OAR@ICRISATInfoCrop – a crop simulation model for assessing the climate change impacts on cropsKBoomirajauthorKByjeshauthorKLakshmiauthorNSritharanauthorR KKumarauthorDJawaharauthorThis study presents results of evaluation in terms of its validation and impact of climate change on Indian mustard (Brassica juncea), sorghum (Sorghum vulgare) and maize (Zea mays) by using the crop simulation model, ‘InfoCrop’. Simulated results of mustard model showed a spatial variation in yield among all five regions in both irrigated and rainfed mustard. Under irrigated conditions, the yield reduction in 2020, 2050 and 2080 would be highest in Eastern-IGP (Indo-Gangetic Plain) region followed by Central-IGP. This was due to maximum projected rise in temperature in Eastern-IGP where maximum and minimum temperature would rise by 5.1° and 5.6°C in 2080. The reduction of irrigated mustard yield was least in Northern-IGP under almost all scenarios. But in western India, yield reduction gradually increased from 2020 to 2080. In future climate change scenarios, the rainfall would be projected to increase in 2050 irrespective of the locations. But in 2020 and 2080 rainfall would reduce in Northern-IGP, Western and Central India. This was reflected higher yield reduction in rainfed mustard in these three locations. In sorghum, the future climate change scenario analysis showed that the yields (CSH 16 and CSV 15) are likely to reduce at Akola, Anantpur, Coimbatore and Bijapur. But yield of CSH 16 will increase slightly in Gwalior (0.1%) at 2020 and thereafter it will decline. At Kota the sorghum yield is likely to increase in 2020 (3.3 and 1.7 % in CSH 16 and CSV 15 respectively) with no change in 2050 and yields will be reduced at 2080 in both varieties. Maize trend is similar from the sorghum impact except in the UIGP where rainfall could be projected to increase in the future. In MIGP and SP(Southern Plateau), expected reduction would be 5%, 13%, 17% and 21%, 35%, 35% in 2020, 2050 and 2080 respectively from the current level.Climate Change2013Association of AgrometeorologistsArticle

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