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
06 Sep 2024
The Chilean cherry industry continues to position itself in the global market. Early estimates for the 2024-25 season predict around 112 million boxes exported, but this projection brings several challenges that the industry must overcome to fully take advantage of this scenario.
22 May 2024
Uzbekistan, with its 35 million inhabitants and an area of 450,000 square kilometres (a third more than Italy), ranks fifth globally in producing more than 100,000 tonnes of cherries per year. The only sticking point concerns the varietal landscape.
08 Oct 2026
In eastern Gansu, China, a study on sweet cherry compares Apis mellifera and Apis cerana. Flower visits, pollen distribution, abundance and daily activity reveal complementary roles that may strengthen pollination services and resilience across commercial cherry orchards.
08 Oct 2026
Climate change is putting Italian cherries under pressure: in Puglia, production and yields are falling while prices remain high. Frost, heavy rain and rising costs are increasing volatility across the supply chain and weighing on both growers and consumers in Italy.
