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International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2019, Volume : 7, Issue : 1
First page : (183) Last page : (189)
Article doi: : http://dx.doi.org/10.18782/2320-7051.6829

Heterosis Studies in Barley (Hordeum vulgare L.) Under Heat Stress Environment

Naresh Parashar*, D. K. Gothwal, Guman Singh, Mukesh Bhakal, Ravi Kumar and
Vaibhav Sharma

Department of Plant Breeding and Genetics, S.K.N. Agriculture University, Jobner, Jaipur- 303329
*Corresponding Author E-mail: parashar.naresh1@gmail.com
Received: 27.08.2018  |  Revised: 10.09.2018   |  Accepted: 16.09.2018  

 ABSTRACT

The present investigation was carried out to estimate relative heterosis and heterobeltiosis in barley genotypes to identify desirable cross combinations under heat stress for days to anthesis, duration from anthesis to maturity, days to maturity, plant height, number of effective tillers per plant, flag leaf area, number of grains per spike, peduncle length, spike length, 1000-grain weight, biological yield per plant, grain yield per plant and harvest index. The F1 crosses were made in half diallel fashion using 10 genotypes. The experiment was conducted in randomized block design with three replications during rabi 2016-17. The results revealed sufficient degree of heterosis and heterobeltiosis for all the characters studied. On the basis of per se performance, heterosis and heterobeltiosis, the crosses RD-2035XRD-2052 and RD-2592XRD-2660 emerged as good cross combinations for grain yield per plant in heat stress environment. Therefore, it could be concluded that these cross combinations may be exploited in future breeding programme for the development of good heterotic gene pool of barley for improving grain yield and other contributing traits under heat stress environment.

Key words: Barley, Heterosis, Heterobeltiosis, Heat Stress.

Full Text : PDF; Journal doi : http://dx.doi.org/10.18782

Cite this article: Parashar, N., Gothwal, D.K., Singh, G., Bhakal, M., Kumar, R. and Sharma, V., Heterosis Studies in Barley (Hordeum vulgare L.) Under Heat Stress Environment, Int. J. Pure App. Biosci.7 (1): 183-189 (2019). doi: http://dx.doi.org/10.18782/2320-7051.6829