Vol. 7, Issue 3 (2019)
Assessment of genetic divergence in rice genotypes under middle Gujarat condition
Author(s): Ujjval I Solanki, Mahesh B Parmar and Lalji N Gediya
Abstract: D2 analysis indicated wider genetic diversity among 60 genotypes of rice, which were grouped into twelve clusters. In general, intra-cluster distances were lower than inter-cluster distances, indicating that genotypes included within a cluster tended to diverse less from each other. Maximum genetic divergence was observed between cluster V and IX, followed by Cluster V and VII, while closest proximity was noticed between cluster I and IX. The characters viz., grain yield, grain L/B ratio, panicle length and amylose content contributed much to the total genetic divergence. Hence, selection for divergent parents based on these characters would be useful for developing potential hybrids and increasing scope of isolating desirable recombinants in breeding generation in rice. On the basis of cluster mean values, cluster IX was superior for grain yield, plant height and panicle weight; cluster XII for days to 50 percent flowering; cluster XI for effective tillers per plant; cluster VIII for panicle length; cluster IV for straw yield and cluster VII for harvest index. While cluster VI and X was good for amylose content. The genotypes belonging to the clusters separated by high genetic distance could be used in hybridization programme for obtaining a wide spectrum of variation among the segregants.
Pages: 2825-2828 | 335 Views 69 Downloads
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How to cite this article:
Ujjval I Solanki, Mahesh B Parmar, Lalji N Gediya. Assessment of genetic divergence in rice genotypes under middle Gujarat condition. Int J Chem Stud 2019;7(3):2825-2828.