Báo cáo lâm nghiệp: "Arginine and the shade tolerance of white spruce saplings entering winter dormancy" ppsx

... 82–88 in Růžová hora the average decrease was 0.70 g, in Sněžka 0.81 g (Fig. 5). Changes in the parameters within the years 2004–2006 Data on mycorrhizal status of roots obtained from spring ... approximately in the same distance (about 1 m) from the stem of five selected trees. e cylinder of the soil probe used for this purpose had the inner diameter of...

Ngày tải lên: 07/08/2014, 03:22

... 526/03/H036. Multivariate statistical approach to comparison of the nutrient status of Norway spruce (Picea abies [L.] Karst.) and top-soil properties in differently managed forest stands P. S 1 , ... 1992). Norway spruce (Picea abies [L.] Karst.) is the main edificator and stand-forming tree species in mountain spruces sta...

Ngày tải lên: 07/08/2014, 03:22

... activity in the past can be recorded from the fluctuation of the carbon stable isotope ratio in tree rings and assigned to the exact year or time period (G, C 1994). Norway spruce (Picea ... was performed using the 13 C stable isotope record from three trees only. e main objective of our study was to enlarge the data set and to validate the...

Ngày tải lên: 07/08/2014, 03:22

... possibilities of National Forest Inventory for the evaluation end, there comes the Inventory of Game Damage in the Smaller Territo- rial Units. CONCLUSION Results from National Forests Inventory ... during repeated investigation in comparison with the rest of the investigated territory. In the course of five years, in relation to the original po...

Ngày tải lên: 07/08/2014, 03:22

... dynamics of beech, mixed (fi r beech and spruce beech stands) and spruce stands, relict pine woods and stands in the ecotone of the upper forest limit in diff erent site, stand, air-pollution and ... ability in higher elevations and tolerates conditions in the ecotone of the up- per forest limit, although its optimal growth and production is reached...

Ngày tải lên: 07/08/2014, 10:21

... concentrations and fl uxes in bulk precipitation and throughfall in the mountain and highland spruce stands in the Czech Republic I. D, L. M, J. K, I. M Institute of Forest ... radiation and to hold the funnels approximately 1 m above the ground.  ere were 7 collectors randomly dis- tributed at the mountain spruce stand a...

Ngày tải lên: 07/08/2014, 10:21

... (without the ending and often extended hairs), metatarsal length (LTp) from the calcaneal joint to the tip of the hoof, ear length (LA) from the root of the ear to the tip, and height at the withers ... as the distance from the tip of the fore leg to the highest point at the withers. Weight was deter- mined according to circumstances: (i) the whole un...

Ngày tải lên: 07/08/2014, 10:21

... 349 JOURNAL OF FOREST SCIENCE, 57, 2011 (8): 349–358 Survival and growth of outplanted seedlings of selected tree species on the High Tatra Mts. windthrow area after the first growing season I. R 1 , ... effect of planting time and application of the fungal product Ectovit on growth characteristics of seedlings at planting time and...

Ngày tải lên: 07/08/2014, 10:21

... METHODS Four-year-old white spruce saplings were grown from seed obtained from a tree breeding seed bank at the Petawawa Forest Experiment Station, Chalk Arginine and the shade tolerance of white spruce saplings ... Size parameters and the responses of free amino acid N and guanidino compounds in the soluble N pool of stem and buds of four-year-old...

Ngày tải lên: 07/08/2014, 10:21

... content in the biomass on the thinned plot represented 8 9–9 2% of the values calculated for the control plot without thinning. On the basis of presented research, which was done within the blue spruce ... years, the investigated substitute blue spruce stand accumulated: N – 336 kg, P – 28 kg, K – 138 kg, Ca – 159 kg, Mg – 28 kg per...

Ngày tải lên: 07/08/2014, 10:21

... granite. Supported by the Ministry of Agriculture of the Czech Republic, Project No. MZe 0002070201. Growth and health state of silver fir (Abies alba Mill.) in the ridge area of the Jizerské hory Mts. V. ... dynamics of the height growth of the silver fir experimental plantings was evaluated on the basis of the results of the measu...

Ngày tải lên: 07/08/2014, 10:22

... horizons rather by the reduction of the finest root length than by the reduction of root tips density. CONCLUSIONS The research of fine roots in the intermediate stage of a beech virgin forest ... cells with the dominant function of water and minerals supply. e ratio between the fine root length and the number of root tips is an indicator...

Ngày tải lên: 07/08/2014, 10:22

... correlation between the aboveground parameters and the depth of root plates in spruce trees growing both in waterlogged and in well-drained sites. According to our results, it seems that the roots of ... 353 JOURNAL OF FOREST SCIENCE, 56, 2010 (8): 353–360 Relationships between the parameters of aboveground parts and the parameters of...

Ngày tải lên: 07/08/2014, 10:22

... Sciences, 2005 DOI: 10.1051/forest:2004085 Original article Sicily represents the Italian reservoir of chloroplast DNA diversity of Quercus ilex L. (Fagaceae) Silvia FINESCHI a *, Salvatore COZZOLINO b , ... occurs only in Sicily and particularly in the south-eastern part of the island, close to the Etna region. Haplotype 6 characterises the south-weste...

Ngày tải lên: 08/08/2014, 00:21

... were higher in winter (values of 0.55-0.68) than at the time of highest pho- Seasonal variations in photosynthetic activity of spruces as determined by chlorophyll fluorescence H.K. ... Lichtenthaler and Rinderle, 1988) permits a fast screen- ing of seasonal and short-term variations tosynthetic activity, e.g., in springtime (values of...

Ngày tải lên: 09/08/2014, 04:20