Wheat occupies the prime position among cereals and is one of the most important agricultural commodities in the international trade. It is one of the major staple food crops in the world, being consumed from ancient times by human beings. For cultivation of wheat, cool and dry weather for a fairly long growing period followed by dry, warm weather to enable the grain to ripen properly is required. In India, wheat is a winter (rabi) crop and high temperature at both the ends of the crop season determines the duration available for wheat cultivation, which ranges from 100 days in south to more than 145 days in north western plains, 120 days in central zone and 180 days in the hills (Anonymous, 2008). Different sowing dates affect the growth of wheat mainly due to the effects of temperature and day length. Here, mainly 3 sowing patterns for wheat cultivation 1. Early 2. Timely and 3. Late throughout of the year. Temperature and short winter growing season in central India are main reasons for low yield in wheat. High temperature increases the rate of grain filling but, the duration of grain filling is reduced considerably and grain weight is decreased (Sofield et al., 1977 and Wardlaw et al., 1989).