Тип публикации: статья из журнала
Год издания: 2020
Идентификатор DOI: 10.1080/03601234.2020.1807835
Ключевые слова: metribuzin, tribenuron-methyl, degradable p(3hb), weed growth inhibition, photosynthetic activity, weed growth inhibitionchlorophyll a, 479-61-8, hydroxybutyric acid, 1320-61-2, 35054-79-6, metribuzin, 21087-64-9, metsulfuron methyl, 74223-64-6, arylsulfonates, chlorophyll a, delayed-action preparations, herbicides, hydroxybutyrates, metsulfuron methyl, poly-beta-hydroxybutyrate, polyesters, triazines
Аннотация: The present study addresses the herbicidal activity and biological effects of the metribuzin (MET) and tribenuron-methyl (TBM) herbicides used to control various weed species (Amaranthus retroflexus, Sinapis arvensis,andLeucanthemum maximum). The effects of the free herbicides and the herbicides embedded in granules of degradable pПоказать полностьюolymer poly-3-hydroxybutyrate [P(3HB)] blended with birch wood flour were compared. Metribuzin, regardless of the form, caused 100% mortality of the three weeds by day 21. The herbicidal activity of tribenuron-methyl was lower than that of metribuzin, but the embedded TBM was superior to the free herbicide in the length and strength of its action on the weeds. Both metribuzin forms dramatically decreased the main parameters of fluorescence: maximum quantum yield of photosystem-II [Y(II)(max)], maximum quantum yield of non-photochemical quenching [Y(NPQ)(max)], and maximum rate of non-cyclic electron transport [ETRmax] and concentrations of chlorophyllaandb. The effect of the embedded TBM on the photosynthetic activity of the weeds was lower in the first two weeks of the growth of herbicide-treated plants but lasted longer than the effect of the free TBM and increased over time. Embedding of metribuzin in the matrix of degradable blend did not decrease its herbicidal activity.
Журнал: JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES
Выпуск журнала: Vol. 55, Is. 11
Номера страниц: 1009-1019
ISSN журнала: 03601234
Место издания: PHILADELPHIA
Издатель: TAYLOR & FRANCIS INC