摘要：This study was conducted to screen tomato resources resistant to gray mold for the first time by in-vitro stem inoculation method.The results showed that Solanum habrochaites T2-07-316 was highly resistant to gray mold,and had the relative stem infection rate and relative stem rot expansion rate of 0 on the 6 th day after inoculation.There were also other seven transgenic common tomato materials which showed higher resistance to gray mold,with a relative stem infection rate in the range of 15.00%-38.33%and a relative stem rot expansion rate in the range of 10.22%-23.57%.Among them,T2-07-337 had the best resistance.