"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.
20 Jan 2026
A joint study by Chinese institutes and Michigan State University reveals how yellow-black bagging improves the color of 'Lapins' sweet cherries. The rise in anthocyanins and sugars highlights new agronomic strategies to enhance fruit quality in cherry production.
11 Sep 2025
Effective cherry fruit load regulation in Chile and Peru through strategic pruning, thinning, nutrition, and irrigation. Improve fruit size, sugar content, and harvest uniformity while ensuring sustainable yields and orchard performance in competitive export-driven markets.
14 Jul 2026
A study assesses walnut and hazelnut water pollen extracts as natural alternatives to IBA in the micropropagation of CAB-6P and Gisela 6 cherry rootstocks, highlighting effects on rooting, shoot growth, chlorophyll, carbohydrates and in vitro plant quality and vigor.
14 Jul 2026
A field study in Prosser, Washington, examines how horticulturists, growers and pruners choose where to cut cherry and apple trees, turning expert intuition into explicit rules for automated dormant pruning, crop-load management and more consistent orchard decisions.
