Over the past two decades, exports of fresh cherries have grown rapidly, reaching 415,398 tonnes in the 2022-2023 season, with the Far East as the main destination, accounting for 92% of total exports (source: iQonsulting, 2023).
This increase is mainly due to the expansion of new orchards and better yields in existing orchards, especially for varieties such as Lapins and Santina. However, this growth can often compromise fruit quality, especially fruit size, which is a crucial factor in determining price and yield for growers.
To remain a leader in the industry, it is crucial to look for ways to improve the quality of the fruit demanded by the target markets. Growers have several management strategies to increase fruit size, including adjusting fruit load (through early bud or flower thinning), proper irrigation and fertilisation management, and the use of biostimulants and growth regulators during fruit development.
To better understand how these strategies work, it is important to understand the growth curve of the fruit. The cherry has a double sigmoid growth curve divided into three phases. The first phase is characterised by active cell division of the mesocarp (fruit flesh) and significantly influences the potential size of the fruit.
The second phase involves a slower growth of the mesocarp, while the third phase is characterised by the elongation of the cells of the mesocarp due to water supply, which makes proper irrigation management important.
Changes in fruit size are influenced by phytohormones, the concentration of which varies during development. For example, in the early stage, there are high levels of growth-related phytohormones such as auxins, cytokinins and gibberellins, while in the later stage, there is an increase in gibberellins and abscisic acid, which regulates ripening.
Fig.1: Dinamica di crescita e concentrazione di fitormoni durante lo sviluppo dei frutti.
Read the full article: Mundoagro
Images: Mundoagro
27 Mar 2025
The April issue of PHYTOMA magazine explores solutions to combat Drosophila suzukii, the fly that damages cherries. Learn about proven control strategies, including anti-insect nets and the use of sterile insects. Updates on 22 May in Balandran.
12 May 2023
Experiences with the application of multifunctional insect nets, territorial biological control and the attract & kill technique in Vignola. The study project on integrated cherry tree management is entering the third year of the work programme.
04 May 2026
In France, the first Royal Tioga cherries reach the shelves as early as April thanks to protective systems against wind and rain. Early production reduces competition, improves growers’ margins and allows prices of up to €14 per kilo at the start of the season.
04 May 2026
In 2026, UK sweet cherries confirm growth, quality gains and steady retail demand. With production forecast at 8,000 tonnes, the key challenge will be diversifying across retail, wholesale and export to capture value during seasonal peaks while reducing waste and big discounting.
