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本文研究了小麦与秆锈菌３种典型类型非亲和性互作对秆锈菌生长发育的影响。结果表明，完全非亲和性互作ＩＳｒ５－Ｒａ／２１Ｃ３ＣＫＲ（Ｓｒ５／Ｐ５）使秆锈菌芽管生长方向与叶片长轴夹角显著变小，比对应的亲和性互作ＩＳｒ５－Ｓａ／２１Ｃ３ＣＫＲ（ｓｒ５／ｐ５）平均小６．２２°。高度非亲和性互作ＩＳｒ１１－Ｒａ／３４ＭＫＧ（Ｓｒ１１／Ｐ１１）使秆锈菌附着胞总分化率显著降低，接种后第１、２ｄ平均分别降低２１．１６％、３３．３７％，３种类型非亲和性互作对附着胞在气孔上的定位无影响。各类非亲和性互作对秆锈菌菌落扩展有不同程度极显著抑制作用。完全非亲和性互作、高度非亲和性互作及中度非亲和性互作ＩＳｒ６－Ｒａ／３４Ｃ２ＭＦＲ（Ｓｒ６／Ｐ６）侵染点寄主细胞坏死率分别为６６．７％～７６％、近１００％及５２．４％～８７．１％。
In this paper, the effects of three typical types of non-affinity interaction between wheat and stalk rust on the growth and development of stalk rust were studied. The results showed that the ISr5-Ra / 21C3CKR (Sr5 / P5) interaction between ISr5-Ra / 21C3CKR (Sr5 / P5) and the long- 21C3CKR (sr5 / p5) average small 6.22 °. The total non-affinitive interaction of ISr11-Ra / 34MKG (Sr11 / P11) decreased the total differentiation rate of P. epidermidis adventitious roots, and decreased by 21.16%, 33.37% and 3 kinds Type non-affinity interactions have no effect on the attachment of appressorial cells on the stomata. Various types of non-affinity interactions on the proliferation of stem rust fungi have varying degrees of very significant inhibitory effect. The rates of host cell necrosis at ISr6-Ra / 34C2MFR (Sr6 / P6) infection sites were 66.7% -76% for complete nonaffinity interaction, highly nonaffinity interaction and moderately nonaffinity interaction , Nearly 100% and 52.4% ~ 87.1%.