Combining ability analysis in Linseed (Linum usitassimum L.)

Abstract

Combining ability analysis of 10x10 diallel (excluding reciprocal) set of 45 crosses in linseed were done for yield and its contributing characters during Rabi 2010-11 at Research Farm of Department of Genetic and Plant Breeding, Narendra Deva University of Agriculture a Technology, Narendra Nagar, Kumarganj, Ayodhya (UP) India. ANOVA for combining ability revealed the preponderance of additive gene effects for all the traits. On the basis of good gca effects for seed yield and other characters, Nagarkot was found good general combiner for plant height, number of secondary branches/plant, number of capsules/plant, number of seed/capsule, seed yield/plant, and harvest index. PKDL-62 was found good general combiner for plant height, number of secondary branches/plant, 1000-seed weight, seed yield/plant, biological yield/plant, harvest index, and oil content. PKDL-52 was found good general combiner for plant height, number of secondary branches/plant, 1000-seed weight, seed yield/plant, biological yield/plant, harvest index. On the basis of sca effects and perse performance following promising crosses Nagarkot x Shurbhi, Shurbhi x NDL-2004-05, PKDL x Chambal, T-397 x Shekhar and T-397 x Chambal were found suitable for seed yield improvement.