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期 刊 ：植物保护学报 1995年

关键词：水稻；白叶枯病菌；补偿作用；光合同化物；

Keywords:rice Xanthomonas campestris pv. oryzae ‘ compensation photosynthetic assimilator,

摘 要 ：水稻抗白叶枯病品种ＩＲ２６和感病品种金刚３０在拔节期接种白叶枯病菌后，接种叶片净光合速率均下降，而与病叶相邻的健叶的净光合速率则明显增加，在穗期，ＩＲ２６接种叶片的＾１４Ｃ同化物累积率和运输到穗的百分率均高于金刚３０；ＩＲ２６与病叶相邻的健叶，＾１４Ｃ同化物输向接种病叶和穗的百分率高于金刚３０。这表明抗病品种ＩＲ２６接种病叶和健康叶片光合同化物对病菌侵染和产量损失的补偿作用较强，相反，金刚３０则不

Abstract:The photosynthesis of rice leaves of both resistant variety IR26 and susceptible variety Jingang 30 decreased when they were infected with Xanthomonas campestris pv. oryzae at jointing stage, but the photosynthesis of their adjacent healthy leaves increas

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