摘要
为了系统研究多花黑麦草、早熟禾、碱茅和棒头草等4种小麦田禾本科杂草的防除药剂活性,在温室内采用盆栽法研究了8种除草剂对小麦田多花黑麦草等4种禾本科杂草的生物活性。结果表明,乙酰乳酸合成酶（ALS）抑制剂啶磺草胺对早熟禾有很好的防除效果,田间推荐剂量下防效达到93.06%（防效均为田间推荐剂量下,下同）,对碱茅、多花黑麦草和棒头草的效果也较好,防效在82.82%-86.89%之间,另2种ALS抑制剂氟唑磺隆和甲基二磺隆对早熟禾的防效较好,在61.27%-86.71%之间,但对其他3种杂草碱茅、棒头草和多花黑麦草的防效很差,防效仅在10.47%-29.43%之间。乙酰辅酶A羧化酶（ACCase）抑制剂唑啉草酯、肟草酮和炔草酯对碱茅、棒头草和多花黑麦草的防效均较好,在85.41%-100.00%之间,但对早熟禾的防效均较差,在19.08%-60.69%之间;另一种ACC抑制剂精噁唑禾草灵对棒头草防效为99.60%,对碱茅和多花黑麦草防效分别为72.00%和55.00%,对早熟禾仅为16.18%;植物光合系统Ⅱ抑制剂异丙隆对早熟禾、棒头草和碱茅的防效均较好,田间推荐剂量下防效在88.15%-96.53%之间,对多花黑麦草的效果略差,为67.43%。
Pyroxsulam,flucarbazone-Na,pinoxaden,tralkoxydim and clodinafop-propargyl are newly registered herbicides in China.A glasshouse experiment was conducted to evaluate the efficacy of these herbicides,compared with several commonly used herbicides,on four grass weed species in wheat fields.Key results were：1）The acetolactate synthase（ALS）inhibiting herbicide pyroxsulam achieved 93.06% control on Poa annua and82.82%-86.89% control on Puccinellia distans,Lolium multiflorum,Polypogon fugax（all herbicides applied at recommended field dose rates）.2）Other ALS inhibiting herbicides flucarbazone-Na and mesosulfuronmethyl achieved 61.27%-86.71%control on P.annua,but only 10.47%-29.43%control of P.distans,L.multiflorumand P.fugax.3）In contrast,the acetyl coenzyme A carboxylase（ACCase）inhibiting herbicides pinoxaden,tralkoxydim and clodinafop-propargyl showed 85.41%-100.00% control on P.distans,L.multiflorumand P.fugax,and 19.08%-60.69%on P.annua.4）The other ACCase inhibiting herbicide fenoxaprop-p-ethyl showed 99.60% control of P.fugax,72.00% and 55.00% of P.distans and L.multiflorum,and 16.18% control of P.annua.5）The plant photosystem Ⅱinhibiting herbicide isoproturon also controlled P.annua,P.distans and P.fugax（88.15%-96.53% control）,but showed poorer control of L.multiflorum（67.43%）.
出处
《草业学报》
CSCD
北大核心
2014年第6期349-354,共6页
Acta Prataculturae Sinica
基金
十二五国家科技支撑计划项目(2012BAD19B02)
山东省现代农业产业技术体系小麦创新团队项目资助
关键词
小麦田
禾本科杂草
除草剂
生物活性
wheat field
grass weeds
herbicides
biological activity
