摘要
采用盆栽法,以氯氟吡氧乙酸异辛酯和百草枯原药为对照,研究了增效配比氯氟吡氧乙酸异辛酯＋百草枯（有效成分质量比4：1）混剂对三叶草电导率、叶片氧自由基产生速率及乙酰乳酸合成酶（ALS）比活力等生理生化指标的影响。结果表明：百草枯混剂对三叶草叶片电导率具增效作用,其药后2d氯氟吡氧乙酸异辛酯＋百草枯混剂实际抑制率与混剂理论抑制率M值为789.44;混剂对叶片氧自由基产生速率表现出增效作用,药后4d其M值为262.12;混剂对ALS活力具有相加作用,药后2d其M值为104.12。
Trifolium repens Linn.is one of the familiar herbs in agricultural production and it is significant to study how to control it.Effects of physiology and biochemistry of the mixture of fluroxypr mepthyl and paraquat（4∶1,the proportion of effective ingredients） against T.repens were studied with pot screening,including conductivity,oxygen free radical produced rate,acetolactate synthase（ALS） activity and so on,with fluroxypr mepthyl and paraquat as controls.The results indicated that the mixture treatment showed very strong synergism against T.repens＇ conductivity and oxygen free radical produced rate,which the M value of the actual to the theoretical inhibition ratio of conductivity was 789.44 after 2 days treatment and the M value of the actual to the theoretical inhibition ratio of oxygen free radical produced rate was 262.12 after 4 days treatment.The addition function was also displayed on ALS activity with the M value of 104.12 after 2 days treatment.Therefore,the synergism proportion is worthy of a further study.
出处
《华中农业大学学报》
CAS
CSCD
北大核心
2010年第2期 156-159,共4页
Journal of Huazhong Agricultural University
基金
四川省科技厅项目（07ZS001）资助
关键词
三叶草
氯氟吡氧乙酸异辛酯
百草枯
生理生化
Trifolium repens Linn.
fluroxypr-mepthyl
paraquat
physiology and biochemistry
