Báo cáo lâm nghiệp: " Effects of ectomycorrhizal inoculation and the type of substrate on mycorrhization, growth and nutrition of containerised Pinus pinea L seedlings produced in a commercial nursery" docx
Báo cáo lâm nghiệp: " Effects of ectomycorrhizal inoculation and the type of substrate on mycorrhization, growth and nutrition of containerised Pinus pinea L. seedlings produced in a commercial nursery" docx
... produced in a commercial nursery. 2. MATERIALS AND METHODS2.1. Plant material Pinus pinea L. seeds were collected from natural forests in the Montnegre and Montseny sierras in Catalonia (Spain). ... factors inoculation (A) and type of substrate (B), and interaction between them (AB) for different growth parameters of Pinus pinea seedlings. Significant values (P < 0.05) are marked in bold. Growth ... Castellano M .A. , Trappe J.M., Molina R., Inoculation of container-grown Douglas-fir seedlings with basidiospores of Rhizopogonvinicolor and R. colossus: effects of fertility and spore applicationrate,...
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Báo cáo lâm nghiệp: "Effects of drainage treatment and stand growth on changes in runoff components from a forested watershed" pps
... Horizontally-hatched areas generate runoff seasonally in late winter, spring and early summer. Areas enclosed with a dashed line act as source areas only during wet periods rich in precipitation. ... middle of the watershed.Experiment performance and data assessmentRunoff is divided into components. eir amount and ratios are calculated using many mathemati-cal and graphical-mathematical ... 1993. (in Czech)Drainage (1973): Principles and applications. Part II – eo-ries of drainage and watershed runoff. Wageningen, Interna-tional Institute of Land Reclamation and Improvement. H...
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Báo cáo lâm nghiệp: "Effects of nitrogen on the selection of food by Phyllobius arborator (Herbst)" pot
... the analysis of its level in the dry matter of leaves during the spring season. e amount of nitrogen increased nonlinearly with the increasing rate of ammonium nitrate into the substrate, ... Hydrometeorological Institute in Prague (ČHMÚ). Growth properties were evaluated according to the plant height and root collar diameter. e phenology of leaf fall was quantified on the level of a plant in ... Mean consumption of food by females of Phyllobius arborator after 6 days of feeding in a laboratory rearing (0.95 reliability intervals)Fig. 10. Mean consumption of food by males of Phyllobius...
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Báo cáo lâm nghiệp: "Effects of spruce, beech and mixed commercial stand on humus conditions of forest soils" pdf
... be-tween stands are given in Table 2.Chemical analysesValues of actual (in H2O) and exchangeable pH (in nKCl) were determined. Values of exchangeable pH were always lower than those of actual pH. ... ex-changeable and actual reactions of soil (Figs. 3 and 4) decreased from L to H in all stands. e lowest values in forest floor (4.0 and 3.4) and in the organo-mineral horizon A h (3.7 and ... end of the growing season, in autumn, after the leaf fall (Fagus sylvatica) in 2004–2006. Particular samples were taken by a standard method using a metal frame of a known area (0.1 m2). In...
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Báo cáo lâm nghiệp: " Effects of site preparation with micro-basins on Pinus halepensis Mill. afforestations in a semiarid ombroclimate" potx
... annual and the seasonal rainfall and the annual trunk growth, and the only correlation shown is that of the rainfall values in the springseason, there is no correlation between the growth of the ... the rings and the rainfall in any other season or the annual total. Figure 6shows the relationship between these two variables; springrainfall and ring growth on that particular year, with the ... ring growth correlates significantlywith rainfall. Therefore, the same amount of growth occursboth with a small and with a big rainfall; in the wide range of spring rainfall of the latest years...
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Báo cáo lâm nghiệp: " Effects of intensive versus no management strategies during an outbreak of the bark beetle Ips typographus (L.) (Col.: Curculionidae, Scolytinae) in the Tatra Mts. in Poland and Slovakia" ppsx
... pest control. The main cause of this collapse was probably the effect of cold and rainy weather on trees and bark beetles, as well as the increaseVariable management and bark beetle outbreak 59(34.7 ... range in the Carpathian arch. They are located along the border betweenSlovakia (75% of mountain land area) and Poland (25% of area). The entire Tatra Mts. are protected areas and comprisetwo National ... portion. Outbreak-related tree mortality affected Norwayspruce stands on both sides of the national border. The varyinglegal regulations governing national park reserves in Slovakia and Poland...
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Báo cáo lâm nghiệp: "Effects of artificial damage on the branching pattern of Nothofagus dombeyi (Nothofagaceae)" ppsx
... Colin F., Leborgne G., Artificial defoliation, decapitation of the terminal bud, and removal of the apical tip of the shoot in ses-sile oak seedlings and consequences on subsequent growth, Can. ... black filled and parent shoots are grey filled): t.1: clipping of the apex, t.2: clipping of distal buds and leaves,t.3: clipping of distal leaves, t.4: clipping of distal offspring shoot. A ... from axillary buds of the parent shoots were at the peak of their length growth. At that time, one of the following treat-ments was applied to the most distal offspring shoot of each labelledparent...
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Báo cáo lâm nghiệp: "Effects of light intensity on the growth and energy balance of photosystem II electron transport in Quercus alba " potx
... weightratio (LWRr) were calculated for each seedling. Based on specific leafarea (SLA; cm2 g–1) and leaf weight measured for each seedling, totalleaf area (LA; cm2) was calculated. Leaf area ... using one-way analysis of variance.Similarly, differences in RCD and HT among light levels were ana-lyzed separately for each measuring date using one-way analysis of variance followed by Bonferroni’s ... haverevealed a lack of understanding of ecological and physiolog-ical processes involved in oak regeneration.Light is a critical factor affecting early survival and growth of tree seedlings under a forest...
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Báo cáo lâm nghiệp:" Effects of competing vegetation on juvenile white spruce (Picea glauca (Moench) Voss) growth in Alaska" pdf
... regression variable within the standard ANOVA [25].Including year as a continuous regression variable within the ANOVA allowed us to test for main effects (treatment for BonanzaCreek and treatment ... wegenerated a list of 10 potential independent variables for further anal-yses in linear and nonlinear equations. Equations were developed foreach unit, with saplings from all treatments and replications ... 4). Saplings in the site preparation treatment were taller and larger in diameter then those in the untreated plots. AtDavis and Bulldog, the release treatment produced saplingsthat were larger...
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Báo cáo lâm nghiệp:"Effects of field vegetation control on pine weevil (Hylobius abietis) damage to newly planted Norway spruce seedlings" ppt
... besides the establishment of field vegetation, include the accumulation of litter, and compaction of the soil surface.Örlander and Nilsson [11] concluded that it is unclear howvegetation near the ... when there was a long period betweenscarification and planting. We conclude that vegetation in -growth was the main factor decreasing the effect of scarification on weevil damage. Hylobius abietis ... field vegetation and mosseswere calculated for all treatments and experiments. The effect of veg-etation cover on pine weevil feeding was then analysed. The analysiswas done separately for controls...
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