Data/hora: 02/06/2024 09:10:43

Provedor de dados: | 75
País: | Brazil
Título: | Agronomic potential and selection of okra hybrids to obtain potential genitors
Autores: | Maciel,Gabriel M; Finzi,Rafael R; Marra,Alexandre William C; Carvalho,Fábio J; Nogueira,Ana Paula O.
Data: | 2018-03-01
Ano: | 2018
Palavras-chave: | Abelmoschus esculentus; Genetic variability; Heterosis.
Resumo: | ABSTRACT Evaluation of pre-commercial hybrids in a germplasm bank is essential for determining its commercial potential or its utility as a potential genitor in a breeding program. The objective of this study was to determine genetic divergence and per se behavior of 47 pre-commercial hybrids from okra germplasm bank of the Universidade Federal de Uberlândia. Precocity index (%), number of fruits (fruits per plant), average fruit mass (g) and productivity (g per plant) were evaluated. Analysis of genetic divergence was performed by multivariate analysis using Mahalanobis distance with different clustering methods (UPGMA and canonical analysis). The performance of hybrids was compared by Scott-Knott (p= 0.05). A significant genetic variability among okra hybrids was observed. UPGMA and canonical analysis grouped the hybrids similarly, being satisfactory to represent genetic divergence. Ten hybrids presented higher performance than the commercial hybrids. Among them, UFU-QB16 stood out as the most promising hybrid for being used as a potential parent in breeding programs after auto pollination.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362018000100112
Editor: | Associação Brasileira de Horticultura
Relação: | 10.1590/s0102-053620180119
Formato: | text/html
Fonte: | Horticultura Brasileira  v.36 n.1 2018
Fonte: | info:eu-repo/semantics/openAccess