S-3307和CCC对草地早熟禾的矮化效应

通过对新播草地早熟禾(Pca pratensis L.)草坪草叶面喷施植物生长调节剂的实验得出,浓度为75mg/L、l00mg/L、125mg屯的S-3307对“蓝鸟”、“橄榄球2号”和“公园”3个品种具有明显的矮化效果,还可以提高供试品种的叶绿素含量,增加草坪绿度,改善草坪质量。l00mg/L、200mg/L、300mg/L的CCC也具有一定的矮化效果,但不如S-3307的效果明显。在冷季型草坪草养护上,建议叶面喷施75mg/L～125mg/L的S-3307,以达到减少草坪刈剪次数,改善草坪质量,节约肥水,降低草坪养护成本的目的。

Dwarf Effects of S-3307 and CCC on Poa pratensis L.

By spraying S- 3307 and CCC at the concentration of 75mg/L, 100mg/L, and 125mg/L on leaves of 3 cool - season turfgrass varieties, Poa Pratensis L. "Blue Bird", "Rugbyll", and "Park", one can see that each variety was dwarfed dramatically. Moreover, S - 3307 increases the chlorophyll content of all varieties and thus made the turfgrass looked greener, while CCC of 100mg/L, 200mg/L, and 300 mg/L dwarfed the grass, though less dramatically compared with those of S - 3307.It is suggested that Poa Pratensis L. should be sprayed with S- 3307 of 75 - 125mg/L to improve the turfgrass quality, decrease the mow times, irrigation quantity, and management cost as well.