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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">spir</journal-id><journal-title-group><journal-title xml:lang="ru">Spiraeanthus</journal-title><trans-title-group xml:lang="en"><trans-title>Spiraeanthus</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">3079-6245</issn><publisher><publisher-name>Институт ботаники и фитоинтродукции</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.71130/3079-6245-2026-8-3-70-77</article-id><article-id custom-type="elpub" pub-id-type="custom">spir-141</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>Эффективность интерполимерных комплексов при выращивании сеянцев сосны обыкновенной третьей ротации</article-title><trans-title-group xml:lang="en"><trans-title>Efficiency of Interpolymer Complexes in Growing Scots Pine Seedlings During the Third Rotation</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рахметов</surname><given-names>С. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Рахметов</surname><given-names>С. Б.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Семей.</p></bio><email xlink:type="simple">eco_semey@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Рахметова</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Рахметова</surname><given-names>Ю. А.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Кокшетау.</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>РГУ «Государственный лесной природный резерват «Семей орманы», Комитет лесного хозяйства и животного мира, Министерство экологии и природных ресурсов Республики Казахстан</institution><country>Kazakhstan</country></aff><aff xml:lang="ru" id="aff-2"><institution>НАО «Кокшетауский университет им. Ш. Уалиханова»</institution><country>Kazakhstan</country></aff><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>22</day><month>10</month><year>2026</year></pub-date><volume>0</volume><issue>3</issue><fpage>70</fpage><lpage>77</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Рахметов С.Б., Рахметова Ю.А., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Рахметов С.Б., Рахметова Ю.А.</copyright-holder><copyright-holder xml:lang="en">Рахметов С.Б., Рахметова Ю.А.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://journal.botsad.kz/jour/article/view/141">https://journal.botsad.kz/jour/article/view/141</self-uri><abstract><p>Актуальность исследования обусловлена необходимостью увеличения объёмов качественного посадочного материала сосны обыкновенной (Pinus ylvestris L.) для лесовосстановления в ленточных борах Прииртышья. Целью работы являлась оценка возможности получения стандартных сеянцев с закрытой корневой системой при проведении третьей ротации с использованием биостимуляторов и интерполимерных комплексов на основе хитозана и натрий карбоксиметилцеллюлозы. Исследования проводили с 2021 года на базе Комплекса лесного питомника и лесосеменной станции Канонерского филиала РГУ «ГЛПР «Семей орманы». Оценивали посевные качества семян, сроки появления всходов, высоту сеянцев, развитие корневой системы и выход стандартного посадочного материала. Лабораторная всхожесть семян составила 95 %. В первой ротации массовые всходы при использовании интерполимерных комплексов появлялись на 4–5-е сутки против 7-х суток в контроле; средняя высота сеянцев составляла 8,7–10,6 см, а доля стандартного материала достигала 83 %. Во второй ротации средняя высота достигала 9,4 см, выход товарного материала до 70 %. В третьей ротации высота сеянцев не превышала 3 см, стандартный посадочный материал получен не был, а корневой ком не сформировался. Полученные результаты указывают на существенное влияние условий выращивания на эффективность биополимерных препаратов. Практическая ценность работы заключается в обосновании необходимости оптимизации сроков третьей ротации и микроклимата теплиц. Для окончательной количественной оценки причин неудачи третьей ротации необходимы дополнительные инструментальные данные о температуре, освещённости, влажности и водно воздушном режиме субстрата.</p></abstract><trans-abstract xml:lang="en"><p>The study addresses the need to increase the production of high-quality Scots pine ( Pinus ylvestris L.) planting stock for forest restoration in the Irtysh ribbon pine forests. The aim was to assess whether standard containerized seedlings could be produced during a third growing rotation using biostimulants and interpolymer complexes based on chitosan and sodium carboxymethylcellulose. The study has been conducted since 2021 at the Forest Nursery and Forest Seed Station Complex of the Kanonersky branch of the State Forest Natural Reserve «Semey Ormany». Seed quality, emergence timing, seedling height, root development and the yield of standard planting stock were assessed. Laboratory germination reached 95%. During the first rotation, mass emergence occurred on days 4–5 in the interpolymer treatments compared with day 7 in the control; mean seedling height was 8.7–10.6 cm and the proportion of standard planting stock reached 83%. During the second rotation, mean height reached 9.4 cm and the yield of marketable planting stock was up to 70%. During the third rotation, seedling height did not exceed 3 cm, no standard planting stock was obtained, and the root plug failed to form. The results indicate that the effectiveness of biopolymer treatments depends substantially on nursery growing conditions. The practical significance of the study is related to optimizing the timing of the third rotation and greenhouse microclimate. Definitive quantitative attribution of the third-rotation failure to specific environmental factors requires additional instrumental measurements of temperature, light, substrate moisture and water–air conditions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Pinus sylvestris L.</kwd><kwd>закрытая корневая система</kwd><kwd>третья ротация</kwd><kwd>интерполимерный комплекс</kwd><kwd>лесной питомник</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Pinus sylvestris L.</kwd><kwd>containerized seedlings</kwd><kwd>third rotation</kwd><kwd>interpolymer complex</kwd><kwd>forest nursery</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Zhumadina S., Chlachula J., Zhaglovskaya-Faurat A., Czerniawska J., Satybaldieva G., Nurbayeva N., Mapitov N., Myrzagaliyeva A., Boribay E. Environmental dynamics of the ribbon-like pine forests in the parklands of North Kazakhstan. 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