用剥蘖分株法和营养液循环培养技术比较了一分离群体在中度盐胁迫和对照条件下１２种农艺性状的变异特点。主要结果：（１）处理和对照各性状的分蘖株系间变异均显著大于分蘖系内变异；（２）不同性状的盐敏感程度存在广泛变异，大多数性状的表型反应主要为盐处理王效应；（３）盐胁迫有增大农艺性状遗传变异的趋势，对遗传率的影响则因性状而异。研究认为，分蘖株系法适用于耐盐性等复杂性状的鉴定；存在主基因效应的性状受盐胁迫影响较小，其耐盐性度量效果较差；耐盐基因存在效应大小的分化。 The characteristics of 12 agronomic traits of one isolated population under moderate salt stress and control conditions were compared using the method of stripping stalk ramets and nutrient solution cycling culture. The main results were as follows: (1) The variation of tillers in all traits and treatments were significantly greater than those in tillers. (2) There was a wide range of variation in the salt sensitivity of different traits. The phenotypic responses of most traits were mainly salt treatment Effect; (3) Salt stress has the tendency to increase the genetic variation of agronomic traits, and the effect on heritability will vary with the traits. It is concluded that the tillering line method is suitable for the identification of complex traits such as salt tolerance. The characters of major gene effects are less affected by salt stress and the salinity tolerance is poor, and the salt-tolerant genes are differentiated by effect size.