ciclo, irrigação tradicional da região, deficiência hídrica no período vegetativo, na floração e formação de vagens, no enchimento de vagens e na maturidade;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eficiência de uso de água; Fixação de nitrogênio; 15N; Cultura de feijão; Phaseolus vulgaris.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200025

EFEITO DO ÁCIDO GIBERÉLICO SOBRE O COMPRIMENTO E DIÂMETRO DO CAULE DE PLÂNTULAS DE LIMÃO `CRAVO' (Citrus limonia Osbeck)
Provedor de dados: 63
Autores: MODESTO,J.C.; RODRIGUES,J.D.; PINHO,S.Z. de.
O presente trabalho foi instalado em condições de campo com plântulas de limão `Cravo'(Citrus limonia Osbeck), em delineamento inteiramente casualizado, com três repetições no esquema de parcelas sub-divididas, onde os tratamentos principais foram 5 concentrações de ácido giberélico: T1 = 0, T2 = 25, T3 = 50, T4 = 100 e T5 = 150 ppm, parceladas em quatro pulverizações. Os tratamentos secundários foram as coletas do material, realizadas dos 70 aos 210 dias, em intervalos de 14 dias. Pelos resultados obtidos, o fitorregulador promoveu efeito favorável com relação ao incremento do comprimento do caule, sendo o tratamento de 150 ppm superior aos demais. O diâmetro do caule atingiu maiores dimensões com aplicação de ácido giberélico 50 e 25 ppm.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Porta-enxerto; Limão `Cravo'; Citrus limonia Osbeck; Ácido giberélico; Crescimento.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200023

Comparison between THE oven and THE Karl Fischer methodS for THE determination of the moisture content of maize (Zea mays L.) and soya (Glycine max (L) Merrill) seeds
Provedor de dados: 63
Autores: TILLMANN,M.A.A; CICERO,S.M.
The objective of the present paper was to compare the seed water content of maize and soya, obtained by the oven method at different temperatures and the Karl Fischer method. The water contents used were 11.2 %, 12.8 % and 16.2 % for maize and 10.7 %, 12.4 % and 16.0 % for soya. Samples were dried for a sufficiently long time in order to obtain the same results in both methods. The results indicate that the official method for seed moisture determination (105oC oven method) should be revised in order to obtain more reliable results. The drying time in the oven varied according to the seed water content and the temperature used.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Seed; Moisture content; Karl Fisher.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100009

PAIRWISE ASSOCIATION AS A CRITERION FOR THE SELECTION OF COLLECTION SITES OF NATURAL ENEMIES OF THE CASSAVA GREEN MITE,  Mononychellus tanajoa (BONDAR)
Provedor de dados: 63
Autores: RODRIGUES,G.S.; PARAÍBA,L.C.; MORAES,G. J. de.
Climatic similarity has been the primary parameter considered in the selection of sites for the collection and release of natural enemies in classical biological control programs. However, acknowledging the relevance of the composition of biological communities can be essential for improving the record of successful biocontrol projects, in relation to the proper selection of collection sites. We present in this paper an analysis of the plant and mite assemblages in cassava fields of northeastern Brazil. Such analysis is suggested as an additional criterion for the selection of collection sites of mite predators of the cassava green mite, Mononychellus tanajoa (Bondar), in an international biological control program. Contingency TABLES were built using...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Biological control; Cluster analysis; Cassava green mite; Mononychellus tanajoa.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200022

EFEITO DA CALAGEM SOBRE A PRODUTIVIDADE DE GRÃOS, ÓLEO E PROTEÍNA EM CULTIVARES PRECOCES DE SOJA
Provedor de dados: 63
Autores: MASCARENHAS,H.A.A; TANAKA,R.T; GALLO,P.B; PEREIRA,J.C.V.N.A; AMBROSANO,G.M.B; CARMELLO,Q.A.C.
Foi estudado o efeito da calagem sobre a produtividade de grãos, óleo e proteína de quatro cultivares de soja. O experimento foi conduzido num solo Podzólico Vermelho Amarelo orto, durante três anos agrícolas sendo os dois últimos para efeito residual. As parcelas receberam aplicações de calcário (0, 4, 8 e 12 t/ha), enquanto nas subparcelas foram cultivadas a soja (IAC-13, IAS-5, BR-4 e BR-6), de ciclo precoce. Independentemente de cultivares, a calagem aumentou a produtividade de grãos, diminuiu a concentração de óleo e aumentou a de proteína. Nos três anos, a variedade BR-4 obteve a maior produtividade de óleo e de proteína (444 e 709 kg/ha). As relações proteína/óleo são semelhantes para os quatro cultivares estudados.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Soja; Glycine max; Calagem; Óleo; Proteína; Variedade.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100024

OTIMIZAÇÃO DE MEIO DE CULTURA PARA A BANANEIRA (Musa cavendishii L.)
Provedor de dados: 63
Autores: SOUZA,G.M; GONÇALVES,A.N.
Através dos dados de concentração de nutrientes minerais da bananeira, formulou-se um meio de cultura específico para Musa cavendishii var. nanicão. Os resultados indicaram aumento das taxas de multiplicação mesmo com redução das concentrações de 6 - benzilaminopurin.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Musa cavendishii var. nanicão; Multiplicação de gemas; Meio de cultura.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100007

DESEMPENHO DE UM INJETOR DE FERTILIZANTES DO TIPO VENTURI PARA FINS DE FERTIRRIGAÇÃO
Provedor de dados: 63
Autores: FERREIRA,J.O.P; FRIZZONE,J.A; BOTREL,T.A.
Com o objetivo de avaliar as características hidráulicas de um injetor de fertilizantes do tipo Venturi, construído de polietileno, realizou-se um teste de desempenho em laboratório. O injetor utilizado foi o modelo Mazzei 1078, possuindo 200 mm de comprimento, 19,6 mm de diâmetro interno nas seções de entrada e saída e 7,6 mm de diâmetro interno no corpo cilindrico ("garganta"). Os testes foram realizados às pressões de alimentação de 10, 15, 20, 25 e 30 m.c.a., com os respectivos diferenciais de pressão: 2, 3 e 4; 4, 5 e 6; 4, 5 e 6; 6 e 7; 7 e 8 m.c.a.. Os parâmetros de desempenho analisados foram curvas de vazão de sucção versus tensão de sucção e rendimento. Os pares de valores de vazão de sucção e tensão de sucção foram submetidos à análise...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Injetor Venturi; Desempenho hidráulico; Fertirrigação.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100015

INFLUÊNCIA DO ESTÁDIO DE MATURAÇÃO E DA COBERTURA COM POLIETILENO NA CONSERVAÇÃO DE TOMATES FRIGORIFICADOS
Provedor de dados: 63
Autores: KLUGE,R.A; RODRIGUES,D.S; KALIL,G.P.C; RUSSO,R; LUCAS,M.B; MINAMI,K.
O efeito do estádio de maturação (verde, rosa e vermelho) e da embalagem (com polietileno perfurado, com polietileno selado e sem polietileno) sobre a conservação por refrigeração de tomates `Santa Clara', foi estudado em frutos armazenados por 7, 14 e 21 dias a 13 ± 0,5oC e 80 ± 10% UR (+ 2 dias de comercialização simulada sob temperatura ambiente). A coloração dos frutos aumentou ao longo do armazenamento e comercialização para os três estádios, independente da embalagem utilizada. O uso de sacos de polietileno, principalmente selado, foi importante para a redução das perdas de peso dos frutos, não havendo efeito do estádio de maturação sobre esta variável. As podridões aumentaram substancialmente aos 21 dias de armazenamento para os estádios rosa e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polietileno; Estádio de maturação; Armazenamento; Tomate.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000100002

INFLUENCE OF CITRUS LEPROSIS ON THE MINERAL COMPOSITION OF Citrus sinensis LEAVES
Provedor de dados: 63
Autores: Nogueira,N. de L.; Rodrigues,J.C.V.; Cabral,C.P.; Prates,H.S.
Citrus leprosis is the main viral disease affecting citrus in Brazil. Viral diseases can affect the mineral composition of citrus leaves, inducing mineral deficiencies. The aim of this work was to verify the influence of citrus leprosis on the mineral composition of citrus leaves, cultivar Pera. Orange seedlings were grown in pots containing sterile soil, and kept under greenhouse conditions. When plants had 15 to 20 leaves, they were infested with the mite Brevipalpus phoenicis, the leprosis vector, collected from infected citrus plants. Other plants were not infested, and were used as the control. Ninety days after infestation, all the infested plants presented leprosis lesions. The six upper leaves of each plant were collected and the determination of...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Citrus; Leprosis; Mineral composition; Leaf analysis.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161996000200026

การศึกษาความปลอดภัยของสาหร่ายสีเขียวแกมน้ำเงิน Spirulina ตากแห้ง ซึ่งเลี้ยงจากน้ำดีเกลือเข้มข้น (น้ำทิ้งจากนาเกลือ)
Provedor de dados: 106
Autores: Duangchan Hengsawadi; Pongsri Jittanoonta; Yaovadee Cuptapun; Somboon Poopat; Chanya Pukkavesa; Jakkrapong Limpanussorn; Prapaipat Klungsupya.
Tipo: PhysicalObject
Palavras-chave: Spirulina product; Safety study; Rat; Beheavior; Body weight; Food consumption; สาหร่ายสีเขียวแกมน้ำเงิน; ความปลอดภัยในการบริโภค; สัตว์ทดลอง; พฤติกรรม; ลักษณะทางสัณฐานวิทยา; การเปลี่ยนแปลงน้ำหนักตัว; การกินอาหาร; ค่าทางโลหิตวิทยา.
Ano: 1996
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5132

ผลกระทบของการปลูกสวนป่าต่อลักษณะดินในพื้นที่ลาดชัน บริเวณดอยอ่างขาง จังหวัดเชียงใหม่
Provedor de dados: 106
Autores: Tawatchai Jamrassang.
Thesis (M.Sc. in Environmental Science)
Tipo: PhysicalObject
Palavras-chave: Forest plantation; Soil properties; Slope land; Impact; Doi Angkhang; สวนป่า; ลักษณะดิน; พื้นที่ลาดชัน; พื้นที่ป่าเสื่อมโทรม; พื้นที่ทำการเกษตรแบบไร่เลื่อนลอย; คุณสมบัติดิน; การคัดเลือกพันธุ์ไม้; ดอยอ่างขาง.
Ano: 1996
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5473

Cassava industry in Thailand: The status of technology and utilization
Provedor de dados: 106
Autores: Sriroth, K.
Palavras-chave: Cassava; Industry; Thailand; Status; Technology; Utilization.
Ano: 1996
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4850

การใช้ Rapid Visco Analyzer (RVA) ควบคุมคุณภาพในกระบวนการผลิตก๋วยเตี๋ยว
Provedor de dados: 106
Palavras-chave: กระบวนการ; ผลิต; ก๋วยเตี๋ยว.
Ano: 1996
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4848

Physicochemical changes in cassava starch stored at different humidity and its sorption isotherm
Provedor de dados: 106
Autores: Sriroth, K.; Wanlapatit, S.; Wuttijamnong, P.
Palavras-chave: Physicochemical; Changes; Cassava; Starch.
Ano: 1996
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4851

การปนเปื้อนของเชื้อจุลินทรีย์ที่ทำให้เกิดโรคในวัตถุดิบสำหรับผลิตน้ำพริกสำเร็จรูป และการศึกษาระยะเวลาในการอบเพื่อลดปริมาณ
Provedor de dados: 106
Autores: Siriporn Stonsaovapak; Pramote Tammarate; Kanchanich Vachanavinich.
Initial microbial loads of raw materials such as onion, garlic, dried shrimp, dried chilli and shrimp paste (kapi) that used in producing ready-made chilli paste were analysed. The results indicated that most of them contained high numbers of microorganisms. The total viable counts ranged from log10 CFU/g 4.279 – 7.778. The heaviest contamination was dried chilli. Escherichia coli were found between &lt;3 - 4.6 x 102 MPN/g. None of them was found to contain Salmonella spp. Staphylococcus aureus and Bacillus cereus were found ranging from log10 CFU/g 0 - 3.301 and 0 - 2.000, respectively. Clostridium perfringens was in the range of log10 CFU/g 1.000 – 4.623 and found in all kinds of raw materials, with high counts in dried chilli. After heat treatment at...
Tipo: PhysicalObject
Palavras-chave: Ready-made chilli paste; Raw materials; Reduction; Clostridium perfringens; น้ำพริกสำเร็จรูป; วัตถุดิบ; การลดปริมาณเชื้อจุลินทรีย์; เชื้อโรคในอาหาร; ระยะเวลาในการอบ; การปนเปื้อนเชื้อจุลินทรีย์; จุลินทรีย์ก่อโรค.
Ano: 1996
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5133

The Status of Cassava Sarch Industry in Thailand
Provedor de dados: 106
Autores: Sriroth, K.
Palavras-chave: Cassava; Sarch; Industry.
Ano: 1996
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4849

Field diet of the grasshopper Abracris dilecta Walker (Orthoptera, Acrididae)
Provedor de dados: 104
Autores: Sperber,Carlos Frankl.
Abracris dilecta Walker, 1870 (Orthoptera, Acrididae, Ommatolampinae) ate leafs of at least 14 plant species, in the families Asteraceae, Lamiaceae, Malvales (Sterculiaceae, Tiliaceae or Malvaceae), Poaceae, Fabaceae, Verbenaceae, Aristolochiaceae, Rubiaceae and Melastomataccae. Elephantopus mollis H.B.K. (Asteraceae) and Hyptis suaveolens Poit. (Lamiaceae) comprised 50% of the diet. The diet breadth of A. dilecta was compared to that of other 11 grasshopper species of the same sub-family, with rarefaction curves. The number of plant species eaten by A. dilecta was greater than that of nine other grasshopper species of the same sub-family (Rhachicreagra spp.) but was lower then two others (Microptylopteryx hebardi Rehn, 1905 and Rhachicreagra astytophallus...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Herbivory; Diet breadth; Tropical dry forest edge; Neotropical region; Brazil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100012

Sexual colour patterns in the sandperch Pseudopercis numida Ribeiro (Osteichthyes, Pinguipedidae)
Provedor de dados: 104
Autores: Paiva,Melquíades Pinto; Andrade,Magda Fernandes de.
This communication deals with the sexual colour patterns in the sandperch Pseudopercis numida Ribeiro, 1903, a benthonic fish of commercial importance, endemic to the Brazilian continental shelf, occurring off the coasts from Espírito Santo to Rio Grande do Sul States. The males have the head, the dorsal part of the body, and the pectoral and caudal fins blackishes, whereas the females have them brown-yellowishes. Such patterns are constant characters, not related to maturity or breeding seasons.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Osteichthyes; Pseudopercis numida; Sexual colours; Brazilian ichthyofauna.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400022

Biologia reprodutiva da cobra-coral Erythrolamprus aesculapii Linnaeus (Colubridae), no Sudeste do Brasil
Provedor de dados: 104
Autores: Marques,Otávio A.V.
Dissection of 286 specimens of the "false" coral snake Erythrolamprus aesculapii Linnaeus, 1766, combined with data on captive individuais, provided information on the reproductive biology of this colubrid snake. Adult females (x snout-vent length = 74.5cm) attain larger body size than males (x SVL = 62.6). Clutch size ranged from one to eight eggs and was correlated with maternal body size. Neonates measured 20.2-22.5cm SVL and weighed 5.1-5.8g. Males attain sexual maturity earlier than females. Reproduction seems to be aseasonal, with vitellogenesis occurring throughout the year. Apparently the growth rate of folheies decreases in the dry season, possibly due to lower tempeiatures during this period. Multiple clutches were recorded in captive snakes....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Xenodontini; Erythrolamprus aesculapii; Aseasonal reproduction; Multiple clutches.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300022

Criadouros de imaturos de mosquitos (Diptera, Culicidae) introduzidos em mata preservada na área urbana de Curitiba, Paraná, Brasil
Provedor de dados: 104
Autores: Silva,Mario Antonio Navarro da; Lozovei,Ana Leuch.
Mosquitoes ecological features were studied in a preserved forest - Capão da Imbuia - placed in the urban area of Curitiba City, Paraná, Brasil. In this research were noted immature forms in artificial recipients made by different materiais. Five species were found in this recipients: Culex (Culex) acharistus Root, 1927, Culex (Culex) group coronator Dyar &amp;amp; Kanb, 1906, Culex (Culex) eduardoi Casal &amp;amp; Garcia, 1968, Culex (Culex) quinquefasciatus Say, 1823 and Toxorhynchites (Lynchiella) theobaldi (Dyar &amp;amp; Kanb, 1906). It's very important to know the mosquitoes that in urban area due they carry human desease agents by some species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Culicidae; Artificial recipients; Ecology.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400021

Os Pinnotheridae de Santa Catarina e Rio Grande do Sul, Brasil (Decapoda, Brachyura)
Provedor de dados: 104
Autores: Martins,Sidnei Terezinha S; D'Incao,Fernando.
Twelve species of Pinnotheridae from Santa Catarina and Rio Grande do Sul States, Brazil, are redeseribed and illustrated; a key of identification is presented. Clypeasterophilus stebbingi Rathbun, 1918; Pinnotheres garthi Fenucci, 1975 and Pinnixa brevipollex Rathbun, 1898 are reported for the first time for Brazil. Clypeaslerophilus stebbingi Rathbun, 1918 and Tumidotheres maculatus Say, 1818, are new record for Santa Catarina. Fabia insularis Melo, I971 and Pinnotheres emiliai Melo, 1971 are revalitaded; Fabia sebastianensis Rodrigues da Costa, 1969; Pinnotheres garthi Fenucci, 1975; Pinnotheres emiliai Melo, 1971 and Pinnixa patagoniensis Rathbun, 1918 are new records for Rio Grande do Sul. Pinnixa brevipollex Rathbun, 1898 is a new record for Santa...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Decapoda; Pinnotheridae; Distribution; Identification; Brazil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100001

Eurytrema coelomaticum (Giard &amp;amp; Billet) (Digenea, Dicrocoeliidae) em Bradybaena similaris (Férussac) (Gastropoda, Xanthonychidae): alterações nos depósitos de cálcio e na função reprodutiva do primeiro hospedeiro intermediário
Provedor de dados: 104
Autores: Paschoal,Solange V.; Amato,Suzana B.
The influence of the parasitism by the digenetic trematode Eurytrema coelomaticum (Giard &amp;amp; Billet, 1892) over the calcium mobilization and the reproductive function of its first intermediate host, the snail Bradybaena similaris (Férussac, 1821) was experimentally studied in infected and uninfected snails maintained in laboratory under controlled conditions of nutrition, humidity and temperature. The calcium of the shells of infected and uninfected snails was quantified by using a technique of volumetric complexation. The amount of calcium present in the tissue was evaluated by using the histochemistry techniques of Dahl and von Kossa. The alteration in the reproductive function was evaluated through the egg production, and by histological follow up...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eurytrema coelomaticum; Bradybaena similaris; Calcium deposits; Parasitic castration.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200011

Clusiamyia nitida gen.n. e sp.n. (Diptera, Cecidomyiidae, Cecidomyiidi) associada com Clusia lanceolata Camb. (Clusiaceae) no Brasil
Provedor de dados: 104
Autores: Maia,Valéria Cid.
A new genus and species of Cecidomyiidi (Cecidomyiidae, Diptera) from Rio de Janeiro, Brazil, are described and illustrated (exuvia, male, female and gall). The species was found in association with Clusia lanceolata (Clusiaceae).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cecidomyiidae; Diptera; Clusiaceae; Neotropical; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400003

Scoposcartula Young: descrições de uma espécie nova e da fêmea de S. Flavovittata Mejdalani, e redescrição de S. Concinna (Perty) comb.n. (Homoptera, Cicadellidae, Cicadellini)
Provedor de dados: 104
Autores: Cavichioli,Rodney R; Mejdalani,Gabriel L.
Scoposcartula tobiasi sp.n. is described from the states of Rio de Janeiro, Minas Gerais, and São Paulo, southeastern Brazil. The previously unknown female of Scoposcartula flavovittata Mejdalani, 1992 is described from the state of Rio de Janeiro. Tettigonia concinna Perty, 1833 is transferred to Scoposcartula Young, 1977 based on a male from the state of Bahia, northeastern Brazil.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cicadellidae; Scoposcartula; New species; Taxonomic notes; Brazil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400017

Novos registros e uma espécie nova de Trichorhina Budde-Lund (Isopoda, Oniscidea, Platyarthridae) do Sul do Brasil
Provedor de dados: 104
Autores: Araújo,Paula Beatriz de; Buckup,Ludwig.
From material collected in Santa Catarina and Rio Grande do Sul States (Brazil) two new records of Trichorhina are presented (T. argentina Vandel, 1963 and T. tomentosa (Budde-Lund, 1893) as well as a description of a new species bicolor sp.n.). Lectotypes and paralectotypes of T. argentina are designated. A key for the species in the study area is also included.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Isopoda; Oniscidea; Trichorhina; New species; Brazil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300028

Homonímia em Tiphiidae (Hymenoptera)
Provedor de dados: 104
Autores: Kumagai,Alice Fumi; Almeida,Maria Christina de; Graf,Vinalto.
A new name, Tiphiallen nom.n. is proposed for Allenella Genise, 1992 (Hymenoptera, Tiphiidae), preoccupied by Iredale, 1944 (Mollusca, Gastropoda).
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Hymenoptera; Tiphiidae; Allenella; Tiphiallen; Homonymy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300029

Taxonomic notes on some Polyglyptini: descriptions of new genus and new species (Homoptera, Membracidae, Smiliinae)
Provedor de dados: 104
Autores: Sakakibara,Albino M.
Taxonomic notes on some Polyglyptini; descriptions of new genus and new species (Homoptera, Membracidae, Smiliinae). The genera Hemiptycha Germar, Metheisa Fowler, Maturnaria Metcalf, Aphetea Fowler, Dioclophara Kirkaldy, and Phormophora Stål, are redescribed; Creonus, gen.n. (type species: Maturna lloydi Funkhouser, 1914), and Aphetea robustula, sp.n. (from Bolivia), are described. Some nomenclatural changes are introduced, as follow: - Hemiptycha Germar, 1833 = Polyrhyssa Stål, 1869, syn.n.: - Hemiptycha cultrata (Coquebert, 1801), comb.n., = Polyglyptodes flavocostatus Haviland, 1925, syn.n., = Polyrhyssa cultrata maculata Fonseca, 1942, syn.n. - Hemiptycha obtecta (Fabricius, 1803) = Hille herbicola Haviland, 1925, syn.n. - Maturnaria ephippigera...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Homoptera; Membracidae; Smiliinae; Polyglyptini; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200015

A new species of Azya mulsant from Brazil (Coleoptera, Coccinellidae) feeding on pulvinaria paranaensis hempel (Homoptera, Coccidae) on ilex paraguariensis st.hil. (Aquifoliaceae)
Provedor de dados: 104
Autores: Almeida,Lúcia Massutti de; Carvalho,Regina Célia Zonta de.
Azya ilicis sp.n. from Brazil, is described. The new taxon is integrated into the most recent key to species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coleoptera; Coccinellidae; Azya; Homoptera; Coccidae; New species.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300014

Iandumoema uai, a new genus and species of troglobitic harvestman from Brazil (Arachnida, Opiliones, Gonyleptidae)
Provedor de dados: 104
Autores: Pinto-da-Rocha,Ricardo.
A new genus and species of harvestman, landumoema uai, is described based on material from Gruta Olhos d'Água, Minas Gerais State, Brazil. Its troglomorphisms include depigmentation on body, legs and eyes. It is the third troglobitic species of harvestman recorded from Brazilian caves and the second in the family Gonyleptidae.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arachnida; Opiliones; Gonyleptidae; Troglobite; Cave fauna.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400005

Alteraçoes morfológicas dos estádios de crescimento de Amphilocus neapolitanus Della Valle (Gammaridea, Amphilochidae) e Ampithoe ramondi Audouin (Gammaridea, Ampithoidae), anfípodes associados à alga Sargassum cymosum
Provedor de dados: 104
Autores: Leite,Fosca P.P.
A descriptive account is given of the post-embrionic development of Amphilochus neapolitanus Della Valle, 1893 and Ampilhoe ramondi Audouin, 1826 living on Sargassum cymosum C. Agardh, 1820 of Ubatuba, Brazil (23º30'S-45º06'W) through the growth stage based on the morphological changes at each moult. The growth stages are described on the increase of antennal and pleopodal articles number and morphological alterations of gnathopods. The number of stages was found to be different for males and females and the maturity occurs after 6 and 5 post marsupial stages for A. neapolitanus and A. ramondi respectively.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphipods gammarids; Growth stages; Morphological variations.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100004

Anomalias e patologias dentárias em Arctocephalus G. Saint-Hilaire &amp;amp; Cuvier (Pinnipedia, Otariidae) da costa do Rio Grande do Sul, Brasil
Provedor de dados: 104
Autores: Drehmer,César Jaeger; Ferigolo,Jorge.
The studied species were Arctocephalus australis (Zimmermann, 1783) and Arctocephalus tropicalis (Gray, 1872), (five specimens of each one). Anomalies were discussed under the light of theories which relate the ancestry of pinnipeds with the Ursidae; as well as concerning the evolutionary trends supposed for the Otariidae. Pathologies were related to alimentary and reproductive habits.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pinnipedia; Otariidae; Arctocephalus; Anomaly; Pathology; Teeth.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400008

Primeiro estágio juvenil de Aegla prado Schmitt (Crustacea, Decapoda, Anomura, Aeglidae)
Provedor de dados: 104
Autores: Bond-Buckup,Georgina; Bueno,Alessandra A.P; Keunecke,Karina A.
The first juvenil stage of Aegla prado Schimitt, 1942 is described and illustrated. The species A. prado showed a direct development, without the swimming free larval form. The most important appendages of the first juvenile stage were analysed: first and second antenna, mandible, first, second and third maxillipeds, first and fifth pereopods, telson and uropods. Setal formula for the first stage and setae characteristics are presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crustacea; Decapoda; Aegla prado; Juvenil; Post embrionary development.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400023

Larvas de Siderone marthesia nemesis (Illiger) (Lepidoptera, Nymphalidae, Charaxinae) em cerrado de Brasília, Distrito Federal, Brasil
Provedor de dados: 104
Autores: Morais,H.C.; Diniz,I.R.; Silva,J.R.
Caterpillars of Siderone marthesia nemesis (Illiger, 1802) (Nymphalidae, Charaxinae) have been found on Casearia sylvestris Sw. (Flacourtiaceae), during the second half of the rainy season in an area of cerrado near Brasília, Distrito Federal, Brazil. They occurred at very low density and are cryptic at all instars. The pupal stage does not occur on the host plant. Average duration of the pupa under laboratory conditions is 14.4 days.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Charaxinae; Siderone; Hostplant; Crypsis.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200007

Comments on plant-herbivore-parasitoid interactions in two cerrado areas of Southern Brazil
Provedor de dados: 104
Autores: Caldas,Astrid; Passos,Fernando de C.
This work describes some interactions between lepidopteran larvae and braconid parasitoids on a group of plants at two sites. There was no significant difference in parasitoid diversity between the sites (Shannon index, p&lt;0.05), and similarity was 62.5%, estimated through Sorensen's index. The diversity of hosts was also not different (p&lt;0.05), but the similarity of host diversity was only 28.5%. This suggests that the parasitoids have strategies for maintaining similar reproduction rates, population densities and communities in areas with different potential hosts.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Braconidae; Diversity; Community; Lepidoptera; Similarity.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200010

The species of Hippolyte Leach (Crustacea, Caridea, Hippolytidae) from Terminos Lagoon, southwestern Gulf of Mexico
Provedor de dados: 104
Autores: Negreiros-Fransozo,M.L; Barba,E; Sanchez,A.J; Fransozo,A; Ráz-Guzmán,A.
The taxonomic identity of specimens of the genus Hippolyte Leach, 1814 of Laguna de Términos was considered including the colour and the presence-absence of tufts of plumose setae on the dorsal surface of the carapace and abdomen as secondary characteristics to morphological features of taxonomic value. Two groups were formed based on appearance: one transparent with setae and another green without setae. The analysis of five morphological characteristics in adult females of the two groups made it possible to identify only H. zostericola (Smith, 1873). Fecundity and fertility were similar (0.5&gt;p&gt;0.2) in both groups. The first zoea of both groups were also morphologically similar. Considering these results, it is concluded that the only species...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hippolyte; Zoea; Fertility; Fecundity; SW Gulf of Mexico.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300002

Contribuição ao estudo de Lasiodera Gray e Philyra Laporte, gen. rev. (Coleoptera, Cleridae)
Provedor de dados: 104
Autores: Racca Filho,Francisco; Peracchi,Adriano Lucio.
This paper includes a revision of the species considered up to now in the genus Lasiodera Gray, 1832 with a detailed study of external morphology as well as males external genitalia which made to propose the separation into two genera, Lasiodera Gray, 1832 and Philyra Laporte, 1836, beeing the second one revalidated, which is now constituted by the following species: Philyra basalis (Racca Filho &amp;amp; Santos, 1988) comb.n., P. helopioides Laporte, 1836 comb.n., P. jucunda (Schenkling, 1900) comb.n., P. quadrivittata (Peracchi, 1960) comb.n., P. stenochioides (Chevrolat, 1874) comb.n. and P. viridis (Pic, 1936) comb.n.. The male genital structures, showing specific differences, are illustrated and discussed. Lasiodera malleri (Pic, 1933) is considered a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coleoptera; Cleridae; Lasiodera; Philyra.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200008

Aspectos biológicos, morfológicos e comportamentais de adultos de Podisus sculptus Distant (Heteroptera, Pentatomidae)
Provedor de dados: 104
Autores: Nascimento,Eduardo Cândido do; Zanuncio,José Cola; Menin,Eliane; Ferreira,Paulo Sérgio Fikza.
Some biological, morphological and behavioral aspects of adults Podisus sculptus Distant, 1889 (Heteroptera, Pentatomidae) fed with Bombyx mori Linnaeus, 1758 (Lepidoptera, Bombycidae) (fourth and fifth instar caterpillars) and Tenebrio molilor Linnaeus, 1758 (Coleoptera, Tenebrionidae) (third and fourth instar caterpillars) were studied and no differences were found between these two preys. Average values for the parameters studied were: period of pre-oviposition (6.14 days), oviposition (8.57 days) and pos-oviposition (3.57 days); number of eggs/female (97.71); number of postures/female (3.96); female weight (68.90mg) and male weight (47.43mg). Podisus sculptus has brownish color, and four yellow spots in the scutelum: one close to the head and three...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heteroptera; Podisus sculptus; Behavior; Biological aspects; Morphology.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100015

Eotetranychus tremae De Leon: additional descriptions and illustrations (Acari, Tetranychidae)
Provedor de dados: 104
Autores: Flechtmann,Carlos H.W.
Eotetranychus tremae De Leon, 1957 is reported for the second time from Brazil; additional descriptive characters and figures are given.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tetranychidae; Eotetranychus; Plant mites; Spider mites; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100019

Conspecific mimics and low host plant availability reduce egg laying by Heliconius erato phyllis (Fabricius) (Lepidoptera, Nymphalidae)
Provedor de dados: 104
Autores: Mugrabi-Oliveira,Elna; Moreira,Gilson R.P.
Oviposition response of Heliconius erato phyllis (Fabricius, 1775) (Lepidoptera, Nymphalidae) to variation in host plant availability, Passiflora suberosa Linnaeus (Passifloraceae), and to presence of conspecific eggs and larvae was determined through choice experiments performed under insectary conditions. Freeze dried, painted eggs and larvae were used as mimics for testing presence of conspecific effects. Females laid more eggs on intact P. suberosa shoots without conspecifics than on those with H. erato phyllis egg and first instar mimics in both simultaneous and sequential choice trials. Oviposition response to variation in host plant availability was determined through no-choice trials, under host plant densities varying from 0.3 to 8.3 plants per...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heliconius; Passiflora; Oviposition behavior; Egg-load assessment; Plant density recognition.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400014

Associação entre Ophionereis reticulata (Say) (Ophiuroidea, Ophionereididae) e Malmgreniella variegata (Treadwell) (Polychaeta, Polynoidae) das praias de Salvador, Bahia, Brasil
Provedor de dados: 104
Autores: Santa-lsabel,Lêda Maria de; Cerqueira,Walter R. Pinto; Alves,Orane Falcão de Souza.
The occurrence and distribution records of the association between Ophionereis reticulata (Say) and Malmgreniella variegata (Treadwell) in Northeastem Brazil, and the redescription of M. variegata, are included.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ophiuroidea; Ophionereididae; Malmgreniella variegata; Polychaeta; Polynoidae.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100013

Nova espécie de Acampsis Wesmael (Hymenoptera, Braconidae, Sigalphinae) do Brasil
Provedor de dados: 104
Autores: Penteado-Dias,Angélica Maria.
Acampsis brasiliensis, sp.n. is described from Brazil. This is the first report of this genus to New World.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hymenoptera; Braconidae; Acampsis; Systematics.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200004

Contribuição a identificação e distribuição das subespecies de Lutreolina crassicaudata (Desmarest) (Marsupialia, Mammalia)
Provedor de dados: 104
Autores: Graipel,Maurício; Miller,Paul Richard M; Ximenez,Alfredo.
The subespecie Lutreolina crassicaudata paranalis Thomas, 1923 is validated through analysis of variance of 13 craniometrical measurements. There is significam separation for sex in 10 of 13 craniometrical measurements. The possibility of validation of subespecies L. c. bonaria Thomas, 1923 through coloration variation is discussed.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Distribution; Subespecies; Craniometrical measurements analysis; Skin; Sexual dimorfism.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300026

Soldier head morphology of the Neotropical termites: Embiratermes festivellus Silvestri and Spinitermes brevicornutus (Desneux) (Isoptera, Termitidae)
Provedor de dados: 104
Autores: Costa-Leonardo,Ana Maria; Barsotti,Raquel Cristina.
Heads of soldier termites belonging to the species Embiratermes festivellus (Silvestri, 1901) (Termitidae, Nasutitermitinae) and Spinitermes brevicornutus (Desneux, 1904) (Termitidae, Termitinae) were examined using scanning electron microscopy. Individual glandular openings are present in the upper part of E. festivellus head and correspond to class 3 glandular cells. Campaniform sensillae occur in both termite heads, but this sensorial structure was not observed in the nasus extremity of E. festivellus soldier.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Isoptera; Embiratermes; Spinitermes; Termite; Campaniform sensillum.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200003

Albiniana gen.n. e revalidação de Alocha Melichar (Homoptera, Cicadellidae, Cicadellinae)
Provedor de dados: 104
Autores: Cavichioli,Rodney R.
The genus Alocha Melichar, 1926 (type species: Telligonia sórdida Signoret, 1855) is revalidated. The following new combinations are eslablished: Alocha lugubris (Young, 1977), A. própria (Young, i977)and A. rossi (Young, 1977), A. sórdida (Signoret, 1855) is a comb. rev. A new genus, Albiniana (type-species: Paromenia weyrauchi Young, i977), is described.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cicadellidae; Cicadellinae; Alocha; Albiniana; Neotropical.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300017

