ﻣﻘﺎﻳﺴﻪ واﻛﻨﺶ ﻋﻠﻒﻫﺮز ﺳﻮروف ﺑﺮﻧﺞ" ( Echinochloa oryzoides ) ﺑﻪ ﻋﻠﻒﻛﺶﻫﺎی ﺑﻮﺗﺎﻛﻠﺮ و ﭘﻨﺪﻳﻤﺘﺎﻟﻴﻦ
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عنوان دوره: سیزدهمین کنگره زراعت و اصلاح نباتات ایران
نویسندگان
1داﻧﺸﺠﻮی ﺳﺎﺑﻖ ﻛﺎرﺷﻨﺎﺳﻲ زراﻋﺖ و اﺻﻼح ﻧﺒﺎﺗﺎت داﻧﺸﮕﺎه ﮔﻴﻼن،
2اﺳﺘﺎدﻳﺎر ﻣﺆﺳﺴﻪ ﺗﺤﻘﻴﻘﺎت ﺑﺮﻧﺞ کشور- رشت
3دانشجوی کارشناسی ارشد دانشگاه آزاد اسلامی چالوس
چکیده
ﺳﻮروف ﻣﻬـﻢ ﺗـﺮﻳﻦ ﻋﻠـﻒ ﻫـﺮز ﺷـﺎﻟﻴﺰار در ﺗﻤـﺎم دﻧﻴـﺎ ﺑـﻪ ﺷـﻤﺎر ﻣـﻲ رود. در ﺳـﺎل ﻫـﺎ ی اﺧﻴـ ﺮ ﮔﻮﻧـﻪ ﺟﺪ ﻳـ ﺪی از ﺳـﻮروف ﺑـﻪ ﻧـﺎم ﺳﻮروف ﺑﺮﻧﺞ" در ﺷﺎﻟﻴﺰارﻫﺎ ﮔﺰارش ﺷـﺪه اﺳـﺖ ﻛـ ﻪ دارای ﺷـﺒﺎﻫﺖ ﺑﻴﺸـﺘﺮ ﺑـﻪ ﺑـﺮﻧﺞ ﺑـﻮده و ﻣﺘﺤﻤـﻞ ﺑـﻪ ﻏﺮﻗـﺎب اﺳـﺖ. ﺗـﺎ ﻛﻨﻮن ﻣﻄﺎﻟﻌﻪای در ﺧﺼﻮص واﻛﻨﺶ اﻳﻦ ﮔﻮﻧﻪ ﺑﻪ ﻋﻠﻒﻛـ ﺶﻫـﺎ اﻧﺠـﺎم ﻧﺸـﺪه اﺳـﺖ. ﺑﻌـﻼوه ﺑﻮﺗـﺎ ﻛﻠﺮ ﺑـﻪ ﻋﻨـﻮان ﻋﻠـﻒ ﻛـ ﺶ ﻏﺎﻟـﺐ ﺟﻬـﺖ ﻛﻨﺘﺮل ﺳﻮروف در ﺷﺎﻟﻴﺰار ﺑﺎ ﺣـﺪود ﻧـ ﻴﻢ ﻗـﺮن ﺳـﺎﺑﻘﻪ ﻣﺼـﺮف اﺳـﺖ. ا ﻳـ ﻦ آزﻣـﺎ ﻳﺶ ﺟﻬـﺖ ارزﻳـﺎﺑﻲ ﻛـ ﺎراﻳﻲ ﻋﻠـﻒ ﻛـ ﺶ ﺑﻮﺗـﺎ ﻛﻠﺮ و ﻣﻘﺎﻳﺴــﻪ آن ﺑــﺎ ﻋﻠــﻒﻛــﺶ ﭘﻨــﺪﻳﻤﺘﺎﻟﻴﻦ، دﻳﮕــﺮ ﺑﺎرﻳــﻚﺑــﺮگﻛــﺶ در دﺳــﺖ ﺑﺮرﺳــﻲ ﺟﻬــﺖ ﻣﻌﺮﻓــﻲ در ﺷــﺎﻟﻴﺰار در دزﻫــﺎی )ﺻــﻔﺮ،0/5، 0/1، 0/01، 0/002، 0/001، 0/0001 درﺻــﺪ ﻧﺴــﺒﺖ ﺑــﻪ دز ﺗﻮﺻــﻴﻪ ﺷــﺪه( اﺟــﺮا ﺷــﺪ. ﻧﺘــﺎ ﻳﺞ ﻧﺸــﺎن داد ﻛــﻪ دز ﻻزم ﺑــﺮای 50% ﻛــﺎﻫﺶ در رﺷــﺪ ﺳــﺎﻗﻪﭼــﻪ و رﻳﺸــﻪﭼــﻪ Ec50( ﺳــﻮروف ﺑــﺮای دو ﻋﻠــﻒﻛــﺶ ﻣــﻮرد ﺑﺮرﺳــﻲ ﻣﺸــﺎﺑﻪ ﺑــﻮد و دز 0/1 درﺻــﺪ ﻧﺴﺒﺖ ﺑﻪ دز ﺗﻮﺻﻴﻪ ﺷـﺪه ﻫـﺮ دو ﻋﻠـﻒ ﻛـ ﺶ ﺳـﺒﺐ100 درﺻـﺪ ﻣـﺮگ و ﻣ ﻴـ ﺮ ﮔﻴﺎﻫﭽـﻪ ﻫـﺎ ی ﺳـﻮروف ﺷـﺪ. ﺑـﺮ اﺳـﺎس ﻧﺘـﺎ ﻳﺞ اﻳـ ﻦ ﺗﺤﻘﻴﻖ ﺑـﻪ ﻧﻈـﺮ ﻣـ ﻲرﺳـﺪ ﺑـﻪ دﻟ ﻴـ ﻞ ﺑﻬـﺮه ﮔﻴـ ﺮی از روش ﻣﺒـﺎرزه ﺗﻠﻔ ﻴﻘـ ﻲ و وﺟـ ﻴﻦ دﺳـﺘ ﻲ، ﻋﻠـﻒ ﻛـ ﺶ ﺑﻮﺗـﺎ ﻛﻠﺮ ﭘـﺲ از ﭼﻬـﺎر دﻫـﻪ
