DURATION AND GRAIN YIELD ASSESSMENT OF WHEAT (Triticum aestivum) IN SOUTHERN RAJASTHAN UNDER PROJECTED CLIMATE CHANGE SCENARIOS

N.S. SOLANKI¹*, SANTOSH DEVI SAMOTA^2
1AICRP on Agrometeorology, Department of Agronomy, Maharana Pratap University of Agriculture and Technology, Udaipur, 313001, Rajasthan, India
²AICRP on Agrometeorology, Department of Agronomy, Maharana Pratap University of Agriculture and Technology, Udaipur, 313001, Rajasthan, India
* Corresponding Author : solanki.narayan@rediffmail.com

Received : 17-05-2018     Accepted : 27-05-2018     Published : 30-05-2018
Volume : 10     Issue : 10       Pages : 6121 - 6123
Int J Agr Sci 10.10 (2018):6121-6123

Keywords : Climate change, crop duration, crop yield, temperature, wheat
Academic Editor : Sagar Kamna, Radhakrishnan Kalidoss
Conflict of Interest : None declared
Acknowledgements/Funding : Author thankful to Maharana Pratap University of Agriculture and Technology, Udaipur, 313001, Rajasthan, India. Author also thankful to Dr VUM Rao, Project Coordinator, AICRPAM, CRIDA, Hyderabad and Project Incharge, AICRPAM, PAU, Ludhiana
Author Contribution : All author equally contributed

The impact of projected climate during 2030-2090 on the duration and yield of wheat in Southern part of Rajasthan has been analyzed using DSSAT model v 4.5. Data from field experiments conducted at Udaipur, with wheat variety Raj-4037 grown during rabi season of 2008-09 to 2010-11, was used for calibration and validation of model. The crop sown on 5th November showed projected decline in grain yield from 9.3 % in the year 2030 to 35.4 % in 2090. Delayed sowing (5th December and 20th December) showed lower decline in the projected grain yield and duration for physiological maturity. Advance sowing resulted higher decline in grain yield and days to attain physiological maturity of wheat. Incremental unit of maximum and minimum temperatures (0.5 to 3.0oC) during the entire growth period showed that days required for maturity as well as grain yield under each sowing environment decreased as compared to normal durations and grain yield.

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