摘要
研究了三叶期前的不同阶段水稻幼苗在遭受低温伤容时，共体内抗寒物质含量的变化，提出了不同阶段耐寒性不同的生理机制．
This essay discussed the variation of the cold - resistant substance content in rice seedling attackcd by low climate at the different stages before its three-leaf perlod, and proposed the physiological mechanism of cold-resistance on rice seeding at different stages.
关键词
水稻
幼苗
淀粉酶
酶活性
脯氨酸
抗寒生理
Rice seedling Activity of amylase Proline Soluble carbohydrate
