International Journal of Pure & Applied Bioscience (IJPAB)
Year : 2017, Volume : 5, Issue : 4
First page : (331) Last page : (340)
Article doi: http://dx.doi.org/10.18782/2320-7051.3069
Study of Yield and Yield Components of Wheat (Triticum aestivum L.) Genotypes at Grain Filling Stage under Heat Regimes
Bandana Jaiswal1, Shambhoo Prasad1*, Rakesh Dwivedi1, Sonam Singh1, Reena Rani1,
Shalini Shrivastava1, Ajay Kumar1 and R. K. Yadav2
1Department of Plant Molecular Biology and Genetic Engineering, Narendra Deva University of Agriculture and Technology, Kumarganj, Faizabad-224229, U.P (India)
2Department of Crop Physiology, Narendra Deva University of Agriculture and Technology, Kumarganj, Faizabad-224229, U.P (India)
*Corresponding Author E-mail: shambhoonduat@gmail.com
Received: 1.06.2017 | Revised: 11.06.2017 | Accepted: 12.06.2017
ABSTRACT
A field experiment was conducted with wheat genotypes Halna, PBW 343, NW 1014, DBW 16, K 911 and AAI 11 during rabi 2015-16 at the student instructional farm of Narendra Deva University of Agriculture and Technology, Kumarganj, Faizabad (U.P). Heat treatment was given by delayed sowing of 65 days (25 January) than normal date of sowing (23 November 2015). So, that wheat genotypes could experience severe heat stress at grain filling stage. The screening of wheat genotypes was done on the basis of plant height, tiller number per plant, days to 100% flowering, days to 100% maturity, stay green duration, number of spikes per plant, spike length, number of grain per spike, test weight and yield plant-1 at grain filling stage. The wheat genotypes Halna, NW 1014, DBW 16, K 911, and AAI 11 had high membrane stability index (MSI) and stay green duration also showed less percent reduction in yield and yield components comparatively PBW 343 and DBW 16. Therefore, MSI and stay green duration can be used as physiological screening indices for heat tolerance genotypes at grain filling stage.
Key world: MSI, Stay green duration, Wheat, Heat stress,Yield components.
Full Text : PDF; Journal doi : http://dx.doi.org/10.18782
Cite this article: Jaiswal, B., Prasad, S., Dwivedi, R., Singh, S., Rani, R., Shrivastava, S., Kumar, A. and Yadav, R.K., Study of Yield and Yield Components of Wheat (Triticum aestivum L.) Genotypes at Grain Filling Stage under Heat Regimes, Int. J. Pure App. Biosci. 5(4): 331-340 (2017). doi: http://dx.doi.org/10.18782/2320-7051.3069
