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Absorption and Metabolism of Foliar-Applied Rimsulfuron in Potato (Solanum tuberosum L.), Common Lambsquarters (Chenopodium album L.) and Redroot Pigweed (Amaranthus retroflexus L.)

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DOI

  • Mohammad T Alebrahim, Department of Agronomy and Plant Breeding, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran, Iran
  • Roghayyeh Majd, Agricultural Jihad Organization of Ardabil Province, Ardabil, Iran, Iran
  • Fatemeh Abdollahi, Department of Agronomy and Plant Breeding, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran, Iran
  • Rouzbeh Zangoueinejad, Department of Agronomy and Plant Breeding, Faculty of Agriculture and Natural Resources, University of Mohaghegh Ardabili, Ardabil, Iran, Iran
  • Franck E Dayan, Department of Agricultural Biology, College of Agricultural Sciences, Colorado State University, Fort Collins, CO, USA, USA
  • Solvejg K Mathiassen
  • ,
  • Per Kudsk
Rimsulfuron is commonly used to control common lambsquarters (Chenopodium album L.) and redroot pigweed (Amaranthus retroflexus L.) in potato (Solanum tuberosum L.) fields. Comparing rimsulfuron absorption and metabolism patterns in these two weed species with potato could provide crucial information to optimise herbicide application in the field. Hence, an experiment was conducted in Denmark and Iran to evaluate the absorption and metabolism of rimsulfuron at the application rate of 30 g ha−1 in potato, common lambsquarters and redroot pigweed. Seedlings at the 2- to 4-leaf stage were foliar treated with rimsulfluron and plant tissues were harvested at 0, 1, 4, 8, 24 and 48 h after treatment (HAT) to measure the rate of herbicide absorption and metabolism using HPLC. Absorption and metabolism of rimsulfuron differed between potato and weed seedlings. This explains the different susceptibility to rimsulfuron in potato, redroot pigweed and common lambsquarters. Redroot pigweed, the most sensitive species in this study, showed the highest rate of absorption and lowest rate of the herbicide metabolism. Common lambsquarters, a species with an intermediate sensitivity, revealed moderate rimsulfuron absorption and metabolism levels. Potato, the tolerant crop species to rimsulfuron, showed the lowest and highest rate, respectively, of absorption and metabolism.
OriginalsprogEngelsk
TidsskriftPotato Research
Vol/bind64
Nummer4
Sider (fra-til)635-648
Antal sider14
ISSN0014-3065
DOI
StatusUdgivet - 22 apr. 2021

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