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 <front>
  <journal-meta>
   <journal-id journal-id-type="publisher-id">Bulletin of Nizhnevartovsk State University</journal-id>
   <journal-title-group>
    <journal-title xml:lang="en">Bulletin of Nizhnevartovsk State University</journal-title>
    <trans-title-group xml:lang="ru">
     <trans-title>Вестник Нижневартовского государственного университета</trans-title>
    </trans-title-group>
   </journal-title-group>
   <issn publication-format="print">2311-1402</issn>
   <issn publication-format="online">2686-8784</issn>
  </journal-meta>
  <article-meta>
   <article-id pub-id-type="publisher-id">110613</article-id>
   <article-id pub-id-type="doi">10.36906/2311-4444/25-4/02</article-id>
   <article-categories>
    <subj-group subj-group-type="toc-heading" xml:lang="ru">
     <subject>Экология растений</subject>
    </subj-group>
    <subj-group subj-group-type="toc-heading" xml:lang="en">
     <subject>Plant Ecology</subject>
    </subj-group>
    <subj-group>
     <subject>Экология растений</subject>
    </subj-group>
   </article-categories>
   <title-group>
    <article-title xml:lang="en">VARIABILITY OF THE MAIN SYSTEMATIC FEATURES OF THE HYBRID SHAPE OF FIRS PICEA ABIES AND P. OBOVATA (PINACEAE)</article-title>
    <trans-title-group xml:lang="ru">
     <trans-title>ИЗМЕНЧИВОСТЬ ОСНОВНЫХ СИСТЕМАТИЧЕСКИХ ПРИЗНАКОВ ГИБРИДНОЙ ФОРМЫ ЕЛЕЙ PICEA ABIES И P. OBOVATA (PINACEAE)</trans-title>
    </trans-title-group>
   </title-group>
   <contrib-group content-type="authors">
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Казанцева</surname>
       <given-names>Мария Николаевна</given-names>
      </name>
      <name xml:lang="en">
       <surname>Kazanceva</surname>
       <given-names>Mariya Nikolaevna</given-names>
      </name>
     </name-alternatives>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Попов</surname>
       <given-names>Петр Петрович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Popov</surname>
       <given-names>Petr Petrovich</given-names>
      </name>
     </name-alternatives>
    </contrib>
    <contrib contrib-type="author">
     <name-alternatives>
      <name xml:lang="ru">
       <surname>Арефьев</surname>
       <given-names>Станислав Павлович</given-names>
      </name>
      <name xml:lang="en">
       <surname>Aref'ev</surname>
       <given-names>Stanislav Pavlovich</given-names>
      </name>
     </name-alternatives>
    </contrib>
   </contrib-group>
   <pub-date publication-format="print" date-type="pub" iso-8601-date="2025-12-25T00:35:14+03:00">
    <day>25</day>
    <month>12</month>
    <year>2025</year>
   </pub-date>
   <pub-date publication-format="electronic" date-type="pub" iso-8601-date="2025-12-25T00:35:14+03:00">
    <day>25</day>
    <month>12</month>
    <year>2025</year>
   </pub-date>
   <issue>4</issue>
   <fpage>16</fpage>
   <lpage>28</lpage>
   <history>
    <date date-type="received" iso-8601-date="2025-12-06T00:35:14+03:00">
     <day>06</day>
     <month>12</month>
     <year>2025</year>
    </date>
    <date date-type="accepted" iso-8601-date="2025-12-15T00:35:14+03:00">
     <day>15</day>
     <month>12</month>
     <year>2025</year>
    </date>
   </history>
   <self-uri xlink:href="https://vestnik.nvsu.ru/en/nauka/article/110613/view">https://vestnik.nvsu.ru/en/nauka/article/110613/view</self-uri>
   <abstract xml:lang="ru">
