Cherry Times offers its readers the reports on cherry rootstocks presented at the Macfrut 2024 International Rootstock Symposium.
The Krymsk Experimental Breeding Station has a long history of breeding interspecific rootstocks for stone fruit. The 6000 Prunus accessions in their collection are being used for combining useful traits of stress and disease resistances into new interspecific rootstock genotypes suitable as rootstocks for multiple stone fruit species.
For testing and propagation in Europe, the United States and several other countries outside Russia, Varieties International has obtained a license and has imported several promising rootstocks suitable for almond, apricot, cherry, nectarine, peach and plum.
The selection of these interspecific rootstocks was made on basis of the induced tree vigor and tolerance to various environmental stresses like drought, flooding, frost and the pH and salt content of the soil. At present seven Krymsk rootstocks have been patented and have been commercially released.
Image 1: Frank Maas.
Since 2017 about 20 new selections have been imported into Europe and the USA. After release from quarantine these rootstocks have been propagated and test trees have been grown. In Europe the first test trees of plum varieties ‘Jubilieum’ and ‘Opal’ and sweet cherry varieties ‘Kordia’ and ‘Regina’ were planted in 2023, using rootstock genotypes with a vigor between very dwarfing to semi-dwarfing.
After the first growing season in the differences in tree vigor are already becoming visible. However, it will take several more years to evaluate how the fruit production and growth the trees will develop and to find out which of these rootstocks will be a better choice for the fruit grower than the ones currently used.
Download the full report here
Download the presentation here
Frank Maas
Varieties International/Nedworc Foundation
frank.maas.nl@gmail.com
05 Jul 2024
The study conducted by several Canadian research centres used pollen 'sampled' by bees to perform metagenomic monitoring of plant viruses. In detail, viruses extracted from pollen RNA were compared with RNA extracted from leaves and flowers.
08 Sep 2025
A study by the University of Life Sciences in Bydgoszcz shows that Fresh Inset’s Vidre+ technology, with controlled 1-MCP release inside packaging, keeps cherries fresh for up to 21 days, improving firmness, preserving stem colour and enhancing overall fruit quality.
10 Feb 2026
Climate change is reducing cherry volumes in Chile, pushing growers and researchers to rethink varieties, orchard management and postharvest strategies. New predictive models aim to safeguard quality and exports to the Chinese market worldwide globally.
10 Feb 2026
Low temperature storage extends the shelf life of sweet cherries but may induce pulp lignification. A study on the Meizao cultivar examines structural, biochemical and molecular changes affecting fruit firmness, texture, quality and consumer acceptance during post-harvest storage
