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.
10 Dec 2024
According to reports, abortion or pasma occurs 25-30 days after full flowering, when the fruit has already formed and then falls. A tree with an excessive load, for example, will naturally abort more fruits due to competition for photosynthates.
07 Nov 2023
Major targets for new varieties include large fruit size, firmness, early ripening, self-fertility, and disease resistance. Crosses are made in the orchard and increasingly in the hoop house which extends the crossing season and provides frost protection.
21 Feb 2025
A recent study from Greece compared different research to analyse the concentration of phenolic components of the cherry and its by-products, as well as the extraction techniques used.
21 Feb 2025
Pseudomonas bacteriasis and Cytospora fungal infections pose a major threat to the Washington State economy. The bacterial cancer in 2023 mainly affected young orchards, the subject of Prof. Zhao's research.
