International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2018, Volume : 6, Issue : 2
First page : (664) Last page : (669)
Article doi: : http://dx.doi.org/10.18782/2320-7051.2945
Estimation of Heterosis for Seed Yield, Morphological Traits and Alternaria Blight Resistance in Linseed (Linum usitatissimum L.)
Pradeep Kumar1*, Gaurav Kamboj2, Ravi Kumar2 and P. K. Singh3
1Indian Institute of Wheat & Barley Research, Karnal-132001 (Haryana), India
2Sardar Vallabhbhai Patel University of Agriculture and Technology, Meerut-250110 (UP), India
3Chandra Shekhar Azad University of Agriculture & Technology, Kanpur-208002 (UP), India
*Corresponding Author E-mail: pradeeptaliyan231@gmail.com
Received: 3.05.2017 | Revised: 27.06.2018 | Accepted: 5.07.2018
ABSTRACT
A study was conducted for the estimation of heterosis involving 13 parents and their 26 F1s (direct cross) for seed yield, morphological traits and incidence of Alternaria blight resistance in linseed. The analysis of variance (ANOVA) showed highly significant differences among the parents and their F1s for all the characters under study, indicated that sufficient variability was existed in the present set of breeding material and further evaluation would be meaningful. The cross (JAWAHAR 1 x EC 322680) showed positive and significant heterosis over mid parent (64.12**), better parent (28.89**) and standard variety (28.89**) for seed yield and also showed significant heterosis for number of capsules per plant and corolla size whereas one other cross (GS 234 x EC 322680) showed significant heterosis over mid parent (67.92**) and better parent (35.54**) for seed yield. Hence these crosses would be exploited for isolating transgressive segregants for seed yield and its contributing components for genetic improvement of linseed.
Key words: Heterosis, Linseed, Alternaria blight, Seed yield, Morphological traits.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Kumar, P., Kamboj, G., Kumar, R. and Singh, P. K., Estimation of Heterosis for Seed Yield, Morphological Traits and Alternaria Blight Resistance in Linseed (Linum usitatissimum L.), Int. J. Pure App. Biosci.6(2): 664-669 (2018). doi: http://dx.doi.org/10.18782/2320-7051.2945