Synonymic notes on Lepidanthrax osten sacken and redescription of L. tinctus (Thomson) (Diptera, Bombyliidae, Anthracinae)
Provedor de dados: 104
Autores: Lamas,Carlos José Einicker; Couri,Márcia Souto.
Based on the analysis of types, Lepidanthrax brachialis (Thomson, 1869) and L. quinquepunclatus (Thomson, 1869) are considered junior synonyms of L. tinctus (Thomson, 1869). Notes and illustrations of the type are presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diptera; Bombyliidae; Lepidanthrax; Synonymic notes.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400007

Natural history of three Hydropsychidae (Trichoptera, Insecta) in a "cerrado" stream from northeastern São Paulo, Brazil
Provedor de dados: 104
Autores: Oliveira,Leandro Gonçalves; Froehlich,Claudio Gilberto.
The faunal composition of the Hydropsychidae (Trichoptcra) of Pedregulho Stream is presented. Feeding habits of larvae and behavioural aspects of both larvae and adults are described.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trichoptera; Hydropsychidae; Smicridea; Leptonema; Biology; Larvae; Behaviour.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300023

Aspectos da distribuição de Pantopoda em Sargassum de Itanhaém e Ubatuba, São Paulo, Brasil
Provedor de dados: 104
Autores: Varoli,Franci Mary Fantinato.
Qualitative and quantitative aspects of the distribution of Pantopoda species living on Sargassum of Ubatuba and Itanhaém (northern and southern coast at São Paulo State, respectively) were studied. The results showed the occunence of nine Pantopoda species. The highest relative frequency was assigned to Tanystylum isahellae Marcus, 1940. In general the density of Pantopoda species was related to that of Hydrozoa covering Sargassum.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pantopoda; Sargassum fauna; Distribution; São Paulo.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100003

Descrição de uma espécie nova de Calyozina Enderlein (Hymenoptera, Bethylidae) do Brasil
Provedor de dados: 104
Autores: Azevedo,Celso Oliveira.
Calyozina dilatata sp.n., from northern Brazil is described and illustrated. This species is recognized by having the fifth foretarsomere dilated. With six scanning micrografies.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hymenoptera; Bethylidae; Calyozina; Neotropical region; Pectinate antennae.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400013

Vacúolos de gás e flutuação em Difflugia mitriformis Wallich (Protista, Rhizopoda, Testaceolobosea)
Provedor de dados: 104
Autores: Torres,Vladimir Stolzenberg.
The natural formation of gas vacuoles as a method of locomotion is described for Difflugia mitriformis Wallich, 1984. These vacuoles may contain different compositions of gases, basicly carbodioxyde or oxigen, with a membranous limitation similar or identical to other types of vacuoles. Those vacuoles are utilised by the organism as a mode of dislocation frorn the bottom to the water surface by flotation permiting better conditions for the survival of the individual, with the consequence of the perpetuance of the taxon.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gas vacuoles; Difflugia mitriformis; Flotation.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100006

Efectos del parasitismo sobre el tejido branquial en peces cultivados: estudio parasitologico e histopatologico
Provedor de dados: 104
Autores: Martins,Maurício Laterça; Romero,Nicolás Garcia.
One hundred four out of 225 diagnosticated cases were myxosporidian, monogenean, Ichthyophthirius multifiliis Fouquet, 1876 and bacterial diseases in Piaractus mesopotamicus Holmberg, 1887 (pacu), Colossoma macropomum Cuvier, 1818 (tambaqui) and tambacu, at Aquaculture Center, Universidade Estadual Paulista (UNESP), Jaboticabal, São Paulo, Brazil, between 1992 and 1995. The gills were fixed in 10% buffered formalin solution to posterior histologic routine. It was observed Henneguya sp. cysts into the capillaries of the secondary lamellae, encapsulated by the respiratory epithelium cells. It provoked adherence of the adjacent lamellae, hyperplasia, congestion, oedema and epithelium displacement. Monogeneans infestations by Anacanthorus penilabiatus Boeger,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Protozoa; Monogenea; Histopathology; Brazilian fish.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200017

Sobre a larva de Charadrella Mallacophaga Lopes (Diptera, Muscidae)
Provedor de dados: 104
Autores: Couri,Márcia Souto.
Descriptions and illustrations are made of the second larval instar of the larviparous species Charadrella mallacophaga.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diptera; Muscidae; Charadrella mallacophaga; Larval morphology.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300009

Preferência por estratos florestais e por substâncias odoríferas em abelhas Euglossinae (Hymenoptera, Apidae)
Provedor de dados: 104
Autores: Oliveira,Mareio Luiz de; Campos,Lúcio Antônio de Oliveira.
Euglossinae bees of two areas of Terra Firme forest, near Manaus, Amazonas, Brazil were studied. During one year the collections were done fortnightly, using traps with eight kinds of scent baits. The traps were placed in the understory and in tree crowns. Some species showed a very clear vertical stratification in the forest. The comparison between the strata studied showed that the fauna of one understory is more similar to other than fauna of crowns and the similarity between fauna of understory and fauna of crown of the the two areaswas low. Some species were specialists while most were generalists in their choice of scent baits. Some species varied its preferences during the year.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazônia; Euglossinae; Scent baits preferences; Stratification.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400025

Alimentação e variação sazonal na freqüência de capturas de anuros em duas localidades do Brasil central
Provedor de dados: 104
Autores: Moreira,Glória; Barreto,Larissa.
The feeding ecology and the sazonal variation in capture frequencies of anurans in two localities of Central Brazil was studied. The anuran capture frequencies were analysed counting specimen numbers collected in pitfall traps during the dry and rainy seasons. Anurans were caught more frequently during the rainy season. The diet of adults Proceratophrys sp., Eleutherodactylus sp., Bufo paracnemis Lutz, 1925, and Physalaemus cuvieri Fitzinger, 1826 were studied through the analysis of individual stomach contents. Results showed that the type of diet varied among the species studied.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphibia; Anura; Feeding ecology; Brazil; Savanna.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200002

Morfologia dos imaturos e ciclo evolutivo de Anacassis dubia (Boheman), A. fuscata (Klug), A. languida (Boheman), A. phaeopoda Buzzi e A. punctulata (Klug) (Coleoptera, Chrysomelidae, Cassidinae)
Provedor de dados: 104
Autores: Buzzi,Zundir José.
Eggs, fifth instar larvae and pupae of A. dubia (Boheman, 1854), A. fuscata (Klug, 1829), A. languida (Boheman, 1854), A. phaeopoda Buzzi, 1976 and A. punctulata (Klug, 1829) are described. Imatures stages were reared in a stove Biometron under temperature of 25±2ºC, photophase of 12 hours and relative humidity of 80±5%. The larvae of A. dubia and A. languida were fed with leaves of Baccharis relusa DC; A. fuscata with leaves of Baccharidastrum argutum (Less) Cabrera; A. phaeopoda with leaves of Baccharis gaudichaudiana DC. and larvae of A. punctulata with leaves of Baccharis trimera (Less) A. DC.. All plants belonging to the Asteraceae. Two forms of A. fuscata were studied: A. fuscata (Klug, 1829) and A. fuscata form=unicolor (Burmeister, 1870) n.syn. and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coleoptera; Chrysomelidae; Cassidinae; Anacassis; Imatures; Life cycle.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100020

On some Polyglyptini (Homoptera, Membracidae, Smiliinae): new genus, new species and taxonomic notes
Provedor de dados: 104
Autores: Sakakibara,Albino M.
The following genera are treated: Ennya Stål, Gelastogonia Kirkaldy, gen.rev. and Notogonia, gen. n.; six new species are described and some nomenclatural changes introduced, as follow: 1) Ennya Stål, 1866 = Mille Stål, 1867, syn.n.; E. conica (Fairmaire, 1846) = Oxygonia accuminata Buckton, 1903, syn.n., (Lectotype of E. conica here designated); E. dorsalis (Fairmaire, 1846) (Lectotype here designated); E. ecuadorensis (Fowler, 1894) sp.rev.; E. fasciata (Fallou, 1890) sp.rev.; E. maculicornis (Fairmaire, 1846), comb.n., (Lectotype here designated); E. rufomaculala Fallou, 1890, comb.n. = E. chlorisans Breddin, 1902 = E. nebulosa Breddin, 1902 = Gelastogonia funkhouseri Goding, 1928, syn.n.; E sobria (Walker, 1851), sp.rev., = Thelia perfecta Walker,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Homoptera; Membracidae; Smiliinae; New species; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100009

Lista comentada e ilustrada dos Caecidae (Mollusca, Prosobranchia, Mesogastropoda) da Operação Oceanográfica Geomar XII
Provedor de dados: 104
Autores: Gomes,Renata dos Santos; Absalão,Ricardo Silva.
The family Caecidae deserved special attention, among mollusks, because they occurred in more than 50% of studied stations in Oceanographic Operation Geomar XII, which was carried out in northern and southern coasts of Rio de Janeiro and Espírito Santo States (Brazil), respectively. At the time, Caecum brasilicum Folin, 1874, C. aff condylum Moore, 1969, C. circumvolutum Folin, 1867, C. johnsoni Winkley, 1908, C. someri Folin, 1867, C. striatum Folin, 1868, C. venosum Folin, 1867, C. floridanum Stimpson, 1851, C. massambabensis Absalão, 1994, C. butoti Jong &amp;amp; Coomans, 1989, C. ryssotitum Folin, 1867, C. nitidum (Stimpson., 1851) e C. cubitatum (Folin, 1868) were identitíed. C. venosum is reported, for the first time, since its original description,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mesogastropoda; Caecidae; Caecum; Taxonomy; Geographic distribution; Sintopy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200019

Notas e descrições em desmiphorini (Coleoptera, Cerambycidae, Lamiinae), com uma revisão do gênero Mimasyngenes Breuning
Provedor de dados: 104
Autores: Galileo,Maria Helena M; Martins,Ubirajara R.
Notes and keys to the species of Ischnoleomimus Breuning 1940; Malthonea Thomson, 1864 and Mimasyngenes Breuning, 1950 are given. Parablabia Breuning, 1959 is considered a synonym of Malthonea Thomson, 1864, and the following new combinations are made: M. guttata (Kirsch, 1889), comb n. and M. ruficornis Belon, 1903, both transferred from Parablabia. New taxa described: Ischnolea piim sp.n. (Bolívia); lschnoleomimus fovealus sp.n. (Bolívia); Malthonea cumbica sp.n. (Venezuela); Cicuiara gen.n., types pecies Exocentrus striatus Bates, 1866; E. nitidulus Bates, 1866 is transferred to Cicuiara; Mimasyngenes quiuira sp.n. (Brazil, São Paulo); M. icuapara sp.n. (Brasil, São Paulo; Argentina, Misiones); M. ytu sp.n. (Brazil, Minas Gerais and São Paulo)....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerambycidae; Desmiphorini; Lschnoleomimus; Malthonea; Mimasyngenes.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400009

Aspectos da reprodução de Palaemon pandaliformis (Stimpson) (Decapoda, Palaemonidae) no manguezal de Ratones, Florianópolis, Santa Catarina
Provedor de dados: 104
Autores: Müller,Yara Maria Rauh; Nazari,Evelise Maria; Bressan,Cristine Maria; Ammar,Dib.
Biometric and reproductive aspects of Palaemon pandaliformis (Stimpson, 1871) from Ratones Mangrove, Florianópolis, Santa Catarina, have been investigated. Individuals were monthly collected from August, 91 to July, 93 and the temperature and salinity registered. Biometry, sex-ratio, sexual maturity, fecundity and reproductive cycle have been determined. The temperature showed defined temporal distribution. This species presents animal reproductive cycle, relatively high individual and populational fecundity, and the ovigerous females were larger than males and other females of the same species.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Reproduction; Palaemon pandaliformis; Ratones mangrove; Fecundity.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300013

Description of a new species and the karyotype of the cavernicolous millipede Pseudonannolene Silvestri and the karyotype of Pseudonannolene strinatti Mauriès (Diplopoda, Pseudonannolenida, Pseudonannolenidae)
Provedor de dados: 104
Autores: Fontanetti,Carmem Silvia.
Pseudonannolene tocaiensis, sp.n. is described from Brazil, São Paulo, Itirapina. The karyotypes of P. tocaiensis, sp.n. and P. strinatti Mauriès, 1974 are also presented, both species are found in cave environments. P. tocaiensis has 2n=20, XY and P. strinatti, 2n=16; it was not possible to observe the sex determination mechanism in the latter.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diplopoda; Pseudonannolene; Cave millipedes; Cytogenetic; Millipedes.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200012

Microschema Stål gen. reval. and a correction in the labelling of the type specimen of Hoplophora straminicolor Stål (Homoptera, Membracidae)
Provedor de dados: 104
Autores: Sakakibara,Albino M; Creão-Duarte,Antônio J.
The genus Microschema Stål, 1869 (type species: Hoplophora straminicolor Stål, 1862) is here reinstated and redescribed. Micropepla Sakakibara, 1979 is considered its new synonym. Microschema straminicolor (Stål, 1862), comb.n. is also redescribed and illustrated; Micropepla mourei Sakakibara, 1979, is a new synonym. The holotype of Hoplophora straminicolor Stål (in the Museum of Stockholm) was mislabelled. The correction is here made and the true type specimen duly labelled as Holotype.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Homoptera; Membracidae; Microschema; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400019

Mallochianamyia, nome novo para Gayomyia Malloch (Diptera, Chamaemyiidae)
Provedor de dados: 104
Autores: Santos-Neto,Luiz Gonzaga dos.
A brief bibliography of Gayomyia Banks, 19i3 (Neuroptera, Hemerobiidae) and of Gayomyia Malloch, 1933 is presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gayomyia; Homonymy; Mallochianamyia; New name.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100008

Comunidades de Lepidópteros noturnos desfolhadores de eucalipto em três regiões do cerrado de Minas Gerais
Provedor de dados: 104
Autores: Fagundes,Marcílio; Zanuncio,José Cola; Lopes,Frederico Santos; De Marco Júnior,Paulo.
A diversified Lepidoptera fauna is found associated with Eucalyptus plantations in Brazil. From October 1990 to September 1991 twelve light traps were used in three regions of the Cerrado area with Eucalyptus plantations (Bom Despacho - BD, Três Marias - TM and Montes Claros - MC), in Minas Gerais State, Brazil. Twenty three Lepidoptera defoliator species were found in those regions. These species were affected by many factors, specially the plantation stage, the neighboring plant species, the type of brush vegetation and the species of Eucalyptus planted in a specific area. The saniples were not significantly different between regions in species richness (12 to 17 species; p=0.065) or eveness (0.53 to 0.70; p=0.779) in a randomized ANOVA test. Assuming a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lepidoptera; Eucalyptus; Faunistic diversity.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300024

Ciclo de vida de Sarconesia chlorogaster (Wiedemann) (Diptera, Calliphoridae, Toxotarsinae), criada sob condições de laboratório em dieta artificial
Provedor de dados: 104
Autores: Bonatto,Sionei Ricardo.
Bionomic characteristics of Sarconesia chloroüaster (Wiedemann, 1830) were obtained, rearing it with an artificial diet and a conlrolled temperature chamber set at 27±lºC, 70± 10% RH and 12 hours photophase. The duration of the wholeevolutive cycle ofS. cholorogaster was about 19.61 days. The incubation period was the shortest (14.30 hours), the pupal one (pre-pupal and pupal together) was the longest (9.57 days), followed by the larval period that had about 9.44 days. A life table for immature stages was done in order to obtain a survival curve. The average of the adults longevity was about 25.28 days. There is no statistical difference between the duration of male and female longevity. The duration of the periods of pre-posture and posture were almost...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diptera; Calliphoridae; Sarconesia chlorogaster; Bionomies; Artificial diet.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300018

Estudos sobre Difflugia lobostoma Leidy (Protista, Rhizopoda, Testacealobosea)
Provedor de dados: 104
Autores: Torres,Vladimir Stolzenberg.
This paper reports feeding habitats, most commom test constitution, and growing curvature obtained under cultivation conditions, and the knowing distribution and most commom Difflugia lobostoma.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Difflugia lobostoma; Cultivation; Growing curvature; Protista.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200016

Levantamento da fauna entomológica no estado do Paraná: II. Ctenuchidae (Lepidoptera)
Provedor de dados: 104
Autores: Marinoni,Renato C.; Dutra,Renato R.C.
In addition to the Survey of the Entomological Fauna in Paraná State, the Ctenuchidae were studied in its ecological and faunistic aspects. The material was collected using one light trap installed in eight different sites of the State: Antonina, São José dos Pinhais, Colombo, Ponta Grossa, Telêmaco Borba, Jundiaí do Sul, Guarapuava and Fênix, from October 1986 to September 1987. The total number of specimens and means values of capture were analyzed. Indices of diversity and evenness were used to discuss richness and dominance of species in each locality. Besides using ecological indices, the data were also compared by Clustering Analysis, Principal Coordinate Analysis and Linear Correlation Coefficient. The results were compared with meteorological and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ctenuchidae; Faunistic; Diversity; Community structure; Paraná State.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200014

Estudo comparativo da área ocupada pelos corpos pedunculados no cérebro de duas espécies de abelhas (Hymenoptera, Apoidea)
Provedor de dados: 104
Autores: Abdalla,Fábio Camargo; Cruz-Landim,Carminda da.
The present study compare the size of the corpora pedunculata (mushroom bodies) of Exomalopsis aureopilosa a quasi-social specie and Apis mellifera a eusocial specie of bees. The aim was to correlate the developmental degree of such structures with the behavior complexity. The results show that the female specimens of both species have the corpora pedunculata with same relative size. However the area occupied by the neurones cellular bodies (glomeruli) is greater in the workers of A. mellifera. In other way in E. aureopilosa the total size of the corpora pedunculata is larger in females, but the glomeruli area is relatively larger in the male.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hymenoptera; Apoidea; Corpora pedunculata; Glomeruli; Castes; Behavior.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400016

Mielkeanthidium, gen.n. de Dianthidiini da América do Sul (Hymenoptera, Megachilidae)
Provedor de dados: 104
Autores: Urban,Danúncia.
Mielkeanthidium, gen.n. with long preepisternal carina on the mesepistemum is proposed for two species from Southern Brazil: Mielkeanthidium nigripes, sp.n. and Mielkeanthidium rubripes, sp.n. The females are characterized by the absence of the arolia and of the subbasal tooth of the mandibles, the males by the two large carinated lobes on the apical teigum.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apoidea; Megachilidae; Anthidiinae; Mielkeanthidium; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100011

Estudo ecológico e zoogeográfico sobre a fauna de lagartos (Sauria) das dunas de Natal, Rio Grande do Norte e da Restinga de Ponta de Campina, Cabedelo, Paraíba, Brasil
Provedor de dados: 104
Autores: Freire,Eliza Maria Xavier.
An inventory of the fauna of lizards was made in the dunes of Natal (Rio Grande do Norte, Brazil) and in the "restingas" (sandbanks with its associated vegetation) of Ponta de Campina (Cabedelo, Paraíba, Brazil) from October/84 to March/86. The objective was to know the composition and structure of these communities as well as to evaluate the zoogeographical importance of the spots. The samples were collected and the observations were made along of transects which were established to enable the sampling of the habitats under study in both areas. Each transect was crossed one day per month, during 14 months. The collect of lizards was made manually or through the use of a small gun, calibre 22, with ammunition of the type mustard lead. Observations were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sauria; Lizards; Ecology; Restinga; Brazil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400012

Nematode parasites of Brazilian pelecaniformes and trogoniformes birds: a general survey with new records for the species
Provedor de dados: 104
Autores: Vicente,J. Júlio; Pinto,R. Magalhães; Noronha,Dely; Carvalho,Patrícia Goulart de.
This report deals with the identification of one hundred and seventy-one samples of nematodes recovered from Brazilian birds collected by Lauro Travassos and his staff, between 1921-1960. Aprocta travassossi Caballero, 1938, Aprocta sp., Baruscapillaria appendiculata (Freitas, 1933) Moravec, 1982, Contracaecum plagiaticium Lent &amp;amp; Freitas, 1948, C. spiculigerum (Rudolphi, 1809) Railliet &amp;amp; Henry, 1912, Contracaecum sp., Cyrnea (C.) semilunaris (Molin, 1860) Seurat, 1914, Oxyspirura sp., Paronchocerca ibanezi (Freitas, Vicente &amp;amp; Pinto, 1970) Anderson &amp;. Bain, 1976, Porrocaecum sp., Procyrnea sp., Skrjabinura spiralis Gnédina, 1933, Subulura acutissima Molin, 1860, S. bentocruzi Barreto, 1919, S. travassossi Barreto, 1919, Subulura...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nematodes; Pelecaniformes; Trogoniformes; Birds; Brazil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400011

Four new species of Eriophyoid mites from Brazil (Acarina, Eriophyoidea)
Provedor de dados: 104
Autores: Flechtmann,Carlos H.W.
Tegonotus tricarinatus n.sp., Floracarus claviger n.sp., Cosella callipodex n.sp. and Aculus verrucosus n.sp., Acarina, Eriophyoidea, from Brazil are described and figured.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eriophyoidea; Tegonotus; Floracarus; Cosella; Aculus; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100010

On the males of Wagneriana roraima Levi and W. yacuma Levi (Araneae, Araneidae)
Provedor de dados: 104
Autores: Buckup,Erica Helena; Pinto-da-Rocha,Ricardo.
The males of Wagneriana roraima Levi, 1991 and W. yacuma Levi, 1991 are described and illustrated for the first time.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Araneae; Araneidae; Wagneriana; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400006

As espécies de Epelaspis Townes (Ichneumonidae, Hymenoptera) da região Sul do Brasil
Provedor de dados: 104
Autores: Graf,Vinalto; Kumagai,Alice Fumi.
Epelaspis renatoi sp.n. and E. ketiae sp.n. (Phygadeuontinae, Hemitelini) from Jundiaí do Sul, Fênix, Telêmaco Borba, Ponta Grossa, Colombo, Curitiba, São José dos Pinhais, Morretes (Paraná), Tenente Portela and Quaraí (Rio Grande do Sul) are described.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hymenoptera; Ichneumonidae; Epelaspis; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300025

Post-embrionic development of the digestive tube of Dermatobia hominis (Linnaeus) (Diptera, Cuterebridae)
Provedor de dados: 104
Autores: Vieira,Ana Maria; Lello,Edy de.
The digestive tube of 2nd and 3rd instar larvae, pupae and newly emerged adults of Dermatobia hominis (Linnaeus, 1781) was studied anatomically. The specimens were dissected in buffer saline under a stereomicroscope, and the digestive tubes were placed on slides and fixed in 10% buffered formalin. Each tube was measured using a micrometric eye piece, and drawings were made with camera lucida. The results showed that the midgut, the hindgut and the Malpighian tubules with their ducts grow gradually during the larval development. The oesophagus and the salivary glands with their ducts grow only during the moult from the 2nd to the 3rd instar. In the pupal period, salivary glands grow gradually but disappeared after the 20th day. After metamorphosis the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dermatobia hominis; Digestive tube; Anatomy; Post-embrionic development.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400024

Análise morfológica das formas imaturas de Sarconesia chlorogaster (Wiedemann) (Diptera, Calliphoridae, Toxotarsinae)
Provedor de dados: 104
Autores: Bonatto,Sionei Ricardo; Carvalho,Cláudio José Barros de.
Morphological characteristics of the immature of Sarconesia chlorogaster (Wiedemann, 1830) were obtained rearing it on an artificial diet in a temperature controlled chamber set at 27±1ºC, 70±10% RH and 12 hours photophase. The egg, three larval instars and puparium were described and illustrated together with the lairval cephalopharyngeal skeleton. Some characters were studied, for the first time using the scanning electron microscopy.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diptera; Calliphoridae; Sarconesia chlorogaster; Morphology; Immature stages.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300019

Revisão do gênero Potnia Stål (Homoptera, Membracidae, Membracinae, Hoplophorionini)
Provedor de dados: 104
Autores: Creão-Duarte,Antônio J; Sakakibara,Albino M.
Fifteen species of Potnia Stål, 1866 are presented with descriptions, illustrations and a key for identification. The following nomenclatural changes are introduced: P. knightae sp.n. (from Guiana), P. miracyae sp.n. (from Costa Rica), P. diringshofeni sp.n. (from Brasil), P. webbi sp.n. (from Brazil), P. turrialbensis sp.n. (from Costa Rica), P. pinheiroi sp.n. (from Brazil), P. tapuruquarensis sp.n. (from Brasil), P. cornigera sp.n. (from Brazil) and P. inca sp.n. (from Peru). Potnia venosa (Germar, 1821) = Aconophora nigrivittata Walker, 1851, syn.n. = Potnia perobtusa Fowler, 1894, syn.n.. Potnia brevicornis Fowler, 1894, sp. reval. = Potnia brunneifrontis Funkhouser, 1943, syn.n. = Potnia maculata Funkhouser, 1943, syn.n.. Potnia jacula (Fabricius,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Homoptera; Membracidae; Hoplophorionini; Potnia; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400020

Eugeniamyia dispar gen.n. and sp.n. (Diptera, Cecidomyiidae, Lasiopteridi) associated with Eugenia uniflora l. (Myrtaceae) in Brazil
Provedor de dados: 104
Autores: Maia,Valéria Cid; Mendonça Júnior,Milton de S; Romanowski,Helena P.
A new genus and species Eugeniamyia dispar (Diptera, Cecidomyiidae, Lasiopteridi) that cause leaf galls on Eugenia uniflora L. (Myrtaceae) in Brazil, is described.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diptera; Cecidomyiidae; Eugeniamyia dispar; Myrtaceae; Eugenia uniflora; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400026

Revisão do gênero Umbonia Burmeister (Homoptera, Membracidae, Membracinae, Hoplophorionini)
Provedor de dados: 104
Autores: Creão-Duarte,Antônio J; Sakakibara,Albino M.
Fourteen species of Umbonia are presented with descriptions, illustrations, and a key for Identification. The following nomenclatural changes are introduced: Umbonia articularia Buckton, 1901, sp. reval.; Umbonia pyramidalis Fairmaire, 1846, sp. reval.; Umbonia lativitta Walker, 1851, sp. reval. = U. erecta Goding, 1920, syn.n.; Umbonia crassicornis (Amyot &amp;amp; Serville, 1843) = U. ermanni Griffini, 1895, syn.n. = U octolineata Goding, 1930, syn.n.; Umbonia spinosa (Fabricius, 1775) = U. reducta Walker, 1851, syn.n. = U. terribilis Walker, 1858, syn.n. = U. rectispina Stål, 1869, syn.n. = U. immaculata Funkhouser, 1943, syn.n.. Umbonia struempeli sp.n. (from Brazil); Umbonia formosa sp.n. (from Bolivia) and Umbonia richteri sp.n. (from Colombia).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Homoptera; Hoplophorionini; Membracidae; Umbonia; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400018

Intraseasonal variation in a population of Fountainea ryphea (Cramer) (Lepidoptera, Nymphalidae)
Provedor de dados: 104
Autores: Caldas,Astrid.
A different approach was used for the key-factor method in a population study of the tropical butterfly Fountainea ryphea (Cramer, [1776]) (Lepidoptera, Nymphalidae), marking 20 artificial cohorts to identify the mortality levels and associated instars responsible for the variation in numbers within the season of occurrence, when generations overlap broadly. Highest mortality was detected during first instar in 13 cohorts; during second instar in three cohorts; third and fourth instars suffered highest mortality twice. Results showed that first instar mortality due to rainfall and predation, and parasitism on fourth instar could be the main factors promoting differences in number between cohorts throughout the season, although no density-dependent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bracon; K-factor; Parasitism; Predation.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200009

Cordiamyia globosa gen.n. e sp.n. (Diptera, Cecidomyiidae, Cecidomyiidi) associado com Cordia Verbenacea DC. (Boraginaceae) no Brasil
Provedor de dados: 104
Autores: Maia,Valéria Cid.
Cordiamyia globosa gen.n., sp.n. (Diptera, Cecidomyiidae, Cecidomyiidi) associated with Cordia verbenacea (Boraginaceae), in Brazil, is described and illustrated (larva, pupa, male, female and gall).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diptera; Cecidomyiidae; Cordia verbenacea; Boraginaceae; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300006

Homonymy note in muscidae (Diptera)
Provedor de dados: 104
Autores: Couri,Márcia Souto; Carvalho,Claudio José Barros de.
The following new name is proposed for Hypsomyia Couri &amp;amp; Carvalho (Diptera, Coenosiinae, Limnophorini): Albertinella n.nov..
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Muscidae; Albertinella n.nov.; Homonymy; Hypsomyia.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400027

Duas novas espécies de Fannia Robineau-Desvoidy (Diptera, Fanniidae) do Rio de Janeiro, Brasil
Provedor de dados: 104
Autores: Araújo,Paulo Francisco de; Couri,Márcia Souto.
Fannia parafemoralis, sp.n. and F. paraisensis, sp.n. from Rio de Janeiro, are described. Both species belong to the cannicularis group.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diptera; Fanniidae; Fannia paraisensis; Fannia parafemoralis; New species; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200005

Características do adulto, genitália e formas imaturas de Gonipterus gibberus Boisduval e G. scutellatus Gyllenhal (Coleoptera, Curculionidae)
Provedor de dados: 104
Autores: Rosado-Neto,Germano H; Marques,Marinêz Isaac.
Adults and immature forms of G. gibberus Boisduval, 1835 and G. scutellatus Gyllenhal, 1833 are redescribed briefly. A morphologic study of male and female genitalia with illustrations and keys for the identification of these species are included. The records on the female genitalia are presented for the first time.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coleoptera; Curculionidae; Gonipterus; Genitalia; Immature forms.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100007

Descrição de cinco espécies novas de Bahita Oman (Homoptera, Cicadellidae, Deltocephalinae)
Provedor de dados: 104
Autores: Zanol,Keti Maria Rocha.
Five new species of Bahita Oman, 1936, from Brazil, are described: Bahita fenica, B. anlonina, B. aguasina, B. variabilis and B. joseana.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Homoptera; Cicadellidae; Deltocephalinae; Bahita.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300020

Morcegos do Parque Estadual da Serra da Tiririca, Rio de Janeiro, Brasil (Mammalia, Chiroptera)
Provedor de dados: 104
Autores: Teixeira,Sylvia Ceppas; Peracchi,Adriano L.
A preliminary survey of bats species from the Serra da Tiririca State Park is presented. Two hundred and seventy two bats of 20 species were collected. Comments about reproduction and feeding habits of the captured species are included.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chiroptera; Bats; Reproduction; Feeding habits.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100005

Rediscovery of Tetranychus abacae Baker &amp;amp; Pritchard, additional description and notes on South American spider mites (Acari, Prostigmata, Tetranychidae)
Provedor de dados: 104
Autores: Flechtmann,Carlos H.W.
The rediscovery of Tetranychus abacae Baker &amp;amp; Pritchard, 1962 is reported and additional description and drawings presented. New host and distribution records for 19 species of spider mites (Tctranychidae) in South America are given.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Spider mites; Tctranychidae; Agriculture; Distribution; Host plants.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300005

Relação preliminar das espécies de peixes (Pisces, Elasmobranchii, Actinopterygii) ameaçadas no Brasil
Provedor de dados: 104
Autores: Rosa,Ricardo S; Menezes,Naércio A.
The Brazilian fish fauna is still poorly known with respect to its diversity and conservation status, particularly of freshwater species. Human activities and population growth are rapidly impacting this fauna to an unchecked extent, so that many fish species are presently threatened. Also, some areas have been so critically altered that their fish fauna can no longer be properly inventoried. There is an urgent need to evaluate the conservation status of Brazilian fish species, since none are presently listed as endangered by federal legislation. Based on a literature search and a survey directed to the Neotropical ichthyologists, we present an unofficial list including a total of 78 threatened fish species (12 elasmobranchs and 66 actinopterygians). Of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pisces; Elasmobranchii; Actinopterygii; Endangered species; Conservation; Brazil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300015

Homonymy within Frequenamia DeLong , (Homoptera, Cicadellidae, Deltocephalinae)
Provedor de dados: 104
Autores: Zanol,Keti Maria Rocha.
Frequenamia delongi nom.n., is proposed for Frequenamia alrala DeLong, 1982, preoccupied by Frequenamia atrata Linnavuori &amp;amp; DeLong, 1978.
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Homoptera; Cicadellidae; Deltocephalinae; Frequenamia; Homonymy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300030

Mnesarete mariana nova espécie de libélula da Chapada Diamantina, Bahia, Brasil (Odonata, Calopterygidae)
Provedor de dados: 104
Autores: Machado,Ângelo B.M.
Mnesarete mariana sp.n. is described based on three male specimens collecled at Chapada Diamantina, in the Bahia State, Brazil. The new species is close to M. guttifera (Selys, 1873) but differs from it mainly by structure of the inferior anal appendages and by the presence of a tuft of hairs on each side of the hind part of the anterior lamina adjacent to the anterior hamuli. The appendages of M. guttifera are now illustrated for the first time.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Odonata; Calopterygidae; New species; Chapada Diamantina.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300011

Aspectos da alimentação de Genidens genidens (Valenciennes) (Siluriformes, Ariidae) na Baía de Guaratuba, Paraná
Provedor de dados: 104
Autores: Chaves,Paulo de Tarso da Cunha; Vendei,Ana Lúcia.
Seasonal variation of the food items of the "bagre-urutu", Genidens genidens is analysed based on monthly samples between September, 1993 and April, 1995 at the Guaratuba Bay, coast of Paraná. The stomach contents of 105 fish is analysed by the Occurrence Frequency Method and 41 of these have also been analysed by the Volumetric Method. Matching both methods using the Preponderance índices, a larger incidence of decapods is determined, followed by other crustaceans, molluscs, polychaets, fish, and plant material. The data show the existence of a strong seasonal variation in the diet.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Guaratuba Bay; Estuary; Ariidae; Seasonal Variation; Diet.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300016

Calliphoridae (Diptera) da bacia do alto rio Urucu, Amazônia Central, Brasil
Provedor de dados: 104
Autores: Paraluppi,Norival D.
Calliphoridae of the region of the upper Urucu river basin, West of the city of Manaus, Amazonas State, Brazil, were sludied considering composition and abundance of the species, capturing 14729 specimen distributcd as follows: Cochliomyia macellaria (Fabricius) (12643), Chloroprocta idioidea (Robineau-Desvoidy) (1667), Phaenicia eximia (Wiedemann) (354), Hemilucilia semidiaphana (Rondani) (54), H. segmentaria (Fabricius) (6), Chrysomya pularia (Wiedemann) (1) e C. albiceps (Wiedemann) (1). The rcsults showthat Cochliomyia macellaria has a facility to adapt rapidly to an environment changed by man. The fact that was registered two specimen of Chrysomya Robineau-Desvoidy in highly isolated localilies contributed to showthc ability of thesc flics in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calliphoridae; Central Amazônia; Invader species; Species composition.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300003

