ﺑﺮرﺳﯽ ﮐﺎراﯾﯽ ﺑﺮﺧﯽ ﻋﻠﻒ ﮐﺶ ﻫﺎي ﺳﻮﻟﻔﻮﻧﯿﻞ اوره در ﮐﻨﺘﺮل ﺳﻮروف

Study the efficacy of some sulfonylurea herbicides in barnyardgrass control

ﮐﺎراﯾﯽ ﺑﺮﺧﯽ ﻋﻠﻒ ﮐﺶ ﻫﺎي ﺳﻮﻟﻔﻮﻧﯿﻞ اوره در ﮐﻨﺘﺮل ﮔﻮﻧﻪ ي راﯾﺞ Echinochloa crus-galli L و ﻣﻬﺎﺟﻢ ﺳﻮروف Echinochloa oryzoides Ard Fritsch در ﻣﺆﺳﺴﻪ ﺗﺤﻘﯿﻘﺎت ﺑﺮﻧﺞ ﮐﺸﻮر- رﺷﺖ ﻃﯽ ﺳﺎل ﻫﺎي 1396 و 1397 ﻣﻘﺎﯾﺴﻪ ﺷ.ﺪ در ﺑﺮرﺳﯽ آزﻣﺎﯾﺸﮕﺎﻫﯽ واﮐﻨﺶ دو ﮔﻮﻧﻪ ي ﻫﺮز ﻓﻮق ﺑﻪ دز ﻫﺎي ﺻﻔﺮ، ،1 0،/1 0،/01 0/001 و 0/0001 و در آزﻣﺎﯾﺶ ﮔﻠﺪاﻧﯽ واﮐﻨﺶ آن ﻫﺎ ﺑﻪ دز ﺗﻮﺻﯿﻪ ﺷﺪه ﻋﻠﻒ ﮐﺶ ﻫﺎي ﻓﻠﻮﺳﺘﻮﺳﻮﻟﻔﻮرون WG ،10%, 30 g ai/ha ﺗﺮﯾﺎﻓﺎﻣﻮن اﺗﻮﮐﺴﯽ ﺳﻮﻟﻔﻮرون ﮐﺎﻧﺴﯿﻞWG 30%, 45 g ai/ha ﺑﻦ ﺳﻮﻟﻔﻮرون ﻣﺘﯿﻞ DF 60%, 36 g ai/ha ﭘﯿﺮازوﺳﻮﻟﻔﻮرون اﺗﯿﻞ WG 75%, 22.5 g ai/ha و دو ﻓﺮﻣﻮﻻﺳﯿﻮن ﺑﯿﺲ ﭘﺎﯾﺮﯾﺒﺎك ﺳﺪﯾﻢ SC 12.5%, 25 g ai/ha SC 40% 40 g ai/ha ﺑﺮرﺳﯽ ﺷﺪ. ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﺑﻄﻮرﮐﻠﯽ ﺣﺴﺎﺳﯿﺖ دو ﮔﻮﻧﻪ ﺳﻮروف ﺑﻪ دز و ﻧﻮع ﻋﻠﻒ ﮐﺶ ﻫﺎي ﻣﻮرد ﺑﺮرﺳﯽ ﻣﺘﻔﺎوت و ﮔﻮﻧﻪ ي ﻣﻬﺎﺟﻢ ﺳﻮروف ﻧﺴﺒﺖ ﺑﻪ ﮔﻮﻧﻪ ي راﯾﺞ داراي ﺣﺴﺎﺳﯿﺖ ﺑﯿﺸﺘﺮي ﺑﻪ ﻋﻠﻒ ﮐﺶ ﻫﺎ .ﺑ ﻮد ﮐﺎﻧﺴﯿﻞ و ﻓﻠﻮﺳﺘﻮﺳﻮﻟﻔﻮرون داراي ﺑﯿﺸﺘﺮﯾﻦ 95%≥ و ﭘﯿﺮازوﺳﻮﻟﻔﻮرون اﺗﯿﻞ داراي ﮐﻤﺘﺮﯾﻦ %50 ≤ ﮐﺎراﯾﯽ در ﮐﻨﺘﺮل ﮔﻮﻧﻪ ﻫﺎي ﺳﻮروف و دو ﻓﺮﻣﻮﻻﺳﯿﻮن ﺑﯿﺲ ﭘﺎﯾﺮﯾﺒﺎك ﺳﺪﯾﻢ داراي ﮐﺎراﯾﯽ ﻣﺸﺎﺑﻪ %72 ≥ ﺑﻮدﻧﺪ ﺑﻦ ﺳﻮﻟﻔﻮرون ﻣﺘﯿﻞ داراي ﮐﺎراﯾﯽ ﺑﯿﺸﺘﺮي در ﮐﻨﺘﺮل ﮔﻮﻧﻪ ي ﻣﻬﺎﺟﻢ ﺳﻮروف ﻧﺴﺒﺖ ﺑﻪ ﮔﻮﻧﻪ ي راﯾﺞ اﯾﻦ ﻋﻠﻒ ﻫﺮز ﺑ.ﻮد ﺑﺎﺗﻮﺟﻪ ﺑﻪ ﮐﺎراﯾﯽ ﺧﻮب ﮐﺎﻧﺴﯿﻞ و ﻓﻠﻮﺳﺘﻮﺳﻮﻟﻔﻮرون در ﮐﻨﺘﺮل ﺳﻮروف، اﺳﺘﻔﺎده از آن ﻫﺎ در ﺗﻨﺎوب ﺑﺎ ﻋﻠﻒ ﮐﺶ ﻫﺎي اﺧﺘﺼﺎﺻﯽ ﺳﻮروف ﮐﺶ در ﻣﺪﯾﺮﯾﺖ ﺷﯿﻤﯿﺎﯾﯽ ﺳﻮروف ﭘﯿﺸﻨﻬﺎد ﻣﯽ ﺷﻮد

The efficacy of some sulfonylurea-herbicides in controlling common (Echinochloa crus-galli (L.)) and invasive species of barnyardgrass (Echinochloa oryzoides (Ard.) Fritsch) at Rice Research Institute of Iran Rasht was investigated during 2017 and 2018. In petri dish study the response of the above two weed species to doses of 0, 1, 0.1, 0.01, 0.001 and 0.0001 and in the pot experiment their response to the recommended dose of herbicides Flucetosulfuron (Zechor®, WG 10%, 30 g ai/ha), Triafamone + Ethoxysulfuron (Council®, WG 30%, 45 g ai/ha), bensulfuron methyl (Londox®, DF 60%, 36 g ai/ha), pyrazosulfuronethyl (Piroz®, WG 75%, 22.5 g ai/ha) and two bispyribac sodium formulations (Cleanweed®, SC 40%, 40 g ai / ha and Vejin® SC 12.5%, 25 g ai / ha) were evaluated. The results showed that overall, the susceptibility of the two barnyardgrass species to the dose and type of investigated herbicides was variable and the invasive species was more susceptible to the herbicide compared with common species. Council and Zechor had the highest (95%) and Piroz (50%) had the lowest efficacy in controlling barnyardgrass species and two bispyribac sodium formulations had the same efficacy (72%). Londox was more effective in controlling the invasive species of barnyardgrass than the common weed species. Due to the good efficacy of Council and Zechor in controlling barnyardgrass, their use in alternation with specific barnyard herbicides in the chemical management of barnyardgrass is suggested.