Influence of rainfall, humidity, sunshine, maximum and minimum temperatures on the yield of cotton at Coimbatore

The statistical technique of Fisher (1924) was used to examine the influence of meteorological parameters on the yield of cotton crop at Coimbatore. It was observed that the rainfall and hours of sunshine should be more than their normal values for a good crop. More humidity during elongation and branching of the crop is useful for more yield. A lower minimum temperature during sowing period and high maximum and minimum temperatures during flowering are attributed to be beneficial for a better cotton crop.