Phenological features of the growth and development of Itoh Group peony cultivars in the conditions of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine
Purpose. To reveal the peculiarities of the seasonal rhythm of growth and development of Itoh Group peony cultivars in the conditions of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine. Methods. The objects of research were plants of 24 cultivars of Itoh Group p...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Ukrainian Institute for Plant Variety Examination
2021-04-01
|
| Series: | Plant Varieties Studying and Protection |
| Online Access: | http://journal.sops.gov.ua/article/view/228202 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850259041207451648 |
|---|---|
| author | T. O. Shcherbakova V. F. Gorobets |
| author_facet | T. O. Shcherbakova V. F. Gorobets |
| author_sort | T. O. Shcherbakova |
| collection | DOAJ |
| description | Purpose. To reveal the peculiarities of the seasonal rhythm of growth and development of Itoh Group peony cultivars in the conditions of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine.
Methods. The objects of research were plants of 24 cultivars of Itoh Group peonies. The research was conducted on the experimental field of the Department of Flowering and Ornamental Plants of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine during 2017–2020. The sum of effective temperatures was calculated by summing the daily air temperatures reduced by the biological zero.
Results. The phenological phases of Ito Group cultivars growth were determined. Phenological spectra for different groups are presented. It was determined that the flowering of early cultivars: ‘First Arrival’, ‘Hillary’, ‘Julia Rose’, ‘Morning Lilac’, ‘Old Rose Dandy’, ‘Sonoma Apricot’ starts at the sum of effective temperatures ≥ 400 °С. The middle group hybrids bloom when the sum of temperatures reaches 450 °С. This group includes: ‘Bartzella’, ‘Callie’s Memory’, ‘Cora Louise’, ‘Lollipop’, ‘Scarlet Heaven’, ‘Sonoma Velvet Ruby’, ‘Yellow Dream’, ‘Yellow Emperor’, ‘Yellow Heaven’, ‘Yellow Waterlily’. Late flowering group includes: ‘Border Charm’, ‘Garden Treasure’, ‘Kopper Kettle’, ‘Pastel Splendor’, ‘Prairie Charm’, ‘Viking Full Moon’, ‘White Emperor’, ‘Yankee Doodle Dandy’; accumulation of effective temperatures above 500 °С is an essential requirement for their flowering.
Conclusions. Itoh Group cultivars successfully pass all phases of seasonal development and manage to complete the growing season. Cultivars belong to the spring-summer-autumn-green phenorhythmotype. The onset of the corresponding phenological phases in peonies of the studied group of cultivars requires a certain sum of effective temperatures. Plant outgrowth begins on March 23 – April 2, when the sum of effective temperatures ranges from 20–40 °С. The flowering of varieties characterized as late spring, lasts 6–9 days ± 3–4 days, depending on the varietal characteristics and the year of cultivation. A rapid increase in the sum of effective temperatures up to 700 °C shortens the flowering phase by 4–5 days. An assortment of early (May 22–25 ± 2–3 days), medium (May 26–28 ± 3–5 days) and late-flowering (May 29–31 ± 4–6 days) cultivars has been selected, what ensures the continuity of peony flowering during two months. |
| format | Article |
| id | doaj-art-e4e74f538a4e4e24bbfe5bec4a1ed1b0 |
| institution | OA Journals |
| issn | 2518-1017 2518-7457 |
| language | English |
| publishDate | 2021-04-01 |
| publisher | Ukrainian Institute for Plant Variety Examination |
| record_format | Article |
| series | Plant Varieties Studying and Protection |
