Consulta: subjectFacets:"Phenology"
Registros recuperados: 143
Data/hora: 13/06/2024 03:46:41

Pollen dispersal and deposition in an agroecosystem at Province of Buenos Aires, Argentina
Provedor de dados: 66
Autores: Madanes,Nora; Fernández,Celina A.
The aim of this study is to analyze factors and mechanisms involved in dispersal and deposition of airborne pollen captured with Tauber type traps in a 20 x 20 m plot of Helianthus annus cultivation and accompanying weeds and to investigate the relation of these processes with the vegetation structure and dynamics from cultivation to its senescence over a 14 week period. Weekly samples obtained with pollen traps showed a significant change in the deposition due to a filter effect and dispersal patterns due to source variations during the time elapsed. A conceptual and interpretative model for both processes and its relation to pollen sources is proposed. Our results showed that in the study site, the leaves development of Helianthus annus produced a pollen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Airborne pollen; Phenology; Helianthus annus; Weeds.
Ano: 2018
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0011-67932018000100003

Efecto del AG4/7 y anillado en la inducción de estructuras reproductivas y crecimiento del brote en árboles juveniles de Pseudotsuga menziesii.
Provedor de dados: 32
Autores: Muñoz Gutiérrez, Liliana.
Con el propósito de establecer un programa de producción de semilla en Pseudotsuga menziesii y disminuir la presión en la cosecha de semilla en poblaciones naturales de la especie, se evaluó el efecto del ácido giberélico (AG4/7) y del anillado en el tronco en la formación de estructuras reproductivas y en el crecimiento del brote en dos ensayos de campo y uno en macetas con árboles juveniles. Se utilizaron cuatro dosis de AG4/7 (0, 1.27, 2.55 y 5.10 mg cm-2) aplicadas por inyección en el tronco; durante el periodo de crecimiento se midió la longitud del brote y un año después se evaluó el porcentaje de árboles con respuesta, y el número y posición de las estructuras reproductivas. La proporción de árboles con estróbilos femeninos fue de 37.5 % en el...
Palavras-chave: Acido giberélico (AG4/7); Anillado; Fenología; Floración; Producción de semilla; Longitud de brote; Tasa de crecimiento; Gibberellic acid (GA4/7); Bark girdling; Phenology; Flowering; Seed production; Shoot length; Growth rate; Maestría; Forestal.
Ano: 2010
URL: http://hdl.handle.net/10521/61

Demanda nutrimental de cuatro variedades de fresa (Fragaria X annanasa), cultivadas en la región de Zamora Michoacán.
Provedor de dados: 32
Autores: Aguilar Tlatelpa, Martín.
En el presente trabajo se evaluó la demanda nutrimental de las variedades de fresa Albión, Festival, Jacona y Zamorana, durante su ciclo de desarrollo, cultivadas bajo condiciones de túnel de plástico,  en sustrato de fibra de coco y fertirriego, en la zona de Zamora, Michoacán. Se muestreó parte aérea mas corona, para determinar materia seca, concentración nutrimental y contenido nutrimental, durante un periodo de 165 días después del trasplante, con muestreos cada 15 días. En la acumulación de materia seca se observaron algunas diferencias entre variedades a partir del día 90, con mayor contenido de biomasa aérea más corona para Jacona y Festival, menores para Albión e intermedias para Zamorana. La concentración nutrimental presentó variaciones en el...
Palavras-chave: Fragaria x annanasa; Fenología; Concentración; Contenido nutrimental; Nutrición; Phenology; Concentration; Nutrient content; Nutrition; Maestría; Edafología.
Ano: 2011
URL: http://hdl.handle.net/10521/390

Fenología, propagación in vitro y enfermedades del gladiolo en San Martín Texmelucan, Puebla.
Provedor de dados: 32
Autores: González Pérez, Enrique.
En San Martin Texmelucan, Pue., el gladiolo (Gladiolus grandiflorus Hort.) es uno de los cultivos de mayor importancia. En los últimos años ha presentado problemas en su producción, principalmente causados por hongos fitopatogenos y por un desbalance nutrimental. Esta investigación se dividió en tres partes. En la primera el objetivo fue conocer el efecto de la fertilización en la fenología, crecimiento, calidad de flor, rendimiento y sanidad del cultivo de dos variedades de gladiolo; en la segunda se estudió la reproducción in vitro de plantas de gladiolo libres de hongos fitopatógenos, y determinar el mejor ambiente de aclimatación, y en la tercera se identificaron morfológica y molecularmente las especies de Penicillium causantes de la pudrición del...
Palavras-chave: Gladiolo; Fenología; In vitro; Patógenos; Gladiolus; Phenology; Pathogens; Producción de Semillas; Doctorado.
Ano: 2011
URL: http://hdl.handle.net/10521/598

Respuestas agronómicas y fisiológicas del tulipán (Tulipa gesneriana L.) al lantano.
Provedor de dados: 32
Autores: Ramírez Martínez, Maribel.
En esta investigación se presentan resultados de tres experimentos para evaluar el efecto del suministro de lantano (La) en variables agronómicas y fisiológicas de tulipán en solución nutritiva. En el experimento uno se evaluó el efecto del suministro de La (5, 10, 20, 30 y 40 µM) y dos fuentes [LaCl3 y La(NO3)3] durante el ciclo de cultivo de tulipán var. Ile de France, sobre la tasa de crecimiento absoluto (TCA), tasa de crecimiento relativo (TCR), acumulación y distribución de materia seca y acumulación nutrimental. Por efecto de fuente de La no se observaron diferencias significativas. Se observó que la concentración 20 µM La3 aceleró la emergencia, expansión de hoja y floración en comparación con el testigo; por el contrario, concentraciones mayores...
Palavras-chave: Fenología; Materia seca; Concentración; Altura de planta; Diámetro; Clorofilas; Proteínas; Azúcares; Vida en florero; Variedad; Solución preservadora; Phenology; Dry matter; Concentration; Plant height; Diameter; Chlorophyll; Proteins; Sugars; Vase life; Preservation solution; Doctorado; Edafología.
Ano: 2011
URL: http://hdl.handle.net/10521/380

Efecto del AG4/7 y anillado en la inducción de estructuras reproductivas y crecimiento del brote en árboles juveniles de Pseudotsuga menziesii.
Provedor de dados: 32
Autores: Muñoz Gutiérrez, Liliana.
Con el propósito de establecer un programa de producción de semilla en Pseudotsuga menziesii y disminuir la presión en la cosecha de semilla en poblaciones naturales de la especie, se evaluó el efecto del ácido giberélico (AG4/7) y del anillado en el tronco en la formación de estructuras reproductivas y en el crecimiento del brote en dos ensayos de campo y uno en macetas con árboles juveniles. Se utilizaron cuatro dosis de AG4/7 (0, 1.27, 2.55 y 5.10 mg cm-2) aplicadas por inyección en el tronco; durante el periodo de crecimiento se midió la longitud del brote y un año después se evaluó el porcentaje de árboles con respuesta, y el número y posición de las estructuras reproductivas. La proporción de árboles con estróbilos femeninos fue de 37.5 % en el...
Palavras-chave: Acido giberélico (AG4/7); Anillado; Fenología; Floración; Producción de semilla; Longitud de brote; Tasa de crecimiento; Gibberellic acid (GA4/7); Bark girdling; Phenology; Flowering; Seed production; Shoot length; Growth rate; Maestría; Forestal.
Ano: 2010
URL: http://hdl.handle.net/10521/61

Demanda nutrimental de cuatro variedades de fresa (Fragaria X annanasa), cultivadas en la región de Zamora Michoacán.
Provedor de dados: 32
Autores: Aguilar Tlatelpa, Martín.
En el presente trabajo se evaluó la demanda nutrimental de las variedades de fresa Albión, Festival, Jacona y Zamorana, durante su ciclo de desarrollo, cultivadas bajo condiciones de túnel de plástico,  en sustrato de fibra de coco y fertirriego, en la zona de Zamora, Michoacán. Se muestreó parte aérea mas corona, para determinar materia seca, concentración nutrimental y contenido nutrimental, durante un periodo de 165 días después del trasplante, con muestreos cada 15 días. En la acumulación de materia seca se observaron algunas diferencias entre variedades a partir del día 90, con mayor contenido de biomasa aérea más corona para Jacona y Festival, menores para Albión e intermedias para Zamorana. La concentración nutrimental presentó variaciones en el...
Palavras-chave: Fragaria x annanasa; Fenología; Concentración; Contenido nutrimental; Nutrición; Phenology; Concentration; Nutrient content; Nutrition; Maestría; Edafología.
Ano: 2011
URL: http://hdl.handle.net/10521/390

Variación genética y ambiental en un ensayo de progenies de Pinus patula.
Provedor de dados: 32
Autores: Salaya Domínguez, José Manuel.
Se compara el desarrollo de progenies de Pinus patula Schiede ex Schltdl. et Cham.de seis años de edad con diferentes niveles de mejora genética en dos sitios en ambientes contrastantes: Aquixtla, Puebla a 2,930 m (S1) y Acaxochitlán, Hidalgo a 2,260 m  (S2). Primero se evaluaron 36 familias mejoradas en Colombia y Sudáfrica (grupo M) y de 36 nativas (grupo Selectas, S). A los 6 años, la supervivencia fue de 72.7% en S1 y  90% en S2. Las progenies del grupo M fueron estadísticamente superiores en el volumen del tronco en S1 (4.3 vs. 3.6 dm3), mientras que no lo fueron en S2 (10.7 vs. 13.5 dm3). En S1, las heredabilidades (h2i) para las características de crecimiento (altura, diámetro y volumen) variaron de 0.09 a 0.12, mientras que en el S2 de 0.26 a 0.35....
Palavras-chave: Pinus patula; Progenies; Familias; Parámetros genéticos; Diagnóstico nutricional; Fenología; Patrón de crecimiento; Grados-día; Forestal; Doctorado; Families; Genetic parameters; Nutritional diagnosis; Phenology; Growth pattern; Degree days.
Ano: 2012
URL: http://hdl.handle.net/10521/1810

Dinámica de microorganismos rizosféricos y filosféricos de Annona diversifolia Saff. Como respuesta a la estacionalidad, fenología y defoliación en el trópico seco
Provedor de dados: 32
Autores: Cortés Sarabia, Jazmín.
La ilama es una planta frutícola tropical, cuya distribución se encuentra restringida a México,  Centroamérica y parte de Sudamérica y cuyo cultivo es de importancia local. Dado el escaso  conocimiento sobre la dinámica microbiana en este tipo de cultivo, este estudio tuvo como  objetivo evaluar el efecto de la estacionalidad, fenología y defoliación sobre la dinámica  poblacional microbiana en filósfera y rizosfera de plantas de ilama (Annona diversifolia Saff.),  en campo e invernadero. Se evaluaron plantas de tres edades en cuatro épocas del año en San  Antonio de las Huertas, Guerrero. Se evaluaron las unidades formadoras de colonias (UFC) de  hongos, actinomicetos, bacterias totales así como bacterias fijadoras de nitrógeno pertenecientes  a los...
Tipo: Tesis
Palavras-chave: Bacterias fijadoras de nitrógeno; Bacterias solubilizadoras de fosfatos; Fenología; Estacionalidad; Defoliación; Micorriza arbuscular; Maestría; Edafología; Nitrogen-fixing bacteria; Solubilizing phosphate bacteria; Phenology; Seasonality; Defoliation; Arbuscular mycorrhizae.
Ano: 2008
URL: http://hdl.handle.net/10521/1267

Respuestas agronómicas y fisiológicas del tulipán (Tulipa gesneriana L.) al lantano.
Provedor de dados: 32
Autores: Ramírez Martínez, Maribel.
En esta investigación se presentan resultados de tres experimentos para evaluar el efecto del suministro de lantano (La) en variables agronómicas y fisiológicas de tulipán en solución nutritiva. En el experimento uno se evaluó el efecto del suministro de La (5, 10, 20, 30 y 40 µM) y dos fuentes [LaCl3 y La(NO3)3] durante el ciclo de cultivo de tulipán var. Ile de France, sobre la tasa de crecimiento absoluto (TCA), tasa de crecimiento relativo (TCR), acumulación y distribución de materia seca y acumulación nutrimental. Por efecto de fuente de La no se observaron diferencias significativas. Se observó que la concentración 20 µM La3 aceleró la emergencia, expansión de hoja y floración en comparación con el testigo; por el contrario, concentraciones mayores...
Palavras-chave: Fenología; Materia seca; Concentración; Altura de planta; Diámetro; Clorofilas; Proteínas; Azúcares; Vida en florero; Variedad; Solución preservadora; Phenology; Dry matter; Concentration; Plant height; Diameter; Chlorophyll; Proteins; Sugars; Vase life; Preservation solution; Doctorado; Edafología.
Ano: 2011
URL: http://hdl.handle.net/10521/380

Crecimiento y rendimiento del frijol en siembra asociada y prácticas de manejo.
Provedor de dados: 32
Autores: Delgado Martínez, Rafael.
El objetivo de estudio fue determinar si la siembra asociada de frijol, así como las prácticas de manejo limita el crecimiento y rendimiento de frijol. El experimento fue conducido en Montecillo, México, bajo condiciones de temporal, durante los ciclos primavera verano del 2010 y 2011. Se evaluó el rendimiento de ejote y rendimiento de grano (RG) y componentes de frijol, así como rendimiento de grano (RG) y sus componentes en maíz, así mismo se anotaron los días a ocurrencia de las etapas fenológicas del frijol y maíz. Por otra parte, se registraron los índices ambientales y se estimó la eficiencia en el uso del agua radiación y uso de la tierra en ambas especies. Los resultados indican que los días a ocurrencia a las etapas fenológicas en frijol y maíz,...
Palavras-chave: Phaseolus vulgaris L.; Zea mays L.; Fenología; Biomasa; Phenology; Biomass; Botánica; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/2181

Base temperature, thermal time and phyllochron of escarole cultivation
Provedor de dados: 75
Autores: Schmidt,Denise; Caron,Braulio O; Valera,Oscar; Meira,Daniela; Fontana,Daniele C; Zanatta,Thais P; Werner,Carla J; Brezolin,Patricia.
ABSTRACT The objective of this study was to determine the base temperature of escarole and to apply in the phenological analysis of crop during four growing periods. The study was carried out with escarole (Chicorium endivia) ‘Escarola Lisa’ cultivar, at the Federal University of Santa Maria, campus Frederico Westphalen-RS. The experiment was performed in a randomized block design with four sowing periods (P1: 2/15/2015; P2: 04/29/2015, P3: 07/22/2015, P4: 10/16/2015) and 10 replicates, each replicate being one plant. The evaluations consisted of counting the number of leaves, performed three times a week after transplanting date until the harvesting point. To determine the base temperature, the following methods were used: standard deviation in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chicorium endivia; Phenology; Degree-days; Leaf emission.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000400466

Performance of maize seedlings for baby corn production
Provedor de dados: 75
Autores: Costa,Ariane C; Coelho,Fábio C; Garcia,Romário V; Lima,Wallace Luís de; Vivas,Marcelo; Prins,Cláudia L; Rocha,Jaídson G da.
ABSTRACT Using maize seedlings for baby corn production can benefit farmers who have small areas under cultivation. The objective of this study was to evaluate the possibility of using maize seedlings for the production of baby corn. The experiment was carried out in field with four treatments (direct sowing in field; transplanting seedlings 10 days after sowing (DAS); 20 DAS and 30 DAS) in randomized blocks with eight replications. Plants from seedlings 30 DAS were higher than sowing direct in field. Direct sowing in field and seedlings 30 DAS resulted in the largest stands. Sowing direct in field and transplanting seedlings at 20 and 10 DAS presented the highest number of total and commercial ears, while crops obtained from direct sowing in field yielded...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Phenology; Seedling production.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362020000400421

Phenological and physicochemical properties of Pereskia aculeata during cultivation in south Brazil
Provedor de dados: 75
Autores: Silva,Débora O; Seifert,Maurício; Schiedeck,Gustavo; Dode,Juliana S; Nora,Leonardo.
ABSTRACT Pereskia aculeata, known as ora-pro-nobis in Brazil, is native from tropical dry forests. This Cactaceae plant possesses succulent and edible leaves, which contain high amounts of protein, minerals, vitamins and fiber. Nutritional properties and ability to grow under limited water supply of ora-pro-nobis are known, but little information is available about the growth behavior and nutritional composition of this plant when cultivated under temperate humid climate. Therefore, we evaluated the phenology of the plant, including observation of new leaves, flowering, fruiting and relating it with the climate changes. Also, we analyzed some physicochemical characteristics (humidity, leaf area, height, protein, color, total phenolic content and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ora-pro-nobis; Cactaceae; Quiescent state; Phenology.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000300325

Description and ecological notes on Isoctenus malabaris sp. nov. (Araneae, Ctenidae) from southern Brazil
Provedor de dados: 76
Autores: Polotow,Daniele; Brescovit,Antonio D.; Ott,Ricardo.
A new species, Isoctenus malabaris, is described from southern Brazil. This spider was abundantly collected with pitfall traps at Araucaria Forests (Mixed Ombrophilous Forest) domain. The activity of this species was studied in three distinct habitats (primary and secondary forests and silvicultures) during 20 months. A bimodal seasonal activity pattern, of males, was observed. Abundance differences of this species between habitats were not significant.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Neotropical region; Spiders; Taxonomy; Phenology.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212007000200011

Fenologia da laranjeira Sincorá em diferentes porta-enxertos nos tabuleiros costeiros do sul de Sergipe.
Provedor de dados: 14
Autores: MARTINS, C. R.; CARVALHO, H. W. L. de; TEODORO, A. V.; SOARES FILHO, W. dos S.; PASSOS, O. S.; COSTA, E. F. N.; BARRETO, C. F.
Dentre os estados nordestinos produtores de citros, Bahia e Sergipe se destacam com aproximadamente 90% de toda área plantada. Em ambos, os pomares encontram-se implantados majoritariamente na Grande Unidade de Paisagem dos Tabuleiros Costeiros, cujas condições edafoclimáticas desta região (solos coesos e com períodos de escassez hídrica), tornam um ambiente com características especiais, necessitando de práticas e tratos culturais especifi cas ao cultivo dos citros.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Nordeste - Brasil; Lanranja.; Fruta cítrica; Fenologia; Ecologia vegetal; Citricultura; Pomar.; Oranges; Phenology; Plant ecology; Plant physiology.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/985160

