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Vol. 10, Issue 8 (2021)

Genetic variability studies in ashwagandha (Withania somnifera L.) for yield and quality traits

Author(s):
S Venugopal, M Padma, M Rajkumar, N Seenivasan, P Saidaiah and G Sathish
Abstract:
The experiment was laid out in a completely Randomized Block Design with 29 ashwagandha accessions as treatments during Kharif, 2018 at Medicinal and Aromatic Plant Research Station, Sri Konda Laxman Telangana State Horticultural University, Rajendranagar, Hyderabad. Each treatment was randomly replicated thrice. The analysis of variance indicates presence of significant amount of variability in the genotypes population which was studied. The study revealed that high PCV and GCV estimates recorded for plant height, number of branches per plant, leaf length, leaf width, days to flower initiation, fresh leaf weight per plant, dry leaf weight per plant, seed yield per plant, seed yield per hectare, main root length, root diameter, number of secondary roots per plant, fresh root weight per plant, dry root weight per plant, fresh root yield per hectare, dry root yield per hectare have indicated the existence of wider genetic variability for these traits in the genotypes studied.
High heritability coupled with high genetic advance as per cent mean indicates existence of additive gene action which was observed in plant height, leaf width, leaf length, days to flower initiation, fresh leaf weight per plant, dry leaf weight per plant, number of berries per plant, seed yield per plant, seed yield per hectare, main root length, number of secondary roots per plant, fresh root weight per plant, dry root weight per plant, fresh root yield per plant, dry root yield per plant, starch estimation, fiber content, starch fiber ratio, total alkaloid content. Thus, considering the estimates of genetic parameters like genotypic coefficients of variation, heritability and genetic advances per cent of mean together, it is evident that the plant height, leaf width, leaf length, days to flower initiation, fresh leaf weight per plant, dry leaf weight per plant, number of berries per plant, seed yield per plant, seed yield per hectare, main root length, number of secondary roots per plant, fresh root weight per plant, dry root weight per plant, fresh root yield per plant, dry root yield per plant, starch estimation, fiber content, starch fiber ratio, total alkaloid content are most important characters. Selection for these characters could be more effective for improving dry root yield and quality in ashwagandha.
Pages: 188-192  |  627 Views  228 Downloads


The Pharma Innovation Journal
How to cite this article:
S Venugopal, M Padma, M Rajkumar, N Seenivasan, P Saidaiah, G Sathish. Genetic variability studies in ashwagandha (Withania somnifera L.) for yield and quality traits. Pharma Innovation 2021;10(8):188-192.

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