Description of three cave diplopods of Pseudonannolene Silvestri (Diplopoda, Pseudonannolenida, Pseudonannolenidae)
Provedor de dados: 104
Autores: Fontanetti,Carmem Silvia.
Three new species of Pseudonannolene Silvestri, 1895 diplopods are described: P. anapophysis (type locality, "Caverna Lapão", Bahia), P. imbirensis (type locality, "Caverna São Mateus", Imbira III, Goiás), and P. chaimowiczi (Minas Gerais, Bahia)
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diplopoda; Pseudonannolene; Millipedes; Cave fauna; Neotropics.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200013

Identificação dos insetos infestantes de alimentos através da micromorfologia de seus fragmentos
Provedor de dados: 104
Autores: Vargas,Carlos Henrry Bellot; Almeida,Armando Antunes de.
The identification of insect fragments showed that the infestation was done, mainly, by Coleoptera of the genus Sitophilus Sch›nherr, 1838 (Curculionidae) and Rhizoperthadominica (Fabricius, 1792) (Bostrychidae), that are caracteristic of internai infestation, and in lesser percentage by insects charac-teristic of externai infestation, as Crylolestes spp. (Cucujidae), Tribolium spp. (Tene-brionidae), Oryzaephilussurinamensis(Linnacus, 1758) (Cucujidae) and Lasioderma serricorne (Fabricius, 1792) (Anobiidae). From the total of recovered and identified insect fragments, 59% were fragments of elytra, 23% of mandibles, and in minor percentage by tarsal segments, claws, tibial spurs, legs, tarsus, eyes, antennae, exuviae and larvae urogomphi.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insect fragments; Food; Identification; Micromorphology.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300021

Body masses and measurements of birds from southern Atlantic Forest, Brazil
Provedor de dados: 104
Autores: Reinert,Bianca L; Pinto,Júlio C; Bornschein,Marcos R; Pichorim,Mauro; Marini,Miguel Â.
Five hundred and eigh body masses of 74 forest birds, and measurements of wing, tail, tarsus and beak of 14 poorly known species mist-netted at two sites in the Atlantic Forest of eastern Paraná State, southern Brazil, are presented.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Birds; Body masses; Measurements; Atlantic Forest.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400001

Ecologia de mosquitos (Diptera, Culicidae) em criadouros naturais e artificiais de área rural do norte do Parana, Brasil: II. Coletas com isca humana
Provedor de dados: 104
Autores: Lopes,José; Lozovei,Ana L.
With then purpose of knowing the species of mosquitos that colonize an anthropogenic area in the North of Paraná, Brazil. 1496 specimens were captured by the humam bait method, accountig 23 species among them the following were predominam: Anopheles strodei Root, 1926; An. evansae Brethes, 1926; An. galvaoi Causey, Deane &amp;amp; Deane, 1943; An. albitarsis Lynch Arribalzaga, 1878; Coquillettidea juxtamansonia Chagas, 1907; Co. venezuelensis Theobaldi, 1912; Culex (Melanoconion) sp. e Aedes fluviatilis (Lutz, 1904) and showed shong anthopophilia and a high degree of adaptation to humam environment. On the cantray, the species that showed lilth adaptation to such ambients or to the geoclimatic conditions of the region were: Anopheles triannulatus (Neiva...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Culicidae; Ecology; Human bait; Behaviour feeding; Population fluctuation.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300007

Redescrição de Phaonia californiensis (Malloch) comb.n. e Phaonia houghii (Stein) (Diptera, Muscidae) da região Neártica
Provedor de dados: 104
Autores: Coelho,Sônia Maria Prevedello.
Bigotomyia californiensis Malloch, 1923 and B. houghii (Stein, 1898) are transferred to Phaonia, redescribed and illustrated. A lectotype is designated for the former.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Muscidae; Phaonia houghii; Phaonia californiensis; Redescriptions; Lectotype designation.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300012

Revisão de Anyphaeninae Bertkau a nível de gêneros na Região Neotropical (Araneae, Anyphaenidae)
Provedor de dados: 104
Autores: Brescovit,Antonio Domingos.
The subfamily Anyphaeninae is revised at genera level in the Neotropical region. Anyphaeninae is diagnosed by the tracheal spiracle approximately in the midway of venter or between the midway of venter and the epigastric groove; retromargin of chelicerae with more than four denticles; and male palp with tegulum basket-like or cup-like, without the basal lightly sclerotized area. The subfamily contais 32 genera, 14 of which are new: Aljassa (type species Teudis annulipes Caporiacco), Buckupiella (type species B. imperatriz sp.n., from Brazil and Argentina), Hatitia (type species H.yhuaia sp.n., from Peru) Iguarima (type species Anyphaena censoria Keyserling), Ilocomba (type species I. marta sp.n., from Colombia), Italaman (type species I. santamarina sp.n.,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Araneae; Anyphaenidae; Anyphaeninae; Taxonomy; Neotropical.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000500001

Aspectos bioecológicos de Arenaeus cribrarius (Lamarck) (Decapoda, Portunidae) da Praia da Barra da Lagoa, Florianópolis, Santa Catarina, Brasil
Provedor de dados: 104
Autores: Avila,Marcelo Gentil; Branco,Joaquim Olinto.
The specimens of Arenaeus cribrarius (Lamarck, 1818) used in this study were collected in the locality of Barra da Lagoa beach, Florianópolis, Santa Catarina, Brazil, in the period of April/1991 to March/1992. In this area temperature and salinity values were observed. A total of 341 samples, that 184 were male and 157 were female were collectted. The maturacion sexual stadium were measured (cm) and weightied (g). Expression of relation among weight of body (wt) and width of carapace (wid) was Wt=0,0567 Wid3,0494 on males and wt=0,074 Wid2,8795 on females. The relation length (Lt) width (wid) of carapace was Lt=0,4322. wid on males and Lt=0,4578. wid on females.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Portunidae; Arenaeus cribrarius; Length; Width; Weigth.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100017

Pollination of Habenaria pleiophylla Hoehne &amp;amp; Schlechter (Orchidaceae) by Heliconius erato phyllis Fabricius (Lepidoptera, Nymphalidae)
Provedor de dados: 104
Autores: Moreira,Gilson R.P; Correa,Claudine A; Mugrabi-Oliveira,Elna.
For the first time the pollination of a poorly known, terrestrial orchid, Habenaria pleiophylla Hoehne &amp;amp; Schlechter, 1921 (Orchidaceae) by a passion vine butterfly, Heliconius erato phyllis (Fabricius, 1775) (Lepidoptera, Nymphalidae) is reported. Number of pollinia-carrying individuals was determined on a population of H. erato phyllis in Horto Florestal Barba Negra, Barra do Ribeiro County, Rio Grande do Sul State. The pollination mechanism was described under laboratory conditions, in association with the butterfly feeding habit and the orchid flower morphology. Habenaria pleiophylla pollinia are cemented during nectar feeding on the ventral portion of the compound eyes near H. erato phyllis proboscis base. The pollinia are transferred to the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nymphalidae; Heliconius; Orchidaceae; Habenaria; Pollination.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300027

Espécies de Thelaziinae (Skrjabin) Baylis &amp;amp; Daubney (Nematoda, Thelazioidea) referidas para o Brasil
Provedor de dados: 104
Autores: Rodrigues,Henrique de Oliveira.
Twenty three species of Thelaziinae Skrjabin, 1915 were referred in Brazil. Hempelia hempeli Vaz, 1936, Thelazia anolabiata (Molin, 1860), T. aquilina Baylis, 1934, T. campanulata (Molin, 1858), T. iheringi Travassos, 1918 and T. travassosfreitasi Cristofaro &amp;amp; Rodrigues, 1979. That included in the Oswaldo Cruz Helminthological Collection were reviewed. Dryocopus lineatus lineatus (Linnaeus), Pipile cumanensis nattereri Reich and Ramphastus dicolorus Linnaeus are new host records for Thelazia anolabiata (Molin, 1860) and Rostrhamus sociabilis (Vieill.) is a new host record for Thelazia campanulata (Molin, 1858).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nematoda; Thelaziinae; Hempelia; Thelazia; Ceratospira; Brazil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200006

Aspectos da biologia da reprodução e longevidade de Cochliomyia macellaria (Fabricius) (Diptera, Calliphoridae), em condições experimentais. I. casais agrupados
Provedor de dados: 104
Autores: Cunha-e-Silva,Sandra Lucia; Milward-de-Azevedo,Eliane M.V.
In the present study we estimed the longevity and reproductive potential of Cochliomyia macellaria (Fabricius, 1775), in different densities of grouped pairs, as a function of time of collection. The study was divided into two phases and conducted in an incubator regulated at 27oC, 65±10% RH and 14 hours photoperiod. Forty and 20 pairs/replication were used, corresponding to the third and fourth generation originating from a laboratory colony. Egg masses were collected at 8:00 and 17:00 hours daily. The results obtained were influenced by the variables established. The ovipositing peak occurred 20 days after the emergence of females belonging to the third generation. This peak occurred earlier in fourth generation females, i.e., 11 days after imago...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cochliomyia macellaria; Bowlfy; Rearing methods; Reprodutive behavior; Secondary screwworm.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400010

Caracterização dos tipos celulares presentes na hemolinfa de larvas e ninfas de Rhipicephalus sanguineus (Latreille) (Ixodoidea, Ixodidae) em diferentes estados nutricionais
Provedor de dados: 104
Autores: Carneiro,Maria Elisa; Daemon,Erik.
With the purpose of characterize morphologically the hemocytes of larvae and nymphs of Rhipicephalus sanguineus on different nutritional phases, it was obtained samples of haemolymph were obtained by sectioning the forelegs and collecting the drop there formed. After dried, the samples were fixed by methanol and stained by Giemsa. Microscopical observation resulted in the characterization of five basic cellular types: prohemocytes, plasmatocytes, granulocytes, spherulocytes and oenocytoids. Moreover, undefined cell types, whose morphological patterns didn't have correlation with the characteristics cited for hemocytes, were found in low frequency. The change in the relative composition of the haemolimph was characterized by decrease of the number of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ixodid; Rhipicephalus sanguineus; Hemocytes; Morphology.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300010

Haematological characteristics of freshwater-reared and wild mullet, Mugil platanus Günther (Osteichthyes, Mugilidae)
Provedor de dados: 104
Autores: Ranzani-Paiva,Maria José T; Ishikawa,Carlos M.
Mullets, Mugilplalanus Günther, 1880. were obtained from the estua-rine area of CananÉia (São Paulo, Brazil) and from freshwater tearing tanks. For each fish the body weight, body length, gonad weight and gonad maturation stage were recorded and the allometric index (K) was calculated. Blood was collected for hematocrit (Ht), hemoglobin level (lib), total cell count (Er), and the determination of hematological indices (MCV. MCH, MCHC), as well as the differential leukocyte count (lymphocytes, monocytes, neutrophils, basophils and '"other cells"). The averages of the hematological analyses, hematological indeces, condition factor and leukocytes percentage of the specimens acclimated to fresh water were significantly higher than those of the specimens from...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mugil plalanus; Haematology; Mullet; Freshwater rearing.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300004

Estimulação da espermiação em curimbatá Prochilodus scrofa (Steindachner) através de aplicaçoes de HCG (Ostheichthyes, Characiformes, Prochilodontidae)
Provedor de dados: 104
Autores: Kavamoto,Emico T; Ferraz,Eduardo de M; Talmelli,Elaine F. de Andrade; Mainardes-Pinto,Cleide S.R; Romagosa,Elizabeth; Narahara,Massuka Y; Barnabe,Valquiria H; Campos,Benedicto do E.S. de.
Sperm of 180 three year old males of curimbatá, Prochilodus scrofa (Steindachner, 1881), was collected to verify the possibility of utilization of these males more than one time, and to know how long after the hormonal induction would occur the highest production of milt. This experiment was carried out in 1991 and 1992. After sperm was collected, each male was stimulated by the first injection of five IU/g of hCG. Then, milt was collected at 8, 16, 24, 48, 72 and 96 hours before and after the first dose and at 16 hours before and after the second one. Mean volume values were, before hormonal injection, 0.22ml and after two doses of hCG, 106ml. Maximal production occurred between 16 and 24 hours after induction. Mean values of sperm concentration and total...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prochilodus scrofa; Curimbatá; Spermiation; Hormonal induction.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100002

Comportamento alimentar e dieta da "falsa-coral" Oxyrhopus guibei Hoge &amp;amp; Romano (Serpentes, Colubridae)
Provedor de dados: 104
Autores: Andrade,Rogério de Oliveira; Silvano,Renato A. Matias.
The feeding behavior and constriction pattern of adults and juveniles Oxyrhopus guibei Hoge &amp;amp; Romano, 1978 preying on rodents and lizards are described. An analysis of stomach contents of snakes preserved in collections was made to study its diet. The results indicate that this snake constricts prey with right to left side movements, horizontal position and with the dorsal portion of its body. Rodents were constricted by adult snakes whereas lizard were swallowed alive. The diet is composed of lizards and rodents, with an ontogenetic shift from lizards to rodents.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Serpentes; Colubridae; Oxyrhopus guibei; Feeding behavior.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100014

Descrições e notas sobre Cerambycidae (Coleoptera) Sul-americanos
Provedor de dados: 104
Autores: Martins,Ubirajara R.; Galileo,Maria Helena M.
New taxa described: Cerambycinae, Achrysonini-Ectenessa andrei, sp.n. (Brazil: Rio Grande do Sul); Lamiinae, Lamiini - Neoptychodes cosmeticus, sp.n. (Equador); Onciderini - Charoides pepoata, sp.n. (Bolívia); Venustus analogus, sp.n. (Colombia); Oncideres mirim, sp.n. (Brazil: Pará); Compsosomatini - Compsosoma monnei, sp.n. (Bolivia); Desmiphorini - Desmiphora auatinga, sp.n. (Ecuador); Iurubanga, gen.n., I. arixi, sp.n. (Brazil: Paraná, Santa Catarina); Acanthoderini -Acakyra, gen.n., A. iaguara, sp.n. (Colombia); Anisocerini - Phacellocera susua, sp.n. (Equador); Falsamblesthiini - Camixaima, gen.n., C. beraba, sp.n. (Equador); Calliini - Callisema iucaua, sp.n. (Peru); Lustrocomus, gen.n., L. paraensis, sp.n. (Brazil: Pará). Fredlanella, nom.n. is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerambycidae; Coleoptera; Neotropical; South America; Taxonomy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200001

Ancylidae (Gastropoda, Basommatophora) na América do Sul: sistemática e distribuição
Provedor de dados: 104
Autores: Lanzer,Rosane.
The family Ancylidae is represented in South America by the genera: Gundlachia Pfeiffer, 1849, Ferrissia Walker, 1903, Burnupia Walker, 1912 and Laevapex Walker, 1903. The species are caracterized using the combination of shell features and radula by scanning electron microscope, shell muscle and mantle pigmentation. The conchometry is also presented, but it does not help to species identification. The distribution of G. crequi (Bavay, 1904), G. foncki (Philippi, 1866), G. philippiana (Biese, 1948), G. obliqua (Broderip &amp;amp; Sowerby, 1832), G. moricandi (Orbigny, 1837), G. concentrica (Orbigny, 1835), G. radiata (Guilding, 1828), G bakeri Pilsbry, 1913, G ticaga (Marcus &amp;amp; Marcus, 1962), F. gentilis Lanzer, 1991, B. ingae Lanzer, 1991, L. vazi...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ancylidae; Systematic; Distribution; South America.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100018

Description of the male of Daguerreia inermis Soares &amp;amp; Soares, with biological notes on population size in the Gruta da Lancinha, Paraná, Brazil (Arachnida, Opiliones, Gonyleptidae)
Provedor de dados: 104
Autores: Pinto-da-Rocha,Ricardo.
The male of Daguerreia inermis Soares &amp;amp; Soares, 1947, a troglophilic harvestman, is described. Distribution records are given for caves of the Speleological Province of Vale do Ribeira and two non carbonatic areas (Telêmaco Borba and Arapoti, Paraná), in southeastern Brazil. The population of the Gruta da Lancinha (Paraná, Brazil) was studied from October 1988 to February 1989. The population size was estimated, by Fisher Ford's method, between 158-610 individuals. The sex ratio observed was 1:1.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arachnida; Opiliones; Daguerreia inermis; Cave fauna; Population size.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400004

Size of and damage on shoots of Passiflora suberosa (Passifloraceae) influence oviposition site selection of Heliconius erato phyllis (Fabricius) (Lepidoptera, Nymphalidae)
Provedor de dados: 104
Autores: Mugrabi-Oliveira,Elna; Moreira,Gilson R.P.
Oviposition site selection of Heliconius erato phyllis (Fabricius, 1775) (Lepidoptera, Nymphalidae) was studied when size of and damage on shoots were variable in a natural population of Passiflora suberosa Linnaeus (Passifloraceae), and through sequential and simultaneous choice experiments performed under insectary conditions. Females showed marked oviposition preference for undamaged and largest shoots of P. suberosa. Eggs were mostly laid on the terminal buds of intact shoots under natural conditions. In simultaneous choice trials, females preferred to oviposit on shoots from which leaves (ten) were removed but the terminal bud maintained to those where leaves were kept but the terminal bud was cut out. In sequential choice trials, they did not lay...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lepidoptera; Heliconius; Passiflora; Oviposition behavior; Host plant selection.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400015

Observações preliminares sobre a frugivoria por aves em Alchornea glandulosa (Endl. &amp;amp; Poepp.) (Euphorbiaceae) em vegetação secundária
Provedor de dados: 104
Autores: Zimmermann,Carlos Eduardo.
An individual of Alchornea glandulos a (Endl. &amp;amp; Poepp.) was observed in Blumenau (26º55'26", S49º03'22"W), Santa Catarina State on the border of secondary Atlantic Rain Forest from september to november belween 1990 and 1991, with the goal of identifying species of birds with potential to spread out its seeds. In twelve hours of observation 21 species of birds explorcd the seeds.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Birds; Sed; Dispersai; Ecology.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300001

Formas de abertura dos frutos de Syagrus romanzoffiana (Chamisso) glassman efetuadas por Sciurus ingrami Thomas (Rodentia, Sciuridae)
Provedor de dados: 104
Autores: Bordignon,Marcelo; Margarido,Teresa Cristina C; Lange,Rogério R.
In this work was identifyed the diferents opening forms of the palm nuts Syagrus romanzoffiana by brazilian squirrel Sciurus ingrami in four diferents points of Curitiba, Paraná, Brazil. Was caracterized tive basic forms of opening, in acording with the number of incisions and opening aspects. The form with lower number of incisions (two) was also the greather frequently in the four points sampled (66,25%; N = 5194) well as registred the lower opening time (7,2 ± 1,7 min) in relationship with other forms (9,2 ± 2,3 min). To explicate the diferences in the frequences of forms discovered, is proposed "apprenticeship's hypothesis" which the young squirrels of the population, along the opening nuts apprenticeship, to passing of the forms with larger number of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rodentia; Sciuridae; Seed predation; Squirrel behavior; Palm nuts.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000400002

Crescimento e reprodução de Hyale media Dana (Amphipoda, Gammaridae, Hyalidae) associada à Sargassum cymosum C. Agardh
Provedor de dados: 104
Autores: Leite,Fosca Pedini Pereira.
The post-marsupial growth, sexual differentiation, fecundity and reproductive biology of Hyale media Dana, 1853 living on Sargassum cymosum C. Agardh, 1820 are described. The growth was continuous througth 12 stages for males and 9 for females. The sexual differentiation occours at 2th or 3th moult and was demonstrated by the enlargment of the gnatopod II propod. Number of eggs increased with the female head length. Observations of courtship behavior, incubation, moult processes, emergence of juveniles and brood caracteristics were made. The precopula courtship continued for two days, the eggs were incubated for six days and the juveniles, that stay until three days in the marsupium, moult every day.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amphipods; Reproduction; Growth; Fecundity; Sargassum.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000300008

Desenvolvimento de Podisus nigrispinus (Dallas) (Heteroptera, Pentatomidae) com Zophobas confusa Gebien (Coleoptera, Tenebrionidae) comparado à duas outras presas alternativas
Provedor de dados: 104
Autores: Zanuncio,Teresinha V; Zanuncio,José C; Saavedra,Jorge L.D; Lopes,Emerson D.
Nymphs of Podisus nigrispinus (Dallas, 1851) were fed with Zophobas confusa Gebien, 1906, Tenebrio molitor Linnaeus, 1758 (Coleoptera, Tenebrionidae) and Musca domestica Linnaeus, 1758 (Diptera, Muscidae) under 25±0.5ºC, 60±10% of RH and photophase of 12h. Nymphal viability of P. nigrispinus were 64.0%, 80.0% and 92.0% with Z. confusa, M. domestica and T. molitor, respectively. No differences were found for pre-oviposition period, number of egg masses, number of eggs, egg viability, and longevity for females of this predator fed with any of these preys.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Asopinae; Alternative preys; Predatory bugs; Biological control.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000100016

Atividade alimentar de espécies de peixe do rio Tibagi, relacionada com o desenvolvimento de gordura e das gônadas
Provedor de dados: 104
Autores: Bennemann,Sirlei Terezinha; Orsi,Mário Luís; Shibatta,Oscar Akio.
The fish assemblage in a stretch of Tibagi river was studied during the period of one year, throught monthly sampling. It was observed that four fish species (Schizodon intermedius Garavello &amp;amp; Britski, 1990, Acestrorhynchus lacustris Reinhardt, 1874, Pimelodus maculatus Lacépède, 1803 and Steindachnerina insculpta Fernandez-Yepez, 1948) were very frequent and they represent all the main trophic groups. In order to characterize feeding activity, fat storage and reproduction the means degree of repletion, fat and maturation, obtained for each species in each month were compared among the four fish species. Steindachnerina insculpta, a detritivovous species was the one with the highest feeding activity while A. lacustris, a piscivorous fish, showed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fish; Feeding activity; Gonadal development; Tibagi river; Paraná.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751996000200018

TABELA DE COMPOSIÇÃO DE ALIMENTOS DA AMAZÔNIA
Provedor de dados: 36
Autores: AGUIAR,Jaime Paiva Lopes.
Foram analisadas amostras de frutas, raízes, tubérculos, hortaliças, peixes, carnes de animais silvestres e ovos adquiridos nas feiras e mercados das cidades de Manaus, Borba, Novo Airão e Tefé, no Amazonas, com objetivo de elaborar uma tabela de composição centesimal dos alimentos da Amazônia. Esta tabela permite aos profissionais da área realizar balanços macro nutritivos para avaliar o consumo alimentar, bem como desenvolver pesquisas sobre a relação dieta e doença. Adicionalmente, dará apoio a indústria de alimentos, adaptada a nossa realidade.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Alimentos da Amazônia; Composição centesimal; Frutos; Hortaliças; Peixes; Animais silvestres; Raízes e Tubérculos.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000200121

INVENTÁRIO TAXONÔMICO DOS ANOSTOMÍDEOS (PISCES, ANOSTOMIDAE) DA BACIA DO RIO UATUMÃ-AM, BRASIL, COM DESCRIÇÃO DE DUAS ESPÉCIES NOVAS.
Provedor de dados: 36
Autores: SANTOS,Geraldo M. dos; JEGU,Michel.
O presente estudo trata do inventário, descrição e ilustração das espécies de anostomídeos da bacia do rio Uatumã. Ele foi desenvolvido com base na coleção de peixes do INPA, montada a partir de um intenso programa de coletas, na bacia do Uatumã, nas áreas de influência das usinas hidrelétricas de Balbina e Pitinga, ambas no estado do Amazonas. Para a maioria das espécies são feitos comentários sobre os caracteres diagnósticos, área de distribuição, biótopos preferenciais e principais variações do padrão de colorido entre adultos e jovens. As vinte e duas espécies identificadas pertencem a 8 gêneros, sendo Leporinusdominante, com 12 espécies, seguido de Laemolyta, Anostomuse Pseudanos,com duas e de Schizodon, Anostomoides, Synaptolaemuse Gnathodolus,com...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ictiofauna; Amazônia; Anostomidae.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000300151

NOVAS OCORRÊNCIAS DE Leporinus pachycheilusBRITSKY, 1976 E DESCRIÇÃO DE UMA ESPÉCIE NOVA DO MESMO GRUPO NA AMAZÔNIA BRASILEIRA (OSTEICHTHYES, ANOSTOMIDAE).
Provedor de dados: 36
Autores: SANTOS,Geraldo M.; JÉGU,Michel; LIMA,Álvaro C.
A área de distribuição de Leporinus pachycheilusBritski, 1976 (Teleostei, Anostomidae), descrita do rio Aripuanã, é ampliada para os rios Jamari e Machado, ambos afluentes do Madeira, assim como para os rios Uatumã, Araguari e Tocantins. Esta espécie apresenta alta variabilídade intra e inter-populacional no padrão de colorido, mas a consistência dos caracteres morfológicos indica que se trata de um grupo bem definido e não distinto do material descrito para a localidade tipo (rio Aripuanã). Uma nova espécie (Leporinus juliisp.n.) é descrita para os rios Xingu e Trombetas. Esta é muito semelhante a L. pachycheilus,mas difere basicamente pelo maior número de escamas ao redor do pedúnculo caudal (16 contra 12) e pelo padrão de colorido, formado por manchas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Peixes; Anostomidae; Taxonomia; Amazônia.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000400265

BIOLOGIA DE ANOFELINOS AMAZÔNICOS. XXL OCORRRÊNCIA DE ESPÉCIES DE ANOPHELES E OUTROS CULICÍDEOS NA ÁREA DE INFLUÊNCIA DA HIDRELÉTRICA DE BALBINA - CINCO ANOS APÓS O ENCHIMENTO DO RESERVATÓRIO
Provedor de dados: 36
Autores: OSORIO QUINTERO,Lisardo; DUTARY THATCHER,Bedsy; TADEI,Wanderli Pedro.
Um inquérito entomològico foi realizado na área de influência da Hidrelétrica de Balbina, situada a 146 km de Manaus, Amazonas, para avaliar os possíveis efeitos sobre as populações de Anophelese de outros culicídeos. Cinco anos após a formação do lago, An. darlingi, An. nuneztovarie An. triannulatusforam as espécies encontradas com maior freqüência nas coletas realizadas em 1. Rodovia BR-174, 2. Acceso á Usina Hidrelétrica de Balbina e 3. Área Uatumã-Morena. Para cada espécie os índices mosquito/homem/hora foram respectivamente: Area 1 - 0,57; 12,85; 0,43. Área 2 - 0; 3,75; 0,18 e Área 3 - 0; 26,38; 0,34. Representantes das duas primeiras espécies se mostraram positivas para Plasmodiumcom testes imunoenzimáticos. A prevalência de mosquitos positivos foi...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malária; Anofelinos; Plasmodium; Hidrelétricas.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000400281

EFICIÊNCIA DE ISCAS GRANULADAS À BASE DE SULFLURAMIDA E DE CLORPIRIFÓS NO CONTROLE DE Atta sexdens sexdens(HYMENOPTERA: FORMICIDAE), NO TRÓPICO ÚMIDO.
Provedor de dados: 36
Autores: CRUZ,Adalton Pinheiro da; ZANUNCIO,José Cola; ZANETTI,Ronald; GOMES,Odilávio Sá.
Este trabalho foi realizado em plantios de eucalipto urograndis (Eucalyptus urophylla χ Eucalyptus grandis)da Jari Celulose S.A., no município de Almeirim, Pará, no período de agosto/94 a janeiro/95. Foi testada a eficiência de uma isca granulada com sulfluramida e de três outras com clorpirifós, em três dosagens cada por metro quadrado de formigueiro, no controle de Atta sexdens sexdens(Hymenoptera: Formicidae). Os resultados foram comparados com os de uma isca à base de dodecacloro (0,45%) a 10 gramas por metro quadrado de formigueiro. A isca granulada com sulfluramida a 6, 8 e 10 gramas por metro quadrado de formigueiro apresentou 77,78%, 100,00% e 88,90% de controle, respectivamente, assemelhando-se à isca a base de dodecacloro que apresentou 100,00%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atta sexdens sexdens; Formiga cortadeira; Iscas granuladas; Saúva-limão; Sulfluramida; Clorpirifós.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000300145

Ergasilus turucuyussp. n. (COPEPODA: ERGASILIDAE) DAS BRÂNQUIAS DE Acestrorhynchus falcatus(BLOCH, 1794) E A. falcirostris(CUVIER, 1819) (CHARACIFORMES: CHARACIDAE) DA AMAZÔNIA BRASILEIRA
Provedor de dados: 36
Autores: MALTA,José Celso O; VARELLA,Angela Μ. Β.
Ergasilus turucuyussp. n. (Copepoda, Poecilostomatoida, Ergasilidae) é proposta. Os espécimens foram coletados dos filamentos branquiais de Acestrorhynchus falcatuse A. falcirostrisdo Rio Pacaás Novos, Estado de Rondônia, Brasil. A nova espécie tem uma seta forte, pectinada e falciforme no primeiro exopodito, indicando uma relação com outras cinco espécies amazônicas. Esta espécie difere das outras na ornamentação das pernas, antenas, somitos abdominais e pela maior largura do cefalossomo.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Copepoda; Ergasilus turucuyus; Parasita de peixes; Amazônia.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000200069

DESCRIÇÃO DE DUAS ESPÉCIES NOVAS DE ElmohardyiaRAFAEL (DIPTERA, PEPUNCULIDAE) DA REGIÃO AMAZÔNICA
Provedor de dados: 36
Autores: MENEZES,Maria Denise da Silva; RAFAEL,José Albertino.
Duas espécies amazônicas de Elmohardyiasão descritas e ilustradas: Elmohardyia manaossp.n. e Elmohardyia conchulatasp.n.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diptera; Elmohardyia; Pipunculidae; Taxonomia.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000200087

CALLIPHORIDAE (DIPTERA) IN MANAUS: IV. BACTERIA ISOLATED FROM BLOWFLIES COLLECTED IN STREET MARKETS
Provedor de dados: 36
Autores: PARALUPPI,Norival D; VASCONCELOS,Jurandir C. de; AQUINO,Josenilda S. de; CASTELLÓN,Eloy G; SILVA,Maria do S. B. da.
Staphylococcus aureus, Escherichia coli, Proteussp., Providenciasp., Citrobactersp. and Klebsiellasp. were isolated from calliphorid flies collected in eight street markets in the city of Manaus, Amazonas State, Brazil. The presence of £. coliin the samples suggests that faecal contamination is occurring and that these flies are potential vehicles of enteropathogenic bacteria to exposed foods.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bacterial contamination; Calliphoridae; Manaus; Street markets.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000200093

FONTES DE PÓLEN EXPLORADAS POR Melipona compressipes manaosensis(APIDAE: MELIPONINAE), ABELHA DA AMAZÔNIA CENTRAL
Provedor de dados: 36
Autores: ΜARQUES-SOUZA,Antonio Carlos.
Analisou-se os pólen transportados por operárias de Melipona compressipes inanaosensisSchwarz, 1932, durante o período de um ano, entre agosto de 1988 ejulho de 1989. Foram encontrados 30 tipos polínicos distribuídos em 22 gêneros e 19 famílias. Das espécies vegetais coletadas pelas abelhas, as cássias representaram as principais fontes de pólen, seguidas de duas espécies de Miconiae de três espécies de Solarium.Outras espécies como Tapirira guianensis, Doliocarpussp., Lindackeriasp., Mimosa pudica,etc., foram bem coletadas pelas operárias, mas em períodos intercalados. Tudo indica que as coletas de pólen de Melipona compressipes inanaosensispodem sofrer influências com as mudanças climáticas, pois no período chuvoso, que correspondeu ao mês de maio, houve...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pólen; Plantas apícolas; Melipona compressipes manaosensis; Abelha sem ferrão.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000200077

ELECTROPHORETIC ANALYSIS OF 11 ENZYMES IN NATURAL POPULATIONS OFROOT, 1926 (DIPTERA: CULICIDAE) IN THE AMAZON REGION
Provedor de dados: 36
Autores: SANTOS,Jaselita M.M. dos; TADEI,Wanderli Pedro; CONTEL,Eucléia P.B.
Of eleven proteins analyzed in four Amazonian populations, the esterases showed the greatest variation, with five activity zones. EST1, EST2 and EST5 showed variation in each of the populations studied. EST1 and EST2 are each controlled by two, and EST5 by four, codomi-nant alleles. LAP presented six activity zones, with codominant variation in LAP5and LAP6.oc—GPDH was monomorphic with one activity band on starch gel and two on polyacrylamide gel. 1DH presented two activity zones, with variation in the IDHl region. PGM had a single activity zone, with variation in all populations. The Ariquemes populations showed five alleles and the other populations three, all of then codominant. Three activity zones with two codominant alleles were observed for ODH....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anopheles darlingi; Isozymes; Electrophoresis.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000200097

MÉTODOS SIMPLES DE ARMAZENAMENTO DAS SEMENTES DE ANDIROBA (Carapa guianensisAubl. e Carapa proceraD.C. -Meliaceae).
Provedor de dados: 36
Autores: FERRAZ,Isolde Dorothea Kossmann; SAMPAIO,Paulo de Tarso Barbosa.
O estudo objetivou testar procedimentos simples e de ampla aplicação que permitem o armazenamento de sementes recalcitrantes de essências florestais cuja produção de mudas é limitada pela oferta de sementes. Carapa procerae C. guianensissão espécies de interesse econômico cujas sementes perdem sua capacidade germinativa poucos dias após a coleta. Em C. proceratal perda já foi correlacionada com a desidratação das sementes. Foram testados métodos de armazenamento em sacos plásticos, durante 7 meses, em diferentes condições ambientais e em água corrente. Observou-se os teores de umidade no inicio e após os tratamentos. O armazenamento na sombra não teve sucesso, provavelmente devido a destruição da embalagem por insetos, o que causou a perda da viabilidade...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carapa proceraD. C; Carapa guianensisAubl.; Armazenamento de Sementes; Sementes recalcitrantes.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000300137

ASPECTOS ECOLÓGICOS DA VEGETAÇÃO RUPESTRE DA SERRA DOS CARAJÁS, ESTADO DO PARÁ, BRASIL
Provedor de dados: 36
Autores: SILVA,Manoela F. F. da; SECCO,Ricardo de S; LOBO,Maria da Graça A.
São fornecidos aspectos ecológicos gerais da vegetação "rupestre" da Serra dos Carajás, envolvendo informações sobre composição floristica, associação solo/planta, fauna/planta e distribuição geográfica das espécies. Nesta vegetação foi registrado um total de 232 espécies, a maioria ervas, distribuídas em 145 gêneros e 58 famílias botânicas. As duas famílias mais bem representadas foram Gramineae e Leguminosae, seguidas de Cyperaceae, Myrtaceae, Rubiaceae, Malpighiaceae, Euphorbiaceae e Compositae. Algumas famílias apresentam espécies arbóreas esporadicamente representadas em "capões de árvores" ou isoladas como Anacardiaceae, Rutaceae, Sapotaceae e Vochysiaceae. Há famílias de ocorrência restrita em locais onde há acumulo de água, como Begoniaceae,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Savana Tropical; Fitossociologia; Fitogeografia; Vegetação rupestre; Amazônia.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000200017

