在田间评价了8个马铃薯品种Cardinal, Ultimus, Cosima, Mansur, Monaliza, Ajax, Diamant和Desiree对桃蚜Myzus persicae (Sulzer)的抗生性.结果表明在所有品种中,Cardinal对桃蚜表现出相对较高的抗生性,用其繁殖的桃蚜具有最低的内禀增长率(rm), 其次为品种Ultimus;在品种Cardinal上繁殖的桃蚜其内禀增长率(rm)比在最敏感的品种Desiree 上小1.6倍.“,”Eight potato cultivars i.e. Cardinal, Ultimus, Cosima, Mansur, Monaliza, Ajax, Diamant and Desiree were screened for their relative antibiosis in the potato field to peach-potato aphid, Myzus persicae (Sulzer). Among all the tested cultivars, Cardinal showed comparatively high resistance and showed the lowest rm, followed by Ultimus. The rm for Cardinal was 1.6 times lower than that of rm on Desiree, which was found consistently the most susceptible cultivar.