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两个品种的重瓣玉簪经甲哌啶（ＤＰＣ）和多效唑（ＰＰ（３３３））喷施后，植株株型、相对生长及某些生理指标发生了显著的变化。低浓度ＤＰＣ（２～６ｍｇ／Ｌ）和ＰＰ（３３３）（５０～２００ｍｇ／Ｌ）使植株比叶重（叶重／叶面积）和比质重（叶重／单株干重）提高，而使叶面比重（叶面积／单株干重）下降。叶片净光合作用和叶绿素含量经两种低浓度药剂处理后也有明显提高。表明低浓度ＤＰＣ和ＰＰ（３３３）能通过改变植株株型来提高花卉的观赏价值。但玉簪植株经高浓度ＤＰＣ（６～１０ｍｇ／Ｌ）和ＰＰ（３３３）（２００～５００ｍｇ／Ｌ）处理后，其生长受到明显抑制，净光合速率下降，并出现轻度的毒害症状
The plant type, relative growth and some physiological indexes of two varieties of Hosta were changed after they were sprayed with DDP and PP (333). Low specific DPC (2 ~ 6mg / L) and PP (333) (50 ~ 200mg / L) increased specific leaf weight (leaf weight / leaf area) and specific weight (leaf weight per plant dry weight) The leaf specific gravity (leaf area / dry weight per plant) decreased. Leaf net photosynthesis and chlorophyll content after two kinds of low-concentration agents also significantly improved. The results showed that the low concentration of DPC and PP (333) can improve the ornamental value of flowers by changing plant type. However, the growth of Hosta was inhibited by high concentration of DPC (6-10 mg / L) and PP (333) (200-500 mg / L), and the net photosynthetic rate decreased and mild toxicity