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期 刊 ：植物保护学报 2005年

关键词：甲酯化植物油；助剂；除草剂；药效增强作用；

Keywords:Methylated vegetable oil, adjuvant, herbicide, enhancement effect,

摘 要 ：为明确不同甲酯化植物油助剂对除草剂活性的影响,采用温室盆栽法测定了甲酯化油菜籽油、棉籽油、花生油、玉米油、大豆油、葵花籽油、亚麻籽油和蓖麻油8种甲酯化植物油助剂对磺草酮、莠去津、烟嘧磺隆和精喹禾灵4种常用茎叶处理除草剂防除稗草、反枝苋的影响。结果表明,8种助剂对供试4种除草剂均有不同程度的药效增强作用,其中对磺草酮和莠去津的药效增强幅度大于对烟嘧磺隆和精喹禾灵的药效增强作用,前者为30％~70％,后者则小于20％。相对而言,在供试8种助剂中,以甲酯化油菜籽油、棉籽油和花生油助剂对除草剂的药效增强效果较好,甲酯化玉米油、大豆油和葵花籽油助剂次之,而甲酯化亚麻籽油和蓖麻油助剂对除草剂的药效增强效果较差。

Abstract:The effect of 8 methylated vegetable oil adjuvants including methylated rapeseed oil adjuvant, methylated cottonseed oil adjuvant, methylated peanut oil adjuvant, methylated maize oil adjuvant, methylated soybean oil adjuvant, methylated sunflower oil adjuvant, methylated flaxseed oil adjuvant and methylated castor oil adjuvant on 4 herbicides in common usage for controlling barnyardgrass and redroot pigweed was measured by pot method in greenhouse. The 4 herbicides used were sulcotrione, atrazine, nicosulfuron and quizalofop-p-ethyl. The results showed that all the 8 methylated vegetable oil adjuvants had some enhancement effect on the 4 herbicides. The enhancement effect of these adjuvants on sulcotrione and atrazine were better than that on nicosulfuron and quizalofop-p-ethyl, and the former was from 30% to 70% and the latter was less than 20%. Comparatively speaking, the enhancement effect of methylated rapeseed oil adjuvant, methylated cottonseed oil adjuvant and methylated peanut oil adjuvant were better than the other 5 methylated vegetable oil adjuvants and the enhancement effect of methylated flaxseed oil adjuvant and methylated castor oil adjuvant were worse than the others.

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