https://journal.sops.gov.ua/ <p>“Plant Varieties Studying and Protection” Journal of Applied Research is scientific research publishing of Ukrainian Institute for Plant Variety Examination, Plant Breeding &amp; Genetics Institute, National Center of Seeds and Cultivar Investigation of NAAS, Institute of Plant Physiology and Genetics, National Academy of Sciences Of Ukraine, which are its co-founder.</p> <p>It is inacceptable for the publisher to break the established terms of publication and release of any issue of the Journal out-of-term.</p> <p>Periodicity period for 2016 is four times a year (1 times per quarter).</p> <p>The Journal is registered in International Standard Serial Number. ISSN − 2518-1017.</p> <p>The journal is licensed <a href="https://creativecommons.org/licenses/by-sa/4.0/" rel="license">Creative Commons Attribution-ShareAlike 4.0 International License</a><br /><a href="https://creativecommons.org/licenses/by-sa/4.0/" rel="license"><img style="border-width: 0pt;" src="https://i.creativecommons.org/l/by-sa/4.0/88x31.png" alt="Creative Commons License" /></a></p> <p>Distribution: domestic, foreign.</p> <p class="western" align="JUSTIFY">According to the order of the Ministry of Education and Science of Ukraine No 515 of May 16, 2016 "On approving the decisions of the Attestation Board of the Ministry on specialized academic councils activity of May 12, 2016" (Annex 12 to the order,(<a href="https://old.mon.gov.ua/ua/about-ministry/normative/5526-">https://old.mon.gov.ua/ua/about-ministry/normative/5526-</a> ), the journal "Plant variety studying and protection" is registered in the List of scientific professional editions of Ukraine in which results of theses research for obtaining a Ph.D. degree (Agriculture and Biology) can be published.</p> <p>The Journal is open for free access by the V.I. Vernadsky National Library of Ukraine (<a href="https://www.nbuv.gov.ua/">https://www.nbuv.gov.ua</a> )</p> <p>The Journal publishes the articles the Ukrainian and English languages.</p> <p>The Journal is published based on the decision of the Academic Council of Ukrainian Institute for Plant Variety Examination.</p> <p>Editorial Board of the Journal includes 36 Doctors of Science including 13 foreign members.</p> <p>The Journal has own web-site <a>https://journal.sops.gov.ua </a></p> <p>Subscription order of Plant Varieties Studying and Protection Journal can be made at Post Office of Ukraine. Ukrainian subscription index of the print version – 89273.</p> <p>The editorial board does not provide fee to authors of articles. Materials are published for free.</p> <p>All organizational and financial costs of the collection issuing are covered by Ukrainian Institute for Plant Variety Examination</p> <p>The editorial board considers as a priority to include the Journal into international abstract and scientometric databases, including Scopus and Web of Science.</p> <p>With best regards,</p> <p>Editor-in-chief of the «Plant Varieties Studying and Protection» Journal, </p> <h4>Serhiy Melnyk</h4> Ukrainian Institute for Plant Variety Examination en-US Plant varieties studying and protection 2518-1017 <p>Starting in 2022, the copyright to the publication remains with the authors</p> <p>Our journal abides by the CREATIVE COMMONS copyright rights and permissions for open access journals.</p> <p>Authors, who are published in this journal, agree to the following conditions:</p> <ol> <li>The authors reserve the right to authorship of the work and pass the first publication right of this work to the journal under the terms of a Creative Commons Attribution License, which allows others to freely distribute the published research with the obligatory reference to the authors of the original work and the first publication of the work in this journal.</li> <li>The authors have the right to conclude separate supplement agreements that relate to non-exclusive work distribution in the form in which it has been published by the journal (for example, to upload the work to the online storage of the journal or publish it as part of a monograph), provided that the reference to the first publication of the work in this journal is included.</li> </ol> https://journal.sops.gov.ua/article/view/333455 <p><strong>Purpose.</strong> To analyze the growth characteristics of six varieties of basket willow plantations over eight years of cultivation in the Right-Bank Forest-Steppe of Ukraine. Establish the optimal age for harvesting biomass. <strong>Methods.</strong> Field, laboratory, analytical and statistical. <strong>Results.</strong> Biometric studies of eight-year-old shoots from plantations revealed differences in their height, diameter, and weight. The cultivar ‘Inger’ had the highest values: 6.42 m, 3.3 cm, and 1.76 kg, respectively. The values were slightly lower for ‘Tordis’: 6.25 m, 3.1 cm, and 1.67 kg. The heights of the other varieties ranged from 5.90 m (‘Warm-maz’) to 6.13 m (‘Wilhelm’), the diameters ranged from 1.85 cm (‘Gigantea’) to 2.55 cm (‘Marzencinski’), and the dry weights of the shoots ranged from 0.89 kg (‘Gigantea’) to 1.05 kg (‘Marzencinski’). Dry biomass productivity ranged from 9.55 t/ha (‘Gigantea’) to 36.9 t/ha (‘Inger’). A significant decrease in annual height growth was observed in all the studied cultivars: after five years in ‘Tordis’, after four years in ‘Wilhelm’, ‘Inger’, ‘Gigantea’, and ‘Marzencinski’, and after three years in ‘Warm-maz’. A significant decrease in diameter growth was observed after five years in ‘Wilhelm’, after three years in ‘Tordis’, and after four years in the rest. <strong>Conclusions.</strong> The first harvesting of biomass from the studied plantations should be carried out at the age of four years, and the subsequent harvesting at the age of three or two years.</p> Ya. D. Fuchylo T. A. Levchuk Copyright (c) 2025 Ya. D. Fuchylo, T. A. Levchuk http://creativecommons.org/licenses/by-sa/4.0 2025-06-30 2025-06-30 21 2 10.21498/2518-1017.21.2.2025.333455