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- Title
Diallel analysis of maize inbred lines for grain yield, oil and protein content.
- Authors
Klein Werle, Amir José; Alves Ferreira, Fernando Rafael; Barth Pinto, Ronald José; Mangolin, Claudete Aparecida; Scapim, Carlos Alberto; Azeredo Gonçalves, Leandro SimÕes
- Abstract
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 influence on the hybrid combinations. The cross L6 x L10 was considered promising, because it associated RG positively with BP and OC.
- Subjects
CORN breeding; CORN yields; CORN proteins; CORN genetics; COMPOSITION of corn; ADDITIVES
- Publication
Crop Breeding & Applied Biotechnology, 2014, Vol 14, Issue 1, p23
- ISSN
1518-7853
- Publication type
Article
- DOI
10.1590/s1984-70332014000100004