Spraying Persimmon Trees with Methyl Jasmonate Enhances Fruit Quality and Health Benefits

Researchers at Edith Cowan University in Joondalup, Australia have discovered a groundbreaking method to improve the quality and health benefits of persimmon fruit. By spraying persimmon trees with methyl jasmonate (MeJA), they were able to produce fruit with enhanced antioxidants and a longer shelf life.

MeJA is an organic compound derived from jasmine oil, commonly used in fruit production to regulate stress, promote growth, and improve ripening. In a first-of-its-kind study, PhD student Mahmood Ul Hasan applied MeJA as a pre-harvest spray on persimmon cultivars Yoho and Jiro in Western Australia, resulting in vibrant fruit color and extended ripening.

“The application of MeJA not only improved fruit color and ripening but also enhanced the bioactive compounds in the fruit, resulting in healthier and more nutritious produce,” Mahmood explained.

Extending the Harvest Season

By enhancing the color of early maturing persimmon cultivars, the researchers were able to extend the harvest season, providing growers with increased income opportunities. This is particularly crucial in Western Australia, where persimmon production plays a significant role in the agricultural industry.

MeJA has been previously used successfully in various fruit crops, including apples, oranges, mangoes, grapes, and pomegranates. Its application in persimmons has proven to be a game-changer, allowing for improved fruit quality and marketability.

Furthermore, the study revealed that MeJA application also led to an increase in health-promoting compounds such as phenolics, flavonoids, and antioxidants in persimmon fruit, making it not only visually appealing but also nutritionally superior.

Future Implications and Research

Following their success with MeJA in persimmons, Mahmood and the Horticulture team at ECU are now exploring the potential of this compound in other fruit crops. Their comprehensive review on the effects of MeJA on fruit color development and phytochemical quality showcases the promising future of this technique in enhancing fruit production across different varieties.

This review highlights the positive impact of pre-harvest MeJA application in advancing fruit quality and shelf life, offering a sustainable solution for growers to meet consumer demands and achieve higher economic returns.