以34份青稞品种(系)种子为材料,通过测定发芽势、发芽率、发芽指数等指标进行芽期的耐盐性鉴定,并应用主成分分析、隶属函数法等方法对青稞材料进行了多指标耐盐性综合评价。结果表明:耐盐性较强的材料是XQ0478、白玉青稞、XQ0792、XQ0198和N4-1等;耐盐性相对较弱的材料有矮黑六、矮六密、9718和9803-2。用综合指标值(D)进行聚类分析,可将34份青稞品种(系)聚为三类:A类的青稞材料有8份,其D0.5,代表耐盐性较强的品种(系);B类的青稞材料有4份,其D0.3,代表耐盐性较敏感的品种(系);C类的青稞材料有22份,其0.3≤D≤0.5,为中度耐盐性品种(系)。
This study aims to evaluate salt tolerance of 34 hulless barley cultivars according to indexes of germina-tion including germinative force ,germination rate ,germination index ,germination vigor .Correlation analysis and princi-pal component analysis indicated that cultivars of XQ 0478 ,Baiyuqingke ,XQ0792 ,XQ0198 ,and N4-1had higher salt tolerance ,while Aiheiliu ,Aliumi ,9718 and 9803-2 showed lower tolerance .According to synthetic evaluation value (D) ,the 34 cultivars were clustered into three groups :Group A ,D value>0 .5 ,eight cultivars ;Group B ,D<0 .3 , four cultivars ;and Group C , D value between 0 .3 and 0 .5 ,the remaining 22 cultivars with medium salt tolerance .