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 11 of 11 for “"Barnyardgrass"”.
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Characterization of Candidate Compound for Control of Barnyardgrass and Other Troublesome Weeds In Rice
<p>Barnyardgrass remains one of the most difficult weeds to manage in rice. As herbicide resistance in this species, as well as others, continues to increase new control options are needed. Dow AgroSciences recently discovered and is developing a new herbicide for rice which is the primary focus of …
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Evaluation of Topramezone for Use in Rice (Oryza sativa L.) Production
… a growing concern to rice producers worldwide. Barnyardgrass, one of the most problematic weeds in rice cropping systems, alone has been found to be resistant to four herbicide sites of action (SOA) in certain populations, leaving growers no options for control. This unsettling fact has led to …
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Evaluation of Very-Long-Chain Fatty Acid-Inhibiting Herbicides in Arkansas Rice Production
… evolution of herbicide-resistant weeds, such as barnyardgrass and red rice in rice, there is a need for alternative herbicide sites of action. Very-long-chain fatty acid (VLCFA)-inhibiting herbicides are not labeled for use in U.S. rice production; however, this site of action (SOA) has been used …
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Red rice competition and control in cultivated rice
… Glufosinate controlled hemp sesbania, red rice, barnyardgrass, and Amazon sprangletop at least 95%. Imazethapyr controlled hemp sesbania less than 35%. With one exception, barnyardgrass, red rice, and Amazon sprangletop control was at least 95%. Two postemergence imazethapyr applications …
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Weed resistance risk management in glyphosate-resistant cotton
… population dynamics of Echinochloa crus-galli (barnyardgrass) and Urochloa panicoides (liverseed grass) under a range of weed management regimes in a glyphosate-resistant cotton system. These treatments ranged from a full IWM system to a system based soley on the use of glyphosate. The …
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"Digitaria Sanguinalis (l.) Scop., Echinochloa Crus-galli (l.) Beauv. And Setaria Faberi (herrm.) Interference And Subsequent Control In Container Grown Cornus X Baileyi, Juniperus Chinensis ""san Jose' And Potentilla Fruticosa ""gold Drop'"
… revealed foxtail, quackgrass, crabgrass and barnyardgrass were the most prevalent grasses found infesting field and container grown ornamentals. Subsequently, randomized block designed experiments were conducted for two consecutive years to determine the influence of grass weeds growing in …
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Evaluation of Fenclorim Safener for Use in Rice with Group 15 Herbicides
… provided better control of weedy rice and barnyardgrass with earlier application timings and increasing rates. The fenclorim seed treatment enhanced crop tolerance to acetochlor applied delayed-preemergence (DPRE) averaged over acetochlor rate. Also, rice demonstrated good tolerance to …
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Use of Harvest Weed Seed Control Strategies in Arkansas Soybean
… grass and broadleaf weeds (Palmer amaranth, barnyardgrass, johnsongrass, and pitted morningglory). All seed exposed to narrow-windrow burning treatments were killed. These data suggest that integration of HWSC into current weed management programs in soybean will be a valuable asset to …
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Characterization of Organosilicone Surfactants and Their Effects on Sulfonylurea Herbicide Activity
… susceptible weed species, velvetleaf and barnyardgrass, was significantly increased. A very complicated relationship exists between herbicides and adjuvants. The enhancement effects of adjuvants are often herbicide specific, weed species specific, and even environment specific. No one type …
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MODELLING THE INTERACTION BETWEEN WILD AND CULTIVATED SPECIES.
… the interaction between rice and two weeds (barnyardgrass and red rice); chapter 3 and 4 are focused on the extension of a model for the simulation of plant community dynamics in the context of mountain grassland systems, with case studies in temporary grasslands in the Apennine and in …
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Estimating Forage Production for Waterbirds and Waterbird Response to Habitat Management at Lacreek National Wildlife Refuge, South Dakota
… measurements were developed for barnyardgrass (Echinochloa crusgalli), annual smartweed (Polygonum spp.), and beggarticks (Bidens spp.) on Lacreek National Wildlife Refuge, South Dakota in September of 2008 and 2009. Multiple linear regression was used to develop prediction …