A PESCA ARTESANAL NO BAIXO AMAZONAS: ANÁLISE MULTIVARIADA DA CAPTURA POR ESPÉCIE.
Provedor de dados: 36
Autores: ISAAC,Victoria Judith; MILSTEIN,Ana; RUFFINO,Mauro Luis.
Dados sobre esforço e captura por espécie correspondentes à produção pesqueira desembarcada no porto de Santarém, no ano de 1993, foram submetidos a duas técnicas de análise multivariada: uma análise de fatores segundo o método de componentes principais e outra de co-variância conforme o modelo linear geral (GLM). Os resultados indicam que a atividade pesqueira na região está influenciada pelas características dos ciclos de vida das espécies-alvo, pelo ciclo hidrológico e condição climáticas de sistema, e ainda pelas preferências culturais e interesses econômicos do mercado consumidor. Os resultados indicam o direcionamento da atividade pesqueira para determinados grupos de espécies, e as diferentes variáveis incluídas no modelo permitiram uma explicação...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pesca artesanal; Baixo Amazonas; Dinâmica da pesca.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000300185

ESTUDOS SOBRE CAROTENÓIDES COM ATIVIDADE DE PROVITAMINA "A" EM CULTIVARES DE MANDIOCA (Manihot esculentaCRANTZ) EM ECOSSISTEMA DE TERRA FIRME DE MANAUS, AMAZONAS, BRASIL.
Provedor de dados: 36
Autores: MARINHO,Helyde A.; XAVIER,José Jackson Β. Ν.; MIRANDA,Roberto Μ.; CASTRO,Janete S.
Foram conduzidos experimentos de competição entre cultivares de mandioca (Manihot esculentaCrantz) em ecossistema de terra firme (Manaus - Amazonas), com objetivo de obter melhores cultivares de mandioca com relação a produtividade e teor de caroteno pró-vitamínico A. Raízes de sete cultivares de mandioca amarela foram selecionadas para identificação e quantificação de carotenos com atividade de vitamina A, mediante o método descrito por Rodriguez. Observou-se, também, as perdas de pró-vitamina A pelo processamento e armazenamento de farinha. Constatou-se a presença de três isômeros do β - caroteno (o 13 - eis -β - caroteno, o β - caroteno todo trans e o 9 - eis -β - caroteno U). Quanto aos teores de vitamina A, expressos em equivalente de retinol, nas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caroteno; Mandioca; Farinha e vitamina A.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000300127

CARACTERÍSTICAS DA GERMINAÇÃO DE SEMENTES DE 64 ESPÉCIES DE LEGUMINOSAS FLORESTAIS NATIVAS DA AMAZÔNIA, EM CONDIÇÕES DE VIVEIRO
Provedor de dados: 36
Autores: MOREIRA,Fatima Maria de Souza; MOREIRA,Francisco Wessen.
Foram estudados aspectos da germinação de sementes de 64 espécies de leguminosas, nativas da Amazônia, sendo 52 arbóreas, 10 cipós, 1 arbusto e 1 herbácea, oriundas de áreas de terra firme ou periodicamente inundadas. Cinquenta e oito por cento das espécies apresentaram, sem tratamento pré-germinativo, percentagens de germinação maiores que 70% num período menor que 91 dias. Em 8 espécies de tegumento duro as percentagens de germinação, sem pré-tratamento, encontradas foram menores que 40%. Cinquenta e nove por cento das espécies de áreas inundadas apresentaram uma germinação tipo hipógea enquanto, cinquenta e quatro por cento das espécies de terra firme apresentaram uma germinação epigea. Poliembrionia ocorreu em 22% das espécies. Sementes com comprimento...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leguminosas; Amazônia; Sementes.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000200003

ABELHAS SOCIAIS (HYMENOPTERA : APIDAE) E SEUS RECURSOS FLORAIS EM UMA REGIÃO DE MATA SECUNDÁRIA, ALCÂNTARA, MA, BRASIL
Provedor de dados: 36
Autores: GONÇALVES,Silmary de Jesus M; RÊGO,Márcia; ARAÚJO,Andréa de.
De julho/1992 a junho/1993 foram feitas coletas em intervalos de ,28 a 30 dias em uma .área de vegetação secundária com 1.650m2, próxima ao rio Pepital, em Alcântara - MA, com o objetivo de conhecer a fauna apícola e suas relações com a flora local. Foram coletados sobre flores 1.076 indivíduos (1.073 fêmeas e 03 machos), pertencentes a 20 espécies e 11 gêneros da família Apidae. Trigona fulviventrís(42,2%), Apis mellifera(24,5%), Trigona pollens(12,5%), Trigona fuscipennis(10,0%), Tetragona clavipes(2,9%) e Melipona puncticollis(2,3%) foram as espécies mais abundantes. O menor número de indivíduos foi coletado em abril (mês chuvoso), e o mês com maior númerode indivíduos capturados foi julho. A maior frequência de Apidae foi observada entre 6:00 e 8:00...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abelhas; Apidae; Recursos florais; Alcântara.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000200055

ANTHOPHORIDAE (HYMENOPTERA; APOIDEA) E FLORA ASSOCIADA EM UMA FORMAÇÃO DE CERRADO NO MUNICÍPIO DE BARREIRINHAS, MA, BRASIL
Provedor de dados: 36
Autores: ALBUQUERQUE,Patrícia M.C; MENDONÇA,José Angelo C.
Os cerrados maranhenses estão localizados na Bacia Parnaibana principalmente ao leste e sul do estado. A área de estudo localiza-se na Mesorregião Oeste do Maranhão entre os municípios de Urbano Santos e Barreirinhas. As coletas foram realizadas mensalmente de setembro dc 1991 a agosto de 1992 com 12 horas de duração cada. Foram capturados 196 espécimens, 17 espécies e 6 gêneros de Anthophoridae. Centrisfoi o gênero com maior diversidade e abundância (7 espécies; 115 indivíduos), seguido de Xylocopa(4; 59) e Paratetrapedia(3; 17). Estiveram em atividade durante o ano todo, porém os maiores picos de abundância no número de indivíduos foram nos meses de outubro e novembro, que coincidiram com o período de maior floração do cerrado. Leguminosae e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Apoidea; Anthophoridae; Abelhas; Cerrado.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000200045

FRUTOS DA FLORESTA AMAZÔNICA. PARTE I: MYRISTICACEAE
Provedor de dados: 36
Autores: VAN ROOSMALEN,Marc G. M.; BARDALES,Maria del Pilar Diaz; GARCIA,Olímpia Maria da Cruz Gomes.
Descrições e desenhos de frutos e sementes das espécies da família Myristicaceae,na Amazônia legal, são apresentadas, juntamente com informações adicionais sobre o hábito, habitat, distribuição geográfica e dispersão de sementes de cada espécie. O presente trabalho consta de um glossário visualizado, dos termos botânicos amplamente utilizados.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazônia Myristicaceae frutos morfologia ecologia dispersão de sementes glossário de inflorescências; Folhas; E frutos.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000400209

EFICIÊNCIA DA ISCA MIREX-S (SULFURAMIDA 0,3%) NO CONTROLE DE Atta cephalotes(HYMENOPTERA: FORMICIDAE) EM TRÊS DOSAGENS
Provedor de dados: 36
Autores: ZANUNCIO,José Cola; CRUZ,Adalton Pinheiro da; SANTOS,Darcy Francisco dos; OLIVEIRA,Marco Antonio de.
Este trabalho foi realizado em reflorestamentos de eucalipto híbrido urograndis (Eucalyptus urophyllaX Eucalyptus grandis)da Jari Celulose S.A, no município de Almerim, Pará, de julho de 1993 a janeiro de 1994. Objetivou-se testar a eficiência da isca granulada Mirex-S (sulfluramida 0,3%), nas dosagens de 6, 8 e 10 gramas por metro quadrado de formigueiro, em comparação com 10 gramas de uma isca a base de dodecacloro (0,45%) para o controle de Atta cephalotes(Hymenoptera: Formicidae). A isca Mirex-S apresentou índices de controle, respectivamente, de 72,70%, 83,33% e 91,67%, em contrapartida com 87,50% da isca a base de dodecacloro. A isca Mirex-S, a 8 e 10 gramas por metro quadrado de formigueiro, pode substituir com eficiência as iscas à base de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atta cephalotes; Formigas cortadeiras; Mirex-S; Sulfluramida.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671996000200115

O gênero Diplazium Sw. (Dryopteridaceae, Pteridophyta) no Estado do Paraná, Brasil
Provedor de dados: 39
Autores: Cislinski,Jovita.
O presente trabalho trata do levantamento do gênero Diplazium Sw. (Dryopteridaceae) no Estado do Paraná. A delimitação das espécies foi baseada em caracteres morfológicos. De acordo com os dados obtidos, foi possível reconhecer 11 espécies. Chave de identificação, comentários, distribuição geográfica e ilustrações são apresentados.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Florística; Diplazium; Dryopteridaceae; Paraná.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100006

Notas taxonômicas em Xyris L. (Xyridaceae)
Provedor de dados: 39
Autores: Wanderley,Maria das Graças Lapa; Sajo,Maria das Graças.
São propostas alterações nomenclaturais e taxonômicas em Xyris, status novum e dois novos sinônimos.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Xyridaceae; Xyris; Status novo; Novos sinônimos.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200008

Espécies vegetais dominantes do arquipélago de Fernando de Noronha: grupos ecológicos e repartição espacial
Provedor de dados: 39
Autores: Batistella,Mateus.
São relacionadas as 60 principais espécies vegetais dominantes do Arquipélago de Fernando de Noronha, no Nordeste brasileiro: 33 herbáceas, 12 lenhosas baixas (&lt; 2 metros) e 15 lenhosas altas (&amp;gt; 2 metros). A partir de tratamentos numéricos analíticos, as informações mútuas para cada espécie em relação a variáveis ambientais evidencia grupos ecológicos distintos, caracterizados por seus padrões de repartição espacial. As plantas com padrão de repartição espacial definido dividem-se em espécies ubiquistas, de sotavento, de barlavento, costeiras, de áreas interiores, de áreas florestadas e de ocorrência isolada. As plantas com padrão pouco definido são classificadas mais por sua função na paisagem que pelo modo de repartição espacial nas ilhas e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arquipélago de Fernando de Noronha; Espécies vegetais dominantes; Informação mútua; Padrões de repartição espacial.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200003

Uma nova espécie de Calyptranthes (Myrtaceae) da flora do Rio de Janeiro, Brasil
Provedor de dados: 39
Autores: Barroso,Graziela Maciel; Peixoto,Ariane Luna.
É descrita uma nova espécie para o gênero Calyptranthes (Myrtaceae), ocorrente na Reserva Biológica do Tinguá, município de Nova Iguaçu, Rio de Janeiro. Trata-se de árvore ou arvoreta do estrato intermediário ou inferior da floresta atlântica que se destaca pela pilosidade densa e rufa de seus raminhos, pecíolos e dorso foliar. Pela sua forma de crescimento com copa pequena e arredondada e beleza de seus ramos esfoliantes, a nova espécie tem aptidão ornamental como arvoreta para áreas sombreadas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Calyptranthes; Myrtaceae; Floresta atlântica.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100007

Melastomataceae no Distrito Federal, Brasil: Tribo Miconieae DC
Provedor de dados: 39
Autores: Munhoz,Cássia Beatriz Rodtigues.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200012

Universidade Federal do Rio Grande do Sul
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200017

Universidade Federal de Pernambuco
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200015

Microsporogênese e etapas da ontogenia do gametófito masculino de Tabebuia ochracea (Cham.) Standley (Bignoniaceae)
Provedor de dados: 39
Autores: Bittencourt Jr,Nelson S.
Foram analisadas as etapas da ontogenia do gametófito masculino e da parede da antera de Tabebuia ochracea. O método de formação da parede do microsporângio é do tipo Dicotiledôneo. O tecido esporogênico, em cada microsporângio, visto em secção transversal, organiza-se em uma fileira celular em forma de ferradura. O tapete é do tipo secretor e possui origem dual. O tapete interno diferencia-se precocemente em relação ao tapete externo. As duas camadas tapetais são estruturalmente dimórficas, mas no fim do estágio prémeiótico elas se tormam idênticas e com característico vacuoma bipolar. O endotécio desenvolve espessamentos helicoidais em suas paredes celulares. O desenvolvimento do pólen segue o modo usual em angiospermas. O expressivo crescimento do...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bignoniaceae; Tabebuia; Ontogenia; Tapete; Placentóide; Micrósporos; Gametófito masculino; Pólen; Vacúolos nucleolares.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100002

Distribuição espacial de espécies perenes em uma mata de galeria inundável no Distrito Federal: florística e fitossociologia
Provedor de dados: 39
Autores: Walter,Bruno Machado Teles.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200010

Errata
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200020

O gênero Miconia Ruiz &amp;amp; Pav. (Melastomataceae) no Estado de São Paulo
Provedor de dados: 39
Autores: Martins,Angela Borges; Semir,João; Goldenberg,Renato; Martins,Eneida.
Este trabalho trata das espécies de Miconia coletadas no Estado de São Paulo. As 53 espécies aqui relacionadas, descritas e comentadas representam, provavelmente, todos os táxons do gênero até o momento coletados neste Estado.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Melastomataceae; Miconia; Florística; São Paulo.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200005

Universidade de São Paulo
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200019

Universidade Federal do Rio de Janeiro
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200018

Myxomycetes em Palmeiras (Arecaceae)
Provedor de dados: 39
Autores: Alves,Maria Helena; Cavalcanti,Laise de Holanda.
As palmeiras oferecem um ecossistema especializado que abriga organismos variados, incluindo Myxomycetes. Este trabalho relata doze espécies de Myxomycetes encontradas em folhas mortas, espata e estipe de Acrocomia intumescens Drude (macaúba), Copernicea prunifera (Mill.) H. E. Moore (carnaúba), Mauritia flexuosa Mart, (buriti) e Orbygnia phalerata Mart, (babaçu). Constitui-se área de coleta o Município do Crato, Ceará, Nordeste do Brasil (7º 30'00" S, 39º 00' 00" W, 400-1200 m de altitude). Coletas aleatórias foram efetuadas e as frutificações foram pesquisadas em órgãos vivos ou mortos das palmeiras. Exsicatas foram depositadas no Herbário UFP (Departamento de Botânica da Universidade Federal de Pernambuco, Recife - PE, Brasil). As espécies registradas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Myxomycetes; Substrato; Arecaceae; Ceará; Brasil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100001

Universidade Estadual Paulista de Botucatu
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200009

Universidade Federal de Pernambuco
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200016

Contribuição ao conhecimento da distribuição espacial de Paepalanthus polyanthus (Bong.) Kunth (Eriocaulaceae) em áreas de baixada úmida de dunas
Provedor de dados: 39
Autores: Castellani,Tânia Tarabini; Vieira,Silvana; Scherer,Karla Zanenga.
A distribuição espacial de Paepalanthus polyanthus foi avaliada em função da variação topográfica e da cobertura vegetal associada, em um trecho de baixada úmida de dunas na Praia da Joaquina, Florianópolis, SC. Foram delimitadas 4 transecções, ao longo das quais, quadrados de 0.5 m² foram dispostos de maneira contínua. A densidade de P. polyanthus e a porcentagem de cobertura vegetal foram determinadas para cada quadrado amostrai, registrando-se também, as espécies de maior cobertura. Em todas as transecções, P. polyanthus apresentou um padrão de distribuição agregado (índice de dispersão de Morisita Id&amp;gt;1, P&lt;0.001), estando seus indivíduos mais concentrados em áreas intermediárias da microrrelevo. P. polyanthus não ocorreu nos trechos mais...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Paepalanthus polyanthus; Eriocaulaceae; Distribuição espacial; Baixada úmida de dunas.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100003

Notas taxonômicas para espécies brasileiras dos gêneros Epidendrum, Platystele, Pleurothallis e Scaphyglottis (Orchidaceae)
Provedor de dados: 39
Autores: Barros,Fábio de.
É proposta uma nova combinação para o gênero Epidendrum L.: E. secundum var. albescens (Pabst) F. Barros, e a sinonimização de Hexadesmia cearensis Schltr. com Scaphy glottis fusiformis (Griseb.) Schultes; três novas ocorrências são citadas para o Brasil: Platy stele stenostachya (Rchb. f.) Garay, Pleurothallis blaisdellii S. Wats, e Pleurothallis navicularis Lindl. É apresentada uma ilustração de Epidendrum dichaeoides Carnevalli &amp;amp; Romero.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Orchidaceae; Epidendrum; Platystele; Pleurothallis; Scaphyglottis.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100011

Métodos de coloração de Roeser (1972): modificado - e Kropp (1972) visando a substituição do azul de astra por azul de alcião 8GS ou 8GX
Provedor de dados: 39
Autores: Luque,Rebeca; Sousa,Hildeberto C. de; Kraus,Jane Elizabeth.
Em folhas de Lychnophora ericoides, Coffea arabica e Nymphaea mexicana foram testados métodos de coloração baseados em Roeser (1972) modificado e Kropp (1972), visando a substituição do corante azul de astra por azul de alcião 8GS ou 8GX. As amostras foram fixadas em FAA, desidratadas em série butílica terciária e incluídas em parafina. Os cortes histológicos transversais foram corados segundo diferentes baterias de coloração, modificadas quanto ao tipo de corante usado, diferenciador e série de desidratação. As lâminas permanentes foram preparadas com bálsamo-do-canadá sintético. Os resultados obtidos evidenciaram que o método de Roeser (1972) modificado é melhor que o de Kropp (1972), nas condições deste experimento. O azul de astra pode ser substituído...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Método de coloração; Azul de astra; Azul de alcião; Fucsina básica; Safranina; Histologia vegetal.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200001

Efeito do estresse hídrico na germinação e crescimento inicial de três espécies de leguminosas
Provedor de dados: 39
Autores: Santarém,Eliane Romanato; Almeida-Cortez,Jarcilene S; Silveira,Tânia Sales da; Ferreira,Alfredo Gui.
Sementes de Senna macranthera, S. multijuga e Mimosa bimucronata foram submetidas a diferentes potenciais osmóticos simulados com PEG 6000 (0; -0,15; -0,49; -1,03 MPa) com o objetivo de avaliar o efeito do estresse hídrico na germinação e crescimento inicial de plântulas. Os potenciais osmóticos de -0,15 e -0,49MPa causaram um retardo de 12, 24 e 48 horas no início da germinação de M. bimucronata, S. multijuga e S. macranthera, respectivamente. Em todas as espécies, a germinabilidade final das sementes submetidas ao Ψ = -0,49MPa foi reduzida e nenhuma semente germinou em solução de Ψ = -1,03MPa. Estes resultados indicam um limite de tolerância entre os potenciais -0,49 e -1,03MPa. Plântulas de S. macranthera mostraram-se mais sensíveis ao estresse hídrico,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estresse hídrico; PEG 6000; Germinação; Leguminosae; Plântulas.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200002

Ceras foliares epicuticulares de espécies congêneres da mata e do cerrado
Provedor de dados: 39
Autores: Varanda,Elenice Mouro; Santos,Déborah Yara Alves Cursino dos.
Espécies de cerrado e mata foram analisadas quanto à sua composição em ceras foliares epicuticulares e de seus componentes hidrocarbonetos. Observou-se nas espécies de cerrado uma tendência a teores de ceras pouco maiores que os de espécies de mata estacionai semidecídua. A porcentagem de hidrocarbonetos nas ceras foi maior na maioria das espécies de mata que nas espécies congêneres de cerrado. Pela análise em CG, os hidrocarbonetos mostraram predominância de C29 e C31 apresentando um comprimento médio da cadeia de carbono dos homólogos menos variável em espécies de mata, em torno de 30,5, que de cerrado nas quais este valor variou de 28,5 a 31,3. Os resultados são discutidos em relação ao provável papel ecológico das ceras e sua aplicação como marcadores...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ceras epicuticulares; Cerrado; Floresta semidecídua; Alcanos; Ecologia.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100005

Tecomeae (Bignoniaceae) da Cadeia do Espinhaço, Minas Gerais e Bahia, Brasil
Provedor de dados: 39
Autores: Lohmann,L.G.; Pirani,J.R.
Este trabalho consiste num levantamento florístico dos representantes da tribo Tecomeae (Bignoniaceae) ocorrentes na Cadeia do Espinhaço, região serrana do interior de Minas Gerais e Bahia com cobertura vegetal constituída principalmente por campos rupestres. A tribo está representada na área por 17 espécies, distribuídas em 4 gêneros: Zeyheria (2 spp.), Tabebuia (6 spp.),Jacaranda (8 spp.) e Cybistax (1 sp.). São apresentadas chaves para os gêneros e espécies, descrições, ilustrações e comentários. J. oxyphylla é considerada sinônimo de J. caroba e J. morii é considerada sinônimo de J. ulei.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bignoniaceae; Tecomeae; Florística; Cadeia do Espinhaço.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100010

Universidade Federal do Paraná
Provedor de dados: 39
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200014

Zornia J. F. Gmel. (Leguminosae - Papilionoideae - Aeschynomeneae) no Estado de São Paulo
Provedor de dados: 39
Autores: Sciamarelli,Alan; Tozzi,Ana Maria G. de Azevedo.
Este trabalho teve como objetivo levantar e estudar as espécies do gênero Zornia J.F.Gmel. que ocorrem no Estado de São Paulo. Foi confirmada a ocorrência de 9 espécies: Zornia gardneriana Moric., Z. virgata Moric., Z. cryptantha Arechav., Z. ramboiana Mohlenbr., Z. glabra Desv., Z. reticulata Sm., Z. latifolia Sm., Z. curvata Mohlenbr. e Z gemella (Willd.) Vogel. Zornia paniculata N.F. Mattos foi considerada sinônimo de Z virgata. Para as espécies foi confeccionada uma chave para identificação, descrições, comentários, ilustrações e mapas de distribuição geográfica.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zornia; Leguminosae; Papilionoideae; Aeschynomeneae.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200004

Fenologia de Paepalanthus hilairei Koern., P. polyanthus (Bong.) Kunth e P. robustus Silveira: Paepalanthus sect. Actinocephalus Koern. - Eriocaulaceae
Provedor de dados: 39
Autores: Sano,Paulo Takeo.
Foi realizado o acompanhamento fenológico de três espécies de Paepalanthus sect. Actinocephalus: P. hilairei, P. polyanthus e P. robustus. Realizaram-se viagens mensais à Serra do Cipó, Minas Gerais, Brasil, durante um período de 21 meses. Detectou-se que P. hilairei e P. robustus são perenes e P. polyanthus é bienal. Nestas espécies verificou-se um período de floração concentrado nos meses do verão. A ocorrência de odor é registrada pela primeira vez em representantes do gênero.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eriocaulaceae; Paepalanthus; Actinocephalus; Fenologia; Serra do Cipó.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200006

Vegetação campestre do sul do Brasil: dinâmica de espécies à exclusão do gado
Provedor de dados: 39
Autores: Boldrini,Ilsi Iob; Eggers,Lilian.
O presente estudo objetivou avaliar modificações ocorridas na vegetação em uma área de campo natural, após oito anos sem influência de pastoreio. A área situa-se na Estação Experimental Agronômica da UFRGS, no município de Eldorado do Sul, RS, onde foram realizadas amostragens em 1984 e 1992. Dezesseis unidades amostrais permanentes de 0,25 m² foram utilizadas para verificar a presença e o valor de cobertura das espécies, pela escala de Daubenmire. São apresentados os valores de freqüência e cobertura absolutas (FA e CA, respectivamente) das espécies de Gramineae, Compositae, Rubiaceae, Leguminosae, Umbelliferae e Cyperaceae nos levantamentos de 1984 e 1992. O trabalho evidenciou a relação entre a forma biológica das espécies predominantes e os estados...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dinâmica da vegetação; Exclusão do gado; Fitossociologia; Pastagem natural; Sucessão vegetal; Vegetação campestre.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100004

Estudos em "sempre-vivas": taxonomia com ênfase nas espécies de Minas Gerais, Brasil
Provedor de dados: 39
Autores: Giulietti,Ana Maria; Wanderley,Maria das Graças Lapa; Longhi-Wagner,Hilda Maria; Pirani,José Rubens; Parra,Lara Regina.
"Sempre-vivas" é o nome dado no Brasil a partes de plantas, geralmente escapos e inflorescências, que conservam a aparência de estruturas vivas mesmo depois de destacadas e secas e que são comercializadas e exportadas para decoração de interiores. Folhas, frutos e sementes também são utilizados, mas em menor escala. As espécies de "sempre-vivas" são oriundas dos cerrados do Centro-Oeste e Sudeste do Brasil e, as de maior valor comercial, dos campos rupestres de Minas Gerais, Bahia e Goiás. Entre estas, predominam espécies de Eriocaulaceae, Poaceae (Gramineae), Xyridaceae, Cyperaceae e Rapateaceae, em ordem decrescente de importância. O maior centro de comercialização é a cidade de Diamantina, em Minas Gerais, com 25 espécies de Eriocaulaceae, 12 de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sempre-vivas; Eriocaulaceae; Poaceae (Gramineae); Xyridaceae; Cyperaceae; Rapateaceae; Brasil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200007

Aspectos morfológicos, ecológicos e biogeográficos de 10 táxons de Capsicum (Solanaceae) ocorrentes no Brasil
Provedor de dados: 39
Autores: Bianchetti,Luciano de Bem.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200011

Briófitas de caatinga: 2. Agrestina, Pernambuco, Brasil
Provedor de dados: 39
Autores: Pôrto,Kátia Cavalcanti; Bezerra,Maria de Fátima de Andrade.
Em uma área de caatinga do município de Agrestina (Lat. 8º27'28"S; Long. 35º57'13"W) - PE foram identificadas 13 espécies de Bryophyta, pertencentes as famílias Frullaniaceae, Lejeuneaceae, Ricciaceae - Hepaticopsida-Bryaceae, Dicranaceae, Ephemeraceae, Fissidentaceae, Leucobryaceae, Pottiaceae e Stereophyllaceae - Bryopsida. Constituem-se novos registros para a região Nordeste Cololejeunea minutíssima (Sm.) Schiffn. e Riccia brasiliensis Schiffn. e para Pernambuco Frullania dusenii Steph.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bryophyta; Caatinga; Pernambuco.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100009

O gênero Solanum (Solanaceae) no Distrito Federal
Provedor de dados: 39
Autores: Silva,Suelma Ribeiro.
Tipo: Info:eu-repo/semantics/other
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000200013

Levantamento taxonômico de Cyperus L. 1. subg. Anosporum (Nees) Clarke (Cyperaceae-Cypereae) no Rio Grande do Sul, Brasil
Provedor de dados: 39
Autores: Araujo,Ana Cláudia; Longhi-Wagner,Hilda Maria.
Este trabalho foi baseado em revisão da literatura e de herbários, coletas e observação das populações no campo. Decisões taxonômicas foram baseadas na morfologia vegetativa e reprodutiva, resultando no reconhecimento de quatorze taxa, onze espécies e três variedades. É fornecida uma chave analítica para a identifiação dos taxa encontrados, bem como descrições, ilustrações, dados de distribuição geográfica, habitat e fenologia.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Florística; Cyperaceae; Cyperus subg. Anosporum; Rio Grande do Sul; Brasil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100012

Luiz Fernando Gouvêa Labouriau (1921-1996)
Provedor de dados: 39
Autores: Handro,Walter.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100013

Morfologia do desenvolvimento pós-seminal de Syngonanthus elegans e S. niveus (Eriocaulaceae): Eriocaulaceae
Provedor de dados: 39
Autores: Scatena,Vera Lúcia; Lemos Filho,José Pires de; Lima,Ana Amélia Araújo.
As espécies S. elegans (Bong.) Ruhl. e S. niveus (Kunth.) Ruhl. (Eriocaulaceae) são conhecidas como sempre-vivas e ocorrem nos campos rupestres da Serra do Cipó - MG. Devido a sua utilização como ornamental, ressalta-se a importância dos dados sobre sua germinação e desenvolvimento pós-seminal. As sementes foram colocadas para germinar em câmara de germinação, em condições controladas, e no ambiente de laboratório no claro e no escuro. Para cada tratamento foram utilizadas 4 repetições com 25 sementes em placas de Petri com papel de filtro umedecido. Os resultados mostraram que as sementes de S. elegans e S. niveus são fotoblásticas positivas. As etapas do desenvolvimento pós-seminal são semelhantes para ambas espécies e, na germinação, observa-se a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Germinação; Desenvolvimento pós-seminal; Syngonanthus.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061996000100008

FIRST RECORD OF THE PIGMY SQUID, PICKFORDIATEUTHIS PULCHELLA (CEPHALOPODA: MYOPSIDA: LOLIGINIDAE), FROM THE CARIBBEAN COAST OF COLOMBIA
Provedor de dados: 50
Autores: Arango,Claudia P.; Díaz,Juan M.
Se registra por primera vez para el Caribe colombiano el calamar "pigmeo", Pickfordiateuthis pulchella, a partir de cuatro hembras colectadas en cercanías de Santa Marta. Aunque esta especie no era conocida de la costa continental del norte de Suramérica, el alto grado de dispersión de los pocos registros conocidos sugiere que su distribución en el Atlántico occidental es bastante amplia.
Tipo: Info:eu-repo/semantics/report
Ano: 1996
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97611996000100006

CARACTERIZACIÓN GEOMORFOLÓGICA DE LA LLANURA DELTAICA DEL RIO MAGDALENA CON ÉNFASIS EN EL SISTEMA LAGUNAR DE LA CIÉNAGA GRANDE DE SANTA MARTA, COLOMBIA
Provedor de dados: 50
Autores: Bemal,Gladys.
La llanura localizada entre el río Magdalena y la Sierra Nevada de Santa Marta ha sido subdividida en cinco unidades geomorfológicas: llanura de inundación del río Magdalena; sistema lagunar del delta actual; sistema lagunar marginal; playa e isla barrera y llanura aluvial de piedemonte. Los rasgos que se presentan en cada una son producto de eventos específicos en el tiempo. El sistema lagunar marginal y su isla barrera conforman un esquema de laguna costera - barra - mar. La costa de Salamanca es dominada por olas y está sometida a procesos recesivos. El perfil generalizado de la isla comprende mar - playa - dunas - planicie vegetada - salar - planicie vegetada - bosque de mangle - laguna. El sistema lagunar marginal (que incluye la Ciénaga Grande) es...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97611996000100002

GEOMORFOLOGÍA Y FORMACIONES ARRECIFALES RECIENTES DE ISLA FUERTE Y BAJO BUSHNELL, PLATAFORMA CONTINENTAL DEL CARIBE COLOMBIANO
Provedor de dados: 50
Autores: Díaz,Juan M.; Sánchez,Juan A.; Díaz-Pulido,Guillermo.
Con base en observaciones directas en el campo e interpretación de fotografías aéreas y de perfiles efectuados con ecosonda se hace una descripción general de los rasgos geomorfológicos y de las formaciones coralinas de Isla Fuerte y Bajo Bushnell, dos áreas arrecifales localizadas frente a la costa sur-central del Caribe colombiano. Isla Fuerte es un complejo arrecifal holocénico parcialmente emergido. La plataforma insular ocupa un área de unos 13 km² y, además de una porción emergida, posee diversas estructuras arrecifales, tales como barrera franjeante a barlovento, cinturón arrecifal periférico en el borde de la plataforma y arrecifes de parche someros, además de amplias praderas de fanerógamas a sotavento. De otro lado, Bajo Bushnell es un banco...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97611996000100005

CRECIMIENTO DEL CORAL ACROPORA PALMATA (LAMARCK, 1886) EN EL PARQUE NACIONAL NATURAL CORALES DEL ROSARIO, CARIBE COLOMBIANO
Provedor de dados: 50
Autores: García U.,Rocío del Pilar; Alvarado Ch.,Elvira M.; Acosta M.,Alberto.
Se determinó la tasa de crecimiento durante 10 meses (septiembre 1992-Julio 1993) para 30 colonias de Acropora palmata en la zona norte del Parque Nacional Natural Corales del Rosario, Caribe Colombiano. Se emplearon tres técnicas de medición: medida manual directa, tinción con el colorante rojo de alizarina y lectura de bandas de crecimiento a través de fotografía de rayos X. El estimativo anual de crecimiento para la especie en el Parque fue de 5.2 ± 1.3 cm y se encontró inversamente correlacionado con el tamaño de las colonias (largo, ancho y alto). El crecimiento presentó una variación espacial, siendo Isla Caleta la estación con menor tasa de crecimiento e Isla Caribarú la de mayor. El máximo crecimiento se encontró en la época seca...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97611996000100001

EDAD Y CRECIMIENTO DE LA SARDINA MONTERREY SARDINOPS CAERULEUS (PISCES: CLUPEIDAE) EN ISLA DE CEDROS, BAJA CALIFORNIA, MÉXICO, DURANTE 1985 Y 1986
Provedor de dados: 50
Autores: Alvarado Castillo,Reyna; Félix Uraga,Roberto.
Durante 1985 y 1986, se realizaron muestreos mensuales de sardina monterrey Sardinops caeruleus (Piscas: Clupeidae) en la flota comercial que opera en Isla de Cedros Baja California, México. Se midieron 2609 organismos y se colectaron 994 pares de otolitos para hacer las estimaciones de edad mediante la lectura de bandas opaco-hialinas. El 87 % de los otolitos fue legible, encontrándose organismos de hasta cinco años de edad. En la captura comercial de 1985 predominaron las sardinas de dos años de edad y en 1986 las de tres años. Las tallas fluctuaron entre los 135 mm y 230 mm de longitud estándar, siendo la longitud modal de 170 mm en 1985 y 190 mm en 1986. Se encontró que el crecimiento de la sardina es muy rápido en el primer año de vida, alcanzando en...
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97611996000100004

SEDIMENTOLOGÍA DE LAGUNAS COSTERAS: CIÉNAGA GRANDE DE SANTA MARTA Y CIÉNAGA DE PAJARALES
Provedor de dados: 50
Autores: Bernal,Gladys; Betancur,Julliet.
La Ciénaga Grande de Santa Marta y la ciénaga de Pajarales hacen parte de! sistema lagunar marginal del plano deltaico del río Magdalena en la costa Caribe de Colombia. Se realizó un muestreo superficial sistemático en las lagunas y la costa de Salamanca y puntual en el resto de la llanura deltaica. Se presentan resultados sobre análisis granulométricos, mineralógicos, de materia orgánica, calcimetría, difracción de rayos X y química de sales en los sedimentos. La información se procesó con el fin de elaborar mapas sedimentológicos del sistema, conocer la distribución de cada parámetro y las posibles áreas fuentes de los sedimentos.
Tipo: Info:eu-repo/semantics/article
Ano: 1996
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97611996000100003

Ocorrência de Serratia marcescens bizio sobre lagartas de Heliothis virescens (Fabr.)
Provedor de dados: 53
Autores: Ito,Margarida Fumiko; Paradela Filho,Osvaldo; Rodrigues Neto,Júlio; Beriam,Luis Otávio Saggion; Longo,Ronaldo de Souza; Santos,João Miguel dos.
Observou-se, em laboratório, grande número de lagartas mortas em uma criação de Heliothis virescens (Fabr.). Dessas lagartas, isolou-se uma bactéria, posteriormente identificada como Serratia marcescens Bizio. O presente trabalho registra sua ocorrência e comprova-lhe a patogenicidade sobre aquelas lagartas.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Entomopatógeno; Heliothis virescens; Serratia marcescens.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200013

