Science

Nanoparticle carrier increased grape cluster weight by 104% vs free gibberellic acid

A study in the Journal of the Science of Food and Agriculture reports gibberellic acid loaded into biodegradable nanoparticles increased grape cluster weight 104% compared with free gibberellic acid.

07 Oct 2026, 12:00 UTC2 min read1 Sources
Close-up of dark purple wine grapes ripening in dense clusters on a vine, surrounded by green vine leaves with reddish edges.
Close-up of dark purple wine grapes ripening in dense clusters on a vine, surrounded by green vine leaves with reddish edges.Foto: Shutterstock

Key facts

  • Farmers use a manufactured version of the natural plant hormone gibberellic acid to improve crop health and growth, according to Phys.org.
  • Phys.org reported that gibberellic acid is highly sensitive to heat and light.
  • In field applications, gibberellic acid-loaded nanoparticles increased grape cluster weight by 104% and length by 67% compared with free gibberellic acid treatment, according to the study.
  • Berry weight, length and width increased by 15%, 4% and 13% respectively, the study reported.
  • The study, 'Polymeric Nano-Delivery of Gibberellic Acid Enhances Fruit Quality, Yield, and Pedicel Strength in Grapevine (Vitis vinifera L.)', was published in the Journal of the Science of Food and Agriculture in 2026 under DOI 10.1002/jsfa.71082.

Farmers use a manufactured version of a natural plant hormone called gibberellic acid to improve the health and growth of crops, according to Phys.org. Phys.org reported that the hormone is highly sensitive to heat and light. A 2026 study in the Journal of the Science of Food and Agriculture reports that loading gibberellic acid into biodegradable nanoparticles, which are extremely small particles that break down naturally, can improve grape yield and quality.

In field applications, treatment with gibberellic acid-loaded nanoparticles increased grape cluster weight by 104% and length by 67% compared with free gibberellic acid treatment, according to the study. The study reported that berry weight, length and width increased by 15%, 4% and 13% respectively.

The authors wrote: "Compared to traditional products, nanocarrier systems ensure more efficient delivery of active substances such as plant growth regulators in agricultural applications." Nanocarriers are extremely small particles that carry active substances. The study is titled "Polymeric Nano-Delivery of Gibberellic Acid Enhances Fruit Quality, Yield, and Pedicel Strength in Grapevine (Vitis vinifera L.)" and carries the DOI 10.1002/jsfa.71082.

Phys.org described the approach as promising and environmentally friendly for sustainable agricultural production. The study focused on grapevine, Vitis vinifera.

Context

Gibberellic acid is a natural plant hormone; the version farmers use is manufactured, according to Phys.org. Phys.org reported that the hormone is highly sensitive to heat and light. The 2026 study tested biodegradable nanoparticles as a carrier for the hormone in grapevines.

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