Báo cáo lâm nghiệp: "Efficient method of micropropagation and in vitro rooting of teak (Tectona grandis L ) focusing on large-scale industrial plantations" pptx
Báo cáo lâm nghiệp: "Efficient method of micropropagation and in vitro rooting of teak (Tectona grandis L.) focusing on large-scale industrial plantations" pptx
... Tissue culture of forest trees – Clonal multiplication of Tectona grandis (teak) by tissue culture, Plant Sci. Lett. 17 (198 0) 259–268. [14] Krishnapillay B., Silviculture and management of teak plantations, in: ... Regional teak marketing and trade, Proceedings of third regional seminar on teak, Indonesia, 2001, pp. 1–14. [3] Castro R.D., Diaz G.J., Linero J.C., In...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Effect of Melampsora larici-populina on growth and biomass yield of eight clones of Populus nigra" ppsx
... clones from each other in the best way as for the intensity of rust infection. Yield decline was quite low (9 %) in clone 49, which belonged to the most infected clones. Similarly, in clone ... decline in dry matter yield caused by the rust was low (below 9 %) or zero in a half of the clones while it ranged between 19% and 28% in the other half of clones. In so...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "Effects of microsite variation on growth and adaptive traits in a beech provenance trial." pps
... spa- tial arrangement of blocks used was very ineffi cient in handling the microenvironmental variation with- in the trial site. All blocks are clearly heterogeneous with respect to all environmental ... variation within populations and/ or environmental variation on very small scales. Analysis of covariance confi rmed the expected signifi cant provenance eff ect on all traits (Tab...
Ngày tải lên: 07/08/2014, 10:21
Báo cáo lâm nghiệp: "Effect of species composition, stand density and site index on the basal area increment of oak trees (Quercus sp.) in mixed stands with beech (Fagus sylvatica L.) in northern France" potx
... simulations to analyze the behaviour of the model [60]. All graphic and statistical analy- sis was realised with SAS [51]. 4. RESULTS The segmented nonlinear model (Eq. ( 1)) fit well in all of the ... to the individual trees [9]. In addition, our dataset is not based on crop-tree selection thinnings, but on stand-related thinning regimes. This partly explains the linear relati...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Effects of drought and heat on forest insect populations in relation to the 2003 drought in Western Europe" ppt
... expected in 2004 in the same region did not materialize. Conversely, exceptionally high population levels of the beech woolly aphid, Phyllaphis fagi L. were observed in 2004 (Fig. 2) following a ... level; ( +) = local damages with low population level; ( ) = population decrease; (n) = no data available; empty cell = no damage or outside insect geographic distribution. Damag...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Effect of leaf biomass and phenological structure of the canopy on plot growth in a deciduous hardwood forest in northern Japan" pot
... precipitation during the growing season (May-October). We also examined whether strong winds resulted in early leaffall by regress- ing relative monthly leaffall (the ratio of monthly leaffall to annual leaffall) ... emerge in early spring; these main- tain foliage with minimal investment in stem elongation. Long shoots have long stems with several late leaves that continue to emerge from...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Effect of tree species substitution on organic matter biodegradability and mineral nutrient availability in a temperate topsoil" pptx
... White C., Volatile and water-soluble inhibitors of nitrogen mineral- ization and nitrification in a ponderosa pine ecosystem, Biol. Fertil. Soils 2 (198 6) 97–104. To access this journal online: www.edpsciences.org/forest Tree ... improves soil quality of sloping oak stands in a German low mountain range, Ann. For. Sci. 62 (200 5) 23–29. [31] Paavolainen L. , Kitunen V., Smo...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Efficiency of early selection for rotation-aged wood quality traits in radiata pine" pdf
... Aus- tralia, has about 750 000 ha of plantations [47]. Of the 7.3 mil- lion cubic meters of softwood sawlogs and veneer logs, valued at $460 millions at the mill gate annually [1], radiata pine logs currently ... experimental design of Rennick and Flynn sites. Site Flynn Rennick Latitude 38 ◦ 12’ 37 ◦ 40’ Longitude 146 ◦ 40’ 140 ◦ 54’ Elevation (m) 100 70 Rainfall (mm) 760 710 Soi...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Effects of selective thinning on growth and development of beech (Fagus sylvatica L.) forest stands in south-eastern Slovenia" docx
... (T1 and T 2) and the control stands (C1 and C 2) in July 1994. All plant species 54 A. Boncina et al. Table VII. Species richness and abundance of plant species in the herb layer in the thinned and ... smaller number of crop (selected) trees in the first thinning and thinning intensities, taking account of economical factors [46, 51]. In Slovenia, selective th...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Effects of the clear-cutting of a Douglas-fir plantation (Pseudotsuga menziesii F.) on the chemical composition of soil solutions and on the leaching of DOC and ions in drainage waters" pps
... Effects of clear-cutting on soil solutions and ecosystem functioning In the soil upper layers, ZTL and TL solutions changed in different ways: the concentration of elements in ZTL solutions strongly ... gravitational solutions using zero-tension plate lysimeters (ZTL) made up of polyethylene because they are the solutions really drained out of the soil, and, (ii) capillary...
Ngày tải lên: 07/08/2014, 16:20