Eficiência hospedeira de oito cultivares de bananeira a fitonematóides
Provedor de dados: 53
Autores: Dinardo-Miranda,Leila Lucí; Teixeira,Luiz Antonio Junqueira.
Os cultivares de bananeira (Musa spp.) Grande Naine, Nanicão Jangada, Nanicão (Grupo AAA), Enxerto, Prata, Prata Zulu, Maçã e Mysore (Grupo AAB) foram plantados em campo e avaliados quanto à eficiência hospedeira a nematóides. Todos eles apresentaram elevadas populações de Meloidogyne arenaria raça 1, sendo considerados, portanto, hospedeiros favoráveis dessa espécie. Os cultivares do grupo AAA e Mysore foram também hospedeiros favoráveis de Radopholus similis, enquanto os demais do grupo AAB se comportaram como hospedeiros pouco favoráveis. Helicotylenchus dihystera foi detectado em baixas populações, em raízes e no solo da rizosfera de todos os cultivares.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Musa spp.; Cultivares; Hospedeiros; Radopholus similis; Meloidogyne arenaria raça 1; Helicotylenchus dihystera.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200008

Adaptação hospedeira de variedades de abacaxi a meloidogyne incognita raça 1
Provedor de dados: 53
Autores: Dinardo-Miranda,Leila Lucí; Spironello,Ademar; Martins,Antonio Lúcio Mello.
Avaliou-se, em campo naturalmente infestado, a adaptação hospedeira das variedades de abacaxi Smooth Cayenne, Abacaxi-de-gomo, Bico-de-rosa, Boituva, Guiana, Huitota, Manzana, Natal Queen, Pérola, Perolera, Rondon, Roxo-de-Tefé e Turi Verde a Meloidogyne incognita raça 1. Somente 'Huitota' apresentou populações do nematóide significativamente menores que aquelas encontradas na 'Smooth Cayenne', considerada boa hospedeira da espécie.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ananas comosus; Variedades de abacaxi; Hospedeiros; Meloidogyne incognita.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200011

Temperatura letal de diferentes plantas frutíferas tropicais
Provedor de dados: 53
Autores: Sentelhas,Paulo Cesar; Piza Júnior,Clovis Toledo; Sigristi,José Maria Monteiro; Kavati,Ryosuke; Parodi,Marco Túlio.
Com o objetivo de conhecer melhor o efeito das baixas temperaturas sobre as frutíferas de clima tropical e possibilitar o desenvolvimento de novas variedades, mais tolerantes, simularam-se geadas em câmaras frigoríficas para a determinação da temperatura letal de diferentes plantas frutíferas tropicais. Os resultados permitiram classificar as espécies em três grupos: Grupo I - moderada tolerância (-4°C): condessa (Annona reticulata); goiaba (Psidium guajava); acerola (Malpighia glabra) e abacate (Persea americana) var. Geada; Grupo II - média tolerância (-5°C): conde (A. squamosa); araticum-mirim (Rollinea spp.); anona-do-brejo (A. glabra); falsa-gravioleira (A. montana); araticum-de-folha-miúda (R. ermaginata) e maracujá-amarelo (Passiflora edulis f....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Frutíferas tropicais; Temperatura letal; Geada.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200004

Influência da aplicação e do efeito cumulativo de boro nas características agronômicas e propriedades tecnologicas da fibra do algodoeiro
Provedor de dados: 53
Autores: Sabino,Nelson Paulieri; Silva,Nelson Machado da; Kondo,Julio Isac; Gondim-Tomaz,Rose Marry Araújo.
Avaliou-se a influência da aplicação de doses de boro sobre características agronômicas e propriedades tecnológicas da fibra de algodão em catorze ensaios regionais desenvolvidos no Estado de São Paulo, em 1979-86. Deles, selecionou-se o de Guaíra (SP), cujo caráter de longa duração (1984-93) permitiu o estudo do seu efeito cumulativo. Instalou-se tal ensaio em gleba de latossolo roxo distrófico, argiloso, anteriormente cultivada com milho e leguminosas e, para tanto, corrigida no aspecto de acidez e adubada com NPK. Adotou-se, para todos os ensaios, o delineamento de quadrado latino com seis repetições. O boro foi aplicado anualmente no sulco de semeação, nas seguintes doses: 0; 0,2; 0,4; 0,8; 1,6 e 3,2 kg/ha de B na forma de bórax (11% de B), em mistura...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Boro; Cumulação; Estudo regional; Ensaio de longa duração; Características agronômicas c propriedades tecnológicas da fibra de algodão.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100021

Teores de gordura e acidos graxos de clones de cacau nas condições do Vale do Ribeira (SP)
Provedor de dados: 53
Autores: Tucci,Maria Luiza Sant'Anna; Abreu,Mônica Ferreira de; Coral,Fausto Joaquim; Futino,Ana Maria; Alfonsi,L Rogério Remo; Saes,Luiz Alberto.
O Estado de São Paulo é uma das regiões em que se cultiva o cacaueiro (Theobroma cacao L.) mais afastadas do equador, com características climáticas distintas daquelas registradas nas regiões tradicionais de cultivo. A manteiga de cacau apresenta características físico-químicas peculiares, estreitamente relacionadas aos teores dos ácidos graxos que a constituem, os quais são influenciados pelas condições climáticas, especialmente a temperatura do ar. No presente trabalho, caracterizaram-se treze genótipos de cacau, da coleção do Instituto Agronômico, em Pariquera-Açu a 24°43' S, 47°53' W e 25 m de altitude, com base no teor de gordura e na composição em ácidos graxo. Os clones estudados foram os seguintes: SCA 6, SCA 12, IAC 1, ICS 39, ICS 60, ICS 95,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cacau; Theobroma cacao L.; Gordura; Ácidos graxos; Manteiga de cacau.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200001

Hábito de crescimento de Colletotrichum gossypii e C. gossypii var. Cephalosporioides em sementes de algodoeiro
Provedor de dados: 53
Autores: Tanaka,Maria Aparecida de Souza; Menten,José Otavio Machado; Machado,José da Cruz.
Observações sobre o hábito de crescimento de Colletotrichum gossypii e C. gossypii var. cephalosporioides em sementes de algodoeiro, inoculadas artificialmente e incubadas a 20-22°C durante cinco a sete dias, evidenciaram as seguintes características: (a) em raízes: acérvulos isolados ou em grupos, massa conidial cor branco-suja, alaranjada ou salmão (mais freqüente), setas marrom-escuras, muitas vezes encobertas pela matriz gelatinosa; conídios produzidos também no micélio aéreo ou nas extremidades das setas, onde ficam aderidos, formando pequenos aglomerados; (b) na superfície das sementes: conídios produzidos nos ápices de setas que emergem diretamente do tegumento, ficando aderidos uns aos outros, formando cachos, semelhantes a cadeias, que são vistos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colletotrichum; Antracnose; Ramulose; Algodoeiro; Sementes.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100011

Efeito da reação do solo no zinco extraído pelas soluções de dtpa e Mehlich-1
Provedor de dados: 53
Autores: Abreu,Cleide Aparecida de; Van Raij,Bernardo.
A análise do solo é uma ferramenta eficiente para avaliar a disponibilidade de Zn, desde que seja escolhido adequadamente o processo de extração. Neste trabalho, desenvolvido em casa de vegetação, em Campinas, em 1993, avaliou-se a influência da calagem no Zn extraível do solo, usando-se o milho como planta-teste. Utilizaram-se amostras de cinco solos, sendo duas de latossolo vermelho-amarelo, uma de latossolo húmico, uma de latossolo roxo e uma de terra roxa estruturada, as quais receberam cinco doses de calcário. Antes e depois do cultivo do milho, retiraram-se amostras de solos para análise de Zn, usando-se os extratores DTPA e Mehlich-1. Na fase inicial, as plantas de milho apresentaram sintomas de deficiência de Zn, caracterizados por uma coloração...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Milho; Zinco; Micronutriente; Análise do solo; Calagem.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200022

Indução de estruturas embriogênicas em tecidos de rizoma e pseudocaule de bananeira
Provedor de dados: 53
Autores: Domingues,Edson Tobias; Tulmann Neto,Augusto; Mendes,Beatriz M. Januzzi.
Tecidos de rizoma e pseudocaule de bananeira (Musa spp.), de plântulas micropropagadas, dos cultivares Maçã, Nanicão e GN-60 foram utilizados para indução de estruturas embriogênicas. Explantes obtidos desses tecidos foram cultivados em meio de cultura, segundo Schenk &amp;amp; Hildebrandt, com vitaminas de Staba em concentrações modificadas por Novak et al., acrescido do regulador de crescimento Dicamba, nas concentrações de 0; 2,0; 3,5 e 6,63 mg/L. A formação de tecidos com capacidade embriogênica (calos e estruturas globulares) foi observada em tecidos localizados próximo ao ápice meristemático, para os três cultivares testados. A partir dessas estruturas, foram obtidas suspensões celulares que deram origem a estruturas semelhantes a embriões somáticos,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bananeira; Embriogênese somática; Dicamba; Micropropagação.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100001

Efeito da frequência de capinas na produção do cafeeiro
Provedor de dados: 53
Autores: Toledo,Sérgio Vasco de; Moraes,Mário Vieira de; Barros,Inácio de.
Foram estudados quatro intervalos entre capinas manuais com enxada em cafezais e uso de herbicidas, e seu efeito sobre a produção, de 1959 a 1973. Os tratamentos foram: intervalos entre capinas de 15, 30, 45 e 60 dias, e aplicação de herbicidas (três vezes ao ano). Os resultados mostraram não haver diferenças entre a capina manual e a química na produção do cafeeiro; o intervalo de 45 dias entre capinas foi o que mais favoreceu a produção do cafeeiro, além de ser o mais econômico. O grande desenvolvimento do mato entre o 45.° e o 60.° dia de intervalo entre capinas aumentou bastante o custo da capina posterior. Houve grande absorção de PO4 pelas plantas invasoras na fase final de desenvolvimento, uma vez que, aos 60 dias, o mato encontra-se florescido e/ou...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Café; Tratos culturais; Controle do mato.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200017

Caracterização tecnológica de caules de quatro variedades de mandioca como fonte de fibras celulósicas para papel
Provedor de dados: 53
Autores: Azzini,Anisio; Gondim-Tomaz,Rose Marry Araújo; Costa,Antonio Alberto; Valle,Teresa Losada.
No presente estudo, procedeu-se à caracterização tecnológica dos caules de quatro variedades de mandioca (Manihot esculenta Crantz) - IAC 12.829, Branca de Santa Catarina, Roxinha ou Mico e Fibra - como fonte de fibras celulósicas para a produção de celulose e papel. Os resultados mostraram que os rendimentos em fibras celulósicas dos caules de mandioca variaram de 239,7 a 317,6 g/kg. As variedades Fibra e Branca de Santa Catarina, respectivamente, foram as que apresentaram o menor (18,2 g/kg) e o maior (35,0 g/kg) teor de fração medular. As frações lenhosas do caule forneceram fibras mais curtas (0,77 a 0,96 mm) que as liberianas (1,71 a 2,61 mm). As relações entre as dimensões das fibras indicaram valores adequados à produção de celulose e papel com boas...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Manihot esculenta Crantz; Rendimento em fibras celulósicas; Dimensões de fibra.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200014

Palha de cana-de-açúcar como matéria-prima na obtenção de fibras celulósicas para papel
Provedor de dados: 53
Autores: Azzini,Anisio; Zimback,Leo; Gondim-Tomaz,Rose Marry Araújo.
No presente estudo, procedeu-se à caracterização morfológica das fibras celulósicas obtidas a partir da palha de cana-de-açúcar. Esse material, classificado como um resíduo fibroso, apresentou comprimento médio (1,24 mm) intercalado das fibras do eucalipto (1,0 mm) e do Pinus (4,0 mm), principais fontes de matérias-primas celulósicas. Para as demais dimensões da fibra, os valores médios obtidos foram de 4,33, 4,15 e 12,80 µm, respectivamente, para a espessura da parede celular, diâmetro do lume e largura da fibra. Embora os rendimentos em fibras, tanto no processo ácido (34,63%) como no básico (33,97%), tenham sido relativamente baixos, esse material, pelas características micrométricas das fibras, pode ser utilizado na obtenção de celulose e papel, para...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Palha de cana-de-açúcar; Resíduo agrícola; Fibras celulósicas.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100017

Identificação de parentais e híbridos entre Vitis vinifera e Vitis rotundifolia utilizando polimorfismo enzimático e marcador RAPD
Provedor de dados: 53
Autores: Sawazaki,Haiko Enok; Pommer,Celso Valdevino; Passos,Ilene Ribeiro Da Silva; Terra,Maurilo Monteiro; Pires,Erasmo José Paioli.
Identificaram-se parentais e híbridos entre Vitis vinifera (videiras comuns) e V. rotundifolia (muscadínias), utilizando-se o polimorfismo enzimático e marcador RAPD (Random Amplified Polymorphic DNA). Os sistemas GOT (glutamato-oxalo-acetato-transaminase), IDH (isocitrato desidrogenase) e PGI (fosfoglucose isomerase) diferenciaram a muscadínia, sendo observadas cinco aloenzimas para o GOT, duas para o LAP (leucina aminopeptidase) e quatro para o EST (esterase). Os sistemas PGI e IDH apresentaram-se como diméricos com o fenótipo de quatro aloenzimas em duas regiões e três em uma região respectivamente. O marcador RAPD apresentou polimorfismo que permitiu a diferenciação entre todos os cultivares. Os dendrogramas UPGMA (unweighted pair-group method with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Videira; Melhoramento; Polimorfismo enzimático; RAPD; Resistência; Hibridação.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200003

Ocorrência e sintomas da mancha de Ascochyta em feijão-vagem
Provedor de dados: 53
Autores: Tanaka,Maria Aparecida de Souza; Ito,Margarida Fumiko; Dudienas,Christina; Yuki,Valdir Atsushi.
A mancha de ascochita (Ascochyta phaseolorum Sacc.) foi identificada como uma das principais doenças do feijão-vagem (Phaseolus vulgaris L.), na região de Itatiba (SP), em levantamento realizado de abril de 1991 a março de 92. Seus sintomas são manchas foliares arredondadas, tipicamente zonadas e de tamanho variável, necrosando, às vezes, extensas áreas do limbo e provocando desfolha prematura. Associado a esse sintoma foliar, o patógeno pode causar lesões nas hastes, pecíolos e vagens, assumindo proporções severas. As lesões necróticas das hastes podem estrangula-las e provocar a morte da planta acima da região afetada. Nas vagens, as lesões tendem a ser circulares e zonadas, como as das folhas, porém os anéis concêntricos são menos evidentes....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feijão-vagem; Doenças; Ascochyta phaseolorum Sacc.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200009

Micropropagação de cebola a partir de bulbinhos induzidos in vitro
Provedor de dados: 53
Autores: Rodrigues,Benedita Maria; Pinto,José Eduardo Brasil P.; Maluf,Wilson Roberto; Souza,Clóvis Maurílio de.
Visando determinar um método para micropropagação a partir de bulbinhos in vitro, de cultivares de cebola (Allium cepa L.), foram realizados três experimentos, avaliando-se a influência do 6-benzilaminopurina (BAP) x ácido naftalenoacético (ANA) e posição do explante no meio de cultura, a influência de bulbinhos desenvolvidos em diversas concentrações de sacarose e o efeito do diâmetro dos bulbinhos sobre a taxa de multiplicação in vitro. Pelos resultados, a posição vertical dos explantes mostrou maior tendência para porcentagem de regeneração nos cultivares Pira Ouro e Pirana Precoce. 0 efeito das concentrações de fitorreguladores na porcentagem de regeneração não foi verificado para o 'Pira Ouro', enquanto para o 'Pirana Precoce', porcentagem mais...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cebola; Allium cepa L.; Cultura de tecidos; Micropropagação.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100003

Efeito de diferentes concentrações do meio MS, nitrogênio e sacarose na micropropagação de crisântemo 'orange reagen'
Provedor de dados: 53
Autores: Oliveira,Patrícia Duarte de; Pasqual,Moacir; Paiva,Renato.
Realizaram-se experimentos objetivando estabelecer concentrações satisfatórias do meio básico a ser utilizado, Murashige e Skoog (MS), de nitrogênio e de sacarose para a propagação "in vitro" de crisântemo (Dendranthema grandiflora Tzvelev.) cv. Orange Reagen. Testaram-se as concentrações 0, 25, 50, 75, 100, 125 e 150% do meio MS combinadas com 0; 0,75; 1,5; 3,0; 6,0 e 12,0% de sacarose. Num segundo experimento, as concentrações 0, 25, 50, 75, 100, 125 e 150% de nitrogênio (em relação ao MS) foram testadas em combinação com as mesmas concentrações de sacarose. Observou-se melhor desenvolvimento de brotos em meios com concentrações entre 50 e 150%, em relação ao MS, combinados com 6% de sacarose. Na concentração de 50% do MS, o tamanho dos brotos obtidos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cultura de tecidos; Crisântemo; Dendranthema grandiflora Tzvelev.; Meio MS; Nitrogênio; Sacarose.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100002

Suscetibilidade de oito cultivares de bananeira à sigatoka-amarela na região de Marília (SP)
Provedor de dados: 53
Autores: Teixeira,Luiz Antonio Junqueira; Ribeiro,Ivan José Antunes; Foltran,Dulcinéia Elizabete; Zamariolli,Luís Eduardo Rissato.
A suscetibilidade de oito cultivares de bananeira à sigatoka-amarela (Mycosphaerella musicola) foi avaliada em um experimento de campo, na região de Marília (SP). Três cultivares pertenciam ao Grupo AAA ('Nanicão', 'Nanicão Jangada' e 'Grande Naine') e cinco, ao AAB ('Prata', 'Enxerto', 'Maçã', 'Mysore' e 'Prata Zulu'). O experimento foi implantado em fevereiro de 1992 e, durante os três primeiros anos, não foi feito controle de sigatoka. A suscetibilidade dos materiais foi estimada mediante avaliações em três épocas: março de 93, abril e julho de 94. Na primeira avaliação, foi contado o número de manchas na segunda folha e, nas outras, foram atribuídas notas de acordo com a intensidade dos sintomas. Os cultivares foram agrupados em três classes: altamente...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Resistência a doenças; Musa sp.; Mycosphaerella musicola Leach; Cercospora musae Zimm.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100009

Caracterização botânica de cultivares de morangueiro
Provedor de dados: 53
Autores: Queiroz Voltan,Rachel Benetti; Mendaçolli,Sigrid Luiza Jung; Passos,Francisco Antonio; Santos,Rui Ribeiro dos.
Foi realizado um estudo de caracterização botânica em seis cultivares de morangueiro (Fragaria X ananassa Duch.) quatro desenvolvidos no Brasil - 'Campinas (IAC-2712)', 'Guarani (IAC-5074)', 'AGF 080' e 'IAC Princesa Isabel' - e dois introduzidos - 'Reiko', do Japão, e 'Sequóia', dos Estados Unidos - visando sua distinção taxonômica. Os experimentos foram desenvolvidos na Estação Experimental de Monte Alegre do Sul (SP) durante os anos agrícolas de 1992/93. Os caracteres morfológicos que se mostraram úteis na diferenciação dos seis cultivares foram os seguintes: tipo de planta; número de folíolos; coloração da folha; razão entre o comprimento e a largura dos folíolos medianos; ângulo da base do limbo do folíolo mediano; comprimento das estipulas; posição...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragaria X ananassa Duch.; Morangueiro; Caracterização botânica.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100004

Discriminação entre lotes de sementes de grão-de-bico mediante teste de envelhecimento artificial
Provedor de dados: 53
Autores: Maeda,Jocely Andreuccetti; Wutke,Elaine Bahia.
Sementes de onze lotes de grão-de-bico (Cicer arietinurn L.) foram submetidas ao teste de envelhecimento artificial, utilizando-se a temperatura de 42°C e aproximadamente 100% de umidade relativa por períodos de 0, 24, 48, 72 e 96 horas de exposição, na tentativa de melhor discriminar os lotes quanto ao seu nível de vigor. 0 período de 96 horas foi excessivo para a semente de grão-de-bico; o de 48 horas também se mostrou ineficiente para a espécie. Os tempos de 24 e 72 horas classificaram os lotes no mesmo número de níveis de vigor; entretanto, recomenda-se o maior período, uma vez que os lotes que apresentaram germinação acima de 82% foram mais bem discriminados quando se utilizaram 72 horas de câmara de vigor.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Grão-de-bico; Cicer arietinum L.; Sementes; Envelhecimento artificial; Vigor.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100015

Manutenção da qualidade e aumento da longevidade floral de crisântemo cv. White polaris
Provedor de dados: 53
Autores: Flórez-Roncancio,Victor Julio; Castro,Carlos Eduardo Ferreira de; Demattê,Maria Esmeralda Soares Payão.
0 objetivo do trabalho foi determinar o melhor tratamento pós-colheita para manutenção floral e aumento da longevidade de crisântemo de maço do tipo pompom (Dendranthema grandiflorum (Ramat.) S. Kitamura) cv. White Polaris. Estabeleceu-se como ponto de colheita o momento em que as hastes apresentavam três inflorescências apicais com as pétalas externas em ângulo de 45° em relação à horizontal. Durante o ensaio em laboratório, as hastes, colhidas em estufa de produção comercial, após totalmente imersas em água de torneira, à sombra, durante três horas, foram cortadas sob água na base do caule entre 50 e 60 cm. As hastes foram distribuídas nos diferentes tratamentos de "pulsing" durante 24 horas, com luz contínua de 1.500 lux, 60 a 90% de umidade relativa do...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crisântemo; Pós-colheita; Germicidas; Inibidores de etileno.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200015

Anormalidades de tangerineiras 'poncã', no estado de Minas Gerais, provocadas por deficiência de boro
Provedor de dados: 53
Autores: Quaggio,José A.; Rossetti,Victoria; Chagas,Cesar M.
Em 1993 foi apresentado, no Congresso Brasileiro de Fruticultura, uma comunicação sobre anormalidades em tangerineiras 'Poncã', com suspeita de "greening", doença causada por bactérias não identificadas, devastadora da citricultura e ainda não assinalada no País. Os autores do presente trabalho visitaram o pomar com o problema no município de Perdões (MG) e notaram que praticamente todas as plantas do talhão apresentavam anomalias diversas. Os frutos mostravam-se normalmente pequenos, endurecidos, com sementes malformadas, casca espessa, o albedo com abundância de bolsas de goma, e caíam prematuramente. Nos ramos, havia morte da gema apical, poucas brotações novas, folhas onduladas com nervuras salientes e algumas com clorose no ápice do limbo. Por esses...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tangerineira 'Poncã'; Greening; Deficiência de boro.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100020

Avaliação da resistencia a ferrugem tropical em linhagens de milho
Provedor de dados: 53
Autores: Lima,Marlene; Paterniani,Maria Elisa Ayres Guidetti Zagatto; Dudienas,Christina; Siqueira,Walter José; Sawazaki,Eduardo; De Sordi,Guido.
Avaliaram-se 440 linhagens endogâmicas de milho do Instituto Agronômico de Campinas, obtidas a partir de diversas populações, quanto à severidade da ferrugem tropical, causada por Physopella zeae, em condições naturais de infecção. Foram instalados 22 experimentos em blocos ao acaso com duas repetições, em 1993/94, em Ribeirão Preto (SP) e utilizados como testemunhas resistente e suscetível os híbridos Z 8568 e P 3069 respectivamente, incluídos de forma intercalar. A avaliação foi realizada aos 30 dias após o florescimento, mediante uma escala de notas de 1 a 9, correspondendo a 0%; 1%; 2,5%; 5%; 10%; 25%; 50%; 75% e &gt;75% de área foliar afetada. Todas as populações estudadas apresentaram variabilidade quanto à resistência a P. zeae, indicando que a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Milho; Linhagens endogâmicas; Ferrugem tropical.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200010

Avaliação de cultivares de mandioca de mesa no Vale do Ribeira (SP)
Provedor de dados: 53
Autores: Lorenzi,José Osmar; Saes,Luis A.; Sakai,Mauro; Ribeiro,Ivan J. A.; Lourengao,André L.; Monteiro,Domingos A.; Peressin,Valdemir A.; Godoy Junior,Gentil.
O presente trabalho é o resultado final de avaliação dos melhores clones de mandioca de mesa, selecionados no Vale do Ribeira (SP), a partir de uma base genética de 306 cultivares procedentes do banco de germoplasma do Instituto Agronômico. Foram desenvolvidos três ensaios de competição, em blocos ao acaso com doze tratamentos (cultivares) e quatro repetições, na Estação Experimental de Pariquera-Açu, nos anos agrícolas 1989/90, 1990/91 e 1991/92. Os resultados mais relevantes mostraram que: (a) quanto à produção de raízes, os cultivares tiveram comportamento diferenciado em relação aos diferentes anos agrícolas. Apesar dessa interação, o 'IAC 576-70' (34,3 t/ha) mostrou-se, em média, mais produtivo que os demais, não diferindo do 'IAC 289-70' e do 'SRT...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mandioca; Manihot esculenta Crantz; Cultivares de mesa; Produção de raízes; Qualidade culinária.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100018

Resposta de cultivares de milho a zinco em solução nutritiva
Provedor de dados: 53
Autores: Furlani,Angela Maria Cangiani; Furlani,Pedro Roberto.
Este trabalho, desenvolvido em solução nutritiva, em casa de vegetação, no Centro Experimental de Campinas, Instituto Agronômico, objetivou definir parâmetros para avaliação e diferenciação de cultivares de milho quanto à exigência em zinco. Desenvolveram-se 24 cultivares durante 30 dias em solução nutritiva completa, com dois níveis de zinco (0,125 e 0,350 mg/L de Zn). O experimento seguiu o delineamento em blocos ao acaso, com parcelas subdivididas, com duas repetições por parcela e quatro plantas de cada cultivar por parcela. Os níveis de zinco ocuparam as parcelas e os cultivares, as subparcelas. Determinaram-se as seguintes variáveis: altura de planta, produção de massa seca da parte aérea, teores e conteúdos de zinco na parte aérea. Observaram-se...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Milho; Cultivares; Deficiência de zinco; Solução nutritiva.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200023

Influencia de diferentes especies de fungo micorrizico arbuscular no desenvolvimento do crisântemo
Provedor de dados: 53
Autores: Silveira,Adriana Parada Dias da; Lima,Ana Maria Liner Pereira.
Com o objetivo de verificar o desenvolvimento e florescimento do crisântemo (Dendranthema grandiflora) na presença de micorriza arbuscular, foi instalado, em casa de vegetação, um experimento, empregando-se os fungos Gigaspora margarita, Glomus leptotichum, Glomus macrocarpum e Scutellospora heterogama. Utilizou-se terra roxa estruturada, da Série Luiz de Queiroz, esterilizada (por autoclavagem) e não esterilizada. No florescimento, colheram-se as plantas e determinaram-se a altura, a matéria seca da parte aérea, a matéria fresca da raiz, o teor de P e K na parte aérea, a colonização micorrízica e o número de esporos do fungo micorrízico. O desenvolvimento e o florescimento foram favorecidos pela inoculação de G. leptotichum e G.macrocarpum, quando as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Micorriza arbuscular; Fungo micorrízico; Inoculação; Crisântemo.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100023

Flutuação populacional de Enneothrips flavens moul. em cultivares de amendoim
Provedor de dados: 53
Autores: Gabriel,Dalva; Novo,José Poleze Soares; Godoy,Ignácio José de; Barboza,João Pedro.
Com o objetivo de verificar a flutuação populacional de tripes em cultivares de amendoim, foram desenvolvidos ensaios com os cultivares IAC-Poitara, IAC-Oirã, IAC-Tupã, IAC-Caiapó, IAC-Jumbo, Botutatu e Tatu, na Estação Experimental de Campinas (Instituto Biológico), nas safras de 1992/93 e 1993/94. Na de 1992/93, foram realizados onze levantamentos e na de 1993/94, oito. A amostragem constituiu na coleta de dez folhas (40 folíolos) fechadas, por parcela, para a contagem de ninfas e adultos. Na safra 1992/93, os cultivares IAC-Caiapó e IAC-Jumbo apresentaram as menores infestações, com média de 1,4 e 1,9 tripes por folíolo respectivamente. Em 1993/94, esses cultivares também apresentaram as menores médias, 2,7 e 3,2 tripes por folíolo e não diferiram do...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amendoim; Cultivares; Tripes.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200007

Densidade de plantio associada ao uso de regulador de crescimento na cultura do algodoeiro
Provedor de dados: 53
Autores: Cia,Edivaldo; Alleoni,Luis Reynaldo Ferracciu; Ferraz,Carlos Antonio Menezes; Fuzatto,Milton Geraldo; Kondo,Julio Isao; Carvalho,Luiz Henrique; Chiavegato,Ederaldo José; Sabino,Nelson Paulieri.
Estudaram-se três densidades de plantio (4, 8 e 16 plantas por metro) em algodoeiro, utilizando-se a variedade IAC 18, com espaçamento de 1,0 m entre as linhas, com e sem aplicação do regulador de crescimento cloreto de clorocolina (CCC), na dose de 50g ingrediente ativo por hectare, aos 60-70 dias após a emergência das plantas, durante quatro anos agrícolas (1976/77 a 79/80), nas seguintes localidades paulistas: Leme, Sumaré e Araras. Nos locais onde o algodoeiro apresentou porte elevado (&gt;140cm), a produção foi menor na maior densidade de plantio (16 plantas por metro) e o regulador promoveu aumento significativo de produção. Quando o algodoeiro foi menor do que 140cm, a produção foi menos afetada, embora significativamente, pela densidade de plantio,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Algodão; Densidade de plantio; Regulador de crescimento; Altura de plantas; Características tecnológicas da fibra.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200016

Efeito de inseticidas sistêmicos aplicados no solo na produção do feijoeiro
Provedor de dados: 53
Autores: Leite,Germano Leao Demolin; Picanço,Marcelo; Madeira,Nuno Rodrigo; Zanuncio,José Cola.
Este trabalho objetivou o estudo dos componentes de produção na cultura do feijoeiro (Phaseolus vulgaris L.), quando se utilizaram os inseticidas sistêmicos Aldicarb 150 G (6 kg/ha) e Fosthiazate 100 G (10, 20, 30 e 40 kg/ha), além da testemunha. A pesquisa foi desenvolvida na Universidade Federal de Viçosa, Viçosa (MG), em abril-julho de 1994. O delineamento experimental foi em blocos casualizados com quatro repetições, sendo a unidade experimental constituída de 500 plantas. Avaliaram-se altura das plantas, número de nós, mortalidade de plantas, número de flores, vagens, óvulos e grãos danificados (identificando-se os causadores dos danos). Foi estimada a produtividade média de cada tratamento, as perdas ocorridas e suas causas. A partir desses dados,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phaseolus vulgaris L.; Tabela de vida; Etiella zinckenella; Aldicarb; Fosthiazate.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200012

Calagem e adubação nitrogenada e potássica para o cafeeiro
Provedor de dados: 53
Autores: Van Raij,Bernardo; Costa,Waldir Marques da; Igue,Toshio; Serra,José Renato Miranda; Guerreiro,Gustavo.
A calagem do cafeeiro é realizada com base em resultados da análise de solo de amostras coletadas na projeção da copa, a parte mais acidificada do terreno devido à aplicação de adubos nitrogenados. Isso tem suscitado dúvidas, por existirem partes da área do solo menos ácidas em cafezais, mormente nas entrelinhas, onde ocorre o acúmulo de bases em vista da arruação. Outro problema da cafeicultura é o uso rotineiro de fórmulas com altos teores de N e de K, sem atentar para as reais necessidades da cultura. Neste trabalho, estudaram-se a calagem e as adubações nitrogenada e potássica, em dois cafezais em produção, os quais vinham sendo normalmente calcariados e adubados. Os dois ensaios foram desenvolvidos em solo podzolizado-de-Lins-e-marïlia do município de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Café; Calagem; Adubação; Nitrogênio; Potássio; Análise de solo; Diagnose foliar.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200021

Determinação de um índice de qualidade de agua para algumas culturas irrigadas em São Paulo
Provedor de dados: 53
Autores: Dotto,Silmara Eloisa; Santos,Rozely Ferreira dos; Singer,Eugênio da Motta.
Índices de qualidade de água têm sido amplamente usados como ferramenta para tomada de decisão em planejamento, mas, de modo geral, são dirigidos a qualificar água de abastecimento público. Reconhece-se, no entanto, a necessidade de avaliar a qualidade de água voltada à irrigação, de maneira a evitar ou minimizar impactos sobre a produção de culturas e saúde da população. O presente trabalho objetivou adaptar a formulação de um índice de qualidade de água (IQA) para um índice de qualidade de água para culturas irrigadas (IQAI), de modo a identificar condições que possam ser relevantes ao planejamento de recursos hídricos para irrigação. Obteve-se tal índice mediante agregação de parâmetros de qualidade para irrigação, utilizando a técnica de hierarquização...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rio Piracicaba; Qualidade de água; Índice; Irrigação.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100025

Tratamentos pré-germinativos de sementes da palmeira inajá
Provedor de dados: 53
Autores: Martins,Cibele Chalita; Silva,Walter Rodrigues da; Bovi,Marilene Leao Alves.
O objetivo da pesquisa foi buscar técnicas promotoras ou aceleradoras da germinação de sementes da palmeira inajá (Maximiliana regia Mart.), espécie produtora de palmito. Para tanto, frutos verdes e maduros (com e sem polpa) foram submetidos a tratamentos de vernalização, KNO3, H2SO4, H2O-80°C, retirada do opérculo e armazenamento. Foi concluído que, entre os procedimentos pré-germinativos, o despolpamento dos frutos pode ser indicado para acelerar e elevar a germinação. Paralelamente, foi observado que sementes de frutos maduros despolpados são mais negativamente afetadas no armazenamento do que as dos frutos maduros não despolpados.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Maximiliana regia Mart.; Palmeira; Sementes; Tratamentos pré-germinativos.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100014

Correlação entre leituras de clorofila e níveis de nitrogênio aplicados em feijoeiro
Provedor de dados: 53
Autores: Furlani Junior,Enes; Nakagawa,Julio; Bulhoes,Luciano José; Moreira,José Aluisio Alves; Grassi Filho,Hélio.
Foram realizados dois ensaios, sendo um em solução nutritiva e outro em solo, utilizando seis níveis de nitrogênio (28, 56, 84, 112, 140 e 168 mg/L de N) a fim de ajustar as leituras diretas, feitas nas folhas de feijoeiro, com um clorofilômetro (Minolta SPAD-501), aos níveis crescentes de nitrogênio e ao seu teor nas folhas. Avaliaram-se os parâmetros: área foliar; massas dos materiais verde e seco; teor de clorofila; produção de grãos e teores de N, Ca, Mg e S. Todos esses dados, mais as leituras do aparelho, foram correlacionados entre si e com os níveis de N aplicados. As correlações positivas entre as leituras e os níveis de N fornecidos (R = 0,86) e entre as leituras e os teores de N nas folhas (R = 0,75) indicam que há perspectivas favoráveis quanto...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Clorofila; Nitrogênio; Feijão; Clorofilômetro.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100022

