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Chemical thinning in blue spruce (Picea pungens Engelm.) stands and its effects on cambioxylophagous fauna
arboricides chemical thinning Ips amitinus Kruš né hory Mts Picea pungens Scolytidae
2015/3/19
Chemical thinning was applied in blue spruce (Picea pungens Engelm.) stands by the application of Roundup Klasik and Garlon 4 EC. The thinning efficacy of Garlon 4 EC was negligible, while that of Rou...
Shoot organogenesis induction from genetically verified individuals of endangered bog pine (Pinus uncinata subsp. uliginosa)
DNA extraction in vitro regeneration leaves plastid DNA seedling shoot apices
2015/3/19
The objective of this work was to apply selected genetic markers to verify the genetic purity of bog pine (Pinus uncinata subsp. uliginosa) individuals from the Borkovicka blata population in order to...
Coarse woody debris carbon stocks in natural spruce forests of Babia hora
Babia hora nature reserve deadwood decay elevation natural forest wood density
2015/3/19
Although coarse woody debris (CWD) represents one of the major carbon pools in natural forest ecosystems, little information is available about its CWD carbon stocks. This study demonstrates the impor...
Structure of coarse woody debris in Lange-Leitn Natural Forest Reserve, Austria
forest association habitat fungi oak broadleaved forest
2015/3/12
The amount, variability and quality of coarse woody debris (CWD) in an oak-dominated natural forest reserve in Austria were studied in 2006. The average volume of CWD (snags and logs) was 107.3 m3/ha,...
Can 13C stable isotope record of Norway spruce tree rings display the effect of environmental conditions?
Δ13C air pollution tree physiology Bohemian Forest Mts. soil pH aluminium soil acidification
2015/3/12
The Bohemian Forest Mts. (Šumava) were exposed to heavy atmospheric pollution in the last century. A possible negative effect of atmospheric pollution on tree physiology has been studied using th...
Effects of varying doses of Frisol on European ash (Fraxinus excelsior L.) planted on spoil banks
Frisol forte Frisol active Silvamix forte
2015/3/6
Frisol forte (FR F) and Frisol active (FR A) are slow-acting organic fertilisers recommended for reclamation and revitalisation of undeveloped soils and degraded areas. Tentative results of experiment...
First evaluation of growth parameters in clonal test with wild cherry
linear mixed models spatial analysis forest tree breeding
2015/3/6
A 6-year-old clonal trial with 13 clones of wild cherry (Prunus avium L.) was evaluated during the summer of 2004 at 6 different sites in the Czech Republic. Observed traits were the stem height, stem...
The root-plant ratio changes in the first growing periods of wild cherry (Prunus avium L.) plantations
regeneration root system growth performance of young plantation
2015/3/6
The root-plant ratio is one of the important parameters for planting stock quality. We suppose that the ratio is one of the driving variables for the growth performance of new plantation in the forest...
Growth reaction of young wild cherry (Prunus aviumL.) trees to pruning
pruning production height
2015/3/5
A large crown is one of the most important prerequisites for the good growth of a tree and therefore the crown could be called an engine of increment. The care for a large crown brings a decrease in t...
Infection of wintering pupae of horse-chestnut leafminer Cameraria ohridella Deschka et Dimić. by Verticillium lecanii (Zimmerman)Viégas
Cameraria ohridella horse-chestnut leafminer horse-chestnut
2015/3/3
The population dynamics of the horse-chestnut leafminer Cameraria ohridella Deschka et Dimić. was
investigated in 1997–2000. The mortality of wintering pupae and the rate of fungal infections w...
Effect of Mg fertilization on yellowing disease of Norway spruce at higher elevations of the Šumava Mts., Czech Republic
Mg deficiency defoliation long-term effect
2015/3/3
Norway spruce yellowing and defoliation caused by Mg deficiency was frequently recorded on many sites
of the Šumava Mts. (Bohemian Forest Mts.) since 1980’s. A forest experiment aimed at invest...
Morphological and physiological parameters of beech leaves (Fagus sylvatica L.) in research demonstration object Poľana
beech (Fagus sylvatica L.) morphological characteristics assimilatory apparatus tree crown levels chlorophyll fluorescence
2015/2/6
Observations of the beech assimilatory apparatus in different levels of a model tree were realised from 1993 to 1999 in a research demonstration plot situated in Poľana. Different observations of...
A development cycle of the forest with fir (Abies alba Mill.) and beech (Fagus sylvatica L.) in its species composition in the Świętokrzyski National Park
forest development cycle periods of decline recovery and transformation SINUS System Abies alba Fagus sylvatica Ś wię tokrzyski National Park
2015/2/2
The objectives of this study are to determine the progress of the development cycle of the forest taking into account untypical development periods caused by fir decline and recovery, and to compare t...
Variation of the tree ring micro-hardness demonstrated on spruce wood
wood tree ring micro-hardness penetration strength
2015/2/2
Micro-hardness was used for the study of wood structure (Norway spruce) in the line perpendicular to tree rings (radial surface). The steel indentor 0.25 mm in diameter with flat head was used for thi...
Gradients of the content of photosynthetic pigments and radiation as manifestations of the health condition of Norway spruce (Picea abies [L.] Karst.)
chlorophyll carotenoids radiation transmittance health condition Picea abies (L.) Karst.
2015/2/2
The paper deals with the health condition of sample trees of Norway spruce (Picea abies [L.] Karst.) on the basis of the distribution and quantity of chlorophyll a + b and carotenoids with respect to ...