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Pakistan Journal of Biological Sciences
  Year: 2008 | Volume: 11 | Issue: 9 | Page No.: 1278-1281
DOI: 10.3923/pjbs.2008.1278.1281
 
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Estimation of Combining Ability for Yield and Yield Components in Rice(Oryza sativa L.) Cultivars Using Diallel Cross

L. Ahangar, G.A. Ranjbar and M. Nouroozi

Abstract:
In order to estimate combining ability and gene action of a number of rice cultivars, a 5x5 half a diallel cross genetic design has been used. Parents and their hybrids have been evaluated in a randomized complete block design with 3 replicates for yield and 6 yield components in 2007 in Rice Research Station of Iran -Amol. Mean squares of genotypes for all traits were highly significant (p<0.01). Significant mean squares of combining ability for all traits showed additive and non-additive effects in control of the related traits. Having nonsignificant ratio for all traits but 1000-grain weight show higher importance of nonadditive effects in comparison with additive effects of controlling genes. High relative importance of specific combining ability indicated that all traits but 1000-grain weight are highly affected by impacts of specific combining ability. Generally, Dasht, Neda and Binam were the best parents for general combining ability and BinamxIR62871-175-1-10 and Mashhad DomsiahxBinam were the best hybrids for grain yield and its components
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How to cite this article:

L. Ahangar, G.A. Ranjbar and M. Nouroozi, 2008. Estimation of Combining Ability for Yield and Yield Components in Rice(Oryza sativa L.) Cultivars Using Diallel Cross. Pakistan Journal of Biological Sciences, 11: 1278-1281.

DOI: 10.3923/pjbs.2008.1278.1281

URL: https://scialert.net/abstract/?doi=pjbs.2008.1278.1281

COMMENTS
28 January, 2019
IFTIKHAR ALI ODHANO:
This paper is valuable for me. I need more information on interpretation of combining ability.
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