南美蟛蜞菊对几种经济作物的生化他感作用  

The Allelopathy of the Water Extract from Wedelia Trilobata on Several Economic Crops

作　　者：陈贤兴[1] 丁炳扬[1] 沈夕良 何献武 

机构地区：[1]温州大学生命与环境科学学院,浙江温州3250027 [2]温州出入境检验检疫局,浙江温州325027

出　　处：《甘肃科学学报》2005年第4期15-17,共3页Journal of Gansu Sciences

基　　金：温州市科委科研基金项目(S2004A015)

摘　　要：研究了外来植物南美蟛蜞菊(W ed elia trilobata(L.)A.S.H itche)茎叶水浸提液对绿豆(V igna rad iata L inn.)、萝卜(R aphaus sativusL inn.)、青菜(B rassica ch inensisL inn.)等经济作物的生化他感作用.结果表明,南美蟛蜞菊的茎叶水提液对几种供试植物种子的发芽指数、萌发率及幼苗的苗高和根长均有不同程度的抑制作用.The allelopathy of the water extract from Wedelia trilobata（L. ）A. S. Hitche stems and leaves was studied on several economic crops （Vigna radiata Linn. , Raphaus sativus Linn. , Brassica chinensis Linn. ）. The results showed that the water extract from Wedelia trilobata stems and leaves had different inhibitory effects on the above test crops in the percentage of their seed germination, the indexes of their seed-sprouting speed, and the growth of the roots and shoots of the seedlings.

关 键 词：南美蟛蜞菊 生化他感作用 经济作物 外来植物 

分 类 号：S476[农业科学—农业昆虫与害虫防治]