Features of Growth Processes of Sweet Cherry Trees of Various Ripening Terms in the Conditions of the Right-Bank Forest-Steppe of Ukraine

Шубенко, Лідія; Shokh, Svitlana; Каrpuk, Lesia; Pavlichenko, A.; Philipova, Larysa

doi:10.48077/scihor.24(7).2021.61-67

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…The highest degree of damage (3.1 points) was observed for the Drogana yellow variety, which is considered the standard of frost resistance [Shubenko et al, 2021]. Minimal damage to the fruit-bearing formations was found in the early-ripening variety Zoryana and medium-ripening Alyonushka (0.7-0.9 points).…”

Section: Resultsmentioning

confidence: 98%

Determination of frost resistance of sweet cherry varieties using laboratory freezing

Шубенко¹,

Kubrak²,

Фiлiпова³

et al. 2023

Ecol. Eng. Environ. Technol.

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The article presents the study results of the frost resistance of sweet cherry varieties of different ripening periods under artificial freezing. The damage degree of various tissues of one-and two-year-old wood, as well as fruit formations, was analyzed. In the group of early-ripening and late-ripening varieties, a significant resistance of the bark to the effect of low temperature was found, the average damage score was 0.7. Among late-ripening cherry varieties Drogana yellow had low-temperature damage to one-year-old wood, while no negative effect on the wood was observed for the Amazonka variety. The highest overall degree of freezing of one-year wood was observed for the varieties Mliivska yellow and Drogana yellow, the lowest values were obtained for the varieties Meotida, Mirage and Amazonka. Dispersion analysis based on a combination of factors confirmed the highest degree of wood freezing for the Mliivska yellow and Drogana yellow varieties. Among the early-ripening varieties, the two-year-old wood froze the most in trees of the Dar Mlieva variety, where the highest degree of damage to the tissues of the bark, cambium, and wood was observed. The least tissue damage was in the Mliivska yellow variety, however, its core had the maximum damage not only within the group, but also among all the studied varieties. By artificial freezing in laboratory conditions, it was established that the highest frost resistance of annual and perennial wood is characteristic of the early ripening variety Zoryana, medium ripening Meotida and late ripening Amazonka. As a result of laboratory freezing, the frost resistance of fruiting bodies did not exceed 2.2 points. The fruiting formations of the Drogana yellow exceeded all the studied varieties in terms of the level of damage. High resistance to low temperatures was shown by the fruiting formations of the varieties Zoryana, Mirage and, especially, Alyonushka. The damage level of other pomological varieties was in the range of 1.9-2.25 points. The most negative effect of low temperatures was caused on flower germs.

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Section: Resultsmentioning

confidence: 98%

Determination of frost resistance of sweet cherry varieties using laboratory freezing

Шубенко¹,

Kubrak²,

Фiлiпова³

et al. 2023

Ecol. Eng. Environ. Technol.

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“…Отже, на утворення одного кілограму плодів черешні у центрі крони треба задіяти майже удвічі більше листкової поверхні, аніж на продукування аналогічного периферійного урожаю. Крім того, в умовах достатнього освітлення плоди виростають більшими та з кращим біохімічним складом [4,17].…”

Section: білоцерківський національний аграрний університетunclassified

Components of photosynthetic activity of cherry trees in the Right-Bank Forest-Steppe of Ukraine

