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|Population parameters and selection of kale genotypes using Bayesian inference in a multi-trait linear model
|Parâmetros populacionais e seleção de genótipos de couve por inferência bayesiana em modelo linear multicaracterístico
|Brassica oleracea L. var. acephala DC.
|Editora da Universidade Estadual de Maringá (Eduem)
|AZEVEDO, A. M. et al. Population parameters and selection of kale genotypes using Bayesian inference in a multi-trait linear model. Acta Scientiarum. Agronomy, Maringá, v. 39, n. 1, p. 25-31, Jan./Mar. 2017. DOI: 10.4025/actasciagron.v39i1.30856.
|Variance components must be obtained to estimate genetic parameters and predict breeding values. This information can be obtained through Bayesian inference. When multiple traits are evaluated, Bayesian inference can be used in multi-trait models. The objective of this study was to obtain estimates of genetic parameters, gains with selection, and genetic correlations among traits. Likewise, we aim to predict the genetic values and select the best kale genotypes using the Bayesian approach in a multi-trait linear model. The following traits were evaluated: stem diameter, plant height, number of shoots, number of marketable leaves and fresh weight of leaves using Bayesian inference in 22 kale genotypes. The experiment consisted of a randomized block design with three replications and four plants per plot. Genetic effects predominated over environmental effects. The highest correlation estimates were found between the fresh weight of leaves and stem diameter and between the plant height and number of marketable leaves. The following commercial cultivars and genotypes are recommended for cultivation and to integrate into breeding programs: UFLA 11, UFLA 5, UFLA 6, UFVJM 3 and UFVJM 19. The estimates of the gain with selection indicate the potential for improvement of the studied population.
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