Báo cáo lâm nghiệp: "Morphological evaluation of cork oak (Quercus suber): Mediterranean provenance variability in Tunisia" doc

Báo cáo lâm nghiệp: "Morphological evaluation of cork oak (Quercus suber): Mediterranean provenance variability in Tunisia" doc

Báo cáo lâm nghiệp: "Morphological evaluation of cork oak (Quercus suber): Mediterranean provenance variability in Tunisia" doc

... www.afs-journal.org DOI: 10.1051/forest:2007032 Original article Morphological evaluation of cork oak (Quercus suber): Mediterranean provenance variability in Tunisia Mhemmed G a * , Mohamed Larbi ... evaluated in the INRGREF station in the region of Nefza (140 km to the west of Tunis), where 30 blocks were defined. The pre-planting started in 1997. Cork...

Ngày tải lên: 07/08/2014, 16:21

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Báo cáo lâm nghiệp: "Water relations of cork oak (Quercus suber L.) seedlings in response to shading and moderate drought" ppt

Báo cáo lâm nghiệp: "Water relations of cork oak (Quercus suber L.) seedlings in response to shading and moderate drought" ppt

... differences in the soluble sugar concentration. Light levels in the understory of mature cork oak stands in Spain, can vary from 12 to 70% of incident radiation, depending on the structure of the ... 13.5–16% and LL2: 5–6% of full sunlight). Water relations of cork oak seedlings 379 of the water stress conditions was assured. Analysis of variance of water conten...

Ngày tải lên: 08/08/2014, 00:22

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Báo cáo lâm nghiệp: "Initial evaluation of half-sib progenies of Norway spruce using the best line" potx

Báo cáo lâm nghiệp: "Initial evaluation of half-sib progenies of Norway spruce using the best line" potx

... improvement and sustainable forestry – impact of two cycles of loblolly pine breeding in the U.S.A. Forest Genetics, 6: 229–234. LINDGREN D., WERNER M., 1989. Gain generating ef- ficiency of different ... Norway spruce beginning with a careful initial investigation of local populations. Following the testing of plus trees, the next step is the implemen- tation of long-term bre...

Ngày tải lên: 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Current possibilities of using Norway spruce (Picea abies [L.] Karst.) in forest regeneration in the air-polluted region of the northeastern Krušné hory Mts" doc

Báo cáo lâm nghiệp: "Current possibilities of using Norway spruce (Picea abies [L.] Karst.) in forest regeneration in the air-polluted region of the northeastern Krušné hory Mts" doc

... stocking of birch stands and that the number of injured plants decreases with the increasing stand density (K 2007). e smoothing of total heights and increments of underplanting in the ... spruce Reconstruction of stands Underplanting birch Inspection Bohemian - Moravian upland Lineární (Underplanting of present stands spruce) Lineární (Reconstruction of stands Underpl...

Ngày tải lên: 07/08/2014, 03:22

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Báo cáo lâm nghiệp: "Natural regeneration of sessile oak under different light conditions" pptx

Báo cáo lâm nghiệp: "Natural regeneration of sessile oak under different light conditions" pptx

... known finding that the growth per- formance of oak seedlings increases with increas- ing light intensity (Table 6). It was of interest that even at the lowest degree of light intensity, i.e. in a ... of the root collar of oak seed- lings, which was about 2.8 mm (min 1.2–max 9.0mm) in 2008, increased to 6.1 mm during two years (min 2.5–max 23 mm). e mean height increment...

Ngày tải lên: 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Effects of microsite variation on growth and adaptive traits in a beech provenance trial." pps

Báo cáo lâm nghiệp: "Effects of microsite variation on growth and adaptive traits in a beech provenance trial." pps

... dates, again dispersed over the whole season, using a 5-stage scale (1 – green leaves, 2 – beginning of autumn colouring of individual leaves, 3 – beginning of autumn leaf colouring on a ... using a common two-way analysis of variance showed a significant provenance × block interaction effect indicating the heterogeneity of blocks. Analysis of covariance using single-tree...

Ngày tải lên: 07/08/2014, 10:21

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Báo cáo lâm nghiệp: "Effects of drought and heat on forest insect populations in relation to the 2003 drought in Western Europe" ppt

Báo cáo lâm nghiệp: "Effects of drought and heat on forest insect populations in relation to the 2003 drought in Western Europe" ppt

... understanding of the dynamics of forest insect populations. It is often difficult to disentangle density dependent and density independent pro- cesses involved in the dynamics of forest insect populations. Climate ... September [16, 78]. In addition to a general increase in mean monthly temperatures, two heat waves affected most of Western Europe, first in the beginning of June,...

Ngày tải lên: 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Direct sowing of holm oak acorns: effects of acorn size and soil treatment" ppsx

Báo cáo lâm nghiệp: "Direct sowing of holm oak acorns: effects of acorn size and soil treatment" ppsx

... planting of seedlings [5, 27, 31, 37], perhaps due to the origin and sizes of the acorns used, the ways of collecting and storing the acorns, pre-germination treatments, conditions of the sowing, climatology ... rate of the root dur- ing the first months of life (winter-spring) can be crucial to the survival of the seedling over the dry season [20]. A deep tap root is one of th...

Ngày tải lên: 07/08/2014, 16:20

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Báo cáo lâm nghiệp: "Effects of resource availability on condensed tannins and nitrogen in two Quercus species differing in leaf life span" doc

Báo cáo lâm nghiệp: "Effects of resource availability on condensed tannins and nitrogen in two Quercus species differing in leaf life span" doc

... heterogeneity in Mediterranean ecosystems overlaps with a high frequency of disturbances. Fire and herbivory, as two of the main distur- bances in the Mediterranean- Basin, play a crucial role in de- termining ... I., Perevolotsky A., Nitsan Z., Effect of daily supplementation of polyethylene glycol on intake and di- gestion of tannin-containing leaves (Quercus calliprin...

Ngày tải lên: 07/08/2014, 16:21

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Báo cáo lâm nghiệp: "Spatial dynamics of late successional species under Pinus nigra stands in the northern Apennines (Italy)" pps

Báo cáo lâm nghiệp: "Spatial dynamics of late successional species under Pinus nigra stands in the northern Apennines (Italy)" pps

... canopy opening, moderate thinning) [18]. Finally, although predicting the evolution of the examined stands in relation to the present colonisation strategies is diffi- cult, an increase of structural ... process of the NR was not continuous but temporally limited (Fig. 5). In plot 1 a relative peak of Abies alba saplings occurred in the two years immediately after the thinning c...

Ngày tải lên: 08/08/2014, 00:22

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