Wheat (Triticum aestivum L) is a cereal crop of immense commercial significance world over.  With an annual production of about 715.5 million tones, wheat is the second largest staple crop of the world and 17% of the global cultivable land is being used for wheat production. The world food production needs to be increased at least by 70% in the coming 35 years so as to meet the growing food demand from an ever increasing population. Different environmental stresses, both biotic and abiotic are the major constraints in attaining the potential wheat productivity. Further, in the recent years, the changing global climate is playing a havoc on agriculture and wheat production is also been adversely affected. The world cereal output in 2012 has shown a 5.7% diminution in wheat production. Wheat production in India has always been at stake of temperature variations but in present times due to increasing atmospheric temperature, the wheat production in India is being adversely effected. The temperature is predicted to rise by 2.5-4.3°C by the end of the century with significant effects on food production and undernourishment and with every 1°C increase in temperature during grain filling stage in case of wheat, grain yield is expected to decline by 5.4%.

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