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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2658-6649</journal-id>
      <journal-id journal-id-type="eissn">2658-6657</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Siberian Journal of Life Sciences and Agriculture</journal-title>
        <journal-title xml:lang="en">Siberian Journal of Life Sciences and Agriculture</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name>Science and Innovation Center Publishing House</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.12731/2658-6649-2025-17-5-1645</article-id>
      <article-id pub-id-type="edn">LEDGBH</article-id>
      <article-id pub-id-type="uri">https://discover-journal.ru/jour/index.php/sjlsa/article/view/1645</article-id>
      <article-categories>
        <subj-group>
          <subject>Агрохимия и агропочвоведение</subject>
        </subj-group>
        <subj-group>
          <subject>Agrochemistry and Agricultural Soil Science</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="ru">Содержание марганца в листьях чая (Camellia sinensis (L.) O. Kuntze) сорта Колхида на фоне применения различных видов удобрений в условиях субтропиков Российской Федерации</article-title>
        <trans-title-group xml:lang="en">
          <trans-title>Manganese content in tea leaves (Camellia sinensis (L.) O. Kuntze) of the Colchis variety against the background of the use of various types of fertilizers in the subtropical conditions of the Russian Federation</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <name name-style="eastern">
            <surname>Великий</surname>
            <given-names>Андрей Васильевич</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Великий</surname>
              <given-names>Андрей Васильевич</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Velikii</surname>
              <given-names>Andrey V.</given-names>
            </name>
          </name-alternatives>
          <email>kriptozoorxon@mail.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Федеральный исследовательский центр «Субтропический научный центр Российской академии наук» (Сочи, Российская Федерация)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">Federal Research Centre the Subtropical Scientific Centre of the Russian Academy of Sciences (Sochi, Russian Federation)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2025-11-30">
        <day>30</day>
        <month>11</month>
        <year>2025</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2025</year>
      </pub-date>
      <volume>17</volume>
      <issue>5</issue>
      <fpage>366</fpage>
      <lpage>382</lpage>
      <history>
        <date date-type="received" iso-8601-date="2025-03-10">
          <day>10</day>
          <month>03</month>
          <year>2025</year>
        </date>
        <date date-type="accepted" iso-8601-date="2025-05-12">
          <day>12</day>
          <month>05</month>
          <year>2025</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2025-04-28">
          <day>28</day>
          <month>04</month>
          <year>2025</year>
        </date>
      </history>
      <permissions>
        <copyright-year>2025</copyright-year>
        <copyright-holder xml:lang="ru">А.В. Великий</copyright-holder>
        <copyright-holder xml:lang="en">A.V. Velikii</copyright-holder>
        <license xlink:href="https://creativecommons.org/licenses/by-nc-nd/4.0/">
          <license-p>CC BY-NC-ND 4.0</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://discover-journal.ru/jour/index.php/sjlsa/article/view/1645">https://discover-journal.ru/jour/index.php/sjlsa/article/view/1645</self-uri>
      <abstract xml:lang="ru">
        <p>Обоснование. Элементный состав чая определяет не только его пищевкусовые свойства, но и является источником основных элементов, необходимых для нормального функционирования нашего организма, так как в современном мире мы часто сталкиваемся с дефицитом важных элементов в результате несбалансированного питания. 
 
Особое место в чае занимают микроэлементы, к которым относятся железо (Fe), цинк (Zn), медь (Cu) и марганец (Mn). Чайные растения накапливают большие количества Mn в листьях, что может являться важным источником этого микроэлемента в пищевом рационе человека. Однако необходимо отмечать, что чрезмерное потребление чая может привести к избыточному поступлению марганца в организм. 
 
Впервые в субтропической зоне России были изучены вопросы взаимодействия марганца и корневого применения ряда важнейших микроэлементов (Mg, Ca, S, Zn, B), были выявлены закономерности их влияния на содержание марганца в листьях чайного растения, также дана оценка влияния метеорологических факторов на накопление марганца. 
 
Цель исследования. Определение закономерностей поступления соединений марганца из почвы и его накопление в листьях растений чая на фоне разного минерального питания, с точки зрения пищевой безопасности сельскохозяйственной продукции. 
 
Материалы и методы. Исследования были проведены в зоне Черноморского побережья Краснодарского края на чайной плантации сорта Колхида. Опыт включает 7 вариантов: контрольный и 6 вариантов с микроэлементами. 
 
