|
|
|
| Registros recuperados: 20 | |
|
|
| Souza,Wander de; Barbosa,Orlando Rus; Marques,Jair de Araújo; Gasparino,Eliane; Cecato,Ulysses; Barbero,Leandro Martins. |
| It was aimed to verify the effect of the presence of trees and their heights in silvipastoral system on the intake behavior of Nellore heifers in the summer. Ten heifers for the following systems were used: system without shade, silvipastoral system with 8-meter and 18-meter trees. The data were collected in three days during 12 hours, subdivided in morning (7:15 a.m. to 1. p.m.) and afternoon (1:15 p.m. to 7 p.m.). It was evaluated the times and frequency of grazing, rumination, idle and the percentage of time that the animals remained in the shade; black globe-humidity index, whose average and minimum values (86 and 82) were equal for 8-meter tree system and 18-meter tree system; however they were lower when compared to the without shade system (89 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ambience; Indle; Index; Rumination; Shade; Tree. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000300029 |
| |
|
|
| Alves-Lameira,Osmar; Santos-Ribeiro,Fernanda Naiara; Teixeira-Rocha,Tainá; Mesquita-Germano,Carolina; Alves de Assis,Rafael Marlon. |
| Abstract The leaf of the jaborandi (Pilocarpus microphyllus) is the part of the plant of economic interest, from which the pilocarpine is extracted, therefore, leaf production is the main variable that determines the productivity of this species. Pilocarpus leaf production can be managed during its development phase. Thus, the objective of the present study was to evaluate branch regeneration of jaborandi submitted to two types of cutting/pruning and different cropping systems. Prunings were carried out in jaborandi plants from different accessions from the Janorandi Active Germoplasm Bank (BGA), that were under different cropping systems, full sun and shade. With pruning shears, cuts were made 10 and 20 cm from the branch bifurcations. The results showed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Accessions; Full sun; Pilocarpus microphyllus; Pilocarpine; Shade. |
| Ano: 2021 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122021000300285 |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Mengarda,Liana H. G.; Souza,Rogério L. F. de; Campostrini,Eliemar; Reis,Fabrício O.; Vendrame,Wagner A.; Cuzzuol,Geraldo R. F.. |
| The ecophysiological behavior of brazilwood (Caesalpinia echinata Lam.) plants was evaluated as affected by light quantity and quality. Nine-month-old plants were cultivated under 0%, 50%, and 80% artificial shading, and natural shading imposed by a closed canopy for a period of 392 days. At the end of that period growth parameters were measured, including relative growth rate (RGR), net assimilation rate (NAR), leaf area ratio (LAR), specific leaf mass (SLM) and root:shoot ratio (R:S). Higher leaf area, dry mass and RGR were obtained under 50% artificial shade. Under full sunlight (0% shade), growth was satisfactory showing higher R:S and SLM. Growth was inhibited under 80% artificial and natural shading indicating that C. echinata is not... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chlorophyll fluorescence; Gas exchange; Growth; Light stress; Shade; Tropical tree. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202009000100007 |
| |
|
|
| KARVATTE JUNIOR, N.; ALVES, F. V.; KLOSOWSKI, E. S.; ALMEIDA, R. G. de; TSUTSUMI, C. Y.; OLIVEIRA, C. C.. |
| O objetivo deste trabalho foi avaliar índices de conforto térmico em sistemas de integração lavoura-pecuária-floresta, com eucalipto em arranjos de 14x2m (ILPF-1) e de 22x2m (ILPF-2) e árvores nativas dispersas com 5 árvores/ha-1 (ILPF-3), no Município de Campo Grande, Mato Grosso do Sul. O experimento foi conduzido na Embrapa Gado de Corte, em Campo Grande, MS, de julho a setembro de 2013. As avaliações foram realizadas mensalmente, em quatro dias consecutivos, em três horários (09h00, 12h00 e 15h00; GMT -04h00). Foram determinadas a temperatura do ar (°C), temperatura de globo negro (°C), temperatura de bulbo úmido (°C), umidade relativa do ar (%) e velocidade do vento (m s-1). Foram calculados o Índice de Temperatura e Umidade (ITU), Índice de... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Bem-estar animal; Estresse térmico; Sistemas de produção em integração; Integrated systems; THI; Animal welfare; Heat stress; Shade. |
