Genetic evaluation of Pinus taeda clones from somatic embryogenesis and their genotype x environment interaction.

The objective of this study was to evaluate the genotype x environment interaction and to estimate the genetic components of variance and mean using mixed models in early selection of 238 clones of Pinus taeda propagated by somatic embryogenesis. The experiment consisted of a complete blocks design, with 12 replications, with one plant per plot, in four environments, at 1, 3, and 4 years of age. Estimates of heritability and of genetic gains in the evaluated environments showed good prospects for selection of superior genotypes. The effect of genotype x environment interaction was pronounced for all traits investigated. With the simultaneous selection for stability and adaptability, 10% genetic gain was obtained in relation to the mean of the commercial controls. This estimated gain indicates that the somatic embryogenesis technique has been effective in propagation of clones with good productive potential.

Bibliographic Details

Main Authors:	DIAS, P. C., XAVIER, A., RESENDE, M. D. V. de, BARBOSA, M. H. P., BIERNASKI, F. A., ESTOPA, R. A.
Other Authors:	Poliana Coqueiro Dias, Universidade Federal Rural do Semiárido; Aloizio Xavier, UFV; MARCOS DEON VILELA DE RESENDE, CNPF; Márcio Henrique Pereira Barbosa, UFV; Fabrício Antonio Biernaski, Klabin do Paraná Produtos Florestais; Regiane Abjaud Estopa, Klabin do Paraná Produtos Florestais.
Format:	Artigo de periódico biblioteca
Language:	English eng
Published:	2018-11-23
Subjects:	Silvicultura clonal, Seleção precoce, Espécie exótica, Clonal silviculture, Forestry improvement, Genetic selection, Pinus Taeda, Melhoramento Genético Vegetal, Seleção Genética, Early selection,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1099929
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