Comportamento de cultivares de soja no Sul do Pará.
Provedor de dados: 14
Autores: EL-HUSNY, J. C.; ANDRADE, E. B. de; MEYER, M. C.; ALMEIDA, L. A.; MIRANDA, M. A. C. de.
bitstream/item/34536/1/ORIENTAL-CirTec7.pdf
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Característica agronômica; Agronomic characters; Variety.; Fenologia; Produtividade; Variedade; Soja.; Phenology; Soybeans; Yields.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/377492

Fenologia e valor nutritivo de espécies lenhosas caducifólias da caatinga.
Provedor de dados: 14
Autores: ARAUJO FILHO, J. A. de; CARVALHO, F. C. de.
bitstream/item/26705/1/COT-39.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Woody plant.; Caatinga; Planta lenhosa; Fenologia; Valor nutritivo; Phenology; Nutritive value; Brazil.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/514959

Fenologia de cinco espécies arbóreas de interesse econômico na Floresta Nacional do Tapajós.
Provedor de dados: 14
Autores: CARVALHO, J. O. P. de.
bitstream/item/64491/1/CPATU-ComTec102.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Queda do fruto; Ipê-amarelo; Hymenaeae courbaril; Floresta Nacional do Tapajós; Belterra; Pará; Brasil; Plant development stages.; Bagassa Guianensis; Cumaru; Copaifera Multijuga; Copaíba; Dipteryx Odorata; Etapa de Desenvolvimento da Planta; Essência Florestal; Fenologia; Floração; Jatobá; Semente; Tabebuia Serratifolia; Tatajuba.; Amazonia; Forest trees; Flowering; Phenology; Seeds.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/375902

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

Fenologia reprodutiva de espécies florestais da Amazônia.
Provedor de dados: 14
Autores: GARCIA, L. C.; LIMA, D. de.
Estudo sobre a fenologia de reproducao de especies arboreas (angelim-pedra, copaiba, cupiuba, jatoba, louro-gamela) no Amazonas, visando garantir o estoque regular de semente e atender as necessidades de formacao de mudas dos programas de reflorestamento. Angelim-pedra produz inumeros sementes, que sao dispersas pelo vento; copaiba produz numerosas sementes, que sao dispersas por aves; cupiuba, apesar de produzir bem anualmente, tem suas sementes em estagio de maturacao muito predadas por aves; jatoba tem frutificacao escassa e irregular, os macacos sao os principais predadores; louro-gamela frutifica abundantemente, suas sementes sao relativamente pequenas, o que dificulta a coleta, e os animais predadores alimentam-se dos frutos ainda verde. De acordo...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Angelim-pedra; Nectandra rubra; Louro-gamela; Brasil; Amazonas; Manaus.; Árvore; Cupiúba; Copaíba; Copaifera Multijuga; Dinizia Excelsa; Fenologia; Essência Florestal; Goupia Glabra; Jatobá; Reprodução; Semente.; Hymenaea; Forest trees; Phenology; Reproduction; Seeds.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/666484

Comportamento fenológico de espécies florestais detectado por sistemas aéreos não tripulados.
Provedor de dados: 14
Autores: SANTOS, E. K. M. dos; FIGUEIREDO, S. M. de M.; FIGUEIREDO, E. O.
A fenologia estuda as mudanças ocorridas nas copas das árvores ao longo do ano, bem como analisa os fatores que influenciam tais modificações. O estudo das fenofases possibilita a tomada de decisões em outras áreas da ciência florestal. Este trabalho teve o objetivo de determinar a fenologia de dez espécies madeiráveis a partir da análise de ortofotos obtidas com Unmanned Aircraft Systems (UAS) em uma área de floresta ombrófila densa de terra firme, com vistas à promover o uso de geotecnologias no acompanhamento fenológico. Os resultados obtidos evidenciam que o uso de UAS é eficiente para coletas fenológicas. Porém há fatores que influenciaram nesta coleta, os quais estão relacionados à velocidade do vento, incidência de nuvens, ceras cuticulares,...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Árboles forestales; Vehículos aéreos no tripulados; Drone; Floresta ombrófila densa; Terra firme; Mainland; Embrapa Acre; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Árvore Florestal; Fenologia; Forest trees; Phenology; Unmanned aerial vehicles.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126941

Condições meteorológicas e a fenologia de macieiras da região de Vacaria, RS.
Provedor de dados: 14
Autores: CARDOSO, L. S.; NACHTIGALL, G. R.; BERGAMASCHI, H.; PAULA, V. A. de; BOSCO, L. C.; MARODIN, G. A. B.
bitstream/item/103397/1/Comunicado-Tecnico-145.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Vacaria; Flutuação de temperatura; Maca; Meteorologia; Frio; Clima; Fenologia; Temperatura; Apples; Meteorology and climatology; Cold zones; Climate; Temperature; Phenology.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/988063

Aspectos fenológicos da cultivar de milho BRS-1030 na Região de Paragominas, PA.
Provedor de dados: 14
Autores: ALVES, L. W. R.
bitstream/item/168563/1/CPAF-AP-2017-COT-150-Aspectos-fenologicos.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Rendimento de grão.; Área foliar; Fenologia; Zea mays; Milho.; Leaf area; Phenology; Grain yield.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1079382

Sistema reprodutivo do cupuaçuzeiro (Theobroma grandiflorum): estádios de floração e frutificação.
Provedor de dados: 14
Autores: NEVES, M. do P. H. das; SANTIAGO, E. J. A. de; MÜLLER, C. H.; MOTA, M. G. da C.; NASCIMENTO, T. B. do.
bitstream/item/60187/1/CPATU-PA153.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Plant developmental stages.; Cupuaçu; Etapa de Desenvolvimento da Planta; Fenologia; Reprodução Vegetal; Theobroma Grandiflorum.; Reproduction.; Phenology.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374141

Produção de milho e sorgo em várzea.
Provedor de dados: 14
Autores: PARFITT, J. M. B.
ECOFISIOLOGIA E FENOLOGIA DAS CULTURAS DO MILHO E DO SORGO (Paulo Regis Ferreira da Silva; Gilber Argenta pag 7-18); NUTRIÇÃO, CORREÇÃO DO SOLO E ADUBAÇÃO (Walkyria Bueno Scivittaro pag 19-26); SISTEMAS DE CULTIVO DE MILHO EM VÁRZEA - PLANTIO DIRETO (Francisco de Jesus Vernetti Junior; Algenor da Silva Gomes pag 27-38); IMPLANTAÇÃO DA LAVOURA DE MILHO (Marilda Pereira Porto; Claudio Alberto Sousa da Silva; José Maria Barbat Parfitt; Silvio Steinmetz pag 39-43); CULTIVARES DE MILHO (Marilda Pereira Porto pag 45-55); MANEJO DA CULTURA DO SORGO (Antonio André Amaral Raupp pag 57-59); DRENAGEM E IRRIGAÇÃO PARA MILHO E SORGO CULTIVADOS EM ROTAÇÃO COM ARROZ IRRIGADO (Claudio Alberto Souza da Silva; José Maria Barbat Partitt pag 61-72); ADEQUAÇÃO DA ÁREA PARA A...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Terras baixas.; Milho; Sorgo; Fisiologia Vegetal; Fenologia; Nutrição; Solo; Adubação; Sistema de Cultivo; Doença de Planta; Drenagem; Irrigação; Semeadura; Erva daninha; Praga de planta; Secagem; Armazenamento; Varzea; Produção.; Corn; Sorghum (Poaceae); Plant physiology; Phenology; Nutrient management; Cropping systems; Plant diseases and disorders; Drainage; Irrigation; Sowing; Weeds; Drying; Storage; Lowlands.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/743586

Fenologia, produção e características químicas dos frutos de acessos de umbuzeiro (Spondias tuberosa Arruda) em Petrolina, PE.
Provedor de dados: 14
Autores: AIDAR, S. de T.; CHAVES, A. R. de M.; LIMA, M. A. C. de; ARAUJO, F. P. de.
O objetivo deste estudo foi caracterizar a fenologia, a produção e os teores de compostos químicos associados à qualidade de frutos de acessos de umbuzeiro (Spondias tuberosa Arruda) na Embrapa Semiárido, Petrolina, Pernambuco, sob condição de dependência de chuva. As avaliações foram realizadas nas safras 2012-2013, 2013-2014 e 2014-2015, caracterizadas por índices de precipitação pluviométrica abaixo da média histórica. Eventos de floração foram registrados de setembro a janeiro. O enfolhamento ocorreu em resposta às primeiras chuvas dentro de cada ano-safra. A produção concentrou-se nos meses de março a abril. Os acessos BGU 37, BGU 48, BGU 52 e BGU 55 apresentaram maior potencial para a produção de frutos, com características de qualidade química de...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Caracterização de acessos; Qualidade do fruto; Umbu; Fenologia; Spondias Tuberosa; Recurso Genético; Spondias; Genetic resources; Phenology.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132327

Fruticultura tropical: o cupuaçuzeiro: cultivo, beneficiamento e utilização do fruto.
Provedor de dados: 14
Autores: CALZAVARA, B. B. G.; MÜLLER, C. H.; KAHWAGE, O. de N. da C.
bitstream/item/63462/1/CPATU-Doc32.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cultivo; Mudas; Cultivation; Production; Cultting; Plantation.; Beneficiamento; Cupuaçu; Fenologia; Plantio; Produção; Theobroma Grandiflorum.; Fruit growing; Planting.; Phenology.
Ano: 1984
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/387253

Efeito de diferentes sistemas de preparo de solo na producao de soja e milho em um latossolo vermelho-escuro argiloso II. Producao de graos e dados fenologicos.
Provedor de dados: 14
Autores: AMABILE, R. F.; RESCK, D. V. S.
bitstream/item/102143/1/pesq-32.pdf
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Latossolo vermelho-escuro; Cultivar; C-606; Doko; Maize; Production; Dark-red latosol.; Cerrado; Fenologia; Grão; Glycine Max; Manejo do Solo; Milho; Produção; Soja; Zea Mays.; Grain crops; Phenology; Soybeans; Soil management; Varieties.
Ano: 1990
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/549372

Assessing the sensitivity of bivalve populations to global warming using an individual-based modelling approach
Provedor de dados: 5
Autores: Thomas, Yoann; Bacher, Cedric.
Climate change exposes benthic species populations in coastal ecosystems to a combination of different stressors (e.g. warming, acidification and eutrophication), threatening the sustainability of the ecological functions they provide. Thermal stress appears to be one of the strongest drivers impacting marine ecosystems, acting across a wide range of scales, from individual metabolic performances to geographic distribution of populations. Accounting for and integrating the response of species functional traits to thermal stress is therefore a necessary step in predicting how populations will respond to the warming expected in coming decades. Here, we developed an individual‐based population model using a mechanistic formulation of metabolic processes...
Tipo: Text
Palavras-chave: Benthic species; Biogeography; Climate scenario; Dynamic energy budget; Global warming; Phenology; Population dynamics; Temperature tolerance.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00450/56163/57710.pdf

Resource Competition Affects Plankton Community Structure; Evidence from Trait-Based Modeling
Provedor de dados: 5
Autores: Sourisseau, Marc; Le Guennec, Valerie; Le Gland, Guillaume; Plus, Martin; Chapelle, Annie.
Understanding the phenology of phytoplankton species is still a challenge and despite a lot of theoretical work on competition for ressources this process is under-represented in deterministic models. To study the main driver of the species selection, we thus used a trait-based model that keeps phenotypic variability through physiological trait parameterization. We next validate the results by using a key species, the toxic dinoflagellate Alexandrium minutum. Due to their monitoring, we show that harmful algae are ideal models for studying ecological niches and for contributing to this more global challenge. As a first step, a dimensionless model of an estuary (France) was built with water temperature and water exchanges deduced from a hydro-dynamic model....
Tipo: Text
Palavras-chave: Droop; Competition; Inter-specific; Estuary; Bay of Brest; Alexandrium minutum; Phenology; Niches.
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00373/48414/48624.pdf

Towards Chl-a Bloom Understanding by EM-based Unsupervised Event Detection
Provedor de dados: 5
Autores: Poisson Caillault, Emilie; Lefebvre, Alain.
Marine water quality monitoring and subsequent management require to know when a specific event like harmful algae bloom may occur and which environmental conditions and pressures lead to this event. So, event detection and its dynamic understanding are crucial to adapt strategy. An algorithm is proposed to identify curves mixture and their dynamics features - initiation, duration, peaks and ends of the event. The approach is fully unsupervised, it requires no tuning parameters and is based on Expectation Maximization process to estimate the most robust mixture according to fixed criteria. A complete framework is proposed to deal with a univariate time series with missing data. The approach is applied on Chlorophyll- a series collected weekly since 1989....
Tipo: Text
Palavras-chave: Time series; Event detection; Expectation-Maximisation; Phenology; Chlorophyll-a; Phaeocystis.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00435/54679/56097.pdf

Revision of the western Palaearctic species of Aleiodes Wesmael (Hymenoptera, Braconidae, Rogadinae). Part 1: Introduction, key to species groups, outlying distinctive species, and revisionary notes on some further species
Provedor de dados: 16
Autores: Achterberg, C. van; Shaw, M.R.
Seven new species of the genus Aleiodes Wesmael, 1838 (Braconidae: Rogadinae) are described and illustrated: A. abraxanae sp. n., A. angustipterus sp. n., A. artesiariae sp. n., A. carminatus sp. n., A. diarsianae sp. n., A. leptofemur sp. n., and A. ryrholmi sp. n. A neotype is designated for each of Aleiodes circumscriptus (Nees, 1834) and A. pictus (Herrich-Schäffer, 1838), and both species are redescribed and illustrated. Aleiodes ochraceus Hellén, 1927 (not A. ochraceus (Curtis, 1834)) is renamed as A. curticornis nom. n. &amp; stat. rev., and redescribed and illustrated. Aleiodes bistrigatus Roman, 1917, A. nigriceps Wesmael, 1838, and A. reticulatus (Noskiewicz, 1956), are re-instated as valid species. A lectotype is designated for Aleiodes...
Tipo: Article / Letter to the editor
Palavras-chave: Aleiodes; Host range; Biology; Distribution; Distribution; Phenology.
Ano: 2016
URL: http://www.repository.naturalis.nl/record/625491

Spatial and temporal distribution of caddisfly larvae in two lowland streams in The Netherlands (Trichoptera)
Provedor de dados: 16
Autores: Franken, R.J.M.; Klutman, A.G.M.; Tempelman, D.
Caddisflies are a species rich insect order. The adults are moth-like, but their wings bear hairs instead of scales. The larvae are aquatic and live in self-constructed cases, made of plant material, sand or debris. The species are used as indicators of water quality, but much is still not known about their biology and ecology. In this paper the preferred substrates and phenology of the larvae of 13 species are described, using the data of a survey of two lowland streams in the east of the Netherlands.
Tipo: Article / Letter to the editor
Palavras-chave: Trichoptera; Ecology; Phenology; Netherlands; 42.75.
Ano: 2014
URL: http://www.repository.naturalis.nl/record/625699

Morphological difference between upperside and underside leaf-mining larvae of Phyllocnistis Unipunctella (Stephens, 1834) (Lep. Gracillariidae) and its changing phenology
Provedor de dados: 16
Autores: Jordan, M.P.; Langmaid, J.R.; Doorenweerd, C.
Larvae of Phyllocnistis unipunctella (Stephens) mining the upperside and underside of leaves of Populus spp. were compared in terms of gross morphology and the COI DNA barcoding section of mitochondrial DNA. It was discovered that larvae feeding on the underside did not show the dark pigmentation of the prothoracic plate as described in the literature. Larvae were found feeding two months earlier than normal and at least one extra generation was observed. More work isrequired to determine the possibility ofspeciation.
Tipo: Article / Letter to the editor
Palavras-chave: Lepidoptera; Prothoracic plate; DNA barcoding; Phenology.
Ano: 2016
URL: http://www.repository.naturalis.nl/record/610600

Nesting behavior of Podium denticulatum Smith (Hymenoptera: Sphecidae)
Provedor de dados: 82
Autores: Ribeiro,Favi; Garófalo,Carlos A.
The nesting behavior of Podium denticulatum Smith was studied on the campus of Ribeirão Preto of the Universidade de São Paulo, SP, Brazil, from September 2003 to August 2005. The wasps established their nests in bamboo canes ranging from 11.4 cm to 26.2 cm in length and from 0.7 cm to 1.8 cm in internal diameter. Podium denticulatum nested almost exclusively in the hot and wet season (September-April), producing at least five generations per year. The cell provisioning was made with adult and nymphal cockroaches (Blattellidae) which were arranged venter-up and with the head inward toward the inner end of the cell. The construction of a temporary closure occurred in cells that took more than one day to be provisioned. The cells provisioned with a greater...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Trap-nest; Solitary wasp; Phenology; Natural enemy.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000600006

How does diet influence the reproductive seasonality of tropical freshwater fish?: A case study of a characin in a tropical mountain river
Provedor de dados: 83
Autores: Ballesteros,Tania M.; Torres-Mejia,Mauricio; Ramírez-Pinilla,Martha P.
Seasonal breeding of tropical freshwater fish may be synchronized with periods of high food consumption. We explored this hypothesis by studying the relationship between diet and reproductive activity of Creagrutus guanes (Teleostei, Characidae). Our results showed that C. guanes had a generalist and omnivorous diet dominated by aquatic insects (mainly Diptera larvae) and seeds. Creagrutus guanes did not show intersexual or ontogenetic variation in diet. Peaks of feeding activity during rainy months were not synchronized with breeding in dry months. Our results do not support the hypothesis that the reproductive season has to be synchronized with high food consumption. We discussed the hypothesis fat reserves may be an important factor for the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feeding ecology; Phenology; Characidae; Fat reserves; Breeding; Creagrutus guanes.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252009000400019

