Tolerance of chickpea to isoxaflutole

摘要

Summary Balance~(R) (75% a.i. isoxaflutole) at 100 g ha~(-1) is registered for the control of several troublesome broad-leaved weeds in chickpea. It is applied post-planting, pre-emergence, often with simazine. In 2002 we observed crop damage from Balance that was particularly severe with one experimental line, 91025-3021. Pot and field trials in 2003 confirmed 91025-3021 to be more sensitive than the currently recommended varieties, Amethyst, Howzat and Jim-bour. However, under some conditions all varieties were damaged at the recommended rate. A soon to be released variety, 9113-13N-2, was found to be more sensitive to Balance than the current varieties.