摘要
[目的]探究不同条件下马齿苋石油醚提取物对玉米蚜的拒食活性。[方法]采用单因素试验和正交试验，研究不同浓度、温度和时间条件下马齿苋提取物对玉米蚜的拒食率。[结果]提取物浓度为100 mg／mL、温度为25℃、时间为48 h时马齿苋提取物对玉米蚜的拒食活性最高。提取物浓度对马齿苋拒食活性影响最大，其次为时间因素。[结论]试验结果为开发以马齿苋为原料的植物性杀虫剂提供了理论依据。
Abstract
Objective] The aim was to study on antifeedant activity of purslane petroleum ether extract on corn leaf aphid under different condi-tions.[Method] Using single factor and orthogonal test, the antifeedant activity of purslane petroleum ether extract on corn leaf aphid under dif-ferent concentration, temperature and time was studied .[ Result ] The results showed that under concentration of 100 mg/mL, temperature 25 ℃, time 48 h, the antifeedant activity of purslane petroleum ether extract was the highest .Extract concentration was the key factor influencing the antifeedant activity, followed by time factor.[Conclusion] The study provides theoretical basis for development of vegetable insecticide with purslane as raw material.
基金项目
佳木斯大学研究生科技创新项目(LZR2015－008)
国家科技期刊平台
NSTL
维普
万方数据