Autor(i)/Author(s): Viera Paganová, Marek Hus, Helena Lichtnerová
Názov/Title: Effect of Substrate Salinity on Growth of Juvenile Plants Pyrus pyraster (L.) Burgsd
Zdrojový dokument/Source: Plants in Urban Areas and Landscape :: PUAL
Typ dokumentu/Document Type: Scientific paper
ISSN: 2585-9811
ISBN: 978-80-552-2164-9
DOI: https://doi.org/10.15414/PUAL/2020.66-73
Vydavateľ/Publisher: Slovak University of Agriculture in Nitra
Rok, strany/PY, pages: 2020, 66-73
Publikované online/Published on-line: 2020-04-17
Jazyk/Language: eng
Abstract: The responses of Pyrus pyraster L. Burgsd. to salinity stress in the juvenile stage of growth were studied, particularly the influence of different
salt concentrations on seedlings growth, content of assimilation pigments and sodium ion distribution. Two years old seedlings were subjected to the salt treatment by addition of 60 and 120 mM NaCl solution
to the substrate for 92 days. Control plants were saturated by water. The WinRhizo REG 2009 system was used for the analytical processing of the plant root system. The stem increment, leaf area, content of
assimilatory pigments and allocation of the dry matter in the plant organs were also determined. The obtained data documented significant reduction in dry weight of the leaves (-36%) stems (-32%) and roots
(-22%) in the treatment with higher concentration of NaCl (120 mM). Under low salinity treatment (60 mM NaCl) Pyrus pyraster invested more dry matter to roots and maintained a balanced total dry weight
per plant. In the response to salt treatments seedlings created coarser roots, maintained higher water content in the leaves and roots and changed ion balance in the plant organs.
Keywords: Pyrus pyraster, adaptability, salt stress, seedlings, roots, woody plants
Práva/Rights: Creative Commons Attribution 4.0 Licence
Toto dielo je publikované pod/This work is licensed under a Creative Commons Attribution 4.0 International License.
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