دارای ﻛﺎراﻳﻲ ﻛﺎﻓﻲ و ﻣﺸﺎﺑﻪ ﻋﻠﻒﻛﺶ ﺟﺪﻳﺪ در ﻛﻨﺘﺮل ﺳﻮروف اﺳﺖ.
دارای ﻛﺎراﻳﻲ ﻛﺎﻓﻲ و ﻣﺸﺎﺑﻪ ﻋﻠﻒﻛﺶ ﺟﺪﻳﺪ در ﻛﻨﺘﺮل ﺳﻮروف اﺳﺖ.
کلیدواژه ها
Title
Comparison the response of watergrass (Echinochloa oryzoides) to herbicides pendimethalin and butachlor
Authors
Abstract
Barnyardgrass is the most troublesome weed in rice production. In recent years new species (Echinochloa oryzoides) of barnyardgrass have been reported in the paddy fields which has more similarity to rice and tolerant to flooding. Response of this species to herbicides has not been studied until now. In addition, butachlor has about half a century history of usage in rice fields. This experiment was conducted in order to evaluate the efficacy of butachlor in comparison with pendimethalin in doses (0, 0.5, 0.1, 0.01, 0.002, 0.001, 0.0001 present the recommended dose) in control of barnyardgrass. The study results showed that the dose required to inhibit 50% seedling were similar for two herbicides and the dose of 0.1 recommended dose 100% inhibition of barnyardgrass seedling were registered. Overall, based on the results of this research it seems that because of integrated weed management system and hand weeding, butachlor application after about half a century usage still has enough efficacy in barnyardgrass control, similar to new herbicide pendimethalin.
Keywords
Barnyardgrass- Dose- Herbicide- Resistance- Seedlings height