Registration of ‘Bond CL’ Wheat

Abstract

'Bond CL' hard red winter wheat (Triticum aestivum), a doubled-haploid derived from the cross 'Yumar'//TXGH12588-120*4/FS2, was developed by the Colorado Agricultural Experiment Station and released to seed producers in August 2004. It was released based on its resistance to the original North American biotype of the Russian wheat aphid (Diuraphis noxia), its tolerance of imazamox herbicide, its adaptation to dryland production in eastern Colorado and the west-central Great Plains, and improved bread baking quality relative to available imazamox-tolerant cultivars. Bond CL is medium-early maturing and semidwarf. In 14 trial locations of the Colorado Dryland Uniform Variety Performance Trial during 2002, 2003 and 2004, Bond CL produced grain yields (3205 kg/ha) slightly lower than 'Above' (3252 kg/ha) and greater than 'AP502 CL' (3044 kg/ha), the only two cultivars in the trials with imazamox tolerance. It produced higher grain yield than the Russian wheat aphid-resistant cultivars 'Ankor' (3138 kg/ha), 'Stanton' (3104 kg/ha), 'Prairie Red' (3097 kg/ha) and 'Yumar' (3064 kg/ha).