Correlation and path analysis for dry root yield in Ashwagandha [Withania somnifera (L.) Dunal]

Abstract

Correlation and path-coefficient analysis were carried out for twelve different quantitative traits in a population of forty six genotypes of ashwagandha(W. somnifera). The analysis revealed strong positive association of dry root yield per plant with root diameter, root length, plant height, root branches and days to maturity. The plant height and root branches per plant had positive direct effect on dry root yield per plant. Hence, plant height and root branches per plant may be good for improvingdry root yield per plantthrough selection in ashwagandha.