Growth dynamics and mycorrhizas of Norway spruce ( Picea abies) seedlings in relation to boron supply

Trees ◽  
2001 ◽  
Vol 15 (6) ◽  
pp. 319-326 ◽  
Author(s):  
Marjoriitta Möttönen ◽  
Tarja Lehto ◽  
Pedro J. Aphalo
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Growth Dynamics

scholarly journals Effects of pressure on the root systems of Norway spruce plants (Picea abies[L.] Karst.)

2012 ◽  
Vol 51 (No. 6) ◽  
pp. 268-275 ◽  
Author(s):  
R. Gebauer ◽  
M. Martinková
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Applied Pressure ◽  
Growth Dynamics ◽  
Soil Surface ◽  
Root Systems ◽  
Area Index ◽  
Root Area ◽  
Permanent Load ◽  
General Response

Roots are stressed quire often under natural conditions, e.g. when considering sloping terrain, layers of fluvial deposits, huge layers of melting snow, load of heavy forest machinery during logging and hauling operations, recreational activities of people, high density of deer or cattle, etc. We focused our experiments on Norway spruce (Picea abies[L.] Karst.) seedlings grown in containers with glass walls under the permanent load of 5.1 kPa during the whole growing season. The applied pressure affected roots both directly and indirectly due to the occurrence of hypoxia. Root growth ceased under such conditions. Growth dynamics and capability to occupy available soil also changed. For example, the total root area of experimental plants decreased to 52% but the root area index (RAI) was higher by 33% when compared to the control. It indicates that the pressure applied to the soil surface caused the development of only smaller root systems but more compacted into smaller volumes of soil. Mean longitudinal growth of stressed roots decreased by about 50% when compared to the control. Growth of experimental roots was also delayed, which is a typical general response to stress. However, a tendency to create dense and small root systems is in contradiction with the typical strategy of tree root systems.

Nitrogen distribution in young Norway spruce (Picea abies) trees as affected by pedospheric nitrogen supply

1997 ◽  
Vol 101 (4) ◽  
pp. 764-769 ◽  
Author(s):  
Heike Stoermer ◽  
Bettina Seith ◽  
Ulrike Hanemann ◽  
Eckhard George ◽  
Heinz Rennenberg
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Nitrogen Supply ◽  
Nitrogen Distribution

Characterization of stilbenoids from the stem bark of Norway spruce (Picea abies) as antifungal agents

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
J Gabaston ◽  
T Richard ◽  
B Biais ◽  
P Waffo-Teguo ◽  
MF Corio-Costet ◽  
...  
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Antifungal Agents ◽  
Stem Bark
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