Vol. 10, Issue 7 (2021)

Author(s):
Juhi Pandey, RM Tripathi, Aman Singh, Vinod Singh and Upendra KU Mishra

Abstract:
The present research work comprises eighty-four advanced lines of wheat including checks, conducted at Main Experimental Station Research Farm of Acharya Narendra Deva University of Agriculture and Technology, Kumarganj, Ayodhya (U.P.) during Rabi 2019-20. The genotypes were evaluated in Augmented Block Design for character association and genetic divergence analysis, divided into 5 blocks of equal size. Each block had 20 plots of test entries along with 4 checks (viz. HD-2967, HD-2733.NW-5054 and DBW-187). The presence of genetic divergence among these lines was observed by Mahalanobis’s D² statistic. All the accesses were grouped into ten distinct clusters. The highest number of genotypes appeared in cluster III (16) followed by cluster X (14) and cluster V (12) while the lowest numbers of entries were reported in cluster VIII (3) & IX (4). Principal component analysis (PCA) indicated that the five principal components (PC1 to PC5) showed 85.8% of the total variability. PC1 to PC3 related to yield and its attributing traits, whereas PC4 was related to reproductive development.