Combining Ability and Gene Action Studies for Yield and its Attributed Traits Over Different Environment in Brinjal (Solanum melongena L.)

Author: Hardik R. Patel, Akshay I. Patel, Harshita R. Patel, Rajesh J. Panchal and Rakesh S. Ganvit

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Abstract

The present investigation was carried out by using eight diverse parents for appraisal of combing ability in brinjal. Parents were crossed in half diallel fashion to obtain 28 hybrids. Combining ability is an assessment of genotypes on the basis of their offspring performance in some definite mating design. A parent that performs well by its own performance might not always result in better hybrids when combined with another parent. So, performing combining analysis is necessary to identification of better combination of parents. Analysis of variance for combining ability revealed highly significant differences for mean square of GCA and SCA for all studied characters except days to 50 % flowering indicating that both additive and non additive gene action were important for inheritance of these characters. The ratio of σ2gca/σ2sca was lower than unity for all the traits except days to 50 % flowering indicate the pre dominant role of non additive gene action. The GCA effect showed that the parents viz., NB-20-7 and GJB 3 observed as good general combiner for fruit yield per plant while for the SCA effect, hybrids viz., NB-20-3 × NB-20-8 at Navsari (L1), NB-20-3 × GJB 3 at Waghai (L2) and NB-20-4 × NB-20-9 at Bardoli (L3) act as good specific combiner for fruit yield per plant.

Keywords

Combing ability, GCA, SCA, Half diallel, Fruit yield

Conclusion

Studies on combining ability help to identify the best parents and provide genetic information on the inheritance pattern of characters. Parents viz., NB-20-7 and GJB 3 had good general combining ability for fruit yield per plant at all three locations. Among the hybrids, NB-20-3 × NB-20-8 at Navsari (L1), NB-20-3 × GJB 3 at Waghai (L2) and NB-20-4 × NB-20-9 at Bardoli (L3) had good specific combining ability. An analysis for the specific combining ability effect revealed that none of the hybrid was found positive and significant SCA effect for fruit yield per plant (kg) in all the three locations.

References

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How to cite this article

Hardik R. Patel, Akshay I. Patel, Harshita R. Patel, Rajesh J. Panchal and Rakesh S. Ganvit (2023). Combining Ability and Gene Action Studies for Yield and its Attribited Traits Over Different Environment in Brinjal (Solanum melongena L.). Biological Forum – An International Journal, 15(10): 1142-1151.