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籼稻品种窄叶青８号是我国北方稻区水稻育种上重要的稻瘟病抗源之一。本文利用我国北方稻区的代表菌系中１０－８－１４和日本的代表菌系研５４－０４，对窄叶青８号与感病品种京系１７号和丽江新团黑谷的杂交Ｆ１Ｆ２、ＤＨ和Ｂ１Ｆ１群体进行抗病性鉴定，根据抗病性的分离，确认窄叶青８号的抗性由１对显性主效基因，即朱立煌等报道的Ｐｉ－ｚｈ基因控制。利用系研５４－０４接种窄叶青８号与９个具有已知抗病基因的鉴别品种杂交的Ｆ２群体，各群体都表现二基因的独立遗传，证明Ｐｉ－ｚｈ基因与Ｐｉ－ｉ、Ｐｉ－ｋｍ、Ｐｉ－ｚ、Ｐｉ－ｔａ、Ｐｉ－ｔａｚ、Ｐｉ－ｚｔ、Ｐｉ－ｋｐ、Ｐｉ－ｂ和Ｐｉ－ｔ等９个已知抗病基因间存在非等位关系，是新的抗稻瘟病基因。
Indica Rice Variety Zhanyeqing 8 is one of the most important sources of rice blast resistance in rice breeding in northern China. In this paper, 10-8-14 representative strains of rice in northern China and 54-04 Japanese representative strains of bacteria were used to study the hybrid F1F2 between Narzaiqing 8 and susceptible cultivar Jing-17 and Lijiang-Xinqui-Heigu , DH and B1F1 populations. According to the isolation of disease resistance, it was confirmed that the resistance of Zayyeqing 8 was controlled by Pi-zh gene reported by Zhu Lihuang et al. In F2 population of crosses between Zhongyouqing 8 and 9 identified cultivars with known disease resistance genes, each group showed the independent inheritance of two genes, which proved that Pi-zh gene was positively associated with Pi-i, Pi There is a non-allelic relationship among 9 known resistance genes such as -km, Pi-z, Pi-ta, Pi-taz, Pi-zt, Pi-kp, Pi-b and Pi- Blast gene.