Dr. P.R. VaishnavG.B.Patel2017-10-132017-10-132004http://krishikosh.egranth.ac.in/handle/1/5810033043A timely and reliable forecast of yield of crop needs little emphasis for monsoon dependent country like India and where, the economy is mainly based on agricultural production. Weather is a major factor, affecting crop production in advanced agricultural systems in our country. The large variation in yield is predominantly due to weather parameters. In view of fluctuating weather effects, a timely and reliable forecast of crop yield could help in deciding the policies. Rice is an important staple food of masses in the country. The present study has been taken up to identify the nature of the effect of weather parameters and technological advancement on rice crop and thereby to suggest suitable preharvest forecast models for Kheda district of Gujarat state.enAgricultural StatisticsAnalysisThesis