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Provedor de dados:  Agronomy
País:  Brazil
Título:  Parental selection for the formation of interspecific hybrid populations of oil palm
Autores:  Peixoto, Leonardo de Azevedo
Bhering, Leonardo Lopes
Gurgel, Fábio de Lima
Gomes Junior, Rui Alberto
Data:  2015-05-04
Ano:  2015
Palavras-chave:  Ciências Agrárias e genética e melhoramento de plantas Elaeis guineensis
Cluster analysis
Genetic diversity Melhoramento
Resumo:  The objective of this work was to select families with superior performance and large genetic variability for diallel crosses for potential use in the pre-breeding of oil palm. The experiment consisted of 42 full-sib families divided into three trials with 16 families and 3 witnesses in common in randomized blocks, with four blocks and 12 plants per block. The characteristics evaluated in the experiment were number of bunches per plant (NBP), bunch weight per plant (BWP) and bunch average weight per plant (BAW). The estimation of variance components showed that there was greater genetic variance within families than between families. The heritability for all traits was high, above 0.75, and the coefficient of environmental variation was low to moderate for all traits (between 4 and 13). Tocher’s method separated families into seven groups, whereas the UPGMA method identified six groups. To use the best families in diallel crosses, families 15, 14, 22, 21, 28, 37, 33 and 39 were selected based on individual performance as determined by the Scott-Knott test and genetic diversity by grouping. 
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Identificador:  http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19145

10.4025/actasciagron.v37i2.19145
Editor:  Universidade Estadual de Maringá
Relação:  http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/19145/pdf_64
Formato:  application/pdf
Fonte:  Acta Scientiarum. Agronomy; v. 37, n. 2 (2015); 155-161

Acta Scientiarum. Agronomy; v. 37, n. 2 (2015); 155-161

1807-8621

1679-9275
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