Mutations of the ALS gene endowing resistance to ALS‐inhibiting herbicides in <i>Lolium rigidum</i> populations

Abstract

This study established the existence of a diversity of ALS gene mutations endowing resistance in L. rigidum populations: 1-6 different mutations were found within single populations. At field herbicide rates, resistance profiles were determined more by the specific mutation than by whether plants were homo- or heterozygous for the mutation.