    <p>Работа посвящена изучению индивидуальной и географической изменчивости основных систематических признаков гибридной (промежуточной) формы елей европейской (Picea abies (L.) Karst.) и сибирской (P. obovata Ledeb.) – длины шишек и формы семенных чешуй. Ее актуальность определяется тем¸ что эти признаки у гибридных популяций ели изучены недостаточно и главным образом визуально-описательным путем. Основная методическая особенность данного исследования заключаются в использовании метрических и приемов обработки математико-статистических большого исходного материала. Использован материал с 24 ключевых участков в районе распространения гибридной формы ели на территории России. Выборка шишек с каждого участка включала не менее 100 штук (по одной с дерева); общее число деревьев составило 4581 экземпляр. Анализ полученного материала показал, что, в популяциях гибридной формы елей P. abies и P. obovata сложились промежуточные параметры основных систематических признаков. Средняя длина шишек гибридной формы ели составляет 76(63–91) мм. Коэффициенты сужения (coefficient of narrowing – Cn) и вытянутости (coefficient of projection – Cp) верхней части семенных чешуй равны соответственно 45(36–54) и 52(47–71)%, их разность (Cn–Cp) находится в пределах от -16 до +23%. Индивидуальная (внутрипопуляционная) изменчивость этих признаков значительно выше географической. В межпопуляционной изменчивости показателей формы семенных чешуй и длины шишек имеется корреляция среднего уровня. Результаты исследования позволяют обосновать морфологогеографическую дифференциацию промежуточной формы ели на три группы в пределах общего района ее распространения, а также могут быть использованы для выделения более мелких таксонов гибридной формы елей P. abies и P. obovata. Учитывая наличие связи рассматриваемых параметров с количеством и качеством семян в шишках, полученные результаты могут быть полезны для практического лесоводства при отборе наиболее перспективных лесосеменных участков.</p>
   </abstract>
   <trans-abstract xml:lang="en">
    <p>The article is devoted to the study of individual and geographical variability of the main systematic traits of the hybrid (intermediate) form of European spruce (Picea abies (L.) Karst.) and Siberian (P. obovata Ledeb.) - the length of the cones and the shape of the seed scales. The relevance of the study is determined by the fact that these traits in hybrid populations of spruce have been insufficiently studied and mainly by visual-descriptive means. The main methods of this study are the use of metric and mathematicalstatistical techniques for processing large source material. The material was collected at 24 sites in the area of distribution of the hybrid form of spruce on the territory of Russia. The sample of cones from each plot included at least 100 pieces (one from a tree); the total number of trees was 4581 specimens. The analysis of the obtained material showed that intermediate parameters of the main systematic features were formed in the populations of the hybrid form of European and Siberian spruce. The average length of cones of a hybrid form of spruce is 76 (63–91) mm. The coefficients of narrowing (Cn) and projection (Cp) of the upper part of the seed scales are 45(36–54) and 52(47–71)%, respectively, their difference (Cn–Cp) is in the range from -16 to +23%. Individual (intrapopulation) variability of these traits is much higher than the geographical one. In the interpopulation variability of the parameters of the shape of the seed scales and the length of the cones, there is a correlation of the average level. The results of the study make it possible to substantiate the morphological and geographical differentiation of the intermediate form of spruce into three groups within the general area of its distribution, and can also be used to identify smaller taxa of the hybrid form of European and Siberian spruces. Given the relationship between the parameters under consideration and the quantity and quality of seeds in cones, the results obtained can be useful for practical forestry in the selection of the most promising forest-seed plots.</p>
   </trans-abstract>
   <kwd-group xml:lang="ru">
    <kwd>Picea abies; P. obovata; гибридная форма ели; длина шишек; показатели формы семенных чешуй; изменчивость; корреляция</kwd>
   </kwd-group>
   <kwd-group xml:lang="en">
    <kwd>Picea abies; P. obovata; hybrid shape of spruce; length of cones; indicators of seed scales shape; variability; correlation</kwd>
   </kwd-group>
  </article-meta>
 </front>
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