Paclobutrazol for height control of petunias
The effects of paclobutrazol on the height of Petunia × hybrida hort. ex E. Vilm. were studied. An experiment on 'Bravo F1' was performed at the National Institute for Agricultural Technology (INTA), San Pedro Agricultural Experimental Station (33º4’ S, 59º4’ W), Buenos Aires Province, Argentina, in...
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| Format: | info:ar-repo/semantics/artículo |
| Language: | Español |
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Instituto de Investigaciones Agropecuarias (INIA. Chile)
2019
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| Subjects: | |
| Online Access: | http://www.chileanjar.cl/files/V68I3A10_es.pdf http://hdl.handle.net/20.500.12123/6505 http://dx.doi.org/10.4067/S0718-58392008000300012 |
| _version_ | 1855035688631664640 |
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| author | Francescangeli, Nora Zagabria, Ana |
| author_browse | Francescangeli, Nora Zagabria, Ana |
| author_facet | Francescangeli, Nora Zagabria, Ana |
| author_sort | Francescangeli, Nora |
| collection | INTA Digital |
| description | The effects of paclobutrazol on the height of Petunia × hybrida hort. ex E. Vilm. were studied. An experiment on 'Bravo F1' was performed at the National Institute for Agricultural Technology (INTA), San Pedro Agricultural Experimental Station (33º4’ S, 59º4’ W), Buenos Aires Province, Argentina, in the spring of 2006. Treatments consisted of three colours of flower (white, red and blue), four concentrations of paclobutrazol by irrigation (0, 5, 10 and 15 mg L-1 and three application times (at 10-12, 18-20 and 26-28 leaves). Height at 45 d after transplanting (dat), days to appearance, opening and fall of the first flower and number of flowers at 21 and 45 dat were registered. Differences between control plants due to flower colour were detected, and would indicate the need of a differential management: at 45 dat, the height of red-flowered plants (22.3 cm) was less (P < 0.05) than white- (25.2 cm) or blue-flowered plants (26.4 cm). Paclobutrazol allowed for reducing height in all treated plants. The minimal concentrations that induced maximum effects were: 10 mg L-1 for blue-flowered plants (56% shortening), 5 mg L-1 for white-flowered plants (40% shortening) and 10 mg L-1 for red-flowered plants (38% shortening). In order to minimize the slightly deleterious effects detected in the number of blue and red flowers at 45 dat, early application would be advisable (10-12 leaves) for blue-flowered plants and more delayed (at 18-20 leaves) for red-flowered plants. |
| format | info:ar-repo/semantics/artículo |
| id | INTA6505 |
| institution | Instituto Nacional de Tecnología Agropecuaria (INTA -Argentina) |
| language | Español |
| publishDate | 2019 |
| publishDateRange | 2019 |
| publishDateSort | 2019 |
| publisher | Instituto de Investigaciones Agropecuarias (INIA. Chile) |
| publisherStr | Instituto de Investigaciones Agropecuarias (INIA. Chile) |
| record_format | dspace |
| spelling | INTA65052019-12-13T11:51:42Z Paclobutrazol for height control of petunias Francescangeli, Nora Zagabria, Ana Monocarpos Ornamentales Petunia Plantas en Macetas Inhibidores del Crecimiento Paclobutrazol Control del Crecimiento Ornamental Monocarps Pot Plants Growth Inhibitors Growth Control Arquitectura de la Planta Color de la Flor Plant Architecture Flower Colour The effects of paclobutrazol on the height of Petunia × hybrida hort. ex E. Vilm. were studied. An experiment on 'Bravo F1' was performed at the National Institute for Agricultural Technology (INTA), San Pedro Agricultural Experimental Station (33º4’ S, 59º4’ W), Buenos Aires Province, Argentina, in the spring of 2006. Treatments consisted of three colours of flower (white, red and blue), four concentrations of paclobutrazol by irrigation (0, 5, 10 and 15 mg L-1 and three application times (at 10-12, 18-20 and 26-28 leaves). Height at 45 d after transplanting (dat), days to appearance, opening and fall of the first flower and number of flowers at 21 and 45 dat were registered. Differences between control plants due to flower colour were detected, and