Uncovering the Genetic Basis of Combining Ability in Capsicum annuum for Yield Attributing Traits

Author: Rushiraj D. Rathva, N.A. Patel, M.M. Pandya, Rutvik J. Joshi and A.L. Patel

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Abstract

The current experiment was designed to determine the value of heterosis for fruit yield and its component traits in chilli. The crossing block comprised of 7 lines and 6 testers and their 42 hybrids developed using line × tester mating design which were assessed in randomized block design having three replications. The experiment was conducted at Main Vegetable Research Station, Anand Agricultural University, Anand during kharif-rabi 2020-21. In genetic combining ability analysis gca effects disclosed that among the female parents, ACGMS 2 and ACGMS 3 and among the males, ACS 13 – 03 and ACS 13 – 24 were found to be good general combiners for green fruit yield per plant. Hybrids ACCMS 1 × GAVC 112, CCA 4759 × ACS 08 – 09 and ACGMS 1 × ACS 13 – 03 were considered as best specific cross combinations. Pre-dominance of non-additive nature of genes governing the various characters. This experiment helps to identify the genetic effects of a trait which directly applicable for the development of better hybrids with desirable traits.

Keywords

Combining ability, Capsaicinoids, Chilli, Gene action and Heterosis

Conclusion

The best per se performing five hybrids for green fruit yield per plant viz., ACCMS 1 × GAVC 112 (average × poor), ACGMS 3 × ACS 18 – 08 (good × average), ACGMS 3 × ACS 13 – 24 (good × good), ACGMS 2 × ACS 13 – 03 (good × good) and CCA 4759 × ACS 08 – 09 (poor × poor) also had significant positive sca effects except for ACGMS 3 × ACS 13 – 24 and high heterotic response over better parent and standard check hybrid. Hybrids with high yield not only demonstrated significant specific combining ability (SCA) effects and substantial heterosis but also exhibited impressive individual performance across most of the traits contributing to yield.

References

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How to cite this article

Rushiraj D. Rathva, N.A. Patel, M.M. Pandya, Rutvik J. Joshi and A.L. Patel (2023). Uncovering the Genetic Basis of Combining Ability in Capsicum annuum for Yield Attributing Traits. Biological Forum – An International Journal, 15(6): 187-191.