Abstract: Objective To investigate the influence of temperature on the growth,sporulation quantity and pathogenicity of Fusarium solani.To find out the best way for promoting conidial production of Fusarium solani.Methods Fusarium solani from 5 different groups were incubated in dark for 7 days at 20℃,25℃,30℃,35℃,and 37℃,respectively.Group F was incubated in dark for 3 days at 35℃,and at 25℃ for the next 4 days.The diameters of the colonies were measured by vernier caliper on 24 h,3 d,5 d,and 7 d.Conidial production was determined by hematimeter on 3 d,5 d,and 7 d.Results Between The growing speed of Fusarium solani colony increased during 20℃ to 30℃,while decreased during 30℃ to 37℃ with the temperature going up.Conclusions Fusarium solani began to grow and produced conidiospore at 20 to 35℃.The pathogenicity of the Fusarium solani was affected by temperature obviously,with 30℃ as the suitable temperature.Incubation at 35℃ for 3 days and at 25℃ for consecutive 4 days was good for sporulation.

Key words: temperature, Fusarium Solani, conidial production