"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.
17 Jun 2025
The tariff suspension between the US and China reopens trade routes for Northwest cherries. With total duties down to 58%, exports to one of the most crucial markets resume, helping to stabilize global fruit trade and offering new momentum for the 2025 season.
19 Sep 2024
A study by Chinese and American researchers analyzed the effectiveness of different perforation levels in zipper-lock bags to extend the freshness of “Chelan” and “Lapins” sweet cherry cultivars. The goal was to reduce the weight loss and improve resistance during post-harvest.
13 Aug 2026
The study compares MAP and controlled atmosphere storage for Rainier, Bing, Skeena and Sweetheart sweet cherries, assessing firmness, stem quality, weight loss and postharvest disorders to identify effective strategies for maintaining fruit quality for long-term storage.
13 Aug 2026
Effective sweet cherry postharvest management protects the canopy, reduces heat stress and restores tree reserves. Balanced irrigation, selective summer pruning and targeted nutrition prepare trees for dormancy while supporting bloom, fruit set and next season’s crop.
