<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Climate change and warming affect the development cycle of ornamental plants and, thus, their quality and ornamental value. The study aimed to investigate the flowering phenology of 37 cultivars of shrub roses in response to meteorological conditions based on eight years of observations. Based on 14,800 field records, we grouped shrub rose cultivars according to their dominant flowering stage as a sensitive indicator of variability in weather conditions. We also selected the rose cultivars that would retain the highest ornamental value even at increasing temperatures. The total flowering duration of the cultivars ranged from 31 to 115 days (mean 90.4 days) and was significantly positively correlated with temperature. Meteorological conditions significantly influenced individual flowering stages (FS) and a trend of changes concerning the long-term gradient was observed: the increase in temperature extended FS10 and shortened FS25, FS50, and FS75 but did not affect FS100. If the warming trend continues, the abundant flowering of roses may be shortened considerably. Rose cultivars with the longest flowering period at FS10 abundance may adapt better to rising temperatures, and, therefore may be more useful in landscape planning and management.</p>
</abstract>

Climate change and warming affect the development cycle of ornamental plants and, thus, their quality and ornamental value. The study aimed to investigate the flowering phenology of 37 cultivars of shrub roses in response to meteorological conditions based on eight years of observations. Based on 14,800 field records, we grouped shrub rose cultivars according to their dominant flowering stage as a sensitive indicator of variability in weather conditions. We also selected the rose cultivars that would retain the highest ornamental value even at increasing temperatures. The total flowering duration of the cultivars ranged from 31 to 115 days (mean 90.4 days) and was significantly positively correlated with temperature. Meteorological conditions significantly influenced individual flowering stages (FS) and a trend of changes concerning the long-term gradient was observed: the increase in temperature extended FS10 and shortened FS25, FS50, and FS75 but did not affect FS100. If the warming trend continues, the abundant flowering of roses may be shortened considerably. Rose cultivars with the longest flowering period at FS10 abundance may adapt better to rising temperatures, and, therefore may be more useful in landscape planning and management.

Flowering Phenology of Shrub Roses as a Sensitive Indicator of Meteorological Variability in Central Europe

Department of Ornamental Plants and Garden Art, Faculty of Biotechnology and Horticulture

Department of Ecology, Climatology and Air Protection, Faculty of Environmental Engineering and Land Surveying

Journal of Horticultural Research

This work is licensed under the Creative Commons Attribution 4.0 International License.

Climate change and warming affect the development cycle of ornamental plants and, thus, their quality and ornamental value. The study aimed to investigate the...

Flowering Phenology of Shrub Roses as a Sensitive Indicator of Meteorological Variability in Central Europe

Published Online: Dec 31, 2023

Page range: 189 - 204

Received: Sep 01, 2023

Accepted: Dec 01, 2023

DOI: https://doi.org/10.2478/johr-2023-0038

Keywords
flowering stages, ornamental roses, phenology, reblooming, warming, weather conditions

© 2023 Zofia Włodarczyk, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Flowering Phenology of Shrub Roses as a Sensitive Indicator of Meteorological Variability in Central Europe

Published Online: Dec 31, 2023

Page range: 189 - 204

Received: Sep 01, 2023

Accepted: Dec 01, 2023

DOI: https://doi.org/10.2478/johr-2023-0038

Keywordsflowering stages, ornamental roses, phenology, reblooming, warming, weather conditions

© 2023 Zofia Włodarczyk, published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
flowering stages, ornamental roses, phenology, reblooming, warming, weather conditions