Tolerance of annual strand medic cv.Angel to ALS-inhibiting herbicides
Angel.is a new chemically induced mutant variety of strand medic (Medicago littoralis) selected for tolerance to soil residues of certain acetolactate synthase (ALS) inhibiting herbicides including the sulfonylurea (SU) herbicides ( Heap,2000; Howie and Bell,2005).SU herbicides are widely used in the cereal-livestock zones of temperate Australia. However their residues can persist, particularly where alkaline soils and low rainfall significantly reduce their breakdown by microbial action and chemical hydrolysis. Regenerating annual Medicago spp.,widely used in these areas in Australian ley farming systems, are generally intolerant of SU herbicide residues, resulting in stunting, reduced dry matter production, lower seed yields, poor persistence and decreased N fixation.This study reports on the response of Angel to simulated residues of some newer ALS-inhibiting herbicide products.
ALS-inhibiting sulfonylurea residues medics Medicago littoralis
J.H.Howie C.Dyson C.Preston
South Australian Research & Development Institute,GPO Box 397,Adelaide SA 5001,Australia University of Adelaide,Urrbrae,SA,5064
国际会议
呼和浩特
英文
2008-06-29（万方平台首次上网日期，不代表论文的发表时间）