Reproductive seasonality of Geophagus steindachneri Eigenmann &amp;amp; Hildebrand, 1922 (Perciformes: Cichlidae) in a tropical mountain river
Provedor de dados: 83
Autores: Rangel-Serpa,Federico; Torres,Mauricio.
Reproductive seasonality in tropical freshwater fishes is strongly influenced by rainfall. In lowlands, floods spill laterally to floodplains and fishes usually breed during the flooding season. In mountain rivers, floods are sudden and flush out aquatic organisms. Fishes in mountain rivers usually breed during dry seasons, what has been hypothesized as a strategy to reduce mortality due to strong floods. If that is the case, mouth-brooding fishes should suffer less from strong floods and should have more prolonged breeding seasons in mountain rivers. Here we investigated the breeding activity of a mouth-brooding cichlid (Geophagus steindachneri) in a mountain river in Colombia using three kinds of evidence: monthly variation of gonad weight, macroscopic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Limnology; Parental care; Phenology; Rainfall; Spawning.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000200421

モンゴル草本植物のフェノロジーとバイオマスの年々変動
Provedor de dados: 19
Autores: 近藤, 昭彦; 開發, 一郎; 平田, 昌弘; ドルゴスレン, アザヤ; KONDOH, Akihiko; KAIHOTSU, Ichirow; HIRATA, Masahiro; DORGORSUREN, Azzaya.
http://www.jaals.net/学会誌バックナンバー-投稿規定/
Palavras-chave: Mongolia; Grassland vegetation; Phenology; Biomass.
Ano: 2005
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3269

Competition between the sibling species &lt;i&gt;Tisbe holothuriae&lt;/i&gt; and &lt;i&gt;T. battagliai&lt;/i&gt; (Harpacticoida)
Provedor de dados: 27
Autores: Bergmans, M.; Janssens, P.P.M.
The influence of the salinity on the performance of the sibling species &lt;i&gt;Tisbe holothuriae&lt;/i&gt; and &lt;i&gt;T. battagliai&lt;/i&gt; in pure and mixed cultures was studied, using laboratory stocks adapted to 32 pro mille for over 175 generations. Cohort studies show that &lt;i&gt;T. holothuriae&lt;/i&gt; has higher growth rates (R&lt;sub&gt;0&lt;/sub&gt; and r) at 32 pro mille, &lt;i&gt;T. battagliai&lt;/i&gt; at 20 pro mille. The latter's life cycle is much less affected by the difference in salinity. 'De Wit' replacement series were used to study competitive interactions. Without water renewal, &lt;i&gt;T. holothuriae&lt;/i&gt; eliminates its sibling species in less than 2 generations, apparently through chemical interference. With water...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Competition; Growth; Marine crustaceans; Phenology; Salinity; Sexual reproduction; Sibling species; Harpacticoida; Tisbe battagliai; Tisbe holothuriae.
Ano: 1988
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3121

Reproductive phenology of tree species in a fragmented area of Atlantic Forest, Rio de Janeiro State, Brazil
Provedor de dados: 190
Autores: Freire, Juliana Müller; de Azevedo, Marina Coimbra; Cunha, Carlos Fernando da; da Silva, Telmo Félix; Resende, Alexander Silva de.
Phenological studies can support actions of seed collection and recovery of degraded areas, contributing to the conservation of forest species. This study aimed to understand the timing of flowering and fruiting of 21 native tree species in fragmented area of Atlantic Forest in Itaboraí, Rio de Janeiro State, Brazil. Ninety one trees were monitored monthly, from January to December of 2011. Most species flowered in the late dry season and early rainy season, and presented a moderate negative correlation between flowering and photoperiod. There were two peaks of fruiting: March-April to zoochoric species and September-October for not zoochoric species, with positive correlation between rainfall and fruiting of zoochoric species. There was a high incidence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flowering; Fruiting; Phenology; Seeds Recursos Florestais  Botânica  Silvicultura Fenologia; Floração; Frutificação; Sementes.
Ano: 2013
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/454

Cardinal temperatures and thermal requirements for the initial development of two Brazilian native species
Provedor de dados: 86
Autores: Ferreira,Mábele de Cássia; Martins,Fabrina Bolzan; Florêncio,Gabriel Wilson Lorena; Silva,João Pedro Guimarães Cândido; Pasin,Liliana Auxiliadora Avelar Pereira.
Abstract: The objective of this work was to estimate the cardinal temperatures and to quantify the thermal requirements for the initial development of seedlings of the native tree species Citharexylum myrianthum and Bixa orellana. A field experiment was carried out in a completely randomized design, in a 2?12 factorial arrangement (2 tree species and 12 sowing dates), with five replicates. The base, optimum, and maximum temperatures for the development of C. myrianthum were 11.4, 18.1, and 36.6°C, and, for B. orellana, 12.0, 18.4, and 46.4°C. The thermal requirements for the development of C. myrianthum was 66.7°C day per leaf, and, for B. orellana, 82.5°C day per leaf. In the initial development, B. orellana shows a large thermal amplitude and is tolerant...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bixa orellana; Citharexylum myrianthum; Air temperature; Leaf appearance; Phenology.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000100903

Long-term changes in rice development in Southern Brazil, during the last ten decades
Provedor de dados: 86
Autores: Streck,Nereu Augusto; Uhlmann,Lilian Osmari; Gabriel,Luana Fernandes.
The objective of this work was to test long-term trends in the duration of rice development phases in Santa Maria, RS, Brazil. The duration from emergence to V3 (EM-V3), emergence to panicle differentiation (EM-R1), emergence to anthesis (EM-R4), and emergence to all grains with brown hull (EM-R9) was calculated using leaf appearance and developmental models for four rice cultivars (IRGA 421, IRGA 417, EPAGRI 109, and EEA 406), for the period from 1912 to 2011, considering three emergence dates (early, mid, and late). The trend of the time series was tested with the non-parametric Mann-Kendall test, and the magnitude of the trend was estimated with simple linear regression. Rice development has changed over the last ten decades in this location, leading to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oryza sativa; Development rate; Global warming; Growing season; Maturity group; Modeling; Phenology.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000600001

Produtividade simulada de tubérculos de batata em cenários de mudanças climáticas
Provedor de dados: 86
Autores: Fagundes,Joelma Dutra; Streck,Nereu Augusto; Bisognin,Dilson Antônio; Schwantes,Ana Paula; Alberto,Cleber Maus.
The objective of this study was to simulate potato (Solanum tuberosum) tuber yield in different climate change scenarios of increased carbon dioxide concentration [CO2] and air temperature, considering symmetric and asymmetric increases in minimum and maximum daily air temperatures. Spitters model was used to simulate Asterix cultivar tuber yield considering two growing seasons (spring and fall) recommended for Santa Maria, state of Rio Grande do Sul, Brazil. In each growing season, five planting dates were evaluated in climate scenarios of a hundred years with no increase in [CO2] and temperature (current scenario), and in scenarios with doubling [CO2] and temperature increases of 0, 1, 2, 3, 4, 5 and 6ºC. A symmetric increase of 4ºC and an asymmetric...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Solanum tuberosum; Global warming; Carbon dioxide concentration; Phenology; Climate risk simulation.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2010000400002

Characterization and multivariate classification of grapes and wines of two Cabernet Sauvignon clones
Provedor de dados: 86
Autores: Burin,Vívian Maria; Silva,Aparecido Lima da; Malinovski,Luciane Isabel; Rosier,Jean Pierre; Falcão,Leila Denise; Bordignon-Luiz,Marilde Teresinha.
The objective of this work was to assess and characterize two clones, 169 and 685, of Cabernet Sauvignon grapes and to evaluate the wine produced from these grapes. The experiment was carried out in São Joaquim, SC, Brazil, during the 2009 harvest season. During grape ripening, the evolution of physical-chemical properties, phenolic compounds, organic acids, and anthocyanins was evaluated. During grape harvest, yield components were determined for each clone. Individual and total phenolics, individual and total anthocyanins, and antioxidant activity were evaluated for wine. The clones were also assessed regarding the duration of their phenological cycle. During ripening, the evolution of phenolic compounds and of physical-chemical parameters was similar...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phenolic compounds; Phenology; Ripeness.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011000500004

Growth and development of Conyza bonariensis based on days or thermal units
Provedor de dados: 86
Autores: Soares,Daniel Jorge; Oliveira,Wladecir Salles de; Uzuele,Elvio Lorençato; Carvalho,Saul Jorge Pinto de; Ovejero,Ramiro Fernando Lopez; Christoffoleti,Pedro Jacob.
Abstract: The objective of this work was to evaluate the growth and development of a glyphosate-resistant population of Conyza bonariensis in different sowing dates (autumn, winter, and spring) and in two agricultural environments, based on days or thermal units. Five experiments were performed in two agricultural environments in Brazil: two in the municipality of Não-Me-Toque, in the state of Rio Grande do Sul - with sowings in July and September 2011; and three in the municipality of Santa Cruz das Palmeiras, in the state of São Paulo ‒ with sowings in April, July, and September 2011. In each trial, ten evaluations of the phenological development and total dry mass of C.bonariensis were performed, fitting these variables to a unit of time in days or...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hairy fleabane; Dry mass; Growing degree days; Modeling; Phenology; Weed biology.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000100045

Thermal time in sprinkler-irrigated lowland rice
Provedor de dados: 86
Autores: Bartz,Alex Cristiano; Muttoni,Martina; Alberto,Cleber Maus; Streck,Nereu Augusto; Machado,Geter Alves; Giacomeli,Robson; Helgueira,Diogo Balbé; Moura,Diogo da Silva.
Abstract: The objective of this work was to evaluate methods of thermal time calculation and the duration of the development stages of lowland rice (Oryza sativa) irrigated by sprinkling. The experiment was conducted during three growing seasons (2010/2011, 2011/2012, and 2014/2015), with five irrigation water depths, six cultivars, and four replicates. Six methods of thermal time calculation were tested: two using the minimum basal temperature; two using the minimum and optimum temperatures; and two using the minimum, optimum, and maximum basal temperatures. For the thermal time calculation, the crop development cycle was divided into the vegetative, reproductive, and grain-filling phases. The methods that used the three cardinal temperatures showed the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oryza sativa; Degree-day; Irrigation water depth; Phenology; Water availability.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000700475

Impact of increasing mean air temperature on the development of rice and red rice
Provedor de dados: 86
Autores: Lago,Isabel; Streck,Nereu Augusto; Alberto,Cleber Maus; Oliveira,Felipe Brendler; Paula,Gizelli Moiano de.
The objective of this study was to assess the development response of cultivated rice and red rice to different increases in minimum and maximum daily air temperatures, in Santa Maria, Rio Grande do Sul State, Brazil. One hundred years climate scenarios of temperatures 0, +1, +2, +3, +4, and +5ºC, with symmetric and asymmetric increases in minimum and maximum daily air temperatures were created, using the LARS-WG Weather Generator, and a 1969-2003 database. Nine cultivated rice genotypes (IRGA 421, IRGA 416, IRGA 417, IRGA 420, BRS 7 TAIM, BR-IRGA 409, EPAGRI 109, EEA 406 and a hybrid), and two red rice biotypes (awned black hull-ABHRR, and awned yellow hull-AYHRR) were used. The dates of panicle differentiation (R1), anthesis (R4), and all grains with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Oryza sativa; Global warming; Phenology; Simulation; Weeds.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008001100001

Biomass production and grain yield of three sorghum lines difering in drought resistance
Provedor de dados: 85
Autores: Castro-Nava,S; Ortiz-Cereceres,J; Mendoza-Castillo,M del C; Huerta,AJ.
The aim of this study was to determine the eficiency of drought classification criteria that we previously reported for our grain sorghum genotypes. Two tolerant genotypes of grain sorghum &amp;#091;Sorghum bicolor (L.) Moench&amp;#093; (UAT-124 and UAT-152) and one susceptible (UAT-30) were subjected to drought under greenhouse conditions at either panicle initiation, flag leaf, or flowering. Results showed that the effects of drought depended on when drought stress occurred during development. Biomass of the three sorghum genotypes was significantly reduced at the flag leaf stage (48%) by drought stress, but the greatest reduction occurred in the susceptible genotype UAT-30 (71%). Results showed that biomass accumulation for UAT-124 and UAT-30 was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sorghum bicolor L. Moench; Water stress; Drought; Phenology; Biomass accumulation; Grain yield.
Ano: 2012
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572012000200002

Pitaya (Stenocereus stellatus) fruit growth is associated to wet season in Mexican dry tropic
Provedor de dados: 85
Autores: García-Suárez,F; Carreto-Montoya,L; Cárdenas-Navarro,R; Díaz-Pérez,JC; López-Gómez,R.
In this work we contribute to the knowledge of the reproductive phenology of Stenocereus stellatus (Pfeiffer,Riccobono), a columnar cactus that produces fruits of high commercial perspectives known as "pitayas". This kind of pitayas are produced for local commercialization in back orchards in some regions of the Mexican dry tropics. These fruits are produced only in the apical part of the cactus "arms". Our results show that fruit development of pitayas is highly associated to the rainy season of the year. This behavior is different from the reproductive strategy of other columnar cactus species that produce other kinds of pitaya in the same ecological region.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Columnar cacti; Pitaya fruit; Phenology; Water stress.
Ano: 2007
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572007000100002

Control of ALS- and EPSPS-Resistant Amaranthus palmeri by Alternative Herbicides Applied in PRE- and POST-Emergence
Provedor de dados: 87
Autores: GONÇALVES NETTO,A.; NICOLAI,M.; CARVALHO,S.J.P.; MALARDO,M.R.; LÓPEZ-OVEJERO,R.F.; CHRISTOFFOLETI,P.J.
ABSTRACT: The emergence of resistant biotypes of the Amaranthus palmeri species in cotton production areas of the state of Mato Grosso, Brazil, generated the need for correct identification of this species and information on viable herbicidal tools for their management. Thus, greenhouse experiments were conducted to evaluate the efficacy of alternative herbicides applied to A. palmeri in pre and post emergence. A randomized block design with four replications was used. The efficacy of herbicides applied in pre emergence was evaluate in two experiments, one in a clayey and other in a sandy soil; 9 herbicide treatments (8 with herbicide application and a control without application) were applied on each soil. Subsequently, two experiments with different...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Caruru; Weed control; Resistance; Phenology; Soil texture.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582019000100193

Growth and development of sourgrass based on days or thermal units
Provedor de dados: 87
Autores: Marques,B.S.; Silva,A.P.P.; Lima,R.S.O.; Machado,E.C.R.; Gonçalves,M.F.; Carvalho,S.J.P.
This work was carried out with the objective of evaluating growth and development of sourgrass (Digitaris insularis) based on days or thermal units (growing degree days - GDD). Two independent trials were developed aiming to quantify the species' phenological development and total dry matter accumulation in increasing or decreasing photoperiod conditions. Plants were grown in 4 L plastic pots, filled with commercial substrate, adequately fertilized. In each trial, nine growth evaluations were carried out, with three replicates. Phenological development of sourgrass was correctly fit to time scale in days or GDD, through linear equation of first degree. Sourgrass has slow initial growth, followed by exponential dry matter accumulation, in increasing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Digitaria insularis; Growing degree days; Phenology; Dry matter; Biology.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000300003

Growth and Development of Purple Nutsedge Based on Days or Thermal Units
Provedor de dados: 87
Autores: Lima,R.S.O.; Machado,E.C.R.; Silva,A.P.P.; Marques,B.S.; Gonçalves,M.F.; Carvalho,S.J.P.
This work was carried out with the objective of elaborating mathematical models to predict growth and development of purple nutsedge (Cyperus rotundus) based on days or accumulated thermal units (growing degree days). Thus, two independent trials were developed, the first with a decreasing photoperiod (March to July) and the second with an increasing photoperiod (August to November). In each trial, ten assessments of plant growth and development were performed, quantifying total dry matter and the species phenology. After that, phenology was fit to first degree equations, considering individual trials or their grouping. In the same way, the total dry matter was fit to logistic-type models. In all regressions four temporal scales possibilities were assessed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cyperus rotundus; Growing degree days; Phenology; Base temperature; Modeling.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582015000200165

Understanding the Competitive Effects of Blessed Milkthistle Densities on Wheat
Provedor de dados: 87
Autores: REHMAN,A.; QAMAR,R.; SAFDAR,M.E.; JAVEED,H.M.R.; SHEHZAD,M.; ALI,M.; ASIF,M.; TARAR,Z.H.; AHMED,A.; JAMIL,M.
ABSTRACT: Weed-induced yield loss in wheat crop is a great threat to food security in Pakistan. A comprehensive understanding of weed-crop competition is very important to develop sustainable and cost-effective weed management. For this purpose, two-year field studies were conducted to determine the effect of different blessed milkthistle densities on the phenology and yield of wheat crop in a rice-wheat cropping scheme in Sargodha, Pakistan during 2013-2014 and 2014-2015. The experiment comprised seven treatments: control (weed free), weedy check (weedy without any control) and blessed milkthistle densities of 5, 10, 15, 20 and 25 plants m-2. In response to increasing weed density, a gradual reduction in yield and yield-related traits of wheat was noted....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blessed milkthistle; Density; Phenology; Rice-wheat cropping systems; Yield.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582020000100210

Growth and development of honey weed based on days or thermal units
Provedor de dados: 87
Autores: Silva,A.P.P.; Marques,B.S.; Lima,R.S.O.; Machado,E.C.R.; Gonçalves,M.F.; Carvalho,S.J.P.
This work was carried out with the objective of evaluating the growth and development of honey weed (Leonurus sibiricus) based on days or thermal units (growing degree days). Thus, two independent trials were developed to quantify the phenological development and total dry mass accumulation in increasing or decreasing photoperiod conditions. Considering only one growing season, honey weed phenological development was perfectly fit to day scale or growing degree days, but with no equivalence between seasons, with the plants developing faster at increasing photoperiods, and flowering 100 days after seeding. Even day-time scale or thermal units were not able to estimate general honey weed phenology during the different seasons of the year. In any growing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leonurus sibiricus; Growing degree days; Phenology; Dry mass; Biology.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582014000100009

Improving Agronomic Structure in Econometric Models of Climate Change Impacts
Provedor de dados: 31
Autores: Ortiz-Bobea,   Ariel.
Economists are relying on agronomic concepts to construct weather or climate independent variables and improve the reliability and efficiency of econometric models of climate change impact on U.S. agriculture. The use of cumulative heat measures in agronomy (growing degree-days), has recently served as a basis for the introduction of plurimonthly calendar heat variables in these models. However, season-long weather conditions seem at odds with conventional agronomic wisdom that emphasizes crucial differences in crop stage sensitivity to environmental stress. In this paper I show that weather variables matched to key corn development stages provide an enhanced and more stable fit than their calendar counterparts. More importantly, the proposed...
Tipo: Conference Paper or Presentation
Palavras-chave: Agriculture; Climate change; Corn; Degree-days; Phenology; Proxy; Yield; Production Economics; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy; Q54; C23.
Ano: 2011
URL: http://purl.umn.edu/103656

