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Diallel analysis of maize inbred lines for grain yield, oil and protein content
Tekijä: Amir José Klein Werle, Fernando Rafael Alves Ferreira, Ronald José Barth Pinto, Claudete Aparecida Mangolin, Carlos Alberto Scapim, Leandro Simões Azeredo Gonçalves
Aineistotyyppi: | Article |
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Julkaistu: | Brazilian Society of Plant Breeding 2014-03-01 |
Kuvaus
This study aimed to investigate the combining ability and heterotic effects on grain yield (GY), oil content (OC) and crude protein (CP) in tropical and temperate maize lines. Hybrids and inbred lines were evaluated in a complete diallel scheme without reciprocals, in two experiments in randomized blocks with three replications. The partitioning of the sum of squares for general (GCA) and specific (SCA) combining ability indicated that both additive and non-additive effects were involved in the genetic control of the studied traits. The estimates of the quadratic components showed predominance of non-additive genetic effects in the trait control. However, for OC and CP, the non-additive effect had a clearly negative influenc