An important challenge encountered in the cultivation of sour cherries in Poland is the detrimental impact of spring frosts on the flowers and flower blossoms. Additionally, certain diseases, including brown rot (Monilia spp.), cherry leaf spot (caused by Blumeriella jaapi), and bacterial cancer (Pseudomonas syringae), have a substantial impact on both the fruit's yield and quality.
Considering the issues associated with a shortage of fieldworkers, particularly during harvest season, the necessity to adjust to these numerous challenges becomes evident. This is most effectively accomplished by a beeding programme and a selection of new cultivars with features adapted to those required.
Firstly, it is essential a high acclimatation ability to the polish environmental conditions; this also entails a lower vulnerability to the main sour cherry diseases. Secondly, plants need to be adapted to mechanical harvesting and intensive cultivation systems. Finally, the introduction of new cultivars should prolong the harvesting season.
To date, the production of cultivated cherries is relatively conservative, as the highly productive and spring frost resistant Schattenmorelle accounts for more than 75% of the total production. The Agricultural University in Lublin developed cv. Nefris in 1997, while the Agricultural University in Poznan produced Agat, Ametyst, Dradem, and Diament as a result of the breeding programme implemented in Poland.
Among the cultivars produced by the Institute of Horticultural and Breeding were Wilen, Wilga, Lucyna, Wanda, Koral, and Kolia. These new selections demonstrate the commitment of Polish research institutes to new solutions that can guarantee quality sour cherry production, even in challenging scenarios such as the one we are currently facing.
Fonte: http://2021.cherries.org.cn/replayEn.html
Melissa Venturi
University of Bologna (IT)
28 May 2024
Ovalle was once again the capital of early cherries. Organised by Susttex, the Cerezas Primores seminar brought together producers, companies, academics and people interested in cherry cultivation in the Coquimbo region for the third year running.
08 Aug 2024
If we define plant health as a function of primary (growth) and secondary (defence) metabolisms, both share a common pool of cellular energy (CE). The presence of abiotic stress will shift the CE budget, from growth kinetic model to one that is focused on defence mechanism.
30 Oct 2024
"Most traditional cherries need a minimum of 800 hours of chilling, but our low-chilling varieties can produce fruit with less than half of those hours. This opens up cultivation opportunities in areas with milder winters."
30 Oct 2024
One of the restrictions imposed by the Chinese authorities concerns the packaging warehouse, which has to establish how to apply differentiated fruit handling throughout the process, from receipt to packaging and storage of the cherries.