Reproductive phenology of Melocactus (Cactaceae) species from Chapada Diamantina, Bahia, Brazil
Provedor de dados: 88
Autores: Fonseca,Rosineide Braz Santos; Funch,Ligia Silveira; Borba,Eduardo Leite.
This paper discusses the phenological strategies of Melocactus glaucescens Buining &amp;amp; Brederoo, M. paucispinus G. Heimen &amp;amp; R. Paul, M. ernestii Vaupel and M. ×albicephalus Buining &amp;amp; Brederoo, species from Chapada Diamantina, northeastern Brazil. Melocactus glaucescens, M. ernestii and M. ×albicephalus occur sympatrically in an area of "caatinga"/"cerrado" vegetation, and M. paucispinus in an area of "cerrado"/"campo rupestre". The superposition of flowering in these sympatric taxa was compared and analyzed. The phenology of M. paucispinus was correlated with both abiotic and biotic factors. Flowering of M. glaucescens and M. ×albicephalus were observed to be continuous (though with moderate peaks of activity), while fruiting was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cactaceae; Hybridization; Melocactus; Phenology; Reproductive biology.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000200006

Biologia reprodutiva de Butia capitata (Martius) Beccari var. odorata (Palmae) na restinga do município de Laguna, SC
Provedor de dados: 88
Autores: ROSA,LIÉGE; CASTELLANI,TANIA TARABINI; REIS,ADEMIR.
Este estudo avaliou as características morfológicas, fenológicas e aspectos da biologia reprodutiva dos indivíduos de uma população de Butia capitata em uma restinga no litoral de Laguna, SC. Numa área de 2500 m2, foram registradas 215 plantas com altura média total de 86,39 cm (S= 27,39; min= 1 e máx= 311). Os indivíduos com altura igual ou inferior a 20 cm não apresentavam evidências de reprodução. A porcentagem de plantas reprodutivas aumentou entre plantas de maior porte, mas nem todos os indivíduos em fase reprodutiva floresceram em anos subseqüentes. Os parâmetros altura total e número de folhas, altura total e comprimento do limbo foliar, assim como número de folhas e número de infrutescências se apresentaram positivamente correlacionados. A...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Butia capitata; Phenology; Reproduction; Sandy coastal vegetation.
Ano: 1998
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041998000300007

Synchrony is more than overlap: measuring phenological synchronization considering time length and intensity
Provedor de dados: 88
Autores: Freitas,Leandro; Bolmgren,Kjell.
The degree of flowering and fruiting synchronization is believed to have ecological and evolutionary relevance at several scales. Here we discuss some measures that have been used to estimate synchrony and propose an index that incorporates both the entire length of an individual phenophase and variation in the number of flowers or fruits over that time period. This new index describes more accurately the phenological synchrony among individuals and populations.
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Fitness; Phenology; Pollination; Population ecology; Seed dispersal.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000400017

Pollination biology in Jacaranda copaia (Aubl.) D. Don. (Bignoniaceae) at the "Floresta Nacional do Tapajós", Central Amazon, Brazil
Provedor de dados: 88
Autores: Maués,Márcia Motta; Oliveira,Paulo Eugênio A. M. de; Kanashiro,Milton.
Jacaranda copaia (Aubl.) D. Don is a pioneer tree widespread in the Brazilian Amazon, usually found colonizing forest gaps and altered areas, and the forest fragment edges. This study investigated aspects of the floral biology, breeding system and pollinators of J. copaia trees. Flowering lasts from August to November, during the low rainfall period extending up to four weeks per tree and 3-4 months for the population as a whole, characterizing a cornucopia flowering pattern. The fruit set ends in the beginning of the rainy season, with wind dispersed winged seeds. Fruit set from open pollination was 1.06% (n = 6,932). Hand pollination using self-pollen (n = 2,099) did not set fruits. Cross-pollination resulted in 6.54% fruit set (n = 2,524), representing...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bees; Floral biology; Late-acting self-incompatibility (LSI); Phenology; Pollinators.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042008000300015

Estudo comparativo da fenologia de nove espécies arbóreas em três tipos de floresta atlântica no sudeste do Brasil
Provedor de dados: 88
Autores: BENCKE,CINARA S.C.; MORELLATO,L. PATRÍCIA C.
Foi desenvolvido um estudo comparativo do comportamento fenológico de nove espécies arbóreas no Parque Estadual da Serra do Mar, Núcleo Picinguaba, Ubatuba, SP, em três formações florestais contíguas: floresta de restinga, floresta de planície e floresta de encosta. As observações foram realizadas de novembro/1994 a abril/1996. A intensidade dos eventos fenológicos foi estimada para cada indivíduo, utilizando uma escala de 0 a 4 com um intervalo de 25% entre cada classe. As espécies mantiveram os mesmos padrões fenológicos, independente da floresta, exceto duas delas (Guatteria australis St.Hill. e Didymopanax calvum Decne. &amp;amp; Planch.). A heterogeneidade dos padrões individuais, exibida por estas espécies, pode estar relacionada a diferenças...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic forest; Phenology; Flowering; Fruiting; Leafing.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002000200012

Plant species and habitat structure in a sand dune field in the brazilian Caatinga: a homogeneous habitat harbouring an endemic biota
Provedor de dados: 88
Autores: Rocha,Pedro Luís B. da; Queiroz,Luciano P. de; Pirani,José Rubens.
One dune habitat in the semi-arid Caatinga Biome, rich in endemisms, is described based on plant species composition, woody plant density, mean height and phenology and a multivariate analysis of the micro-habitats generated by variables associated to plants and topography. The local flora is composed mainly by typically sand-dweller species of Caatinga, suggesting the existence of a phytogeographic unity related to the sandy areas in the Caatinga biome, which seems to be corroborated by faunal distribution. Moreover, some species are probably endemic from the dunes, a pattern also found in vertebrates. The plant distribution is patchy, there is no conspicuous herbaceous layer and almost 50% of the ground represents exposed sand. Phenology is not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Density; Endemic species; Phenology; Phytogeography; Semiarid.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042004000400013

Fenologia de leguminosas arbóreas em uma área de cerrado marginal no nordeste do Maranhão
Provedor de dados: 88
Autores: BULHÃO,CLARISSA F.; FIGUEIREDO,PAULO S.
Os padrões fenológicos da vegetação arbórea do cerrado, savanas e demais formações florestais periodicamente secas ainda são pouco conhecidos, assim como são ainda obscuras as causas da periodicidade observada, ora atribuída a fatores abióticos, ora a fatores bióticos, ou a ambos, ou ainda determinada por restrição filogenética. Em uma área de cerrado marginal no extremo nordeste do Maranhão foram estudadas, durante vinte e dois meses, as dez espécies de leguminosas arbóreas mais freqüentes. As observações foram mensais em uma amostra de dez indivíduos por espécie. Nestas leguminosas, tanto o crescimento vegetativo quanto o reprodutivo são eventos periódicos e sazonais e, na maioria das espécies, a floração ocorre durante a estação seca sendo simultânea à...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phenology; Leguminous; Cerrado; Maranhão.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002000300012

Estudo fenológico de Stryphnodendron adstringens (Mart.) Coville no cerrado sensu stricto da Fazenda Água Limpa no Distrito Federal, Brasil
Provedor de dados: 88
Autores: FELFILI,JEANINE MARIA; SILVA JUNIOR,MANOEL CLAUDIO DA; DIAS,BENEDITO JOSÉ; REZENDE,ALBA VALÉRIA.
Stryphnodendron adstringens, conhecida como barbatimão, é uma espécie de distribuição geográfica ampla no bioma cerrado, ocorrendo desde o Pará, pelo planalto central, até Minas Gerais e São Paulo. Sua casca e frutos contêm tanino e apresentam propriedades medicinais. É uma espécie de baixa exigência nutricional e não acumuladora de alumínio. É hermafrodita e polinizada por pequenos insetos, especialmente abelhas. Está entre as principais espécies lenhosas encontradas na área de estudo. O objetivo deste estudo foi avaliar os eventos fenológicos desta espécie, numa área de cerrado sensu stricto na Fazenda Água Limpa (15°56'S e 47°46'W), durante cinco anos (1987-1991). Dez árvores foram selecionadas e observadas de 18/01/1987 até 07/11/1991 a intervalos...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phenology; Savanna; Cerrado; Fire; Stryphnodendron adstringens; Brazil.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84041999000100011

Reproductive phenology, pollination and seed dispersal syndromes on sandstone outcrop vegetation in the "Chapada Diamantina", northeastern Brazil: population and community analyses
Provedor de dados: 88
Autores: Conceição,Abel Augusto; Funch,Ligia Silveira; Pirani,José Rubens.
Vegetation on rock outcrops in the "Chapada Diamantina" (soil islands) is often aggregated and surrounded by nude rock surfaces, thus creating natural units with well defined limits. The flowering and fruiting cycles of plants on 58 soil islands at altitudes between 1,100 and 1,140 meters above sea leavel were analyzed at Mãe Inácia Peak (12°27' S and 41°28' W) in the "Chapada Diamantina", Bahia, Brazil. The presence/absence of flowering and fruiting species on each soil island, and their respective cover areas were analyzed at both the population and community levels, and the phenophases of flowering and fruiting were observed during 24 successive months. The analyses of pollination and seed dispersal syndromes indicated that animals are more important in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Flowering; Fruiting; Insular sandstone outcrop vegetation; Phenology; Syndromes.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042007000300012

Phenology, litterfall, growth, and root biomass in a tidal floodplain forest in the Amazon estuary
Provedor de dados: 88
Autores: Cattanio,José H.; Anderson,Anthony B.; Rombold,John S.; Nepstad,Daniel C.
The dynamics of forests subject to inundation appears to be strongly influenced by the frequency and intensity of natural disturbances such as flooding. In a late successional tidal floodplain forest near the Amazon port of Belém, Brazil, we tested this prediction by measuring seasonal patterns of phenology and litterfall in relation to two key variables: rainfall and tide levels. In addition, we estimated the root biomass and the annual growth of the forest community by measuring stem increments over time. Our results showed high correlations between phenological events (flowering and fruiting) and rainfall and tide levels, while correlations between litterfall and these variations were generally weaker. Contrary to our prediction, root biomass to 1 m...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Floodplain forest; Litterfall; Phenology; Productivity.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042004000400010

Comparação de dois métodos de avaliação da fenologia de plantas, sua interpretação e representação
Provedor de dados: 88
Autores: BENCKE,CINARA S.C.; MORELLATO,L. PATRÍCIA C.
Este trabalho compara dois métodos de avaliação fenológica e sua representação gráfica. O estudo foi desenvolvido no Núcleo Picinguaba, Ubatuba, Estado de São Paulo (23º22' S e 44º48' W), em três formações florestais: floresta de restinga, floresta de planície e floresta de encosta. A floração, frutificação, queda de folhas e brotamento foram estimados mensalmente para cada indivíduo arbóreo, durante 18 meses. Foram comparados: i) percentual de intensidade de Fournier ou índice de intensidade: escala intervalar de cinco categorias de 0 a 4, com intervalo de 25% entre classes; e ii) índice de atividade ou porcentagem de indivíduos. O índice de atividade e o percentual de intensidade de Fournier forneceram informações distintas e complementares, facilitando...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic forest; Phenology; Methods; Tropical forest; Synchrony.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042002000300003

Dispersal modes and fruiting periods in hyperseasonal and seasonal savannas, central Brazil
Provedor de dados: 88
Autores: Silva,Igor Aurélio; Cianciaruso,Marcus Vinicius; Batalha,Marco Antônio.
Seasonal savannas are characterized by an intense drought that influences their functioning. Hyperseasonal savannas experience additionally a waterlogging during the rainy season. In South America, the largest savanna environment is the Brazilian cerrado. To assess whether a particular dispersal mode or fruiting period is associated to the waterlogging, we examined dispersal and phenological groups in hyperseasonal and seasonal cerrado plant species. We compared the proportion of species and individuals in these groups with G-tests for independence in contingency tables. We did not find differences in the proportion of species; however, based on the proportion of individuals, the main dispersal strategy was anemochory in the hyperseasonal cerrado and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Dispersal modes; Guilds; Phenology; Waterlogging.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042009000100015

Patterns of litter production in a secondary alluvial Atlantic Rain Forest in southern Brazil
Provedor de dados: 88
Autores: Scheer,Maurício Bergamini; Gatti,Gustavo; Wisniewski,Celina; Mocochinski,Alan Yukio; Cavassani,André Targa; Lorenzetto,Alexandre; Putini,Francisco.
Above-ground litter production is one of the most accessible ways to estimate ecosystem productivity, nutrient fluxes and carbon transfers. Phenological patterns and climatic conditions are still not fully explained well for tropical and subtropical forests under less pronounced dry season and non-seasonal climates, as well as the interaction of these patterns with successional dynamics. Monthly litterfall was estimated for two years in a 9 to 10 year old secondary alluvial Atlantic Rain forest. Total litterfall was higher in the site with more developed vegetation (6.4 ± 1.2 ton ha-1 year-1; 95% confidence interval) as compared to the site with less developed vegetation (3.0 ± 1.0 ton ha-1 year-1). The monthly production of 11 litter fractions (eight...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Litterfall; Meteorological variables; Phenology; Primary productivity; Sucession.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042009000400018

Fenologia de espécies arbóreas em floresta de planície litorânea do sudeste do Brasil
Provedor de dados: 88
Autores: TALORA,DANIELA CUSTÓDIO; MORELLATO,PATRÍCIA C.
O presente estudo visou determinar os padrões fenológicos reprodutivos e vegetativos para espécies arbóreas da floresta superúmida de planície litorânea e relacionar os padrões observados com os fatores próximos (abióticos) e os evolutivos (bióticos). O estudo foi realizado no Parque Estadual da Serra do Mar, Núcleo Picinguaba, Ubatuba, SP (23°22'30"S; 44°46'-44°51'45"W). O clima da região é tropical chuvoso, com precipitação alta e bem distribuída ao longo do ano todo. Observações fenológicas foram realizadas mensalmente, de julho de 1993 a junho de 1994 em 290 indivíduos pertencentes a 46 espécies arbóreas. A fenofase queda de folhas não foi sazonal (teste Rayleigh não significativo), enquanto as demais fenofases foram pouco sazonais (teste Rayleigh...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phenology; Atlantic forest; Flowering; Fruiting.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042000000100002

Timing and Splitting of Nitrogen Side-Dress Fertilization of Early Corn Hybrids for High Grain Yield
Provedor de dados: 90
Autores: Panison,Fernando; Sangoi,Luís; Durli,Murilo Miguel; Leolato,Lucieli Santini; Coelho,Antonio Eduardo; Kuneski,Hugo Francois; Liz,Vander Oliveira de.
ABSTRACT Currently, most nitrogen fertilizer is side-dressed when corn is in the four (V4) to eight (V8) expanded leaf stage. However, recent studies have shown that modern hybrids take up high amounts of nitrogen during grain filling. This indicates that a late nitrogen fertilization, at the time of crop flowering, may be important to optimize corn agronomic performance. This study aimed to evaluate the effect of the timing and splitting of nitrogen side-dress application on the agronomic performance of early corn hybrids in order to achieve high grain yield. The experiment was set in Lages, Santa Catarina, in the South of Brazil, during the 2014/2015 and 2015/2016 growing seasons. A randomized block design arranged in split plots was used. Two hybrids...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays; Phenology; Cultivar; Productivity.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100509

Productive characteristics and water use efficiency in cotton plants under different irrigation strategies
Provedor de dados: 91
Autores: Silva,Vamberto G. de F.; Andrade,Albericio P. de; Fernandes,Pedro D.; Silva,Ivandro de F. da; Azevedo,Carlos A. V. de; Araújo,Jucilene S.
Studies have been carried out on efficient water use in irrigation. The present study evaluates the yield of cotton plants (Gossypium hirsutum L. r. latifolium Hutch), and the use of water for different irrigation strategies. The experiment was conducted under greenhouse conditions, and the cultivar used was CNPA-7H Precocious grown in plastic pots; each pot contained 20 kg of dry soil. The irrigation strategies were selected by taking into account the available water in the soil, the irrigation frequency and the irrigation suppression during flowering and boll development. Water consumption, boll weight, yield, harvest index and water use efficiency were evaluated and the results showed that water consumption resulting from the irrigation strategies used...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gossypium hirsutum; Phenology; Water availability; Water saving.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662010000500001

Impacts of climatic changes on the vegetative development of olive cultivars
Provedor de dados: 91
Autores: Florêncio,Gabriel W. L.; Martins,Fabrina B.; Ferreira,Mábele de C.; Pereira,Rodolfo A. de A.
ABSTRACT The aim of this study was to simulate the vegetative development of the olive cultivars Arbequina and MGS ASC315 cultivated in Maria da Fé, MG, Brazil (22° 18’ 29” S, 45° 22’ 31” W, 1.276 m of altitude). The development of these cultivars was simulated in nine transplanting dates, considering three distinct scenarios for three periods (2011-2040, 2041-2070 and 2071-2100). Climate changes influence the olive crop management. The increase in air temperature modifies the development rate and the duration of the seedling phase of the cultivars Arbequina and MGSASC315. In colder months, there is accelerated vegetative development and shorter seedling phase duration. Conversely, in warmer months, there is delayed development with longer seedling phase...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Olea europaea L.; Phenology; Air temperature.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000900641

Interseasonal variation of Chrysodeixis includens (Walker, [1858]) (Lepidoptera: Noctuidae) populations in the Brazilian Savanna
Provedor de dados: 92
Autores: Santos,Sabrina Raisa dos; Specht,Alexandre; Carneiro,Eduardo; Paula-Moraes,Silvana Vieira de; Casagrande,Mirna Martins.
Abstract Chrysodeixis includens (Walker, [1858]) is currently the main plusiine pest in the Americas, not only because of the damage caused to soybean, but also with several crop species in a broad geographical range. However, its population dynamics is still poorly understood, despite outbreak records that are common across different locations in the Americas. The current study aimed at identifying phenological patterns of C. includens emphasizing its differences among the three years of sampling effort in an intercropping area of the Brazilian Savanna. Thereafter, we tested whether the El Niño size effect, meteorological factors, or soybean, corn and wheat cycles, are better predictors of its monthly abundance. The insects were collected with a light...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Circular statistics; Phenology; Pest-species; Population outbreaks; Soybean phenology.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262017000400294