| spelling | doaj-art-e4e74f538a4e4e24bbfe5bec4a1ed1b02025-08-20T01:55:58ZengUkrainian Institute for Plant Variety ExaminationPlant Varieties Studying and Protection2518-10172518-74572021-04-01171142010.21498/2518-1017.17.1.2021.228202265747Phenological features of the growth and development of Itoh Group peony cultivars in the conditions of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of UkraineT. O. Shcherbakova0V. F. Gorobets1M. M. Gryshko National Botanical Garden, NAS of UkraineM. M. Gryshko National Botanical Garden, NAS of UkrainePurpose. To reveal the peculiarities of the seasonal rhythm of growth and development of Itoh Group peony cultivars in the conditions of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine. Methods. The objects of research were plants of 24 cultivars of Itoh Group peonies. The research was conducted on the experimental field of the Department of Flowering and Ornamental Plants of the M. M. Hryshko National Botanical Garden National Academy of Sciences of Ukraine during 2017–2020. The sum of effective temperatures was calculated by summing the daily air temperatures reduced by the biological zero. Results. The phenological phases of Ito Group cultivars growth were determined. Phenological spectra for different groups are presented. It was determined that the flowering of early cultivars: ‘First Arrival’, ‘Hillary’, ‘Julia Rose’, ‘Morning Lilac’, ‘Old Rose Dandy’, ‘Sonoma Apricot’ starts at the sum of effective temperatures ≥ 400 °С. The middle group hybrids bloom when the sum of temperatures reaches 450 °С. This group includes: ‘Bartzella’, ‘Callie’s Memory’, ‘Cora Louise’, ‘Lollipop’, ‘Scarlet Heaven’, ‘Sonoma Velvet Ruby’, ‘Yellow Dream’, ‘Yellow Emperor’, ‘Yellow Heaven’, ‘Yellow Waterlily’. Late flowering group includes: ‘Border Charm’, ‘Garden Treasure’, ‘Kopper Kettle’, ‘Pastel Splendor’, ‘Prairie Charm’, ‘Viking Full Moon’, ‘White Emperor’, ‘Yankee Doodle Dandy’; accumulation of effective temperatures above 500 °С is an essential requirement for their flowering. Conclusions. Itoh Group cultivars successfully pass all phases of seasonal development and manage to complete the growing season. Cultivars belong to the spring-summer-autumn-green phenorhythmotype. The onset of the corresponding phenological phases in peonies of the studied group of cultivars requires a certain sum of effective temperatures. Plant outgrowth begins on March 23 – April 2, when the sum of effective temperatures ranges from 20–40 °С. The flowering of varieties characterized as late spring, lasts 6–9 days ± 3–4 days, depending on the varietal characteristics and the year of cultivation. A rapid increase in the sum of effective temperatures up to 700 °C shortens the flowering phase by 4–5 days. An assortment of early (May 22–25 ± 2–3 days), medium (May 26–28 ± 3–5 days) and late-flowering (May 29–31 ± 4–6 days) cultivars has been selected, what ensures the continuity of peony flowering during two months.http://journal.sops.gov.ua/article/view/228202 |
| spellingShingle | T. O. Shcherbakova V. F. Gorobets Phenological features of the growth and development of Itoh Group peony cultivars in the conditions of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine Plant Varieties Studying and Protection |
| title | Phenological features of the growth and development of Itoh Group peony cultivars in the conditions of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine |
| title_full | Phenological features of the growth and development of Itoh Group peony cultivars in the conditions of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine |
| title_fullStr | Phenological features of the growth and development of Itoh Group peony cultivars in the conditions of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine |
| title_full_unstemmed | Phenological features of the growth and development of Itoh Group peony cultivars in the conditions of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine |
| title_short | Phenological features of the growth and development of Itoh Group peony cultivars in the conditions of the M. M. Gryshko National Botanical Garden of the National Academy of Sciences of Ukraine |
| title_sort | phenological features of the growth and development of itoh group peony cultivars in the conditions of the m m gryshko national botanical garden of the national academy of sciences of ukraine |
| url | http://journal.sops.gov.ua/article/view/228202 |
| work_keys_str_mv | AT toshcherbakova phenologicalfeaturesofthegrowthanddevelopmentofitohgrouppeonycultivarsintheconditionsofthemmgryshkonationalbotanicalgardenofthenationalacademyofsciencesofukraine AT vfgorobets phenologicalfeaturesofthegrowthanddevelopmentofitohgrouppeonycultivarsintheconditionsofthemmgryshkonationalbotanicalgardenofthenationalacademyofsciencesofukraine |