Genetic evaluation of Pinus taeda clones from somatic embryogenesis and their genotype x environment interaction
| Autor: | Fabrício Antonio Biernaski, Marcos Deon Vilela de Resende, Poliana Coqueiro Dias, Regiane Abjaud Estopa, Márcio Henrique Pereira Barbosa, Aloizio Xavier |
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| Rok vydání: | 2018 |
| Předmět: |
Early selection
040101 forestry Mixed model Somatic embryogenesis media_common.quotation_subject fungi Clonal silviculture Genetic selection 04 agricultural and veterinary sciences Heritability Biology Adaptability Forestry improvement Horticulture Genetic gain Genotype 040103 agronomy & agriculture 0401 agriculture forestry and fisheries General Earth and Planetary Sciences Gene–environment interaction Agronomy and Crop Science Selection (genetic algorithm) Biotechnology General Environmental Science media_common |
| Zdroj: | LOCUS Repositório Institucional da UFV Universidade Federal de Viçosa (UFV) instacron:UFV Crop Breeding and Applied Biotechnology, Volume: 18, Issue: 1, Pages: 55-64, Published: MAR 2018 Crop Breeding and Applied Biotechnology v.18 n.1 2018 Crop Breeding and Applied Biotechnology Sociedade Brasileira de Melhoramento de Plantas instacron:CBAB |
| ISSN: | 1984-7033 1518-7853 |
| DOI: | 10.1590/1984-70332018v18n1a8 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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