Peculiarities of seasonal development and influence of ecological factors on the growth of thuja giant (Thuja Plicata Donn Ex D. Don) in the conditions of introduction in the right-bank forest-steppe of Ukraine

https://doi.org/10.17221/52/2019-JFSCitation:Ivashchenko I., Adamenko S., Shlapak V. (2019): Peculiarities of seasonal development and influence of ecological factors on the growth of thuja giant (Thuja Plicata Donn Ex D. Don) in the conditions of introduction in the right-bank forest-steppe of Ukraine. J. For. Sci., 65: 346-355.
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Generalization and analysis of experimental data concerning peculiarities of passing and duration of various phenological phases of Th. plicata, their consistency with the sums of effective temperatures is provided in the article. Conducted researches based on observations and mathematical processing allowed to reveal the regularity of passing of all vegetative and generative phases in the area of introduction and to reveal the dependence of these processes on ecological factors. It was found that the vegetation period of this species is 151 ± 3 days. Influence of nature and degree of temperature, air humidity and rainfall on the growth of shoots were also determined. It turned out that air temperature has the greatest influence on the growth peculiarities of one-year shoots. Growth of shoots begins after changing of the average daily temperature above +9°C. Culmination of increments is observed in May, when the temperature is 1318°С. Then, increments are fading with the increase in temperature and decrease in humidity and the second wave of growth occurs in August. Shoots completely finish their growth in September. Precipitation and humidity do not have a significant effect on the growth of shoots.

References:
Adamenko S.A., V. Shlapak, I. Kozachenko, M. Parubok. (2018): Peculiarities of seasonal growth of Pinus nigra J.F. Arnold under the conditions of introduction in the Right-Bank Forest-Steppe of Ukraine. Journal of Forest Science, 64: 340–344. https://doi.org/10.17221/63/2018-JFS
 
Fuertes-Rodríguez C. R., González-Parrado Z., Vega-Maray A. M., Valencia-Barrera R. M., Fernández-González D. (2007): Effect of air temperature on forecasting the start of Cupressaceae pollen type in Ponferrada (León, Spain). Ann Agric Environ Med, 14: 237–242.
 
Harrington C.A., Ford K.R., St. Clair J.B. (2016): Phenology of Pacific Northwest Tree Species. Tree Planters’ Notes. Volume 59, Number 2: 76–85.
 
Kalinichenko O.A. (2000) Methodical instructions on studying discipline Dendrology. Кyiv, NVK NAU: 14. (in Ukrainian).
 
Kischenko I. Т. (2011): Seasonal growth and development of native and introduced conifers in the taiga zone of Russia. Petrozavodsk, Petersburg State University: 372 (in Russian).
 
Kischenko I. Т., Vantenkova I. V. (2011): Seasonal growth of forest-forming species in the taiga zone of Russia. Petrozavodsk, Petersburg State University: 321 (in Russian).
 
Molchanov А. А., Smirnov V. V. (1967): Technique of studying the growth of woody plants. Moskva, Nauka: 95 (in Russian).
 
Parker T., Johnson F. D. (1987) Branching and Terminal Growth of Western Redcedar. Northwest Science, 61: 7–12.
 
Medvedev V.A., Ilyenko O.O. (2013) Results of introduction of wood ornamental plants in Pryozerno-Balkovy landscape area of the arboretum Trostyanec. Plant introduction. 1: 83-91 (in Ukrainian).
 
Technique of phenological observations in the botanical gardens of the USSR (1975), Moskva, Nauka: 8 (in Russian).
 
Termena B.K., Vykolyuk M.I., Goruk O.I. (1084). About the seasonal development of woody plants due to their adaptive capabilities. Bulletin GBS, 130: 23–29 (in Russian).
 
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