Diurnal flight periodicity of a Neotropical ant assemblage (Hymenoptera, Formicidae) in the Atlantic Forest
Provedor de dados: 92
Autores: Feitosa,Rodrigo M.; Silva,Rogério R. da; Aguiar,Alexandre P.
ABSTRACT In this study we document for the first time flight patterns along a 24 h time range for an ant assemblage in one of the most diverse ecosystems on Earth, the Brazilian Atlantic Forest. Malaise traps were used to analyze the diurnal nuptial flights of a Neotropical ant assemblage during five days. Traps captured 802 individuals, revealing a remarkably high diversity (42 ant species), with samples strongly male biased (1:22). Contrariwise to similar studies, we found only a small proportion of species engaged in nocturnal nuptial flights, with diurnal flights accounting for an impressive 95% of all ant flight activity recorded. For the 18 most common species, three ant groups could be identified regarding flight period: sunrise, sunset, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Malaise; Phenology; Reproduction; Summertime; Swarm.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262016000300241

The brown lacewings (Neuroptera, Hemerobiidae) of northwestern Turkey with new records, their spatio-temporal distribution and harbouring plants
Provedor de dados: 92
Autores: Kovanci,Orkun Baris; Canbulat,Savas; Kovanci,Bahattin.
The brown lacewings (Neuroptera, Hemerobiidae) of northwestern Turkey with new records, their spatio-temporal distribution and harbouring plants. The occurrence and spatio-temporal distribution of brown lacewing species (Neuroptera, Hemerobiidae) in Bursa province, northwestern Turkey, was investigated during 1999-2011. A total of 852 brown lacewing specimens of 20 species, including the genera of Hemerobius, Megalomus, Micromus, Sympherobius, and Wesmaelius were collected. Of these, 12 species were new records for northwestern Turkey while Sympherobius klapaleki is a new record for the Neuroptera fauna of Turkey. The most widespread species were Hemerobius handschini and Sympherobius pygmaeus with percent dominance values of 42.00 and 15.96%,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bursa; Host plants; Insecta; Phenology; Vertical distribution.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262014000200006

Colony cycle of the social wasp Mischocyttarus consimilis Zikán (Hymenoptera, Vespidae)
Provedor de dados: 92
Autores: Torres,Viviana O.; Montagna,Thiago S.; Fernandes,Wedson D.; Antonialli-Junior,William F.
Colony cycle of the social wasp Mischocyttarus consimilis Zikán (Hymenoptera, Vespidae). This study describes some aspects of the colony cycle of the Neotropical social wasp Mischocyttarus consimilis, from data obtained under field conditions. Our results showed that the colony cycle in M. consimilis is annual and asynchronous in relation to the months of the year. The colonies remained active for approximately eight months. Most of the abandonments were associated with natural causes, and were most frequent in the pre-emergence stage. The nests were constructed preferentially in man-made structures, especially in sites protected from direct sunlight and rain. Colony foundation was either by haplometrosis or pleometrosis, being the first form predominant.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Colony development; Natural history; Neotropical wasp; Phenology; Polistinae.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0085-56262011000200016

PERFORMANCE OF BLACKBERRY CULTIVARS IN CERRO AZUL - PR
Provedor de dados: 94
Autores: CROGE,CAMILA PEREIRA; CUQUEL,FRANCINE LORENA; BIASI,LUIZ ANTONIO; BONA,CLAUDINE MARIA DE.
ABSTRACT  Blackberry has the potential to be grown in subtropical climates, requiring phenological studies for the indication of cultivars adapted to this type of climate. Thus, the aim of this work was to evaluate the phenological behavior of four blackberry cultivars, as well as to determine the physical and chemical characteristics of fruits produced in mesothermal subtropical climate (Cfa), with more focus on the recommendation of cultivars adapted to this region. The largest production cycle and the best productions and yields were obtained for Guarani cultivar and larger fruits were presented by Tupy cultivar. The best relationship between titratable acidity and soluble solids was presented by Cherokee cultivar.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rubus; Phenology; Postharvest; Tupy; Guarani; Xavante and Cherokee.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452016000300704

Quince 'CPP': new dwarf rootstock for pear trees on organic and high density planting
Provedor de dados: 94
Autores: Botelho,Renato Vasconcelos; Schneider,Everton; Machado,Danielle; Piva,Rafael; Verlindo,Andricia.
In Brazil, pear production presents the same incipient situation over the last 15 years, due mostly to low production technology. In this context, this study aimed to evaluate the development, growth and production of the pear tree cultivars Cascatense, Tenra and Hosui grafted on 'CPP' quince rootstock, using 'FT' pear as interstem. This trial was carried out in Guarapuava, State of Paraná, Southern region of Brazil, by five productive cycles. The pear trees were planted in September of 2004, spaced at 1.0 x 4.0 m (2,500 trees ha-1), trained to the modified central leader, on a Four-wire trellis, with drip irrigation and cultivated under organic production system. The following variables were evaluated: sprouting, anthesis, yield, fruit weight, soluble...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Pyrus spp.; Cydonia oblonga; Agroecology; Phenology; Deciduous fruits.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000200034

VEGETATIVE STAGE OF STRAWBERRY DURATION DETERMINED BY THE CROP YEAR
Provedor de dados: 94
Autores: COSTA,ROSIANI CASTOLDI DA; CALVETE,EUNICE OLIVEIRA; CHIOMENTO,JOSÉ LUÍS TREVIZAN; TRENTIN,NICOLAS DOS SANTOS; NARDI,FABIOLA STOCKMANS DE.
ABSTRACT  Over the years, strawberry growth has shown alterations in its phenology, involving mainly the beginning of flowering and fruiting. The aim of this study was to verify whether the growth years influence the duration of strawberry vegetative and reproductive stages in protected environment. The development of the Camarosa strawberry cultivar was observed between 2007 and 2014. The crops were settled in a greenhouse in the Horticulture Sector at the University of Passo Fundo, RS. Data like transplant date, in the beginning and end of the fruits harvest; temperature data (maximum, average and minimum) were recorded in the growth environment. These data were used for the thermal sum calculation (daily, accumulated). The data analyses were carried out...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragaria x ananassa Duch; Phenology; Accumulated thermal.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000500703

Accumulation and exportation of nutrients by yellow Passion fruit cv. IAC 275
Provedor de dados: 94
Autores: Mattar,Gabriel Stefanini; Moraes,Carolina Cinto de; Meletti,Laura Maria Molina; Purquerio,Luis Felipe Villani.
Abstract  The mineral nutrition is essential to increase yield and fruit quality of passion fruit. There is no information of nutrient accumulation throughout the production cycle. Thus, in order to assist in the correct nutrients supply and update the recommendations, studies involving cultivars and cultivation techniques are necessary. The aim of this study was to evaluate the plant growth, the nutrient accumulation and the exportation in plants of yellow passion fruit cv. IAC 275. The experimental design was a randomized block, with three replications, where the treatments were evaluation times. Stem length, dry mass matter and nutrient accumulation in aerial part (leaves and stems), fruits and roots were evaluated. The maximum daily accumulation rate...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Passiflora edulis; Advanced seedling; Annual cultivation; Mineral nutrition; Phenology; Sustainability.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000300701

Root distribution according to phenology in plantain cultivars (Musa AAB), Ecuador
Provedor de dados: 94
Autores: Avellán-Vásquez,Leonardo Enrique; Estévez-Chica,Sandra Tatiana; Vaca-Sotelo,Diego Alfonso; Zambrano-Mendoza,Myriam Elizabeth; Cedeño-Loor,Tito Alexander; Sánchez-Urdaneta,Adriana Beatriz.
Abstract  Plantain is the fourth most important crop in the world, considered as a basic and export product in Ecuador. The root distribution of three plantain cultivars (Musa AAB) grown in Ecuador was evaluated at the “Río Suma” Experimental Farm, “Laica Eloy Alfaro de Manabí” University, 0º15’ S, 79º26’ W. Plantain cultivars were ‘Barraganete’, ‘Curare Enano’ and ‘Dominico Hartón’, and root distribution was determined according to the phenology of plants (10, 20, 30, 40 leaves (inflorescence) and harvest), seeded at 2.5 m x 1.8 m. In a completely randomized block design with five replicates, five plants·cultivar-1 were selected for each evaluation. Root distribution was carried out in soil profiles between rows. The greatest root distribution occurred 20...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Musa sp.; Root development; Phenology; Depth; Number of roots.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452021000200203

Leaf nutritional levels in peach and nectarine grown in subtropical climate
Provedor de dados: 94
Autores: Leonel,Sarita; Souza,Manoel Euzébio De; Tecchio,Marco Antonio; Segantini,Daniela Mota.
The study evaluated the leaf nutritional levels of peach and nectarine trees under subtropical climate in order to improve the fertilization practices. The experiment was carried out in São Paulo state University, Botucatu, São Paulo State, Brazil. The experimental design consisted of subdivided plots, in which plots corresponded to cultivars and subplots to the leaf sample periods. The evaluated peach cultivars were: Marli, Turmalina, Precocinho, Jubileu, Cascata 968, Cascata 848, CP 951C, CP 9553CYN, and Tropic Beauty, and that of nectarine was 'Sun Blaze'. The sample periods were: after harvest, plants in vegetative period; dormancy; beginning of flowering and fruiting (standard sample). Results indicated significant variations in the levels of N, P, K,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prunus persica var. vulgaris; Prunus persica var. nucipersica; Mineral nutrition; Phenology.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452011000500105

Floral and reproductive biology of Matisia cordata (fam: malvaceae)
Provedor de dados: 94
Autores: Castro,Mariluz Aguilar; Ramírez,Daily Gómez; Osorio,Verónica Álvarez; Ruiz,Sandra Muriel.
Abstract  In Colombia there is a large diversity of promising fruit trees, one of them is Matisia cordata. Sapoti species is appreciated by the consumers, although it is produced in small volumes by traditional productors. The objective of this research is to describe the floral and reproductive biology of sapoti, including floral visitors that act as biotic pollination agents. The study was conducted in two farms, between February/2016 and July/2017. In the first farm, floral buds were marked to follow the stages until fruit formation, pollination mechanism was studied, and floral visitors were collected for identification. In the second farm, flowers were marked to measure the floral nectar production. The duration from floral bud to ripe fruit was 269...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nectar; Pollination; Phenology; Promissory fruit; Sapoti.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452021000200201

Agronomic performance of Blackberry cultivars in Lapa-PR
Provedor de dados: 94
Autores: Croge,Camila Pereira; Cuquel,Francine Lorena; Biasi,Luis Antonio; Bona,Claudine de; Pintro,Paula Toshimi Matumoto.
Abstract  Phenological studies with blackberry cultivars and the physical, chemical and sensory characterization of fruits are necessary to select the best cultivar adapted to local conditions and for the correct destination of fruits. The objective of this work was to evaluate the phenological stages of different blackberry cultivars, as well as to determine the quality of fruits, focusing on the recommendation of cultivars that are more adapted to local climate conditions. Moreover, the aim was to indicate the best destination of fruits produced, for either fresh consumption or as raw material for processing. The results indicated that the cultivars studied have adequate conditions for the expression of their productive potential, being Tupy cultivar the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Rubus; Small fruits; Phenology; Sensory analysis.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000200301

PHENOLOGICAL CHARACTERIZATION OF PEAR TREES (Pyrus communis L.) ‘PRINCESINHA’ UNDER SEMIARID CONDITIONS IN THE NORTHEASTERN BRAZIL
Provedor de dados: 94
Autores: OLIVEIRA,INEZ VILAR DE MORAIS; LOPES,PAULO ROBERTO COELHO; SILVA-MATOS,RAISSA RACHEL SALUSTRIANO DA.
ABSTRACT  The study of phenology is fundamental in introducing cultivars into new regions, mainly in different conditions from those in which they are adapted. The study was conducted in order to characterize the phenological phases of pear (Pyrus communis L.) cultivar ‘Princesinha’, determine the fixation of fruit rate and quantify the production, as well as to determine the interference of climatic factors on the duration the budding cycle, in the region of São Francisco Valley, Petrolina, PE. To perform the phenological reviews four branches were marked in five plants and the data were expressed as percentage; the variables related to productivity were recorded in all orchard plants, data were submitted to descriptive analysis; climate data and...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Chilling requirement growing season; Phenology; Semiarid.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000300705

PERFORMANCE PRODUCTION OF STRAWBERRY IN ENVIRONMENT CULTIVATED WITH FIG TREE
Provedor de dados: 94
Autores: MENDONÇA,HELOISA FERRO CONSTÂNCIO; CALVETE,EUNICE OLIVEIRA; COSTA,ROSIANI CASTOLDI DA; NIENOW,ALEXANDRE AUGUSTO.
ABSTRACT  The use of protected environment in horticulture has been increasingly used as it provides increased precocity and productivity, in addition to produce outside the normal growing season. Both woody species such as herbs are possible to cultivate in this environment. However fruit plants occupy large spaces with a short production period. The study aimed to test whether strawberry genotypes present different production peaks in cultivated environment with fig trees. The treatments consisted of strawberry cultivars Aromas, Albion, Camino Real, Camarosa and Ventana distributed in delineation of randomized blocks with four replications and with a population of 10 plants m-2. It was recorded precocity in cultivars Albion, Camarosa and Ventana, because...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fragaria x ananassa Duch.; Phenology; Fruit production; Crop integration.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452017000400702

Alkaloids and acetogenins in Annonaceae development: biological considerations
Provedor de dados: 94
Autores: González-Esquinca,Alma Rosa; De-La-Cruz-Chacón,Iván; Castro-Moreno,Marisol; Orozco-Castillo,José Agustín; Riley- Saldaña,Christian Anabi.
Chemical studies of the plant family Annonaceae have intensified in the last several decades due to the discovery of annonaceous molecules with medicinal potential (e.g., benzylisoquinoline alkaloids and acetogenins). Approximately 500 alkaloids have been identified in 138 Annonaceae species in 43 genera. In addition, until 2004, 593 annonaceous acetogenins (ACGs) had been identified, from 51 species in 13 genera.This suggests that plants from this family allocate important resources to the biosynthesis of these compounds. Despite the diversity of these molecules, their biological roles, including their physiological and/or ecological functions, are not well understood. In this study, it was provided new data describing the variety and distribution of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Early development; Secondary metabolism; Ecological functions; Phenology.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452014000500001

Annual and daily patterns of calling activity in male Scinax fuscomarginatus (Anura: Hylidae) from Central Brazil
Provedor de dados: 103
Autores: Souza,Antonio Olímpio de; Oliveira,Seixas Rezende; Dias,Gardênia Proto; Bastos,Rogério Pereira; Morais,Alessandro Ribeiro de.
ABSTRACT Bioacoustics is an effective way of recording detailed data during population surveys and monitoring. In the present study, we used an automated digital recorder (ADR) to describe the temporal variation in the calling activity of Scinax fuscomarginatus (Lutz, 1925) in central Brazil. We also evaluated the role of climatic variables (air temperature and precipitation) on calling activity by using a Generalized Additive Model (GAM). We conducted the recordings at five ponds in the Cerrado savanna of Rio Verde Municipality, in Goiás state between November 2013 and October 2014. The analysis of the 43.2 hours of acoustic recording showed that S. fuscomarginatus has a prolonged breeding pattern. The ADR provides a fine-scale description of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acoustic survey; Anurans; Automated recording; Breeding period; Phenology; Seasonal variability; Vocalization behavior.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702020000100328

Two new tiny Nemesiidae species from Reserva Biológica do Tinguá, Rio de Janeiro, Brazil (Araneae: Mygalomorphae)
Provedor de dados: 103
Autores: Indicatti,Rafael P.; Folly-Ramos,Elaine; Vargas,André B.; Lucas,Sylvia M.; Brescovit,Antonio D.
Two new Nemesiidae species from Reserva Biológica do Tinguá, Rio de Janeiro, Brazil are described. Acanthogonatus minimussp. nov. differs from the remaining species of the genus by the male palpal bulb, which has very long and twisted embolus, ca. 2/3 the length of the palpal tibia, long and twisted spermathecae, anterior eye row recurved and fovea T-shaped. Chaco tinguasp. nov. differs from the remaining species of the genus by the retrolateral megaspine on tibia I, palpal embolus tip hook-shaped, inferior tarsal claw on all legs, absence of pubescence on the carapace and legs. Both species were collected with Winkler extractors in leaf litter. They are the smallest specimens in their respective genera and also among the world Nemesiidae described to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Anaminae; Diplothelopsinae; Mata Atlântica; Phenology; Spider.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000200123

Morphophysiological characterization of giant missionary grass accessions
Provedor de dados: 96
Autores: Lajús,Cristiano Reschke; Scheffer-Basso,Simone Meredith; Miranda,Mario; Denardin,Rosiane Berenice Nicoloso; Valls,José Francisco Montenegro.
In this study, the phenotypic diversity of five accessions of giant missionary grass (Axonopus jesuiticus × A. scoparius) was evaluated by using morphophysiological traits. Accessions V 14337, V 14403, V 14404, V 14405 and V 14406 are hybrids derived from spontaneous crossing that occurred in Vale do Itajaí, Santa Catarina, Brazil. Plants were cultivated in greenhouse and evaluated at 60, 90, 120, 150, 180, 210 and 240 days of growth. Variation was observed for dry matter production, phenology and morphological traits, showing the possibility of selection. Flowering started at 210 days of growth and only in accessions V 14337 and V 14404. The Mahalanobis distance among accessions ranged from 35.64 (V 14403 and V 14405) to 183.38 (V 14337 and V 14405), and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: A. catharinensis; Dry matter production; Growth analysis; Phenology.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011001100004

