Impact of Imazamox and Imazapyr Carryover on Wheat, Barley, and Oat
Imazapyr and imazamox are frequently applied postemergence to control grass and broadleaf weeds in imidazolinone-resistant sunflower in Argentina. Herbicide carryover to rotational crops represents a disadvantage of these herbicides, particularly in regions with low rainfall during the months prior...
| Main Authors: | , , , , , , , |
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| Format: | Artículo |
| Language: | Inglés |
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2018
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| Online Access: | https://www.cambridge.org/core/journals/weed-technology/article/impact-of-imazamox-and-imazapyr-carryover-on-wheat-barley-and-oat/AC4793C8B5A52EA25E036AADB472FF1C http://hdl.handle.net/20.500.12123/2335 https://doi.org/10.1017/wet.2017.66 |
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| author | Scursoni, Julio Alejandro Montoya, Jorgelina Ceferina Vigna, Mario Raul Gigon, Ramon Istilart, Carolina Maria Renzi Pugni, Juan Pablo Lopez, Ricardo Porfiri, Carolina |
| author_browse | Gigon, Ramon Istilart, Carolina Maria Lopez, Ricardo Montoya, Jorgelina Ceferina Porfiri, Carolina Renzi Pugni, Juan Pablo Scursoni, Julio Alejandro Vigna, Mario Raul |
| author_facet | Scursoni, Julio Alejandro Montoya, Jorgelina Ceferina Vigna, Mario Raul Gigon, Ramon Istilart, Carolina Maria Renzi Pugni, Juan Pablo Lopez, Ricardo Porfiri, Carolina |
| author_sort | Scursoni, Julio Alejandro |
| collection | INTA Digital |
| description | Imazapyr and imazamox are frequently applied postemergence to control grass and broadleaf weeds in imidazolinone-resistant sunflower in Argentina. Herbicide carryover to rotational crops represents a disadvantage of these herbicides, particularly in regions with low rainfall during the months prior to rotational crop sowing. Between 2009 and 2012, field and greenhouse studies were conducted on four important sunflower-cropped areas of Argentina. The objective was to quantify the effects of imazapyr alone and imazamox plus imazapyr applied in sunflower crops on the subsequent establishment, growth, and yield of barley, oat, and wheat. In all field experiments, imazapyr alone and imazamox plus imazapyr were applied at recommended rates (80 gha–1 and 66 plus 30 gha–1, respectively), and also, in some experiments, at double the recommended rates. Soil bioassays were also conducted in the greenhouse to study the effect of these herbicides on barley, oat, and wheat seedlings. The mixture of imazamox plus imazapyr was safer for rotational crops than imazapyr applied alone, because of the reduced rate of imazapyr in the mixture treatments. Barley was more sensitive to imidazolinones, particularly imazapyr, than the other winter cereals. Imazapyr at double rate (160 gha–1) reduced barley yield by 45% when seeds were sown 165 d after herbicide application and with 240 mm rainfall after herbicide application. |
| format | Artículo |
| id | INTA2335 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| record_format | dspace |
| spelling | INTA23352018-06-26T13:43:13Z Impact of Imazamox and Imazapyr Carryover on Wheat, Barley, and Oat Scursoni, Julio Alejandro Montoya, Jorgelina Ceferina Vigna, Mario Raul Gigon, Ramon Istilart, Carolina Maria Renzi Pugni, Juan Pablo Lopez, Ricardo Porfiri, Carolina Imazamox Herbicidas con Imidazolinona Imazapir Herbicidas Trigo Cebada Avenas Malezas Imidazolinone Herbicides Imazapyr Herbicides Wheat Barley Oats Weeds Control de Malezas Imazapyr and imazamox are frequently applied postemergence to control grass and broadleaf weeds in imidazolinone-resistant sunflower in Argentina. Herbicide carryover to rotational crops represents a disadvantage of these herbicides, particularly in regions with low rainfall during the months prior to rotational crop sowing. Between 