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Understanding The Biology, Inheritance And Mechanism Of Resistance Of 2,4-D Resistant Waterhemp (Amaranthus Tuberculatus) - Research Proposal, Roberto Crespo
Understanding The Biology, Inheritance And Mechanism Of Resistance Of 2,4-D Resistant Waterhemp (Amaranthus Tuberculatus) - Research Proposal, Roberto Crespo
Department of Agronomy and Horticulture: Dissertations, Theses, and Student Research
Waterhemp is a very well adapted summer annual weed to the U.S. Corn Belt region. Auxinic herbicides such as 2,4-D constitute effective and widely used herbicides to control waterhemp and other broadleaf species in cereal crops and turf grasses. Recently, Bernards et al. (2012) have reported a Nebraska waterhemp biotype has evolved resistant to 2,4-D. This finding represents the sixth mode-of action herbicide group to which waterhemp has evolved resistance to. Several attributes may have contributed to make waterhemp a very successful weed and prone to evolve to herbicide resistant: a high genetic variability, aggressive growth habits and high fecundity. …