土壤水分、淹水深度与盖土厚度对抗药性耳叶水苋种子出苗的影响  

Effect of Soil Moisture,Submersion Depth and Soil Thickness on Seed Germination of Herbicide Resistant Ammannia arenaria

作　　者：朱金文[1] 董祺瑞 刘冰[3] 卢凌虹[4] 周杰[5] 刘晨[5] 张利阳[5] 黄映中 

机构地区：[1]浙江大学农业与生物技术学院,浙江杭州310029 [2]防化指挥工程学院浙江熏蒸消毒研究所,浙江宁波315899 [3]东北农业大学农学院,黑龙江哈尔滨150030 [4]台州出入境检验检疫局,浙江台州318000 [5]中国计量学院生命科学学院,浙江杭州310018

出　　处：《杂草科学》2014年第1期39-41,共3页Weed Science

基　　金：国家自然科学基金(编号:31171863);国家公益性行业(农业)科研专项(编号:201303031;201303022);国家科技基础性工作专项(编号:2013FY113200);浙江省出入境检验检疫局项目(编号:ZK201324)

摘　　要：在智能温室内采用盆栽试验方法，研究土壤含水量、淹水深度及盖土厚度对抗苄嘧磺隆和敏感耳叶水苋（ Ammannia arenaria）生物型种子出苗的影响。结果表明，2种耳叶水苋生物型种子在土壤含水量15％以下不能出苗，在含水量25％～40％条件下出苗率较高，可达77．9％～91．1％。耳叶水苋的种子对淹水环境具有较强的适应能力，在0．2～6．4 cm水层下均可以正常萌发，但水下的耳叶水苋幼苗不能长高，萌发后60 d也不会腐烂死亡。Pot experiments were conducted at an automatic greenhouse to determine the effects of soil moisture ,submersion depth and soil depth on seed germination of bensulfuron -methyl resistant and susceptible Ammannia arenaria.Neither biotype germinated when the soil moisture content was under 15%but the germination rate could reach 77.9%~91.1%when soil moisture was between 25%~40%.A.arenaria seeds had strong adaptability to submersion being able to ger-minate when submersed at depths between 0.2~6.4 cm.However,young seedlings growing under water failed to grow higher although they did not rot or die even 60 days after germination .

关 键 词：耳叶水苋 出苗 土壤含水量 淹水深度 盖土厚度 

分 类 号：Q948.11[生物学—植物学]