在NaCl胁迫下羊草幼苗生理反应及外源钙的缓解效应  

A Study of one Responses of the Seedling of Leymus chinensis and Ca2+ Action Under Different Treatments of NaCl

作　　者：王萍[1] 周天[2] 

机构地区：[1]东北师范大学国家草地生态工程实验室,长春130024 [2]长春师范学院生物系,长春130032

出　　处：《草地学报》1998年第1期20-25,共6页Acta Agrestia Sinica

摘　　要：在不同浓度NaCl营养液模拟的土壤盐化胁迫条件下，研究盐分对羊草的生理和代谢反应，结果表明，羊草对Na＋胁迫的适应方式以耐胁性为主，通过吸收无机离子和积累脯氨酸进行渗透调节。在Na＋胁迫基础上进行钙处理，结果表明外源钙对Na＋危害有一定的缓解效应。可为今后治理盐碱化草场提供新的途径。The physiological responses of the leaves of bo chinensis under NaCl+ stress andmitigating action of Ca to NaCl stass were studied. The asults show tha L. chinensis adopted to salin-ization drinly by toleance to Na+ as increase of Na+ as increase of proline for permeability regulation.Under salt stress condition, the external souroe of Ca2+ could increase of chlorophyle content of the leavesand incna of photosyntheisis, which mitigated Na+ stress.

关 键 词：NACL胁迫 渗透调节 钙处理 羊草幼苗 

分 类 号：S812.2[农业科学—草业科学]