Variação genética para caracteres anatômicos e retração volumétrica e sua correlação com a densidade básica da madeira em uma população base de Eucalyptus camaldulensis Dehn
| Autor: | Santos, Fernando Wergles, De Moraes, Mario Luiz Teixeira [UNESP], Florsheim, Sandra Monteiro Borges, De Lima, Israel Luiz, Da Silva, Janete Motta [UNESP], Freitas, Miguel Luiz Menezes, Sebbenn, Alexandre Magno |
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| Přispěvatelé: | Universidade de São Paulo (USP), Universidade Estadual Paulista (Unesp), Instituto Florestal de São Paulo |
| Jazyk: | portugalština |
| Rok vydání: | 2010 |
| Předmět: |
Genetic gains
Progeny test Sequential selection Australia Phenotypic plasticity Genetic parameters Tree breeding Progeny tests Wood basic density Block designs Genetic control Heritability Present situation Genes Genetic gain Genetic engineering AS-soils Environmental conditions Eucalyptus camaldulensis Genetic variation Variability Shrinkage Volume shrinkage |
| Zdroj: | Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| ISSN: | 7795-5528 |
| Popis: | Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:24:42Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:35:49Z : No. of bitstreams: 1 2-s2.0-77955528827.pdf: 898888 bytes, checksum: 39dd812c48e4df0e3576da1fe9c846a0 (MD5) Made available in DSpace on 2014-05-27T11:24:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-06-01 Eucalyptus camaldulensis has great importance in Brazil because of their phenotypic plasticity for different environmental conditions, as soils, altitudes and rainfall. This study is an investigation of a base population of E. camaldulensis from Australia through a progeny test implanted in Selvíria, MS. The trial was established in a randomized block design, with 25 families and 60 replications of single tree plots. Genetic parameters for anatomic traits and volume shrinkage were estimated, as well as their correlations with wood basic density. No significant differences among progenies were observed for the traits studied. The additive genetic variation coefficient at individual and among progeny levels ranged from low (0.26%) to high (16.98%). The narrow sense heritability at individual and family means levels also ranged from low (0.01) to high (0.87). This indicates that some traits are under strong genetic control and can be improved by selection. In the present situation, in order to attain the highest genetic gains, the sequential selection among and within progeny would be recommended. Departamento de Ciências Florestais Escola Superior de Agricultura Luiz de Queiroz Universidade de São Paulo, Caixa Postal 09, Piracicaba, SP - 13418-900 Docente da Faculdade de Engenharia de Ilha Solteira Universidade Estadual Paulista, Rua Monção, 830, Ilha Solteira, SP - 15385-000 Instituto Florestal de São Paulo, Caixa Postal 1322, São Paulo, SP - 01059-970 Agronomia na Faculdade Universidade Estadua Paulista, Rua Monção, 830, Ilha Solteira, SP - 15385-000 Docente da Faculdade de Engenharia de Ilha Solteira Universidade Estadual Paulista, Rua Monção, 830, Ilha Solteira, SP - 15385-000 Agronomia na Faculdade Universidade Estadua Paulista, Rua Monção, 830, Ilha Solteira, SP - 15385-000 |
| Databáze: | OpenAIRE |
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