Rootstock-mediated physiological and fruit set responses in pepper under heat stress
An increase in high temperature causes major losses in pepper yields, especially in greenhouses when extending the cropping season to late spring or summer in mild climate areas. Grafting has been identified as a possible tool to cope with this abiotic stress. The objective of this study was to anal...
| Autores principales: | , , , |
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| Formato: | article |
| Lenguaje: | Inglés |
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Elsevier
2024
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| Materias: | |
| Acceso en línea: | https://hdl.handle.net/20.500.11939/8848 https://www.sciencedirect.com/science/article/pii/S0304423822008093 |
| _version_ | 1855032865525334016 |
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| author | Gisbert-Mullor, Ramón Padilla, Yaiza Gara Calatayud, Ángeles López-Galarza, Salvador |
| author_browse | Calatayud, Ángeles Gisbert-Mullor, Ramón López-Galarza, Salvador Padilla, Yaiza Gara |
| author_facet | Gisbert-Mullor, Ramón Padilla, Yaiza Gara Calatayud, Ángeles López-Galarza, Salvador |
| author_sort | Gisbert-Mullor, Ramón |
| collection | ReDivia |
| description | An increase in high temperature causes major losses in pepper yields, especially in greenhouses when extending the cropping season to late spring or summer in mild climate areas. Grafting has been identified as a possible tool to cope with this abiotic stress. The objective of this study was to analyze the heat stress impact on a sweet pepper variety grafted onto rootstocks with diverse heat stress tolerances to evaluate high-temperature effects on the leaf metabolism, pollen traits and fruit set. To do so, under two greenhouses conditions (28/22°C and 38/22°C for control and heat stress, respectively), we compared the variety grafted onto two rootstocks (VA/A57 and VA/A55, tolerant and nontolerant, respectively), and used varieties ungrafted (VA) and self-grafted (VA/VA) as controls. VA/A57 obtained the lowest electrolyte leakage, non-disturbed chlorophyll and carotenoids concentration values, increased ascorbic acid and phenols concentrations, and no hydrogen peroxide accumulation. These findings indicate better predisposition to overcome heat stress than other plant combinations. Such physiological responses in leaves conferred by the tolerant rootstock coincided with the highest proline concentration in anthers, and better pollen germination and fruit set compared to the other graft combinations. We conclude that grafting peppers onto a heat stress-tolerant rootstock, such as A57, could overcome negative high-temperature effects better than an ungrafted variety. Moreover, the better physiological performance noted in vegetative parts conferred by a heat stress-tolerant rootstock would also lead to better performance in the reproductive development phase. All this indicates that using tolerant rootstocks in pepper could be an interesting method to alleviate heat stress effects on this crop. |
| format | article |
| id | ReDivia8848 |
| institution | Instituto Valenciano de Investigaciones Agrarias (IVIA) |
| language | Inglés |
| publishDate | 2024 |
| publishDateRange | 2024 |
| publishDateSort | 2024 |
| publisher | Elsevier |
| publisherStr | Elsevier |
| record_format | dspace |
| spelling | ReDivia88482025-04-25T14:49:33Z Rootstock-mediated physiological and fruit set responses in pepper under heat stress Gisbert-Mullor, Ramón Padilla, Yaiza Gara Calatayud, Ángeles López-Galarza, Salvador Graft F62 Plant physiology - Growth and development Capsicum annuum Pollen High temperature Antioxidants An increase in high temperature causes major losses in pepper yields, especially in greenhouses when extending the cropping season to late spring or summer in mild climate areas. Grafting has been identified as a possible tool to cope with this abiotic stress. The objective of this study was to analyze the heat stress impact on a sweet pepper variety grafted onto rootstocks with diverse heat stress tolerances to evaluate high-temperature effects on the leaf metabolism, pollen traits and fruit set. To do so, under two greenhouses conditions (28/22°C and 38/22°C for control and heat stress, respectively), we compared the variety grafted onto two rootstocks (VA/A57 and VA/A55, tolerant and nontolerant, respectively), and used varieties ungrafted (VA) and self-grafted (VA/VA) as controls. VA/A57 obtained the lowest electrolyte leakage, non-disturbed chlorophyll and carotenoids concentration values, increased ascorbic acid and phenols concentrations, and no hydrogen peroxide accumulation. These findings indicate better predisposition to overcome heat stress than other plant combinations. Such physiological responses in leaves conferred by the tolerant rootstock coincided with the highest proline concentration in anthers, and better pollen germination and fruit set compared to the other graft combinations. We conclude that grafting peppers onto a heat stress-tolerant rootstock, such as A57, could overcome negative high-temperature effects better than an ungrafted variety. Moreover, the better physiological performance noted in vegetative parts conferred by a heat stress-tolerant rootstock would also lead to better performance in the reproductive development phase. All this indicates that using tolerant rootstocks in pepper could be an interesting method to alleviate heat stress effects on this crop. 2024-04-26T11:39:47Z 2024-04-26T11:39:47Z 2023 article publishedVersion Gisbert-Mullor, R., Padilla, Y. G., Calatayud, Á., & López-Galarza, S. (2023). Rootstock-mediated physiological and fruit set responses in pepper under heat stress. Scientia Horticulturae, 309, 111699. 0304-4238 https://hdl.handle.net/20.500.11939/8848 10.1016/j.scienta.2022.111699 https://www.sciencedirect.com/science/article/pii/S0304423822008093 en Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ openAccess Elsevier electronico |
| spellingShingle | Graft F62 Plant physiology - Growth and development Capsicum annuum Pollen High temperature Antioxidants Gisbert-Mullor, Ramón Padilla, Yaiza Gara Calatayud, Ángeles López-Galarza, Salvador Rootstock-mediated physiological and fruit set responses in pepper under heat stress |
| title | Rootstock-mediated physiological and fruit set responses in pepper under heat stress |
| title_full | Rootstock-mediated physiological and fruit set responses in pepper under heat stress |
| title_fullStr | Rootstock-mediated physiological and fruit set responses in pepper under heat stress |
| title_full_unstemmed | Rootstock-mediated physiological and fruit set responses in pepper under heat stress |
| title_short | Rootstock-mediated physiological and fruit set responses in pepper under heat stress |
| title_sort | rootstock mediated physiological and fruit set responses in pepper under heat stress |
| topic | Graft F62 Plant physiology - Growth and development Capsicum annuum Pollen High temperature Antioxidants |
| url | https://hdl.handle.net/20.500.11939/8848 https://www.sciencedirect.com/science/article/pii/S0304423822008093 |
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