Genetic Analysis for Green Pod Yield in Table Pea (Pisum sativum L. var. hortense)

Author: Pratyksh Pandey, K.P. Singh, Harshit Tripathi, H.C. Singh, Pawan Kumar Saini, Budhesh Pratap Singh, R.B. Singh and Arun Kumar Verma

Download PDF

Abstract

An experiment consisting 43 diverse genotypes of table pea including 10 lines, 3 testers and their F1s were evaluated during Rabi 2020-21 at Vegetable Research Farm, Kalyanpur of C. S. Azad University of Agriculture and Technology, Kanpur. Highly significant mean squares differences were observed due to lines, testers, F1s, line×tester and parents vs. F1s for green pod yield and its contributing characters i.e. days to 50% flowering, node number of first flower, inter-nodal length, number of primary branches, days to first picking of pods, average pod length, number of pods per plant, average pod weight, number of seeds per pod, plant height, seed shell per cent. The mean square due to GCA and SCA were also highly significant for all characters. The estimates of 𝜎2sca were higher than respective 𝜎2gca for all the characters except days to 50% flowering, node number of first flower, average pod length and plant height. All the characters showed higher magnitude of 𝜎2s than 𝜎2g on pooled basis also. Genotypes namely KS-701 (14.72), AP-5 (13.66) and GS-10 (2.29) were as good general combiners based on GCA effect and mean performance. The cross combination KS-702×GS-10was found best specific cross combination for maximum green pod yield per plant, followed by AP-1×AP-3 (24.67), KS-701×GS-10 (22.06) and AP-1×C-18-3 (19.37). The specific cross combinations namely; KS-602×C-18-3, KS-802×GS-10, KS-801×AP-3 and AP-4×C-18-3 were desirable for early flowering. KS-702, KS-221and KS-701 were the good general combiners for early flowering.

Keywords

Table pea, Pisum sativum, Line×Tester, hybrids, GCA and SCA

Conclusion

Form present investigation highly significant variances for both general and specific combining abilities were found for all the characters which indicated that both additive and non-additive gene effects are important. The values of GCA and SCA ratio estimates were observed less than unity for all the studied characters. The conclusion can be framed as information on GCA effects should be supplemented by SCA effects and performance of crosses to predict the transgressive segregants in segregating generations. Seed yield isa quantitative, complex character and due to predominance of non-additive gene action, it would be appreciable to resort to breeding methodologies, such as recurrent selection, biparental mating, and diallel selective mating than to use of backcross techniques or conventional pedigree method.

References

-

How to cite this article

Pratyksh Pandey, K.P. Singh, Harshit Tripathi, H.C. Singh, Pawan Kumar Saini, Budhesh Pratap Singh, R.B. Singh and Arun Kumar Verma (2023). Genetic Analysis for Green Pod Yield in Table Pea (Pisum sativum L. var. hortense). Biological Forum – An International Journal, 15(3): 754-758.