The Effect of mepiquat adjuvant and spray volume on the adverse effect of dust on non-selective contact herbicides’ efficacy on winter wild oat

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ALIVERDI AKBAR; KARAMI SAMIRA; AHMADVAND GOUDARZ

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Journal: IRANIAN JOURNAL OF WEED SCIENCE Year:2020 | Volume:16 | Issue:1 Page(s): 121-133

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Title

The Effect of mepiquat adjuvant and spray volume on the adverse effect of dust on non-selective contact herbicides’ efficacy on winter wild oat

Author(s)

ALIVERDI AKBAR | KARAMI SAMIRA | AHMADVAND GOUDARZ | Issue Writer Certificate

Keywords

GlufosinateQ2

oxyfluorfenQ2

paraquatQ1

winter wild oatQ1

Abstract

Dust deposited on the foliage of weeds can have an adverse effect on the efficacy of herbicides, thus, this effect should be eliminated somehow. In this greenhouse study conducting at Bu-Ali Sina University in 2018, the response of fresh/dry weight ratio of winter wild oat to the 6 doses of oxyfluorfen (0, 28. 8, 60, 120, 240, and 480 g a. i. ha-1), paraquat (0, 36, 75, 150, 300, and 600 g a. i. ha-1), and Glufosinate (0, 60, 125, 250, 500, and 1000 g a. i. ha-1) sprayed at rates of 240, 480, or 240 L ha-1 plus mepiquat at 50 g ha-1 under 0 and 20 Kg dust ha-1 conditions were investigated. In the absence of dust, addition of mepiquat to oxyfluorfen and paraquat spray solutions did not have a significant effect on their efficacy but its addition to Glufosinate spray solution gave a significant negative effect on its efficacy. In the presence of dust, the addition of mepiquat to oxyfluorfen spray solution did not have a significant effect on its efficacy but its addition to Glufosinate spray solution has 6-time negative effect on its efficacy. While, the mepiquat addition to paraquat spray solution had a positive effect on its efficacy and increased the efficacy by 62. 07%. In the absence or presence of dust, spray volume increasing from 240 to 480 L ha-1 improved the efficacy of all herbicides in desiccating the foliage of winter wild oat.

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APA: Copy

ALIVERDI, AKBAR, KARAMI, SAMIRA, & AHMADVAND, GOUDARZ. (2020). The Effect of mepiquat adjuvant and spray volume on the adverse effect of dust on non-selective contact herbicides’ efficacy on winter wild oat. IRANIAN JOURNAL OF WEED SCIENCE, 16(1 ), 121-133. SID. https://sid.ir/paper/387475/en

Vancouver: Copy

ALIVERDI AKBAR, KARAMI SAMIRA, AHMADVAND GOUDARZ. The Effect of mepiquat adjuvant and spray volume on the adverse effect of dust on non-selective contact herbicides’ efficacy on winter wild oat. IRANIAN JOURNAL OF WEED SCIENCE[Internet]. 2020;16(1 ):121-133. Available from: https://sid.ir/paper/387475/en

IEEE: Copy

AKBAR ALIVERDI, SAMIRA KARAMI, and GOUDARZ AHMADVAND, “The Effect of mepiquat adjuvant and spray volume on the adverse effect of dust on non-selective contact herbicides’ efficacy on winter wild oat,” IRANIAN JOURNAL OF WEED SCIENCE, vol. 16, no. 1 , pp. 121–133, 2020, [Online]. Available: https://sid.ir/paper/387475/en

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