BILL BARKSDALE / AGSTOCKUSA / SCIENCE PHOTO LIBRARY BILL BARKSDALE / AGSTOCKUSA / SCIENCE PHOTO LIBRARY
Herbicide resistant cotton plants. Row of young cotton plants being sprayed with the herbicide Roundup. These saplings are genetically modified (GM) Roundup Ready cotton plants (Gossypium hirsutum), where they have had a gene introduced by genetic engineering that allows resistance to this herbicide. A crop of Roundup Ready cotton can therefore be sprayed with the herbicide to kill weeds, but without damaging the cotton plants. This theoretically increases cotton yields, but there is concern over the safety of GM technology. Photographed in Mississippi, USA.
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