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| Registros recuperados: 542 | |
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| Silva,Priscila Albertasse Dutra da; Scariot,Aldicir. |
| The fruits of the palm Butia capitata are harvested from wild populations. A lack of knowledge of their ecology has hindered the establishment of sustainable management practices. We investigated fruit biometric parameters, yield and phenology in two populations of B. capitata in the cerrado (savanna) in the north of the state of Minas Gerais, Brazil, at two study sites: in the communities of Mirabela (Fazenda Baixa site, studied from December 2006 through December 2007) and Campos (studied throughout 2007). Overall, adult palms produced an annual average of 7.6 leaves. At the Fazenda Baixa site, the mean annual number of infructescences was 4.9, compared with only 1.6 at the Campos site, and the annual yield was 197-373 and 145-468 fruits per tree (in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Extractivism; Fruiting; Management; Coquinho-azedo; Post-harvest ripening. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062013000300015 |
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| Matsuo, Eder; UFV; Sediyama, Tuneo; UFV; Barros, Hélio Bandeira; UFV; Cruz, Cosme Damião; UFV; Oda, Mário do Carmo; UFV; Teixeira, Rita de Cássia; UFV. |
| Avaliaram-se a estabilidade e a previsibilidade da qualidade fisiológica de sementes de 13 genótipos de soja [Glycine max (L.) Merrill], produzidas em três localidades do município de Cristalina, Estado de Goiás. Os ensaios de melhoramento foram conduzidos no campo no ano agrícola 2004/05. Os ensaios de avaliação da qualidade das sementes foram realizados nos laboratórios e casa-de-vegetação da Universidade Federal de Viçosa, instalados no delineamento inteiramente casualizado com quatro repetições. Foram realizados os testes de germinação em papel toalha, emergência em leito de areia, índice de velocidade de emergência e análises de estabilidade pelos métodos propostos por Lin e Binns (1988) e Annicchiarico (1992). As médias de porcentagem de germinação,... |
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Palavras-chave: 5.02.01.03-4 Genética e Melhoramento Florestal Glycine max; Manejo 5.02.01.03-4 Genética e Melhoramento Florestal Glycine max; Management. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/1726 |
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| Bittencourt, Fábio; Damasceno, Danielle Zanerato; Lui, Tatiane Andressa; Signor, Altevir; Sanches, Eduardo Antônio; Neu, Dacley Hertes. |
| Transportation of live fish is routinely done in aquaculture; therefore, the aim of this study was to analyze the water quality and survival rate of Rhamdia quelen fry (2.55±0.44 g) following 4, 8 and 12h of simulated transportation, at stock densities of 30 and 60 fry 5 L-1 and temperatures 15, 20 and 25oC. Dissolved oxygen, pH, electrical conductivity, total ammonia, nitrite, nitrate, turbidity, total alkalinity and survival were analyzed. Temperature and time had a significant influence on ammonia, pH, electrical conductivity, and dissolved oxygen levels, and fish died after 12 hours of transportation simulation when kept at 20 and 25ºC. The density directly affected the water quality parameters, such as the increase in electrical conductivity and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ciências Agrárias; Recursos Pesqueiros e Engenharia de Pesca; Aquicultura aquaculture; Ammonia; Loading densities; Management; Mortality.. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/37285 |
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| Leite, João Ricardo Avelar; Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Guimarães, Adriano de Souza; Rigueira, João Paulo Sampaio; Gomes, Virgílio Mesquita. |
| This study aimed to evaluate the structural, productive and nutritional characteristics of cactus pear (Nopalea cochenillifera Salm Dyck. cv. Miúda/Doce) under five nitrogen doses and two planting orientations. A randomized block design in a 5 x 2 factorial scheme was used in the scheme: five nitrogen doses (0, 150, 300, 450 and 600 kg of N ha-1), and two planting orientations (North/South and East/West), with three replicates. Except for the thickness of the secondary (p = 0.04) and tertiary cladodes (p = 0.02), the morphometric characteristics of the cactus pear were not influenced by the nitrogen doses (p > 0.05). The mean height was 120 cm, the areas of the primary, secondary and tertiary cladodium were 160.9; 208 and 158.4 cm², respectively. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ciências Agrárias; Zootecnia; Forragicultura e Pastagens biomass; Management; Morphometry; Semiarid; Viability.. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/38325 |
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| Lomele, Renata Leonardo; UNESP - Botucatu - SP; Evangelista, Adriana; UNESP - Botucatu - SP; Ito, Mônica Miyuki; UNESP - Botucatu - SP; Ito, Érica Harue; UNESP - Botucatu - SP; Gomes, Silvia Maria Alves; UNESP - Botucatu - SP; Orsi, Ricardo Oliveira; UNESP - Botucatu - SP. |
