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Open AccessFeature PaperReview

Herbicide Resistance Traits in Maize and Soybean: Current Status and Future Outlook

Crop Production Systems Research Unit, Agricultural Research Service, United States Department of Agriculture, Stoneville, MS 38776, USA
Plants 2019, 8(9), 337; https://doi.org/10.3390/plants8090337
Received: 16 August 2019 / Revised: 5 September 2019 / Accepted: 6 September 2019 / Published: 9 September 2019
(This article belongs to the Special Issue Herbicide Resistance in Plants)
This article reviews, focusing on maize and soybean, previous efforts to develop nontransgenic herbicide-resistant crops (HRCs), currently available transgenic HRC traits and technologies, as well as future chemical weed management options over the horizon. Since the mid twentieth century, herbicides rapidly replaced all other means of weed management. Overreliance on ‘herbicide-only’ weed control strategies hastened evolution of HR weed species. Glyphosate-resistant (GR) crop technology revolutionized weed management in agronomic crops, but GR weeds, led by Palmer amaranth, severely reduced returns from various cropping systems and affected the bottom line of growers across the world. An additional problem was the lack of commercialization of a new herbicide mode of action since the 1990s. Auxinic HRCs offer a short-term alternative for management of GR Palmer amaranth and other weed species. New HRCs stacked with multiple herbicide resistance traits and at least two new herbicide modes of action expected to be available in the mid-2020s provide new chemical options for weed management in row crops in the next decade. View Full-Text
Keywords: corn; herbicide resistance trait; maize; soybean corn; herbicide resistance trait; maize; soybean
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Nandula, V.K. Herbicide Resistance Traits in Maize and Soybean: Current Status and Future Outlook. Plants 2019, 8, 337.

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