栽培大豆与野生大豆超亲杂交后代耐盐机理分析

Salt-tolerant Mechanism of “3060”which is Exceeding-Parents hybrid progeny of cultivated bean (Glycine max) and wild bean (Glycine soja)was studied from seed germination rating, seedling emergence rating, dry accumulation, ion absorption and distribution et al. The result showed :（1）The seed germination rating, seedling emergence rationg, dry accumulation of 3060 were higher than those of it parents, while the increase of electrolytic leakage of it was lower under salt stress.. 3060 recovered better after releasing from the stress. (2) 3060 absorbed less Na+,Cl- from medium , and there was lower Na+ and higher K+ content in in xylem sap of 3060 under salt stress. (3) More Na+ and Cl- accumulated in the roots and stems, less in the leaf ,but the content of K+ is very large and the value of K+/Na+ is very high in the leaves under salt stress.