2023, Vol. 8, Special Issue 6

Cluster analysis were carried out in rice germplasm for eight characters. The experiment was conducted at instructional cum Research Farm, Department of Genetics and Plant Breeding, College of Agriculture, Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) during kharif 2017 to acces association analysis of the 55 germplasm accessions of rice along with popular standard checks Chattisgarh Zinc rice 1, Samleshwari Danteshwari, Indira Barani dhan and Indira Aerobic1. After evaluation of 55 accessions for eight quantitative characters, total 55 rice genotypes under this study were grouped into 5 clusters. Cluster I comprise 8 genotypes (14.54%), Cluster II, Cluster III, Cluster IV and Cluster V consisted 15genotypes (27.27%), 7 genotypes (12.72%), 12 genotypes (21.81%) and 13 genotypes (23.63%) respectively. Cluster II has highest number of genotypes (15). The intra cluster distance ranged from10.87 to 21.40. The maximum intra-cluster distance was observed for cluster III (21.40) followed by cluster IV (12.43) and cluster II (11.49). Cluster 1 (10.86) had minimum intra-cluster distance with more than one genotype. The inter-cluster distance varied from78.547 to 24.495. The inter-cluster distance was maximum between clusters 3 and 4 (78.547) followed by clusters 1 and 3 (71.143) and minimum inter-cluster distance was observed between clusters 1and 4 (24.495), On the basis of cluster mean values, top three accessions were identified for the yield improvement programme.