Acetolactate synthase from spontaneous mutants of tobacco (Nicotiana tabacum; KS-43 and SK-53) and cotton (Gossypium hirsutum; PS-3, PSH-91, and DO-2) selected in tissue culture for resistance to a triazolopyrimidine sulfonanilide showed varying degrees of insensitivity to feedback inhibitor(s) valine and/or leucine. A similar feature was evident in the enzyme isolated from chlorsulfuron-resist...

Abstract Gowan Company recently registered benzobicyclon, a WSSA Group 27 herbicide, as postflood option in rice. It is the first 4-hydroxyphenylpyruvate dioxygenase-inhibiting herbicide commercially available mid-southern U.S. rice production. In 2018 and 2019, field experiments were conducted across multiple sites Arkansas to determine if addition of benzobicyclon quizalofop- or imidazolinone...