Data/hora: 12/06/2024 10:38:57

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Genetic gains in physic nut using selection indexes	
Autores: 	Bhering,Leonardo Lopes; Laviola,Bruno Galvêas; Salgado,Caio Césio; Sanchez,Carlos Felipe Barrera; Rosado,Tatiana Barbosa; Alves,Alexandre Alonso.	
Data: 	2012-03-01	
Ano: 	2012	
Palavras-chave: 	Jatropha curcas; Biodiesel; Canopy volume; Cerrado; Juvenility; Seed size.	
Resumo: 	The objective of this work was to estimate genetic gains in physic nut (Jatropha curcas) using selection indexes and to establish the best selection strategy for the species. Direct and indirect selection was carried out using different selection indexes, totalizing 14 strategies. One hundred and seventy five families from the active germplasm bank of Embrapa Agroenergy, Brasília, Brazil, were analyzed in a randomized complete block design with two replicates. The evaluated traits were: grain yield; seeds per fruit; endosperm/seed ratio; seed weight, length, width, and thickness; branches per plant at 0.5, 1.0, and 1.5 m; plant height; stem diameter; canopy projection on rows and between lines; canopy volume; juvenility (days to the first flowering); and height of the first inflorescence. Evaluations were done during the second year of cultivation. The use of selection indexes is relevant to maximize the genetic gains in physic nut, favoring a better distribution of desirable traits. The multiplicative and restrictive indexes are considered the most promising for selection.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2012000300012	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2012000300012	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.47 n.3 2012	
Fonte: 	info:eu-repo/semantics/openAccess