两种一枝黄花属植物化感作用的初步研究

PRIMARY STUDY ON ALLELOPATHY EFFECT TO TWO SPECIES OF SOLIDAGO

本研究测定了加拿大一枝黄花和本地一枝黄花新鲜茎叶的水浸液对本地植物的化感作用,分析了两种一枝黄花不同浓度浸提液对绿豆、花菜、萝卜、莴苣、小麦幼根生长的影响。试验结果表明:在相同水浸液浓度下,加拿大一枝黄花对本地植物的化感抑制作用均强于本地一枝黄花,且随着水浸液浓度的升高,加拿大一枝黄花对受体植物的抑制作用明显增强。

A preliminary study assessed the allelopathy of different aqueous extracts of Solidago canadensis L. and Solidago decurrens Lout. aerial part on the root growth of Phaseolus radiatus L. , Brassica oleracea vat. botrytis, Raphanus sativus L. . , Lactuce indica and Triticurrt aestivum. The resuit showed that Solidago canadensis L. suppressed the root growth of all crops more serious than Solidago decurrens Lout. under the same concentration. And with the increasion of the concentration, Solidago canadensis L. enhanced its inhibition on the tested crops evidently.