Chemistry: fertilizers – Processes and products – Forms or conditioning
Patent
1990-02-20
1992-01-28
Weimar, Elizabeth C.
Chemistry: fertilizers
Processes and products
Forms or conditioning
800200, 800230, 800DIG26, 47 58, 4351721, 71 91, 71 92, 71 93, A01N 4302, A01N 4348, A01N 4364, A01H 500
Patent
active
050840827
ABSTRACT:
The utilization of a positive selection seed screening process to isolate rate variants with resistance to a herbicide is described. The ability to screen large numbers of mutagenized seed has made it feasible to pursue and isolate plants with low frequency dominant herbicide-resistance mutations. The dominant herbicide resistance mutations are useful for many applications including expanding the utility of sulfonylurea herbicides for soybean weed control, production of F.sub.1 and F.sub.2 seeds, and as selectable markers for efficient seed purification.
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Chereskin Che
E. I. Du Pont de Nemours and Company
Weimar Elizabeth C.
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