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

Enter multiple e-mails separated by comma.

imagem

Author(s): DIAS, P. C.; XAVIER, A.; RESENDE, M. D. V. de; BARBOSA, M. H. P.; BIERNASKI, F. A.; ESTOPA, R. A.

Summary: 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.

Publication year: 2018

Types of publication: Journal article

Unit: Embrapa Forestry

Keywords: Clonal silviculture, Early selection, Espécie exótica, Forestry improvement, Genetic selection, Melhoramento Genético Vegetal, Pinus Taeda, Seleção Genética, Seleção precoce, Silvicultura clonal

Further information Download publication (PDF)

Observation

Some of Embrapa's publications are published as ePub files. To read them, use or download one of the following free software options to your computer or mobile device. Android: Google Play Books; IOS: iBooks; Windows and Linux: Calibre.

 

Access other publications

Access the Agricultural Research Database (BDPA) to consult Embrapa's full library collection and records.
Visit Embrapa Bookstore to purchase books and other publications sold by Embrapa.