Phenological synchrony between the austral thrush Turdus falcklandii (Passeriformes: Turdidae) and its food resources within forests and prairies in southern Chile
Provedor de dados: 97
Autores: Orellana,José I; Smith-Ramírez,Cecilia; Rau,Jaime R; Sade,Soraya; Gantz,Alberto; Valdivia,Carlos E.
BACKGROUND: Frugivorous birds are phenologically linked to the fruits that they eat. When there is less fruit in seasonal environments, frugivorous birds complement their diet by eating invertebrates. The depth of the phenological link between frugivorous birds and their dietary resources has not been studied until now. The objective was to determine the possible phenological synchrony between the Austral thrush (Turdus falcklandii) and its dietary resource, fruits and annelids, found in the fragmented forests in the South of Chile. RESULTS: The numbers of thrushes, annelids, and fruits in fragments of native forest and anthropogenic grassland in Chile's Lake District were estimated annually. Spatial variation (i.e., forest and grassland) and seasonal...
Tipo: Journal article
Palavras-chave: Annelids; Fleshy fruit; Phenology; Seasonality; Turdus.
Ano: 2014
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2014000100010

Clonal evaluation and recurrent flowering of ornamental pineapple hybrid for use as miniature potted plant
Provedor de dados: 124
Autores: Silva,Bruna de Fátima Batista da; Souza,Everton Hilo de; Dias,Lucas Ezequiel da Costa; Silva,Ronilze Leite da; Souza,Fernanda Vidigal Duarte.
ABSTRACT The objective of this study was to evaluate the cloning and recurrent flowering of the miniature pineapple hybrid ORN-MUT based on quantitative and qualitative morphological descriptors for possible use as a potted plant. Besides its reduced size, the ORN-MUT hybrid is notable for its pink fruit, absence of thorns and recurrent flowering at the crown, formed after the plant's complete cycle (562 days). The hybrid was assessed in the experimental field of the Embrapa Cassava and Fruits research unit in two flowering stages (first flowering and recurrent flowering) and was characterized by quantitative and qualitative morphological descriptors. A joint analysis of the data (multivariate analysis) was performed to verify the distinguishability and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ananas comosus (L.) Merrill; Morphological characterization; Phenology; Floriculture.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000400625

Physiological quality of sesame seeds produced from plants subjected to water stress
Provedor de dados: 124
Autores: Silva,Ronimeire Torres da; Oliveira,Alexandre Bosco de; Lopes,Maria de Fátima de Queiroz; Guimarães,Marcelo de Almeida; Dutra,Alek Sandro.
ABSTRACT Germination and seed vigor may be influenced by several factors, such as water stress during production, which affect crops differently according to the phenological stage of the plant. The aim of this study therefore was to evaluate the physiological quality of sesame seeds from plants subjected to water stress at different phenological stages. To this end, sesame plants were subjected to water stress at the following stages: I - germination to the start of vegetative growth (T1); II - vegetative growth to flowering (T2); III - flowering to pod formation (T3); IV - fruit maturation (T4); also for stress at all stages (T5) and full irrigation (T6). By weighing and daily irrigation of the containers, levels were kept at 50% of pot capacity (CV) for...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Sesamum indicum L; Water deficit; Phenology; Germination; Gas exchange.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902016000400643

Influence of photoperiod and air temperature on the growth, flowering and maturation of soybean (Glycine max (L.) Merrill)
Provedor de dados: 63
Autores: Câmara,G.M.S.; Sediyama,T.; Dourado-Neto,D.; Bernardes,M.S.
With the purpose to evaluate the effect of short (12 hours) and long (13 and 14 hours) photoperiods and air temperature regimes (winter and summer growing seasons) on soybean behaviour, greenhouse experiments were installed at the Federal University of Viçosa, Brasil, from June 1984 to December 1985. In each experiment, under a completely randomized design with 12 treatments (soybean cultivars) and eight replicates: duration of vegetative period from emergency to stage R1 or flowering (DVP, in days); plant height (PH, m); number of nodes per plant at stage R1 (NNP); and duration of soybean cycle from emergency to stage R7 or physiological maturity point (DC, days), were evaluated. The results permit to conclude that: the vegetative period from emergency to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phenology; Plant height; Photoperiodism.
Ano: 1997
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90161997000300017

Seasonal dynamics of vegetation indices as a criterion for grouping grassland typologies
Provedor de dados: 63
Autores: Moreira,Andreise; Bremm,Carolina; Fontana,Denise Cybis; Kuplich,Tatiana Mora.
ABSTRACT: This study aimed to characterize the average seasonal pattern of the vegetation in southern grassland in Brazil, and the variability found in the time series of vegetation indices. It also sought to identify similarities in the seasonal pattern of different grassland typologies. Moderate Resolution Imaging Spectroradiometer (MODIS), Normalized Difference Vegetation Index (NDVI) and Enhanced Vegetation Index (EVI) images from Feb to Dec, 2000 to 2014 were analyzed for ten regions. The grassland typologies studied showed EVI and NDVI profiles consistent with the seasonal dynamics of grassland vegetation under the influence of a subtropical climate, with highest values in the indices during the warm seasons of the year (spring and summer) and lowest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: MODIS; EVI; NDVI; Phenology; Grassland vegetation.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019000100024

The role of petals in development of grey mould in strawberries
Provedor de dados: 102
Autores: Boff,Pedro; Kraker,Joop de; Gerlagh,Mathijs; Köhl,Jürgen.
Studies were conducted in annual crops of strawberry (Fragaria x ananassa) (cv. Elsanta to assess the relative importance of petals as an inoculum source of grey mould, caused by Botrytis cinerea and to identify during which period of flower and fruit development the presence of petals has a significant effect on development of grey mould on fruits. In 1998, the incidence of B. cinerea on flower parts was assessed, and the symptoms of grey mould on fruits were characterised with regards to their starting point. The incidence of B. cinerea on petals was 65-85% of those flowers that harboured B. cinerea. The starting point of symptoms was located underneath the sepals in 65-85% of fruits with grey mould, and petals were present at this site in about 50% of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Strawberries; Botrytis cinerea; Flower; Epidemiology; Inoculum source; Phenology.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582003000100011

Insetos capturados com armadilha Malaise na Ilha do Mel, Baía de Paranaguá, Paraná, Brasil: II. Tabanidae (Diptera)
Provedor de dados: 104
Autores: Dutra,Renato R. C.; Marinoni,Renato C.
Two Malaise traps (TOWNES' 1972 model) were installed on an island (lhe "Ilha do Mel") in lhe Bay of Paranaguá, from September, 1988 to August. 1989. at two sites denominated "Fortaleza" and "Praia Grande", for colleetion of insects. At "Fortaleza". 1,715 individuais of Tabanidae were captured, representing 3.20% of all Diptera captured in this site, while at "Praia Grande" 1,420 individuais of the same family were captured, representing 5,06% of ali Diptera captured there. In "Fortaleza", Tabanidae is represented for 10 species, while in "Praia Grande" it is represented for nine species. Dichelacera alcicomis (Wiedemann. 1828) was the most abundant species at two sites, representing 87,52% and 66,69 % of all Tabanidae captured at "Fortaleza" and "Praia...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tahanidae; Phenology; Paraná.
Ano: 1994
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751994000200007

Visitantes florais de Lagerstroemia speciosa Pers: (Lythraceae)
Provedor de dados: 104
Autores: Vitali-Veiga,Maria de Jesus; Dutra,João Cloves Stanzani; Machado,Vera Lígia Letízio.
Studies were carried out with Lagerstroemia speciosa Pers. on floral reproductive systems, diversity and constancy of visiting insects at different hours of day, the behaviour of these insects at the flowers and the influence of these environmental factors in relation to their visits. The fenology, anthesis and others particularity of this vegetal species was studied. A great diversity of insects was verified visiting the flowers with the predominance of bees. The most frequent and constant species encountered were: Nannotrigona testaceicornis (Lepeletier, 1836) (40,2%), Tetragonisca angustula (Latreille, 1811) (16,9%), Apis mellifera Linnaeus, 1758 (11,8%), Plebeia droryana (Friese, 1900) (9,1 %) e Exomalopsis fulvofasciata (Smith, 1879) (8,5%). The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bee; Flower visitors; Phenology; Pollination; Lagerstroemia speciosa.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751999000200006

Dinâmica populacional de quatro espécies de Dysdercus (Hemiptera, Pyrrhocoridae) e a fenologia das plantas hospedeiras
Provedor de dados: 104
Autores: Almeida,J. R. de; Xerez,R. de; Caldas,A.
The food cycle and geographical variation of Dysdercus diet were studied as strategy elements of trophic resources exploitation. The species used were D. fulvoniger, D. maurus, D. mendesi and D. ruficollis. A random sampling method was adopted at two regular sampling areas (Vassouras and Itaguaí, Rio de Janeiro, Brazil). The places sampled only once were selected based on the potential migration of Dydercus. Various transects were determined, with 99 places; these transects involved six morpho-climatic-phytogeographical domains: Atlantic Tropical, Cerrado, Caatinga, Amazonic Equatorial, Pantanal and "Planalto das Araucárias". The food cycle of Dysdercus at Vassouras is based on the exploitation of reproductive structures (flowerand fruit) of some...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemiptera; Pyrrhocoridae; Dysdercus; Populational dynamic; Phenology; Host plants.
Ano: 1993
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751993000200002

Litter dwelling mygalomorph spiders (Araneae: Microstigmatidae, Nemesiidae) from Araucaria forests in southern Brazil, with the description of five new species
Provedor de dados: 104
Autores: Indicatti,Rafael P.; Lucas,Sylvia M.; Ott,Ricardo; Brescovit,Antonio D.
Six mygalomorph spiders species belonging to two families, were collected in the Centro de Pesquisa e Conservação da Natureza Pró-Mata, São Francisco de Paula, state of Rio Grande do Sul, Brazil. Five of those species, five are new. Microstigmatidae: Xenonemesia araucaria sp. nov., males differ from those of X. platensis Goloboff, 1988 and X. otti Indicatti, Lucas &amp;amp; Brescovit, 2007 by the curved and very long embolus in the male palp. Females differ from the remaining species of the genus in the seminal receptacle very long and sinuous or twisted. Nemesiidae: Acanthogonatus ericae sp. nov. - males resemble those of A. tacuariensis (Pérez-Miles &amp;amp; Capocasale, 1982) and A. quilocura Goloboff, 1995 by the serrated, curved and long embolus but...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Acanthogonatus; Mygalomorphae; Phenology; Stenoterommata; Xenonemesia.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752008000300021

Nidificação e forrageamento de Centris (Ptilotopus) scopipes Friese (Hymenoptera, Apidae)
Provedor de dados: 104
Autores: Gaglianone,Maria Cristina.
Centris (Ptilotopus) are large bees and important pollinators in the Neotropical region. Its biology and behavior is still poorly known and only a few observations have been published. In this paper, observations on the biology of C. (Ptilotopus) scopipes Friese, 1899, a species that occurs in the "cerrados" of Brazil, are presented. The study was conducted in the Estação Ecológica de Jataí, in Luiz Antônio, São Paulo, during the active period of the adults (November through April). Females collected pollen from flowers of Solanaceae and Caesalpiniaceae, by vibration, and floral oils from Malpighiaceae belonging to the genera Byrsonima, Banisteriopsis, Stigmaphyllon and Peixotoa. Floral resources are carried in the hind leg scopae to the nests, which are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Centridini; Cerrado; Floral resources; Malpighiaceae; Nests; Phenology; Termites.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500008

Mangrove vegetation in Amazonia: a review of studies from the coast of Pará and Maranhão States, north Brazil
Provedor de dados: 36
Autores: Menezes,Moirah Paula Machado de; Berger,Uta; Mehlig,Ulf.
The present study is a compilation of the literature about vegetation of mangrove forest of the north coast of Brazil. It synthesizes the knowledge about this important ecosystem and lists the currently available literature. The study focuses on the coast of Pará and Maranhão states, which are covered by a continuous belt of mangroves. The mangrove flora comprises six mangrove tree species and several associated species. Mangrove tree height and stem diameter vary as a function of abiotic local stand parameters. Seasonal variation in rainfall and salinity affect the species' phenology and litter fall. Local population use products derived from mangrove plants for different purposes (e.g. fuel; medicinal; rural construction). The increase in the coastal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazonian mangroves; Phenology; Litter fall; Herbivory; Anthropic impacts.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672008000300004

Niche differentiation mechanisms among canopy frugivores and zoochoric trees in the northeastern extreme of the Amazon
Provedor de dados: 36
Autores: TODESCHINI,Felipe; TOLEDO,José Julio de; ROSALINO,Luis Miguel; HILÁRIO,Renato Richard.
ABSTRACT Frugivores and zoocoric trees represent an important proportion of tropical rainforest biodiversity. As niche differences favor species coexistence, we aimed to evaluate morphological and temporal niche segregation mechanisms among zoochoric trees and canopy frugivores in a tropical rainforest in the northeastern extreme of the Brazilian Amazon. We tested the effects of fruit morphology, tree size, frugivore body size and time of day on fruit consumption. We recorded the frugivore species that fed on 72 trees (44 species, 22 genera) and whether these frugivores swallowed the seeds. We monitored trees only once from 07:00 to 17:00 h between January and September 2017. We observed fruit consumption in 20 of the 72 trees. Seventy-three frugivore...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amapá National Forest; Frugivory; Phenology; Seed dispersal; Tropical rainforest.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000300263

The influence of El Niño and edge effects on the reproductive phenology and floral visitors of Eschweilera tetrapetala Mori (Lecythidaceae), an endemic species of the Atlantic Forest of northeastern Brazil
Provedor de dados: 39
Autores: Menezes,Isiara Silva; Couto-Santos,Ana Paula Lima do; Funch,Ligia Silveira.
ABSTRACT We compared the reproductive phenology and floral visitors of Eschweilera tetrapetala growing along the edge and in the interior of a submontane forest in the Chapada Diamantina mountains, Bahia State, Brazil. We sought to determine if there were inter-annual differences in intensity and seasonality associated with environmental conditions, and if there were differences in floral visitors between the two environmental contexts. Phenological observations were performed for three years, and included the occurrence of an El Niño event. We applied circular statistics to detect seasonal trends, performed cross correlations between phenophases and climate, Kruskal-Wallis and Wilcoxon signed-rank tests for inter-annual variation, and the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: El Niño; Eschweilera tetrapetala; Floral visitors; Linear edge effects; Phenology; Precipitation; Seasonality.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000100001

Phenological synchrony and seasonality of understory Rubiaceae in the Atlantic Forest, Bahia, Brazil
Provedor de dados: 39
Autores: Liuth,Heitor Scarpati; Talora,Daniela Custódio; Amorim,André Márcio.
In tropical forests with low seasonality, climatic variables generally exert a weak influence on the phenology of species. The seasonality of phenophases in closely related taxa can be controlled by phylogenetic constraints in such environments. In this study, our aim was to describe the phenology of Rubiaceae in the understory of the Atlantic Forest in the southern part of Bahia, Brazil, as well as to evaluate the seasonality and phenological synchrony of this family. For two years, we observed 90 individuals belonging to 13 species, in an area of 0.2 ha. Leaf flushing and leaf fall did not demonstrate any seasonality, were continuous for most species and correlated with few of the climatic variables. Flowering was seasonal and correlated positively with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leaf flushing; Phenology; Flowering; Fruiting; Psychotria.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000100019

Xylem growth rings and leaf phenological patterns in tree species of a subtropical seasonal forest
Provedor de dados: 39
Autores: Bauer,Danielle; Schmitt,Jairo L.; Oliveira,Juliano M.
ABSTRACT Growth rings have been reported for several tropical species under seasonal precipitation regimes and have often been related to leaf phenology. We investigated growth ring distinctiveness, wood markers, and leaf shedding and flushing patterns of 16 tree species from a subtropical seasonal deciduous forest under abundant and well-distributed rainfall regime in southern Brazil. Distinct growth rings were found in 13 species, 10 of which presented clear anatomical boundaries. Seven species were deciduous, five semideciduous and four perennial. Leaf shedding peaked during winter and spring months for the deciduous species, while it peaked during spring and summer months for the perennial and semideciduous species. Leaf flushing peaked in spring and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dendrochronology; Phenology; Seasonal deciduous forest; Subtropical forest; Tree rings; Wood anatomy.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062020000400680

Temporal variation of Nitella furcata subsp. mucronata var. mucronata f. oligospira (Charophyceae) in the Ninféias pond, São Paulo State, southeast Brazil
Provedor de dados: 39
Autores: Bueno,Norma Catarina; Bicudo,Carlos Eduardo de Mattos.
Temporal and spatial variation of Nitella furcata (Roxburgh ex Bruzelius) C. Agardh emend. R.D. Wood subsp. mucronata (A. Braun) R.D. Wood var. mucronata f. oligospira (A. Braun) R.D. Wood were studied at the Ninféias pond (23°38'18.9"S, 46°37'16.3"W), a tropical, shallow, mesotrophic reservoir located in the Parque Estadual das Fontes do Ipiranga Biological Reserve, Municipality of São Paulo, southeast Brazil. Water samples were collected monthly from October/1996 to October/1997 for turbidity, electric conductivity, pH, alkalinity, dissolved oxygen, nutrients, biomass, and algal phenology analysis. Spatial distribution pattern of algal biomass showed that all four sampling stations were similar among themselves during the whole study period. Regarding...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Charophyceae; Biomass; Phenology; Aquatic macrophyte; Nitella.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062006000100001

Fructan dynamics in the underground organs of Chresta exsucca (Asteraceae), a dry season flowering species
Provedor de dados: 39
Autores: Santos,Camila Silva dos; Abraão,Cinara Ferreira; Moraes,Moemy Gomes de.
ABSTRACT Climatic seasonality has an influence on the phenology of native Cerrado plants. Herbs and subshrubs tend to flower in the rainy season, although some species of these habits flower in the dry season. Reserve carbohydrates, stored in the underground organs, are used to support phases of high energy-demand, but also may protect plants from damage during periods of environmental limitation. In this study we evaluated variation in fructan levels in the underground organs of field-grown plants of Chresta exsucca among different phenological phases. Chresta exsucca flowers in the dry season and possesses a diffuse underground system, which stores inulin-type fructans. Resprouting was continual during the sampling period. Oligosaccharide content was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Drought; Inulin; Non-structural carbohydrate; Phenology.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062018000100070

