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[目的]为提高辽藁本的产量与质量。[方法]研究了不同浓度(100、200、300、400 mg/L)多效唑对辽藁本的生长、药材产量、产量构成因素及药材挥发油含量的影响。[结果]多效唑对辽藁本有明显的矮化增粗效应,以浓度为400 mg/L的效果最为明显,其次为300mg/L;随着多效唑浓度的升高,辽藁本的叶面积指数和叶绿素含量呈现降低趋势;100、400 mg/L的多效唑控制辽藁本花量的效果较好;多效唑浓度为100～300 mg/L时,可提高辽藁本的产量,有助于挥发油的积累。[结论]多效唑浓度为300mg/L时,有利于辽藁本的生长,可提高辽藁本的产量,有助于挥发油的积累。
[Objective] To improve the yield and quality of Liao Tung Ben. [Method] The effects of paclobutrazol (100, 200, 300 and 400 mg / L) with different concentrations on the growth, medicinal yield, yield components and the volatile oil content were studied. [Result] Paclobutrazol had obvious dwarfing and thickening effect on Liao Tiao, the effect was most obvious at the concentration of 400 mg / L, followed by 300 mg / L. With the increase of paclobutrazol concentration, the leaf area index And chlorophyll content tended to decrease. The effect of 100, 400 mg / L paclobutrazol on controlling the flowering of Liaozhu was better. When the concentration of paclobutrazol was 100-300 mg / L, the yield of Lolium perenne could be increased and the yield of volatile oil accumulation. [Conclusion] The concentration of paclobutrazol at 300 mg / L was favorable to the growth of Liao Tzapen and could increase the yield of Liao Tiao Ben, which was helpful to the accumulation of volatile oil.