مطالعه واکنش برخی ارقام برنج به علفکش پندیمتالین
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عنوان دوره: سیزدهمین کنگره زراعت و اصلاح نباتات ایران
نویسندگان
1داﻧﺸﺠﻮی ﻛﺎرﺷﻨﺎﺳﻲ ارﺷﺪ داﻧﺸﮕﺎه آزاد اﺳﻼﻣﻲ ﭼﺎﻟﻮس
2اﺳﺘﺎدﻳﺎر ﻣﺆﺳﺴﻪ ﺗﺤﻘﻴﻘﺎت ﺑﺮﻧﺞ ﻛﺸﻮر
3اﺳﺘﺎدﻳﺎر داﻧﺸﮕﺎه آزاد اﺳﻼﻣﻲ ﭼﺎﻟﻮس
چکیده
واﻛﻨﺶ ﻋﻠﻒﻫﺎی ﻫﺮز ﻣﻬﻢ ﺷﺎﻟﻴﺰار و ارﻗﺎم ﺑﺮﻧﺞ ﻫﺎﺷﻤﻲ، ﺧﺰر و ﻻﻳﻦ 416 ﺑﻪ دزﻫﺎی 0، 1، 2 و 3 ﺑﺮاﺑﺮ دز ﺗﻮﺻﻴﻪ ﺷﺪه ﻋﻠﻒﻛﺶ ﭘﻨﺪﻳﻤﺘﺎﻟﻴﻦ ارزﻳﺎﺑﻲ ﺷﺪ. ﻛﻨﺘﺮل ﻋﻠﻒﻫﺎی ﻫﺮز ﺗﺎ 6 ﻫﻔﺘﻪ ﭘﺲ از ﻧﺸﺎءﻛﺎری ، ﺑﻴﺶ از 95% ﺑﺮای ﻋﻠﻒﻫﺎی ﻫﺮز ﺑﻮد. ﺣﺪاﻛﺜﺮ ﮔﻴﺎهﺳﻮزی ﺑﺮﻧﺞ ﺑﻪ ﺗﺮﺗﻴﺐ 23، 16 و 12 درﺻﺪ در ارﻗﺎم ﻫﺎﺷﻤﻲ، ﺧﺰر و ﻻﻳﻦ 416 در دو ﻫﻔﺘﻪ ﭘﺲ از ﻛﺎرﺑﺮد ﻋﻠﻒﻛﺶ و در ﺷﺶ ﻫﻔﺘﻪ ﺑﻪ ﻛﻤﺘﺮ از 5 ﻛﺎﻫﺶ ﻳﺎﻓﺖ. دز 50 درﺻﺪی ﮔﻴﺎهﺳﻮزی ارﻗﺎم ﻣﺘﻔﺎوت ﺑﻮد و ﺑﻴﺎﻧﮕﺮ ﺗﺤﻤﻞ ﺑﻴﺸﺘﺮ ﻻﻳﻦ 416 ﺑﻪ ﻋﻠﻒﻛﺶ ﭘﻨﺪﻳﻤﺘﺎﻟﻴﻦ ﺑﻮد. ﺑﻴﺸﺘﺮﻳﻦ ﻋﻤﻠﻜﺮد ﺑﻴﻮﻟﻮژﻳﻜﻲ در ﺗﻴﻤﺎر ﺳﻪ ﺑﺮاﺑﺮ دز ﺗﻮﺻﻴﻪ ﺷﺪه در ﻻﻳﻦ 416 و ﻛﻤﺘﺮﻳﻦ ﻋﻤﻠﻜﺮد ﺑﻴﻮﻟﻮژﻳﻚ ﺑﺮﻧﺞ در رﻗﻢ ﻫﺎﺷﻤﻲ ﻣﺸﺎﻫﺪه ﺷﺪ. ﻋﻤﻠﻜﺮد ﺑﻴﻮﻟﻮژﻳﻚ ارﻗﺎم ﻣﻮرد ﻣﻄﺎﻟﻌﻪ ﺑﻄﻮر ﻣﺘﻮﺳﻂ ﻧﺴﺒﺖ ﺑﻪ ﺷﺎﻫﺪ 700 درﺻﺪ ﺑﻴﺸﺘﺮ ﺑﻮد. ﺑﺮرﺳﻲ روﻧﺪ ﺗﻮﻟﻴﺪ داﻧﻪ در دزﻫﺎی ﻣﺨﺘﻠﻒ ﭘﻨﺪﻳﻤﺘﺎﻟﻴﻦ ﻧﺸﺎن داد ﻛﻪ ﻻﻳﻦ 416 دارای ﺑﻴﺸﺘﺮﻳﻦ و رﻗﻢ ﻫﺎﺷﻤﻲ دارای ﻛﻤﺘﺮﻳﻦ ﻋﻤﻠﻜﺮد ﺑﻮد و ﻋﻤﻠﻜﺮد ﺷﻠﺘﻮک در دزﻫﺎی ﺗﺎ ﺳﻪ ﺑﺮاﺑﺮ دز ﺗﻮﺻﻴﻪ ﺷﺪه ﻋﻠﻒﻛﺶ ﭘﻨﺪﻳﻤﺘﺎﻟﻴﻦ ﻣﺸﺎﺑﻪ ﺑﻮد. ﺑﻄﻮر ﻛﻠﻲ ﺑﺮ اﺳﺎس ﻧﺘﺎﻳﺞ اﻳﻦ ﺑﺮرﺳﻲ، ﭘﻨﺪﻳﻤﺘﺎﻟﻴﻦ دارای ﺳﺎزﮔﺎری ﺧﻮب ﺑﺎ ﺑﻦﺳﻮﻟﻔﻮرونﻣﺘﻴﻞ در ﻛﻨﺘﺮل ﻋﻠﻒﻫﺎی ﻫﺮز ﺷﺎﻟﻴﺰار ﺑﻮد و ارﻗﺎم ﺑﺮﻧﺞ ﻫﻢ دارای ﺗﺤﻤﻞ ﺧﻮﺑﻲ ﺑﻪ اﻳﻦ ﻋﻠﻒﻛﺶ ﺑﻮدﻧﺪ.
کلیدواژه ها
Title
Study the response of some rice cultivars to Pendimethalin herbicide
Authors
Abstract
Institute of Iran. 3-Assistant professor of Azad University of chalous
Abstract
Response of paddy weeds and rice cultivars Khazar, Hashemi and line 416 were studied to pendimethalin dose (0, 1, 2 and 3 times of recommended dose). Results showed that weed control up to 6-WAT was more than 95%. Maximum phytotoxicity in Hashemi, Khazar and Line 416 were 23, 16 and 12 % respectively 2-WAT and decreased to less than 5% in 6-WAT. Dose 50% phytotoxicity in cultivars was different between cultivars implying more tolerance of Line 416 to Pendimethalin. The most and least biological yield was recorded in 3-times more and recommended dose of Pendimethalin in Line 420 and Hashemi respectively. Biological yield of cultivars was 700% more compared with control. Grain yield in Line 416 was more than two other cultivar in all doses and Hashemi cultivar showed the least yield. Grain yield in all 3 investigated doses was similar, Overall based on the results of this study pendimethalin showed good efficacy in weed control in paddy rice and rice cultivars were tolerant to pendimethalin.
Abstract
Response of paddy weeds and rice cultivars Khazar, Hashemi and line 416 were studied to pendimethalin dose (0, 1, 2 and 3 times of recommended dose). Results showed that weed control up to 6-WAT was more than 95%. Maximum phytotoxicity in Hashemi, Khazar and Line 416 were 23, 16 and 12 % respectively 2-WAT and decreased to less than 5% in 6-WAT. Dose 50% phytotoxicity in cultivars was different between cultivars implying more tolerance of Line 416 to Pendimethalin. The most and least biological yield was recorded in 3-times more and recommended dose of Pendimethalin in Line 420 and Hashemi respectively. Biological yield of cultivars was 700% more compared with control. Grain yield in Line 416 was more than two other cultivar in all doses and Hashemi cultivar showed the least yield. Grain yield in all 3 investigated doses was similar, Overall based on the results of this study pendimethalin showed good efficacy in weed control in paddy rice and rice cultivars were tolerant to pendimethalin.
Keywords
rice, Herbicide Dose, Phytotoxicity