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Báo cáo lâm nghiệp: "Effect of climatic factors on the dynamics of radial increments of Norway spruce, European beech and sessile oak" potx

Báo cáo lâm nghiệp:

Báo cáo lâm nghiệp: "Effect of climatic factors on the dynamics of radial increments of Norway spruce, European beech and sessile oak" potx

... the effect of climatic factors on radial increments of treese effect of climatic factors on radial increments of trees was studied in detail by means of corre-lation analysis on standardized ... correlation models of the effect of climatic factors on radial increments of treesAfter performing the detailed analysis of pair cor-relation coefficients sets of monthly precipitation amounts and ... increment of forests in Europe is a conse-quence of higher precipitation. In the same study M et al. (2008) did not clearly confirm the Effect of climatic factors on the dynamics of radial increments...
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Báo cáo lâm nghiệp: "Effect of stand segmentation on growth and development of Norway spruce stands" pps

... skidding track, the only one of all of them, is situated perpendicularly to the direction of prevailing winds, in contradiction to plot 3 where the skidding track follows the direction of prevailing ... 323–329confirmed under conditions of this investigated locality.CONCLUSIONBased on the analysis of a part of results from the international IUFRO trial CZ 14 Machov investigat-ing the effect of ... (present) width of tracks was determined by means of surveyed positions of trees (and their rows) and reconstructed axis (centre) of the track in plot 3. e only exception was plot 4, where the track...
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Báo cáo lâm nghiệp:

Báo cáo lâm nghiệp: "Effect of gibberellic acid and ethephon on the germination of European beech dormant and chilled beechnuts" pptx

... RepublicABSTRACT: The effect of ethephon (80, 100 and 120 mg·l–1) and gibberellic acid (GA3) (40, 300 and 1,000 mg·l–1) on the germination capacity (GC) and mean germination time (MGT) of European beech ... of the present paper was to deter-mine the effect of gibberellic acid and ethephon on overcoming beechnut dormancy and stimulation of beechnut germination.MATERIALS AND METHODSSeedsree beechnut ... apparent effect of different concen-trations of ethephon or GA3 on germination ca-pacity. e only exception was the application of 1,000 mg·l–1 GA3 to dormant seeds that reduced the MGT to...
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Báo cáo lâm nghiệp: "Effect of initial height of seedlings on the growth of planting material of Norway spruce (Picea abies [L.] Karst.) in mountain conditions" ppsx

... 1995).They also confirm an assumption that in the process of adaptation to adverse environmental conditions at higher altitudes spruce populations gain their resistance to the account of growth ... to the develop-ment of seedlings of standard and large dimensions.MATERIAL AND METHODSSeeds used for the cultivation of planting mate-rial originated from the spruce forest vegetation zone ... model plantation in the Krkonoše Mts. agree with the finding that the slow growth of a part of the population of spruce seedlings is the most marked in the first years after sowing and later it...
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Báo cáo lâm nghiệp: "Effect of plant age, temperature and rainfall on Lepidoptera insect pests collected with light traps in a Eucalyptus grandis plantation in Brazil" docx

... temperature and rainfall during the five years of study withPearson correlation based on a significance level of 5% with the t test. The effect of age of the plantation on monthly mean annual number of ... Gerais,Brazil where they were counted and identified by comparing them toindividuals of the Museum of Entomology of the UFV and of othercentres of insect identification in Brazil.Frequency ... plantation has about 40% of the land covered by nativevegetation. The higher number of collections of individuals of majorimportant pest species during periods of cooler temperatures and lower...
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Báo cáo lâm nghiệp: "Effect of defoliation by Thaumetopoea pityocampa (Den. & Schiff.) (Lepidoptera: Thaumetopoeidae) on annual diameter increment of Pinus brutia Ten. in Turkey" ppt

... University of Thessalonici, Sc.Ann. Depart. For. Nat. Environ. 28 (1985) 303–370.[23] Markalas S., Problems on the control of the pine processionarymoth, Proceeding of the symposium Protection of ... diameter increments in the pine trees are considerably affected by the defoliation of the larvae, P < 0.05. The results of Tukey’s mean separation test for the diameterincrement of the both control and defoliated ... of the pine tree measured at the end of the vegetation period of each year and D1 is the diameter of the tree meas-ured at the beginning of vegetation period of each year.PDADI = (ADIc–ADIi)/ADIc...
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Báo cáo lâm nghiệp: "Effect of shelter tubes on establishment and growth of Juniperus thurifera L. (Cupressaceae) seedlings in Mediterranean semi-arid environment" pot

... between the T and the WT at the end of the trial (Oct. 2002), that was greater in the WT. From the beginning of the plantation, the N showedsignificant differences between the T and the WT. ... extremeecological conditions, which, together with the advanced meth-ods that are being obtained for its reproduction in the nursery,widens the scene for the conservation, management and resto-ration of the ... confidencelevel of 95%. In the case of violation of the Levene test of varianceequality, the non parametric test of Kruskal-Wallis was used [28].Depending on the analysis made, the measurement comparison...
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Báo cáo lâm nghiệp: "Effect of contrasting water supply on the diameter growth of Norway spruce and aspen in mixed stands: a case study from the southern Russian taiga" pot

... dynamics showed the transformation of secondary stand with domination of aspens into the stand with dominant spruce and significantadmixture of alder in wet part of the experimental plot.3.5. Comparison of ... certain different proportions and with admixture of some other deciduous species are typical in the region of the southern European taiga. The area of the southern European taiga is characterised ... the period of 1999–2002. These results indicate the transformation processes of secondary aspen-spruce stands of the Southern European Taiga into a mixed spruce-aspen-birch stands. The most intensive...
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Báo cáo lâm nghiệp:"Effect of tube shelters on the growth of young Turkish pines (Pinus brutia Ten., Pinaceae)" pptx

... unit GU 2 and so on (Fig. 2A). The successive tiers of branches can easily distinguish the growthunits. They correspond to the forester notion of “node” [13, 24, 28] and to the notion of “morphogenetical” ... needles all the way up the tube and observe whether their width and the number of stomatachange. In this way, the number of needles could allow us tohave an idea of the organogenesis and the leaf ... to the position of the growth unitin the tube. Firstly, the 1997 growth units inside the tube don’tshow a significative difference on their length (Fig. 8C) like the 1997 growth units of the...
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Báo cáo lâm nghiệp: "Effect of storage conditions on post planting water status and performance of Pinus radiata D. Don stock-types" doc

... mentioned above. The rate of physiological recovery is dependent on the severity of drought[14] but also on the conditions and duration of preplanting stor-age; as the storage period is lengthened ... the expres-sion of osmotic adjustment [33]. Coutts [9] and Sucoff et al.[39] reported that the root system in conifers is prone to desic-cation, essentially, under the desiccating conditions ... bags, the plants’ water status remains constant and no alterations occurs[9, 12]. The likelihood of recovery under the different parametersanalysed after rewatering depends on the conditions and...
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