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As of 2005, 87% of U.S. soybean fields were planted with glyphosate resistant varieties. [ 7 ] [ 8 ] While the use of Roundup Ready crops has increased the usage of herbicides measured in pounds applied per acre, [ 9 ] it has also changed the herbicide use profile away from atrazine , metribuzin , and alachlor [ citation needed ] which are more ...
Application of glyphosate-based herbicides to row crops resulted in problems with crop damage and kept them from being widely used for this purpose. In the United States, use of Roundup experienced rapid growth following the commercial introduction of a glyphosate-resistant soybean in 1996. [75] "Roundup Ready" became Monsanto's trademark for ...
LibertyLink provides an herbicide resistance system that is still effective in the presence of glyphosate resistant weeds. [1] The gene which gives resistance to glufosinate is a bar or pat gene which was first isolated from two species of Streptomyces bacteria.
The "Xtend Crop System" includes seed genetically modified to be resistant to both glyphosate and dicamba, and a herbicide product including those two active ingredients. [136] In December 2014, the system was approved for use in the US. In February 2016, China approved the Roundup Ready 2 Xtend system. [137]
The glyphosate-based herbicide RoundUp (styled: Roundup) was developed in the 1970s by Monsanto. Glyphosate was first registered for use in the U.S. in 1974. [4] Glyphosate-based herbicides were initially used in a similar way to paraquat and diquat, as non-selective herbicides. Attempts were made to apply them to row crops, but problems with ...
Approval has been granted to grow crops engineered to be resistant to the herbicides 2,4-dichlorophenoxyacetic acid, [8] dicamba, [9] glufosinate [10] glyphosate, [11] sulfonylurea, [12] oxynil [13] mesotrione [14] and isoxaflutole [15] Most herbicide resistant GM crops have been engineered for glyphosate tolerance, in the USA 93% of soybeans ...