Báo cáo lâm nghiệp: "Contribution à l’étude du couple Fomes annosus-épicéa variabilité de l’hôte et de l’agent pathogène" potx
Báo cáo lâm nghiệp: "Contribution à l’étude du couple Fomes annosus-épicéa variabilité de l’hôte et de l’agent pathogène" potx
... Contribution à l’étude du couple Fomes annosus-épicéa : variabilité de l’hôte et de l’agent pathogène : (Contribution to the study of Fomes annosus (Contribution to the study of Fomes ... une grande variabilité du comportement des isolats, particulièrement en ce qui concerne la sécrétion de laccase, et la sensibilité aux terpènes. L...
Ngày tải lên: 09/08/2014, 06:21
Báo cáo lâm nghiệp: "Contribution à l’étude de la variabilité biologique biochimique du pin à crochets (Pinus uncinata Ram.) dans les Pyrénées" ppsx
... populations. Contribution à l’étude de la variabilité biologique et biochimique du pin à crochets (Pinus uncinata Ram.) dans les Pyrénées R. CANTEGREL Biologie des Ecosystè Centre de Biologie des ... génétique. A l’issue de l’étude séparée des caractères, on peut admeltre en conclusion l’exis- tence aux Pyrénées occidelllales de deux taxons...
Ngày tải lên: 09/08/2014, 06:21
Báo cáo lâm nghiệp: "Contribution à l’étude du pathologie racinaire" potx
... dégagement complet de systèmes racinaires il la pclle mécanique. L’étude de l’évolution individuelle de chaque arbre depuis 1975 a été effectuée par des méthodes dendrochronotogiques. Il ... hasardeux de déduire l’état de la totalité du système racinaire d’une simple obser- vation des parties superficielles. La seconde méthode donne accès à...
Ngày tải lên: 09/08/2014, 06:21
Báo cáo lâm nghiệp: "Contribution à l’étude de la production des taillis de Chêne vert en forêt de la Gardiole de Riaans" ppt
... futaies, et de parvenir ainsi à une meilleure compréhension du fonctionnement des cépées de Chêne vert qui émettent des brins à des périodicités successives, et d’aborder les ... classe de croissance que le brin dominant. Une réserve est à apporter à cette conclusion en particulier dans Contribution à l’étude de la production des ta...
Ngày tải lên: 09/08/2014, 06:22
Báo cáo lâm nghiêp: "Contribution à la taxonomie et à l’écologie des chênes du Berry" ppt
... correspondent à Quercus robur L., Quercus petraea (Matt.) Liebl., et Quercus pubescens Willd. La rareté des individus réellement intermédiaires permet de rattacher la plupart des ... micro-variations de température et de pluviométrie, à l’intérieur de la forêt, voire de la placette. Il s’agit d’un travail important, dépassant le cadre de...
Ngày tải lên: 09/08/2014, 06:22
Báo cáo lâm nghiệp: "Contribution of different solutes to the cell osmotic pressure in tap and lateral roots of maritime pine seedlings: effects of a potassium deficiency and of an all-macronutrient deficienc" pptx
... of the sam- ple at 950 °C, nitrogen oxides were reduced to N2 and this gas was detected by a thermal conductivity detector. To determine K, Na, Mg, Ca and P contents, ... Seillac P., Contribution à l’étude de la nutri- tion du pin maritime : variations saisonnières de la teneur des pseudophylles en azote, potassium et acide phosphorique,...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "Contribution to knowledge of Hylesinus fraxini (Panzer, 1779) (Coleoptera: Scolytidae) natural enemies from Northern Moravia (Czech Republic)" pdf
... chunks were moved under the labo- ratory conditions, subsequently individuals of bark beetles with their predators and parasitoids were reared. Predators and chalcid wasps were identified to species ... emerged parasitoids individuals Mortality parasitism = 100% (∑ em. predators individuals + ∑ em. parasitoids ind. + ∑ em. bark beetles ind.) ∑ emerged predators individuals Mortality...
Ngày tải lên: 07/08/2014, 03:22
![Báo cáo lâm nghiệp: "Multivariate statistical approach to comparison of the nutrient status of Norway spruce (Picea abies [L.] Karst.) and top-soil properties in differently managed forest stands" potx](https://media.store123doc.com/images/document/2014_08/07/medium_yad1407356553.jpg)
Báo cáo lâm nghiệp: "Multivariate statistical approach to comparison of the nutrient status of Norway spruce (Picea abies [L.] Karst.) and top-soil properties in differently managed forest stands" potx
... were determined in in- dividual needle classes. Nitrogen was determined coulometrically. The other elements were deter- mined by an extraction-spectrophotometric method (Z 1994). Under ... soil Ca 2+ was statistically detected as independent of organogenic characteristics but dependent on CEC. It means that the precipitation of soil calcium carbonate depends on litter fall feed .....
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Contribution to the knowledge of Clethrionomys glareolus populations in forests of managed landscape in Southern Moravia (Czech Republic)" pot
... survival of rodents and can even cause winter breeding (Z 1962; J et al. 2004). During the next spring and summer, rodents make use of both the stored seeds and fresh vegetation and ... 315–338. FLOWERDEW J.R., 1987. Mammals. eir Reproductive Bio- logy and Population Ecology. London, Edward Arnold: 241. FLOWERDEW J.R., GARDNER G., 1978. Small rodent popu- lations and fo...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Contribution to the knowledge of Apodemus sylvaticus populations in forests of the managed landscape of southern Moravia (Czech Republic)" potx
... location. e fol- lowing groups of forest types were identified there: Ulmeto-Fraxinetum carpineum, Saliceto-Alnetum and Carpineto-Quercetum acerosum. e annual mean air temperature in the study ... production and outbreaks of non- cyclic rodent populations in deciduous forests. Oecologia, 54: 184–192. KING C.M., 1985. Interactions between woodland rodents and their predators. In: FLOWERDE...
Ngày tải lên: 07/08/2014, 03:22