多效唑对绿萝的生理学效应研究

Studies on physiological effects of paclobutrazol on Scindapsus aureus

采用多效唑溶液处理观叶植物绿萝 ,可使绿萝植株矮化、紧凑、美观 ,徒长现象得到有效地抑制 多效唑降低了绿萝叶片的生长量 ,但在叶柄累积了淀粉粒 虽抑制了叶绿体的发育 ,但同时提高了叶片叶绿素含量和降低了气孔阻力 ,使光合速率和光合

Scindapsus aureus potted plants were treated with growth retardant paclobutrazol aqueous solution. After treatment , they exhibited dwarf , compact form and better performance. Meanwhile vegetative growth of S.aureus was significantly inhibited. Paclobutrazol treatment reduced fresh and dry weight of S.aureus leaves , but caused the petioles to accumulate starch grain. Paclobutrazol treatment inhibited the development of cholroplast. Additionally, it improved chlorophyll content and lowered stomatal resistance ; thus it increased photosynthetic rate and the ratio of photosynthetic rate to respiratory rate.