马铃薯连作对茄科作物的化感效应  

Alleopathic Effect of Potato Continuous Cropping on Solanaceae

作　　者：杜茜[1] 童娟 卢迪[3] 

机构地区：[1]北方民族大学生物科学与工程学院,宁夏银川750021 [2]宁夏农业勘测设计院,宁夏银川750021 [3]宁夏大学农学院,宁夏银川750021

出　　处：《北方园艺》2012年第20期1-4,共4页Northern Horticulture

基　　金：国家自然科学基金资助项目(31160104);宁夏自然科学基金资助项目(NZ0956)

摘　　要：以"陇薯1号"马铃薯为试材,研究了马铃薯秸秆、连作土壤浸提液对番茄、茄子、辣椒等马铃薯同科植物的化感作用。结果表明:马铃薯秸秆水浸提液对番茄、茄子的发芽率以及3种植物的发芽指数和胚根长均有抑制作用;对辣椒的发芽率和3种植物胚芽长随浸提液浓度的升高表现出高浓度抑制低浓度促进的现象。连作土壤浸提液抑制3种植物的发芽率及发芽指数,促进番茄和辣椒胚芽生长,3种植物胚根及茄子胚芽随着连作土壤浸提液浓度的增加呈先升高后降低的趋势。马铃薯秸秆水浸提液和连作土壤水浸提液均对3种茄科作物具有化感作用,且对发芽率、发芽指数、胚根长和胚芽长具有一定浓度效应。Taking ＇Longshu No.1＇ as test materials,potato stalk and soil water leach liquor were used,the allelopathic effect of potato continuous cropping on Solanaceae（tomato,eggplant and pepper） were studied.The results showed that the potato stalk water leach liquor inhibited germination and germination index of the three species.Peppers germinating capacities and the germ length of three species with liquor concentration increases showed a phenomenon of high levels inhibiting and low concentration promoting.Soil leach liquor inhibited the three species germination rate and germination index,but promoted the tomatoes and peppers germ growth.Potato stalk and soil water leach liquor both had allelopathy on three Solanaceae crops germination rate,germination index,radicle length and germ length,and also had certain concentration effect.

关 键 词：马铃薯 连作 化感效应 茄科作物 水浸液 发芽 

分 类 号：S532[农业科学—作物学]