Vol. 6, Issue 6 (2018)
Genetic diversity studies among rice (Oryza sativa L.) Genotypes for grain yield, yield components and nutritional traits in rice
Author(s): RS Archana, M Sudha Rani, KM Vishnu Vardhan and G Fareeda
Abstract: Genetic divergence was assessed among 38 rice genotypes to study the nature and magnitude of genetic divergence using D2 statistics. The experimental material was divided in to eight clusters based on D2 values with cluster I containing the maximum of 20 genotypes. Maximum intra cluster distance was observed in cluster I indicating greater genetic divergence between the genotypes belonging to this cluster. The cluster V and cluster VIII had highest average compared to other groups in terms of five traits. Maximum inter cluster distance was recorded between cluster II and VI followed by II and V and II and III indicating wider genetic diversity and it may be used in rice hybridization programme for improving grain yield. The maximum contribution of individual trait to the divergence among genotypes recorded in protein content followed by number of filled spikelets per panicle, days to 50 per cent flowering and 1000 grain weight. Thus, these genotypes hold great promise as parents for obtaining promising elite lines through hybridization and to create further variability for these characters.
Pages: 134-137 | 642 Views 58 Downloads
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How to cite this article:
RS Archana, M Sudha Rani, KM Vishnu Vardhan, G Fareeda. Genetic diversity studies among rice (Oryza sativa L.) Genotypes for grain yield, yield components and nutritional traits in rice. Int J Chem Stud 2018;6(6):134-137.
