Data/hora: 06/06/2024 02:57:33

Provedor de dados: 	96	
País: 	Brazil	
Título: 	Agronomic evaluation of 32 sorghum cultivars in the Brazilian semi-arid region	
Autores: 	Perazzo,Alexandre Fernandes; Carvalho,Gleidson Giordano Pinto de; Santos,Edson Mauro; Pinho,Ricardo Martins Araujo; Campos,Fleming Sena; Macedo,Carlos Henrique Oliveira; Azevêdo,José Augusto Gomes; Tabosa,José Nildo.	
Data: 	2014-05-01	
Ano: 	2014	
Palavras-chave: 	Dry matter; Forage; Panicle; Plant height.	
Resumo: 	The objective of this study was to evaluate agronomic characteristics of 32 sorghum cultivars (Sorghum bicolor(L). Moench) in the Brazilian semi-arid region. The experimental design was set up in randomized blocks with three replications. Treatments were the 32 sorghum cultivars. The evaluated variables were: plant height, stem diameter, tiller density, number of green leaves per tiller, average leaf length, dry matter content, fresh matter production and dry matter production (DMP) in kg/ha, and the percentage of the components panicle, leaf blade and stem. To avoid associative effects due to the presence of positive correlation with DMP, the variables plant height, number of plants per hectare and fresh matter production were excluded for being part of the discriminatory variables of the cluster. Based on the cluster analysis and subjective cutting in 20% dissimilarity, five groups were hierarchically set up. It was not possible to find groups with higher values of panicle and DMP simultaneously; however, group number 5 met significant values for both variables, with mean values of 15,037.63 kg/ha of DMP and 11.36% of panicle, besides 13.65% of leaf. Groups 3, 4 and 5 show high potential for dry matter production, especially group 5. The presence of evident variation among cultivars allows for a selection of more productive and, thus, more suitable cultivars for silage production in semi-arid regions.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000500232	
Editor: 	Sociedade Brasileira de Zootecnia	
Relação: 	10.1590/S1516-35982014000500002	
Formato: 	text/html	
Fonte: 	Revista Brasileira de Zootecnia  v.43 n.5 2014	
Fonte: 	info:eu-repo/semantics/openAccess