沈阳农业大学学报Issue(1)：11-14,4.DOI:10.3969/j.issn.1000-1700.2014.01.003
月桂醇对黄瓜生长和抗霜霉病及其生理指标的影响
Effects of Dodecanol on Cucumber Growth and Resistance Downy Mildew (Pseudoperonospora cubensis) and Physiological Indices
摘要
Abstract
The cucumber downy mildew(Pseudoperonospora cubensis) was adopted as the experimental object. Cucumber seedlings were treated with six concentrations of dodecanol, 0.00 (CK), 0.05, 0.10, 0.50, 1.00 and 2.00 mmol·L-1, then tested the incidence of cucumber plants inoculated with Pseudoperonospora cubensis, cucumber seedling growth, physiological and biochemical indicators, in order to determine its effect on cucumber growth. The results of field investigation indicated that dodecanol enhanced the downy mildew disease resistance of cucumber at the concentrations of 0.05-1.00 mmol·L-1, the best effect was observed at 0.10 mmol·L-1,the incidence was only 44.44%, the disease index was 15.87, the disease control effect reached 63.53%. Dodecanol at low concentration promoted the cucumber stem height, stem diameter, fresh matter, root vigor, PAL activity, POD activity and PPO activity,at 0.10 mmol·L-1 it has the bigggest promotion. But it decreased proline content, relative electricity conductivity. Up to 0.1mmol·L-1, dodecanol presented the strongest inhibition .It was concluded that 0.10 mmol·L-1 treatment has the biggest allelopathic promtion.关键词
月桂醇/黄瓜/霜霉病/幼苗生长/抗性生理Key words
dodecanol/cucumber/downy mildew/seedling growth/resistance physiology分类
农业科技引用本文复制引用
周宝利,马兰香,李娜,富饶..月桂醇对黄瓜生长和抗霜霉病及其生理指标的影响[J].沈阳农业大学学报,2014,(1):11-14,4.基金项目
国家自然科学基金项目 （）
