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Showing 1 to 17 of 17 for “"Diquat"”.
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Effects of paraquat and diquat on the pulmonary and platelet disposition of 5-hydroxytryptamine
This document only includes an excerpt of the corresponding thesis or dissertation. To request a digital scan of the full text, please contact the Ruth Lilly Medical Library's Interlibrary Loan Department (rlmlill@iu.edu).
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Dissipation of the herbicides endothall, diquat, and a 1:1 mixture in water, sediment, and Egeria densa
A herbicidial mixture of diquat and endothall used for control of aquatic macrophytes was evaluated to determine the environmental persistence of the combination and its components and phytotoxicity for egeria (Egeria densa). The tests were conducted in wooden pools illuminated with a 15 hr …
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The effects of herbicide treatment on a reservoir ecosystem
… of recreation and potable water. A mixture of diquat dibromide (6,7-dihydrodipyrido (l,2-a:2,l'c)pyrazinediium dibromide) and potassium endothall (7- oxa.bicylq;>, z,1 )heptane-2 ,J-dicarboxylic acid) was applied at 2.83 liters of each chemical per 0.4 surface ha. There were no measurable …
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Host-Guest Systems Based on Crown Ether, Cryptand, and Pseudocryptand Hosts with Paraquat, Diquat, Secondary Ammonium, and Monopyridinium Salt Guests
… complex based on dibenzo-24-crown-10 and diquat was prepared. In its crystal structure the diquat guest lies in the concave cavity provided by two dibenzo-24-crown-8 hosts. Monopyridinium-based [2]- and [3]-pseudorotaxanes were prepared based on the newly discovered …
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The effect of sublethal concentrations of selected toxicants on the negative phototactic response of Dugesia tigrina
… of zinc, nickel, cadmium, copper, chromium, diquat, and ABS. The order of toxicity from most toxic to least toxic was: copper cadmium nickel zinc ABS chromium diquat. From these LC₅₀ values sublethal concentrations were arbitrarily chosen for use in the light response studies. After …
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Factors influencing the development of resistance to the bipyridyl herbicides in Australia / Edison Purba.
… winter growing season to examine Paraquat and Diquat resistance in the grass weed species Hordeum leporinum Link., H. glaucum Steud. and Vulpia bromoides SF Gray, and in the broadleaf weed Arctotheca calendula (L.) Levyns.
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Efficient Syntheses of Strong Binding Cryptands and their Derivatives for Supramolecular Polymer Synthesis
… binds paraquat strongly (Ka = 1-2x105 M-1) and diquat stronger than any other host (Ka = 1.9x106 M-1), both in 1:1 fashions; association constants were measured by ITC. X-ray crystallography of the complexes shows the cryptand's para arm is too far away to interact with paraquat and the host has …
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Polypyrrole Modified with Macrocycles for the Detection of Aqueous Pollutants and Carbon Membranes for the Separation of Gases
… and sul-calix[4] and the analytes, paraquat and diquat. Electrochemical and spectroscopic techniques were used to quantify the association constant, Ka. The data obtained from these techniques was consistent with electrostatic interactions as the major driving force in complex formation. In the …
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New Herbicide Strategies for Weed Management in Pumpkin and Soybean and Potato Vine Desiccation
… carfentrazone plus glufosinate were compared to diquat applied at 43, 31, and 17% B potatoes; similar vine desiccation (14 days after treatment), skin set, and yield were noted amongst treatments. Residual herbicides are routinely used for weed control in pumpkin. Fluridone and acetochlor …
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Factors affecting the growth of Cladophora in relation to river pollution
… and the effects of various herbicides assessed. Diquat and terbutryne were shown to possess algicidal activity towards Cladophora. A closed continuous culture apparatus was developed: growth proceeded through lag, logarithmic and linear phases. Inoculum size and medium flow rate had significant …
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Optimizing Weed Management via Microwave Irradiation
… of emerged weeds as the contact herbicides diquat and acetic acid.
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Synthetic Design of Optical Emitters
… a class of dicationic quaternary ammonium (Diquat) ligands. The influence of these ligands leads to effective electronic passivation and modulation of phonon coupling, observed in the form of narrowed emission linewidths, bulk-like Stokes shifts, mitigated inhomogeneous lineshape broadening, …
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Volume de calda e espectro de gotas na eficácia de herbicidas em aplicação terrestre e aérea por meio de aeronave remotamente pilotada
… pesquisa (Capítulo 1), avaliou-se a aplicação de diquat (400 g i.a. ha?¹) em cinco volumes de calda, sendo quatro via ARP (5, 10, 15 e 20 L ha?¹) e um terrestre (200 L ha?¹) para dessecação do feijoeiro em pré-colheita, em duas épocas (verão-outono e outono-inverno). Nas aplicações com ARP, a cada …
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Factors governing zoysiagrass response to herbicides applied during spring green-up
… glyphosate, glufosinate, flumioxazin, and diquat become too injurious. Glufosinate was consistently more injurious regardless of application timing than glyphosate and other herbicides. When temperatures were 10 °C for 7 d following treatment, a delayed effect of glyphosate and glufosinate …
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Biomonitoring of herbicide impact using aquatic macrophytes : laboratory and field studies for the evaluation of potential toxicity on aquatic plants
… System eingreifen, wie Atrazin, Simazin und Diquat. Die bei den Makrophyten beobachteten Effekte für diese Herbizide stimmen mit denjenigen Daten überein, die in vorhandenen Labor- und Freilandarbeiten in der Literatur zu finden sind, und bestätigen das enorme Potential des Labortestsystems, …
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Design, Preparation and Characterization of Novel Pseudorotaxanes, Semirotaxanes, Rotaxanes, Non-Covalent Supramolecular Polymers and Polycatenanes
… novel [2]pseudorotaxanes with paraquat and diquat PF₆ salts with association constants (Kₐ) of 1.7 ± 0.1 x 10³ and 4.2 ± 0.3 x 10⁴ M⁻¹ in acetone-d₆, respectively. In order to prepare linear polycatenanes, the preparation of which represent a real synthetic challenge, a series phenanthroline …
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THE ROLE OF NRF2 IN PREVENTING OXIDATIVE/ELECTROPHILIC STRESS-INDUCED LIVER INJURY
… protects against ethanol-, cadmium-, and diquat-induced liver oxidative stress and liver injury in mice. Lastly, a few synthetic and natural existing compounds were shown to be effective in activating the Keap1-Nrf2-ARE pathway.