2009 and 2012, field and greenhouse studies were conducted on four important sunflower-cropped areas of Argentina. The objective was to quantify the effects of imazapyr alone and imazamox plus imazapyr applied in sunflower crops on the subsequent establishment, growth, and yield of barley, oat, and wheat. In all field experiments, imazapyr alone and imazamox plus imazapyr were applied at recommended rates (80 gha–1 and 66 plus 30 gha–1, respectively), and also, in some experiments, at double the recommended rates. Soil bioassays were also conducted in the greenhouse to study the effect of these herbicides on barley, oat, and wheat seedlings. The mixture of imazamox plus imazapyr was safer for rotational crops than imazapyr applied alone, because of the reduced rate of imazapyr in the mixture treatments. Barley was more sensitive to imidazolinones, particularly imazapyr, than the other winter cereals. Imazapyr at double rate (160 gha–1) reduced barley yield by 45% when seeds were sown 165 d after herbicide application and with 240 mm rainfall after herbicide application. EEA Anguil EEA Bordenave EEA Barrow EEA Hilario Ascasubi Fil: Scursoni, Julio Alejandro. Universidad de Buenos Aires. Facultad de Agronomía. Departamento de Producción Vegetal; Argentina Fil: Montoya, Jorgelina Ceferina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina Fil: Vigna, Mario Raúl. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina Fil: Gigón, Ramón. Instituto Nacional de Tecnología Agropecuaria (INTA). Chacra Experimental Integrada Barrow; Argentina Fil: Istilart, Carolina Maria. Instituto Nacional de Tecnología Agropecuaria (INTA). Chacra Experimental Integrada Barrow; Argentina Fil: Renzi Pugni, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Hilario Ascasubi; Argentina. Fil: López, Ricardo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Bordenave; Argentina Fil: Porfiri, Carolina. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Anguil; Argentina 2018-05-07T13:10:56Z 2018-05-07T13:10:56Z 2017-12 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://www.cambridge.org/core/journals/weed-technology/article/impact-of-imazamox-and-imazapyr-carryover-on-wheat-barley-and-oat/AC4793C8B5A52EA25E036AADB472FF1C http://hdl.handle.net/20.500.12123/2335 0890-037X 1550-2740 https://doi.org/10.1017/wet.2017.66 eng info:eu-repo/semantics/restrictedAccess application/pdf Weed technology 31 (6) : 838-846. (November-December 2017) |
| spellingShingle | Imazamox Herbicidas con Imidazolinona Imazapir Herbicidas Trigo Cebada Avenas Malezas Imidazolinone Herbicides Imazapyr Herbicides Wheat Barley Oats Weeds Control de Malezas Scursoni, Julio Alejandro Montoya, Jorgelina Ceferina Vigna, Mario Raul Gigon, Ramon Istilart, Carolina Maria Renzi Pugni, Juan Pablo Lopez, Ricardo Porfiri, Carolina Impact of Imazamox and Imazapyr Carryover on Wheat, Barley, and Oat |
| title | Impact of Imazamox and Imazapyr Carryover on Wheat, Barley, and Oat |
| title_full | Impact of Imazamox and Imazapyr Carryover on Wheat, Barley, and Oat |
| title_fullStr | Impact of Imazamox and Imazapyr Carryover on Wheat, Barley, and Oat |
| title_full_unstemmed | Impact of Imazamox and Imazapyr Carryover on Wheat, Barley, and Oat |
| title_short | Impact of Imazamox and Imazapyr Carryover on Wheat, Barley, and Oat |
| title_sort | impact of imazamox and imazapyr carryover on wheat barley and oat |
| topic | Imazamox Herbicidas con Imidazolinona Imazapir Herbicidas Trigo Cebada Avenas Malezas Imidazolinone Herbicides Imazapyr Herbicides Wheat Barley Oats Weeds Control de Malezas |
| url | https://www.cambridge.org/core/journals/weed-technology/article/impact-of-imazamox-and-imazapyr-carryover-on-wheat-barley-and-oat/AC4793C8B5A52EA25E036AADB472FF1C http://hdl.handle.net/20.500.12123/2335 https://doi.org/10.1017/wet.2017.66 |
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