Vol. 7, Issue 4 (2019)
Genetic divergence studies in brinjal (Solanum melongena L.) under Tarai conditions of Uttarakhand
Author(s): Saurabh Bhatt, Dhirendra Kumar Singh, Leela Bhatt, Ashish Kumar Singh and Sandeep Yadav
Abstract: Forty One genotypes of two groups (long purple and round purple) including two checks (Pant Rituraj and Pant Samrat) at executed at Vegetable Research Centre, Department of Vegetable Science, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, U.S. Nagar, during winter season 2017-2018 to estimate genetic divergence in brinjal genotypes. Observations were recorded on 13 quantitative characters namely as, Days to 50% flowering, days to first harvest, total marketable fruit yield (q/ha), plant height(cm), fruit length(cm), fruit diameter(cm), number of primary branches per plant, number of secondary branches per plant, number of fruits per plant, average fruit weight(g), fruit yield per plant(kg), harvest-wise yield kg/plot and reaction to fruit and shoot borer. In the present investigation, D2 analysis revealed the presence of considerable diversity in the set of 41 genotypes of brinjal. The genotypes were observed to be distributed in ten different clusters. Cluster I had highest number of genotypes (30) followed by cluster IV (3) and Cluster II, III, V, VI, VII, VIII, IX and X having one genotype each. Maximum intra-cluster distance was found in cluster IV showing existence of wide genetic divergence. Maximum inter-cluster D2 values were observed between the clusters IX and X indicating that the genotypes in these clusters can be used as parents in hybridization programme. Among the characters, reaction to fruit and shoot borer showed maximum contribution towards the diversity followed by average fruit weight, number of fruits per plant, fruit length, days to first harvest and fruit diameter Among the characters, reaction to major biotic stress like fruit and shoot borer showed maximum contribution towards the diversity followed by average fruit weight, number of fruits per plant, fruit length, days to first harvest and fruit diameter. The genotypes PB-301, PB-306 and PB-307 as round fruit shape genotypes, PB-321, PB-310 and PB-319 for long fruit shape genotypes are higher yielder and the infestation of fruit and shoot borer was found minimum for PB-304 and PB-330. Based on these observations, above genotype can be recommended for cultivation under tarai region of Uttarakhand.
Pages: 1456-1459 | 422 Views 66 Downloads
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How to cite this article:
Saurabh Bhatt, Dhirendra Kumar Singh, Leela Bhatt, Ashish Kumar Singh, Sandeep Yadav. Genetic divergence studies in brinjal (Solanum melongena L.) under Tarai conditions of Uttarakhand. Int J Chem Stud 2019;7(4):1456-1459.