| Ano: 2016 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1056742 |
| |
|
|
| Souza,Wander de; Barbosa,Orlando Rus; Marques,Jair de Araújo; Costa,Marco Aurélio Teixeira; Gasparino,Eliane; Limberger,Erni. |
| The aim of this work was to verify if the presence of trees and its height in formed silvipastoral systems with eucalyptus planted in rank can modify the microclimate and improve the environment for bovine raising during the day in summer. It was evaluated the microclimate of the environment in formed silvipastoral systems in rank of eucalyptus with 8 m, 18 m and 28 meters of height, compared to a system no shade in the summer. The experimental design was a split plot with six hour time in sub parcels. The systems are made up of parcels and the months as block in four replications and the interaction hour × system. The air temperature, black globe temperature, relative humidity and wind speed were observed to create the following indexes for thermal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ambient; Heat stress; Index; Shade; Thermal comfort; Trees. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000300030 |
| |
|
|
| Baliscei, Marcio Antonio; Instituto Paranaense de Assistência Técnica e Extensão Rural; Barbosa, Orlando Rus; Programa de Pós-Graduação em Zootecnia da Universidade Estadual de Maringá, Av. Colombo, 57020-900. Maringá Paraná Brasil; Souza, Wander de; Instituto Paranaense de Assistência Técnica e Extensão Rural; Costa, Marco Aurelio Teixeira; Universidade Estadual de Maringá; Krutzman, Alexandre; Universidade Estadual de Maringá; Queiroz, Edicarlos Oliveira; Universidade Estadual de Maringá,. |
| This study evaluated the microclimate in a system without shade (WS) and in a silvopastoral system (SP) with eucalyptus during summer and winter, by measuring the air temperature (Ta), black globe temperature (Tg), relative humidity (RH), wind speed (Ws), every 2 hours for 24 hours between rows, shade (SP) and no shade effect (WS). It was employed the randomized blocks design (months), in the plots (systems), subplots (hours) and sub-subplots (seasons). Except for Ta and RH, the Tg (24.73, 26.41ºC), Ws (3.16, 4.57 m s-1), Black globe-humidity index (BGHI) (71.83, 73.84), Thermal load index (TLI) (74.53, 76.11) and Radiant thermal load (RTL) (526.46, 595.80 W m-2), respectively for SP and WS, were higher in WS. Ta, RH and Ws had a quadratic effect of hour.... |
| Tipo: Pesquisqa de campo |
Palavras-chave: Thermal comfort; Seasons; Index; Silvopastoral; Shade thermal comfort; Seasons; Index; Silvopastoral; Shade. |
| Ano: 2013 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/15155 |
| |
|
|
| Morais,Heverly; Caramori,Paulo Henrique; Ribeiro,Ana Maria de Arruda; Gomes,José Carlos; Koguishi,Mirian Sei. |
| Recent studies on coffee (Coffea arabica L.) cultivation in agroforestry systems in Southern Brazil have shown the potential of partial shading to improve management of this crop. The objective of this work was to evaluate microclimatic conditions and their effects on coffee production of plants shaded with pigeon pea (Cajanus cajan) in comparison to unshaded ones, from May 2001 to August 2002 in Londrina, State of Paraná, Brazil. The appraised microclimatic characteristics were: global radiation, photosynthetic and radiation balance; air, leaf and soil temperatures; and soil humidity. Shading caused significant reduction in incident global solar radiation, photosynthetically active radiation and net radiation, and attenuated maximum leaf, air and soil... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea arabica; Cajanus cajan; Frost protection; Photosynthetically active radiation; Coffee production; Shade. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000500007 |
| |
|
| |
|
|
| Souza,Rogéria P.; Válio,Ivany F.M.. |
