矮壮素和多效唑对草地早熟禾草坪质量的影响

探讨了矮壮素和多效唑对草地早熟禾草坪质量的影响。结果表明，施用矮壮素延缓了草地早熟禾的生长速度，并且随着浓度的增加延缓作用随之加强。矮壮素减弱了草坪的抗商性，提高了整齐度，但对颜色有伤害作用。

Effects of Plant Growth Regulator on the Turf Quality of Kentucky Bluegrass

The effects of chlorocholine chloride(CCC) with different concentrations and of Paclobutrazol(PP333) with a certain concentration on the quality of Kentucky bluegrass turf which had been established for five years were studied in science garden of China agricultural university.It was showed that appling CCC can reduce the growth speed of kentucky bluegrass turf,decrease the disease resistance.As increasing of the CCC concentration,the growth rate decreased intensitively.Lower concentration of CCC can promote the tillering,increase underground biomass and improve the turf uniformity.Appling PP333 reduced turf growth speed,restrained tillering and accumulated underground biomass,decreased disease resistance,and had accumulated underground biomass,decreased disease resistance,and had a bad effect on turf greenness and turf uniformity.Using 100mg/kg CCC was better for Kentucky bluegrass turf.