摘要
研究了不同浓度的剑叶金鸡菊地上部分水浸提液对几种种子和幼苗的化感作用。结果表明:剑叶金鸡菊地上部分水浸提液对剑叶金鸡菊的终萌发率有明显的抑制作用,对其它的抑制作用不明显;对白菜、胡萝卜、剑叶金鸡菊的发芽速率有明显的抑制;剑叶金鸡菊地上部分水浸提液除1%水平上对白菜苗高有促进作用,对白菜苗高、根长以及胡萝卜苗高、根长都有不同程度的抑制;剑叶金鸡菊水浸提液对胡萝卜鲜重、白菜饱和鲜重、白菜幼苗相对含水量等存在"低促高抑"现象;对白菜幼苗干重有不同程度的抑制。
Several kinds of seeds were used as the receptor to study the allelopathy of Coreopsis lanceolata L. in different aqueous extractS. The results showed that The finally germination of Coreopsis lanceolata L. was restrained obviously, but cabbage, carrot, Hollyhock,Coreopsis lanceolata L. Influence of aqueous extracts from Coreopsis lanceolata L. on the cabbage,carrot,Coreopsis lanceolata L. germination rates was obvious, Different concentration extracts restrained the growth of cabbage and carrot in some extends, except that the 1% accelerated the growth of cabbage＇s seeding height. The concentration of Coreopsis lanceolata L. exhibited allelopathic promotion at low concentration and allelopathic inhibition at high concentration on the Wf of carrot, at the same of the Wf,Wt,RWC of cabbage; Wd of cabbage was restrained in extends.
出处
《北方园艺》
CAS
北大核心
2010年第4期45-48,共4页
Northern Horticulture
基金
山东大学威海分校大学生科技创新资助项目(A09078)
关键词
剑叶金鸡菊
种子
浸提液
化感作用
Coreopsis lanceolata L.
seed
water extract
allelopathy
