摘要
以浓度为0.6%、0.9%、1.2%、1.5%和1.8%的复盐(71%NaCl,3%CaCl2,4%MgSO4,22%K2SO4)溶液培养种子和幼苗,根据初始萌发时间、单株重量、发芽率下降百分比、发芽指数、活力指数、平均发芽速度、相对发芽率、相对发芽势和耐盐指数9个指标,应用隶属函数法,确定7种禾本科牧草种苗期耐盐能力之序为:苇状羊茅>高冰草>星星草>冷地早熟禾>野大麦>蒙古冰草>披碱草。
Salt tolerance of 7 Gramineous pastures during germination and seedlings has been studied with 0.6%,0.9%,1.2%, 1.5% and 1.8% mixed salt solution （71%NaCl, 3%CaCl2,4%MgSO4,22%K2SO4）. The membership function was applied according to the germinating stage, germination rate, seedling height and root length, germination trend, seed vigor etc.The results showed that the salt tolerance ability among 7 plants was in order of Festuca. arundinacea〉Agropyron elongatum〉Puccinellia tenuiflora〉 Poa crymophila〉Horcleum brevisubulatum〉Agropyron morgolicum〉Elymus duhuricas.
出处
《内蒙古农业科技》
2012年第3期42-42,72,共2页
Inner Mongolia Agricultural Science and Technology
基金
中央级公益性科研院所基本科研业务费专项"内蒙古农牧交错区人工草地可持续利用模式技术研究"(1610332011015)
关键词
禾本科牧草
发芽率
活力指数
耐盐性
隶属函数
Gramineous pastures
Germination rate
Vigor index
Salt tolerance
Membership function
