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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Bulletin of KSAU</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Bulletin of KSAU</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Вестник КрасГАУ</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">1819-4036</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">105757</article-id>
   <article-id pub-id-type="doi">10.36718/1819-4036-2026-3-27-37</article-id>
   <article-id pub-id-type="edn">kuxgjo</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Агрономия</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Agronomy</subject>
    </subj-group>
    <subj-group>
     <subject>Агрономия</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">EATURES OF RESPIRATION AND PHOTOSYNTHESIS IN LEAVES OF DIFFERENT-AGED TREES OF POPLAR, SILVER BIRCH, AND SCOTS PINE</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ОСОБЕННОСТИ ДЫХАНИЯ И ФОТОСИНТЕЗА ЛИСТЬЕВ У РАЗНОВОЗРАСТНЫХ ДЕРЕВЬЕВ ТОПОЛЯ, БЕРЕЗЫ ПОВИСЛОЙ И СОСНЫ ОБЫКНОВЕННОЙ</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Евлаков</surname>
       <given-names>Петр Михаилович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Evlakov</surname>
       <given-names>P. M.</given-names>
      </name>
     </name-alternatives>
     <email>peter.evlakov@yandex.ru</email>
     <bio xml:lang="ru">
      <p>кандидат биологических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of sciences in biology;</p>
     </bio>
     <xref ref-type="aff" rid="aff-1"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Амелин</surname>
       <given-names>Александр Васильевич</given-names>
      </name>
      <name xml:lang="en">
       <surname>Amelin</surname>
       <given-names>Aleksandr Vasil'evich</given-names>
      </name>
     </name-alternatives>
     <email>amelin_100@mail.ru</email>
     <xref ref-type="aff" rid="aff-2"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Жужукин</surname>
       <given-names>Константин Викторович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Zhuzhukin</surname>
       <given-names>K. V.</given-names>
      </name>
     </name-alternatives>
     <email>kinkon18@yandex.ru</email>
     <bio xml:lang="ru">
      <p>кандидат технических наук;</p>
     </bio>
     <bio xml:lang="en">
      <p>candidate of technical sciences;</p>
     </bio>
     <xref ref-type="aff" rid="aff-3"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Рыжкова</surname>
       <given-names>Владлена Сергеевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Ryzhkova</surname>
       <given-names>Vladlena Sergeevna</given-names>
      </name>
     </name-alternatives>
     <email>vladlena.r11@yandex.ru</email>
     <xref ref-type="aff" rid="aff-4"/>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Евтушенко</surname>
       <given-names>Надежда Александровна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Evtushenko</surname>
       <given-names>Nadezhda Aleksandrovna</given-names>
      </name>
     </name-alternatives>
     <email>nadya.evtushenko.94@mail.ru</email>
     <xref ref-type="aff" rid="aff-5"/>
    </contrib>
   </contrib-group>
   <aff-alternatives id="aff-1">
    <aff>
     <institution xml:lang="ru">ФГБОУ ВО Воронежский государственный лесотехнический университет им.Г.Ф. Морозова</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">ФГБОУ ВО Воронежский государственный лесотехнический университет им.Г.Ф. Морозова</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-2">
    <aff>
     <institution xml:lang="ru">ФГБОУ ВО ОрелГАУ им. Н.В. Парахина</institution>
     <city>Орел</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Orel State Agrarian University named after N.V. Parakhin</institution>
     <city>Orel</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-3">
    <aff>
     <institution xml:lang="ru">Воронежский государственный лесотехнический университет имени Г.Ф. Морозова</institution>
     <city>Воронеж</city>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">Воронежский государственный лесотехнический университет имени Г.Ф. Морозова</institution>
     <city>Воронеж</city>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-4">
    <aff>
     <institution xml:lang="ru">ФГБОУ ВО ВГЛТУ им. Г.Ф. Морозова, Воронеж, Россия</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">ФГБОУ ВО ВГЛТУ им. Г.Ф. Морозова, Воронеж, Россия</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <aff-alternatives id="aff-5">
    <aff>
     <institution xml:lang="ru">ФГБОУ ВО ВГЛТУ им. Г.Ф. Морозова, Воронеж, Россия</institution>
     <country>Россия</country>
    </aff>
    <aff>
     <institution xml:lang="en">ФГБОУ ВО ВГЛТУ им. Г.Ф. Морозова, Воронеж, Россия</institution>
     <country>Russian Federation</country>
    </aff>
   </aff-alternatives>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2026-04-03T08:40:13+03:00">
    <day>03</day>
    <month>04</month>
    <year>2026</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2026-04-03T08:40:13+03:00">
    <day>03</day>
    <month>04</month>
    <year>2026</year>
   </pub-date>
   <issue>3</issue>
   <fpage>27</fpage>
   <lpage>37</lpage>
   <history>
    <date date-type="received" iso-8601-date="2025-10-23T00:00:00+03:00">
     <day>23</day>
     <month>10</month>
     <year>2025</year>
    </date>
   </history>
   <self-uri xlink:href="https://vestnik.kgau.ru/en/nauka/article/105757/view">https://vestnik.kgau.ru/en/nauka/article/105757/view</self-uri>
