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| Format: | Artículo científico |
| Sprache: | en |
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Universidade Federal de Viçosa
2016
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| Online-Zugang: | https://www.redalyc.org/articulo.oa?id=48846214008 |
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Inhaltsangabe:
- JUVENILE-MATURE GENETIC CORRELATIONS IN Pinus taeda CLONES PROPAGATED VIA SOMATIC EMBRYOGENESIS Poliana Coqueiro Dias Aloisi Xavier Marcos Deon Vilela de Resende Fabrício Antonio Biernaski Regiane Abjaud Estopa Ismael Eleotério Pires Agrociencias Clonal forestry Early selection Forest improvement This study aimed to estimate the genetic correlation among selection ages (juvenile - adult) and efficiency of early selection for the height, diameter, and volume traits of individuals from Pinus taeda families propagated via somatic embryogenesis. This study was carried out by genetic-statistical analysis, estimation procedure of variance (Reml), and prediction components of breeding values (Blup), using the Selegen-Reml/Blup software. Genetic correlations among juvenile ages and rotation age were performed by applying the linear model developed by Lambeth (1980). In accordance with results of the established model, the early selection can be performed in clones of Pinus taeda with high selection efficiency. Ages from 4 to 6 years old are enough to select Pinus taeda clones propagated via somatic embryogenesis for harvesting at 8 and 12 years old; and 6 to 10 years old are enough to select them for harvesting at 20 years old. On the basis of the genetic correlations estimates from the environments, the clones' selection of Pinus taeda propagated via somatic embryogenesis should be developed specifically for each environment. The clones' selection can be performed considering the diameter due to the high correlation between volume and diameter. 2016 artículo científico 0100-6762 https://www.redalyc.org/articulo.oa?id=48846214008 en http://www.redalyc.org/revista.oa?id=488 Revista Árvore application/pdf Universidade Federal de Viçosa Revista Árvore (Brasil) Num.2 Vol.40