Báo cáo lâm nghiệp:" Photosynthetic acclimation of beech seedlings to full sunlight following a major windstorm event in France" pptx

... photosynthetic acclimation of shade-grown beech (Fagus sylvatica L.) seedlings was studied at a northeastern France location near Nancy in the Lorraine Region after a major windstorm event in December ... rapid acclimation of NA values approaching those for full light controls. An increase in photo- synthetic rates for transferred seedlings began 8 days after...

Ngày tải lên: 08/08/2014, 01:21

... 1 st –5 th age class (according to Kraft) in each stand. e data on the degree of stem necrotising were evaluated by means of the index of the stem necrotising (I SN ), separately for each age class ... 2003. State of necrotic disease of beech in the growth phase of natural seeding in Slovakia. Ekológia (Bratislava), 22: 42–50. MIHÁL I., CICÁK A. , 2005. State of...

Ngày tải lên: 07/08/2014, 04:20

... estimators of the Fraction of Absorbed Photosynthetically Active Radiation (FAPAR), an indicator of the state and photosynthetic activity of vegetation. Gob- ron et al. [37] have shown that the ... similar characteristics, and the Canadian Radarsat-1 satellite, operating in the same band with HH polarisation at 10 to 100 m, are the existing space systems able to procure comple...

Ngày tải lên: 07/08/2014, 16:20

... experimentally, Ecology 73 (1992) 2129–2144. [27] Nagakura J., Shigenaga H., Akama A. , Takahashi M., Growth and transpiration of Japanese cedar (Cryptomeria japonica) and Hinoki cypress (Chamaecyparis ... bal- ance between transpiration and photosynthesis when soil wa- ter availability declined, suggesting that American chestnut is adapted to tolerate water deficit. This trait, if mainta...

Ngày tải lên: 07/08/2014, 16:20

... use in biomonitoring. Stomatal structural damage, used as an indicator of atmosphe- ric pollution [50], was also proved to be sensitive to surfactants. The symptomatology of stomatal damage was ... After testing that variables’ distribution was parametric, data were collectively analysed using a two-factor multivariate analysis of variance (MANOVA) to test the effect of trea...

Ngày tải lên: 08/08/2014, 00:22

... for paper and paperboard [2]. The fraction of paper and paperboard allocated to long-lived prod- ucts was assumed to include the printing and writing paper in use plus the paper and paperboard ... remaining parameters resulted in an average decrease in carbon sequestration smaller than 4%. The maximum estimate of the stock-change approach exceeded the default estimate in abou...

Ngày tải lên: 08/08/2014, 00:22

... speed was corrected according to Sandoz [31]. 2.3. Statistical analysis The mean by ramet at each stage of sampling was submitted to a variance and a covariance analysis [30] according to the following linear ... standing trees with an ultrasound method has the advantage of keeping the trees alive but leads to a loss in the gain of the selection. This method also has t...

Ngày tải lên: 08/08/2014, 01:22

... mountains: water potential, stomatal conductance and transpiration. Ann Sci For 52, 117-129 Meinzer FC, Grantz DA (1990) Stomatal and hydraulic conductance in growing sugarcane: ... stomatal adjust- ment to water transport capacity. Plant Cell Environ 13, 383-388 Meinzer FC, Grantz DA (1991) Coordination of stom- atal, hydraulic, and canopy boundary...

Ngày tải lên: 08/08/2014, 18:21

... seedlings, a marked and parallel decline in both C0 2 assimila- tion and stomatal conductance occurred from day 0 to day 9 after transplanting (Fig. 1a and b); afterwards ... due to an alteration of mesophyll photosynthetic capacity. The effects of transplanting stress on photosynthesis, stomatal conductance and leaf water potential in Ce...

Ngày tải lên: 09/08/2014, 04:20

... of hardiness attained. Between 20 October and 24 November, the Norway shoots hardened at a rate of ca 0.3°C d- 1 compared to the Sitka which hardened at a rate of ca 0.2°C ... measured conductivity values, the rate of change in conductivity or normalised leakage rate (k) was calculated. A comparison of k values with visible damage show...

Ngày tải lên: 09/08/2014, 04:20