   <abstract xml:lang="ru">
    <p>Цель исследований – выделение перспективных пород и сортов деревьев для последующего использования в реализации лесоклиматических проектов. Исследования проведены с использованием системного подхода и современных приборов учета показателей активности дыхания и фотосинтеза. Объекты исследования – генотипы древесных пород разного возраста: у тополя (Populus L.) – 4- и 10-летние, у березы повислой (Betula L.) – 4- и 46-летние, у сосны обыкновенной (Pinus L.) – 4- и 50-летние, которые были выращены на экспериментальном калибровочном полигоне учебно-опытного лесхоза ВГЛТУ. Для измерения скорости поглощения и выделения углекислого газа листом in vivo использовали газовый анализатор CI–340 (SID Bio-Science, США). Замеры интенсивности фотосинтеза проводили в режиме онлайн на интактных листьях деревьев в утреннее время с 08:00 до 11:00 ч, когда насыщенность клеток водой высокая, а интенсивность солнечного света и температура воздуха близки к оптимальным. Учет активности темнового дыхания осуществляли с 23:00 и до 01:00 ч. Наиболее активным темновым дыханием отличались листья быстрорастущего тополя, который превосходил по значению данного показателя березу повислую в среднем на 21,0 %, а сосну обыкновенную на 26,3 %. Видовые различия по активности фотосинтеза были идентичны. У 10-летнего тополя (сорт ʻЭ.с.-38ʼ) значения интенсивности фотосинтеза и темнового дыхания были на 9,6 и 15,8 %, у 46-летней березы повислой (сорт ʻУг.-1ʼ) на 32,6 и 13,3 %, а у 50-летней сосны обыкновенной на 10,9 и 14,0 % меньше по сравнению с деревьями 4-летнего возраста. В создании лесоклиматических проектов по улучшению экологии среды обитания и производства наиболее перспективным из изученных пород деревьев является быстрорастущий тополь.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The objective of research is to identify promising tree species and cultivars for subsequent use in forest climate projects. The study was conducted using a systems approach and modern instruments for measuring respiration and photosynthesis activity. The objects of the study were tree genotypes of different ages: 4- and 10-year-old poplar (Populus L.), 4- and 46-year-old silver birch (Betula L.), and 4- and 50-year-old Scots pine (Pinus L.), which were grown on the experimental calibration site of the VSTU educational and experimental forestry enterprise. A CI-340 gas analyzer (SID Bio-Science, USA) was used to measure the rate of carbon dioxide absorption and emission by leaves in vivo. Online measurements of photosynthesis rates were taken on intact tree leaves in the morning from 8:00 AM to 11:00 AM, when cell water saturation is high and sunlight intensity and air temperature are close to optimal. Dark respiration activity was recorded from 11:00 PM to 1:00 AM. The leaves of fast-growing poplar exhibited the most active dark respiration, exceeding those of silver birch by an average of 21.0% and Scots pine by 26.3%. Species-specific differences in photosynthetic activity were identical. In 10-year-old poplar (variety 'E.s.-38'), the photosynthesis intensity and dark respiration rates were 9.6 and 15.8 % lower, respectively; in 46-year-old silver birch (variety Ug.-1), they were 32.6 and 13.3 % lower, respectively; and in 50-year-old Scots pine, they were 10.9 and 14.0% lower, respectively, compared to 4-year-old trees. Fast-growing poplar is the most promising of the studied tree species for the development of forest climate projects to improve the ecology of habitats and production.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>дыхание</kwd>
    <kwd>фотосинтез</kwd>
    <kwd>устьичная проводимость</kwd>
    <kwd>видовые и генотипические особенности</kwd>
    <kwd>тополь</kwd>
    <kwd>береза повислая</kwd>
    <kwd>сосна обыкновенная</kwd>
    <kwd>экология среды обитания</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>respiration</kwd>
    <kwd>photosynthesis</kwd>
    <kwd>stomatal conductance</kwd>
    <kwd>species and genotypic characteristics</kwd>
    <kwd>poplar</kwd>
    <kwd>silver birch</kwd>
    <kwd>Scots pine</kwd>
    <kwd>habitat ecology</kwd>
   </kwd-group>
   <funding-group>
    <funding-statement xml:lang="ru">исследование проводилось в рамках государственного задания Министерства науки и высшего образования Российской Федерации № 1025032100180-3-1.6.11 «Разработка научно обоснованной технологии ускоренного выращивания стандартного посадочного материала лиственных и хвойных древесных пород методами клонального микроразмножения in vitro, а также семенного in vivo для создания углерододепонирующих насаждений в условиях глобальных климатических и антропогенных изменений лесостепной зоны Европейской части России» (FZUR-2026-0005)».</funding-statement>
    <funding-statement xml:lang="en">the study was conducted within the framework of the State Assignment of the Ministry of Science and Higher Education of the Russian Federation No. 1025032100180-3-1.6.11 Development of a Scientifically Substantiated Technology for Accelerated Cultivation of Standardized Planting Material of Deciduous and Coniferous Tree Species by In vitro Clonal Micropropagation Methods, as well as In vivo Seed Propagation for the Creation of Carbon-Storing Plantations in the Context of Global Climate and Anthropogenic Change in the Forest-Steppe Zone of European Russia (FZUR-2026-0005).</funding-statement>
   </funding-group>
  </article-meta>
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