| Growth of seedlings of fifteen tropical tree species representative, at the adult stage, of different successional positions, was studied under field conditions. Seedlings were grown in three treatments: full sun (FS), artificial shade imposed by neutral screens (AS) and natural shade imposed by a closed canopy in a Forest Reserve in Southeast Brazil (NS). Most of the studied species survived in both shade treatments, although their growth was severely affected. Decreases in height, internode numbers, dry weight, leaf area, root:shoot ratio (R:S) and increases in leaf mass ratio (LMR), leaf area ratio (LAR) and specific leaf area (SLA) were common responses to shade. Relative growth rates (RGRs) and net assimilation rates (NARs) were consistently lower in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Seedling growth; Shade; Shade tolerance; Successional species; Tropical tree species. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-84042003000100005 |
| |
|
| |
|
|
| Bustos Mac-Lean, Priscilla Ayleen; UEM; Barbosa, Orlando Rus; UEM; Jobim, Clóves Cabreira; UEM; Gasparino, Eliane; UEM; Santos, Geraldo Tadeus dos; UEM; Faria, Leonardo Avanzzi Nunes; UEM. |
| Foram avaliados o comportamento, as variáveis fisiológicas e o desempenho de bezerros Holandês e mestiços desmamados em diferentes telas de polipropileno e horas de fornecimento de concentrado. Utilizaram-se 24 bezerros, nove da raça Holandesa (H) e 15 mestiços de Holandês (MH), em piquetes parcialmente cobertos com tela de polipropileno com malha de 70 (S70) e 40% (S40) de sombra, recebendo concentrado em três horários: manhã (M), tarde (T) e dias alternados (DA). Os comportamentos comendo e ruminando deitado foram, respectivamente, mais frequentes no ambiente S70 (34,29 e 11,40%) do que no ambiente S40 (30,18 e 6,76%), indicando maior conforto térmico. Os comportamentos ruminando em pé e em pé foram, respectivamente, mais frequentes no ambiente S40 (6,42... |
| Tipo: Pesquisa de campo |
Palavras-chave: 5.04.01.00-9 bovinos; Comportamento; Desempenho; Manejo alimentar; Sombra breeds; Behavior; Performance; Alimentary handling; Shade. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10672 |
| |
|
|
| NOGUEIRA, S. R.; ANDRADE NETO, R. de C.; LUNZ, A. M. P.. |
| O açaí-solteiro (Euterpe precatoria Mart.) é uma palmeira nativa do Estado do Acre, sendo a produção de polpa oriunda do extrativismo. A procura pelo produto é grande e crescente no Brasil e no mundo, estimulando plantios comerciais. No entanto, poucas são as informações sobre a produção de mudas em viveiros e cultivo dessa espécie. Muitas técnicas usadas no seu cultivo, provenientes de recomendações para o açaí-de-touceira (E. oleracea), nem sempre são as mais adequadas, a exemplo do melhor nível de sombreamento para produção de mudas. Principalmente no viveiro o açaí-solteiro é bastante atacado pela antracnose, doença fúngica, causada por Colletrotrichum gloesporiodes, que ocasiona manchas e seca das folhas, levando a altas taxas de mortalidade das... |
| Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E) |
Palavras-chave: Açaí solteiro; Cultivos de viveros; Antracnosis; Colletotrichum sp; Sombra.; Producción de plántulas; Factores de crecimiento; Enfermedades y desórdenes de las plantas; Açaí; Muda; Produção; Viveiro; Sombreamento; Fator de crescimento; Controle ambiental; Doença de planta; Fungo; Antracnose.; Euterpe precatoria; Seedling production; Nursery crops; Shade; Growth factors; Plant diseases and disorders; Fungi; Anthracnose.. |
| Ano: 2010 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/661589 |
| |
|
|
| Carnevalli,Roberta Aparecida; Mello,Andrea Cristina Tavares de; Shozo,Luciano; Crestani,Steben; Coletti,Admar Junior; Eckstein,Camila. |
| ABSTRACT: Ruminants vary their walking trajectory according to the positioning of the trees in integrated systems, which can determine the concentration of dung deposition at certain locations. The aim of this study was to map the distribution of feces and the behavior of dairy heifers in sunny and shaded areas. This experiment was carried out in Mato Grosso, Brazil, where the main grazing conditioner is shade due to the presence of trees in the pastures. Shading levels used were: full sunlight (control), moderate shade (338 trees ha−1) and intensive shade (714 trees ha−1) in randomized complete blocks. The experimental period was divided into three evaluation periods based on rainfall distribution: rainy period = December 2012; transition period = March... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pasture litter; Feces patches; Shade; Heifers. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782019001000651 |
| |
|
| |
| Registros recuperados: 20 | |
|
|
|
