Báo cáo lâm nghiệp: "Résultats préliminaires concernant la mycorhization contrôlée de vitroplants de chêne (Quercus robur L )" pps
Báo cáo lâm nghiệp: "Résultats préliminaires concernant la mycorhization contrôlée de vitroplants de chêne (Quercus robur L." pptx
... s’agit de : Laccaria laccata Hebeloma cru.rtuliniforme Paxillus involutus Suillus granulatus La préparation de l inoculum a été faite selon la technique mise au point par F. LE TACON ... trace de milieu de culture, puis ils sont transplantés sur le mélange tourbe vermiculite inoculé avec le champignon. Les récipients de culture (bocaux de 1...
Ngày tải lên: 09/08/2014, 06:22
Báo cáo lâm nghiệp: "Résultats préliminaires concernant la mycorhization contrôlée de vitroplants de chêne (Quercus robur L.)" pps
... proximale de la tige est toujours plus faible que celle de la partie distale, ce résultat contraire aux notions classiquement admises selon lesquelles les portions les plus ... du chêne vert (Quercus ilex L. ) Michèle L HELGOUAL’CH, H. ESPAGNAC Michèle L HELGOUAL’CH, des Sciences, Laboratoire de Bio H. ESPAGNAC logie végétale expérime Facult...
Ngày tải lên: 09/08/2014, 06:22
Báo cáo lâm nghiệp: " Sicily represents the Italian reservoir of chloroplast DNA diversity of Quercus ilex L. (Fagaceae)" pptx
... italien de la diversité de l ADN chloroplastique de Quercus ilex L. Le polymorphisme de l ADN chloroplas- tique a été analysé chez 44 populations italiennes de chêne vert. Les résultats obtenus avec ... l hypothèse d’un refuge glaciaire existant dans le Sud de l Italie et soulignent la grande importance de la conservation des populations d’arbres en Sicile dans lesq...
Ngày tải lên: 08/08/2014, 00:21
Báo cáo lâm nghiệp: "Etude comparée des potentialités hivernales d’assimilation carbonée de trois conifères de la zone tempérée (Pseudotsuga menziesii Mirb., Abies alba Mill. et Picea excelsa Link.)" ppt
... .’;6’/;!/K’;’)’<;’<.!!!. la mort des tissus est liée il la formation de glace à l intérieur des cellules. Lal rèces résistantes C tu gel de jaçon limitée (t). La formation de ... CO! des espaces intercellulaires aux sites de carboxylation dans les chloroplastes et de la résistance biochimique à la carboxylation a été calculée d’ap...
Ngày tải lên: 09/08/2014, 06:21
Báo cáo lâm nghiệp: "Addressing spatial variability in provenance experiments exemplified in two trials with black spruc" pps
... is design model, in which the residuals were spa- tially independent, was evaluated using SAS PROC MIXED (SAS ® Institute Inc. 1999). Spatial model Second set of models allowed the modelling ... options available for the analysis of field trials. Experience with many analyses lead to the realization that spatial variation has multiple sources and classical field de- signs often fail to...
Ngày tải lên: 07/08/2014, 03:22
![Báo cáo lâm nghiệp: "Analysis of herbicide effects on Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) natural regeneration" ppsx](https://media.store123doc.com/images/document/2014_08/07/medium_orv1407356560.jpg)
Báo cáo lâm nghiệp: "Analysis of herbicide effects on Douglas fir (Pseudotsuga menziesii [Mirb.] Franco) natural regeneration" ppsx
... 344.58, df = 8, P << 0.01). Similarly like in 2006, the number of Douglas fir seedlings was significantly variable on the particular plots (χ 2 = 22.73, df = 2, P << 0.01). Even though ... << 0.01). Furthermore, the incidence of Douglas fir seedlings is markedly distant on the particular plots (χ 2 = 187.31, df = 2, P << 0.01). e total number of Douglas fir seedli...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Analysis of the production potential of raw wood in the forests of Slovakia" pps
... into final products and goods of final utility value is relatively simple and ecological. erefore the production of raw wood material considering its regulation has a great ecological and economic ... P et al. (1996) dealt with these issues in more detail. ey derived allowable cuts by 2020 for the whole country as well as for the re- spective federal states. In former federal state...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: " Production potential of Douglas fir at mesotrophic sites of Křtiny Training Forest Enterprise" ppsx
... Dgl 35, spruce 20, larch 15 50B9 I 89 25 Dgl 40, larch 45 52A9 89 Dgl 8, spruce 20, larch 15 41B9a 91 Dgl 15, larch 25 178A9 86 Dgl 35, spruce 50 312B9 II 86 45 Dgl 20, larch 20 335B9 94 Dgl ... Douglas fir trees of the largest volume with the 10 largest spruce or larch trees higher, and generally markedly higher, production potential of the introduced Douglas fir was found in all assessed...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Timber harvesting in the ukrainian carpathians: Ecological problems and methods to solve them" ppsx
... wheeled tractors is almost 10% larger than in cutting area de- veloped by crawler tractors. is is explained by the existing limitations of slopes where wheeled tractors can be used and related ... damage is mainly plain and local. ird category: ere are plots with linear dam- age in the form of primary skidding tracks (made by one trunk). It includes single and multiple pas- sages ....
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Comparison of general tree characteristics of less known oak species Quercus dalechampii Ten. and Quercus polycarpa Schur" pot
... mark- edly petiolate leaves; the lamina is elliptic or elliptic- lanceolate, largest in the bottom half with pointed lobes and elongated upper part (K 1990; M 2006). Tough-sided cupules ... Med., Galium sylvaticum L. , Hepatica nobilis Schreber, Asarum europaeum L. , Stellaria holostea L. and Origanum vulgare L. were the most dominant species in the herb layer. In total, 48...
Ngày tải lên: 07/08/2014, 03:22