Please use this identifier to cite or link to this item:
Title: The iıntroduced north american species of the genus Juglans L. in the Right-bank forest-steppe of Ukraine and their use
Other Titles: Інтродуковані північноамериканські види роду Juglans L. в Правобережному Лісостепу України та їх використання
Authors: Ishchuk, Halyna
Іщук, Галина Петрівна
Shlapak, Volodymyr
Шлапак, Володимир Петрович
Ishchuk, Lubov
Іщук, Любов Петрівна
Bayura, Olexander
Баюра, Олександр Михайлович
Kurka, Svitlana
Курка, Світлана Сергіївна
Keywords: North American Juglans spp.;північноамериканські Juglans spp.;growth;ріст;сезонний ритм розвитку;flowering;цвітіння;fruit bearing;плодоношення;winter and frost resistance;зимостійкість та морозостійкість;introduction;інтродукція;forest crops;лісові культури
Issue Date: Apr-2021
Publisher: Trakya Univ J Nat Sci
Series/Report no.: 22 (1);77-99
Abstract: The article presents generalized scientific researches and experimental data on the bioecological peculiarities of the North American species of the Juglans L. genus. The peculiarities of the seasonal rhythm of development are revealed. Juglans cinerea L., J.rupestris Engelm. and J. major (Torr.) A. Heller were the first to wake up and J. nigra L., J. californica S. Wats., and J. hindsii (Jeps.) Jeps. ex R.E. Sm. wake up a little later. The biorhythm of woody plants is closely related to the increase in the sum of active (+10°C) and effective (+5°C) temperatures. Juglans cinerea and J. rupestrisrequire the smallest sum of effective temperatures for buds swelling, that is 28.9 and 34.1°C, respectively; J. hindsii require the largest sum of effective temperatures -57.1°C and J. nigra require 50.6°C. Investigation of growth dynamics shows that intensive growth of all species of the Juglans genus was observed in May-June. The vegetation period in all Juglans species lasts 183-206 days. The development cycle of North American walnuts under research conditions is shifted towards the summer-autumn period. When determining frost resistance, it was found that the species are characterized by an average degree of subfreezing. All species genus are promising for use in ornamental horticulture of the Right-Bank Forest-Steppe of Ukraine, as evidenced by the full acclimatization of J. nigra and J. cinerea, good acclimatization of J. rupestris and J. major and satisfactory acclimatization of J. сalifornica and J. hindsii. It is established that J. nigra are promising for the development of highly productive forest plantations.
Appears in Collections:Наукові публікації

Files in This Item:
File Description SizeFormat 
the_introduced.pdf1,81 MBAdobe PDFView/Open

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.