Abstract: Genetic divergence is an efficient tool for the selection of parents used in hybridization programme. In the present study, forty rice genotypes were raised at Experimental Field of Department of Genetics and Plant Breeding, SHIATS, during Kharif 2013 for identify diverse genotypes using D2 analysis. The forty genotypes were grouped into seven clusters based on Torcher cluster analysis with cluster III containing the maximum of 10 genotypes followed by 9 genotypes in cluster II, 7 genotypes in cluster I, 6 genotypes in cluster IV, 4 genotypes in cluster VI and 2 genotypes each in cluster V & VII. The highest inter cluster distance was observed between cluster IV and VII followed by cluster III and VII, cluster III and VI these lines may be utilized in further breeding programme for the exploitation of hybrid vigour. The intra cluster distance was maximum in cluster III followed by II and I indicate hybridization involving genotypes within the same clusters may result in good cross combinations. Among the thirteen traits studied, maximum contribution was made by number of spikelets per panicles (38.08%) followed by grain yield (23.08%) plant height (13.59%) and flag leaf length (13.21%). Therefore, these characters may be given importance during hybridization programme.
Keywords: Rice, genetic diversity, cluster.
Title: Genetic Diversity Analysis of Rice Germplasm Lines for Yield Attributing Traits
Author: Satish Kumar Rai, Ramesh Chandra, Suresh B.G., P.K. Rai, Ravi Kumar, Sandhya
International Journal of Life Sciences Research
ISSN 2348-3148 (online), ISSN 2348-313X (Print)
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