Assessment of morphometric indexes in the second generation of Scots pine trees in the Chernobyl exclusion zone

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Abstract


Background. A series of morphometric indexes was studied in Scots pine trees, which are the second generation of trees severely exposed at the Chernobyl accident in doses of 4-5, 10-20 and 80-100 Gy. Materials and methods. Variability of length and mass of needles, curvature of sprouts, tree height and trunk circumference were studied in 2011-2014. Results. Needle gigantism, one of the typical radiomorphoses, was observed in 2012 and 2013 in all groups of trees. Curved sprouts were discovered more often in a reference group. Tree height and trunk circumference in groups of 4-5 and 10-20 Gy were significantly higher than in the reference group. Conclusion. The trees of the second generation of severely exposed pines can be characterized with needle gigantism and stimulation of growth processes (circumference of the trunk, height of the tree) at doses of 4-5 Gy and 10-20 Gy.

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About the authors

Ekaterina Sergeevna Makarenko

Russian Institute of Radiology and Agroecology

Email: makarenko_ek_obninsk@mail.ru
Junior Researcher, Laboratory of Radiobiology and Ecotoxicology plants

Alla Alexandrovna Oudalova

National Research Nuclear University MEPhI

Email: oudalova@mail.ru
Head of the Department, doctor biol. sciences, Department "Ecology"

References

  1. Сарапульцев Б. И., Гераськин С. А. (1993) Генетические основы радиорезистентности и эволюция. М.: Энергоатомиздат.
  2. Нариманов А. А., Корыстов Ю. Н. (1997) Стимулирующее действие малых доз ионизирующего излучения на развитие растений. Радиационная биология. Радиоэкология. Т. 37 (3): С. 312-319.

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Copyright (c) 2015 Makarenko E.S., Oudalova A.A.

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