Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"4-hydroxyphenylpyruvate dioxygenase (HPPD)"”.
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Evaluation of Benzobicyclon for use in Midsouthern Rice (Oryza sativa) Systems
… to Group 2 herbicides. This will be the first 4-hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicide commercially available in US rice production. Since, benzobicyclon is still under development, it is important to evaluate this herbicide in a drill-seeded rice production system. …
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Evaluation of Topramezone for Use in Rice (Oryza sativa L.) Production
… One SOA that has garnered interest is the 4-hydroxyphenylpyruvate dioxygenase (HPPD)- inhibiting herbicides. The only HPPD-inhibitor that will soon be labeled for use in US rice is benzobicyclon. The major disadvantage benzobicyclon has when compared to many other herbicides is that it must …
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Characterization of a novel five-way-resistant population of waterhemp (Amaranthus tuberculatus)
… auxin receptor, Photosystem II (PSII), and 4-hydroxyphenylpyruvate dioxygenase (HPPD). In 2012, a grower reported the failure to control a waterhemp population in conventional white corn with topramezone, an HPPD inhibitor. Records indicate the field had been planted with conventional corn …
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Evaluation of Benzobicyclon in Midsouth Rice (Oryza sativa) Production Systems
… susceptible to benzobicyclon and other 4-hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicides. More specifically, japonica-type rice cultivars show much better crop safety to benzobicyclon than indica-type or japonica- x indica-type. In this research, the indica-type rice …
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Distinct biochemical and molecular mechanisms confer resistance to mesotrione and atrazine in a multiple herbicide-resistant waterhemp population
… case of resistance to mesotrione and other 4-hydroxyphenylpyruvate dioxygenase (HPPD) herbicides in a waterhemp population designated MCR. Experiments were conducted to determine if target-site or non-target-site mechanisms confer mesotrione resistance in MCR. Additionally, the basis for …
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Characterization of HPPD-inhibitor resistance in waterhemp (Amaranthus tuberculatus)
… controlled following foliar applications of 4-hydroxyphenylpyruvate dioxygenase (HPPD)-inhibiting herbicides. Chapter 1 of this thesis includes a review of the literature pertaining to HPPD inhibitors, namely their discovery and uses as herbicides, as well as a section on waterhemp biology. …
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Preemergence activity of chloroacetamide herbicides on a multiple herbicide-resistant population of waterhemp (amaranthus tuberculatus)
… auxins, Photosystem II inhibitors (PSII), and 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibitors. Chloroacetamide herbicides, however, have remained effective. During research on the first HPPD-resistant population of waterhemp from Mclean County, IL (MCR), significantly less-than-anticipated …
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Optimizing Topramezone and Other Herbicide Programs for Weed Control in Bermudagrass and Creeping Bentgrass Turf
… response. An initial investigation of three 4-hydroxyphenylpyruvate dioxygenase (HPPD) inhibiting herbicides in different turf types showed that Kentucky bluegrass, perennial ryegrass, and tall fescue were highly tolerant to topramezone, while creeping bentgrass and bermudagrass could tolerate …