Estimativas de variâncias e herdabilidades de algumas características primárias e secundárias da produção de grãos em soja (Glycine max (L.) Merrill)
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Data
2002-08
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Resumo
The present work aimed to estimate the
variance components and the heritabilities of primary
and secondary traits in the production of grains, as well
as to verify the more promising population, in relation to
the possibility of gains, among the studied ones.
The experimental material consisted of three different
populations, which were conducted in " Bulk " until
generation F4. The generation in which the study was
accomplished (F5), was conducted on the scheme of
segregant lines inserted between the cultivars-pattern, in
the agricultural year 1996/97, in Viçosa - Minas Gerais
State. The results showed that under these work
conditions the variance component estimation method is
simple and easily performed, as well as it can be applied
on any generation proceeding from self-fertilization. In
relation to crossings, the one of higher genetic variation
was CR3 (‘CEPS 89-26’ x ‘FT – Cristalina’), showing
itself to be the most promising as to future gains by
selection, and the highest heritabilities were verified in
the secondary traits, and in general those associated to
the average of families showed to be of larger
magnitudes.
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Glycine max, Componentes de variância, Herdabilidade, Glycine max, Variance components, Heritability
Citação
REIS, Edésio Fialho dos et al. Estimativas de variâncias e herdabilidades de algumas características primárias e secundárias da produção de grãos em soja (Glycine max (L.) Merrill). Ciência e Agrotecnologia, Lavras, v. 26, n. 4, p. 749-761, jul./ago. 2002.