| Os objetivos do estudo foram investigar a influência de produtos naturais como capim-limão (Cymbopogon citratus), folhas de abacateiro (Persea americana), casca de café (Coffea arabica) e sementes de mamona (Ricinus communis) na defensividade de Apis mellifera, e avaliar o efeito destes produtos no desenvolvimento populacional da colmeia. O comportamento defensivo foi avaliado por meio do tempo da primeira ferroada (TPF), número de ferrões (NFB) e, o desenvolvimento populacional, pela área de cria aberta e fechada. Observou-se que o tratamento fumaça + sete sementes de mamona apresentou aumento significativo no TPF, em relação ao tratamento sem e com fumaça de maravalha. Com relação ao NFB, verificou-se que os tratamentos fumaça de maravalha + sete... |
| Tipo: Maneno |
Palavras-chave: 5.04.00.00-2 Apicultura; Defensividade; Manejo 5.04.05.02-0 Beekeeping; Defensiveness; Management. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/8486 |
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| Oliveira, Euclides Reuter de; Universidade Estadual de Montes Claros/ Mestrando em Zootecnia; Monção, Flávio Pinto; Universidade Estadual Paulista "Júlio de Mesquita Filho"; Gabriel, Andréa Maria de Araújo; Universidade Federal da Grande Dourados; Góes, Rafael H. de T. e Buschinelli de; Universidade Federal da Grande Dourados; Lempp, Beatriz; Universidade Federal da Grande Dourados; Moura, Lais Valenzuela; Universidade Federal da Grande Dourados. |
| The aim of this work was to determine ruminal degradation of neutral detergent fiber of grasses of the genus Cynodon, harvested at four cutting ages. It was used a randomized block design, with five treatments arranged in a split plot, the five evaluated genotypes: Tifton 85, Jiggs, Russel, Tifton 68 and Vaquero; were the plots and ages of cutting were the subplots: 28, 48, 63 and 79 days. By adding one day in the cutting age, there was a linear reduction in the effective degradability of neutral detergent fiber of blade and stem of 0.16 and 0.18%, respectively. The increase in the cutting age had a linear and positive influence on the undegradable neutral detergent fiber with daily increments for leaf and stem of 0.12 and 0.18%, respectively. At the 28... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.04.00.00-2 degradation; Forage; Ruminants; Management. |
| Ano: 2014 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22469 |
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| Muniz, Elneison da Rosa; UFPR; Chaves, Paulo de Tarso; UFPR. |
| No litoral brasileiro, a legislação costuma regular as práticas pesqueiras segundo o ciclo de vida das espécies-alvo, mas o fato deste não ser coincidente entre as espécies dominantes nas capturas dificulta o manejo em pescarias multiespecíficas. No litoral de Santa Catarina, o defeso aplica-se apenas à pesca de arrasto, e para tal considera o período reprodutivo do camarão sete-barbas, Xyphopenaeus kroyeri. O presente trabalho investiga a incidência da atividade pesqueira sobre indivíduos em reprodução da betara preta, Menticirrhus americanus, espécie comercialmente apreciada e frequente nas pescarias. As amostragens ocorreram em 2006 e 2007, em desembarques do município de Itapoá, norte do Estado (26°00’S; 48°36’W). Calcularam-se os valores de proporção... |
| Tipo: Atividade reprodutiva |
Palavras-chave: 5.06.01.00-8 Recursos Pesqueiros Marinhos. Reprodução; Peixes; Defeso; Pesca Zoologia breeding; Fish; Management; Fishing. |
| Ano: 2008 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/1230 |
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| Alizadeh, Esmaeil. |
| Alfalfa weevil (Hypera postica Gyllenhal.) control is traditionally based on the use of chemical insecticides. Due to the side effects of these compounds, there are many motivations for the use of integrated control methods, which may include the use of biopesticides (microbial and botanical). The result of the effect of seven doses of the tested biopesticides (500, 1000, 1500, 2000, 2500, 3000 and 3500 ppm) under laboratory conditions indicated that the insecticides Azadiractin® (1859.971 ppm) and Biobit® (2000.57 ppm) were of the highest, while Basiokara® (3178.697 ppm) and Naturalis® (2973.246 ppm) were of the lowest lethality. Field experiments were carried out based on randomized complete block design with 10 treatments and 4 replications. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biopesticide; Control; Forage; Lucerne; Management. |
| Ano: 2019 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5367 |
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| Youssef, Mahmoud; Abd Abd- El-Khair, Hassan; El-Nagdi, Wafaa M.A.. |
| Abstract: Three experiments were conducted in a greenhouse to study the nematicidal activity of Bacillus subtilis, B. megaterium, B. pumilus and Pseudomonas fluorescens, Trichoderma harzianum, T.viride and T. vierns against nematode parameters of Meloidogyne incognita infecting sugar beet. Experiment I was conducted to test B. subtilis, B. megaterium, B. pumilus and P. fluorescens, T. harzianum , T. viride and T. vierns as single treatment. T. vierns highly reduced the galls number by 74%, followed by B. pumilus (73%), T. viride (73%), B. subtilis and T. harzianum (71%), B. megaterium (71%) and P. fluorescens (60%). Also, T. vierns caused the highest percentages reduction of egg-masses numbers (80%), followed by B. pumilus, T. harzianum and T. viride that... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Management; Meloidogyne incognita; Sugar beet; Bacterial and fungal suspensions. |
| Ano: 2018 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/4611 |
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| Cruz-Labana,J. D.; Tarango-Arámbula,L. A.; Alcántara-Carbajal,J. L.; Pimentel-López,J.; Ugalde-Lezama,S.; Ramírez-Valverde,G.; Méndez-Gallegos,S. J.. |
