Título:	Critical periods of sorghum and palisadegrass in intercropped cultivation for climatic risk zoning.
Autoria:	LIMA, N. R. C. de B. SANTOS, P. M. MENDONCA, F. C. ARAÚJO, L. C. de
Afiliação:	NINO RODRIGO CABRAL DE BARROS LIMA, ESALQ/USP - PIRACICABA PATRICIA MENEZES SANTOS, CPPSE FERNANDO CAMPOS MENDONCA, CPPSE LEANDRO COELHO DE ARAÚJO, ESALQ-USP/PIRACICABA.
Ano de publicação:	2011
Referência:	Revista Brasileira de Zootecnia, v. 40, n. 7, p. 1452-1457, jul 2011.
Conteúdo:	The objective of this work was to define critical periods for sorghum and palisadegrass cultivated on crop-livestock integrated systems under water deficit. An experiment was carried out in a completely random block design with four treatments (control and interruption of water supply in three periods) and three replicates. Water supply was interrupted until soil water humidity was close to permanent wilting point at the phases: germination of palisadegrass seeds; start of tillering of palisadegrass and initiation of panicles of shorghum; start of shorghum flowering. Water deficit starting at palisadegrass germination delayed intital development of the plants because of the reduction in tillering. Water restriction at panicle initiation phase and at sorghum flowering determined reduction of grain production. Critical periods for intercrop of sorghum and palisadegrass correspond to palisadegrass germination phase and flowering and panicle inititation phase of sorghum.
Thesagro:	Brachiaria Brizantha
NAL Thesaurus:	Drought Abiotic stress
Palavras-chave:	Crop livestock integrated systems
Digital Object Identifier:	https://doi.org/10.1590/S1516-35982011000700008
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CPPSE)