Biblioteca Digital de VanguardiaAre plant growth retardants a strategy to decrease lodging and increase yield of sunflower?
One of the major disadvantages of sunflower cultivation is the increased plant height, making it prone to the lodging. The use of plant growth retardants can be an alternative strategy to reduce plant height; however, these compounds may affect productivity. The aim of this study was to evaluate the...
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| Formato: | info:eu-repo/semantics/article |
| Lenguaje: | Inglés |
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Federal University of Piauí
2016
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| Acceso en línea: | https://comunicatascientiae.com.br/comunicata/article/view/1286 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77783 |
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| author | Carvalho, Marcia Eugenia Amaral Castro, Paulo Roberto de Camargo e Ferraz Junior, Marcos Vinicius de Castro Mendes, Ana Carolina Cabrera Machado |
| author_facet | Carvalho, Marcia Eugenia Amaral Castro, Paulo Roberto de Camargo e Ferraz Junior, Marcos Vinicius de Castro Mendes, Ana Carolina Cabrera Machado |
| author_sort | Carvalho, Marcia Eugenia Amaral |
| collection | Repositorio |
| description | One of the major disadvantages of sunflower cultivation is the increased plant height, making it prone to the lodging. The use of plant growth retardants can be an alternative strategy to reduce plant height; however, these compounds may affect productivity. The aim of this study was to evaluate the effects of plant growth retardants on sunflower development and yield. Four treatments were studied: 1- control; 2- gibberellic acid (GA) 10 mg L−1; 3- trinexapac-ethyl (TE) 5 mL L−1, and 4- maleic hidrazide (MH) 8 mL L−1. TE and MH decreased plant height (16.9 and 35.9%, respectively); however, only TE positively influenced capitulim diameter and dry mass (46.7 and 311%, when compared to control) at 60 days after planting (DAP). At 81 DAP, dry mass of capitulum did not differ among control and TE-treated plants. On the other hand, MH impaired diameter and dry mass of capitulum (92.9 and 74.7%, respectively). It can be concluded that the application of TE is a potential strategy to decrease lodging probability without affecting sunflower yield. Furthermore, although MH negatively affected sunflower development, its use on the crop cannot be excluded since other doses, frequencies and moment of application can be studied. |
| format | info:eu-repo/semantics/article |
| id | clacso-CLACSO77783 |
| institution | CLACSO, Repositorio Digital |
| language | Inglés |
| publishDate | 2016 |
| publisher | Federal University of Piauí |
| record_format | greenstone |
| spelling | clacso-CLACSO777832022-03-21T20:07:49Z Are plant growth retardants a strategy to decrease lodging and increase yield of sunflower? Are plant growth retardants a strategy to decrease lodging and increase yield of sunflower? Carvalho, Marcia Eugenia Amaral Castro, Paulo Roberto de Camargo e Ferraz Junior, Marcos Vinicius de Castro Mendes, Ana Carolina Cabrera Machado Helianthus annuus maleic hidrazide trinexapac-ethyl Helianthus annuus maleic hidrazide trinexapac-ethyl One of the major disadvantages of sunflower cultivation is the increased plant height, making it prone to the lodging. The use of plant growth retardants can be an alternative strategy to reduce plant height; however, these compounds may affect productivity. The aim of this study was to evaluate the effects of plant growth retardants on sunflower development and yield. Four treatments were studied: 1- control; 2- gibberellic acid (GA) 10 mg L−1; 3- trinexapac-ethyl (TE) 5 mL L−1, and 4- maleic hidrazide (MH) 8 mL L−1. TE and MH decreased plant height (16.9 and 35.9%, respectively); however, only TE positively influenced capitulim diameter and dry mass (46.7 and 311%, when compared to control) at 60 days after planting (DAP). At 81 DAP, dry mass of capitulum did not differ among control and TE-treated plants. On the other hand, MH impaired diameter and dry mass of capitulum (92.9 and 74.7%, respectively). It can be concluded that the application of TE is a potential strategy to decrease lodging probability without affecting sunflower yield. Furthermore, although MH negatively affected sunflower development, its use on the crop cannot be excluded since other doses, frequencies and moment of application can be studied. One of the major disadvantages of sunflower cultivation is the increased plant height, making it prone to the lodging. The use of plant growth retardants can be an alternative strategy to reduce plant height; however, these compounds may affect productivity. The aim of this study was to evaluate the effects of plant growth retardants on sunflower development and yield. Four treatments were studied: 1- control; 2- gibberellic acid (GA) 10 mg L−1; 3- trinexapac-ethyl (TE) 5 mL L−1, and 4- maleic hidrazide (MH) 8 mL L−1. TE and MH decreased plant height (16.9 and 35.9%, respectively); however, only TE positively influenced capitulim diameter and dry mass (46.7 and 311%, when compared to control) at 60 days after planting (DAP). At 81 DAP, dry mass of capitulum did not differ among control and TE-treated plants. On the other hand, MH impaired diameter and dry mass of capitulum (92.9 and 74.7%, respectively). It can be concluded that the application of TE is a potential strategy to decrease lodging probability without affecting sunflower yield. Furthermore, although MH negatively affected sunflower development, its use on the crop cannot be excluded since other doses, frequencies and moment of application can be studied. 2016-05-10 2022-03-21T20:07:49Z 2022-03-21T20:07:49Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://comunicatascientiae.com.br/comunicata/article/view/1286 10.14295/cs.v7i1.1286 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77783 eng https://comunicatascientiae.com.br/comunicata/article/view/1286/391 https://comunicatascientiae.com.br/comunicata/article/view/1286/660 application/pdf application/msword Federal University of Piauí Comunicata Scientiae; Vol. 7 No. 1 (2016); 154-159 Comunicata Scientiae; v. 7 n. 1 (2016); 154-159 2177-5133 2176-9079 |
| spellingShingle | Helianthus annuus maleic hidrazide trinexapac-ethyl Helianthus annuus maleic hidrazide trinexapac-ethyl Carvalho, Marcia Eugenia Amaral Castro, Paulo Roberto de Camargo e Ferraz Junior, Marcos Vinicius de Castro Mendes, Ana Carolina Cabrera Machado Are plant growth retardants a strategy to decrease lodging and increase yield of sunflower? |
| title | Are plant growth retardants a strategy to decrease lodging and increase yield of sunflower? |
| title_full | Are plant growth retardants a strategy to decrease lodging and increase yield of sunflower? |
| title_fullStr | Are plant growth retardants a strategy to decrease lodging and increase yield of sunflower? |
| title_full_unstemmed | Are plant growth retardants a strategy to decrease lodging and increase yield of sunflower? |
| title_short | Are plant growth retardants a strategy to decrease lodging and increase yield of sunflower? |
| title_sort | are plant growth retardants a strategy to decrease lodging and increase yield of sunflower? |
| topic | Helianthus annuus maleic hidrazide trinexapac-ethyl Helianthus annuus maleic hidrazide trinexapac-ethyl |
| url | https://comunicatascientiae.com.br/comunicata/article/view/1286 http://biblioteca-repositorio.clacso.edu.ar/handle/CLACSO/77783 |