et al. 2022

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The article presents the results of research on the photosynthetic activity of cherry trees. The aim of the research was to study the morphological, growth and biochemical characteristics of the leaf cover of cherry trees depending on the time of fruit ripening. Observations, analysis and laboratory studies reveal morphological and biochemical features of annual tree growth, total leaf surface and content of green pigments in the leaves which is one of the main indicators of photosynthetic potential of fruit trees. It was established that Dar Mlieva was characterized by the largest total length of annual increments among early ripening varieties, Melitopolʹsʹka krapchasta variety – among medium ripening varieties, and Drogana zhovta variety among late ripening varieties. Aborehenka variety had the largest average length of shoots, and Mirage variety had the smallest length. The number of shoots on the tree and the activity of annual new ramules make the shoot-forming ability. Cherry varieties are divided into groups according to the obtained data: with a high degree of shoot formation – Dar Mlieva, Zoryana, Mirage, Melitopolʹsʹka krapchasta and Drogana zhovta; middle degree – Mliivsky zhovta, Aboriginal, Meotida, Amazon and low degree – varieties Alyonushka, Biryuza, Donetsky uholʹok. Low leaf area of cherry plantations negatively affected the activity of the processes of photosynthesis and productivity of plantations aged 6–8 years and made 14–35 % of the optimal. The content of chlorophyll in the leaves depended largely on the characteristics of the pomological variety, while for the maturity of the fruit, the dependence was not detected. The middle maturity cherry varieties of Mirage and Meotida diﬀered favorably in the content in the leaf of pigments of photosynthesis of carotenoids, chlorophyll a, b, as well as the sum of a + bchlorophylls . The content of these indicators exceeded the indicators of other studied varieties by 25 % on average. Key words: sweet cherry, photosynthesis, total leaf surface, length of annual increments, chlorophyll content.

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Phenological aspects of the development of sweet cherry varieties in the environmental conditions of the Right-Bank Forest-Steppe of Ukraine

Shubenko,

Leus,

Zabolotnyi

et al. 2023

Agrobìologìâ

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The article presents the results of the study of the seasonal rhythm of the growth and development processes of sweet cherry varieties in the conditions of the Right-Bank Forest Steppe of Ukraine. The beginning of culture development, passage and duration of the main phenophases are determined. There is slight varietal variability between the dates of the beginning and duration of vegetation in accordance with changes in weather conditions. As a result of the conducted observations, it was established that the beginning of vegetation of sweet cherry varieties takes place in the first decade of April. The beginning of flowering of cherry trees is noted in the first half of the third decade of April, the variation of cherry blossoming beginning over the years reaches 5–10 days, which is most typical for the example of the «Dar Mlieva» and «Drogan yellow» varieties. The onset of harvestable ripeness largely determines the variety's belonging to the ripeness group. The fruits of the «Mliivska yellow», «Dar Mlieva», and «Zoryana» varieties are the first to be harvested, and after 26 days, the fruits of the «Amazon» variety are harvested. According to the results of observations, sweet cherry varieties were conditionally divided into groups of ripeness: early ripening, in which the fruits ripen 44-48 days after flowering, medium ripening – fruits ripen 50–60 days after the end of flowering, late ripening – fruits ripen later than 60 days after flowering. Depending on the onset of the harvestable ripeness of the fruits and the duration of the fruiting phase, for timeliness and convenience of harvesting it became possible to create a kind of harvesting conveyor. The duration of the growing season was on average 186 days in the early-ripening group of sweet cherry varieties with the shortest period in the «Mliivska yellow» variety, 191 days for the medium-ripening group varieties with the longest period in the «Melitopolska krapchasta» variety and the shortest in the «Alyonushka» variety, in the lateripening varieties «Biruza» and «Amazon» varieties 196 and 200 days respectively. Key words: sweet cherry varieties, phenological phases, vegetation period, vegetative organs, duration of the growing season.

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Features of Growth Processes of Sweet Cherry Trees of Various Ripening Terms in the Conditions of the Right-Bank Forest-Steppe of Ukraine

Cited by 3 publications

References 9 publications

Determination of frost resistance of sweet cherry varieties using laboratory freezing

Determination of frost resistance of sweet cherry varieties using laboratory freezing

Components of photosynthetic activity of cherry trees in the Right-Bank Forest-Steppe of Ukraine

Phenological aspects of the development of sweet cherry varieties in the environmental conditions of the Right-Bank Forest-Steppe of Ukraine

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