Differential Tolerance of Corn (Zea mays) Inbreds to Four Sulfonylurea Herbicides and Bentazon

摘要

Nine corn inbreds were selected form a test on 250 inbreds based on distinctly different response to herbicides. These inbreds showed up to 50,000-fold differences, which varied by inbred and herbicide. Only the inbred GA209 was sensitive to bentazon and the four suflonlyurea herbicides. GA209 and B90 were the most sensitive inbreds tot he sulfonylurea herbicides. F2R was generally The most tolerant inbred. The pattern of herbicide tolerance varied greatly.