Agricultural Science Digest

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Agricultural Science Digest, volume 41 issue 1 (march 2021) : 56-60

Simulating the Impact of Climate Change on Maize Productivity in Trans-gangetic Plains using Info Crop Model

Baljeet Kaur, Som Pal Singh, P.K. Kingra
1Department of Climate Change and Agricultural Meteorology, Punjab Agricultural University, Ludhiana-141 001, Punjab, India.
Cite article:- Kaur Baljeet, Singh Pal Som, Kingra P.K. (2020). Simulating the Impact of Climate Change on Maize Productivity in Trans-gangetic Plains using Info Crop Model. Agricultural Science Digest. 41(1): 56-60. doi: 10.18805/ag.D-5079.
Background: Climate change is a nonpareil threat to the food security of hundred millions of people who depends on agriculture for their livelihood. A change in climate affects agricultural production as climate and agriculture are intensely interrelated global processes. Global warming is one of such changes which is projected to have significant impacts on environment affecting agriculture. Agriculture is the mainstay economy in trans-gangetic plains of India and maize is the third most important crop after wheat and rice. Heat stress in maize cause several changes viz. morphological, anatomical and physiological and biochemical changes. 
Methods: In this study during 2014-2018, impact of climate change on maize yield in future scenarios was simulated using the InfoCrop model. Average maize yield from 2001-15 was collected for Punjab, Haryana and Delhi to calibrate and validate the model. Future climatic data set from 2020 to 2050 was used in the study to analyse the trends in climatic parameters.
Result: Analysis of future data revealed increasing trends in maximum temperature and minimum temperature. Rainfall would likely follow the erratic behaviour in Punjab, Haryana and Delhi. Increase in temperature was predicted to have negative impact on maize yield under future climatic scenario.
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