Specific features of root system morphology and mycorrhiza formation in scots pine seedlings from burned-out areas |
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Authors: | D V Veselkin S N Sannikov N S Sannikova |
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Institution: | (1) Department of Botany, The University of British Columbia, Vancouver, BC, V6T 1Z4, Canada;(2) Research Branch Laboratory, Ministry of Forestry, 4300 North Road, Victoria, BC, V8Z 5J3, Canada |
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Abstract: | Morphological parameters of the root system (the length of conducting roots and the number of absorbing roots) and the rate
of its mycorrhization have been studied in one-year Scots pine seedlings from burned-out areas of cowberry-herb-green moss
pine forest in the northern forest-steppe subzone of Western Siberia. The results show that the length of conducting roots
in such seedlings increases, whereas the rate and density of mycorrhiza formation in absorbing roots decrease, compared to
those in plants from unburned areas. The structure of underground organs in pine seedlings depends not only on fire intensity
but also on the type of substrate in the burned-out area. |
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