Biological effects of the free and embedded metribuzin and tribenuron-methyl herbicides on various cultivated weed species | Научно-инновационный портал СФУ

Biological effects of the free and embedded metribuzin and tribenuron-methyl herbicides on various cultivated weed species

Тип публикации: статья из журнала

Идентификатор DOI: 10.1080/03601234.2020.1807835

Ключевые слова: metribuzin, tribenuron-methyl, degradable p(3hb), weed growth inhibition, photosynthetic activity

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 polymer 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.

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Издание

Журнал: JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES

ISSN журнала: 03601234

Место издания: PHILADELPHIA

Издатель: TAYLOR & FRANCIS INC

Авторы

  • Volova Tatiana (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia; Krasnoyarsk Sci Ctr SB RAS, Fed Res Ctr, Inst Biophys SB RAS, Krasnoyarsk, Russia)
  • Baranovsky Sergey (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
  • Petrovskaya Olga (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
  • Shumilova Anna (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
  • Sukovatyi Alexey (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia; Krasnoyarsk Sci Ctr SB RAS, Fed Res Ctr, Inst Biophys SB RAS, Krasnoyarsk, Russia)

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