Reduction of Phenmedipham + Desmedipham + Ethofumesate Herbicides Dosage Based on Application Timing in Sugar Beet
An experiment was conducted to study possible reduction of concentration (dose) of phenmedipham + desmedipham + ethofumesate herbicides at different application times to control weeds in sugar beet field. Thus, a factorial experiment based on complete randomized block design with three replications...
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| Format: | Article |
| Language: | fas |
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Islamic Azad University, Tabriz Branch
2017-04-01
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| Series: | Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī |
| Subjects: | |
| Online Access: | http://jcep.iaut.ac.ir/article_529492_47384fc2f5db2f32ff8cf16e411ab028.pdf |
| _version_ | 1811308704489799680 |
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| author | Valiyolah Anabestani Mohammad Armin |
| author_facet | Valiyolah Anabestani Mohammad Armin |
| author_sort | Valiyolah Anabestani |
| collection | DOAJ |
| description | An experiment was conducted to study possible reduction of concentration (dose) of phenmedipham + desmedipham + ethofumesate herbicides at different application times to control weeds in sugar beet field. Thus, a factorial experiment based on complete randomized block design with three replications was performed at Sabzevar, Khorasan-e-Razavi in 2013. Factors consisted of herbicide dosages (control, 75% of the recommended dosage, and 125% of recommended dosage and application times at 2-4, 4-8 and 8-12 leaf stages of sugar beet. Herbicide used in the experiment was phenmedipham (9.2%) + desmedipham (7.2%) + ethofumesate (11.3%) (PROGRESS OF BETAMIX) as 877 ga.i ha-1 27.4 EC. The results indicated that the delayed application of herbicide increased weed density by 55.92% and weed dry matter by 33%. Application of herbicide at 4-8 leaf stage produced highest root and sugar yields. Root impurities were not affected by the time of herbicide application. Used of 125% of recommended dosage resulted in lowest weed density and weed dry matter and highest root and sugar yields. Impure sugar percentage and K content was not affected by herbicide dosage. Other root quality characteristics were not statistically significant different between the recommended dose 125% of recommended dosages. Results as a wholes suggested that at early growth stage of sugar beet (2-4 leaf stage) lower herbicide dosage and at later growth stage of sugar beet (8-12 leaf stage) higher herbicide dosage may produce highest root yield of sugar beet. |
| first_indexed | 2024-04-13T09:29:19Z |
| format | Article |
| id | doaj.art-aea0cc41183e4fa9ba975c803c6ac460 |
| institution | Directory Open Access Journal |
| issn | 2538-1822 2476-731X |
| language | fas |
| last_indexed | 2024-04-13T09:29:19Z |
| publishDate | 2017-04-01 |
| publisher | Islamic Azad University, Tabriz Branch |
| record_format | Article |
| series | Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī |
| spelling | doaj.art-aea0cc41183e4fa9ba975c803c6ac4602022-12-22T02:52:21ZfasIslamic Azad University, Tabriz BranchIkufīziyuluzhī-i Giyāhān-i Zirā̒ī2538-18222476-731X2017-04-01104(40) زمستان823838529492Reduction of Phenmedipham + Desmedipham + Ethofumesate Herbicides Dosage Based on Application Timing in Sugar BeetValiyolah Anabestani0Mohammad Armin1Department of Agronomy and Plant Breeding, Sabzevar Branch, Islamic Azad University, Sabzevar, IranAssociate Professor, Department of Agronomy and Plant Breeding, Sabzevar Branch, Islamic Azad University, Sabzevar, IranAn experiment was conducted to study possible reduction of concentration (dose) of phenmedipham + desmedipham + ethofumesate herbicides at different application times to control weeds in sugar beet field. Thus, a factorial experiment based on complete randomized block design with three replications was performed at Sabzevar, Khorasan-e-Razavi in 2013. Factors consisted of herbicide dosages (control, 75% of the recommended dosage, and 125% of recommended dosage and application times at 2-4, 4-8 and 8-12 leaf stages of sugar beet. Herbicide used in the experiment was phenmedipham (9.2%) + desmedipham (7.2%) + ethofumesate (11.3%) (PROGRESS OF BETAMIX) as 877 ga.i ha-1 27.4 EC. The results indicated that the delayed application of herbicide increased weed density by 55.92% and weed dry matter by 33%. Application of herbicide at 4-8 leaf stage produced highest root and sugar yields. Root impurities were not affected by the time of herbicide application. Used of 125% of recommended dosage resulted in lowest weed density and weed dry matter and highest root and sugar yields. Impure sugar percentage and K content was not affected by herbicide dosage. Other root quality characteristics were not statistically significant different between the recommended dose 125% of recommended dosages. Results as a wholes suggested that at early growth stage of sugar beet (2-4 leaf stage) lower herbicide dosage and at later growth stage of sugar beet (8-12 leaf stage) higher herbicide dosage may produce highest root yield of sugar beet.http://jcep.iaut.ac.ir/article_529492_47384fc2f5db2f32ff8cf16e411ab028.pdfHerbicidesQuantitative and qualitative yieldReduced dosageSugar beet |
| spellingShingle | Valiyolah Anabestani Mohammad Armin Reduction of Phenmedipham + Desmedipham + Ethofumesate Herbicides Dosage Based on Application Timing in Sugar Beet Ikufīziyuluzhī-i Giyāhān-i Zirā̒ī Herbicides Quantitative and qualitative yield Reduced dosage Sugar beet |
| title | Reduction of Phenmedipham + Desmedipham + Ethofumesate Herbicides Dosage Based on Application Timing in Sugar Beet |
| title_full | Reduction of Phenmedipham + Desmedipham + Ethofumesate Herbicides Dosage Based on Application Timing in Sugar Beet |
| title_fullStr | Reduction of Phenmedipham + Desmedipham + Ethofumesate Herbicides Dosage Based on Application Timing in Sugar Beet |
| title_full_unstemmed | Reduction of Phenmedipham + Desmedipham + Ethofumesate Herbicides Dosage Based on Application Timing in Sugar Beet |
| title_short | Reduction of Phenmedipham + Desmedipham + Ethofumesate Herbicides Dosage Based on Application Timing in Sugar Beet |
| title_sort | reduction of phenmedipham desmedipham ethofumesate herbicides dosage based on application timing in sugar beet |
| topic | Herbicides Quantitative and qualitative yield Reduced dosage Sugar beet |
| url | http://jcep.iaut.ac.ir/article_529492_47384fc2f5db2f32ff8cf16e411ab028.pdf |
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