Evaluation the effect of herbicides on weed management and grain yield of rice genotypes in direct-seeded conditions

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Rajabian Maryam; ASGHARI JAFAR; EHTESHAMI SEYYED MOHAMMAD REZA; Yaghoobi Bijan

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Journal: Iranian Journal of Field Crop Science Year:2018 | Volume:49 | Issue:1 Page(s): 125-141

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Title

Evaluation the effect of herbicides on weed management and grain yield of rice genotypes in direct-seeded conditions

Author(s)

Rajabian Maryam | ASGHARI JAFAR | EHTESHAMI SEYYED MOHAMMAD REZA | Yaghoobi Bijan | Issue Writer Certificate

Keywords

Bensulfuron-methylQ1

cyhalofop-butylQ1

pendimethalinQ1

pretilachlorQ2

propanil.Q1

Abstract

In order to evaluate the effect of herbicides on weed management and grain yield of different rice genotypes, an experiment was conducted at Rice Research Institute of Iran in Rasht during 2015-16 cropping season. The experiment was laid out in a split plot based on randomized complete block design with three replications. The treatments included five levels of weed management as 1-sequential application of pendimethalin followed by Bensulfuron-methyl followed by cyhalofop-butyl; 2-sequential application of pretilachlor followed by Bensulfuron-methyl followed by cyhalofop-butyl; 3-sequential application of pendimathelin followed by Bensulfuron-methyl followed by propanil. 4-sequential application of pretilachlor followed by Bensulfuron-methyl followed by propanil. along with 5-weedy check (without using herbicide) under natural weed flora as the main plots and ten rice genotypes as subplots. The results showed that the effects of genotype, weed management and their interaction was significant on all traits including weed biomass, plant height, yield components and grain yield of rice. Rice genotypes showed different responses in terms of evaluated traits at each level of weed management, which may be related to different genetic characteristics and competitive ability of genotypes. All herbicide treatments significantly reduced the weed biomass and increased grain yield of all genotypes compared with weedy checkت however sequential application of pretilachlor followed by Bensulfuron-methyl followed by propanil.is the best herbicide combination because of the least weed biomss and highest weed control efficiency and also the highest grain yield in all genotypes. It seems that this combination of herbicides can be a good alternative for hand weeding in order to reduce labor costs and more economical production of rice.

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APA: Copy

Rajabian, Maryam, ASGHARI, JAFAR, EHTESHAMI, SEYYED MOHAMMAD REZA, & Yaghoobi, Bijan. (2018). Evaluation the effect of herbicides on weed management and grain yield of rice genotypes in direct-seeded conditions. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), 49(1 ), 125-141. SID. https://sid.ir/paper/153613/en

Vancouver: Copy

Rajabian Maryam, ASGHARI JAFAR, EHTESHAMI SEYYED MOHAMMAD REZA, Yaghoobi Bijan. Evaluation the effect of herbicides on weed management and grain yield of rice genotypes in direct-seeded conditions. IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES)[Internet]. 2018;49(1 ):125-141. Available from: https://sid.ir/paper/153613/en

IEEE: Copy

Maryam Rajabian, JAFAR ASGHARI, SEYYED MOHAMMAD REZA EHTESHAMI, and Bijan Yaghoobi, “Evaluation the effect of herbicides on weed management and grain yield of rice genotypes in direct-seeded conditions,” IRANIAN JOURNAL OF FIELD CROP SCIENCE (IRANIAN JOURNAL OF AGRICULTURAL SCIENCES), vol. 49, no. 1 , pp. 125–141, 2018, [Online]. Available: https://sid.ir/paper/153613/en

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