核桃醌对黄芩种子萌发和幼苗生长的影响

Allelopathic Effects of Juglone on Seed Germination and Seedling Growth of Scutellaria Baicalensis

为探讨核桃和黄芩复合种植的可行性,此文通过室内盆栽试验的方法研究了核桃主要化感物质核桃醌溶液对黄芩种子萌发及幼苗生长的影响。试验结果表明:核桃醌对黄芩种子的萌发主要表现出抑制作用,随着浓度的升高,抑制作用逐渐增强;对幼苗生长的影响则受到核桃醌浓度和黄芩幼苗密度双因素的影响,在高浓度或高密度下表现出较强的抑制作用,在低浓度高密度下则表现出一定程度的促进作用,但此促进作用主要针对地上部分生物量,对具有较高药用价值的根部则表现出强烈的抑制作用,因此该文认为核桃和黄芩并不适宜采用林药复合种植模式。

In order to research the possibility of compound planting in Walnut andScutellaria Baicalensis , the influence of Juglone on the seed germination and seedlings growth ofBaicalensis were measured, which is the primary allelochemics in Walnut. The results showed that the Juglone had inhibited effects on the seed germination, which gradually increased along the concentrations. The influence on seedlings growth of Baicalensis was affected by the Juglone concentrations and seedlings density, which showed stronger inhibition in the high concentrations or density while advanced in low concentration and high density. The advanced action was mainly about the overground biomass, whereas the inhibition was discovered in the root of high medicinal value. So in the paper, Walnut andBaicalensis were not adapted to the complex model of forest and herbal medicine.