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Journal of Applied and Natural Science
An International Journal | Print ISSN: 0974-9411 | Online ISSN: 2231-5209
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Abstract
Journal of Applied and Natural Science 8 (1) : 1-4 (2016)
Combining ability analysis in linseed (Linum usitatissimum L.) for improvement of seed yield and its component traits
Vivek Kumar Singh1*, Vijay Sharma2, Mohit Chaudhary1, Sunil Kumar Paswan4, Azad Ahmad1, Moolchandra Verma3 and M. P. Chauhan1
1Department of Genetics & Plant Breeding, N.D. University of Agriculture & Technology, Faizabad - 224 229, INDIA
2Department of Genetics & Plant Breeding, Maharana Pratap University of Agriculture & Technology, Udaipur - 313 001, INDIA
3Department of Vegetable Science, N.D. University of Agriculture & Technology, Faizabad - 224 229, INDIA
4Department of Genetics & Plant Breeding, C.S.A. University of Agriculture & Technology, Kanpur – 208 002, INDIA
*Corresponding author E-mail: vks.slay@gmail.com
Abstract : Twenty eight hybrids developed from eight genotypes of linseed through diallel mating design (excluding reciprocal) along with one checks viz., Shekhar were evaluated in randomized block design with three replications for eleven distinct morphological traits during rabi season of 2012-13, to estimate the general combining ability (GCA) of the parents and specific combining ability (SCA) of hybrids considered for the development of high yielding varieties. The analysis of variance for combining ability revealed significant mean sum of squares due to GCA and SCA for all the traits under study. Genotype EC-1392 (0.50) and TL-11 (0.45) has been found good general combiner with highest magnitude of GCA effects for seed yield per plant. In addition to above, EC-1392 and TL-11 also showed good GCA effects for plant height, secondary branches per plant, capsules per plant and biological yield per plant. Hybrids A.95.B x Shekhar (2.43), TL-11 x EC-1392 (1.71) and NDL-2004-05 x GS-234 (1.53) showed higher positive significant SCA effects for seed yield per plant. These hybrids also exhibited positive significant SCA effects for plant height, secondary brances per plant, capsules per plant, indicating potential for exploiting hybrid vigour in breeding programme.

Keywords :GCA, Linseed, SCA, Seed yield
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