Data/hora: 10/06/2024 17:20:34

Provedor de dados: | Revista Brasileira de Zootecnia
País: | Brazil
Título: | Critical periods of sorghum and palisadegrass in intercropped cultivation for climatic risk zoning
Autores: | Lima,Nino Rodrigo Cabral de Barros; Santos,Patricia Menezes; Mendonça,Fernando Campos; Araujo,Leandro Coelho de.
Data: | 2011-07-01
Ano: | 2011
Palavras-chave: | Abiotic stress; Brachiaria brizantha; Crop-livestock integrated systems; Drought.
Resumo: | 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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000700008
Editor: | Sociedade Brasileira de Zootecnia
Relação: | 10.1590/S1516-35982011000700008
Formato: | text/html
Fonte: | Revista Brasileira de Zootecnia  v.40 n.7 2011
Fonte: | info:eu-repo/semantics/openAccess