Imidazolinone-tolerant lentils– Wagga Wagga 2014

Abstract

Key findings »» Yield of PBA Ace[PBR] and PBA Jumbo2[PBR] (the only two imidazilinone or IMI-sensitive varieties evaluated) was reduced by 70%–80% from applying imazethapyr. »» PBA Hurricane XT[PBR] and PBA Herald XT[PBR] are the only current commercial IMI-tolerant varieties. PBA Hurricane XT[PBR] is better adapted, producing more dry matter and grain yield than PBA Herald XT[PBR] in southern NSW. »» CIPAL1422 is a promising advanced Coordinated Improvement Program for Australian Lentils (CIPAL) breeding line with high grain yield. It is very IMI-tolerant, and tall and bulky with late maturity. »» Advanced breeding lines are equal to, or better than, PBA Ace[PBR] and PBA Jumbo2[PBR] in southern NSW. They bring additional features such as herbicide tolerance, extra bulk and height, and a wider range of maturity. »» IMI herbicide tolerance will expand weed-control options in lentil, which is a poorly competitive crop with a limited number of registered herbicides. »» These new varieties, coupled with new technologies, demonstrate considerable potential for expanding lentils across the better class of acidic, red-brown soils of southern NSW.