摘要
以"保加利亚尖椒"、"948辣椒"、"茄门甜椒"3个辣椒品种为试材,采用水培方式,从根系气体环境、温度(15、20、25、30℃)、光照强度(0、60、117μmol·m-2·s-1)和收集时间(1、2、3、4、5、6h)4个方面研究了适合辣椒根系分泌物活体收集的方法;同时,以黄瓜幼苗为受体,对在该条件下收集的根系分泌液的化感作用进行了验证。结果表明:在通气条件下,温度为20℃,光照强度为117μmol·m-2·s-1,收集时间为3h的辣椒根系分泌物收集量最大;辣椒根系分泌液对黄瓜幼苗生长的影响符合化感物质"低促高抑"的趋势;该收集方法可以作为辣椒根系分泌物活体的收集方法。
With three peppers as materials, using hydroponic method, from four aspects which were gas environment, temperature（15,20, 25,30℃）, light intensity （0, 60,117 μmol·m^-2·s^-1 ）, and collection time （1,2,3,4,5,6 h）, collection method of collecting pepper root exudates were studied in pepper root. Meanwhile,as cucumber seedlings as receptor,allelopathy test of pepper root exudates that gathered by this method were conducted. The result showed that, at ventilation conditions,when the temperature was 20℃ ,light intensity was 117 μmol·m^-2·s^-1 and collection time was 3 h,the amount of pepper root exndates were the most. Allelopathy of pepper root exudates on seedlings growth of cucumber manifested that low concentrations promoted and high concentrations inhibited. Therefore, this collection method could be used as a method of collecting root exudates of pepper.
出处
《北方园艺》
CAS
北大核心
2014年第12期14-17,共4页
Northern Horticulture
基金
国家公益性行业(农业)科研专项经费资助项目(201103001)
山东省现代农业产业技术体系蔬菜创新团队资助项目(SDAIT-02-022-06)
青岛市科技计划发展项目公共领域科技支撑计划(农业科技)资助项目(12-1-3-22-nsh)
