对94份甜高粱种质资源在发芽期进行耐盐性鉴定.结果表明,随着盐浓度的升高,发芽率呈现出下降趋势.不同品种(系)间的耐盐能力存在明显差异,按盐害百分率分级,1级品种(相对盐害率<20%)5份,3级品种(相对盐害率20%~40%)17份,5级品种(相对盐害率40%~60%)36份,7级品种(相对盐害率60%~80%)15份,9级品种(相对盐害率≥80%)21份.其中芽期耐盐性强(耐盐级别3级以上)的高粱品种22份,占供试材料的23.40%.%Seed germination of 94 sweet sorghum cultivars were investigated through simulating salt stress at different salinity levels. The results indicated that with the increasing of salinity,all materials showed a decrease to various extents in germination rate and germination potential. The salt tolerance of different cultivars was obviously different. The 94 sorghum varieties were classified based on relative salt - injury rate. Five of them were fallen into the first - level tolerance, while 17 into the third - level tolerance, 36 into the fifth - level tolerance, 15 into the seventh - level tolerance, and 21 into the ninth - level tolerance. There were 22 varieties with high salt tolerance, whose relative salt - injury rate was less than 40%.
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机译:Germination and Expression of α-Amylase of KF0680-1 and KF0680-2 (Cultivars of Sweet Sorghum) under Salt Stress盐胁迫条件下甜高粱品种KF0680-1和KF0680-2的萌发及其α-淀粉酶表达研究