几种多花黑麦草与紫花苜蓿品种的化感作用研究  

Allelopathy of Several Lolium multifolorum and Medicago sativa L

作　　者：高承芳[1] 张晓佩[1] 李文杨[1] 董晓宁[1] 

机构地区：[1]福建省农业科学院畜牧兽医研究所,福州350013

出　　处：《中国农学通报》2011年第20期24-28,共5页Chinese Agricultural Science Bulletin

基　　金：福建省科技计划项目"亚热带丘陵红壤区优良牧草引种试验研究"(2010R1025-7)

摘　　要：对3个多花黑麦草与2个紫花苜蓿品种的茎、叶和根的水浸提液化感作用进行了研究分析,结果表明:3种多花黑麦草与2种紫花苜蓿品种对受体‘赛迪7’有一定的化感影响,对‘赛迪7’的种子发芽都有抑制作用;多花黑麦草Barextra和Barmega2个品种的根、茎、叶水浸提液对‘赛迪7’的苗高、根长及生物量的积累都存在低促高抑的化感作用;供体不同部位化感作用不同;紫花苜蓿2个品种茎的水浸提液在3种浓度下均对‘赛迪7’的根长有促进作用,对苗高有抑制作用。The allelopathy of several Lolium multifolorum and Medicago sativa L was studied in the paper, and the acceptor was ‘ Sardi 7 ’ seed. The results indicated that the aqueous extracts from roots, stems and leaves restrained the seed germination of ‘ Sardi 7 ’ ; The aqueous extracts of Lolium multifolorum Barextra and Barmega had allelopathy on the seeding height, root length and biomass of ‘ Sardi 7 ’ , and there was inhibition effect at higher concentration and there was the enhancement effect at lower concentration; The allelopathy of the different tissue was not the same; The extracts from stems of Medicago sativa L with the 3 different concentration had increased effecting on the root length of ‘ Sardi 7 ’ , but restrained on the seeding height.

关 键 词：多花黑麦草 紫花苜蓿 化感作用 '赛迪7’ 

分 类 号：S544.9[农业科学—作物学]