论文部分内容阅读
在干旱区的硫酸盐型土壤上 ,采用田间小区试验法 ,对 2 8个冷季型草坪草品种的耐盐性进行比较。草坪型黑麦草品种间的耐盐性差异不显著 ,耐盐性最强 ;草坪型高羊茅品种次之 ;紫羊茅品种普通的耐盐性较“派尼”强 ;草地早熟禾品种“公园”、“橄榄球 2号”、“亨特”相对较耐盐。参试种幼苗的耐盐性次序为草坪型高羊茅、细弱翦股颖 <草坪型黑麦草 <匍匐紫羊茅 <草地早熟禾 <硬羊茅。以出苗率、保苗率和空隙率为指标 ,综合评价 2 8个草坪草品种的耐盐性 :佳丽 2号、三 A、高帽、凌志、贝克、未来 2 0 0 0 E、爱神特、博士的耐盐性最强 ;美洲虎3号、矮星 2号、小野马、飞思达 2号、猎狗 5号、交战 2号次之 ;橄榄球 2号、公羊 1号、亨特、美洲王、普通、高地、派尼、公园再次 ;康尼、优异、斯巴达、纳苏、抢手股、肯塔基最差。
In the sulphate soil of arid area, the salt tolerance of 28 cold-season turfgrass varieties was compared by field plot test. There was no significant difference in salt tolerance among lawn-type ryegrass varieties, but the salt tolerance was the strongest among them; the lawn-type tall fescue was the second; Park, Rugby 2 and Hunter are relatively salt-tolerant. The order of the salt tolerance of the seedlings was turfgrasses of the lawn type, the lawn-type ryegrass fescue. The seedling emergence rate, seedling protection rate and porosity were used as indexes to evaluate the salt tolerance of 28 turfgrass varieties: Benevolence 2, A 3, Cap, Lexus, Baker, Future 2 0 0 E, Dr. salt the strongest; Jaguar 3, Dwarf 2, Onyx, flying Star 2, Hound 5, second war on the 2nd; Rugby 2, the Rams 1, Hunter, the Americas King , Ordinary, Highland, Paine, Park again; Coney, Outstanding, Sparta, Nasu, Grabs, Kentucky Worst.