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| Registros recuperados: 30 | |
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| Leite,Germano Leão Demolin; Picanço,Marcelo; Jham,Gulab Newandram; Moreira,Márcio Dionízio. |
| Kale Brassica oleracea var. acephala is attacked by whitefly Bemisia tabaci, aphid Brevicoryne brassicae and Thrips tabaci. One of the main reasons for extensive insecticide application is the lack of information about factors that control insect population. The objectives of this study were to investigate the relationships between predators and parasitoids, organic compound leaves, levels of leaf nitrogen and potassium, total rainfall, relative humidity, sunlight and median temperature on the abundance of whitefly, aphid, and thrips in kale genotype "Talo Roxo". The beating tray method, direct counting and magnifying lens were used to estimate the number of these pests, predators and parasitoids. Median temperature, sunlight and relative humidity... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Population dynamics; Nonacosane; Climatic factors; Braconidae. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2005000300001 |
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| Auad,Alexander Machado; Moraes,Jair Campos de. |
| The aphid Uroleucon ambrosiae (Thomas) is considered a pest of hidroponically-grown lettuce, but basic and applied information on its control are scarce in Brazil. The aim of this study was to determine the effect of different temperatures on biological aspects and life history of U. ambrosiae (Thomas) developing on hydroponic lettuce (Lactuca sativa L.) crop. Newly emerged nymphs were placed on 4-cm discs of hydroponic lettuce, var. Verônica, which were maintained on 5-cm Petri dishes, at temperatures of 15, 20 and 25ºC and 14 h photophase, and inside a greenhouse, within micro-cages at room temperature. The duration of development in all nymphal stages varied inversely to temperature. Nymphs maintained at 20ºC and 25ºC, had similar development period.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Insecta; Aphids; Biology; Climatic factors. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162003000400008 |
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| Paraluppi,Norival D.; Castellón,Elóy G.. |
| Five species of calliphorid flies, Chrysomya megacephala (Fabricius, 1794), C. putoria (Wiedemann, 1830), C. albiceps (Wiedemann. 1819), Cochliomyia macellaria (Fabricius, 1775) and Phaenicia eximia (Wiedemann, 1819), were collected hourly belween 6:00 and 18:00h., during five consecutive days per month for 12 moths; using home-made traps baited with rotting bovine lung. The data were statisticaly analyzed with relation to precipitation, temperature, relative humidity and luminosity. The results indicate that precipitation must have acted upon the seasonal abundance of the species, and that these responded equally to temperature, relative humidity and luminosity, throughout the entire day, except for P. eximia, which exhibited greater sensibility to these... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Calliphoridae; Flies; Climatic factors; Flight activity. |
| Ano: 1993 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751993000400012 |
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| Hilário,Sergio D.; Ribeiro,Márcia de F.; Imperatriz-Fonseca,Vera L.. |
| Flight activity of foragers of four colonies of Plebeia remota (Holmberg, 1903) was registered from December 1998 to December 1999, using an automated system (photocells and PLC system). The colonies originated from two different regions: Cunha, state of São Paulo, and Prudentópolis, state of Paraná, Brazil. Flight activity was influenced by different climatic factors in each season. In the summer, the intensity of the correlations between flight activity and climatic factors was smaller than in the other seasons. During the autumn and winter, solar radiation was the factor that most influenced flight activity, while in the spring, this activity was influenced mainly by temperature. Except in the summer, the various climatic factors similarly influenced... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stingless bees; Foraging; Climatic factors; Seasonality; Geographic distribution. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212012000300004 |
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| Khan,MKI; Ali,M; Akter,MA; Zaman,S; Miah,G. |
| ABSTRACT Hilly chickens were characterized from January 2015 to September 2016 considering climate factors (light and heat). The experimental birds were divided into three groups (heat stress; light and control). The heat was generated in the chicken’s shelter by a black shaded light (Lantern) for two to three hours more after sunset. A lighting device (Lantern) was kept in the chicken’s shelter for the same period for increasing daylight duration. The individual chicken’s egg production, egg weight and mature live weight were studied from onset of egg production. It was observed that reddish brown hilly type chicken produced more (100.80 no/year/chicken) and larger sized (43.21g) eggs than spotted chicken (83.4 no/year/chicken and 40.46g). Among the three... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chicken; Climatic factors; Microsatellite; Genetic diversity. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2018000400731 |
