Ecology, Environment and Conservation Paper

GENETIC VARIABILITY, CORRELATION AND PATH ANALYSIS STUDIES IN PEA (PISUM SATIVUM L.)

Meenakshi Ramgiry, B.K. Verma, A.K. Naidu and S.K. Sengupta

Abstract

Genetic variability, heritability, character associations and path analysis were carried out in twenty two genotypes of pea (Pisum sativum L.) at Vegetable Research Farm, Maharajpur, Jawaharlal Nehru Krishi Vishwa Vidyalaya, Jabalpur (M.P.), during 2013-14. High significant difference due to genotypes was observed for all the traits studied indicating sufficient genetic variability among the genotypes. The estimates of phenotypic coefficient of variation (PCV) was also higher than genotypic coefficient of variation (GCV) for all the traits. High PCV and GCV was observed for primary branches per plant at 30 DAS. High heritability coupled with high percentage of genetic advance was recorded for pod yield per plant. Pod yield per plant had significant and positive correlation with no. of pods per plant, plant height at 60 DAS and plant height at 30 DAS.Path coefficient analysis of different characters contributing towards pod yield per plant showed that number of pods per plant (0.927) had highest positive direct effect followed by pod weight (0.317), pod length (0.266) and fruiting span (0.216).Indicated these characters play a major role in pea breeding programme.