Genetics and expected selection gain for growth traits in Eugenia dysenterica DC. populations
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Data
2009
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Resumo
The objective of this study was to estimate genetic parameters of quantitative traits in a living
germplasm collection of Eugenia dysenterica. The genetic material consisted of 110 progenies derived
from 10 natural Eugenia dysenterica subpopulations sampled in the southeastern region of the state of
Goiás. The experiment was established in a complete randomized block design, with 110 treatments,
four replications and one tree per plot. The study variables were total height, stem diameter and respective
growth rates. After the analysis of variance some genetic parameters were estimated. The levels of genetic
variation in the collection were high and the highest proportion was found within subpopulations. Highest
coefficients of heritability and genetic variation were observed in subpopulations from the counties
Catalão, Três Ranchos, Cristalina and Senador Canedo. Considering the promising expected progress
for growth traits, this collection can be converted into an unrogued seedling seed orchard, aiming the
production of improved seed.
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Palavras-chave
Eugenia dysenterica, Cagaiteira, Pre-breeding or screening, Heritability, Genetic conservation, Cerrado, Genetic parameters, Pré-melhoramento, Conservação genética, Herdabilidade, Parâmetros genéticos
Citação
AGUIAR, Ananda Virginia de et al. Genetics and expected selection gain for growth traits in Eugenia dysenterica DC. populations. Bragantia, Campinas, v. 68, n. 3, p. 629-637, Sept. 2009.