Tannins in Baccharis dracunculifolia (Asteraceae): effects of seasonality, water availability and plant sex
Provedor de dados: 39
Autores: Espírito-Santo,Mário M; Fernandes,G. Wilson; Allain,Luciana R; Reis,Ticiana R. F.
Several ecological, genetic, and environmental factors are known to influence tannin concentration in plant tissues. In this study, the effects of seasonality, water availability, and sex of the plant on tannin concentration in the dioecious shrub Baccharis dracunculifolia were assessed. The effects of water availability on plant shoot growth and its relationship to tannin concentration were also experimentally evaluated. Tannins occurred in B. dracunculifolia from November to May, peaking during the summer (December to March). However, no relationship between tannin concentration, rainfall and temperature was found. No difference in tannin concentration and shoot growth was found between plants in the irrigated and control treatments, this suggesting that...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Tannins; Baccharis dracunculifolia; Irrigation; Gender; Phenology.
Ano: 1999
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33061999000200006

Phenological relationships between two insect galls and their host plants: Aspidosperma australe and A. spruceanum (Apocynaceae)
Provedor de dados: 39
Autores: Campos,Priscila Tolentino; Costa,Maria Cecília Dias; Isaias,Rosy Mary dos Santos; Moreira,Ana Sílvia Franco Pinheiro; Oliveira,Denis Coelho de; Lemos-Filho,José Pires de.
Although gall diversity in the Neotropical region is immense, comparative studies on the phenology of host plants and their galls are scarce. Gall systems generally require high levels of phenological synchrony between the associated organisms. The relationships between the phenology of two leaf galls induced by an unidentified Cecidomyiidae in Aspidosperma spruceanum Benth. ex Müell. Arg. and by Pseudophacopteron sp. in A. australe Müell. Arg. were investigated. The investigation was performed on ten individuals per species in 15-day intervals taking into consideration the percentage of galled leaves. In a one-year study, three distinct phenophases for the leaf galls and four phenophases for host plants were observed. The maximum percentage of leaf galls...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Gall abundance; Plant interaction; Phenology; Synchronism.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062010000300016

Post-fire flowering and fruiting in Vellozia sincorana, a caulescent rosette plant endemic to Northeast Brazil
Provedor de dados: 39
Autores: Conceição,Abel Augusto; Orr,Barron J.
Vellozia sincorana L.B. Sm. &amp;amp; Ayensu, an endemic of campos rupestres, is an endangered species collected by local people to start cooking fires due to the flammability of its resinous stems. A massive flowering of V. sincorana following a wildfire in October 1999 raised some questions: Does fire affect flowering and fruiting of V. sincorana? Is the height of individuals correlated with flowering and fruit production? A wildfire event on 8 November 2008 provided an opportunity to explore these questions. Two populations of V. sincorana in two campos rupestres sites (12º31'S - 41º29'W; 12º36'S - 41º28'W) on ridgetops in the Chapada Diamantina National Park (Brazil) were monitored, one burned in the November 2008 fire and the other unburned since the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Chapada Diamantina; Phenology; Rupestrian fields; Useful plant; Velloziaceae.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062012000100011

Phenology of the multi-use tree species Carapa guianensis in a floodplain forest of the Amazon Estuary
Provedor de dados: 39
Autores: Dantas,Adelson R.; Lira-Guedes,Ana C.; Mustin,Karen; Aparício,Wegliane C. S.; Guedes,Marcelino C.
ABSTRACT Carapa guianensis is a multi-use tree species that is used for the production of timber and non-timber forest products (NTFPs) that are used and sold by rural Amazonian populations. Here we aimed to evaluate the phenophases of C. guianensis in várzea forest and relate them to climatic seasonality. Phenophases of flowering (flower buds and open flowers), fruiting (unripe and ripe fruits), and leaf flush and leaf fall were recorded for 30 individual trees during a 25 month period. Relationships between rainfall and the proportion of trees in each phenophase were tested using Generalised Linear Models with quasi-binomial errors. Flowering was found to peak in the driest months of the year (September to December), while fruiting peaked during the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon; Carapa guianensis; Crabwood tree ecology; Florestam; Meliaceae; Phenology; Phenophases; Sustainable forest management.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000400618

Adubação nitrogenada no feijoeiro em sistema de semeadura direta e preparo convencional do solo - DOI: 10.4025/actasciagron.v30i5.5967
Provedor de dados: 1
Autores: Gomes Junior, Francisco Guilhien; ESALQ - USP; Sá, Marco Eustáquio de; UNESP; Muraishi, Cid Tacaoca; UNESP.
A aplicação de N em cobertura é indispensável para a obtenção de altas produtividades do feijoeiro e estudos de respostas ao fertilizante em condições de semeadura direta e preparo convencional do solo ainda consistem numa necessidade fundamental. Assim, a pesquisa teve como objetivo avaliar o efeito da aplicação de N e a produtividade do feijoeiro em sistema de semeadura direta e de preparo convencional do solo. O delineamento experimental foi o de blocos casualizados em esquema fatorial (2x8+1) com quatro repetições. Os tratamentos constituíram-se da combinação das doses de 40 e 80 kg ha-1 de N aplicadas em oito épocas do estádio V4 do desenvolvimento vegetativo (V4-3, V4-4, V4-5, V4-6, V4-7, V4-8, V4-9 e V4-10), além da testemunha sem N em cobertura. O...
Palavras-chave: 5.01.03.05-9 Melhoramento Vegetal Phaseolus vulgaris L.; Cobertura morta; Adubo nitrogenado; Fenologia Phaseolus vulgaris L.; Mulching; Nitrogen fertilizer; Phenology.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/5967

Nitrogênio no feijoeiro em sistema de plantio direto sobre gramíneas - DOI: 10.4025/actasciagron.v30i3.3549
Provedor de dados: 1
Autores: Gomes Junior, Francisco Guilhien; ESALQ/USP; Sá, Marcos Eustáquio de; FAE/UNESP; Valério Filho, Walter Veriano; FAE/UNESP.
O adequado suprimento de N é primordial para se obter alta produtividade de sementes de feijão, entretanto, as respostas a esse nutriente, em sistema de plantio direto, podem variar em função da espécie e quantidade de palha. O objetivo do trabalho foi avaliar a resposta do feijoeiro à aplicação de N, em sistema de plantio direto, sobre palhada de milho, milheto e braquiária. Foram realizados três experimentos, um para cada espécie de gramínea. O delineamento experimental foi o de blocos casualizados disposto em esquema fatorial 5x2x2, correspondente a cinco doses de N (0, 30, 60, 90, 120 kg ha-1) aplicadas em duas épocas da fase vegetativa (3ª e 6ª folha trifoliolada) e duas cultivares (IPR Juriti e Pérola), com quatro repetições. A cultivar IPR Juriti...
Palavras-chave: 5.01.00.00-9 Agronomia Phaseolus vulgaris L.; Palhada  adubação nitrogenada; Fenologia; Rendimento de sementes 5.01.03.00-8 Fitotecnia Phaseolus vulgaris L.; Mulching; Nitrogen fertilizer; Phenology; Seed yield.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/3549

Phenological and yield performance of black and redberry cultivars in western Paraná State - doi: 10.4025/actasciagron.v34i4.15528
Provedor de dados: 1
Autores: Pio, Rafael; Universidade Federal de Lavras; Campagnolo, Marcelo Angelo; Universidade Estadual do Oeste do Paraná.
Because grain cultivation in Paraná is becoming unsustainable on small farms, growing fruit should be explored on these production units. Thus, the objective of the present work was to quantify the phenology and production of cultivars of black and redberry plants in the western region of Paraná in the town of Marechal Cândido Rondon, Paraná State, Brazil. The experimental design was in randomized blocks, with four blocks and eleven treatments (blackberry cultivars Arapaho, Xavante, Ébano, Comanche, Caingangue, Choctaw, Tupy, Guarani, Brazos and Cherokee and the redberry plants). In each plot, composed of five plants, the phenological and production data for the 2009/10 and 2010/11 production cycles were collected, and the physicochemical quantification of...
Tipo: Pesquisa Empírica de Campo
Palavras-chave: 5.01.03.00-8 Rubus spp.; Rubus rosifolius; Phenology; Fruit quality Fitotecnia Rubus spp.; Rubus rosifolius; Phenology; Fruit quality.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/15528

Growing Princesa apples under semiarid conditions in northeastern Brazil - doi: 10.4025/actasciagron.v35i1.15066
Provedor de dados: 1
Autores: Lopes, Paulo Roberto Coelho; Empresa Brasileira de Pesquisa Agropecuária; Oliveira, Inez Vilar de Morais; Empresa Brasileira de Pesquisa Agropecuária; Silva, Raissa Rachel Salustriano da; Universidade  Federal do Piauí; Cavalcante, ìtalo Herbert Lucena; Universidade  Federal do Piauí.
Phenological observations are some of the most sensitive data for the identification of plant species growth in regional climate conditions. Thus, an experiment was conducted from October 2008 to December 2009 to characterize the phenological stages, fruit set and fruit yield of Princesa apples grown under a semiarid climate in northeastern Brazil. Phenological data (stages) were determined in the orchard by daily observations from bud breaking until fruit ripening. The following variables were evaluated: i) fruit set, which is the relation between the number of flowers and the number of fruits (%); ii) the number of fruit per plant; iii) the fruit production per plant (kg); and iv) the fruit yield (t ha-1). Under semiarid conditions, the phenological...
Palavras-chave: Malus domestica; Climatic conditions; Phenology; Cold hours requirement Malus domestica; Climatic conditions; Phenology; Cold hours requirement.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/15066

Harvest growth stages in soybean cultivars intended for silage
Provedor de dados: 2
Autores: Oliveira, Raquel Dias; Silva, Carla Michelle; Mielezrski, Fábio; Lima, José Sidnei Bezerra; Edvan, Ricardo Loiola.
 This study aimed to characterize the harvest phenological stages of soybean cultivars intended for silage. Cultivars were evaluated for dry weight of the composite sample, branches, leaves and pods; wet mass of branches, leaves, pods and ground natural matter. This experiment was a 3 x 2 factorial randomized block design, with four replications each, where the first factor corresponds to the harvest stage: R4, R5 and R6; and the second factor refers to two soybean maturity groups (8.0 and 8.1). A significant interaction was detected only for ground natural matter. Higher values of most traits evaluated were observed for the R6 harvest phenological stage. The cultivar with maturity group 8.0 showed higher values for ground natural matter. 
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phenology; Forage; Glycine max (L.) Merril.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/31837

Sugar content in nectar flowers of siratro (Macroptilium atropurpureum Urb.) - DOI: 10.4025/actascianimsci.v27i1.1248
Provedor de dados: 2
Autores: Toledo, Vagner de Alencar Arnaut de; UEM; Oliveira, Arildo José Braz de; UEM; Ruvolo-Takasusuki, Maria Claudia Colla; UEM; Mitsui, Marina Hitumi; UEM; Vieira, Renata Eunice; UEM; Kotaka, Carolina Satie; UEM; Chiari, Wainer César; UEM; Gobbi Filho, Lucílio; UEM; Terada, Yoko; UEM.
Siratro (Macroptilium atropurpureum Urb.) is a forager with high nutritional values and excellent palatability, and its phenology is almost unknown. Aiming at improving the knowledge and understanding siratro pollinators and floral biology, the total sugar contents on its flowers nectar and the identification of these sugars were determined by, respectively, spectrophotometry and chromatography. The total sugar concentration varied from a maximum of 1.36 and 3.23 mg/flower and a minimum of 0.19 and 0.42 mg/flower. Results showed that the total sugar concentration is high at 8:30 a.m., when the flowers open, and varies slightly during the time the flowers keep open. The variations can be related to the number of insects that visit the flowers, especially...
Palavras-chave: 5.04.03.00-1    Nutrição e Alimentação Animal Macroptilium atropurpureum; Fabaceae; Siratro; Phenology; Spectrophotometric analysis; Nectar 5.04.03.00-1    Nutrição e Alimentação Animal.
Ano: 2005
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/1248

Growth rhythm of Vochysia divergens Pohl (Vochysiaceae) in the Northern Pantanal
Provedor de dados: 3
Autores: Machado, Nadja Gomes; Sanches, Luciana; Aquino, Aryadne Márcia; Silva, Ludymilla Barboza da; Novais, Jonathan Willian Zangeski; Biudes, Marcelo Sacardi.
The Pantanal is the largest wetland in the world, characterized by high biodiversity, but large areas have been invaded by Vochysia divergens, a flood-adapted pioneer and native tree of the riparian forest and Brazilian Savanna. Seasonality in rainfall causes annual rhythms in the tree’s physiology, in which climatic stress factors induce a cambial dormancy in trees and, in consequence, growth zones in the trunk. Current analysis evaluates the seasonal variation of the diameter increase of V. divergens specimens in a seasonal floodable forest of the Northern Brazilian Pantanal. Field sampling was conducted between January and December 2012. Air temperature, relative humidity and precipitation were measured at a micrometeorological station, water level was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências Biológicas; Ecologia diametric increment; Dendrometric bands; Climate-growth relation; Phenology; Cambará Botânica.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/24330

Floristic composition and dispersal syndromes at an urban remnant from the Atlantic forest in Brazilian Northeast - doi: 10.4025/actascibiolsci.v33i4.7142
Provedor de dados: 3
Autores: Moura, Flávia de Barros Prado; UFAL; Duarte, Juliana Maria Moreira; UFS; Lemos, Rosângela Pereira de Lyra; Herbário MAC-IMA.
Floristic composition and dispersal syndromes were determined along one year in an open ombrophilous forest fragment in the Municipal Park of Maceió, Alagoas State, Brazil. A total of 178 species belonging to 61 families were examined. Fabaceae was the most species-rich family, with 24 species. Among sampled species, 123 had their syndromes of diaspore dispersal determined, and most of them (69%) were zoochoric. Anemochoric and autochoric plants represent 11 and 20% from the total, respectively. The data about reproductive phases indicate coincident peaks of flowering and fruiting in August, at the end of the rainy season. The results are in accordance to those expected for ombrophilous forest with poorly defined seasonality.
Tipo: Fenologia
Palavras-chave: 2.00.00.00-6 Atlantic forest; Ombrophilous forest; Phenology 2.03.00.00-0 Atlantic forest; Ombrophilous forest; Phenology.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/7142

Phenological characterization and temperature requirements of Annona squamosa L. in the Brazilian semiarid region
Provedor de dados: 42
Autores: MENDES,DÉBORA S.; PEREIRA,MARLON C.T.; NIETSCHE,SILVIA; SILVA,JOSEILTON F.; ROCHA,JOSIELE S.; MENDES,ATHOS H.; XAVIER,HELISSON R.A.; SANTOS,RAYANE C. DOS.
ABSTRACT  The phenological growth stages of various species of monocotyledonous and dicotyledonous plants can be uniformly coded using the Biologische Bundesanstalt, Bundessortenamt, und Chemische Industrie (BBCH) scale. The aim of the present study was to determine the duration of different phenological stages and the temperature requirements of the sugar-apple, Annona squamosa, during two crop cycles in the semiarid region of Brazil. Phenological stages were divided into eight of ten possible principal stages: (0) bud development, (1) leaf development, (3) shoot/branch development, (5) inflorescence emergence, (6) flowering, (7) fruit development, (8) fruit maturity and (9) senescence and the beginning of dormancy. The phenological cycle of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: BBCH; Sugar-apple; Degree days; Phenology; Pruning timing.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000502293

Population dynamics and reproductive phenology of a harvestman in a tidal freshwater wetland
Provedor de dados: 42
Autores: IGLESIAS,PATRICIA P.; PEREYRA,MARTÍN O.
Abstract  There is a great amount of ecological information for terrestrial arthropods in several types of habitats, but few studies have focused on populations living in tidal freshwater wetlands. During a two-year field survey, we studied the temporal dynamics of the harvestman Discocyrtus prospicuus inhabiting a freshwater wetland exposed to predictable tides and unpredictable floods. We also explored the effects of temperature, precipitation, and tide level on the population dynamics and reproductive phenology. Our findings are markedly different from those reported in other harvestman species living in different habitats and also from conspecific populations living in the mainland. Adults, subadults, and juveniles remain active throughout the year,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abiotic factors; Breeding season; Phenology; Sex-ratio; Unpredictable floods.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000100710

Saturniid moths (Lepidoptera: Bombycoidea) from an Atlantic Rain Forest fragment in southeastern Brazil
Provedor de dados: 42
Autores: ALBERTONI,FABIANO F.; MIELKE,CARLOS G.C.; DUARTE,MARCELO.
Abstract The light-attracted silk moths (Lepidoptera: Saturniidae) of the Boraceia Biological Station in the municipality of Salesópolis, state of São Paulo, southeastern Brazil have been sampled over more than seven decades (1942-2013). A total of 6,288 individuals (including a gynandromorph) belonging to five subfamilies, 46 genera and 133 species were identified. Hemileucinae was the most abundant and speciesrich subfamily, followed by Ceratocampinae, Arsenurinae, Saturniinae, and Oxyteninae. Hylesia Hübner, Automeris Hübner, and Dirphiopsis Bouvier (Hemileucinae) were the dominant genera in abundance and species richness. Only Automeris illustris (Walker), Gamelia remissoides Lemaire, and Hidripa paranensis (Bouvier) (Hemileucinae) were recorded in all...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservation; Inventory; Neotropical; Phenology; Research promotion; Silk moths.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602827

Ecological strategies of Al-accumulating and non-accumulating functional groups from the cerrado sensu stricto
Provedor de dados: 42
Autores: Souza,Marcelo C. de; Bueno,Paula C.P.; Morellato,Leonor P.C.; Habermann,Gustavo.
The cerrado's flora comprises aluminum-(Al) accumulating and non-accumulating plants, which coexist on acidic and Al-rich soils with low fertility. Despite their existence, the ecological importance or biological strategies of these functional groups have been little explored. We evaluated the leaf flushing patterns of both groups throughout a year; leaf concentrations of N, P, K, Ca, Mg, S, Al, total flavonoids and polyphenols; as well as the specific leaf area (SLA) on young and mature leaves within and between the groups. In Al-accumulating plants, leaf flushed throughout the year, mainly in May and September; for non-accumulating plants, leaf flushing peaked at the dry-wet seasons transition. However, these behaviors could not be associated with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Aluminum; Community; Herbivory; Mineral nutrition; Phenology; Specific leaf area.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000200813

