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
30 May 2024
γ-aminobutyric acid regulates numerous physiological processes in plants. The University of Alicante monitored for two years the effects of foliar sprays of GABA at different concentrations at critical stages of fruit development in three sweet cherry cultivars.
18 Nov 2024
Michigan State University aim to create a yeast-based biopesticide modeled after approaches proven effective against other species of flies and mosquitoes. The product works by disrupting the protein translation of the pests' ribonucleic acid (RNA).
02 Apr 2026
Mercadona strengthens its 2026 cherry campaign with over 6,000 tonnes of Spanish fruit, doubling volumes. A strategy focused on short supply chains, national growers and price stability, supporting key cherry-producing regions across Spain during the season market growth.
02 Apr 2026
A China-based study investigates DMI fungicide resistance in Alternaria alternata affecting sweet cherry. The G462S mutation and AaCYP51 gene overexpression explain reduced treatment efficacy and highlight new strategies for resistance management in agriculture.
