• K.PALANIRAJA
• R. PARTHASARATHI
• S.VENNILA

The present investigation was conducted at Plant Breeding Farm, Department of Genetics and Plant Breeding, Faculty of Agriculture, Annamalai University. The nature and magnitude of genetic divergence were estimated in 30 rice genotypes using Mahalanobis D2 statistics by considering 11 economic characters. In D2 analysis 30 genotypes were grouped into six clusters with cluster I and III constituted maximum number of genotypes (i.e.) 13 and 9 genotypes, respectively. The intra cluster distance was maximum in cluster IV (35.57) which was closely followed by cluster II (34.07) and cluster III (28.15). The inter cluster distance was maximum between cluster I and IV (2302.00) followed by cluster II and III (1511.20). Findings of this study can be utilized for selection of divergent genotypes for further crossing programme.

D2 analysis, divergence, intra and inter cluster.

"GENETIC ANALYSIS OF RICE (Oryza sativa L.,) GENOTYPES FROM DIFFERENT GEOGRAPHICAL REGIONS UNDER COASTAL SALINE ENVIRONMENT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.5-8, June-2019, Available :http://www.jetir.org/papers/JETIR1906782.pdf

"GENETIC ANALYSIS OF RICE (Oryza sativa L.,) GENOTYPES FROM DIFFERENT GEOGRAPHICAL REGIONS UNDER COASTAL SALINE ENVIRONMENT", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp5-8, June-2019, Available at : http://www.jetir.org/papers/JETIR1906782.pdf