Báo cáo lâm nghiệp: "Comparison of two types of ECOLURE lure on Ips typographus (L ) (Coleoptera: Scolytidae)" doc

... efficiency of 2 types of phero- mone dispensers was compared (ECOLURE CLASSIC and ECOLURE TUBUS). Both lures contain the same chemical components, but they have a different way of packing. ECOLURE ... distribution). Keywords: ECOLURE; efficiency; Ips typographus; pheromone dispenser Supported by the Ministry of Agriculture of the Czech Republic, Project No. 81136 Ips t...

Ngày tải lên: 07/08/2014, 10:22

... some conclusions can be drawn from the analysis of variance. In the full sib series of trials, family effects were only significant at later stages of development on one of the sites (QC), thus ... Details of age, climate and location of field trials used in this study. Set of trials Name Establishment Latitude (north) Longitude (west) Altitude (m) Temperature (ºC) Mean annu...

Ngày tải lên: 08/08/2014, 00:22

... Larsen J.R., Bejer B., Monitoring spruce bark beetle (Ips typographus (L. )) populations under non-epidemic conditions, Scand. J. For. Res. 6 (199 1) 217–226. [13] Jacobs K., Wingfield M.J., Leptographium ... zone, one at the border of the visible reaction and one 15 mm from the border. Two samples were also taken from a depth of 1 mm in the sapwood. When the reaction zones...

Ngày tải lên: 08/08/2014, 01:22

... 1.5 ml of incubation medium were cleared by addition of 0.3 ml of 1 M Zn acetate and cen- trifugation. In the leaf NR assays, Triton X-100 was added (0.1%, v/v) to the ... 198 3); hence, our desire to progress in understanding of its physiology. In an extension of our work on nitrogen nutrition of A. glutinosa (e.g., Pizelle and Th...

Ngày tải lên: 09/08/2014, 04:20

... humification horizon). His study was conducted in a lower altitude and all ten tested species had very low content of carbon in H horizon, so blue spruce was not an exception. Carbon share of soil ... (199 5) found only 47.4 t of dry matter in humus horizons per ha. Actual quantity as well as quality of upper soil layers seems to be hardly limited by site conditions. Despite...

Ngày tải lên: 07/08/2014, 03:22

... M 1974, 200 6). Although they both occur over a large area of Eu- rope, there is still only limited information on them in most parts of this area. e centre of distribution of both species ... part of research could be carried out on lying trees. e forest stands were coppice converted into high stands on gentle slopes of south western aspect. e parent rock of...

Ngày tải lên: 07/08/2014, 03:22

... calculated as the product of the amount of water (l m 2 ) and the relevant element concentration (mekv/l). e t-test (Microsoft Excel) was used to compare fluxes of el- ements on the open plot and ... accumulation and consequen- tial conflux of water below the canopy was lower and the interception of horizontal precipitation was Table 3. List of methods and instrumen...

Ngày tải lên: 07/08/2014, 04:20

... ––––––––––––––– ( 1) V × C travel where: S – optimal road spacing (m), C road – cost of the construction and maintenance of 1 m road length (€/m), C travel – cost of travelling of 1 m 3 of logs ... (/m 3 ) Road cost (/m 3 ) Total cost (/m 3 ) Cost (/m 3 ) Road spacing (m) 424 J. FOR. SCI., 55, 2009 ( 9): 423–431 ese assumptions include constant €/m 3...

Ngày tải lên: 07/08/2014, 04:20

... observatory Deštné v Orlických horách (2005–200 7) 2005 2006 2007 Month T (°C) precipitation (mm) month T (°C) precipitation (mm) month T (°C) precipitation (mm) 1 –2.3 197.5 1 –6.7 43.3 1 1.2 169.8 2 ... conditions in years of the study. ree year period of the study is minimal for as- sessment of fungi occurrence as fructifications are strongly dependent on weather conditio...

Ngày tải lên: 07/08/2014, 04:20

... (nutrient content, function of assimilatory organs) were also great. e results document that container seedlings of Norway spruce produced by intensive technology in controlled condi- tions of plastic ... of container plants (plugs) was better if evaluated according to defoliation (defoliation index) and ac- cording to the presence of colour changes in needles (discoloration ind...

Ngày tải lên: 07/08/2014, 10:22