Abstract
Seven wheat genotypes were grown at 9°-24°C during the stages from heading to 20% seed moisture. The interactions between genotypes and temperatures were strong in seed set, moderate in final grain weight and low in earliness of maturity. With respect to duration, the interactions between genotypes and temperatures were different for the period before yellow ripeness, as compared to the period after yellow ripeness. Mechanisms of stability to temperature, associations between stability to temperature in different characters and associations between performance and stability to temperature in the same characters are discussed.