中文摘要：

一个活跃过程为植物幸存和复制是必要的叶老朽。然而，早熟的衰老对农业生产有害。在这研究，米饭异种，作为从对待他们的 Jinhui 10 孤立的 psl3 (presescing 叶 3 ) 说出，在词法、生理的水平两个都显示明显的早熟的衰老特征。基因分析证明那个变异的特点被单个主导的基因(PSL3 ) 控制，它与 53.5 kb 的间隔位于在 SSR 标记 c7sr1 和 InDel 标记 ID10 之间的米饭染色体 7。结果可能为 PSL3 基因的隔离是有用的。

英文摘要：

Leaf senescence as an active process is essential for plant survival and reproduction. However, premature senility is harmful to agricultural production. In this study, a rice mutant, named as psl3 （presescing leaf 3） isolated from EMS-treated Jinhui 10, displays obvious premature senility features both in morphological and physiological level. Genetic analysis showed that mutant trait was controlled by a single dominant gene （PSL3）, which was located on rice chromosome 7 between SSR marker c7sr1 and InDel marker ID10 with an interval of 53.5 kb. The result may be useful for the isolation of the PSL3 gene.