坪用草地早熟禾品种耐盐性的比较研究

Study on Salt Endurance Of Turf Type Poa Pratensis Varieties

以6个坪用草地早熟禾品种为试验材料,从耐盐系数、活力指数相对下降率和电解质外渗率作为指标,比较研究了它们的耐盐性。结果表明:6个草地早熟禾品种中,优异和阿龙的耐盐性最强,自由神和福瑞登次之,当恩和亨特最差;通过试验还发现,以耐盐系数作为评定草地早熟禾耐盐性优劣的一项指标具有一定的可行性。

The salt endurance on six turf type Poa Pratensis varieties were compared and studied by using coefficient of salt endurance ,relatively descendingrate of vigor index and electrolyte osmotic ratio as index.The results showed that salt endurance of these varidties had conspicuous difference .Among them,Merit and Bron′s salt resistance were the strongest,Liberty and Freedom were second,and Dawn and Huntsville were the weakest.Moreover,it was also discovered that using coeffictent of salt endurance as an index of evaluating Poa Pratensis salt endurance had a certain feasibility.