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通过对李属8个种,185个品种果实上细菌性穿孔病发病情况的调查,发现对细菌性穿孔病免疫的有黑刺李、杏李,乌苏里李、樱桃李、美洲李、加拿大李6个种,中国李和欧洲李有部分品种免疫,免疫比例均为81.3%。中国李抗病1、2、3、4、5级的比例为1.2%、1.9%、1.9%、5.0%、8.7%,表现出不同的抗病性。
Through the investigation of the incidence of bacterial perforation disease in 8 varieties of Prunus and 185 varieties of fruits, it was found that there are many kinds of bacteria such as black thorn, apricot, ussuri, cherry, plum, Canada 6 species of Li, China Li and some species of European immunity Li, the proportion of 81.3% were immunized. China Li disease resistance 1,2,3,4,5 level of the proportion of 1.2%, 1.9%, 1.9%, 5.0%, 8.7%, showing different disease resistance.