Uman NUH | today: 01/26/2023

Evaluation of prunus l. cultivated in ukraine by pollen-forming capacity

Author(s) Polishchuk V.V., , , Uman National University of Horticulture, Ukraine
Струтинська Ю. В., , ,
Category The Agronomy
year 2022 issue Issue 100. Part 1
pages 55-61 index UDK 582.711.713:635.925(477.41)
DOI 10.31395/2415-8240-2022-100-1-55-61 (Link)
Abstract A brief morphological classification of the most common genotypes of the genus Prunus L. in Ukraine is given. Popular varieties and forms of sakura are characterized and generalize. Some of them are recommended for cultivation in different soil and climatic zones of Ukraine. According to field research conducted in 2020–2021 at Uman National University of Horticulture and the National Dendrological Park "Sofiyivka" of the National Academy of Sciences of Ukraine, two varieties of sakura Kanzan and Royal Burgundy were identified, the anthers of which were later used for research. Samples for microscopic examination were taken during the period of mass flowering of sakura. Flowers from trees were cut on different sides (northern, southern, western and eastern) and tiers (upper, middle and lower tiers). 3–4 flowers were taken from each zone, so at least 40 samples were taken from each tree. For the study of sakura anthers, temporary pressurized cytological preparations were prepared according to conventional methods. Anther microscopy was performed using a JENAVAL microscope (Carl Zeiss Jena) at four hundred times magnification. Thus, it was found that the absence of sakura fruits in the studied varieties is caused by the sterility of male generative organs, which do not form pollen grains. However, this does not give a complete picture of other varieties cultivated in Ukraine and has a wide range for studies of other genotypes in terms of pollen-forming ability. The ambiguous attitude of researchers of the genus Prunus L. and revealed in various publications differences in species and intraspecific classification of its representatives indicate the incompleteness of the genus system and the need for further research by classical and molecular genetic methods. Researchers have an ambiguous problem with the pollen-forming ability of varieties and species of sakura, which are adapted to growing conditions in Ukraine, but most genotypes do not produce seeds, which complicates the creation of new source material and new varieties of this ornamental plant.
Key words source material, sakura, selection, varieties, introduction, flowering, classification, morphological features
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