施肥、修剪等措施对凹叶厚朴中厚朴酚、和厚朴酚含量累积的影响

Effects of Fertilization,Pruning,Girdling and Iron Bundling on the Accumulation of Magnolo and Honoikol in Magnolia officinalis subsp. biloba.

目的:提高凹叶厚朴的品质,缩短生产周期,为凹叶厚朴种植提供科学参考依据。方法:本次实验通过采用施肥、修枝、环割、铁丝环扎对凹叶厚朴进行处理,采用HPLC测定两年后厚朴中厚朴酚、和厚朴酚的含量,计算总酚含量增长率。结果:凹叶厚朴中总酚含量累积增长(Y)与肥料中的氮肥、磷肥正相关,与钾肥负相关,回归方程为:Y=1.804+2.470N+2.746P-15.616K(r=0.982)。修枝处理的凹叶厚朴中总酚的含量较前期增长了310%,环割处理的凹叶厚朴中总酚的含量较前期增加了125.65%,铁丝环扎处理的凹叶厚朴中总酚的含量较前期增加了343.2%,而同期的空白组中凹叶厚朴中总酚的含量较前期增加了84.62%。实验结果显示不同栽培措施的效果由大到小的顺序是:铁丝环扎>修枝>环割。结论:凹叶厚朴中厚朴酚、和厚朴酚含量的积累可以通过改变土壤的肥力、环割、修枝等栽培措施得以提高。

Objective： To improve the quality of Magnolia officinalis subsp, biloba, and shorten the growth circle of it. Methods： After Magnolia officinalis subsp, biloba was suffered fertilization, pruning, girdling and iron bundling respectively, the content of magnolo and honokiol in it were measured by HPLC. Results： The accumulation of magnolo and honokiol were correlation proportionally with nitrogen and relationshi Pwith potassic fertilizer. After pruning, girdling and iron bundling raised by 310%, 125 fertilization, pruning, phosphatic fertilizer, but were negative , the amount of magnolo and honokiol were 125.65% and 343.2% ,comparing to the control sample. Conclusion： The cultivation measures of girdling and iron bundling can be taken to raise the amount of magnolo and honokiol in Magnolia officinalis subsp, biloba.