scholarly journals Concentrations of nutritional and trace elements in needles of Norway spruce (Picea abies [L.] Karst.) as functions of the needle age class

1995 ◽  
Vol 168-169 (1) ◽  
pp. 305-312 ◽  
Author(s):  
A. Wyttenbach ◽  
P. Schleppi ◽  
L. Tobler ◽  
S. Bajo ◽  
J. Bucher
Keyword(s):  
Trace Elements ◽  
Picea Abies ◽  
Norway Spruce ◽  
Needle Age ◽  
Age Class

scholarly journals Concentrations of nutritional and trace elements in needles of Norway spruce (Picea abies [L.] Karst.) as functions of the needle age class

1995 ◽  
pp. 305-312
Author(s):  
A. Wyttenbach ◽  
P. Schleppi ◽  
L. Tobler ◽  
S. Bajo ◽  
J. Bucher
Keyword(s):  
Trace Elements ◽  
Picea Abies ◽  
Norway Spruce ◽  
Needle Age ◽  
Age Class

The concentrations of Fe, Zn and Co in successive needle age classes of Norway spruce [Picea abies (L.) Karst.]

Trees ◽  
2000 ◽  
Vol 14 (4) ◽  
pp. 198-205 ◽  
Author(s):  
A. Wyttenbach ◽  
L. Tobler
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Age Classes ◽  
Needle Age

scholarly journals The concentration of Ca, Sr, Ba and Mn in successive needle age classes of Norway spruce [Picea abies (L.) Karst.]

Trees ◽  
1995 ◽  
Vol 10 (1) ◽  
Author(s):  
Armin Wyttenbach ◽  
Sixto Bajo ◽  
J�rg Bucher ◽  
Verena Furrer ◽  
Patrick Schleppi ◽  
...  
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Age Classes ◽  
Needle Age

Arsenic concentrations in successive needle age classes of Norway spruce ( Picea abies [L.] Karst.)

1996 ◽  
Vol 354 (5-6) ◽  
pp. 668-671 ◽  
Author(s):  
A. Wyttenbach ◽  
S. Bajo ◽  
L. Tobler
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Age Classes ◽  
Needle Age

scholarly journals Eradication of endophytes from needles, their inoculation with Lophodermium piceae and persistence of this fungus in needles of Norway spruce

2021 ◽  
Vol 20 (8) ◽  
pp. 981-992
Author(s):  
Michael M. Müller ◽  
Leena Hamberg
Keyword(s):  
Heat Treatment ◽  
Picea Abies ◽  
Norway Spruce ◽  
Insect Herbivory ◽  
Host Tree ◽  
Distribution Area ◽  
Needle Age ◽  
New Approach ◽  
Spruce Needles

AbstractLophodermium piceae is the most common endophyte of Norway spruce (Picea abies) needles, and it probably occurs in the total distribution area of Norway spruce. Its significance to the host tree is still largely unknown mainly because no methodology is known for generating endophyte-free saplings nor for inoculation of intact needles with this fungus. We report here how a daily heat treatment at 40 °C for 8 h eradicates endophytes of Norway spruce needles within a few days without causing visible harm to the plants. We compared various methods for inoculation of endophyte-free saplings. In order to obtain effective inocula, we investigated what factors activate dormant L. piceae infections in the needle tissue resulting in ascomata formation. Best inoculation success was achieved by suspending naturally shed, highly infected needles above the saplings. Infection frequencies of up to 70% of needles were achieved with repeated inoculations in the course of 3 years. Once established in needles, individual infections by L. piceae can persist for at least 5 years. Individual infections remain small in young needles, but at a needle age of 6 years, they start to grow and spread resulting in presence all over the needle from base to tip at a needle age of 7 years, but still without causing visible symptoms on the needles. The presented methodology for generating both endophyte-free and endophyte-infected saplings of Norway spruce provides a new approach for testing the significance of infections by L. piceae to insect herbivory and diseases of Norway spruce needles.

Spatial distribution of major, trace and ultra trace elements in three Norway spruce (Picea abies) stands in boreal forests, Forsmark, Sweden

Geoderma ◽  
2010 ◽  
Vol 159 (3-4) ◽  
pp. 252-261 ◽  
Author(s):  
Christian B. Brun ◽  
Pasi Peltola ◽  
Mats E. Åström ◽  
Maj-Britt Johansson
Keyword(s):  
Trace Elements ◽  
Spatial Distribution ◽  
Picea Abies ◽  
Norway Spruce ◽  
Boreal Forests ◽  
Ultra Trace

Mycorrhiza formation on Norway spruce (Picea abies) roots affects the pathway of anaplerotic CO2 fixation

1996 ◽  
Vol 96 (4) ◽  
pp. 699-705 ◽  
Author(s):  
Astrid Wingler ◽  
Thomas Wallenda ◽  
Rudiger Hampp
Keyword(s):  
Picea Abies ◽  
Norway Spruce ◽  
Co2 Fixation ◽  
Mycorrhiza Formation

Storage protein accumulation during zygotic and somatic embryo development in Picea abies (Norway spruce)

1990 ◽  
Vol 80 (3) ◽  
pp. 441-445 ◽  
Author(s):  
Inger Hakman ◽  
Priska Stahel ◽  
Peter Engstrom ◽  
Tage Eriksson
Keyword(s):  
Picea Abies ◽  
Somatic Embryo ◽  
Norway Spruce ◽  
Embryo Development ◽  
Storage Protein ◽  
Protein Accumulation ◽  
Somatic Embryo Development
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