The first experiences with cherry breeding at the VSUO in Holouvosy in the Czech Republic date back to the late 1960s. The main variety selected from this programme is Kordia, which in recent years has become one of the world's leading varieties in the medium-late ripening period, mainly due to its high fruit quality standards.
The primary objectives of the WSUO programme are cherry quality (size, texture and colour), resistance to cracking and rot, shelf life and plant productivity. MAS technologies are used in the breeding programme for the early selection of genotypes on several traits: self-fertility, spring frost resistance, drought and climate change tolerance and low chilling requirements.
WSUO, besides Kordia, has commercially propagated 28 cherry varieties. The best known are Early Korvik, Christiana, Felicita, Irena, Justyna, Kasandra, Tamara, Techlovan, Tim and Vanda.
Below is the report of Lubor Zelený, cherry breeding project manager at WSUO in Holouvosy, presented at the workshop on cherry variety innovation at Macfrut 2023.
09 Jun 2025
The 2024/25 cherry season in Chile sets a record thanks to smart irrigation strategies. With proper data use, it's possible to increase productivity and reduce water consumption by up to 42%, significantly enhancing quality, efficiency, and overall crop sustainability.
17 Jul 2025
A greenhouse experiment in China on sweet cherry trees examined how different shading durations affect photosynthesis, sugar content, chlorophyll levels, and antioxidant enzyme activity. The study highlights the balance between light protection and optimal fruit development.
13 Nov 2026
Rain and hail in Chile have damaged crops, while a truckers’ strike in San Antonio threatens shipments. Cherry output could reach about 115 million boxes, below the 140 million estimate. Weather and logistics are clouding the 2026-2027 season and its export outlook.
13 Nov 2026
Cherry leaf roll virus affects sweet, sour and black cherry trees. It is regulated in Canada, where symptoms may appear about five years after infection. The article outlines how it spreads and measures to prevent its introduction and contain the virus in orchards.
