National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The sensitivity analysis of three Brassica spp. (cv. RH30, Laxmi and RH0749) cultivar of wheat was performed to see the possible change in the grain yield due to change in weather (Tmax, Tmin and rainfall) and non-weather parameters (CO2) using InfoCrop and WOFOST model. The potential condition was assumed with congenial weather and adequate management practices. The higher per cent of benefits was obtained at 500 ppm but further increase in CO2 (550, 600, 650 and 700 ppm) combined with one unit increase in mean ambient temperature reduced the percent change in mustard yield. The interaction effect of temperature and CO2 concentration revealed that the response of variety Laxmi was quite higher followed by RH 0749 and RH 30. At highest CO2 concentration (700 ppm), the negative impact of temperature was simulated only at -1°C in all the mustard varieties. Under increasing of 20% rainfall scenario, the increase in the yield levels are higher in RH 0749 followed by Laxmi and RH 30 using both crop simulation models. The higher benefits was obtained at +20% rise in rainfall but further decrease or increase (-30 to -10% and +30 to +40%) in rainfall combined with change in mean ambient temperature ±3 to ± 5°C reduced the percent change in mustard yield. The interaction effect of temperature and rainfall change revealed that the response of RH 0749 variety was quite higher followed by RH 30 and Laxmi.
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