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<p>Grapevine is one of the most important fruit crops that faces many challenges during production steps and post-harvest period. It is highly perishable, and its shelf life is very limited due to many internal and external factors. To mitigate these effects, the present study aimed to evaluate diverse phytohormones coupled with grafting on endogenous hormone levels, berry quality, and storability of ‘Crimson Seedless’ grapes during cold storage. Treatments with abscisic acid (ABA) and ethephon (Eth) improved berry firmness, anthocyanin and total phenolic content, antioxidant capacity, and soluble solids, while decreasing titratable acidity. Notably, ABA treatment resulted in the lowest weight loss and overall better berry quality. Hormonal analysis of the leaves revealed that Eth treatment led to the highest internal levels of ABA, auxin, and ethylene, whereas ABA treatment increased cytokinin content. Grafted vines exhibited higher levels of ABA and auxin, while own-rooted vines showed elevated gibberellin and cytokinin levels. Overall, both grafting and phytohormone treatments at pre-harvest significantly affected leaf hormone profiles, contributing to improved berry quality and storability without delay during cold storage. Based on our results, the Eth application is recommended for own-rooted vines, while the ABA treatment is more suitable for grafted vines. Moreover, grafted vines are generally better for establishing new vineyards, not only because of their superior berry quality but also due to other agronomic benefits.</p>

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Post-harvest Berry Quality and Hormonal Content of ‘Crimson Seedless’ Grapevines in Response to Grafting and Pre-harvest Growth Regulators Applications

  • 期刊论文

  • 发表日期：

    2026年4月17日

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  • Abdel-Moety Salama,
  • Abdullah Alebidi,
  • Atef Abo-Ogiala,
  • M. S. Aboryia,
  • Mohamed A. Abdelsalam,
  • Wilfried Schwab,
  • Mahmoud Abdel-Sattar

摘要

Grapevine is one of the most important fruit crops that faces many challenges during production steps and post-harvest period. It is highly perishable, and its shelf life is very limited due to many internal and external factors. To mitigate these effects, the present study aimed to evaluate diverse phytohormones coupled with grafting on endogenous hormone levels, berry quality, and storability of ‘Crimson Seedless’ grapes during cold storage. Treatments with abscisic acid (ABA) and ethephon (Eth) improved berry firmness, anthocyanin and total phenolic content, antioxidant capacity, and soluble solids, while decreasing titratable acidity. Notably, ABA treatment resulted in the lowest weight loss and overall better berry quality. Hormonal analysis of the leaves revealed that Eth treatment led to the highest internal levels of ABA, auxin, and ethylene, whereas ABA treatment increased cytokinin content. Grafted vines exhibited higher levels of ABA and auxin, while own-rooted vines showed elevated gibberellin and cytokinin levels. Overall, both grafting and phytohormone treatments at pre-harvest significantly affected leaf hormone profiles, contributing to improved berry quality and storability without delay during cold storage. Based on our results, the Eth application is recommended for own-rooted vines, while the ABA treatment is more suitable for grafted vines. Moreover, grafted vines are generally better for establishing new vineyards, not only because of their superior berry quality but also due to other agronomic benefits.