International Journal of Current Microbiology and Applied Sciences (IJCMAS)
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Original Research Articles                      Volume : 6, Issue:10, October, 2017

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : /
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2018: 95.39
NAAS RATING 2020: 5.38

Int.J.Curr.Microbiol.App.Sci.2017.6(10): 1352-1364

Heterosis and Inbreeding Depression for Grain Yield and Related Morphophysiological Characters in Wheat (Triticum aestivum L.)
Sanjeev Kumar1*, S.K. Singh1, Lokendra Singh1, S.K. Gupta1, Vishwanath1, Prashant Yadav2, P.C. Yadav1, Y. Pandey1, Lokendra Singh1 and Surendra Kumar1
1Department of genetics and plant breeding, Chandra Shekhar Azad University of Agriculture and Technology, Kanpur-208002 (U.P.), India
2ICAR-Indian Agricultural research Institute, New Delhi 110012, India
*Corresponding author

A set of 45 crosses of wheat were generated by crossing 10 lines viz., K-9533, K-9162, K9465, K8962, HUW-234, NW-2036, K-9423, K9351, KRL-210 and K-906 following half diallel design. Ten parents, 45F1 hybrids and 45 F2 populations using Randomized Block Design with three replications were evaluated for yield and other important morphophysiological characters at Kanpur (UP, India). Significant genetic differences were observed among the parents, F1 hybrids and F2 populations for all the characters under study. The cross K9465 x K9351 and K9162 x K906 exhibited higher heterosis over economic parent ‘K 9423’ along with considerable inbreeding depression indicating that this cross could be suitable for exploitation of hybrid vigour for grain yield. The cross, K9465 x K9351 and K9162 x K906 had stable performance in both generations hence, can be exploited for development of high yielding stable lines and or isolation of desirable segregants. Negative estimates of heterotic effects were observed in some traits may be attributed to inter-allelic interactions.

Keywords: Heterosis, Inbreeding depression, F1 hybrids, F2 population, Wheat, Generations.

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How to cite this article:

Sanjeev Kumar, S.K. Singh, Lokendra Singh, S.K. Gupta, Vishwanath, Yadav Prashant, P.C. Yadav, Y. Pandey, Lokendra Singh and Surendra Kumar. 2017. Heterosis and Inbreeding Depression for Grain Yield and Related Morphophysiological Characters in Wheat (Triticum aestivum L.).Int.J.Curr.Microbiol.App.Sci. 6(10): 1352-1364. doi:
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