Diversidade genética e eficiência da predição do comportamento de híbridos de pimentão (Capsicum annuum L.)

Valter Rodrigues Oliveira; Carlos Alberto Scapim; Vicente Wagner Dias Casali

doi:10.4025/actasciagron.v20i0.4354

Genetic diversity and efficiency in predicting sweet pepper (Capsicum annuum L.) hybrids behavior

Valter Rodrigues Oliveira UEM
Carlos Alberto Scapim UEM
Vicente Wagner Dias Casali UFV

DOI: https://doi.org/10.4025/actasciagron.v20i0.4354

Abstract

The genetic diversity among six sweet pepper lines in relation to eight growth and nutritional traits was evaluated by multivariate analysis techniques (Mahalanobis’ D²_ii' distances, Tocher’s grouping analysis and dispersion graphic analysis). Based on the D²_ii' distances estimated, the relation between predicted genetic dissimilarity and the hybrid total dry matter mean, heterosis and specific combining ability in the F1 hybrids, was also evaluated by Pearson’s and Spearman’s correlation coefficients. There was a wide genetic variability, evidencing the lines P-141-152-F14, P-142-403-F11 and P-141-190-F16 by dissimilarity between themselves and in relation to the group. Positive (>0,50) and significant correlation coefficients (P < 0,05) were detected between D²_ii' and heterosis and specific combining ability, indicating that the genetic distance, estimated by multivariate procedure, is a highly efficient methodology for choosing promising combinations in breeding programs.

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Author Biography

Carlos Alberto Scapim, UEM

Possui graduação em Agronomia pela Universidade Federal de Viçosa (1991), mestrado em Genética e Melhoramento de Plantas pela Universidade Federal de Viçosa (1993) e doutorado em Genética e Melhoramento de Plantas pela Universidade Federal de Viçosa (1996). Atualmente é professor associado B da Universidade Estadual de Maringá. Tem experiência na área de Agronomia, com ênfase em Melhoramento Vegetal, atuando principalmente nos seguintes temas: melhoramento genético de milhos especiais (milho-pipoca, milho-doce e minimilho). Junto com outros pesquisadores coordena um projeto PRONEX nessa linha. Trabalha com professores da Universidade Norte Fluminense e de Viçosa em uma rede de ensaio nacional para avaliar híbridos e variedades de milho-pipoca. É bolsista de produtividade em pesquisa do CNPq desde 1999. Currículo Lattes

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Published

2008-07-14

How to Cite

Oliveira, V. R., Scapim, C. A., & Casali, V. W. D. (2008). Genetic diversity and efficiency in predicting sweet pepper (Capsicum annuum L.) hybrids behavior. Acta Scientiarum. Agronomy, 20, 263-267. https://doi.org/10.4025/actasciagron.v20i0.4354

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Issue

Vol 20 (1998)

Section

Agronomy

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