Literature DB >> 21732281

Correspondence between performance of Eucalyptus spp trees selected from family and clonal tests.

C A F Reis1, F M A Gonçalves, L N Rosse, R R G F Costa, M A P Ramalho.   

Abstract

We examined the correspondence in performance between trees selected from a family test and their respective clones from a clonal test of Eucalyptus. Full-sib families were obtained from controlled pollination among individuals of Eucalyptus grandis and between E. grandis and E. urophylla. The hybridizations did not follow a factorial scheme. The family tests were carried out at three locations in Eunápolis and Itabela counties, in Bahia, Brazil, in 2003. Four hundred and ninety-seven high-performance trees were selected, by the individual BLUP procedure, in the family tests at two years of age, based on wood volume. The clones from these trees and 14 checks were evaluated in clonal tests carried out in the same region in 2006. The wood volume of the clones was evaluated at two years of age. Trait correlation between the trees selected from the family and clonal tests was low. The estimate of the coincidence between the best trees and the best clones using an average of the different intensities of selection was only 27%. These results demonstrate that the selection of trees in the family test should not be too drastic; otherwise the chance plus clones may be overlooked.

Entities:  

Mesh:

Year:  2011        PMID: 21732281     DOI: 10.4238/vol10-2gmr1078

Source DB:  PubMed          Journal:  Genet Mol Res        ISSN: 1676-5680


  1 in total

1.  Assessing the expected response to genomic selection of individuals and families in Eucalyptus breeding with an additive-dominant model.

Authors:  R T Resende; M D V Resende; F F Silva; C F Azevedo; E K Takahashi; O B Silva-Junior; D Grattapaglia
Journal:  Heredity (Edinb)       Date:  2017-07-05       Impact factor: 3.821

  1 in total

北京卡尤迪生物科技股份有限公司 © 2022-2023.