Desenvolvimento de cultivares e espécies de pereira enxertados em plântulas de Taiwan Nashi-C na fase de formação de mudas
Provedor de dados: 53
Autores: Barbosa,Wilson; Campo-Dall'Orto,Fernando Antonio; Ojima,Mario; Martins,Fernando Picarelli; Castro,Jairo Lopes de.
Pesquisou-se, no Instituto Agronômico (IAC), em julho-dezembro de 1993, o desenvolvimento inicial da pereira 'Okussankichi' (Pyrus serotina Rehder), enxertada em plântulas de Taiwan Nashi-C (P. calleryana Decne.) nos diâmetros de 4, 6, 8, 10 e 12 mm. Pesquisou-se, ainda, o comportamento de outras oito pereiras em enxertia interespecífica em plântulas de doze meses. Pôde-se observar, por meio da enxertia por garfagem do tipo inglês simples, o adequado comportamento das mudas na fase de junção dos tecidos cambiais, sem que nenhum sintoma de incompatibilidade inicial fosse detectado. As espécies e cultivares estudados apresentaram cerca de 95% de pegamento dos enxertos, comprovado pelas brotações vigorosas emitidas após 45 dias da enxertia. Os porta-enxertos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pereira; P serotina Rehder; P. communis L; Enxertia interespecífica; Diâmetro de porta-enxerto; Compatibilidade de enxertia; Espécies e cultivares.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200020

Efeito da torção na regularidade e na quantidade de neps em fios de algodão de títulos Ne20, Ne30 e Ne40
Provedor de dados: 53
Autores: Sabino,Nelson Paulieri; Kondo,Julio Isao; Gondim-Tomaz,Rose Marry Araújo.
Estudaram-se a regularidade e a quantidade de "neps" em fios de algodão de títulos Ne20, Ne30 e Ne40 para diferentes coeficientes de torção, representados pelas constantes 3,4, 3,6, 3,8, 4,0, 4,2, 4,5 e 4,7. Utilizaram-se, para tanto, três variedades paulistas de algodoeiro: IAC 16, IAC 13-1 e IAC 17. Obtiveram-se a regularidade dos fios e a quantidade de "neps" por meio dos resultados fornecidos, respectivamente, pelo integrador e pelo contador de imperfeições, ambos da linha Uster Evenness Tester. Com base nos resultados, concluiu-se que, ao aumento do número de torções do fio, correspondeu o crescimento do número de "neps", o qual se intensificou, sucessivamente, nos títulos Ne20, Ne30 e Ne40, e, notadamente, nas variedades com tendência acentuada para...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fios de algodão; Torção; Regularidade; Neps.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100016

Influência da brisa terra-mar no período de saturação da umidade do ar no interior de dois seringais de cultivo em Ubatuba(SP)
Provedor de dados: 53
Autores: Pezzopane,José Eduardo Macedo; Ortolani,Altino Aldo; Godoy Jr.,Gentil; Pezzopane,José Ricardo Macedo.
Avaliou-se, em Ubatuba(SP), a influência da brisa terra-mar no número de horas com umidade relativa igual ou superior a 90% (NHUR &gt; 90%) no interior de dois seringais [Hevea brasiliensis (Willd. ex Adr. de Juss) Müell Arg.] adultos: um próximo à praia (800 m) e outro distante 5.000 m. Para o período estudado, os resultados demonstraram uma redução significativa do NHUR &gt; 90%, 50% em média, no seringal próximo à praia. A diferença ficou mais evidente, 71,4% em média, quando se analisaram apenas os dias não chuvosos, a fim de desconsiderar a saturação atmosférica devida à chuva. Os resultados deste estudo mostram que a advecção condicionada pela brisa terra-mar é fator aerodinâmico de mesoescala que interfere no início e no final da saturação da...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Umidade atmosférica; Advecção; Brisa terra-mar; Seringueira; Molhamento foliar.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100026

Extração de amido em cavacos de bambu tratados com solução diluída de hidróxido de sódio
Provedor de dados: 53
Autores: Azzini,Anisio; Gondim-Tomaz,Rose Marry Araújo.
Determinaram-se, em colmos de bambu (Bambusa vulgaris Schrad.) de um e cinco anos, os teores de amido, a fração fibrosa e o resíduo parenquimatoso em função da concentração de hidróxido de sódio (0,25, 0,50 e 0,75%), do tempo de tratamento (5, 10 e 15 horas) e do tempo de desfibramento (30, 60 e 90 segundos). 0 delineamento experimental utilizado foi um fatorial 3³. Pelos resultados, a concentração de hidróxido de sódio e o tempo de tratamento não influíram significativamente nos teores de amido, fração fibrosa e resíduo parenquimatoso. A maior quantidade de amido (75,22 g/kg) foi obtida em colmos de cinco anos no maior tempo de desfibramento (90 segundos). Com este estudo, demonstrou-se que a extração de amido é tecnicamente viável como um pré-tratamento...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bambu; Bambusa vulgaris Schrad.; Extração de amido; Tratamento químico.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200002

"Mancha-cafe" em soja: seleção para resistência e interação entre genótipos e épocas de inoculação
Provedor de dados: 53
Autores: Lourençao,André Luiz; Miranda,Manoel Albino Coelho de; Costa,Alvaro Santos.
Em condições de campo, realizaram-se seleções em linhagens de soja contra manchamento de sementes causado pelo vírus do mosaico comum da soja (VMCS). Conhecido como "mancha-café", o sintoma caracteriza-se pelo derramamento dos pigmentos do hilo da semente. Produzidas no Centro Experimental de Campinas, pertencente ao IAC, as sementes de 131 linhagens da geração F5 do cruzamento entre IAC78-2318 e 'Santa Rosa' (ambos suscetíveis ao VMCS) foram avaliadas, em 1987, quanto ao grau de manchamento, de acordo com uma escala de notas de 1 (sementes sem manchas) a 5 (sementes com tegumento quase totalmente manchado). Quatro linhagens obtiveram nota 1, enquanto a maioria recebeu nota 3. Essa distribuição de notas pode indicar que a herança da resistência ao...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Glycine max; Vírus do mosaico comum da soja (VMCS); Resistência.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100012

Caracterização do material de reserva em feijão-guandu, lablabe e mucuna
Provedor de dados: 53
Autores: Seno,Maria Silvia; Gomes,Laurecir; Cortelazzo,Angelo Luiz.
Com o intuito de caracterizar, em nível citoquímico, as principais reservas presentes em guandu, lablabe e mucuna, sementes foram fixadas e processadas para a microscopia, utilizando-se tanto métodos gerais como específicos para proteínas, lipídios, polissacarídeos neutros e ácidos, procedendo-se, à dosagem e à caracterização dessas reservas nas sementes. O amido revelou-se como principal material, seguido por proteínas e, em menor grau, por lipídios. O conteúdo de amido foi de 55% da matéria seca (MS) para guandu, 53% para lablabe e 40% para mucuna. As proteínas foram mais abundantes em lablabe, com 26% da MS, seguindo-se o guandu (19%) e a mucuna (17%). Lipídios representaram menos de 2% da MS dessas sementes, com uma quantidade maior em mucuna do que...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leguminosas; Sementes; Cajanus cajan; Lab-lab purpureum; Mucuna aterrima; Reservas.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100006

Avaliação de progênies de algodoeiro para resistência à broca-da-raiz
Provedor de dados: 53
Autores: Gridi-Papp,Imre Lajos; Cia,Edivaldo; Fuzatto,Milton Geraldo; Chiavegato,Ederaldo José; Sabino,José Carlos; Veiga,Ary de Arruda.
Com base nos resultados de seleção, obtidos pela equipe de melhoramento do algodoeiro do Instituto Agronômico (IAC), numa gleba naturalmente infestada pela broca-da-raiz, Eutinobothrus brasiliensis (Hambleton), da Estação Experimental de Tietê, em 1966-81, três índices de avaliação foram propostos para a resistência dessa planta à praga. O coeficiente de correlação simples entre as duas repetições dos testes anuais de progênies foi adotado como parâmetro para estudar a eficiência dos índices na seleção de progênies resistentes. Pelo estudo comparativo, escolheu-se, como o mais adequado, o índice obtido pela contagem de furos (galerias) observados na parte lenhosa, em corte oblíquo dos caules das plantas, feito na região do colo, no meio da parte...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broca-da-raiz; Eutinobothrus brasiliensis; Melhoramento; Índice de resistência.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100008

Análise dialélica da capacidade combinatória de cultivares de tomateiro
Provedor de dados: 53
Autores: Amaral Júnior,Antonio Teixeira do; Casali,Vicente Wagner Dias; Scapim,Carlos Alberto; Silva,Derly José Henriques da; Cruz,Cosme Damião.
Os cultivares de tomateiro (Lycopersicon esculentum Mill.) Ângela I.5100, Floradade, IPA-05, IPA-06, Jumbo e Santa Clara, e os 15 possíveis híbridos F1s foram avaliados quanto à produção de frutos comerciáveis (PFC), espessura média da polpa (EMP), número médio de lóculos por fruto (NML) e teor de sólidos solúveis (TSS), com o objetivo de identificar parentais e híbridos promissores para programas de melhoramento. A análise dialélica, com base no método de Griffing, revelou a predominância dos efeitos gênicos não aditivos para o caráter PFC, ao contrário de EMP, enquanto NML acusou equivalência para os efeitos aditivos e não aditivos. Em decorrência das estimativas da capacidade geral de combinação (Gi) os cultivares Ângela I.5100, IPA-05 e IPA-06 são...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tomateiro; Lycopersicon esculentun Mill.; Análise dialélica; Capacidade combinatória; Heterose.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100007

Caracterização morfológica de acessos de amendoim: avaliação da sensibilidade de alguns descritores
Provedor de dados: 53
Autores: Veiga,Renato Ferraz de Arruda; Nagai,Violeta; Godoy,Ignácio José de; Carvalho,Luiz Henrique; Martins,Antonio Lúcio de Mello.
Este trabalho teve por objetivo avaliar a sensibilidade de doze descritores morfológicos, utilizados na caracterização dos acessos de amendoim (Arachis hypogaea L.) do banco ativo de germoplasma (BAG) do Instituto Agronômico (IAC), quando aplicados a acessos com pouca variabilidade morfológica, a fim de verificar sua eficácia na descrição em alguns cultivares comercializados no País. Para o germoplasma estudado, adotaram-se os seguintes descritores: dimensões dos folíolos, frutos e sementes; coloração das folhas; hábito de crescimento; pigmentação do ramo e "peg"; profundidade inter-reticular, bico e constrição do fruto; coloração da semente; número de sementes por fruto e pilosidade dos ramos e folhas. Estimando-se a média (Y) com o desvio-padrão de 10%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amendoim; Arachis hypogaea L.; Banco ativo de germoplasma; Caracterização morfológica; Descritores.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100005

Seleção e hierarquização de parâmetros de qualidade de água para culturas irrigadas com o uso do Electre I e II
Provedor de dados: 53
Autores: Dotto,Silmara Eloisa; Singer,Eugênio da Motta; Santos,Rozely Ferreira dos.
Em planejamento de áreas que fazem uso de irrigação, discutem-se, comumente, parâmetros de qualidade de água, objetivando evitar ou minimizar impactos desfavoráveis sobre a produção de culturas e a saúde da população. Este trabalho contribui na seleção e classificação, em ordem de importância, de parâmetros de qualidade que estejam envolvidos com o processo de irrigação. Assim, são hierarquizados, por meio do método multicriterial Electre I e II, seis parâmetros: coliforme fecal (CF); potencial hidrogeniônico (pH); demanda bioquímica de oxigênio (DBO); cloreto (Cl); nitrogênio total (Nt) e condutividade elétrica (CE), em função de nove culturas irrigadas: tomate, batata, feijão, laranja, morango, pêssego, alface, cenoura e beterraba. Adotou-se como área de...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rio Piracicaba; Qualidade de água; Irrigação; Electre I e II.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100024

Cultivares de arroz e idade de mudas para transplantio
Provedor de dados: 53
Autores: Villela,Omar Vieira; Furlani Junior,Enes.
O presente trabalho foi desenvolvido em nível de campo, na Estação Experimental de Pindamonhangaba (SP), do Instituto Agronômico, nos anos agrícolas 91/92, 92/93 e 93/94, com o objetivo de avaliar os efeitos da utilização de mudas de arroz (Oriza sativa L.) com diferentes idades, sobre o comportamento produtivo e fenológico de cultivares de arroz irrigado recomendados para o Estado de São Paulo, com semeadura efetuada em uma única época. Utilizou-se o delineamento experimental em blocos ao acaso, no esquema fatorial com quatro repetições. Para os anos agrícolas 91/92 e 92/93, utilizaram-se os cultivares IAC 4440, IAC 100, IAC 101 e IAC 102, com mudas de 25, 32, 39, 46, 53 e 60 dias de emergência, e no ano agrícola 93/94, os cultivares IAC 100, IAC 101 e...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arroz; Cultivares; Idade de mudas; Transplantio.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200019

Seca-da-mangueira: XV. Resistência varietal a dois isolados de Ceratocystis fimbriata
Provedor de dados: 53
Autores: Rossetto,Carlos J.; Ribeiro,Ivan J.A.; Igue,Toshio; Gallo,Paulo Boller.
O objetivo deste trabalho é avaliar a resistência de 15 variedades de mangueira em relação a dois isolados do fungo Ceratocystis fimbriata Ell. &amp;amp; Halst.: o IAC FITO 4905, muito patogênico ao cultivar Jasmim, e o IAC FITO 334-1, não patogênico ao 'Jasmim'. As inoculações foram feitas no campo, em ramos a 40 cm do ápice, utilizando-se plantas com oito anos de idade, com delineamento em blocos completos ao acaso e parcelas subdivididas. Os cultivares São Quirino, Irwin, Edwards e Van Dyke foram resistentes aos dois isolados, e Glenn, Joe Welch, Zill e Haden suscetíveis. 'IAC 100 Bourbon' mostrou resistência moderada aos dois isolados e o 'Kent' comportou-se como o 'Jasmim' resistente ao isolado FITO 334-1 e suscetível ao IAC FITO 4905, podendo ser...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Mangueira; Mangifera indica L.; Ceratocystis fimbriata; Seca-da-mangueira; Resistência varictal.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100013

Avaliação agronômica e de qualidade tecnológica de genótipos de trigo com irrigação por aspersão no estado de São Paulo
Provedor de dados: 53
Autores: Felício,João Carlos; Camargo,Carlos Eduardo de Oliveira; Magno,Cristina de Paula Ribeiro dos Santos; Gallo,Paulo Boller; Pereira,José Carlos Vila Nova Alves; Pettinelli Junior,Armando.
Em experimentos com irrigação por aspersão instalados em diferentes zonas tritícolas paulistas, avaliaram-se a produtividade de grãos, as reações aos agentes causais de ferrugem-da-folha, de oídio e de helmintosporiose e a qualidade tecnológica da farinha de dezesseis genótipos de trigo em 1991-93. O genótipo TUI"S" apresentou melhor produtividade e boa adaptação nas diferentes zonas estudadas. Destacaram-se também o IAC 289, IAC 335, IAC 338, IAC 286 e IAC 60. As zonas D (Tatuí) e C (Paranapanema) apresentaram, respectivamente, a maior e a menor produção, diferindo significativamente entre si. A ocorrência da mancha foliar, causada por Helmínthosporium sp., e do oídio foi generalizada em todas as zonas no decorrer do período. De acordo com os parâmetros...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trigo; Triticum aestivum L.; Produção de grãos; Resistência às doenças; Qualidade tecnológica da farinha.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100019

Novo processo de avaliação da adstringência dos frutos no melhoramento do caquizeiro
Provedor de dados: 53
Autores: Campo-Dall'orto,Fernando Antonio; Ojim,Mario; Barbosa,Wilson; Zullo,Marco Antonio Teixeira.
Nos trabalhos de melhoramento do caqui no Instituto Agronômico, é fato comum defrontar-se com grande número de frutos para serem analisados, de diferentes amostras colhidas no estádio de maturação comercial (de vez). Todas as amostras têm que passar por prova gustativa, ao lado de análises dos parâmetros de qualidade, como as do °Brix e do pH, eis que envolvem diferentes tipos de caqui - desde os fortemente adstringentes (taninosos) até os praticamente desprovidos de tanino (doces). Nesse particular, pode-se aquilatar a dificuldade para o melhorista realizar tais testes, pois um grupo de caquis taninosos mascara o paladar de duas ou três amostras subseqüentes. Daí a necessidade de desenvolver um processo de análise indireta, a exemplo do presente, que...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diospyros kaki L.f.; Melhoramento; Tipos varietais; Processo de análise; Tanino; Cloreto férrico.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200005

Patogenicidade de Meloidogyne exigua e M. incognita raça 1 a mudas de cafeeiros
Provedor de dados: 53
Autores: Gonçalves,Wallace; Ferraz,Luiz Carlos Camargo Barbosa; Lima,Marinez Muraro Alues de; Silvarolla,Maria Bernadete.
O presente trabalho teve por objetivo avaliar os danos causados por Meloidogyne exigua e M. incognita raça 1 a mudas de cafeeiros (Coffea spp.) Coffea arabica cv. Mundo Novo (LCP 515-20) e de C. canephora cv. Robusta (C 2258). O ensaio foi desenvolvido em casa de vegetação, em vasos de um litro, contendo uma plântula cada um. Aos vinte dias após o transplante, as plântulas foram inoculadas separadamente com 0, 2.000, 4.000 e 8.000 ovos de cada nematóide. As populações dos parasitos nas raízes e alguns parâmetros de crescimento das plantas foram avaliados aos 150 dias da inoculação. Verificou-se que M. incognita raça 1 foi mais patogênica que M. exigua ao cultivar Mundo Novo. O cafeeiro C 2258 comportou-se como hospedeiro não eficiente (FR &lt; 1) de M....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Meloidogyne exigua; M. incognita raça 1; Cafeeiros; Patogenicidade.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000100010

Melhoramento da cana-de-açúcar: XI. Ensaios de clones provenientes de hibridações realizadas em 1982 e selecionados na região de Jaú (SP)
Provedor de dados: 53
Autores: Campana,Mário Percio; Alvarez,Raphael; Silva,Marcelo de Almeida; Landell,Marcos Guimarães de Andrade; Zimback,Léo; Figueiredo,Pery; Silvarolla,Maria Bernadete; Bolonhezi,Denizart.
Clones de cana-de-açúcar, provenientes de hibridações realizadas em Camamu (BA), em 1982, foram avaliados em um ensaio em terra roxa estruturada, na Usina da Barra, em Barra Bonita (SP). No ensaio, instalado em janeiro de 1987, utilizou-se o delineamento em blocos ao acaso, com quatro repetições, sendo as análises estatísticas feitas com dados médios de quatro cortes. Avaliaram-se os parâmetros: produtividade de cana e açúcar, número de colmos por 10 m, massa de um colmo, teor de sacarose (pol % cana) e de fibra e intensidade de florescimento. Além disso, estudou-se a curva de maturação em cana-planta e primeira soca. Considerando-se essas características em relação às variedades CB47-355, IAC67-112, NA56-79 e SP71-1406, utilizadas como padrões, os clones...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cana-de-açúcar; Saccharum spp.; Melhoramento genético; Avaliação de clones.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200006

Crescimento e desenvolvimento de frutos de lichia cv. Brewster
Provedor de dados: 53
Autores: Vieira,Gerival; Finger,Fernando Luiz; Agnes,Ernani Luiz.
Acompanhou-se o crescimento e desenvolvimento de frutos de lichia (Litchi chinensis Sonn.) cv. Brewster, em Viçosa (MG). Da abertura das panículas até cerca de 45 dias após o florescimento (DAF), 95% da matéria fresca total dos frutos correspondeu à soma das massas da semente e da casca. A matéria fresca dos frutos aumentou exponencialmente entre 45 e 80 DAF; observaram-se, porém, incrementos menores de matéria até o final do desenvolvimento, aos 104 DAF. Próximo ao final do ciclo de desenvolvimento do fruto, atribuiu-se 60% da matéria fresca total ao arilo, enquanto 14 e 26% corresponderam à semente e à casca respectivamente. Os frutos apresentaram maior conteúdo de sólidos solúveis totais aos 77 DAF. A acidez total foi reduzida de 6,0%, aos 45 DAF, para...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crescimento do fruto; Litchi chinensis Sonn.; Sólidos solúveis; Acidez.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200018

Modelo matemático para simulação do controle biológico da broca-da-cana com o parasitóide Trichogramma galloi: I. Modelos conceituais
Provedor de dados: 53
Autores: Ambrosano,Glaucia Maria Bovi; Stimac,Jerry Lynn; Silveira Neto,Sinval; Igue,Toshio; Nagai,Violeta.
Um modelo, compartimental e determinístico, foi desenvolvido para simular a dinâmica do sistema cana-de-açúcar-broca(Diatrea saccharalis)-Trichogramma galloi-ambiente, estruturado de modo a permitir que se estude cada parte do sistema, admitindo modificações tanto nos parâmetros como nas equações, que deverão ser realizadas com o avanço das pesquisas. Após a construção dos modelos conceituais, as descrições dos processos, ou seja, as inter-relações entre seus componentes, foram representadas em equações matemáticas e codificadas em linguagem de computador (Pascal). Utilizando dados da literatura e informações de pesquisadores da área, estimaram-se os parâmetros e determinaram-se as condições iniciais para executar o programa. A seguir, foram iniciadas as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broca-da-cana; Diatrea saccharalis; Trichogramma galloi; Modelo de simulação.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0006-87051996000200024

Cytogenetics of six Brazilian species of Psocoptera
Provedor de dados: 54
Autores: Zefa,Edison; Fontanetti,Carmem Silvia; Mesa,Alejo.
The karyotypes of the following six species of Brazilian Psocoptera are reported: Caecillius sp. (Caecillidae), Triplocania ? caudata New (Ptiloneuridae), Brachinodiscus cf. lepidus (Banks) (Psocidae), Psococerastis interrupta New (Psocidae), Ptycta nr reticulata New (Psocidae) and Trichadenotecnum sinuatum New (Psocidae). All of them had males with 2n = 17 and an XO sex determining mechanism.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cytogenetics; Psocoptera.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400011

Genotoxic activity of the insecticide Nuvacron (Monocrotophos) detected by the micronucleus test in bone marrow erythrocytes of mice and in CHO cells
Provedor de dados: 54
Autores: Peitl Jr,Paulo; Sakamoto-Nojo,Elza T.; Cólus,Ilce M. de Syllos.
The organophosphorus insecticide Nuvacron (Monocrotophos) is a very toxic agent widely utilized in Brazilian agriculture. To evaluate the clastogenic potential of this insecticide, in vivo and in vitro micronucleus (MN) assay experiments were carried out on Swiss mice and on Chinese hamster ovary (CHO) cells, respectively. Nuvacron administered at doses of 2.5 and 5.0 mg/kg induced a statistically significant increase in the frequencies of MN detected in polychromatic bone marrow erythrocytes from animals (six/group) treated ip 24 h before. Exponentially growing CHAO cells were treated continuously (16h) with Nuvacron diluted in water to final concentrations of 1, 10, 100, 200, and 400 mug/ml. Three experiments were carried out using the cytokinesis-block...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Genotoxic; Insecticide Nuvacron; Micronucleus; Bone marrow; Erythrocytes; Mice; CHO cells.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400006

Holstein white coat color and performance: phenotypic, genetic and environmental correlations
Provedor de dados: 54
Autores: Becerril,Carlos M.; Wilcox,Charles J.; Guerrero,Victor M.
Correlations of measures of percentages of white coat color, five measures of production and two measures of reproduction were obtained from 4293 first lactation Holsteins from eight Florida dairy farms. Percentages of white coat color were analyzed as recorded and transformed by an extension of Box-Cox procedures. Statistical analyses were by derivative-free restricted maximum likelihood (DFREML) with an animal model. Phenotypic and genetic correlations of white percentage (not transformed) were with milk yield, 0.047 and 0.097; fat yield, 0.002 and 0.004; fat percentage, -0.047 and -0.090; protein yield, 0.024 and 0.048; protein percentage, -0.070 and -0.116; days open, -0.012 and -0.065; and calving interval, -0.007 and -0.029. Changes in magnitude of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Holstein; Phenotypic; Genetic; Environmental.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400009

Reading the human Y chromosome: the emerging DNA markers and human genetic history
Provedor de dados: 54
Autores: Santos,Fabrício R.; Tyler-Smith,Chris.
Reading the human Y chromosome: the emerging DNA markers and human genetic history.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Human Y chromosome; DNA markers; Human genetic history.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400025

Trisomy 13 mosaicism demonstrated only in skin fibroblasts in a patient presenting psychomotor retardation, pigmentary dysplasia and some dysmorphic features
Provedor de dados: 54
Autores: Ferreira,A.P.S.; Mazzucatto,L.F.; Ramos,E.S.; Pina-Neto,J.M.
A Brazilian female infant presented delayed psychomotor development, skin pigmentary dysplasia and some dysmorphic features. Chromosome analysis from peripheral blood culture was normal, but the karyotype from skin fibroblasts revealed mosaicism for trisomy 13. This case demonstrates the relevance of performing chromosomal analysis of skin fibroblasts in patients with mental retardation, associated with pigmentary dysplasia of the skin and a normal karyotype in peripheral blood lymphocytes. To our knowledge, it is the first report of trisomy 13 demonstrated only in skin fibroblasts.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trisomy 13 mosaicism; Skin fibroblasts; Psychomotor retardation; Pigmentary dysplasia; Dysmorphic features.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400023

Transferrin polymorphism in Amazon turtle (Podocnemis expansa) stocks
Provedor de dados: 54
Autores: Teixeira,Aylton Saturnino; Jamieson,Alan; Raposo,José Carlos Paula; Vieira,Alvaro Alves.
The transferrin gene locus (Tf) was investigated in five populations of the Amazon turtle (Podocnemis expansa) sampled from five geographical areas in the Amazon region. This locus was polymorphic, showing three genotypes (Tfª Tfª, Tfª Tf b and Tf b Tf b), presumably encoded by two co-dominant alleles, Tfª and Tf b. All populations showed good genetic balance according to Hardy-Weinberg expectations, and may sustain the hypothesis of a single stock in the area investigated. The data are consistent with free flow of genes among the population samples examined.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polymorphism; Amazon turtle.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400004

Alternative procedures for parent choice in a breeding program for the common bean (Phaseolus vulgaris L.)
Provedor de dados: 54
Autores: Oliveira,L.B.; Ramalho,M.A.P.; Abreu,A. de F.B.; Ferreira,D.F.
Six common bean cultivars were crossed in diallel and the segregant populations were assessed in the F2 and F3 generations to compare methodologies for parental selection in a breeding program based on hybridization. The cultivars involved in the diallel were A 114, A 77, ESAL 686, Milionário, Carioca, and Flor de Mayo. The segregant F2 and F3 generations were assessed on the experimental campus of the Universidade Federal de Larvas, in July 1994. It was found that the cultivars differed in their general combining ability (GCA). Flor de Mayo, which belongs to the Durango race, had the largest positive GCA estimate for grain field, and the cultivars from the Mesoamerican race, Milionário and A 114, the smallest GCA estimates. For flowering, the cultivar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Breeding program; Common bean.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400014

Chromosome damage in underground coal miners: detection by conventional cytogenetic techniques and by submitting lymphocytes of unexposed individuals to plasma from at-risk groups
Provedor de dados: 54
Autores: Agostini,J.M.S.; Otto,P.A.; Wajntal,A.
Chromosome abnormalities and the mitotic index in lymphocyte cultures and micronuclei in buccal mucosa cells were investigated in a sample of underground mineral coal miners from Southern Brazil. A decreased mitotic index, an excess of micronuclei and a higher frequency of chromosome abnormalities (fragments, polyploidy and overall chromosome alterations) were observed in the miners when compared to age-paired normal controls from the same area. An alternative assay for clastogenesis in occupational exposition was tested by submitting lymphocytes from non-exposed individuals to a pool of plasmas from the exposed population. This assay proved to be very convenient, as the lymphocytes obtained from the same individuals can be used as target as well as...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromosome damage; Underground coal miners; Cytogenetic; Lymphocytes; Plasma; At-risk groups.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400021

Copper accumulation in Xanthomonas campestris pv. vesicatoria
Provedor de dados: 54
Autores: Ramos,Georgia Barros de A.; Rosato,Yoko B.
A strain of Xanthomonas campestris pv. vesicatoria showing resistance to 1.2 mM cupric sulfate was analyzed by atomic absorption spectroscopy and ESI (electron spectrophotometry imaging). Accumulation of copper was detected in the periphery of the cell membrane region, suggesting that the mechanism of copper resistance is similar to that previously described for Pseudomonas species. The ESI technique was used to detect copper in the membrane region. Copper-resistance in X. campestris pv. vesicatoria 484 is inducible and occurs by accumulation of the metal and not by efflux mechanism as has been suggested. The growth curve also showed that this system is inducible.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Copper accumulation; Xanthomonas campestris; Vesicatoria.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400002

Occurrence of Akodon cursor (Rodentia, Cricetidae) with 14, 15 and 16 chromosome cytotypes in the same geographic area in Southern Brazil
Provedor de dados: 54
Autores: Sbalqueiro,Ives José; Nascimento,André Paulo.
The karyotype of Akodon cursor (initially identified as A. arviculoides) had been reported with chromosomal numbers 14 and 15 in the South and Southeast and 16 in Northeastern Brazil. We found the three cytotypes in a region of Southern Brazil. The G-band patterns of these specimens were the same as those from southeastern and northeastern regions. Seventeen different combinations of chromosomes due to a complex rearrangement in pair 1 and pericentric inversions in pairs 2 and 3 were identified. Seven of these combinations are new to in the literature.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Akodon cursor; Chromosome cytotypes; Southern Brazil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400005

Use of RAPD-PCR to identify true hybrid plants from crosses between closely related progenitors
Provedor de dados: 54
Autores: Alzate-Marin,Ana Lilia; Baía,Gilson Soares; Martins Filho,Sebastião; Paula Júnior,Trazilbo José de; Sediyama,Carlos Sigueyuki; Barros,Everaldo Gonçalves de; Moreira,Maurilio Alves.
RAPD-PCR molecular markers were used to identify common bean and soybean hybrid plants derived from crosses between closely related progenitors, with no apparent phenotypic differences. Primers OP-F12 and OP-0O3 were used to identify true hybrids derived from crosses between common bean cultivars Rudá (A 285) and AN 910408, and soybean cultivars Cristalina and Bossier, respectively. Each primer generated one polymorphic DNA band which was present in the male progenitor and absent in the female progenitor. As RAPD bands are normally inherited as dominant characters, the presence of these bands in the F1 plants confirmed their status.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: RAPD-PCR; Hybrid plants; Progenitors.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400016

A simple model for the estimation of congenital malformation frequency in racially mixed populations
Provedor de dados: 54
Autores: Lopez-Camelo,J.S.; Cabello,P.H.; Dutra,M.G.
A simple model is proposed, using the method of maximum likelihood to estimate malformation frequencies in racial groups based on data obtained from hospital services. This model uses the proportions of racial admixture, and the observed malformation frequency. It was applied to two defects: postaxial polydactyly and cleft lip, the frequencies of which are recognizedly heterogeneous among racial groups. The frequencies estimated in each racial group were those expected for these malformations, which proves the applicability of the method.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Congenital malformation; Racially mixed populations.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400024

TP53 mutations and loss of heterozygosity of chromosome 17 in colorectal tumors
Provedor de dados: 54
Autores: Yamamoto,Lidia; Lopes,Ademar A.; Harb-Gama,Angelito; Nagai,Maria A.
The incidence of TP53 point mutations and loss of heterozygosity (LOH) of chromosome 17 in colorectal tumors was determined in a group of Brazilian patients. We screened DNA samples from tumors and distal normal mucosa of 39 patients with colorectal cancer, for TP53 mutations by PCR-SSCP (single-strand conformation polymorphism) analysis. Chromosome 17 LOH was investigated using six PCR-based polymorphic markers and one VNTR probe. TP53 mutations were demonstrated in 15/39 of the cases. Mutations were distributed among all exons examined (five to eight), the majority of them being G/C to A/T transitions. LOH of chromosome 17p and 17q was detected in 70 and 46% of the tumors, respectively. There was a significant association between TP53 mutations and LOH...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: TP53 mutations; Heterozygosity; Chromosome 17; Colorectal tumors.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400022

Townes-Brocks syndrome or hemifacial microsomia-VACTERL phenotype?
Provedor de dados: 54
Autores: Roth,Maria da Graça Martino; Garcias,Gilberto de Lima; Ferreira,Fátima Lassalete Soares.
We report a male with imperforate anus, pedunculated triphalangeal thumbs, hemifacial microsomia, microtia, preauricular tags and cardiac anomalies. This is the first individual with Townes-Brocks syndrome to have hydrocephalus.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Townes-Brocks; Hemifacial; Microsomia-VACTERL.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400018

Inheritance of blast resistance in rice to two Pyricularia grisea races, IB-1 and IB-9
Provedor de dados: 54
Autores: Filippi,Marta C. de; Prabhu,A.S.
Seven sources of resistance to the two predominant races IB-1 and IB-9 of the rice blast pathogen Pyricularia grisea were selected based on leaf blast reaction in tests conducted under controlled greenhouse conditions. Crosses involving resistant and susceptible parents were made to study the inheritance of the disease reaction for different sources of resistance. The F1 and F2 progenies of all crosses, including backcrosses to resistant and susceptible parents, were tested for reaction to leaf blast. The data showed that resistance is controlled by one to three genes that segregate independently in most of the donors. Non-allelic interaction among resistance genes, including dominant epistasis, was identified.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blast resistance; Rice; Pyricularia grisea.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400012

Odonto-ungueal dysplasia: an apparently new autosomal dominant ectodermal dysplasia
Provedor de dados: 54
Autores: Pinheiro,Marta; Freire-Maia,Newton.
We describe 27 subjects (11 women) from five generations of a family with an apparently hitherto undescribed ectodermal dysplasia. All of them presented dental and/or nail alterations only. A genetic analysis of the family suggests an autosomal dominant gene. Differential diagnosis considered eight conditions belonging to the same odonto-onychic (2-3) subgroup, as well as Fried's tooth and nail syndrome and hypodontia and nail dysgenesis (both in 1-2-3 subgroup).
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Odonto-ungueal dysplasia; Autosomal dominant; Ectodermal dysplasia.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400019

Maternal age and Down syndrome in Southeastern Brazil
Provedor de dados: 54
Autores: Beiguelman,Bernardo; Krieger,Henrique; Silva,Luciana Marques da.
The proportion of maternal-age-independent patients estimated among 200 Brazilian Down syndrome children (59.6%) was significantly larger than that of maternal-age-dependent cases (40.4%). The latter proportion is the smallest observed in pertinent literature and due basically to the low mean maternal age of the population analyzed. Based on the remarkable correlation (r = 0.95) between the proportion of maternal-age-dependent patients and the mean maternal age of the general population, a simple predictive equation to estimate the proportion of maternal-age-dependent Down syndrome patients based on the mean maternal age of the general population is suggested in situations where reliable data on the incidence of this syndrome according to maternal age is...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Maternal age; Down syndrome; Southeastern Brazil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400020

