连翘提取液对玉米种子萌发和幼苗生长的影响  

Effects of Extracts fromForsythia suspensa on Seed Germinition and Seeding Growth of Maize

作　　者：李莉[1] 金山[1] 铁军[1] 张燕燕 张靓 LI Li;JIN Shan;TIE Jun;ZHANG Yan-yan;ZHANG Liang(Department of Biological Sciences and Technology,Changzhi University,Changzhi,Shanxi 046011)

机构地区：[1]长治学院生物科学与技术系,山西长治046011

出　　处：《黑龙江农业科学》2017年第10期44-47,共4页Heilongjiang Agricultural Sciences

基　　金：山西省高校创新学科群项目子项目资助项目(XKQZXM200603);长治学院院级专项科研资助项目(JD201706);山西省"1331工程"重点学科建设经费资助项目

摘　　要：为有效降低连翘育苗过程中产生的连作障碍,采用室内生物测定法,比较了不同浓度的连翘提取液对3种玉米种子萌发和幼苗生长的影响。结果表明:连翘提取液对3种玉米种子均具有一定的化感效应,且存在品种差异。低浓度的连翘提取液对德育919和先玉696的种子发芽率与对照相比影响不显著(P>0.05),而对诚信1号则具有显著的抑制作用(P<0.05)。同时提取液对3种玉米幼苗根长、株高、鲜重均具有一定的化感作用,综合化感效应值显示,连翘提取液对诚信1号作用最强,德育919次之,先玉696相对较弱。三者比较,先玉696较适合作为连翘幼苗栽培的下茬植物。In order to effectively reduce the barrier of continuous cropping,effects of extracts from Forsythia suspensa on seed germinition and seeding growth of3kinds of maize were studied using indoor biometic method.The results showed that after treatment with extracts of Forsythia suspensa,germination rate of Deyu919and Xianyu696was showing no significant change at low concentrations(P>0.05),but Chengxin No.1was significantly inhibited(P<0.05).The extracts from Forsythia suspensa had allelopathic effects on root length,plant height and fresh weight of maize.According to the synthetic allelopathic effects,Chengxin No.1and Deyu919were stronger compared with Xianyu696.Therefore,Xianyu696is the best variety planting after Forsythia suspensa.

关 键 词：连翘提取液 化感作用 玉米 萌发 生长 

分 类 号：S513[农业科学—作物学] S567.19