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Análise da capacidade combinatória em berinjela Combining ability analysis in eggplant

By DERLY JOSÉ HENRIQUES DA SILVA, CYRO PAULINO DA COSTA, VICENTE WAGNER DIAS CASALI, LUÍZ ANTÔNIO DOS SANTOS DIAS and COSME DAMIÃO CRUZ

Abstract

Cinco acessos de berinjela (Solanum melongena L.) - 1: PI 206472; 2: 'Long green'; 3: 'Campineira'; 4: 'Flórida Market' e 5: 'E-22' - e os seguintes híbridos entre eles, 1 x 3; 1 x 4; 2 x 4; 2 x 5 e 3 x 5 de frutos comerciais, foram avaliados quanto ao comprimento médio, ao diâmetro médio, ao peso médio, ao número médio por planta e à produção de frutos. As médias dos híbridos 1 x 2, 1 x 5, 2 x 3, 3 x 4 e 4 x 5 foram preditas, com base no método para dialelo circulante. O objetivo deste estudo foi identificar acessos e híbridos de berinjela promissores para programas de melhoramento. A análise dialélica demonstrou a predominância dos efeitos gênicos aditivos para todos os caracteres analisados. Com base nas estimativas de capacidade geral de combinação, os acessos PI 206472 e 'Campineira' foram indicados para programas de melhoramento intrapopulacional. Entre os híbridos analisados e preditos 1 x 3, 1 x 4, 1 x 5, e 3 x 5 apresentaram potencial para exploração comercial.<br>A total of five eggplant accessions 1: PI 206472, 2: 'Long green', 3: 'Campineira', 4: 'Flórida Market' and 5: 'E-22' - and the hybrids 1 x 3; 1 x 4; 2 x 4; 2 x 5 and 3 x 5, were evaluated with regard to the average of length, diameter, and weight of commercial fruits, and average of number of fruits per plant and fruit yield. The average of hybrids 1 x 2, 1 x 5, 2 x 3, 3 x 4, and 4 x 5 were predicted, based on partial diallel cross methodology. The objective of this study was to identify both favorable accessions and hybrids for breeding programs. The additive genetic effects were shown to be the most important for all traits analyzed. Accessions PI 206472 and 'Campineira' were indicated for intrapopulational breeding programs based on general combining ability. Among the analyzed and predicted hybrids 1 x 3, 1 x 4, 1 x 5, and 3 x 5 presented potential for commercial exploitation

Topics: Solanum melongena L., berinjela, análise dialélica, capacidade combinatória, heterose, Solanum melongena L., eggplant, dialelic analysis, combining ability, heterosis, Agriculture (General), S1-972, Agriculture, S, DOAJ:Agriculture (General), DOAJ:Agriculture and Food Sciences, Geology, QE1-996.5, Science, Q, DOAJ:Earth Sciences, DOAJ:Earth and Environmental Sciences
Publisher: Instituto Agronômico de Campinas
Year: 1999
DOI identifier: 10.1590/S0006-87051999000100002
OAI identifier: oai:doaj.org/article:45ce3ad8d7d74324b0fafc6d977b8dfb
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