Study of Genetic variability in Pea (Pisum sativum L.) during rabi Season at Mid Hills of Himachal Pradesh

Author: Priyam Thakur, Ritika Singh, Alok Kumar, Anupam Kumar and Shivani Kaundal

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Abstract

A field experiment was conducted on thirty genotypes including two checks were grown in a RBD with three replication during rabi 2022 at Research Farm School of Agriculture, Abhilashi University Chailchowk Mandi, Himachal Pradesh to estimate the parameters of variability and association of important characters with yield in pea. Analysis of variance showed significant differences among the genotypes for all the characters under study. The phenotypic coefficient of variation (PCV) was higher than corresponding genotypic coefficient of variation (GCV). The PCV and GCV both were observed high for number of pods per node, number of seed per pod, seed yield and harvest index. High heritability coupled with high genetic advance in percent of mean were recorded for secondary branches per plant, pod length, number of seed per pod and seed yield which indicated the presence of both additive and non additive gene action thus providing scope for improvement of these characters, through hybridization and selection. Therefore, from the above obtained results it can be concluded that the characters studied are governed by additive gene effect. Hence adoption for selection of elite genotypes on the basis of these characters will result in effective crop improvement for higher yield and yield attributing characters.

Keywords

Variability, ANOVA, Mean, PCV, GCV

Conclusion

In conclusion, analysis of variance revealed significant mean sum of square due to genotypes for all traits under study. The genotypes Palam matar-1, Punjab-89, IC-269558, IC-204123, IC-208933, IC-208667, IC-109303 and IC-109553 exhibited high mean performance for different characters i.e. days to 50 per cent flowering, days to pod harvesting stage, days to 75 per cent maturity, pod length, number of pod per plant, plant height, number of primary branches per plant, number of secondary branches per plant, number of pods per nodes, 100 seed weight, pod length, number of seed per pod, dry matter yield, seed yield and harvest index were found to be superior for mean performance. The PCV and GCV both were observed high for number of pods per node, number of seed per pod, seed yield and harvest index. Thus these characters provide good source of variation and hence they are useful in crop improvement. High heritability were recorded for plant height, number of primary branches per plant, number of secondary branches per plant, number of pods per node, pod length, number of seed per pod, dry matter yield, seed yield and harvest index. High genetic advance as per cent mean were recorded for plant height, number of primary branches per plant, number of secondary branches per plant, number of pods per node, pod length, number of pod per plant, number of seed per pod, dry matter yield, seed yield and harvest index. On the basis of overall finding of the present study, out of twenty eight genotypes, seven genotypes viz, IC-269558, IC-204123, IC-208933, IC-208667, IC-109303, IC-109553, IC-208667were found to be superior for yield characters. Further, these germplasm accessions could be utilized in the breeding programme to develop high yielding genotypes.

References

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How to cite this article

Priyam Thakur, Ritika Singh, Alok Kumar, Anupam Kumar and Shivani Kaundal (2023). Study of Genetic variability in Pea (Pisum sativum L.) during rabi Season at Mid Hills of Himachal Pradesh. Biological Forum – An International Journal, 15(10): 462-467.