Abstract
This study attempts simple linear and multiple regression analyses between the final grain yield of sorghum and the elements of climate for Kabba in the wet sub-humid climate of Nigeria during the different phenological periods of the crop's growth. It was found that fluctuations in air temperature and rainfall during the first 94 days of the sowing of the crop combine to reduce the final grain yield of sorghum at the station while rainfall supply during the pre-sowing period and temperature during the grain filling period tend to increase the final grain yield of the crop. The combined effect of the 4 climatic elements was found to account for 79.8per cent of the variability in sorghum yield at the station. The implications of the results obtained for sorghum farming at the station are also discussed.