Microphotometric scanning of chromatid gaps and breaks induced by AluI and BamHI in Chinese hamster ovary cells
Provedor de dados: 54
Autores: Martínez-López,Wilner; Bonomi,Rossana; Folle,Gustavo A.; Drets,Máximo E.
Chromatid gaps and breaks induced by the restriction endonucleases AluI and BamHI in the long arm of chromosome 1 of Chinese hamster ovary cells were microphotometrically scanned and mapped to a quantitative G-band map. More than 50% of chromatid breaks appeared as chromatin losses of greater than 5% of the total arm length. The majority of chromatid gaps and breaks as well as chromatin losses induced by both restriction endonucleases were non-randomly located in a region from 0.35 to 0.65 relative length units of the long arm of chromosome 1. We suggest that the access of these endonucleases to chromosomal DNA depends on the local organization of the chromatin.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Microphotometric scanning; Chromatid gaps; AluI; BamHI; Chinese hamster; Ovary cells.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400007

Chromosome studies in some Stevia. Cav. (Compositae) species from Southern Brazil
Provedor de dados: 54
Autores: Frederico,Adriana P.; Ruas,Paulo M.; Marin-Morales,Maria A.; Ruas,Claudete F.; Nakajima,Jimi N.
Karyotypes of six species of the genus Stevia from Southern Brazil were studied, utilizing root tip metaphases. All species were diploid with 2n = 22 chromosomes. It was possible to identify each species by chromosome morphology. The basic chromosome number for Brazilian species of Stevia is X = 11. This number is also found in almost all South American species. We suggest that in Stevia there is an evolutionary trend toward chromosomal rearrangement, caused mainly by pericentric inversions. It was found that, in addition to aneuploidy and polyploidy, chromosomal rearrangements are common in the tribe Eupatorieae.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chromosome; Stevia. Cav.; Southern Brazil.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400013

The polytene chromosomes of the mosquito Anopheles bellator compared with those of Anopheles cruzii
Provedor de dados: 54
Autores: Ramirez,Corolla C.L.; Dessen,Eliana M.B.
A photographic map was made of polytene chromosomes of ovarian nurse cells of Anopheles bellator females. The chromosomes of this species have complete or partial homology with those of A. cruzii, mainly in the telomeric and centromeric regions. Variability at the single band level was observed as asymmetric bands at seven different positions. One inversion (3Ra) was detected in the 3R arm.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Polytene chromosomes; Mosquito; Anopheles bellator; Anopheles cruzii.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400003

Delleman syndrome in a Brazilian boy
Provedor de dados: 54
Autores: Guion-Almeida,M.L.; Kokitsu-Nakata,N. M.
We report on a Brazilian boy, born to normal and nonconsanguineous parents and presenting facial asymmetry, hypotonia, cerebral anomalies, bilateral anophthalmia, supraorbital cysts, skin tags, cleft lip and palate, micrognatia, glossoptosis, cryptorchidism, and genital hypoplasia.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Delleman syndrome; Brazilian boy.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400017

Karyotype of a termitophilic species of Diplopoda (Polydesmida, Chelodesmidae)
Provedor de dados: 54
Autores: Fontanetti,Carmem Silvia.
This report describes the karyotype of a Brazilian Diplopod species (Arthropoda), Sandalodesmus gasparae (Schubart, Acta Zool. Lilloana Inst. "Miguel Lillo" 2: 321-440,1944), collected from a termite mound Cornitermes bequaerti. This species has 2n = 12. The sex pair could not be distinguished.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Karyotype; Termitophilic; Diplopoda.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400010

k-Casein gene frequencies support subdivision and historical origin of Argentine Creole cattle
Provedor de dados: 54
Autores: Golijow,C.D.; Giovambattista,G.; Poli,M.; Dulout,F.N.; Lojo,M.M.
Gene frequencies at the k-casein locus were estimated in six different herds (N = 180) of Argentinean Creole cattle. The results showed a strong influence of subdivision and independent evolution on the divergence of the observed gene frequencies. These results suggest that the population structure of these herds favor the maintenance of polymorphism, which is of crucial importance for the long-time survival of populations.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: K-Casein; Argentine Creole cattle.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400008

Effect of sigma factor S (sigmaS) on the stability of penicillin-binding protein 3 (PBP3) of Escherichia colt K12
Provedor de dados: 54
Autores: Machado,Rosane S.; Camelo,Douglas C.; Almeida,Darcy F. de; Ferreira,Luis C.S.
The stability of penicillin-binding protein 3 (PBP3), a cell septum synthesizing protein, was analyzed at different incubation temperatures in three Escherichia coli K12 strains carrying a PBP3-overproducing plasmid. The stability of PBP3 was significantly reduced in stationary phase cells shifted to 42°C for 4 h, compared to samples incubated at 28 or 37°C. The half-life of PBP3 in the C600 strain was 60 min at 42°C, while samples incubated at 28 or 37°C had PBP3 half-lives greater than 4 h. Analysis of the PBP3 content in mutants deficient in rpoS (coding for the stationary phase sigma factor, sigmaS) and rpoH (coding for the heat shock sigma factor, sigma32) genes after shift to 42°C showed that stability of the protein was controlled by sigmaS but not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sigma factor S; Penicillin-binding protein; Escherichia colt K12.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400001

Overcoming crossing barriers between cassava, Manihot esculenta Crantz and a wild relative, M. pohlii Warwa
Provedor de dados: 54
Autores: Nassar,Nagib M.A.; Carvalho,Claudio G.; Vieira,Clibas.
The use of mentor pollen has enabled successful hybridization between cassava, Manihot esculenta Crantz, and the wild species M. pohlii Warwa. Killed pollen of a cross compatible type produced by freeze-thawing was mixed with incompatible pollen and the mixes were dusted on stigmas. This treatment resulted in production of seed in 4.9% of the total pollinations, compared to 0% in the case of untreated pollinations. The use of a bridge species, M. neusana Nassar, through the hybrid M. pohlii and M. neusana also proved successful in overcoming interspecific barriers between cassava and M. pohlii.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Overcoming crossing barriers; Cassava; Manihot esculenta Crantz; Wild relative; M. pohlii Warwa.
Ano: 1996
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84551996000400015

Revista Identidades [no. 18, diciembre 1996. REVISTA COMPLETA]
Provedor de dados: 122
Autores: Instituto Andino de Artes Populares.
Tipo: Revista
Palavras-chave: IDENTIDAD CULTURAL; TEJIDOS; ARTESANÍAS; FIESTAS POPULARES; ORALIDAD; NARRATIVA; VENEZUELA; AMÉRICA LATINA; CULTURAL IDENTITY; FABRICS; CRAFTS; POPULAR FESTIVALS; ORALITY; NARRATIVE; LATIN AMERICA.
Ano: 1996
URL: http://hdl.handle.net/10469/3645

Ciudad Alternativa. [No. 12, 1996. REVISTA COMPLETA]
Provedor de dados: 122
Autores: Centro de Investigaciones CIUDAD.
Las ciudades, nuestras ciudades, las grandes, las chicas, las gigantescas, las diminutas, ¿son gobernables?, ¿pueden serlo? Ya hace un buen rato que el fantasma de la ingobernabilidad recorre el mundo de las ciencias sociales. Provoca quebraderos de cabeza, sentimientos píos, angustias por el orden y la democracia... o por los "riesgos" de una democracia que muchos confunden con los artificios institucionales.
Tipo: Revista
Palavras-chave: GOBIERNO; MUNICIPIO; GESTIÓN URBANA; URBANISMO; DESARROLLO SOSTENIBLE; MEDIO AMBIENTE; CONTAMINACIÓN; GLOBALIZACIÓN; GOVERNMENT; MUNICIPALITY; URBAN MANAGEMENT; PLANNING; SUSTAINABLE DEVELOPMENT; ENVIRONMENT; POLLUTION; GLOBALIZATION.
Ano: 1996
URL: http://hdl.handle.net/10469/3094

Revista Identidades [Recurso electrónico] : [no. 18, diciembre 1996]
Provedor de dados: 122
Autores: Instituto Andino de Artes Populares.
Presentación, p. 5 ; La cultura de la modernidad entre la globalización y la negentropía: un enfoque analítico / José Sánchez-Parga, p. 9 ; La interculturalidad o el coro polifónico de América / Clara Luz Zúñiga Ortega, p. 25 ; Culturas microregionales / Fernando Abasolo Adrianzen, p. 31 ; Folklore, identidad local y globalización / Ana María Dupey, p. 33 ; Haciendo cultura se identifican los pueblos / Alejandro Signi Sánchez, p. 41 ; Ninhue: tierra del sol y de manos tejedoras / Tilma Cornejo, Rogelio Navarrete, p. 47 ; Memoria histórica en los símbolos de la fiesta comunitaria, aproximación antropológica / César Junaro Durán, p. 51 ; El cuento guajibo: fantasía y leyenda / Elizabeth Sosa V., p. 57 ; La versión atacameña de la huida mágica / Roberto...
Tipo: Revista
Palavras-chave: IDENTIDAD CULTURAL; INTERCULTURACIÓN; TEJIDO A MANO; FIESTA POPULAR; LITERATURA ORAL; TRADICIÓN ORAL; CUENTO VENEZOLANO; AMÉRICA LATINA; PUBLICACIONES PERIÓDICAS.
Ano: 1996
URL: http://hdl.handle.net/10469/838

La economía de etiquetación ecológica en Ecuador
Provedor de dados: 122
Autores: Bernal, Fabián A.
La crítica ecológica sobre la agricultura moderna se dirige en uno de sus aspectos a evaluar los efectos que los paquetes de alta productividad otorgados por la llamada Revolución Verde de la tecnología, han producido sobre el medio ambiente o ecosistemas. En el Ecuador, el sector agro-exportador sólo ahora recibe la crítica pública abierta de incurrir en daños ambientales por el uso indiscriminado de fertilizantes y pesticidas en sus prácticas de cultivo, quizás porque uno de los afectados representado por inversionistas de un nivel importante -el sector camaronero- se hace fácilmente escuchar. Sin embargo, estas prácticas agrícolas al parecer ambientalmente perjudiciales aparecen en ciertos casos con la promoción inicial o difusiones graduales del...
Tipo: Tesis de maestría
Palavras-chave: PROTECCIÓN AMBIENTAL; PRODUCCIÓN ECOLÓGICA; RECURSOS NATURALES.
Ano: 1996
URL: http://hdl.handle.net/10469/296

Matrimonio criollo y violencia conyugal : Cuenca 1750 - 1800
Provedor de dados: 122
Autores: León G., Catalina.
El matrimonio criollo fue, en el siglo XVIII, una institución sólida, a pesar de la extendida práctica del adulterio. Esta fortaleza del consorcio, sin embargo, se vio eventualmente conmocionada por las quejas de esposas de toda condición social quienes denunciaban ante los jueces Eclesiásticos la insoportable situación de la relación de pareja. Esta tesis es un análisis del matrimonio y la violencia marital, característicos de la vida cotidiana y práctica social de los segmentos criollos de la sociedad cuencana, puesto que el abordaje de dichos problemas en este ámbito social nos permite emprender el estudio de las relaciones de género y la constitución del matrimonio desde los sectores dominantes, cuyos comportamientos conyugales formalmente debieron ser...
Tipo: Tesis
Palavras-chave: MATRIMONIO; VIOLENCIA; CLASES SOCIALES; MUJERES.
Ano: 1996
URL: http://hdl.handle.net/10469/504

Reducir el estado : ??para qu?? y para qui??n? (Coyuntura nacional)
Provedor de dados: 122
Autores: Maya D??az, Milton.
La principal conclusi??n que se puede sacar es que en la administraci??n p??blica se est?? produciendo un cambio cualitativo hacia abajo: de un escenario de naturaleza ???t??cnico-profesional", se est?? pasando a otro de confrontaci??n y pugna de poderes, interferencias pol??ticas y usurpaciones de funciones en el que las relaciones son m??s verticales y clientelares, y ???t??cnicamente corruptas".
Tipo: Art??culo
Palavras-chave: ADMINISTRACI??N P??BLICA PUGNA DE PODERES DUR??N BALL??N; SIXTO MODERNIZACI??N ESTADO CORRUPCI??N GASTO P??BLICO ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/5989

Ciudadanos del siglo XVIII, consumidores del siglo XXI (Entrevista)
Provedor de dados: 122
Autores: Andrade, X.; Auyero, Javier.
Este nuevo libro, Consumido??res y Ciudadanos reubica algunos problemas tratados en Culturas H??bridas; el subt??tulo habla de multiculturalidad, la multiculturalidad genera hibridaci??n. Sin embargo, hay algunos procesos que se han dado en estos cinco ??ltimos a??os, desde la aparici??n de Culturas  H??bridas, que replantean las condiciones actuales, nacionales e internacionales, en las cuales se dan estos procesos.
Tipo: Art??culo
Palavras-chave: ENTREVISTA; CIUDADANOS; SOCIEDAD; CONSUMISMO; CULTURAS H??BRIDAS.
Ano: 1996
URL: http://hdl.handle.net/10469/6023

Me manda L??pez : la doble vida del clientelismo pol??tico (An??lisis)
Provedor de dados: 122
Autores: Auyero, Javier.
El clientelismo pol??tico vive una doble vida. Y una doble vida en dos sentidos. En primer lugar una doble vida cronol??gica porque, contra las incorrectas concepciones que ve??an al clientelismo como un arreglo social destinado a desaparecer como producto del desarrollo econ??mico y pol??tico, este sigue siendo un mecanismo relevante como medio de articulaci??n entre el Estado, el sistema pol??tico y la sociedad.  En segundo lugar, el clientelismo vive una doble vida anal??tica que no ha sido suficientemente explorada en los ya cl??sicos estudios sobre el tema.
Tipo: Art??culo
Palavras-chave: CLIENTELISMO POL??TICO; RELACIONES CLIENTELARES; INTERESES POL??TICOS.
Ano: 1996
URL: http://hdl.handle.net/10469/6037

La recuperación democrática del territorio y el medio ambiente de México (Artículos)
Provedor de dados: 122
Autores: Grupo Democracia y Territorio.
El patrón de crecimiento económico e industrialización seguido por México en la posguerra, dio lugar a una forma de organización territorial caracterizada por la desigualdad en el desarrollo regional, la concentración metropolitana, el crecimiento urbano anárquico, la inequidad en la distribución de los bienes y servicios sociales, y la acumulación de déficit de condiciones materiales de vida para los sectores mayoritarios de la población. La planeación y las políticas territoriales estatales fueron ineficaces para resolver estos problemas y orientar una organización del territorio acorde con las necesidades de desarrollo económico y social sostenido y la justa satisfacción de las necesidades sociales de toda la población. La crisis económica iniciada a...
Tipo: Artículo
Palavras-chave: DEMOCRACIA; TERRITORIO; MEDIO AMBIENTE; MIGRACIÓN; CRISIS SOCIAL; GESTIÓN URBANA; DEMOCRACY; TERRITORY; ENVIRONMENT; MIGRATION; SOCIAL CRISIS; URBAN MANAGEMENT; MÉXICO; AMÉRICA LATINA.
Ano: 1996
URL: http://hdl.handle.net/10469/3255

Las asimetr??as de la globalizaci??n en la actual coyuntura econ??mica mundial (Coyuntura internacional)
Provedor de dados: 122
Autores: Salgado Tamayo, Wilma.
La liberalizaci??n del comercio mundial no se registra de manera uniforme en todo el mundo ni en todos los sectores. Los pa??ses industrializados mantienen trabas a las importaciones hacia sus mercados de productos considerados "sensibles" a la competencia externa; mientras promueven la liberalizaci??n en general de terceros mercados apoy??ndose en los Organismos Multilaterales como el FMI y el Banco Mundial, es decir, en los pa??ses en los que ??stos pueden imponer sus condicionamientos.
Tipo: Art??culo
Palavras-chave: GLOBALIZACI??N; ECONOM??A MUNDIAL; COMERCIO INTERNACIONAL; PA??SES INDUSTRIALIZADOS; FONDO MONETARIO INTERNACIONAL (FMI); BANCO MUNDIAL (BM).
Ano: 1996
URL: http://hdl.handle.net/10469/6051

Garimpos do vale do Tapajós as máquinas transformando as relaçoes de produçao e o meio ambiente
Provedor de dados: 122
Autores: Rodrigues, Rita.
En este trabajo se  propone  analizar cómo la introducción de máquinas en la labranza ha causado modificaciones en el proceso de trabajo en las minas del Valle del río Tapajós. Realizando una breve revisión de la legislación para comprender las consecuencias generadas a los trabajadores que participan en la extracción de minerales. Sin esta definición legal se hace difícil pensar en la organización de una categoría económica. Las relaciones sociales y la producción en las minas tienen un carácter inmovilizador, se pretende mostrar el contexto histórico en el que la fuerza de trabajo estaba sujeta a los mecanismos de ejecución que afecten a su movilidad personal.
Tipo: Tesis de maestría
Palavras-chave: MINERÍA; MEDIO AMBIENTE; IMPACTO AMBIENTAL; BRASIL; CONTAMINACIÓN AMBIENTAL.
Ano: 1996
URL: http://hdl.handle.net/10469/303

Productos primarios y mano de obra no calificada, pierden participaci??n como factores de producci??n (Coyuntura internacional)
Provedor de dados: 122
Autores: Salgado, Wilma.
El deterioro del mercado laboral ha sido mucho m??s grave de lo que indican las cifras de desempleo en el mundo industrializado en los a??os ochenta y noventa, aclarando que entre los nuevos empleos se incluyen empleos de baja productividad y baja remuneraci??n, considerados propiamente como parte del "desempleo disfrazado".
Tipo: Art??culo
Palavras-chave: DESEMPLEO; MERCADO LABORAL; MATERIA PRIMA; MANO DE OBRA NO CALIFICADA; FACTORES DE PRODUCCI??N; INDUSTRIA.
Ano: 1996
URL: http://hdl.handle.net/10469/5998

El proceso de toma de decisiciones en política exterior
Provedor de dados: 122
Autores: Borja Hidalgo, Patricia.
En este trabajo se analizará la estructura y dinámica del proceso de toma de decisiones en la política exterior ecuatoriana durante el régimen presidencial de Rodrigo Borja (1988-1992) en un tema que ha sido crucial a lo largo de la historia republicana del Ecuador: las relaciones con el Perú y el centenario diferendo territorial que se mantiene con ese país. Cabe indicar que frente a un tema de crucial importancia en la historia republicana del Ecuador como éste, constatamos el hecho que el debate sobre política exterior ha sido tradicionalmente limitado. Han sido pocos los estudios elaborados con el objeto de analizar las posturas ecuatorianas desde la perspectiva de las Ciencias Políticas o las Relaciones Internacionales, aunque se han realizado, eso...
Tipo: Tesis de maestría
Palavras-chave: POLÍTICA EXTERIOR; TOMA DE DECISIONES; ECUADOR; PERÚ; RELACIONES BILATERALES.
Ano: 1996
URL: http://hdl.handle.net/10469/373

Contaminación por plomo (Artículos)
Provedor de dados: 122
Autores: Bossano Rivadeneira, Fernando; Oviedo Carrillo, Jorge.
El plomo produce diferentes enfermedades de acuerdo a la concentración que alcanza en el organismo humano. El plomo del ambiente ingresa a los individuos principalmente por dos vías: respiración y alimentación. Para la vía respiratoria es importante el que existe en forma suspendida en el aire y que proviene de los automóviles y de las industrias. En cambio por vía oral ingresa el plomo presente en los alimentos, como parte de estos o por la contaminación de las manos y utensilios de comida. Los niños absorben hasta el 50% del plomo ingerido, en cambio los adultos solo el 10%.
Tipo: Artículo
Palavras-chave: PLOMO-METAL; CONTAMINACIÓN; RIESGO SANITARIO; LEAD METAL; POLLUTION; HEALTH RISK; FUNDACIÓN NATURA; ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/3265

Sarance [no. 23, agosto 1996. REVISTA COMPLETA]
Provedor de dados: 122
Autores: Instituto Otavale??o de Antropolog??a.
El presente n??mero consta de dos partes: La primera en la que se destacan los trabajos de los siguientes investigadores asociados del Instituto Otavale??o de Antropolog??a: "Arboles, manantiales y cerros sagrados de los Andes Septentrionales del Ecuador"; "M??sica y danzas de la Sierra Norte del Ecuador", y "El trabajo textil de Peguche". A ellos se suman dos temas que rebasan aspectos nacionales: "Cultura y salud reproductiva, el caso de los Inganas urbanos" y "Oralidad y est??tica entre los Huitotos colombianos".  La segunda parte recopila los trabajos expuestos en el Segundo Seminario Binacional de Creatividad, organizado por el lOA y la Universidad de Nari??o en el pasado mes de mayo.  Tambi??n aparece la convocatoria al Primer Congreso Ecuatoriano de...
Tipo: Revista
Palavras-chave: ANTROPOLOG??A; INVESTIGACI??N; POBLACI??N IND??GENA; CULTURA; CONOCIMIENTO; UNIVERSIDAD DE NARI??O; MEDIO AMBIENTE; ANTHROPOLOGY; RESEARCH; INDIGENOUS PEOPLE; CULTURE; KNOWLEDGE; UNIVERSITY OF NARI??O; ENVIRONMENT; PEGUCHE; ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/5438

Ecoturismo en la reserva Cuyabeno : realidad y retórica en la relación de los Siona con el turismo ecológico 1994
Provedor de dados: 122
Autores: Arrueta, José Antonio.
El Turismo es una actividad que consiste básicamente en visitar lugares en donde buscamos satisfacer demandas relacionadas a información, diversión, conocimiento y placer. El turismo ecológico implica reglamentos de conducta de los visitantes, en relación a la preservación y conservación de los sitios naturales a silvestres que se visita. Incluye la participación de las poblaciones locales de los sitos de reserva como “beneficiarias” del ecoturismo. Estos "principios generales" del turismo ecológico son apoyados por instituciones internacionales y nacionales. El paso del turismo común o tradicional al ecoturismo en la selva ecuatoriana responde a "evolución" adoptando principios de conservación de las áreas silvestres. El Cuyabeno se considera también un...
Tipo: Tesis
Palavras-chave: TURISMO ECOLÓGICO; PARQUES NACIONALES; AMAZONÍA; ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/594

La conservaci??n y disoluci??n de los peque??os productores no capitalistas en Quito (Tema central)
Provedor de dados: 122
Autores: Middleton, Alan; Kelly, Robert.
Mientras no existen dudas de que ciertos sectores de la poblaci??n han ganado con las pol??ticas de ajuste neo-liberal y que la prolongada crisis no ha afectado a todos de igual manera, carecemos de evidencias de que se haya hecho ning??n bien a los peque??os manufactureros no capitalistas en conjunto: aquel grupo de la econom??a que los neoliberales apoyaron como micro-empresarios y el futuro del capitalismo.
Tipo: Art??culo
Palavras-chave: DISTRITO METROPOLITANO DE QUITO; ECUADOR; PEQUE??OS PRODUCTORES; NEOLIBERALISMO; POL??TICAS P??BLICAS; CRISIS ECON??MICA; MICRO-EMPRESAS; CAPITALISMO.
Ano: 1996
URL: http://hdl.handle.net/10469/6001

El indio en la mente de los intelectuales criollos (Tema central)
Provedor de dados: 122
Autores: Gonz??lez, Osmar.
Los rasgos f??sicos funcionan como rasgos de diferencias sociales, llevando a asociaciones binarias del tipo blanco-bello, oscuro-feo; hombres superiores-hombres inferiores; desprecio-odio. Los rasgos f??sicos se vuelven importantes gracias a la valoraci??n que se les otorgan dentro del contexto de una cultura determinada.
Tipo: Art??culo
Palavras-chave: RESENTIMIENTO CRIOLLO; REP??BLICA ARISTOCR??TICA; PIEL; CREOLE RESENTMENT; ARISTOCRATIC REPUBLIC; SKIN.
Ano: 1996
URL: http://hdl.handle.net/10469/6060

Aspectos pol??tico-sociales del manejo de los recursos naturales en la cordillera occidental de las provincias de Cotopaxi y Tungurahua (Debate agrario)
Provedor de dados: 122
Autores: Field, Leonard.
La presi??n de los sistemas antr??picos, y particularmente los sistemas de acumulaci??n socio-econ??mica relacionados directamente con la econom??a mundial, est??n causando estragos sobre los sistemas naturales en velocidades y superficies mayores que en ning??n momento en la historia, provocando una visi??n pesimista del futuro, que incluye el espectro de un colapso total.
Tipo: Art??culo
Palavras-chave: EROSI??N DEL SUELO; CONTAMINACI??N AMBIENTAL; RECURSOS NATURALES; PROVINCIA DE COTOPAXI; PROVINCIA DE TUNGURAHUA; ECUADOR; ECONOM??A MUNDIAL.
Ano: 1996
URL: http://hdl.handle.net/10469/6027

El proceso de toma de decisiciones en política exterior
Provedor de dados: 122
Autores: Borja Hidalgo, Patricia.
En este trabajo se analizará la estructura y dinámica del proceso de toma de decisiones en la política exterior ecuatoriana durante el régimen presidencial de Rodrigo Borja (1988-1992) en un tema que ha sido crucial a lo largo de la historia republicana del Ecuador: las relaciones con el Perú y el centenario diferendo territorial que se mantiene con ese país. Cabe indicar que frente a un tema de crucial importancia en la historia republicana del Ecuador como éste, constatamos el hecho que el debate sobre política exterior ha sido tradicionalmente limitado. Han sido pocos los estudios elaborados con el objeto de analizar las posturas ecuatorianas desde la perspectiva de las Ciencias Políticas o las Relaciones Internacionales, aunque se han realizado, eso...
Tipo: Tesis de maestría
Palavras-chave: POLÍTICA EXTERIOR; TOMA DE DECISIONES; ECUADOR; PERÚ; RELACIONES BILATERALES.
Ano: 1996
URL: http://hdl.handle.net/10469/373

Los quichuas del Napo en la frontera del conflicto
Provedor de dados: 122
Autores: Pazmiño Freire, Patricio.
La investigación tiene como propósito estudiar el tema de la ocupación territorial progresiva de áreas cercanas o incluidas en el Parque Nacional Yasuní, por parte de los indígenas quichuas, buscando precisar cuáles son los actores y el rol que los sustenta, para establecer los intereses en juego y así poder aproximarnos a las fuentes del conflicto en esta zona del nororiente. El trabajo concluye con algunas propuestas que podrían aportar a la resoluci6n de las principales diferencias, en el mediano y largo plazo.
Tipo: Tesis
Palavras-chave: INDIOS DE LA AMAZONÍA; QUICHUAS; USO DE LA TIERRA; MEDIO AMBIENTE; PARQUES NACIONALES.
Ano: 1996
URL: http://hdl.handle.net/10469/588

El modelo de relacionamiento de la Maxus y Huaorani : análisis de un "plan de desarrollo comunitario" petrolero
Provedor de dados: 122
Autores: Narváez Quiñonez, Iván.
A partir de la década de los 60s el Estado Ecuatoriano intensificó el proceso hidrocarburífero en la Región Amazónica y el objetivo principal de dicho proceso, ha estado dirigido a satisfacer la creciente demanda de recursos que requiere el desarrollo económico del país. Desde el punto de vista ambiental el escenario petrolero involucra a un conjunto de ecosistemas diferenciados que han sido intervenidos bajo formas de explotación sujetas a la lógica de expansión capitalista y produciendo desequilibrios que contribuyen a los cambios de los patrones bioclimáticos, modificaciones a nivel de la biosfera, y sus consecuencias ambientales tienen incidencia múltiple y directa sobre los hábitat más próximos. Bajo este enfoque el proceso petrolero implica varias...
Tipo: Tesis de maestría
Palavras-chave: DESARROLLO DE LA COMUNIDAD; EMPRESAS PETROLERAS; HUAORANI (NACIONALIDAD); REGIÓN AMAZÓNICA (ECUADOR); ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/486

Biodiversidad, biotecnolog??a y desarrollo sustentable en la amazon??a (Debate agrario)
Provedor de dados: 122
Autores: Brack Egg, Antonio.
La amazon??a es depositaria de varios miles de especies de plantas y animales, conocidos por los pobladores locales, que est??n siendo "descubiertas cient??ficamente" y analizadas para obtener nuevos compuestos qu??micos,   especialmente en el rubro farmacol??gico. Experiencias recientes demuestran que diversas especies de plantas y animales, especialmente en los tr??picos, contienen un enorme potencial de compuestos qu??micos. Productos naturales de los tr??picos son fuentes de drogas contra el c??ncer, la malaria, enfermedades parasitarias, des??rdenes diarreicos, enfermedades infecciosas (como el SIDA), enfermedades cardiovasculares, enfermedades respiratorias, hepatitis, des??rdenes mentales y otras enfermedades serias.
Tipo: Art??culo
Palavras-chave: CUENCA AMAZ??NICA; POL??TICA DEL MEDIO AMBIENTE; TRATADOS INTERNACIONALES; BIODIVERSIDAD; BIOTECNOLOG??A; DESARROLO SUSTENTABLE; AMAZON??A; ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/5934

Racismo e identidad: Fundamentos del racismo ecuatoriano (Tema central)
Provedor de dados: 122
Autores: Almeida, Jos??.
Es com??n escuchar que los ecuatorianos "no somos racistas". Esta opini??n, al parecer, se??ala la inexistencia en nuestro pa??s de normas jur??dicas o pr??cticas institucionales que discriminen a un individuo o grupo humano por su apariencia f??sica, tal como ocurre en otros pa??ses calificados como racistas. Sin embargo, esta apreciaci??n est?? muy lejana a la realidad: en el Ecuador existe desprecio racial, fundamentalmente en contra de aquellos ciudadanos denominados displicentemente como "de color", de apariencia "aindiada" o "chola".
Tipo: Art??culo
Palavras-chave: RACISMO E IDENTIDAD; NACIONALIDAD ECUATORIANA; PROCESO IDENTITARIO; ECUADORIAN NATIONALITY; RACISM AND IDENTITY; PROCESS IDENTITY.
Ano: 1996
URL: http://hdl.handle.net/10469/6058

Violencia y ciudad (An??lisis)
Provedor de dados: 122
Autores: Zuluaga, Jaime.
En una ??poca de globalizaci??n las ciudades est??n constituidas no solamente por lo  que ocurre en su territorio sino tambi??n en el modo como es atravesada por los  m??ltiples y diversos mensajes procedentes de otros paises, de suerte que lo propio se define en mayor proporci??n en funci??n de lo que recibimos e imaginamos de los otros.
Tipo: Art??culo
Palavras-chave: GLOBALIZACI??N NEOLIBERAL; DELINCUENCIA; VIOLENCIA; CIUDAD; NEOLIBERAL GLOBALIZATION; CRIME; VIOLENCE; CITY.
Ano: 1996
URL: http://hdl.handle.net/10469/6056

Revista Ciudad Alternativa [no. 12, II Epoca 1996. REVISTA COMPLETA]
Provedor de dados: 122
Autores: Centro de Investigaciones CIUDAD.
Las ciudades, nuestras ciudades, se vuelven cada día más complejas, más contradictorias, más  opuestas y fragmentadas en sí mismas; más ajenas, másinasibles; más sujetas a las pasiones del  interés que al interés por las pasiones. Queremos vivir bien en las ciudades, ¿y cómo vivimos en  ellas?, ¿qué condiciones nos ofrece para sobrellevar el malvivir nuestro de cada día?.   Y esas ciudades, nuestras ciudades, que se llenan de miseria, que se ahogan entre el smog y la especulación inmobiliaria, que se dicen y se muestran y se encubren y se mienten, que se aman y se odian, que se viven y nos matan; esas ciudades, ¿ocurren?, ¿transcurren?, ¿se deben también a la mano invisible que todo 10 puede?, ¿de quién es, a quién responde una tal mano que no se puede o...
Tipo: Revista
Palavras-chave: CIUDADES; TERRITORIO; MEDIO AMBIENTE; URBANISMO; HÁBITAT URBANO; POLÍTICAS PÚBLICAS; CONTAMINACIÒN AMBIENTAL; RENOVACIÓN URBANA; ECUADOR; MÉXICO; CITIES; TERRITORY; ENVIRONMENT; URBAN; URBAN HABITAT; PUBLIC POLICY; ENVIRONMENTAL POLLUTION; URBAN RENEWAL.
Ano: 1996
URL: http://hdl.handle.net/10469/3706

Evaluaci??n de la reforma laboral peruana : 1990- 1995 (Tema central)
Provedor de dados: 122
Autores: Verdera, Francisco.
El ajuste estructural ha deprimido el empleo estable sindicalizado, ha promovido la contrataci??n de trabajadores eventuales, ha mantenido los ingresos bajos y no ha incentivado el aumento de la productividad y el mejoramiento de la competitividad de las empresas. Todo ello en un contexto donde la reducci??n de la inflaci??n y el reordenamiento fiscal no han logrado crear las condiciones necesarias para la reactivaci??n de la econom??a y el mercado de trabajo. Adem??s, distorsiones como el atraso cambiario y el cr??dito caro dificultan la recuperaci??n del aparato reproductivo.
Tipo: Art??culo
Palavras-chave: PER??; EMPLEO; BAJOS INGRESOS; REDUCCI??N DE LA INFLACI??N; REFORMA LABORAL; REORDENAMIENTO FISCAL; ECONOM??A; MERCADO DE TRABAJO.
Ano: 1996
URL: http://hdl.handle.net/10469/6014

Mujeres y hombres en la Isluga y Cariquima : una aproximación a las relaciones de género entre los Aymara del norte de Chile
Provedor de dados: 122
Autores: Gavilán Vega, Vivian.
El propósito central de este trabajo es indagar en las relaciones de género entre los Aymara contemporáneos. La pregunta de investigación que guía el desarrollo del mismo es ¿Cómo se construye social y culturalmente el género entre los Aymara del Norte de Chile?  La información etnográfica utilizada proviene fundamentalmente del trabajo de campo realizado en Isluga y Cariquima, dos comunidades ubicadas en la zona altiplánica sur de la Primera Región del país. A las observaciones e historias de vida recopiladas, se agregaron algunos documentos judiciales de este siglo. Como referentes teóricos y metodológicos utilizamos los avances obtenidos por las investigaciones antropológicas en esta temática. Definir el concepto de género como un constructo social,...
Tipo: Tesis
Palavras-chave: GÉNERO; AYMARAS; CHILE; ANDES; INDÍGENAS.
Ano: 1996
URL: http://hdl.handle.net/10469/853

Mercado laboral : crisis y flexibilizaci??n : empleo, inequidad y crisis en el Ecuador (Tema central)
Provedor de dados: 122
Autores: Larrea Maldonado, Carlos.
La moderada recuperaci??n de la econom??a observada en la presente d??cada no ha generado efectos positivos sobre el empleo, salvo algunas excepciones a nivel micro-regional. En consecuencia, la magnitud relativa del subempleo en el Ecuador contin??a creciendo, y afecta a casi las dos terceras partes de la fuerza laboral.
Tipo: Art??culo
Palavras-chave: ECUADOR; EMPLEO; CRISIS ECON??MICA; MERCADO LABORAL; INEQUIDAD SOCIAL; SUBEMPLEO; MANO DE OBRA.
Ano: 1996
URL: http://hdl.handle.net/10469/5999

