volume 37 issue 4 (december 2003) : 274 - 278
COMBINING ABILIlY AND HETEROSIS IN WHEAT
1. Department of Genetics and Plant Breeding,
College of Agriculture, G. B. P. U. A. and T., Pantnagar - 263145, India
ABSTRACT
Combining ability and heterosis were studied in a 8 x 8 diallel set of wheat. Analysis of variance revealed the presence of significant variance due to gca among the parents and due to sea among the crosses for all the traits studied, except for effective tiller number for sea. Low estimates of predictability ratio indicated predominance of non-additive gene effects for grain yield, total dry matter, 100-seed weight, harvest index and days to maturity. Almost equal importance of additive and non-additive gene effects was observed for days to flower, flag leaf length, peduncle length and grains per spike, while, additive gene effects were predominant for plant height and effective tiller number, HD 2385 was identified as a good general combiner for grain yield. Significant heterosis over better parent and over standard variety was observed for all the traits, studied. The magnitude of heterosis was highest (74.4%) for grain yield over better parent and for toal dry matter (72.3%) over standard variety. The high magnitude (52.6%) of st andard heterosis was observed for grain yield.
KEYWORDS
REFERENCES
- Baker, R.J. (1978). Crop. Sci., 18: 533-536.
- Griffing, B. (1956). Aust. J. Biol Sci., 9: 463-493.
- Jenson, N.F. (1970). Crop. Sci., 10: 629-635.
- Mani, S.C. and Rao, MV. (1975). /ndianJ. Genet., 35: 330-335.
- • PraSad, K.D. etal (1998). /ndianJ. Genet., 58: 97-100.
- Rathore, BKS. and Chauhan, S.S. (1986). Agric. J., 73: 425-429.
- Singh, RK and Chaudhary, B.D. (1985). Biometrical Methods in Quantitative Genetic Analysis. Kalyani Publishers, New Delhi 318 p.
- Singh, K.B. and Kandola, H.S. (1961)./ndianJ. Genet., 29: 53-61.
- Singh, S. and Singh, R.B. (1978). /ndianJ. Genet., 38: 168-172.
Disclaimer :
All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.
Copyright :
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Published In
Indian Journal of Agricultural Research
Article Metrics
0
Views
Citations
Reviewed By
In this Article
APC
APC cover the cost of turning a manuscript into a published manuscript through peer-review process, editorial work as well as the cost of hosting, distributing, indexing and promoting the manuscript.
Publish With US
Submit your manuscript through user friendly platform and acquire the maximum impact for your research by publishing with ARCC Journals.
Become a Reviewer/Member
Join our esteemed reviewers panel and become an editorial board member with international experts in the domain of numerous specializations.
Open Access
Filling the gap between research and communication ARCC provide Open Access of all journals which empower research community in all the ways which is accessible to all.
Products and Services
We provide prime quality of services to assist you select right product of your requirement.
Support and Policies
Finest policies are designed to ensure world class support to our authors, members and readers. Our efficient team provides best possible support for you.