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| CARVALHO, M. W. L.; BASTOS, E. A.; ANDRADE JUNIOR, A. S. de; SENTELHAS, P. C.. |
| A tendência atual é que as estações meteorológicas convencionais (EMC) sejam substituídas pelas estações automáticas (EMA). Entretanto, é necessário uma análise para avaliar possíveis diferenças entre os dados das duas estações. O objetivo deste trabalho foi comparar dados meteorológicos diários de temperaturas do ar máxima, mínima e média, velocidade do vento, umidade relativa média do ar, precipitação, pressão e radiação líquida, obtidos por EMC e EMA, bem como a estimativa da evapotranspiração de referência (ETo) por Penman-Monteith em Teresina, PI. Analisou-se o período de janeiro 2008 a dezembro 2013. As comparações estatísticas dos dados foram feitas por meio de análise de regressão, aferindo-se os ajustes com base no coeficiente de determinação... |
| Tipo: Artigo de periódico |
Palavras-chave: Estação meteorológica; Elemento climático; Variável meteorológica; Meteorologia; Climatologia; Meteorology and climatology; Agroclimatology; Climatic factors; Meteorological parameters. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1123440 |
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| Souza, Darclet Terezinha Malerbo; Centro Universitário Moura Lacerda; Silva, Flávio Augusto Santos; Centro Universitário Moura Lacerda. |
| O objetivo deste experimento foi estudar o comportamento forrageiro das abelhas africanizadas Apis mellifera, no decorrer do ano. As coletas foram realizadas na área experimental do Centro Universitário Moura Lacerda, Ribeirão Preto, Estado de São Paulo. Uma vez por mês, durante 12 meses, era realizada uma avaliação da atividade de coleta dessas abelhas anotando-se, das 7h às 18h, 10 min. em cada horário, o número de abelhas que entrava na colmeia carregando pólen ou néctar, com cinco repetições por mês. As abelhas A. mellifera coletaram néctar durante todo o dia aumentando sua frequência até às 12h, e para pólen, essas abelhas preferiram o período da manhã, até as 11h. Concluiu-se que não houve diferença significativa tanto para coleta de néctar quanto... |
| Tipo: Pesquisa experimental |
Palavras-chave: 5.04.01.00-9 Apis mellifera; Fatores climáticos; Forrageamento; Néctar; Pólen Ecologia dos Animais Domésticos e Etologia Apis mellifera; Climatic factors; Foraging; Nectar; Pollen. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/9252 |
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| Reis,Renato F.; Timmer,Lavern W.; Goes,Antonio de. |
| The black spot of citrus (Citrus sp.) is caused by Guignardia citricarpa with ascospore production depending on temperature, leaf wetness, and rainfall. The number of ascospores produced was monitored using a spore trap and climatic factors were recorded using an automated meteorological station of 'Natal' and 'Valencia' sweet orange (Citrus sinensis) orchards in Mogi Guaçu in the state of São Paulo, Brazil, from November 2000 to March 2001. The fruits were bagged to prevent infection and the bags removed from different sets of fruit for one week during each of the 18 weeks of the season in both orchards. Ascospores were produced during the entire experimental period, from spring through summer, primarily after rain events. In both orchards, ascospore... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Citrus sinensis; Phyllosticta citricarpa; Climatic factors. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-41582006000100005 |
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| Sousa,Viviane R. de; Paiva,Paulo C. de; Takiya,Daniela M.; Dias-Pini,Nívia da S.; Couri,Márcia S.. |
| ABSTRACT Agromyzidae (Insecta: Diptera) is a cosmopolitan family of acalyptrate flies, with almost 3,000 species worldwide distributed. Most species are leaf miners on a large number of plants. Among them, Liriomyza Mik, 1894 is a large genus of leaf-miner species that can cause significant damage to economically important crops and is considered agricultural pests, such as Liriomyza sativae Blanchard, 1938 and Liriomyza huidobrensis (Blanchard, 1926), which are herein investigated. The present study deals with the impact of climatic factors (temperature, humidity, and precipitation), seasonality, and parasitoid abundance on leaf-miner infestation during one year in five cultivated crops in Northeastern Brazil. Climatic factors for instance had different... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leaf-miners; Climatic factors; Plant-insect interaction. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212021000100201 |
