孔雀草、盐肤木对紫花苜蓿的化感效应研究

The Allelopathy Research on Medicago Sativa Resulting from Tagetes patula and Rhus chinensis

通过种子萌发和幼苗生长试验,研究了孔雀草、盐肤木2种植物的叶、茎、根水浸提液对紫花苜蓿的化感作用,结果表明:孔雀草、盐肤木不同部位的水浸提液对紫花苜蓿的种子萌发和幼苗生长均有抑制作用,且浓度越大作用越明显。说明紫花苜蓿和孔雀草不宜混播;盐肤木作为灌木和紫花苜蓿混植,只要种植密度适当,是可行的。可为生态护坡的植物选择提供参考。

This article conducted seed germination and growth experiments to research the effects of allelopathy,resulting from the water extract of leaf,stem and root of two plants Tagetes Patula and Rhus chinensis.The results showed that the water extract from different parts of two kinds of local plants all had inhibitory action to seed germination and growth of Medicago sativa,moreover the concentration of water extract higher,the effect of allelopathy was more obvious.Rhus chinensis and Medicago sativa should not be mixed for sowing;Rhus chinensis planted with the mix of shrubs and Medicago sativa was feasible as long as the planting density was appropriate.It provided a reference for the ecological slope protection plant selection.