"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.
10 Feb 2025
"In the last 13 years we have produced an average of 4700 hybrids per year. We collect 80000 seeds, out of which 60000 come from ‘controlled’ open pollinations. The largest families have 250-300 hybrids" says Dr. José Manuel Donoso of INIA Rayantué.
05 Mar 2024
Youfu Zhao recommends pruning in summer whenever possible and switching from sprinkler to drip irrigation to keep the orchard drier. For larger trees, it is possible to cut back the cankers, Zhao said, but this is fatal for young trees.
22 Jan 2026
At Hort Show 2026, experts and growers discussed the future of cherries through market insights, tech innovation and AI. From economic sustainability to mechanical harvesting, the second day focused on boosting profitability and resilience in U.S. cherry farming.
22 Jan 2026
Forchlorfenuron (CPPU) is a growth regulator used in fruit farming to improve size, yield and shelf life. It enhances quality and storage by acting on cell growth, sugar levels and metabolism. A sustainable choice for modern and efficient fruit production systems.