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| Phoncharoen,Phanupong; Banterng,Poramate; Vorasoot,Nimitr; Jogloy,Sanun; Theerakulpisut,Piyada; Hoogenboom,Gerrit. |
| ABSTRACT: Details on growth and yield for cassava planted on different dates are useful for determining suitable genotypes for particular growing seasons. Our aim was to study growth and yield of cassava planted on different dates. Four cassava genotypes (Kasetsart 50, Rayong 9, Rayong 11 and CMR38-125-77) were evaluated using a randomized complete block design (RCBD) with four replications in six growing periods (20 Apr, 25 May, 30 June, 5 Oct, 10 Nov and 15 Dec 2015-2016) at Khon Kaen, Thailand. Soil properties were determined prior to planting, and crop traits and weather data were recorded. The six planting dates had a statistically significant effect on all crop traits. Low temperatures and solar radiation related to low biomass accumulation rates and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Climatic factors; Environment; Growth analysis; Growing date. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162019001500376 |
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| FARIA, D. A. de; PALLAORO, D. S.; FERRARI, M.; BORBA FILHO, A. B.; ABREU, J. G. de; CAMILI, E. C.; AVELINO, A. C. D.; SALES, K. C.; CAMPELO JUNIOR, J. H.; CARVALHO, C. G. P.. |
| Tipo: Artigo de periódico |
Palavras-chave: Helianthus Annuus; Climatic factors; Correlation; Helianthus. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1119423 |
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| LOURENÇO, E. R. C.; AZEVEDO, P. V. de; PEREIRA, A. R.; BEZERRA, J. R. C.; SABOYA, L. M. F.; ZONTA, J. H.. |
| O experimento de campo foi conduzido na Fazenda Experimental da Empresa de Pesquisa Agropecuária do Rio Grande do Norte (EMPARN), no município de Apodi, localizado no estado do Rio Grande do Norte. O período de estudo foi de 11 de agosto a 31 de outubro de 2015, objetivando a determinação do consumo hídrico da cultura do gergelim (Sesamum indicum L) para as condições edafoclimáticas da chapada do Apodi-RN. Os métodos do balanço hídrico no solo e Penman-Montheith e a relação ETo/ETc foram utilizados para estimar a evapotranspiração da cultura (ETc), a evapotranspiração de referência (ETo) e o coeficiente de cultivo (Kc), respectivamente. A cultura do gergelim - BRS Anahi foi irrigada por aspersores com a aplicação de 534,9 mm de água ao longo do ciclo total... |
| Tipo: Artigo de periódico |
Palavras-chave: Balanço Hídrico; Aptidão Climática; Densidade de Plantio; Sesamum Indicum; Soil water balance; Crop coefficient; Climatic factors. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1107101 |
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| SILVA, N. N. P.; SOUSA, K. K. A.; SILVA, P. H. S. da; SILVA, R. B. Q. da. |
| This study was conducted to investigate parasitism of naturally occurring pentatomid eggs in rice crops in a Cerrado-Caatinga ecosystem during the rainy and dry seasons in Teresina, Piauí, Brazil. Also, it provides information on the incidence and seasonality of parasitoid species. Parasitism was registered only during the rainy season, where Telenomus podisi (Ashmead, 1893) parasitized Oebalus poecilus (Dallas, 1851), Tibraca limbativentris (Stal, 1860) and Euschistus heros (Fabricius, 1798) eggs. Additionally, Trissolcus urichi (Crawford, 1913) was collected from O. poecilus and T. limbativentris eggs. Ooencyrtus anasae (Ashmead, 1887) was found in O. poecilus eggs. Such findings provide information that can be used to supplement the management of... |
| Tipo: Artigo de periódico |
Palavras-chave: Controle biológico natural; Fatores climáticos; Oryza Sativa; Climatic factors. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1132830 |
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| MAIA, A. de H. N.. |
| Fenômenos climáticos de grande escala, como oscilações de temperatura no Pacífico Equatorial, mensuradas por indicadores do ENOS (El Niño-Oscilação Sul) influenciam padrões de precipitação ao redor do mundo, mesmo em locais muito distantes do centro de ocorrência do fenômeno. Essa influência pode se refletir na quantidade e na intensidade da chuva durante um determinado período, ou ainda na época de início e na duração da estação chuvosa. Foi abordada a utilidade de um modelo estatístico para a previsão probabilística sazonal (Modelo de Cox), com estudos de caso usando anomalias de temperatura do Pacífico Equatorial (região El Niño 3.4) como preditores de grande escala para os estados de Goiás e São Paulo. Foram utilizadas séries diárias de chuva das... |
| Tipo: Separatas |
Palavras-chave: Previsão do Tempo; Cerrado; Climatic factors. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1116377 |
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| Registros recuperados: 30 | |
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