would indicate the need of a differential management: at 45 dat, the height of red-flowered plants (22.3 cm) was less (P < 0.05) than white- (25.2 cm) or blue-flowered plants (26.4 cm). Paclobutrazol allowed for reducing height in all treated plants. The minimal concentrations that induced maximum effects were: 10 mg L-1 for blue-flowered plants (56% shortening), 5 mg L-1 for white-flowered plants (40% shortening) and 10 mg L-1 for red-flowered plants (38% shortening). In order to minimize the slightly deleterious effects detected in the number of blue and red flowers at 45 dat, early application would be advisable (10-12 leaves) for blue-flowered plants and more delayed (at 18-20 leaves) for red-flowered plants. Para estudiar los efectos del paclobutrazol en la altura de petunia (Petunia × hybrida hort. ex E. Vilm.), se desarrolló un experimento sobre el cv. Bravo F1 en la Estación Experimental Agropecuaria San Pedro (33º4’ S, 59º4’ O) del Instituto Nacional de Tecnología Agropecuaria (INTA), Provincia de Buenos Aires, Argentina durante la primavera de 2006. Los tratamientos consistieron en tres colores de flor (blanco, red y azul), cuatro concentraciones de paclobutrazol aplicadas por riego (0; 5; 10 y 15 mg L-1) y tres momentos de aplicación (10-12, 18-20 y 26-28 hojas). Se registraron: altura 45 días después del trasplante (ddt), días a aparición, apertura y caída de primera flor y número de flores a 21 y 45 ddt. Se detectaron diferencias entre testigos debidas al color de flor, resultado que indicaría la necesidad de un manejo diferencial: a 45 ddt la altura de plantas con flores rojas (22,3 cm) fue menor a la de plantas con flores blancas (25,2 cm) o azules (26,4 cm). El paclobutrazol redujo la altura en todas las plantas tratadas. Las concentraciones mínimas con las que se observaron los máximos efectos fueron: 10 mg L-1 para plantas de flor azul (reducción: 56%), 5 mg L-1 para plantas de flor blanca (reducción: 40%) y 10 mg L-1 para plantas de flor roja (reducción: 38%). Para minimizar efectos levemente deletéreos detectados en número de blue flowers y rojas a 45 ddt; sería conveniente para azul una aplicación temprana (10-12 hojas) y para rojo una más tardía (desde 18-20 hojas). EEA San Pedro Fil: Francescangeli, Nora. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Pedro; Argentina Fil: Zagabria, Ana. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria San Pedro; Argentina 2019-12-13T11:27:57Z 2019-12-13T11:27:57Z 2008 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://www.chileanjar.cl/files/V68I3A10_es.pdf http://hdl.handle.net/20.500.12123/6505 0718-5820 0718-5839 (en línea) http://dx.doi.org/10.4067/S0718-58392008000300012 spa info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf Instituto de Investigaciones Agropecuarias (INIA. Chile) Chilean journal of agricultural research 68 (3) : 309-314 (jul.-sept. 2008) |
| spellingShingle | Monocarpos Ornamentales Petunia Plantas en Macetas Inhibidores del Crecimiento Paclobutrazol Control del Crecimiento Ornamental Monocarps Pot Plants Growth Inhibitors Growth Control Arquitectura de la Planta Color de la Flor Plant Architecture Flower Colour Francescangeli, Nora Zagabria, Ana Paclobutrazol for height control of petunias |
| title | Paclobutrazol for height control of petunias |
| title_full | Paclobutrazol for height control of petunias |
| title_fullStr | Paclobutrazol for height control of petunias |
| title_full_unstemmed | Paclobutrazol for height control of petunias |
| title_short | Paclobutrazol for height control of petunias |
| title_sort | paclobutrazol for height control of petunias |
| topic | Monocarpos Ornamentales Petunia Plantas en Macetas Inhibidores del Crecimiento Paclobutrazol Control del Crecimiento Ornamental Monocarps Pot Plants Growth Inhibitors Growth Control Arquitectura de la Planta Color de la Flor Plant Architecture Flower Colour |
| url | http://www.chileanjar.cl/files/V68I3A10_es.pdf http://hdl.handle.net/20.500.12123/6505 http://dx.doi.org/10.4067/S0718-58392008000300012 |
| work_keys_str_mv | AT francescangelinora paclobutrazolforheightcontrolofpetunias AT zagabriaana paclobutrazolforheightcontrolofpetunias |