RESISTANCE OF DICOT WEEDS TO ACETOLACTATE SYNTHASE (ALS)-INHIBITING HERBICIDES IN AUSTRALIA

被引：32

作者：

BOUTSALIS, P

POWLES, SB

机构：

[1] Department of Crop Protection, Waite Agricultural Research Institute, University of Adelaide, South Australia

来源：

WEED RESEARCH | 1995年 / 35卷 / 03期

关键词：

D O I：

10.1111/j.1365-3180.1995.tb02028.x

中图分类号：

S3 [农学（农艺学）];

学科分类号：

0901 ;

摘要：

A biotype of Sonchus oleraceus L. and two biotypes of Sisymbrium orientale Torn., SSO 3 and NSO 1, are the first dicot weeds in Australia to develop resistance to ALS-inhibiting herbicides. The resistant biotypes had been exposed to varying periods of selection with sulfonylurea herbicides. All three biotypes are resistant to a range of sulfonylurea and imidazolinone herbicides. The S. orientale biotypes are also resistant to the triazolopyrimidine herbicide, flumetsulam. LD(50) ratios of resistant Sonchus oleraceus for sulfonylurea and imidazolinone herbicides are greater than 64-fold and 4.5-fold, respectively. GR(50) ratios are greater than 9 for sulfonylureas and 7.4 for imazapyr. The LD(50) ratios for both S. orientale biotypes for chlorsulfuron, sulfometuron-methyl, metsulfuron-methyl, flumetsulam and imazethapyr are greater than 110-, 15-, 7-, 24- and 29-fold, respectively. All resistant biotypes are susceptible to MCPA, diuron and diflufenican, herbicides which do not inhibit ALS.

引用

页码：149 / 155

页数：7

共 11 条

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