华重楼种子外种皮的化感作用研究

Allelopathy Effect of Seeds Testa of Paris polyphylla Smith var. chinensis

本文从化感作用的研究指标IR值(Inhibitory rate)研究了华重楼种子外种皮水提液对青菜、榨菜和白菜种子萌发和幼苗生长的影响。结果表明,华重楼种子外种皮的水提液对青菜、榨菜和白菜3种植物种子的萌发以及幼苗生长都具有明显地抑制作用,其化感作用抑制率IR值均为负值。

In this paper,taking allelopathy IR index value（Inhibitory rate） as standards,the effects of the water extracts of testa of Paris polyphylla Smith var.chinensis seeds on cabbage,mustard and rape seed germination and seedling growth were studied.The results showed that the water extracts of Paris polyphylla Smith var.chinensis seeds testa had signifcantly inhibitory effect on three plants of cabbage,mustard and rape seed germination and seedlings growth,and its allelopathic inhibition rate IR was negative.