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Báo cáo lâm nghiệp: "The effects of lifting on mobilisation and new assimilation of C and N during regrowth of transplanted Corsican pine seedlings A dual 13C and 15N labelling approach" docx

Báo cáo lâm nghiệp:

Báo cáo lâm nghiệp: "The effects of lifting on mobilisation and new assimilation of C and N during regrowth of transplanted Corsican pine seedlings. A dual 13C and 15N labelling approach" docx

... throughdecreased stomatal conductance and increased allocation of N. As a consequence, C assimilation, carbohydrate concentration, and N availability for new growing components were decreasedin lifted ... both A and g (Figs. 2A and 2C) . 3.2. Changes in total C and N after transplanting Lifting caused significant changes in C concentration nei-ther in seedlings nor in their components (results not ... in non-structuralcarbohydrate concentration, also altered carbohydrate status of Corsican pine seedlings. Starch concentration increased stronglyin needles the first days after transplanting....
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Báo cáo lâm nghiệp: "The effects of flooding and Phytophthora alni infection on black alder" pps

... post-hoc test for unequal n (Spjtvoll-Stoline test).RESULTS AND DISCUSSIONConfirmation of flooding and P. alni infection effects on black aldere analysis of covariance confirmed that the both factors ... (flooding and P. alni infection) and their combination significantly influenced (P < 0.05) the characteristics of alder plants that were evaluated in this study. e assumptions of normality and ... subsp. alni in the flooding and non-flooding condition was Table 1. e effect of long-term flooding and Phytophthora alni infection on the development of black alder saplings Treatment per valid N Length...
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Báo cáo lâm nghiệp: " The effects of cutting regimes on natural regeneration in submountain beech forests: species diversity and abundance" pdf

... stand density, LAI) on the amount of beech seedlings (principal woody plant) in natural regeneration. A significant influ-ence of two principal climatic variables (moisture and light conditions) ... species composition on plot M is the same as on C and L (Table 2).Calculating Pearson correlation coefficients, we have identified a significant influence of specified stand variables (fructifying ... Scienti c Grant Agency VEGA of the Ministry of Education of the Slovak Republic and Slovak Academy of Sciences, Project No. 2/7185/27, and by the Slovak Research and Development Agency, Contract...
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Báo cáo lâm nghiệp: "The effects of thinning on the structural diversity of coppice forests" doc

... ModerateHeavy a b c a a a a a a a a a aabb a a a TDd3Light ModerateHeavy a bb a a a a a a a a a a a a a a a FHD Light ModerateHeavy a a a a a a a a a a a a a a a aabbTreatments with the same letter indicate non significant differences for the ... importance of includingindividual tree features, microstructure and vertical and hori-zontal stand complexity in the analysis in order to correctlyinterpret structural changes and the effect of ... use of fire-wood and charcoal as energy resources has reduced signifi-cantly and the lack of sustainable silvicultural treatments and thinnings has lead to dense coppice forests. In such conditionsthe...
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Báo cáo lâm nghiệp: "The effects of elevated CO 2 and water stress on whole plant CO 2 exchange, carbon allocation and osmoregulation in oak seedlings" docx

... Clerc and F Willm, INRA Nancy), in 13 C analyses (H Casabi-anca, CNRS Vernaison), and in mineral analy-ses (M Bitsch and C Brechet, INRA Nancy) isgratefully acknowledged.REFERENCESArp ... that increasing atmospheric CO2concentration favours osmotic adjustmentthrough enhanced carbon supply to the dif-ferent plant components and increasedorganic solute concentrations. ... At the individual plantOriginal articleThe effects of elevated CO2 and water stress on whole plant CO2 exchange, carbon allocation and osmoregulation in oak seedlings P...
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Báo cáo lâm nghiệp: "The effects of stock type and radicle pruning on blue oak morphology and field performance" docx

... Research and Extension Center.Finally, a special thanks to J Tecklin, a UC StaffResearch Associate, who helped plant and main-tain the seedlings and collected and entered ... planting and maintenanceThe field planting site was located at the SierraFoothill Research and Extension Center (SFREC),30 km northeast of Marysville, at an elevation ... trimming the radicles of ger-minated acorns on seedling morphology and field performance.MATERIALS AND METHODSAcorn collection and plantingAcorns for this study were collected...
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Báo cáo lâm nghiệp: "The effects of transplanting stress on photosynthesis, stomatal conductance and leaf water potential in Cedrus atlantica Manetti seedlings: role of root regeneration" pdf

... 1975).Physiological processes, such as C0 2 assimilation and translocation (Stupendick and Shepherd, 1980), stomatal conduc-tance and plant water status (Sands,1984; Kaushal et al., ... changes in Aweremainly due to an alteration of mesophyllphotosynthetic capacity.The effects of transplanting stress on photosynthesis,stomatal conductance and leaf water ... seedlings, a marked and parallel decline in both C0 2 assimila-tion and stomatal conductance occurredfrom day 0 to day 9 after transplanting(Fig. 1a and b); afterwards...
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Báo cáo lâm nghiệp: "The effects of summer exposure to ozone on the frost hardiness after the vegetation period of Norway and Sitka spruce seedlings" doc

... USDA ForestService and the US Environmental ProtectionAgency, as part of the National Acid Precipita-tion Assessment Program.ReferencesBarnes J.D. & Davison A. W. ... substitution of the measuredconductivity values, the rate of change inconductivity or normalised leakage rate (k) wascalculated. A comparison of k values withvisible damage ... fumigation system forinvestigating interactions between air pollution and cold stress on plants. Environ. Pollut. 43,15-28Lucas P.W., Cottam D .A. , Sheppard L.J. &Francis...
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Báo cáo lâm nghiệp: "Interactive effects of irradiance and water availability on the photosynthetic performance of Picea sitchensis seedlings: implications for seedling establishment under different management practices" ppt

... (Piceasitchensis) seedlings under exposed and shaded conditions was evaluated to provide a physiological understanding of the factors controllingseedling performance under conventional and continuous ... whorl one of eachplant using a CIRAS 1 infra red gas analyser and a Parkinson conifercurvette with climate control (Model PLCc; PP Systems, Hitchin,Herts, England). Water and CO2 exchange rates ... Diurnal gas exchange, chlorophyll fluorescence, shoot water potential and hydraulic conductance determinationsDark respiration rates, A max and leaf water status at a saturating irra-diance...
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Báo cáo lâm nghiệp: "The results of manipulated experiments with inoculation of Ips typographus (L., 1758) to spruce trees under various levels" potx

... individuals were tested on motion and than released to rearing cages. ey mated and established new generation. e breeding was con-ducted in natural temperature and light conditions to have adults ... with compound of biotic and abiotic stressors (air pollu-tion, degradation and compaction of soil, nutrients exhaustion, increased activity of pests and patho-gens) resulted to permanent forest ... former management practices rather than by natu-ral factors (E 1986). As a result of social and economy development, there appeared vast re-gions of non-native monocultures, suffering from...
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