Aspersión foliar con nanopartículas de óxido de zinc y ácido salicílico sobre el crecimiento, la productividad y la calidad del tomate bajo estrés hídrico

Autores/as

DOI:

https://doi.org/10.51372/bioagro382.7

Palabras clave:

Contenido relativo de agua, fenoles, firmeza, sólidos solubles totales, vitamina C

Resumen

Este estudio tuvo como objetivo evaluar la efectividad de las nanopartículas de óxido de zinc (ZnO-NPs) y el ácido salicílico (AS), aplicados individualmente o en combinación, para aliviar los efectos adversos de las condiciones de déficit hídrico al 50 y 75 % de capacidad de campo (CC) en el crecimiento y el rendimiento de plantas de tomate (cv. Super Strain) durante los años 2022 y 2023. Los resultados mostraron que el 50 y 75 % % de CC afectó negativamente los parámetros de altura de planta, área foliar, peso seco y componentes del rendimiento. El rendimiento de frutos disminuyó en 24,78 y 54,16 % en 2022, y 27,91 y 60,06 % en 2023, respectivamente. El estrés hídrico provocó una reducción de los niveles de clorofila y un menor contenido relativo de agua en las hojas en ambas estaciones. La aplicación de ZnO-NPs y AS como tratamientos foliares, individualmente o en combinación, redujo con éxito los efectos adversos del estrés en las plantas. Este tratamiento mejoró el crecimiento de las plantas, el contenido de clorofila, el contenido relativo de agua en las hojas y el rendimiento de fruto. El uso conjunto de nanopartículas de ZnO y AS brindó un rendimiento superior y contrarrestó los efectos adversos del estrés hídrico en la mayoría de las características evaluadas, superando los beneficios observados con cualquiera de los tratamientos por separado. Cuando la CC fue del 50 y 75 %, el rendimiento de frutos aumentó 21,25 y  43,57 % en 2022, y 24,67 y 74,44 % en 2023, respectivamente.

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Publicado

2026-05-01

Cómo citar

El-Beltagi, H. S., El-Nady, M. F., Mahmoud Ismail, A., & Metwaly, M. M. (2026). Aspersión foliar con nanopartículas de óxido de zinc y ácido salicílico sobre el crecimiento, la productividad y la calidad del tomate bajo estrés hídrico. Bioagro, 38(2), 221-234. https://doi.org/10.51372/bioagro382.7

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