La acción de tutela en la Constitución Política de Colombia 1991: un instrumento potencial para el aprendizaje ciudadano
Provedor de dados: 122
Autores: Lamus Canavate, Doris.
El interés que motiva el examen de la acción de tutela como mecanismo para el aprendizaje ciudadano se sustenta en que, tratándose de un procedimiento jurídico destinado a dotar de garantías constitucionales un conjunto de derechos individuales y eventualmente colectivos inherentes a la persona, su uso implica necesariamente apelar, demandar y obtener la protección demandada.
Tipo: Tesis de maestría
Palavras-chave: POLÍTICA; CONSTITUCIÓN POLÍTICA (COLOMBIA); DERECHOS HUMANOS.
Ano: 1996
URL: http://hdl.handle.net/10469/488

Significados del ajuste estructural en el Ecuador (Tema central)
Provedor de dados: 122
Autores: Lucio Romero, Ruth.
A m??s de una d??cada de su inicio, los efectos econ??micos del modelo de desarrollo impulsado han sido limitados y relativamente modestos para la mayor??a de ecuatorianos. Solamente algunos pocos "suertudos" han hecho cuantiosas fortunas gracias a las crisis. A su vez, los costos sociales del proceso han sido muy elevados, influyendo los PAE incluso en ??mbitos tan dis??miles y variados que resulta incre??ble. ??Se ha puesto Ud. a pensar, por ejemplo, que un ajuste en el presupuesto de la funci??n judicial pudiera causar un efecto proporcional del incremento de la corrupci??n? O que un ajuste del d??ficit fiscal provocar??a que en el Ecuador no se publiquen m??s estad??sticas por falta de fondos, como se quejaba amargamente un asiduo fan??tico de los...
Tipo: Art??culo
Palavras-chave: MODELOS ECON??MICOS; AUSTERIDAD MONETARIA; D??FICIT FISCAL; POL??TICA CAMBIARIA; AJUSTE MONETARIO; CORRUPCI??N; ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/5929

La crisis, el ajuste y la pequeña producción urbana en Ecuador: 1988-1992
Provedor de dados: 122
Autores: Sánchez Z, Jeannette.
El presente trabajo tiene por objeto analizar la dinámica de los trabajadores de la pequeña producción urbana en un contexto de crisis y ajuste. Por un sentido operativo, tal grupo se lo asocia con el sector informal urbano, conforme la consideración oficial para el manejo de las estadísticas de empleo en el país. El interés principal de la investigación es ver la respuesta de las estrategias de reproducción de la fuerza de trabajo que no encuentra un espacio en el llamado sector moderno de la economía, sus características peculiares en contextos distintos de la economía y de la política económica.
Tipo: Tesis
Palavras-chave: RECESIÓN ECONÓMICA; AJUSTE ECONÓMICO; SECTOR INFORMAL; INDICADORES ECONÓMICOS.
Ano: 1996
URL: http://hdl.handle.net/10469/271

Las elecciones de 1996 o la coste??izaci??n de la pol??tica ecuatoriana (Coyuntura pol??tica)
Provedor de dados: 122
Autores: Ibarra, Hern??n.
La coste??izaci??n de la pol??tica ecuatoriana es la supremac??a de dos fuerzas partidarias de origen coste??o en la escena pol??tica nacional, producida como consecuencia de una declinaci??n del centro pol??tico. Se trata de una penetraci??n que sin ser todav??a mayoritaria en el electorado de la sierra, adquiere un peso espec??fico y dimensiones en ciertos niveles locales.
Tipo: Art??culo
Palavras-chave: POPULISMO; ELECCIONES PRESIDENCIALES; POL??TICA; ECUADOR; DESARROLLO ECON??MICO; REGI??N COSTA.
Ano: 1996
URL: http://hdl.handle.net/10469/6049

El conflicto sociopol??tico junio 1995 - febrero 1996 (Conflictividad)
Provedor de dados: 122
A partir de la segunda mitad del a??o 1995, la profundizaci??n de los niveles de malestar sociopol??tico en la sociedad ecuatoriana vuelven a expresarse en  distintos escenarios. La raz??n de este incremento se la puede ubicar meses atr??s, ya que, tanto el conflicto armado con el Per??, como el llamado oficial a la unidad nacional, hab??an oscurecido la visibilidad de los problemas relacionados con la carencia de una adecuada gobernabilidad y tomas de decisi??n incoherentes que caracteriza al actual r??gimen.
Tipo: Art??culo
Palavras-chave: CONFLICTOS ARMADOS; SOCIEDAD; FRONTERAS; GOBERNABILIDAD; ECUADOR; PER??.
Ano: 1996
URL: http://hdl.handle.net/10469/5925

Hacia una teor??a socialista del racismo (Tema central)
Provedor de dados: 122
Autores: West, Cornel.
Deber??a ser aparente que las pr??cticas racistas dirigidas hacia personas de color negro, caf??, amarillo y rojo son un elemento integral de la historia de los Estados Unidos, como lo son actualmente de su cultura y sociedad. Esto no s??lo significa que los americanos han heredado actitudes y prejuicios racistas, sino m??s importante, es que las formas institucionales de racismo est??n incrustadas en la sociedad americana, tanto de manera visible como invisible.
Tipo: Art??culo
Palavras-chave: CONCEPCIONES MARXISTAS; SOCIALISMO Y ANTIRRACISMO; MARXIST CONCEPTIONS; SOCIALISM AND ANTI-RACISM.
Ano: 1996
URL: http://hdl.handle.net/10469/6053

El amor en las ciudades (Artículos)
Provedor de dados: 122
Autores: Pérez Piñeyro, María del Pilar.
Las metrópolis contemporáneas como entidades humanas no confiables. ¿Serán para siempre ingobernables? ¿Quiénes deberían intervenir sobre ellas? Las metrópolis de Sao Paulo de los morros de la Freguesia Do O, los niños de sus favelas, intentan remontar al cielo minúsculas cometas de papel blanco construidas por ellos mismos, manipulándolas contra el aire desde hilos de coser. Las cometas blancas de papel se entreveran, inevitablemente, entre los cables de la electricidad y allí culmina el juego, contra un cielo sin embargo azul, inmerso aun en aires poluídos.
Tipo: Artículo
Palavras-chave: METRÓPOLIS; CONTEMPORANEIDAD; SERVICIOS BÁSICOS; METROPOLIS; CONTEMPORARY; BASIC SERVICES; SAO PAULO.
Ano: 1996
URL: http://hdl.handle.net/10469/3269

Mercados y cultura de la sierra norte del Ecuador (Debate agrario)
Provedor de dados: 122
Autores: Ferraro, Emilia.
Diez a??os de experiencias han demostrado que las medidas estandars que est??n en la base de los programas de reforma del mercado (devaluaci??n de la moneda local, reducci??n de las barreras comerciales, restricciones al rol del Estado en el  mercado agr??cola), y que ten??an como objetivo principal la estabilizaci??n macroecon??mica, en la realidad no han logrado uno de sus objetivos principales, que era el de beneficiar a los peque??os campesinos de las zonas rurales de los paises desarrollados. Por el contrario, para muchos de ellos, la situaci??n ha empeorado.
Tipo: Art??culo
Palavras-chave: SIERRA NORTE; MERCADOS; TENENCIA DE LA TIERRA; PR??CTICAS; MARKETS; LAND TENURE; PRACTICES.
Ano: 1996
URL: http://hdl.handle.net/10469/6052

El di??logo democr??tico y la pol??tica de la cultura (An??lisis)
Provedor de dados: 122
Autores: Baca Olamend??, Laura.
La promoci??n del di??logo y el mantenimiento del esp??ritu cr??tico son dos condiciones b??sicas que caracterizan a la cultura democr??tica. Es importante mencionar que la singularidad de estas figuras no es privativa de otras latitudes sino que tambi??n en la historia latinoamericana reciente podemos encontrar hombres de cultura que de una u otra forma han adoptado actitudes similares y por ello resultar?? interesante identificar, en las nuevas condiciones, las caracter??sticas de nuestros "personajes de la raz??n" en relaci??n con su compromiso pol??tico.
Tipo: Art??culo
Palavras-chave: CULTURA DEMOCR??TICA; HISTORIA; AM??RICA LATINA; POL??TICA CULTURAL; ESTADO.
Ano: 1996
URL: http://hdl.handle.net/10469/6012

¿Cómo le ves a Quito en el espejo cóncavo del tiempo (Miradas y Voces)
Provedor de dados: 122
Autores: Martínez Espinosa, Nela.
Tipo: Artículo
Palavras-chave: LITERATURA; LITERATURE; ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/3266

Ajuste estructural, pobreza y participaci??n popular (Tema central)
Provedor de dados: 122
Autores: Campod??nico, Humberto.
Durante la d??cada del 80 en Am??rica Latina, la preocupaci??n central de la pol??tica econ??mica radic?? en superar los problemas de la Balanza de Pagos (sobretodo, el pago de la deuda externa) y los problemas inflacionarios. Se aplicaron, en general, programas de estabilizaci??n de corte ortodoxo que generaron excedentes comerciales importantes, los mismos que fueron transferidos al exterior por una suma superior a los US$ 220.000 millones en el per??odo 1982-91 (CEPAL).
Tipo: Art??culo
Palavras-chave: BANCO MUNDIAL; REFORMAS NEOLIBERALES; POL??TICA MONETARIA; POBREZA; PA??SES SUBDESARROLLADOS; PR??STAMOS; AM??RICA LATINA.
Ano: 1996
URL: http://hdl.handle.net/10469/5930

Caras y m??scaras del ajuste : apuntes para una econom??a pol??tica del ajuste neoliberal (Tema central)
Provedor de dados: 122
Autores: Acosta, Alberto.
El objetivo expreso inmediato de las pol??ticas econ??micas ha sido conseguir alguna mejor??a en los niveles de la Reserva Monetaria Internacional, amortiguar el ritmo inflacionario, controlar el tipo de cambio, disminuir los d??ficits del sector p??blico y mejorar la situaci??n de los balances externos. Y el objetivo impl??cito, poco conocido, ha sido la consolidaci??n de una nueva modalidad de acumulaci??n.
Tipo: Art??culo
Palavras-chave: NEOLIBERALISMO; DEUDA EXTERNA; ESTADO; ECONOM??A POL??TICA.
Ano: 1996
URL: http://hdl.handle.net/10469/5924

Integración y comercio [RECURSO ELECTRÓNICO EN LÍNEA]
Provedor de dados: 122
Hoy damos inicio a una nueva etapa de la Revista Integración &amp; Comercio que se caracteriza por importantes cambios respecto del pasado. Con todo, no concebimos a este ajuste de rumbo como una refundación de la revista. Se trata, más bien, de retomar los principios rectores que la guiaron en su desarrollo a lo largo de los últimos 33 años, primero (1976) en las páginas de Integración Latinoamericana y después (1996) con su actual título. El objetivo fundamental es definir aproximaciones renovadas y sintonizadas de dichos principios a las necesidades de los nuevos tiempos y que reconozcan, al mismo tiempo, las capacidades que se han ido instalando en la región progresivamente. Today we open a new chapter in the Integration &amp; Trade Journal, one...
Tipo: Página Web
Palavras-chave: INTEGRACIÓN; COMERCIO; COMERCIO INTERNACIONAL; DESARROLLO ECONÓMICO; ECONOMÍA GLOBAL; MEDIO AMBIENTE; CAMBIO CLIMÁTICO; AMÉRICA LATINA; CARIBE; INTEGRACIÓN; TRADE; INTERNATIONAL TRADE; GLOBAL ECONOMY; ECONOMIC DEVELOPMENT; ENVIRONMENT; CLIMATE CHANGE; LATIN AMERICA; CARIBBEAN.
Ano: 1996
URL: http://www.iadb.org/intal/ICom/30/esp/e_home.html

Recesi??n y expectativa : los escenarios del show (Coyuntura nacional)
Provedor de dados: 122
Autores: Romero C., Marco.
En un contexto de recesi??n e incertidumbre, el r??gimen ha presentado su estrategia econ??mica como un "plan ambicioso", que presupone un conjunto de reformas legales y pretende marcar el futuro del pa??s, especialmente en los campos monetario- cambiarlo y fiscal.
Tipo: Art??culo
Palavras-chave: ECUADOR; RECESI??N ECON??MICA; REFORMAS LEGALES; POL??TICA MONETARIA; POL??TICA FISCAL; GOBIERNO; ECONOMIC RECESSION; LEGAL REFORMS; MONETARY POLICY; FISCAL POLICY; GOVERNMENT.
Ano: 1996
URL: http://hdl.handle.net/10469/5798

Ecuador Debate [no. 38, agosto 1996. REVISTA COMPLETA]
Provedor de dados: 122
Autores: Centro Andino de Acci??n Popular.
Los asuntos de piel, vistos como problema social, pol??tico e ideol??gico que expresa la confrontaci??n e intolerancia ??tnica en ciertas  sociedades, se ha convertido en un tema que en ??pocas de esp??ritu globalizador cobra nuevas dimensiones, precisamente cuando asistimos y tratamos de introducirnos en la gran panacea homogeneizadora y consumista que plantea el nuevo orden mundial. No obstante y parad??jicamente, en esa ola gestada e impulsada desde los pa??ses industrializados, alberga una brutal negaci??n del hombre universal y de uno de sus principales derechos: el de vivir en la diversidad cultural. Estamos hablando de todas las posibles formas de racismos; de las pr??cticas y acciones excluyentes que, sustentadas en ideolog??as supuestamente...
Tipo: Revista
Palavras-chave: POPULISMO ECON??MICO; ELECCIONES; CONFLICTIVIDAD SOCIAL; CONFLICTIVIDAD POL??TICA; GLOBALIZACI??N; RACISMO; IDENTIDAD; AGRICULTURA; VIOLENCIA; ECONOMIC POPULISM; ELECTIONS; SOCIAL UNREST; POLITICAL UNREST; GLOBALIZATION; RACISM; IDENTITY; AGRICULTURE; VIOLENCE; ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/5539

El sector informal, una eterna alternativa al desempleo (Tema central)
Provedor de dados: 122
Autores: S??nchez, Jeannette.
El sector informal aparece como una clara alternativa a la insuficiente demanda laboral de un sector moderno atrofiado y dependiente, adem??s de intensivo en el uso de capital. No es un simple problema de rigideces del mercado, como lo sugiere la teor??a econ??mica prevaleciente. Pese a sus fluctuaciones, que obedecen a distintas coyunturas, hay una perdurabilidad del sector en el tiempo. Solo mirando la magnitud de este hecho, el fen??meno deja de ser coyuntural, para ser un conflicto enraizado en la misma naturaleza de nuestra econom??a. Claramente existe una sobre-poblaci??n, relativa a las necesidades y exigencias de mano de obra del sector capitalista o sector moderno de la econom??a.
Tipo: Art??culo
Palavras-chave: SECTOR INFORMAL; DEMANDA LABORAL; MERCADO LABORAL; DESEMPLEO; CAPITALISMO; MANO DE OBRA; ECONOM??A.
Ano: 1996
URL: http://hdl.handle.net/10469/6002

Hacia una gestión urbana sinérgica (Artículos)
Provedor de dados: 122
Autores: García, Jorge.
El punto de partida de nuestra civilización occidental es la vivencia de una vida enajenada. El desprecio a la vida y el apego a las cosas es el sustento de esta forma de vida. El deseo de convertir la riqueza social y natural en riqueza privada nos ha convertido cada vez más en una amenaza para nuestro propio futuro. Hemos hipotecado nuestra vida en el consumismo, nos hemos venido convirtiendo en depredadores sin límites, derrochamos los escasos recursos del planeta, cosechamos más de lo que sembramos, ocultamos la ganancia fácil y rápida en los profundos surcos del deterioro social y ambiental.
Tipo: Artículo
Palavras-chave: URBANIDAD; REDES DE COMUNICACIÓN; GESTIÓN SINÉRGICA; CULTURA; URBANITY; COMMUNICATION NETWORKS; SYNERGISTIC MANAGEMENT; CULTURE; AMÉRICA LATINA.
Ano: 1996
URL: http://hdl.handle.net/10469/3257

Desarrollo sustentable amazónico : estudio de las políticas de desarrollo planteadas en el marco del tratado de cooperación amazónico (1978 - 1992)
Provedor de dados: 122
Autores: Gómez, Desider Kremling.
Después de más de quince años de su suscripción formal, el Tratado de Cooperación Amazónica, y su estructura institucional, tiene como objetivo elaborar una política de desarrollo a escala integral para la Amazonia. Ello se da bajo un proceso de cooperación internacional que establece las directrices básicas de la coordinación entre las decisiones políticas, las estrategias y planes globales y la aplicación de proyectos de desarrollo en las regiones amazónicas de los ocho países miembros.
Tipo: Tesis de maestría
Palavras-chave: DESARROLLO SUSTENTABLE; REGIÓN AMAZÓNICA; POLÍTICA DE DESARROLLO; ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/682

Reconstrucción de viviendas y reasentamiento de la población afectada en la zona de Paute por el desfogue de las aguas del represamiento de la Josefina (Artículos)
Provedor de dados: 122
Autores: Vásconez, Mario.
En la zona de Paute, el desfogue de las aguas del represamiento de La Josefina afectó una embotelladora de licores y dos plantaciones de flores para la exportación, destruyó 2000 hectáreas dedicadas a actividades agropecuarias y dejó inservibles 112 unidades agrícolas campesinas. También se afectaron 36 fincas vacacionales y residencias de fin de semana. Las fuentes de trabajo asalariado y las actividades productivas rurales sufrieron un serio impacto que se prolongó por meses. Las vías de comunicación, las redes eléctricas y un canal de riego también se destruyeron, ello agravó la reconstrucción y la reactivación económica de la zona.
Tipo: Artículo
Palavras-chave: REPRESAS; EMBALSES; RECONSTRUCCIÓN; ASENTAMIENTOS IRREGULARES; POBLACIÓN; LA JOSEFINA; CANTÓN PAUTE; PROVINCIA DEL AZUAY; ECUADOR; DAMS; RESERVOIRS; RECONSTRUCTION; SETTLEMENTS; POPULATION.
Ano: 1996
URL: http://hdl.handle.net/10469/3260

El racismo en el Ecuador : un problema de identidad
Provedor de dados: 122
Autores: Almeida Vinueza, José.
Es común escuchar que los ecuatorianos "no somos racistas". Esta opinión, al parecer, señala la inexistencia en nuestro país de  normas jurídicas o prácticas institucionales que discriminen a un individuo o grupo humano por su apariencia física. Sin embargo, esta apreciación está muy lejana a la realidad: en el Ecuador existe desprecio racial, fundamentalmente en contra de aquellos ciudadanos denominados displicentemente como "de color", de apariencia "aindiada" o "chola". Los ejemplos abundan: recientemente, ante el avance de la "ola delictiva" en la capital, un alto oficial de la Policía Nacional no tuvo empacho al adjudicar tal incremento a la llegada de migrantes negros, los que, según él, constituían una "raza proclive al crimen". Sintomático también...
Tipo: Tesis de maestría
Palavras-chave: RACISMO; ECUADOR; IDENTIDAD; AMÉRICA LATINA; ESTEREOTIPOS.
Ano: 1996
URL: http://hdl.handle.net/10469/102

Crisis y ajuste en Am??rica Latina : los puntos d??biles de la experiencia vivida (Entrevista)
Provedor de dados: 122
Autores: S??nchez, Jeannette; Le??n, Mauricio.
Actualmente asistimos a una ??poca de grandes cambios econ??micos, sociales y pol??ticos, tanto a nivel mundial como a nivel de Am??rica Latina. Estos acontecimientos han sido explicados como la transici??n de un r??gimen de acumulaci??n fordista a un r??gimen de acumulaci??n flexible (Lipietz, 1985). Esta transici??n implic?? para Am??rica Latina el fin del "fordismo perif??rico" o  industrializaci??n sustitutiva de importaciones y el paso a una nueva estrategia de desarrollo orientada hacia las exportaciones. Las pol??ticas de ajuste  estructural est??n impulsando la transici??n de Am??rica Latina al r??gimen de especializaci??n flexible.
Tipo: Art??culo
Palavras-chave: MODELO NEOLIBERAL; CRISIS ECON??MICA; AM??RICA LATINA; SUSTITUCI??N DE IMPORTACIONES; EXPORTACIONES; COMERCIO EXTERIOR; LIBERALISMO ECON??MICO.
Ano: 1996
URL: http://hdl.handle.net/10469/5933

El discurso del poder (An??lisis)
Provedor de dados: 122
Autores: D??valos, Pablo.
El discurso de poder habla con silencios. Niega referentes y nos presenta un mundo que no es el nuestro, que no puede ser el nuestro, que no tiene esa consistencia hecha de cotidianidad y mesura. De c??lculo y provisi??n. Nos presenta la Historia, nuestra historia, dentro del espect??culo de la noticia: la praxis del ser humano como tramoya y escenario: el actor despojado de sus papeles contemplando absorto, solo, silente, abandonado, el transcurrir de su historia frente a ??l, en la espesura inh??spita de la pantalla de su televisor, en el titular de los peri??dicos, en el habla silente de la radio.
Tipo: Art??culo
Palavras-chave: PALABRA; DISCURSO DEL PODER; MEDIOS DE COMUNICACI??N; RADIO; PRENSA ESCRITA; TELEVISI??N.
Ano: 1996
URL: http://hdl.handle.net/10469/6038

Revista Ciudad Alternativa [no. 12, II Epoca 1996. REVISTA COMPLETA]
Provedor de dados: 122
Autores: Centro de Investigaciones CIUDAD.
Las ciudades, nuestras ciudades, se vuelven cada día más complejas, más contradictorias, más opuestas y fragmentadas en sí mismas; más ajenas, másinasibles; más sujetas a las pasiones del interés que al interés por las pasiones. Queremos vivir bien en las ciudades, ¿y cómo vivimos en ellas?, ¿qué condiciones nos ofrece para sobrellevar el malvivir nuestro de cada día?.   Y esas ciudades, nuestras ciudades, que se llenan de miseria, que se ahogan entre el smog y la especulación inmobiliaria, que se dicen y se muestran y se encubren y se mienten, que se aman y se odian, que se viven y nos matan; esas ciudades, ¿ocurren?, ¿transcurren?, ¿se deben también a la mano invisible que todo 10 puede?, ¿de quién es, a quién responde una tal mano que no se puede o no...
Tipo: Revista
Palavras-chave: CIUDADES; TERRITORIO; MEDIO AMBIENTE; URBANISMO; HÁBITAT URBANO; POLÍTICAS PÚBLICAS; CONTAMINACIÒN AMBIENTAL; RENOVACIÓN URBANA; ECUADOR; MÉXICO; CITIES; TERRITORY; ENVIRONMENT; URBAN; URBAN HABITAT; PUBLIC POLICY; ENVIRONMENTAL POLLUTION; URBAN RENEWAL.
Ano: 1996
URL: http://hdl.handle.net/10469/3706

Im??genes e imagineros : representaciones de los ind??genas ecuatorianos, siglos XIX y XX (Cr??tica bibliogr??fica)
Provedor de dados: 122
Autores: Rivera V??lez, Fredy.
Novedoso, imaginativo, profundo, original y cuestionador son unas de las tantas caracter??sticas que pueden ser atribuidas a este libro. Es un hecho bien conocido por la comunidad acad??mica ecuatoriana y por el p??blico lector, que los aportes te??rico metodol??gicos, realizados desde la antropolog??a y la etnohistoria en las ??ltimas d??cadas, han sido unos de los m??s prolijos en el ??mbito de las ciencias sociales.
Tipo: Art??culo
Palavras-chave: CR??TICA BIBLIOGR??FICA; IMAGINARIOS SOCIALES; IM??GENES; IND??GENAS; ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/6039

La insoportable diferencia del otro: Un enfoque psicoanal??tico sobre el racismo (Tema central)
Provedor de dados: 122
Autores: Dupret, Marie.
El siglo 20 quedar?? tristemente famoso por los m??ltiples genocidios que ocurrieron durante esta ??poca. Tal forma brutal y sistem??tica de eliminaci??n del otro, justificada por las diferencias de sus costumbres, su religi??n, su idioma o su "raza", ha existido desde siempre, pero jam??s hab??a tenido tan amplitud ni un encarnizamiento tan refinado y nunca hab??a sido tan repetitivo.
Tipo: Art??culo
Palavras-chave: GENOCIDIO; NARCICISIMO; IM??GENES EXTERNALIZADAS; GENOCIDE; OUTSOURCED IMAGES.
Ano: 1996
URL: http://hdl.handle.net/10469/6061

Democracia sin sociedad (Cr??tica bibliogr??fica)
Provedor de dados: 122
Autores: Pachano, Sim??n.
Todo discurso sobre la pol??tica es siempre un discurso polftico. Por esta raz??n mis comentarios al libro de Sim??n Pachano se dirigen hacia esa politicidad o implicaciones pol??ticas que est??n inscritas o prescritas en sus textos. Hacer una  cr??tica de los textos desde el mismo pensamiento del autor nos proporcionar??  elementos para un debate ulterior.
Tipo: Art??culo
Palavras-chave: RACIONALIDADES ANTIDEMOCR??TICAS; POL??TICA NORMATIVA; GUBERNAMENTALIDAD; GOBERNABILIDAD; ANTI-DEMOCRATIC RATIONALITIES; STANDARD-SETTING POLITICS; GOVERNMENTALITY; GOVERNANCE.
Ano: 1996
URL: http://hdl.handle.net/10469/6057

Realidad del ajuste define las opciones pol??ticas (Coyuntura pol??tica)
Provedor de dados: 122
Autores: Ibarra, Hern??n.
Al irse evidenciando con mayor nitidez el ajuste, las propuestas de los candidatos giran alrededor del papel del Estado y el mercado. La realidad del ajuste impone una seria limitaci??n a la realizaci??n de promesas. El imaginario y los programas pol??ticos tienen que ser reformulados en funci??n de lo que la realidad sugiere. Esto repercute tambi??n en el espacio pol??tico.
Tipo: Art??culo
Palavras-chave: POL??TICA; ESTADO; MERCADO; CAMPA??AS ELECTORALES; ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/5926

El arte de sobrevivir (Miradas y Voces)
Provedor de dados: 122
Autores: Gazzolo, Ana María.
Artículo tomado de Cuadernos Hispanoamericanos Nº 526, Abril 1994, ICI, España.
Tipo: Artículo
Palavras-chave: LITERATURA; LITERATURE; PERÚ.
Ano: 1996
URL: http://hdl.handle.net/10469/3268

Electrosmog : ondas electromagnéticas contaminan el ambiente (Artículos)
Provedor de dados: 122
Autores: Wild, Leonardo.
¿Por qué casi nadie ha oído del "electrosmog"? ¿Por qué la contaminación del ambiente por medio de ondas electromagnéticas es un tema tan "caliente" que ni las instituciones ecológicas se atreven a tocarlo? ¿Por qué se evitan las investigaciones de uno de los más graves contaminantes de nuestro planeta, el "electrosmog"? La respuesta es simple: porque al contrario de la contaminación causada por la energía atómica (la cual podría ser reemplazada por otras fuentes de energía), la contaminación por "electrosmog" no tiene solución.
Tipo: Artículo
Palavras-chave: ONDAS ELECTROMAGNÉTICAS; MEDIO AMBIENTE; CONTAMINACIÓN; ELECTROMAGNETIC WAVES; ENVIRONMENTAL PROBLEMS; POLLUTION.
Ano: 1996
URL: http://hdl.handle.net/10469/3264

Petróleo, deterioro ambiental y salud : el caso de la comuna de San Carlos
Provedor de dados: 122
Autores: Herrera, Doris M.
Al analizar la serie de impactos que la actividad petrolera ha generado en la comuna San Carlos y la manera en que estos confluyen en una alteración sanitaria en la población, ha sido posible observar un sinnúmero de procesos de presión y respuesta que configuran un comportamiento singular, en una zona de población indígena y colona sometida a similares influjos. En la literatura antropológica ha surgido hace algunos años una critica hacia las perspectivas que mantienen una visión dualista de los procesos sociales y culturales en América Latina entre lo tradicional y lo moderno, la sociedad colonial y el grupo étnico. Afirma que no se registran los cambios y la subordinación en la cultura a nivel de producción, salud, religión, tecnología, comportamiento...
Tipo: Tesis
Palavras-chave: PETRÓLEO; MEDIO AMBIENTE; IMPACTO AMBIENTAL; IMPACTO SOCIOECONÓMICO; SALUD; COMUNA SAN CARLOS; IMPACTO CULTURAL; ECUADOR.
Ano: 1996
URL: http://hdl.handle.net/10469/989

Revista Identidades [no. 18, diciembre 1996. REVISTA COMPLETA]
Provedor de dados: 122
Autores: Instituto Andino de Artes Populares.
Tipo: Revista
Palavras-chave: IDENTIDAD CULTURAL; TEJIDOS; ARTESANÍAS; FIESTAS POPULARES; ORALIDAD; NARRATIVA; VENEZUELA; AMÉRICA LATINA; CULTURAL IDENTITY; FABRICS; CRAFTS; POPULAR FESTIVALS; ORALITY; NARRATIVE; LATIN AMERICA.
Ano: 1996
URL: http://hdl.handle.net/10469/3645

Discurso del Presidente de Cuba, Fidel Castro en Estambul, en la sesión plenaria durante la Cumbre de las Ciudades (Miradas y Voces)
Provedor de dados: 122
Autores: Castro, Fidel.
Tipo: Artículo
Palavras-chave: CUMBRE DE LAS CIUDADES CASTRO; FIDEL DISCURSOS CUBA SUMMIT OF CITIES SPEECHES.
Ano: 1996
URL: http://hdl.handle.net/10469/3267

Derecho, urbanismo y la ciudad del futuro (Artículos)
Provedor de dados: 122
Autores: Bossano, Miguel Ángel.
La ciudad, dentro de sus múltiples facetas se encuentra apoyada por dos ramas del Derecho, el Derecho Municipal por un lado y el Derecho Urbanístico o Urbano por otro. Son dos campos del Derecho Público que a pesar de la gran importancia que día tras día adquieren, aún su autonomía como tal se halla en discusión. Desde una visión totalizante en el mundo del saber jurídico, el municipalismo y el urbanismo no han encontrado eco, ni simpatizantes que lo cultiven a través de su fértil camino. Mucho se debe a la vigencia de la tradicional concepción del Derecho, en que censura y prejuzga la creación de nuevas áreas.
Tipo: Artículo
Palavras-chave: DERECHO MUNICIPAL; DERECHO URBANO; CONTEMPORANEIDAD; MUNICIPAL LAW; URBAN LAW; CONTEMPORARY; ECUADOR; AMÉRICA LATINA.
Ano: 1996
URL: http://hdl.handle.net/10469/3256

Economía de recursos no renovables: los costos ambientales y la pauta intertemporal de estracción de petróleo en el Ecuador
Provedor de dados: 122
Autores: Burbano Rodríguez, Rafael.
El sector petrolero constituye quizás el sector económico más importante en el Ecuador. Basta mirar algunas de las siguientes cifras: El petróleo crudo tiene una participación promedio del 15.71% en el producto interno bruto total en los años 1972-1995. En el año de 1995 el petróleo crudo constituye el 17.30% del PIB total. En los ingresos del presupuesto nacional la participación media, en el período de tiempo señalado, del sector petrolero es del 35.8%. En el año de 1995 el presupuesto nacional contó con el 38.64% de sus ingresos provenientes del sector petrolero. En tal sentido, el presente trabajo de investigación trata sobre la política de extracción petrolera en el Ecuador y su relación con los costos ambientales y los derechos de las generaciones...
Tipo: Tesis
Palavras-chave: RECURSOS NO RENOVABLES; PETRÓLEO; CONTAMINACIÓN; EXTRACCIÓN DE PETRÓLEO; COSTOS.
Ano: 1996
URL: http://hdl.handle.net/10469/591

El Municipio : lugar de la ciudadanía. Apuntes para una discusión (Artículos)
Provedor de dados: 122
Autores: Rodríguez, Alfredo; Winchester, Lucy.
El modelo de gobierno de la ciudad generalmente aceptado hoy día, implica la participación efectiva de la ciudadanía en la gestión de la ciudad y en la resolución de los conflictos sociales. Ello supone que el gobierno de la ciudad no sólo está constituido por las autoridades, sino también por la sociedad civil. Desde tal punto de vista, la contraparte de las autoridades son los ciudadanos. Y esto hace necesario explorar la noción de ciudadanía.
Tipo: Artículo
Palavras-chave: MUNICIPIOS; PARTICIPACIÓN; GOBERNANZA; CIUDADANÍA; MUNICIPALITIES; PARTICIPATION; GOVERNANCE; CITIZENSHIP; AMÉRICA LATINA.
Ano: 1996
URL: http://hdl.handle.net/10469/3254

México : La globalización cultural en una ciudad que se desintegra (Artículos)
Provedor de dados: 122
Autores: García Canclini, Néstor.
Este trabajo quiere pensar en qué sentidos la crisis de una mega ciudad como la de México se articula con las dificultades de las diversas ciencias sociales para construir explicaciones e interpretaciones sobre la vida urbana que trasciendan las perspectivas parciales de cada una.
Tipo: Artículo
Palavras-chave: GLOBALIZACIÓN; CULTURA; GLOBALIZATION; CULTURE; MÉXICO; AMÉRICA LATINA.
Ano: 1996
URL: http://hdl.handle.net/10469/3261

Liderazgo autoritario y violencia urbana : un estudio de caso en Guayaquil (An??lisis)
Provedor de dados: 122
Autores: Larrea Killinger., Cristina.
Los estudios sobre movimientos sociales urbanos en Am??rica Latina, se encontraron siempre con la presencia de otros fen??menos sociales tales como el autoritarismo y la violencia urbana. Quiz?? la plausible idea de destacar pr??cticas alternativas y contestatarias, dej?? de lado la otra cara de la realidad.
Tipo: Art??culo
Palavras-chave: MOVIMIENTOS SOCIALES URBANOS; AM??RICA LATINA; VIOLENCIA URBANA; LIDERAZGO; AUTORITARISMO; GUAYAQUIL (ECUADOR).
Ano: 1996
URL: http://hdl.handle.net/10469/6025

Racismo y vida cotidiana (Tema central)
Provedor de dados: 122
Autores: De la Torre, Carlos.
A diferencia de quienes niegan la importancia del fen??meno del racismo es importante reconocer su vigencia. Adem??s, para comprenderlo y superarlo se tienen que  conocer las experiencias de quienes lo sufren.
Tipo: Art??culo
Palavras-chave: DISCRIMINACI??N; ??LITES ECUATORIANAS; IDENTIDAD MESTIZA; DISCRIMINATION; ECUADORIAN ELITES; MESTIZO IDENTITY.
Ano: 1996
URL: http://hdl.handle.net/10469/6059