花生品种萌发期耐盐性比较鉴定

Identification of Salt Tolerance in Germination Period of Peanut Varieties

以28份花生品种（系）为供试材料，采用水培方法，研究了不同盐浓度下花生种子萌发特性。结果表明：不同盐浓度、不同花生品种种子萌发特性不同，随盐浓度的升高，花生种子盐害率增加，发芽势、相对发芽指数降低；同时依据不同盐浓度下花生品种耐盐性及其相关萌发指标差异，确定0．5％～0．7％盐浓度可作为花生品种萌发期耐盐性筛选鉴定的适宜浓度。通过聚类分析方法可将花生品种耐盐性分为四类，其中高度耐盐型品种6个，分别为花育25、花育36、365—2、海花1号、豫花9号和花育28。高度敏感型品种3个，分别为花育33、白沙1016和粤油85。

With seeds of 28 peanut varieties （lines） as material, hydroponic experiment was car- ried out to study the relationship between character of seed germination and salt stress. The results showed： As the salt concentration increased, the rate of salt injury in peanut seeds increased, the ger- mination energy index and the germinability reduced. According to the percentage figure of peanut salt resistance on different salt concentrations, the optimal concentration for evaluating salinity tolerance between 0.5% and 0.7% was suitable. Peanut varieties salt resistance was divided into 4 categories through the cluster analysis. 6 varieties were with high salt tolerance： Huayu25, Huayu36, 365--2, Haihual, Yuhua9 and Huayu28 respectively. 3 varieties were highly sensitive： Huayu33, Baishal016 and Yueyou85 respectively.