蓖麻碱粗提物对麦蚜的生物活性研究  

Study on the Biological Activity of Crude Extraction of Castor Bean Shell against Wheat Aphid

作　　者：吴雪平[1] 单长卷[1] 包冬蛾[1] 

机构地区：[1]河南科技学院,河南新乡453003

出　　处：《安徽农业科学》2006年第11期2450-2450,2495,共2页Journal of Anhui Agricultural Sciences

基　　金：河南科技学院重点科研项目资助基金

摘　　要：用水提法从蓖麻籽壳中提取蓖麻碱粗提物,采用浸渍法对麦蚜进行杀虫试验。结果表明:1005、0 mg/ml的蓖麻碱粗提液对麦蚜具有一定的杀虫效果,12.56、.25 mg/ml蓖麻碱粗提液对麦蚜的杀虫效果不明显。对蚜虫48 h的毒力回归方程为:y=1.342 7x+1.649 9,LC50=312.64 mg/ml,r=0.972**;72 h的回归方程为:y=2.629 4x+0.376 9,LC50=57.31 mg/ml,r=0.942 9*。In this peper, the effect that the crude extraction of castor bean shell on wheat aphid was studies .The regressive equation of the crude extraction asaimt wheat aphid was y = 1.342 7x ＋ 1.6499, LC50 = 312.64 mg/ml, r = 0.972^＊＊ after 48 h ,and the recessive equation of the crude extraction asainst wheat aphid was y =2.6294x ＋0.3769,LC50 =57.31 mg/ml, r =0.9429^＊ after 72 h.

关 键 词：蓖麻碱粗提物 漫渍法 走蚜 生物活性 

分 类 号：Q946[生物学—植物学]