Data/hora: 02/06/2024 06:29:53

Provedor de dados: | 52
País: | Brazil
Título: | Heterosis in soybeans for seed yield components and associated traits
Autores: | Pandini,Fábio; Vello,Natal Antonio; Lopes,Ângela Celis de Almeida.
Data: | 2002-12-01
Ano: | 2002
Palavras-chave: | Breeding; Indirect selection; Correlations among traits; Path analysis; Glycine max.
Resumo: | The objective of this research was to quantify heterosis of agronomic traits and evaluate direct and indirect correlations among seed yield and other traits. A diallel involving six parents was grown in two localities. Seed yield (PG), one-hundred seed weight (PCS), number of pods per plant (NV), weight of aerial part of the plant (PPA), harvest index (IC) and number of seeds per pod (NGV) were evaluated. Positive values of heterosis were detected for all traits. Estimates of heterosis components were significative for most traits, showing effects of aditivity and dominance. The specific heterosis was more important than the variety heterosis, mainly in the locality Anhembi. MTBR-95-123800 presented the best potential per se and as parent in crosses, but it was excelled by some of the hybrids in the two localities. Number of pods per plant demonstrated to be suitable for indirect selection for PG.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000600001
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132002000600001
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.45 n.4 2002
Fonte: | info:eu-repo/semantics/openAccess