Climate change adversely affecting the yield of different crops. Wheat crop production also severely affected due to increase in temperature and carbon dioxide level. Study has been done on Varanasi research station of North Eastern Plain wheat growing zone of India. In the present study the increase in yield was observed at different levels of carbondioxide concentration which ranges from (3 - 9). At different levels of temperaturesdrastic loss in yield was noticed which ranges from (9 -17). AfterStudying the combined effects of temperature and all levels of carbondioxide was observed the loss of yield.
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