二十八个冷季型草坪草品种的耐盐性比较

在干旱区的硫酸盐型土壤上，采用田间小区试验法，对28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，细弱剪股颖＜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28个草坪草品种的耐盐性，佳丽2号，三A，高帽，凌志，贝克，未来2000E，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，齿塔基最差。

A comparison on salt tolerance of 28 breeds of cold type lawn grass

Twenty-eight breeds of cold type lawn grass in field of sulphate soil in arid zone were compared. The salt tolerance of breeds of Lolium perenne L. was similar. They powerfully tolerated to salt soil. The breeds of Festuca arundinacea Schreb. were the second. The "Common" was more salt tolerant than the "Pernille". The breeds "Rugby 2", "Huntsville", "Park" of Poa pratensis L. had relatively salt tolerant.The grade of salt tolerance of lawn grass was Lolium perenne L., Festuca arundinacea Schreb, Festuca rubra L., Poa pratensis L. and Agrostis tenuis Sibth, Festuca ovina var. durivscula L. Successively.