Data/hora: 12/06/2024 06:30:39

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Microclimatic characterization and productivity of coffee plants grown under shade of pigeon pea in Southern Brazil	
Autores: 	Morais,Heverly; Caramori,Paulo Henrique; Ribeiro,Ana Maria de Arruda; Gomes,José Carlos; Koguishi,Mirian Sei.	
Data: 	2006-05-01	
Ano: 	2006	
Palavras-chave: 	Coffea arabica; Cajanus cajan; Frost protection; Photosynthetically active radiation; Coffee production; Shade.	
Resumo: 	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 temperatures, during the day. Shade also reduced the rate of cooling of night air and leaf temperatures, especially during nights with radiative frost. Soil moisture at 0-10 cm depth was higher under shade. The shaded coffee plants produced larger cherries due to slower maturation, resulting in larger bean size. Nevertheless, plants under shade emitted less plagiotropic branches, with smaller number of nodes per branch, and fewer nodes with fruits, resulting in a large reduction in coffee production. These results show the need to find an optimal tree density and management that do not compromise coffee production and protect against extreme temperatures.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2006000500007	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2006000500007	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.41 n.5 2006	
Fonte: 	info:eu-repo/semantics/openAccess