Scientific Reports of the National University of Life and Environmental Sciences of Ukraine

Evaluation of the resistance of floribunda rose varieties to the influence of environmental factors in the conditions of the Right Bank Forest Steppe of Ukraine

А. Brovdi, V. Polishchuk
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Abstract

The success of the adaptation of floribunda rose varieties in the conditions of the Right Bank Forest Steppe of Ukraine and the prospects of their use in decorative gardening and greening based on indicators of resistance to the influence of environmental factors in the appropriate growth conditions were investigated. The results of the evaluation showed high winter hardiness of the genotypes in the conditions of the research. In particular, the varieties Pomponella, Lovely Green, Westpoint, Minerva, Novalis, Goldelse, Rotkappchen, Bella Rosa and Let's Celebrate, whose degree of damage by low temperatures did not lead to deterioration of their decorativeness, are recognized as highly winter- resistant. In particular, the Pomponella variety should be noted, which showed only minor damage even in the most unfavorable years. According to the indicator of drought resistance, the roses of the floribunda group showed high results with minor external signs of the influence of negative factors, which were manifested in the temporary wilting of leaves due to their loss of turgor, and changes in growth rhythms as a result of the influence of relevant external factors. The resistance of plants to the influence of limiting factors influenced the result of the assessment of the success of acclimatization of floribunda rose varieties in the conditions of the Right Bank Forest Steppe of Ukraine. The varieties Pomponella, Westpoint, Minerva, Rotkappchen, Bella Rosa and Let's Celebrate had an acclimatization number above 80 points, with the highest score in the Pomponella variety (95 points), which corresponds to full adaptation and confirms their high potential decorative gardening. All other varieties have good acclimatization, which makes them a valuable material for landscaping in the conditions of research

Keywords

roses, floribunda, winter resistance, drought resistance, acclimatization, landscaping

Suggested citation
Brovdi, А., & Polishchuk, V. (2023). Evaluation of the resistance of floribunda rose varieties to the influence of environmental factors in the conditions of the Right Bank Forest Steppe of Ukraine. Scientific Reports of the National University of Life and Environmental Sciences of Ukraine, 19(2). https://doi.org/10.31548/dopovidi2(102).2023.015
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