Báo cáo lâm nghiệp: "Productivity of Pinus elliottii, P caribaea and their F1 and F2 hybrids to 15 years in Queensland, Australia" ppsx

Báo cáo lâm nghiệp: "Productivity of Pinus elliottii, P. caribaea and their F1 and F2 hybrids to 15 years in Queensland, Australia" ppsx

Báo cáo lâm nghiệp: "Productivity of Pinus elliottii, P. caribaea and their F1 and F2 hybrids to 15 years in Queensland, Australia" ppsx

... of P . This paper examines the productivity of the hybrid pine in comparison to the parental species to 15 years after planting, using data from a large genetic study involving factorial mat- ings within ... Variation in the wood properties of the Pinus elliottii × Pinus caribaea var. honduren- sis F 1 hybrid, its parental species, and backcross to Pinus el- li...
Ngày tải lên : 07/08/2014, 16:21
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Báo cáo lâm nghiệp:"Mycorrhization of Pinus halepensis Mill. and Pinus pinaster Aiton seedlings in two commercial nurseries" ppsx

Báo cáo lâm nghiệp:"Mycorrhization of Pinus halepensis Mill. and Pinus pinaster Aiton seedlings in two commercial nurseries" ppsx

... Mill. et Pinus pinaster Aiton dans deux p pinières forestières. Deux espèces méditerranéennes de pin (Pinus halepensis et Pinus pinaster) et sept espèces de champignons (Pisolithus tinctorius, ... fungal spe- cies appears in P. halepensis as well as in P. pinaster. Apart from the inoculated species, different contaminant fungi were detected, mainly P. tinctorius and particularl...
Ngày tải lên : 08/08/2014, 01:21
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Báo cáo lâm nghiệp: "Pyrolysis of Pinus halepensis needles treated with fire retardants" pdf

Báo cáo lâm nghiệp: "Pyrolysis of Pinus halepensis needles treated with fire retardants" pdf

... Non-isothermal (step) pyrolysis of Pinus halepensis nee- dles treated with DAP. The effect of sea water on the fire retarding action of DAP. Figure 7. Non-isothermal (step) pyrolysis of Pinus halepensis ... retarding action of AS. Pyrolysis of pine needles in presence of retardants 555 The presence of phosphoric acid and phosphorous pentoxide would cause an earlier deh...
Ngày tải lên : 08/08/2014, 01:22
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Báo cáo lâm nghiệp: "Effect of storage conditions on post planting water status and performance of Pinus radiata D. Don stock-types" doc

Báo cáo lâm nghiệp: "Effect of storage conditions on post planting water status and performance of Pinus radiata D. Don stock-types" doc

... year to year, we pooled all measures of the three years. 2.2. Post-storage planting Seedlings were transferred to PVC containers (GODET 430, P pinière Robin, France), containing a mixture of peat ... and to –2.48 MPa in BR seedlings stored for 15 days at 10 ºC (Tab. I). The RWC of plants ranged between 80 and 90% in PR seed- lings and between 58 and 90% in BR s...
Ngày tải lên : 08/08/2014, 01:22
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Báo cáo lâm nghiệp: "Study of natural hybridization between Alnus incana (L.) Moench. and Alnus glutinosa (L.) Gaertn" pptx

Báo cáo lâm nghiệp: "Study of natural hybridization between Alnus incana (L.) Moench. and Alnus glutinosa (L.) Gaertn" pptx

... complete pollination of the plants by proper pollen, although flowering periods of the species overlap. As V .P. Parfenov notes, probability of these species crossing increases in anomalous years, ... peculiarity to presence of specific conditions for flowering and pollination phases, as well as to the fact that polymorphic spe- cies in adapting are capable to change t...
Ngày tải lên : 07/08/2014, 03:22
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Báo cáo lâm nghiệp: " Consequences of increased deer browsing winter on silver fir and spruce regeneration in the Southern Vosges mountains: Implications for forest management" potx

Báo cáo lâm nghiệp: " Consequences of increased deer browsing winter on silver fir and spruce regeneration in the Southern Vosges mountains: Implications for forest management" potx

... was present in 2 of the 49 spruce type plots so they were not included in the sample), n fir-spruce Bl = 15, n fir-spruce Bm+h = 21. Figure 1. Abundance of spruce and fir-spruce types of regeneration as ... Indeed, the types spruce Bl and fir-spruce Bl were observed in the various conditions of stand composi- tion, and the Bm+h types were frequent both in the spruce an...
Ngày tải lên : 08/08/2014, 00:21
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Báo cáo lâm nghiệp: "Effects of elevated carbon dioxide on leaf gas exchange and growth of cork-oak (Quercus suber L) seedlings " pps

Báo cáo lâm nghiệp: "Effects of elevated carbon dioxide on leaf gas exchange and growth of cork-oak (Quercus suber L) seedlings " pps

... allocation and foliar nutrient contents of two Eucalyptus species of the wet-dry tropics of Aus- INTRODUCTION To understand and predict the impact of increasing CO 2 upon natural ... biomass increase over one growing season observed in Q petraea (+138%) and Pinus pinaster (+63%) (Guehl et al, 1994). In Q suber, root and shoot biomass...
Ngày tải lên : 08/08/2014, 18:21
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Báo cáo lâm nghiệp: "Occurrence of Ips duplicatus (Coleoptera: Curculionidae, Scolytinae) on pines (Pinus sp.) in the Czech Republic and southern Poland – Short Communication" pdf

Báo cáo lâm nghiệp: "Occurrence of Ips duplicatus (Coleoptera: Curculionidae, Scolytinae) on pines (Pinus sp.) in the Czech Republic and southern Poland – Short Communication" pdf

... Zucc.) Carrier., Pinus sylvetris, Pinus sibirica). e life cycle of I. duplicatus is associated with Picea abies in Central Europe. Adults infest the upper part of stems up to tops (P , K ... north-eastern Poland. Supported by the Ministry of Agriculture of the Czech Republic, Project No. 0002070201. Occurrence of Ips duplicatus (Coleoptera: Curculionidae, Sco...
Ngày tải lên : 07/08/2014, 03:22
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Báo cáo lâm nghiệp: "Productivity and cost of manual felling with a chainsaw in Caspian forests" pptx

Báo cáo lâm nghiệp: "Productivity and cost of manual felling with a chainsaw in Caspian forests" pptx

... loggers in selecting an appropriate system under certain stand and harvest circumstances. e mean of delay times was 0.8l min per turn, which was 0.22, 0.44 and 0 .15 min per turn for opera- tional, ... with thinning a commercial Appalachian hardwood stand in northern West Virginia. Northern Journal of Applied Forestry, 3: 159 –163. HOLMES T .P. , BLAT G.M., ZWEEDE J.C., PER...
Ngày tải lên : 07/08/2014, 10:21
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Báo cáo lâm nghiệp: "Evaluation of three methods for estimating the Weibull distribution parameters of Chinese pine (Pinus tabulaeformis)" pps

Báo cáo lâm nghiệp: "Evaluation of three methods for estimating the Weibull distribution parameters of Chinese pine (Pinus tabulaeformis)" pps

... Chinese pine (Pinus tabulaeformis) data and simulation data using appropriate statistical procedures. MATERIALS AND METHODS Field data description e data were provided by the Inventory Institute ... Weibull distribution parameters of Chinese pine (Pinus tabulaeformis) Y. L Research Institute of Resource Information and Techniques, Chinese Academy of Forestry, Beijing, C...
Ngày tải lên : 07/08/2014, 10:22
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