Estimation of genetic variability, heritability and genetic advance for yield and its component traits of garden pea (Pisum sativum L.) in North East India

Abstract

30 genotypes of garden pea were evaluated at Vegetable Research Farm, CHF, CAU, Pasighat, East Siang, Arunachal Pradesh, for twenty two parameters through genetic variability, heritability and genetic advance for yield and yield attributing. Results revealed that, heritability exerts at high degree for all the plant characters studied viz. plant height, days to first flowering, days to first pod harvesting, ascorbic acid, protein content, pod weight, shelling percentage, internodal length, number of primary branches per plant, pod yield per plant, pod yield per hectare as well for other yield attributing characters. Plant height, internodal length and number of primary branches per plant showed highest genetic advance and lowest for days to first pod harvest. High heritability coupled with high genetic advance was observed for plant height, internodal length and number of primary branches per plant. 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 genotype on the basis of these characters will result in effective crop improvement for higher yield and yield attributing characters.