| In rural areas of Mexico, the native "escamolera" ant (Liometopum apiculatum Mayr) is socioeconomically important. However, this ant is being exploited unsustainably, and studies of habitat of this species in central Mexico are nonexistent. During spring-summer 2012, fourteen habitat variables were evaluated, habitat use by the ant was identified and its nest density was estimated. Data were analyzed with stepwise logistic regression, correspondence analysis, Chi-square and simultaneous Bonferroni confidence intervals analyses, and the minimum Akaike Information Criteria. The variables that better described the presence of the ant were width of the agave pineapple, percentage of agaves infested with scale insects, woody plant-cacti-agave density, soil... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Liometopum apiculatum Mayr; Agave; Arid areas; Insects use; Management. |
| Ano: 2014 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952014000600001 |
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| SANT'ANNA,BRUNO S.; BORGES,ROBERTO P.; HATTORI,GUSTAVO Y.; PINHEIRO,MARCELO A. A.. |
| The mangrove crab Ucides cordatus is one of the most exploited crustaceans in Brazil. The present study investigated the breeding season of this species and the period of the “andada” phenomenon, when the crabs are active outside their burrows and perform agonistic behaviors. Furthermore related them to environmental factors, in a mangrove on the coast of Brazil, with inferences about management of this crab. The crabs reproduced from October through February. The “andada” occurred from November through February, with typical characteristics in the first two months, during the full and new moon periods, and was influenced positively by the air and soil temperature, luminosity, and tidal amplitude, and negatively by salinity. Based on the results of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brachyura; Crab; Mangrove; Management; Reproduction. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000301411 |
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| PINHEIRO,MARCELO A.A.; SOUZA,MARCELO R.; SANTOS,LUCIANA C.M.; FONTES,ROBERTO F.C.. |
| ABSTRACT Ucides cordatus is a relevant fishery resource of Brazilian mangroves and requires legal normative to sustainable use based on stock assessment and management. This study evaluated some population parameters (structure, density, abundance, fishery potential and stock) of this crab species in Brazil Southeast (São Paulo, State), discussing the use of the results to delineate fishery management strategies. Density was monthly evaluated (September 1998 to August 1999), using five sample quadrats of 2x2 m. Density (ind.m-2) was indirectly estimated by counting the opened (with biogenic activity) and closed galleries, and contrasted with flooding level by tides using the vertical distribution of macroalgae in the base of trees. Density of U. cordatus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crab; Crustacean; Fishery; Management; Mangrove; Population. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401381 |
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| HUGHES,FREDERIC M.; CÔRTES-FIGUEIRA,JOSÉ EUGÊNIO; DRUMOND,MARIA AUXILIADORA. |
| Abstract Our understanding of the impacts of ongoing global warming on terrestrial species has increased significantly during the last several years, but how climatic change has affected, and will affect, the distribution of earthworms remains largely unknown. We used climate niche modeling to model the current distribution of the giant earthworm Rhinodrilus alatus - an endemic species of the Cerrado Domain in Brazil, which is traditionally harvested and commercialized for fishing bait. R. alatus is sensitive to environmental changes because climate, in synergy with soil attributes, determine its annual reproductive cycle and distribution. The paleoclimatic reconstructions predict important geographical shifts from LGM (~21,000 yBp) to the present... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climate change; Ecological niche modeling; Giant earthworm; Harvesting; Management; Rhinodrilus alatus. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000100605 |
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| Hirata,Ricardo; Suhogusoff,Alexandra; Fernandes,Amélia. |
| Indicators, for groundwater resources, have mostly been employed to define the present status and the degradation tendency, regarding both quantity (under- or overexploitation) and quality (natural and anthropic contamination). This work presents the application of indicators in order to draw a picture of the groundwater resources situation in the 22 Water Resource Management Units (WRMU) of the State of São Paulo. The seven Indicators (I1 to I7) applied provide a general overview of groundwater dependence (I1, I2), availability (I3, I4), and quality (I5, I6, I7). Considering public supply (Indicator 1), one observes that 9 WRMUs show high (>50% of the population supplied by groundwater), 6, intermediate (49-25%), and 7, low (<24%) dependence on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Groundwater; São Paulo; Public water supply; Management; Indicators. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652007000100016 |
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| Registros recuperados: 542 | |
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