Báo cáo lâm nghiệp: "Delineation of seed zones for European beech (Fagus sylvatica L ) in the Czech Republic based on isozyme gene markers" ppsx

... Original article Delineation of seed zones for European beech (Fagus sylvatica L. ) in the Czech Republic based on isozyme gene markers Dušan Gömöry a Vladimír Hynek b Ladislav ... for the definition of the spatial structure of genetic varia- tion. Unless there is a special project aimed at the delineation of se...

Ngày tải lên: 09/08/2014, 04:20

... fulfils the determined functions in the best way. In commercial forests it is mainly production of wood and simultaneously fulfilment of other func- tions; in protective forests mainly fulfilment of ... relation between the conditions for natural regeneration and stock- ing that the most suitable combination of all three phases of preconditions for natural regenera...

Ngày tải lên: 07/08/2014, 03:22

... fitting of the distribution because more information is used than in the MOM. CONCLUSION In this study, the good results of the MOM in terms of the number of times for the lowest values of MSE ... than the LSM or the MLE (A-F 200 0). Although the results from the LSM and the MLS estimated methods were inferior to the MOM based on the...

Ngày tải lên: 07/08/2014, 10:22

... of P. pinaster) were inoculated in nursery A, and 1440 seedlings (720 from P. halepensis and 720 from P. pinaster) in nursery B. In all cases, 10 mL/seedling of mycelium inocula were applied on Lactar- ius, ... obtained from all the seedlings in each treatment (an average of 105 seedlings per treatment due to seedlings death). In tables I and II infection index mean are no...

Ngày tải lên: 08/08/2014, 01:21

... clear-cut increase of the cal- cium content. In comparison, both kinds of calcium supply induced no noticeable variation of the content. At the low level of irrigation, ... cation in the soil solution (above some minimum threshold). Some observations in experimental plots in an open field confirm these results obtained with container ma...

Ngày tải lên: 09/08/2014, 04:20

... coincidence or whether the plants could be distinguished from each other by the level of their en- zyme activity, we followed the individual leaf NR activities of symbiotic ... nitrogen-fed alders for several weeks. The data pre- sented in Table II allowed us to distinguish at least 2 groups of plants having signifi- cantly different lev...

Ngày tải lên: 09/08/2014, 04:20

... Sul and Korban [18]. Valdés et al. [19] suggested that a decrease of en- dogenous cytokinins levels may be involved in loss of shoot- forming ability in the apical portions of stone pine cotyledons. On ... shoots 884 P. Alonso et al. Table III. Effect of the dilutions of macroelements on LP culture medium during the induction and expression rooting phases of Pinus pin...

Ngày tải lên: 07/08/2014, 16:20

... trees.ha –1 the total cost is half compared to full-area scrub clearing with PS including the burning of the material. When scrub clearing is done by milling, including the incorporation of biomass into ... infor- mation and data it was possible to accomplish only the average cost calculations for the whole area of the Czech Republic for 2,797 ha of forest lan...

Ngày tải lên: 07/08/2014, 10:21

... P sylvestris (Orlandini and Malcoste, 1972; Toole, 1973; Orlandini and Bulard, 197 5). This clearly indicates the photophilous nature of these two pines, which allows for the ... fires. On the Iberian Peninsula, pine forests dominated by P nigra are mainly found in the southern half, and those dominated by P sylvestris in central and...

Ngày tải lên: 08/08/2014, 18:21

... Slovakia in the territory of Polonic and Westcarpathian bio- geographical subprovinces (i.e. in the region of the Western Carpathians). Plots were selected in all al- titudinal vegetation zones ... cre- ate a field, which is located on the left side of the whole dotted field (along x-axis). It forms the high- est AVZ together with fields of the 8 th and 9 th A...

Ngày tải lên: 07/08/2014, 03:22