"The super millionaire fruits of the Alma Mater": this is how Corriere della Sera headlined years ago when announcing the results obtained by researchers from the Department of Agri-food Sciences and Technologies of the University of Bologna on the cherry tree genetic improvement project: the seven Sweet® sisters, the new varieties named after the children or loved ones of their inventors.
A team led by Stefano Lugli who, starting from old indigenous varieties, the famous Duroni di Vignola, bearers of valuable traits such as sweetness, texture and aroma, has been able to combine these virtues with others, such as beauty, size and productivity, taking them from varieties of American origin.
Below, the report by Bettina Riedel, variety manager of UNIBO, presented at the seminar on cherry variety innovation at Macfrut 2023. Precisely at Macfrut, ten years ago, the Sweet® varieties made their debut winning, among others, the Oscar prize for innovation.
01 May 2023
The market recognises a number of key quality characteristics: a brightly coloured fruit, a strong 'cherry' flavour, a green and turgid stalk. Several new technologies have been developed to prolong the fruit's shelf life.
20 Nov 2024
Some dwarfing rootstock selections for Gisela® cherry trees have recently been licensed in New Zealand and will be more widely available to growers from 2026. Gisela® 12 and 6 are currently being tested in Central Otago.
27 Aug 2026
A study in Xinjiang, China, compares five sweet cherry rootstocks under salt stress. Mahaleb CDR-1 and Daqingye show the strongest tolerance, maintaining better photosynthesis, osmotic adjustment and antioxidant defense even at high NaCl concentrations in lab trials.
27 Aug 2026
In Chile, El Niño is raising risks for cherry orchards as waterlogging can damage roots and disrupt budding and flowering, while preharvest rain may increase fruit cracking and rot. INIA Quilamapu highlights strategies to protect cherry quality, yield and postharvest life.