По вариантам опыта проводили отборы зрелых листьев и ювенильных побегов (3-листная флешь) в течение вегетации в период 2012–2023 гг. Пробоподготовку листьев осуществляли ускоренным методом кислотного (мокрого) озоления по К.Е. Гинзбург и др. (1963). 
 
Результаты. Установлено, что в зрелых листьях минимальное содержание марганца составило 1290 мг/кг, а максимальное 3705 мг/кг, и была выявлена прямая связь содержания марганца с суммой осадков r=0,42. Уровень марганца в 3-листной флеши колебался от 476 в первую волну роста до 1246 мг/кг в конце периода сбора флешей, и была установлена прямая корреляционная связь содержания марганца со среднемесячными показателями температуры r=0,56. 
 
Выявлено, что применение бора, несмотря на повышение урожайности, привело к снижению содержания марганца в ювенильных побегах на 11,7–16,7 % в июле-августе и на 23,6 % в сентябре по сравнению с контрольной группой. 
 
Заключение. Полученные результаты показывают сложную взаимосвязь между содержанием марганца, климатическими условиями и применением удобрений.</p>
      </abstract>
      <trans-abstract xml:lang="en">
        <p>Background. The elemental composition of tea determines not only its food-flavoring properties, but is also a source of essential elements necessary for the normal functioning of our body, as in the modern world we often face a shortage of important elements as a result of an unbalanced diet. 
 
A special place in tea is occupied by trace elements, which include iron (Fe), zinc (Zn), copper (Cu) and manganese (Mn). Tea plants accumulate large amounts of Mn in their leaves, which may be an important source of this trace element in the human diet. However, it should be noted that excessive consumption of tea can lead to excessive intake of manganese into the body. 
 
For the first time in the subtropical zone of Russia, the interaction of manganese and the root application of a number of important trace elements (Mg, Ca, S, Zn, B) were studied, patterns of their influence on the manganese content in the leaves of the tea plant were identified, and the influence of meteorological factors on the accumulation of manganese was assessed. 
 
Purpose. To determine the patterns of the intake of manganese compounds from the soil and its accumulation in the leaves of tea plants against the background of different mineral nutrition, from the point of view of food safety of agricultural products. 
 
Materials and methods. The research was conducted in the area of the Black Sea coast of the Krasnodar Territory on a Colchis tea plantation. The experience includes 7 options: control and 6 options with trace elements. According to the experimental variants, mature leaves and juvenile shoots (3-leaf flush) were selected during the growing season in the period 2012-2023. The sample preparation of the leaves was carried out by the accelerated method of acid (wet) ozonization according to K.E. Ginzburg et al. (1963). 
 
Results. It was found that the minimum manganese content in mature leaves was 1290 mg/kg, and the maximum was 3705 mg/kg, and a direct relationship was found between the manganese content and precipitation r=0.42. The manganese level in the 3-leaf flask ranged from 476 mg/kg in the first growth wave to 1246 mg/kg at the end of the flask collection period, and a direct correlation was established between the manganese content and the monthly average temperature r=0.56. It was revealed that the use of boron, despite the increase in yield, led to a decrease in the manganese content in juvenile shoots by 11.7–16.7% in July-August and by 23.6% in September compared with the control group. 
 
Conclusion. The results show a complex relationship between manganese content, climatic conditions, and fertilizer application.</p>
      </trans-abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>чай</kwd>
        <kwd>тяжелые металлы</kwd>
        <kwd>концентрация марганца</kwd>
        <kwd>влияние удобрений</kwd>
        <kwd>зрелый лист</kwd>
        <kwd>ювенильный побег</kwd>
        <kwd>сезонная и годовая динамики</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>tea</kwd>
        <kwd>heavy metals</kwd>
        <kwd>copper concentration</kwd>
        <kwd>fertilizer effect</kwd>
        <kwd>Mature leaf</kwd>
        <kwd>juvenile shoot</kwd>
        <kwd>seasonal and annual dynamics</kwd>
      </kwd-group>
      <funding-group>
        <funding-statement xml:lang="ru">Работа подготовлена в рамках реализации государственного задания ФИЦ СНЦ РАН FGRW-2024-0001, № госрегистрации 124022000098-6.</funding-statement>
      </funding-group>
    </article-meta>
  </front>
  <body/>
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