Genetic variability, heritability and genetic advance studies in commercial varieties of garden pea (Pisum sativum var. hortense L.) grown under mid-hill condition of Himachal Pradesh

Author: Lekh Raj, Sandeep Kumar, Ritika Singh, Deependra Yadav and Ravinder

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Abstract

A field experiment was conducted on ten varieties of garden pea to determine genetic variability, heritability, and genetic advance as a percent of mean using fourteen quantitative characters. viz., count emergence of seed per plot, days to 50% flowering, days to first picking, number of flowers per plant, pod length, seeds per pod, shelling percentage, number of pickings, plant height (cm), pod setting (%), pod yield per plant (g), Pod yield per plot (kg) and pod yield per ha (q). The result of ANOVA showed significant differences among the varieties. In comparison to the corresponding genotypic coefficient of variation (GCV), the phenotypic coefficient of variation (PCV) was quite higher. High value of GCV and PCV was recorded for count plant emergence per plot (%), number of pods per plant, number of flowers per plant, pod yield per plant (g), pod yield per ha (q) and pod yield per plot (kg). All the characters except days to first picking and pod setting showed a high magnitude of heritability in the broad sense (>60%) ranging from 98.48 (count plant emergence) to 74.11 (number of pickings). Further, high heritability coupled with high genetic advance as percentage of mean (>20%) was observed for count plant emergence per plot (%), number of pods per plant, number of flowers per plant, number of pickings, pod yield per plant (g), pod yield per ha (q) and pod yield per plot (kg) suggesting that these garden pea characters are genetically controlled by additive (heritable) gene action and can be utilized for garden pea improvement through selection. The varieties that showed superior results for the objectives under study were Goldie, New- Zealand, Azad P-3 and Maxima-3636 and can be exploited for further breeding programmes of garden pea.

Keywords

GCV, Heritability, PCV, Pod yield, Variability

Conclusion

The current study founded substantial variation among all varieties, with significant differences in all studied characters. The traits that exhibited high values for GCV, heritability, and genetic advance as a percentage of the mean were count of plant emergence per plot (%), number of pods per plant, number of flowers per plant, pod yield per plant (g), plot (kg), and hectare (q). Therefore, when selecting for higher yield in garden peas, it is important to consider these characteristics. The largely capable varieties that showed high values for these characteristics during the study were Goldie, New-Zealand, and Maxima-3636. These better-quality varieties can be selected and used to develop higher-yielding crops.

References

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How to cite this article

Lekh Raj, Sandeep Kumar, Ritika Singh, Deependra Yadav and Ravinder (2023). Genetic variability, heritability and genetic advance studies in commercial varieties of garden pea (Pisum sativum var. hortense L.) grown under mid-hill condition of Himachal Pradesh. Biological Forum – An International Journal, 15(8a): 267-272.