Uman NUH | today: 06/20/2024

Propagation by grafting of the genus Prunus L. introduced genotypes for further use in mono-gardens

Author(s) Polishchuk V.V., , , Uman National University of Horticulture, Ukraine
Струтинська Ю. В., , ,
Category The Agronomy
year 2023 issue Issue number 103. Part 1
pages 85-93 index UDK 582.711.713:631.535:635.925
DOI 10.32782/2415-8240-2023-103-1-85-93 (Link)
Abstract Aims. Theoretical substantiation (based on practical experience) and practical use of the most effective methods of Prunus serrulata L. decorative forms grafting. Methods. The research was conducted during 2021–2023 at the Biotechnology Laboratory of the Uman National University of Horticulture and the Sofiyivka National Dendrological Park of the National Academy of Sciences of Ukraine. The objects of the study were decorative forms: «Kanzan», «Royal burgundy», «Amanogawa», «Kiku-Shidare» and a weeping form. During the spring grafting, we used methods of improved copulation in the split and in the butt. Results. It was determined that the «Kanzan» variety does not reliably set fruit, as the anthers do not crack. This phenomenon is inherent in most genotypes cultivated in our area, so grafting should be given special importance in P. serrulata propagation. During the research period, 191 grafts of one cuttings per bark were made to propagate valuable source material. The yield of seedlings was 16 plants, which is 8,9 %. Survival percentage of two cuttings per bark did not exceed 5 % on average, and the grafts that survived did not produce significant growth in the first year. In contrast, 86,7 % of 148 operations were successful in propagating the source material by copulation and improved copulation, and 67 % of 135 operations, respectively. Plants propagated in this way adapted well and the seasonal growth of vegetative shoots ranged from 0,35 to 0,50 m. Conclusions. It was determined that the most effective method of propagation of Prunus serrulata genotypes was copulation. The percentage of survival of the material in this variant of the experiment was 81,8 % higher than in the variant of grafting two cuttings on the bark, where the survival of the material was the lowest and amounted to only 5,0 %. Good results were also obtained with improved copulation — the percentage of survival was 62 % higher than in the variant of grafting two cuttings per bark.
Key words source material, sakura, selection, varieties, cherry, plum, introduction, flowering, classification, morphological features
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