Hawkmoth fauna (Sphingidae, Lepidoptera) in a semi-deciduous rainforest remnant: composition, temporal fluctuations, and new records for northeastern Brazil
Provedor de dados: 42
Autores: PRIMO,LUIS M.; DUARTE,JOSÉ A.; MACHADO,ISABEL C.
We carried out a qualitative and quantitative inventory of the hawkmoth fauna (Sphingidae) of an area of semi-deciduous seasonal rainforest in the state of Pernambuco (Tapacurá Ecological Station), northeastern Brazil. Hawkmoths were sampled monthly from October 2004 to February 2007 (27 months). We recorded 31 species from 16 genera, three tribes, and three families. Macroglossinae was the most abundant subfamily and represented ca. 71% of all species. Out of the 277 individuals collected, 88.4% were males. Five new records were made for northeastern Brazil: Enyo gorgon (Cramer, 1777), Perigonia stulta (Herrich-Schäffer, [1854]), Eupyrrhoglossum sagra (Poey, 1832), Nyceryx coffaeae (Walker, 1856) and Xylophanes chiron (Drury, 1773). Eight further species...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dry forest; Pernambuco Endemism Center; Phenology; Seasonality; Sphingidae abundance and richness; Sphingophily.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000301177

Surface fire drives short-term changes in the vegetative phenology of woody species in a Brazilian savanna
Provedor de dados: 49
Autores: Silvério,Divino Vicente; Pereira,Oriales Rocha; Mews,Henrique Augusto; Maracahipes-Santos,Leonardo; Santos,Josias Oliveira dos; Lenza,Eddie.
We evaluated the effects of fire on the vegetative phenological behavior (crown foliage cover, sprouting, mature and young leaves) of woody species at two sites in the Brazilian savanna, one of which had been accidentally burned. We used generalized additive mixed models to test the hypothesis that: 1) fire damages total foliage cover, thus leading to changes in vegetative phenological patterns. As this hypothesis was corroborated, we also tested whether 2) the damage caused by fire to the total crown foliage cover and mature leaves is greater in evergreen than in deciduous species, and 3) the negative effects of fire on vegetative phenology persist after the first fire-free year. The first two hypotheses were corroborated, but the third was not. Fire...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crown foliage cover; Deciduity; Fire ecology; Phenology; Sprouting.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000300104

Growth rings in cerrado woody species: occurrence and anatomical markers
Provedor de dados: 49
Autores: Marcati,Carmen Regina; Oliveira,Julia Sonsin; Machado,Silvia Rodrigues.
Growth ring occurrence was investigated in 48 representative species of cerrado in the state of São Paulo, Brazil. We characterized growth ring markers and described the growth layer structure of the basal portion of the most developed stem branches in woody plants. Growth rings were poorly defined in 33%, well defined in 61% and not discernable in 6% of the species studied. Various anatomical features were used as growth markers, such as: thick-walled latewood fibres; radially flattened latewood fibres; fibre zones; distended rays; marginal bands of axial parenchyma; marginal lines of parenchyma; and closeness of the narrow bands of scalariform parenchyma. In a single species, different growth ring markers often occurred together. Within growth layers,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Increment zones; Habit; Phenology; Wood anatomy.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032006000300001

Seasonal influence on the essential oil production of Nectandra megapotamica (Spreng.) Mez
Provedor de dados: 52
Autores: Amaral,Lúcio de Paula; Tondolo,Juliana Simoni Moraes; Schindler,Bianca; Silva,Daniela Thomas da; Pinheiro,Carlos Garrido; Longhi,Solon Jonas; Mallmann,Carlos Augusto; Heinzmann,Berta Maria.
This study evaluated the seasonal influence on the yield and chemical composition of the essential oil (EO) of Nectandra megapotamica. Fresh young (YL) and old leaves (OL) obtained from three trees in each season (Nov/2010 to Sep/2011) collected in Santa Maria-RS were hydrodistilled in triplicate. The chemical composition was determined by the gas chromatography coupled to mass spectrometry (GC-MS) and the yield on dry basis was evaluated by two-way ANOVA (seasons, development stage). Spring (Sp) and summer (Su) showed higher average incomes (0.45 and 0.33%), which occurred when flowering, fruiting, and growth of YL and senescence of OL took place, while autumn (Au) presented the lowest yield (0.25%) during the rustification of OL. The highest yield was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Lauraceae; Phenology; Variability of volatile oils; Terpenes.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132015000100012

Plant reproductive phenology and dispersal patterns after natural regeneration in a limestone mining spoil banks
Provedor de dados: 52
Autores: Frenedozo,Rita de Cássia.
Studies were carried out on the phenological patterns and dispersion of a plant community developed naturally after limestone mining operations, in accumulated materials of wastes (spoil banks). The objectives were to focus the seasonality of plant reproductive in a degraded environment; to analyze the community according to dispersal syndrome and to know about plant resources for the animals Monthly observations of flowering and fruiting patterns of the community were done, comparing the herbaceous, shrubs and woody species. Proportion of anemochorous and autochorous was higher in the herbaceous and shrubby strata. The zoochorous ones, on the contrary, were more frequent in the woody stratum. This study showed that natural introduction of the animals at...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phenology; Mining; Brazil; Plant dispersal; Herbivores; Community.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000200014

Environmental factors affecting sporulation of Fuligo septica (Myxomycetes) on sugar cane bagasse
Provedor de dados: 52
Autores: Chiappeta,Alda de Andrade; Sena,Kêsia Xisto Fonseca R. de; Cavalcanti,Laise de Holanda.
The influence of environmental factors on sporulation of Fuligo septica (L.) Wigg. and the abundance of this species on sugar cane bagasse (Saccharum officinarum L.), stored outdoors was studied.In Northeastern Brazil, between January/1997 and January/1998, a total of 29 specimens were collected through monthly collections of aethalia. The relationships between the abundance of aethalia and rainfall, temperature, relative humidity of the air and insolation were studied. Results indicated that on the substrate analyzed, F. septica was an abundant species. Sporulation occurred in all seasons of the year, with a well-defined peak at the end of winter and beginning of spring (August/September),which was strongly influenced by rainfall.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fuligo septica; Myxomycetes; Phenology; Environmental factors.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000100002

Population dynamics, gregarious behavior and oviposition preference of Neomegalotomus parvus (Westwood) (Hemiptera: Heteroptera: Alydidae)
Provedor de dados: 52
Autores: Ventura,Maurício Ursi; Panizzi,Antônio Ricardo.
Interactions between Neomegalotomus parvus (Westwood) (Coreoidea: Heteroptera: Alydidae) and host plants were investigated including population monitoring throughout the year, gregarious behavior in the field, and oviposition preference among host plants and one non-host plant in field cages. Cowpea, Vigna unguiculata (L.) Walp., soybean, Glycine max (L.) Mill. cv. BR 37, pigeon pea, Cajanus cajan (L.) Mill., pigeon pea cv. Anão, and lablab, Dolichos lablab L. were monitored in the field. N. parvus was found on host plants during 11 months. The shortest period of occurrence was observed on soybean and the longest on lablab. Insects were found mostly on mature pods. Contagious distribution (negative bionomial) was detected, characterizing the aggregation....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hemiptera; Alydidae; Host plants; Phenology; Oviposition.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132003000100006

Biology, Flowering and Fruiting of the Cactus Opuntia spp.: A Review and Some Observations on Three Varieties in Morocco
Provedor de dados: 52
Autores: Arba,Mohamed; Falisse,André; Choukr-Allah,Redouane; Sindic,Marianne.
ABSTRACT The cactus is a succulent plant resistant to droughts. According to the recently reviewed classification, cacti belong to the family of Opuntiaceae Desv. (synon. Cactaceae Juss.) with Opuntia Mill. as the typical genus. This genus is economically the most important in the family, as it includes a group of cactus pear plants which play an important role in the agricultural systems of arid and semi-arid regions. Flowering of the cactus pear fruit is an important determinant of the fruit harvesting period. The goal of this paper is to present the physiology of the cactus pear and to explain in detail the biology of its flowering and fruiting processes. This study is also enriched by our observations on the flowering and fruiting of three varieties of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Opuntia ficus-indica; Phenology; Flowering; Fruiting; Cactus pear.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132017000100434

Reproductive phenological patterns of cerrado plant species at the Pé-de-Gigante Reserve (Santa Rita do Passa Quatro, SP, Brazil): a comparison between the herbaceous and woody floras
Provedor de dados: 57
Autores: BATALHA,M. A.; MANTOVANI,W.
A natural vegetation area, with 1269 ha, composed mainly by cerrado, located at Santa Rita do Passa Quatro Municipality, São Paulo State, southeastern Brazil (21°36-39'S, 47°36-38'W), was studied. From September 1995 to February 1997, a floristic survey was carried out, when all vascular plant species at reproductive stage were collected. The flowering and fruiting patterns of the community were studied, comparing the herbaceous and the woody species. In the herbaceous component, 239 species were found and, in the woody one, 108 species. The woody species flowered mainly at the beginning of the rainy season, while the herbaceous ones produced flowers generally at the end of that season. The proportion of anemo and autochorous species was greater in the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Savanna; Phenology; Pé-de-Gigante; São Paulo; Brazil.
Ano: 2000
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71082000000100016

Phenology and ripening of Vitis vinifera L. grape varieties in São Joaquim, southern Brazil: a new South American wine growing region
Provedor de dados: 118
Autores: Gris,Eliana F; Burin,Vívian M; Brighenti,Emilio; Vieira,Hamilton; Bordignon-Luiz,Marilde T.
This study investigated the phenology and the ripening characteristics of Vitis vinifera grapes Cabernet Franc, Merlot, Sangiovese and Syrah in two consecutive vintages (2006 and 2007) in order to evaluate the adaptation of these recently cultivated varieties in São Joaquim, Santa Catarina State, Brazil. The phenological data observed, budburst, blooming, setting, véraison and harvest were monitorated. In order to monitor the ripening levels of pH, total acidity, total soluble solids, maturation Índex, total monomeric anthocyanins, total polyphenols index and color index were analyzed.The results show that the phenological cycle from budburst to harvest occurred within a frame time of 191 and 219 days and the heat summation requirements varied between...
Tipo: Journal article
Palavras-chave: Vitis vinifera L.; Climatic parameters; Grapes; Phenology; Ripening.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000200007

Comparing two versions of a non-linear model for simulating leaf number and developmental stages in maize based on air temperature
Provedor de dados: 65
Autores: Streck,Nereu Augusto; Gabriel,Luana Fernandes; Samboranha,Flavia Kaufmann; Lago,Isabel; Schwantes,Ana Paula; Schons,Alfredo.
The Wang and Engel (WE) model simulates crop development considering the non-linear response of plant development to temperature. Daily air temperature is the input for the temperature response function [f(T)] in the WE model, and because there are several approaches for computing daily temperatures, there are several ways to calculate the f(T). The objective of this study was to compare two versions of the WE model for simulating leaf number and developmental stages in maize, considering two approaches for imputing daily air temperature (daily mean air temperature and daily minimum/maximum air temperature). A two-year field experiment with the maize variety BRS Missões sown in several sowing dates was conducted in Santa Maria, Rio Grande do Sul State,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Crop models; Zea mays; Leaf number; Phenology.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782009000300003

Population Study of Diabrotica speciosa (Ger.) (Coleoptera: Chrysomelidae) in Fall / Winter Season
Provedor de dados: 65
Autores: Ventura,Maurício Ursi; Gomes,Marcos Roberto.
Population studies of D. speciosa on fall / winter crops were conducted. Larvae were monitored on maize (Zea mays L.), wheat (Triticum aestivum L.) and black oats (Avena strigosa Schreb.) and beetles on soybeans (Glycine max (L.) Mill., maize, common beans (Phaseolus vulgaris L.), wheat and black oats from March 23, 2001 to August 24, 2001. Soybean, maize, common beans, wheat and oats were sown on December 28, 2000; February 9, 2001; March 2, 2001; April 26, 2001 and May 11, 2001, respectively. Maize and common beans were grown on latter growing season. Adult beetles of D. speciosa were collected throughout the sampling period. Greatest beetles population peak occurred on wheat in August 3, 2001 which coincided with flowering period. Population dynamics of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Insecta; Host plants; Phenology; Latter growing season; Samples.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000600042

A temperature response function for development of the chrysanthemum (Chrysanthemum x morifolium Ramat.)
Provedor de dados: 65
Autores: Streck,Nereu Augusto.
Developmental models can help growers to decide management practices, and to predict flowering and harvest time. Currently, a double exponential function is proposed as a generalized temperature response function for chrysanthemum. This function is not the most appropriate because its parameters lack biological meaning. The objective of this study was to develop a nonlinear temperature response function of chrysanthemum development that has parameters with biological meaning. The proposed function is a beta function with three parameters, the cardinal temperatures (minimum, optimum, and maximum temperatures for development), which were defined as 0, 22, and 35ºC. Published data of temperature response of development of three cultivars, which are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phenology; Flowering; Model.
Ano: 2004
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782004000100008

Estimating the development of landrace and improved maize cultivars as a function of air temperature
Provedor de dados: 65
Autores: Langner,Josana Andreia; Streck,Nereu Augusto; Dalmago,Genei Antonio; Reiniger,Lia Rejane Silveira; Durigon,Angelica; Silva,Stefanía Dalmolin da; Lago,Isabel; Scheffel,Lúcio Gabriel; Poersch,Anderson Haas.
ABSTRACT: The objective of this study was to determine the maximum development rates for the phases of emergence, vegetative and reproductive, and to test the performance of the Wang and Engel (WE) model for simulating the development of landrace and improved maize cultivars sown on different dates. Model calibration was with data collected from a field experiment with a sowing date on December 13, 2014, and the model was tested with independent data from experiments with five sowing dates (August 20 and November 4, 2013, February 3 and August 15, 2014, and January 7, 2015) in Santa Maria, RS. The experiment was a complete randomized block design with four replicates. The dates of emergence (EM), silking (R1), and physiological maturity (R6) of two...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zea mays L; Modeling; Phenology; Developmental stages.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016001001737

Selection of plum cultivars for subtropical regions
Provedor de dados: 65
Autores: Pio,Rafael; Farias,Daniela da Hora; Bianchini,Flávio Gabriel; Peche,Pedro Maranha; Bisi,Rayane Barcelos.
ABSTRACT:  Plum growing is widespread in temperate zones. In Brazil, the exploitation of this fruit tree is extended from the colder regions of the state of Rio Grande do Sul to the south of the state of Minas Gerais. However, cultivars exploited at subtropical regions are scarce due to competition. The present study aimed to select productive cultivars of plums adapted to Brazilian subtropical conditions. In this respect, the plum cultivars ‘Fla 87-7’, ‘Gema de Ouro’, ‘Grancoure’, ‘Harry Pickstone’, ‘Januária’, ‘Santa Rosa’ and ‘Satsuma’ were grafted on the ‘Okinawa’ rootstock ‘and evaluated by two cycles in the municipality of Lavras, MG, Brazil. The phenological development, physical and chemical properties of fruits, average number of fruits per plant,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Prunus salicina; Phenology; Yield.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001100201

Dry matter accumulation in genotypes of bean submitted to different levels of nitrogen
Provedor de dados: 64
Autores: Araújo,Juliano Ribeiro; Ramalho,Magno Antonio Patto; Bruzi,Adriano Teodoro; Abreu,Ângela de Fátima Barbosa.
The objective of this study was to verify the response of dry matter accumulation in bean lines (Phaseolus vulgaris L.) to different levels of nitrogen fertilizers. Six genotypes ('BRSMG Majestoso', 'Pérola', MA-I-18.13, 'Ouro Negro', 'BRSMG Talismã', and MA-I-2.5) were evaluated in Lavras, testing three N levels (0, 60, and 120 kg/ha) and using ammonium sulphate as N source. The experimental design adopted was the randomized block design in a 6 x 3 factorial structure with three replications and the plots were composed of five 5-m rows. The seeds were sown in November 2005 and July 2006. Total dry mass of five competitive plants was evaluated after 35 days from sowing, harvested from a pre-determined place in the useful area of the plots. This process was...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nitrogen fertilizer; Phenology; Differential response; Phaseolus vulgaris.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542009000400007

Water restriction in different phenological stages and increased temperature affect cowpea production
Provedor de dados: 64
Autores: Barros,Juliane Rafaele Alves; Guimarães,Miguel Julio Machado; Simões,Welson Lima; Melo,Natoniel Franklin de; Angelotti,Francislene.
ABSTRACT Water deficit and high temperatures are abiotic factors that most limit plant growth and development. However, its effects depend on crop development stage and on stress duration and intensity. Thus, the objective of was to evaluate the development of cowpea subjected to water restriction in different phenological stages and to increase in air temperature. The experiment was conducted with the cultivar ‘Carijó’, in growth chambers, in a 4 x 3 x 2 factorial arrangement, corresponding to levels of water availability (25, 50, 75, and 100%,), phenological stages (vegetative, flowering and pod filling) and temperature regimes (T°1: 20-26-33 °C e T°2: 24.8-30.8-37.8 °C), respectively. Reduction of water availability in the vegetative and flowering...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Abiotic stress; Oxidative stress; Phenology; Vigna unguiculata.
Ano: 2021
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542021000100200

Agrometeorological conditions associated with phenological responses of tucumã-do-pará (Astrocaryum vulgare Mart.)
Provedor de dados: 64
Autores: Martorano,Lucieta Guerreiro; Oliveira,Maria do Socorro Padilha de; Mendes,Gleidson Guilherme Caldas; Moraes,José Reinaldo da Silva Cabral de; Pinheiro,Daniel Pereira; Oliveira,Afonso Henrique Moraes.
ABSTRACT Palms are among the class of hyperdominant species in the Amazon region, and for the tucumã palm (Astrocaryum vulgare Mart.) demand of climatic and phenological information in order to support strategic planning and sustainable management of this palm species native to the Amazon basin. The objective of this work was to evaluate agrometeorological conditions associated to phenological responses of tucumã as a species that has high economic potential for fruit pulp production. Meteorological data were collected during the period in which data were also collected for the phenology of the germplasm bank. Sensors were installed to monitor temperature and air relative humidity to where they are observed as phenophases. Analyses were conducted to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Palmaceae; Phenology; Climate; Germplasm bank.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000200127