The objective of this trial was to compare Plainview, Esplanade, and Method at three applications for season-long weed control in noncropland. Glyphosate alone provided no residual control. Plainview (indaziflam/aminocyclopyrachlor/imazapyr) 64 oz/a applied the early or late fall controlled kochia similarly Krovar (bromacil/ diuron) season. Either rate as well tank mixture Esplanade (aminocyclo...

The effect o f UV-B-radiation on PSII activity o f spinach chloroplasts was analyzed by m ea­ suring the integrity of the herbicide-binding protein (HBP 32), by measurement o f fluorescence induction in the presence o f Diuron (DC M U ), and by m athem atical analysis o f the fluorescence induction curves. It was shown that UV-B inactivates the PSII a-centers but not PSII ^-centers. However, th...

Otto Warburg, the father o f cellular bioenergetics, seems to have been the first investigator to report on inhibition o f a plant biochemical reaction by a progenitor o f a selective herbicide. The year was 1920 and the compound was phenylurethane (ethyl N-phenylcarbamate or EPC). Warburg found that it strongly inhibited photosynthesis in Chlorella. EPC did not de­ velop into a commercial herb...

Fluorescence induction characteristics have been studied in wild-type and atrazine-resistant mutant o f Rhodobacter capsulatus. Fluorescence induction was found to be a useful technique to monitor the altered electron transfer in the atrazine-resistant mutants as well as in the differ­ ent membrane fractions o f wild-type R. capsulatus. In both cases, the proportion o f the fast rise o f variab...

Four phenylurea herbicides (isoproturon, chlortoluron, diuron and linuron) were dissolved in different water matrices in order to study their chemical degradation by using UV radiation, ozone and some advanced oxidation processes (UV/H2O2, O3/H2O2, Fenton reagent and the photoFenton system). The waters used were: ultra-pure water, a commercial mineral water, a groundwater and a surface water ta...