About: Impact of soil pressure and compaction on tracheids in Norway spruce seedlings.

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About: Impact of soil pressure and compaction on tracheids in Norway spruce seedlings. Goto Sponge NotDistinct Permalink

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Description	We tested the effect of soil compaction on Norway spruce seedlings in terms of the size and theoretical volume flow rate of the tracheids. The results show that soil pressure limits growth in the diameter of the lumens of tracheids in all parts of seedlings studied. The tracheids of the roots with primary xylem had larger lumens than those of the roots and shoots with secondary xylem in both unloaded and loaded seedlings. This corresponds to the higher cumulative theoretical volume flow rate of the tracheids from roots with primary xylem than those from roots and shoots with secondary xylem. Although the volume flow rate of tracheids, according to the Hagen-Poiseuille law, was directly proportional to the quadratic power of the capillary diameter (tracheid lumen), the cumulative curve of the theoretical hydraulic volume flow rate was higher or relatively comparable in loaded seedlings. An explanation for these findings is that there were higher gradients of water potential values in roots and leaves i We tested the effect of soil compaction on Norway spruce seedlings in terms of the size and theoretical volume flow rate of the tracheids. The results show that soil pressure limits growth in the diameter of the lumens of tracheids in all parts of seedlings studied. The tracheids of the roots with primary xylem had larger lumens than those of the roots and shoots with secondary xylem in both unloaded and loaded seedlings. This corresponds to the higher cumulative theoretical volume flow rate of the tracheids from roots with primary xylem than those from roots and shoots with secondary xylem. Although the volume flow rate of tracheids, according to the Hagen-Poiseuille law, was directly proportional to the quadratic power of the capillary diameter (tracheid lumen), the cumulative curve of the theoretical hydraulic volume flow rate was higher or relatively comparable in loaded seedlings. An explanation for these findings is that there were higher gradients of water potential values in roots and leaves i (en)
Title	Impact of soil pressure and compaction on tracheids in Norway spruce seedlings. Impact of soil pressure and compaction on tracheids in Norway spruce seedlings. (en)
skos:prefLabel	Impact of soil pressure and compaction on tracheids in Norway spruce seedlings. Impact of soil pressure and compaction on tracheids in Norway spruce seedlings. (en)
skos:notation	RIV/62156489:43410/11:00168657!RIV11-MSM-43410___
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(7F09086), Z(MSM6215648902)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2011
http://linked.open...aciTvurceVysledku	Volařík, Daniel Gebauer, Roman Martinková, Milena
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Mendelova univerzita v Brně / Lesnická a dřevařská fakulta
http://linked.open...dnocenehoVysledku	203716
http://linked.open...ai/riv/idVysledku	RIV/62156489:43410/11:00168657
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	hydraulic conductivity; anatomy (en)
http://linked.open.../riv/klicoveSlovo	hydraulic conductivity anatomy
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[16E637BC8356]
http://linked.open...i/riv/nazevZdroje	New Forests
http://linked.open...in/vavai/riv/obor	GK
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Monitoring the vitality of forest ecosystems exposed to drought to assure sustainable forestry during climate change
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	41
http://linked.open...iv/tvurceVysledku	Gebauer, Roman Volařík, Daniel Martinková, Milena
http://linked.open...n/vavai/riv/zamer	Forest and Wood: the support of functionally integrated forest management and use of wood as a renewable raw material
issn	0169-4286
number of pages	14 (xsd:int)
http://localhost/t...ganizacniJednotka	43410

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