Báo cáo lâm nghiệp: "Variations clonales de l’aptitude du pin sylvestre à assurer le développement de Diprion pini L (Hym, Diprionidae) en milieu naturel" pdf
Báo cáo lâm nghiệp: "Variations clonales de l’aptitude du pin sylvestre à assurer le développement de Diprion pini L (Hym, Diprionidae) en milieu naturel" pdf
... déjà Article original Variations clonales de l aptitude du pin sylvestre à assurer le développement de Diprion pini L (Hym, Diprionidae) en milieu naturel MA Auger-Rozenberg C ... Bastien C (1990) Comestibilité du feuillage de différents clones de pin sylvestre pour Diprion pini L (Hym, Diprioni- dae). I. Incidence de...
Ngày tải lên: 08/08/2014, 18:22
Báo cáo lâm nghiệp: "Variations of construction cost associated to leaf area renewal in saplings of two co-occurring temperate tree species (Acer platanoides L. and Fraxinus excelsior L.) along a light gradient" doc
... surface foliaire chez de jeunes plants de deux espèces sympatriques de forêt tempérée (Acer platanoides L. et Fraxinus excelsior L. ) le long d’un gradient de lumière. Le renouvellement des feuilles ... expliquent la forte diminution de la masse de la tige feuillée de l année par unité de surface foliaire (SMA), et l essentiel de la plasticité observée pour CC A de...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp: "Variations in growth and virulence of Leptographium wingfieldii Morelet, a fungus associated with the bark beetle Tomicus piniperda L" pot
... divers isolats de Leptographium wingfieldii Morelet, isolés d’adultes de Tomicus piniperda L. et de leurs galeries provenant d’attaques récentes sur des pins sylvestres (Pinus sylvestris L. ) dans ... diverses températures, la capacité du champignon à stimuler la réaction hypersensible du liber et à croître dans la zone de réaction après inoculations ponctuelles à des pins...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo lâm nghiệp: "The root-plant ratio changes in the first growing periods of wild cherry (Prunus avium L.) plantations" pptx
... without leaves, the volume of whole root system and volume of fine roots (thinner than 2 mm) were measured in a glass scaled cylinder filled up with water. e accuracy of scaled cylinder was ... research plot at the beginning of the experiment, i.e. 200 plants in total. Samples of 46 plants were randomly extracted from all research plots on May 9, 2006. Samples were cleaned of soil and...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "The effect of liming on the mineral nutrition of the mountain Norway spruce (Picea abies L.) forest" docx
... content in current needles during dormancy was sufficient (see Table 2) on all studied plots during the period of 2000–2005. Magnesium content was sufficient only on the limed plots. Nitrogen ... phosphorus content was insufficient and potassium content was mostly insufficient on all studied plots. Sulphur content in current needles during dor- mancy (Fig. 7) fluctuated on all studied plots (l...
Ngày tải lên: 07/08/2014, 10:21
![Báo cáo lâm nghiệp: "Comparison of morphological and physiological parameters of the planting material of Norway spruce (Picea abies [L.] Karst.) from intensive nursery technologies with current bareroot plants" ppt](https://media.store123doc.com/images/document/2014_08/07/medium_uwg1407381722.jpg)
Báo cáo lâm nghiệp: "Comparison of morphological and physiological parameters of the planting material of Norway spruce (Picea abies [L.] Karst.) from intensive nursery technologies with current bareroot plants" ppt
... P., MILLER J.R., 2003. Applications of chlorophyll fluorescence in forestry and ecophysiology. In: Practical applications of chlorophyll fluorescence in plant biology. DELL J.R., TOIVONEN P. ... of differences between mean values of compared parameters was evaluated by Student’s t-test for unequal sample sizes to p-value 0.01 and 0.05. RESULTS Evaluation of plantable plants Plants of ... p...
Ngày tải lên: 07/08/2014, 10:22
Báo cáo lâm nghiệp: "Genetic variation of Pinus pinaster Ait. seedlings in susceptibility to the pine weevil Hylobius abietis L." docx
... individuelle et familiale d’environ 0,2 et 0,8 respectivement. Le nombre de blessures sur la tige et la couleur des jeunes plants sont corr l s génétiquement. Il semble donc possible d’utiliser ... dommages dus à H. abietis. Les familles les plus vigoureuses ont été les plus attaquées, ce qui limite les possibilités d’inclure la sensibilité à l insecte dans le programme d’améliorat...
Ngày tải lên: 08/08/2014, 00:22
Báo cáo lâm nghiệp:" Foliar N and P resorption and nutrient levels along an elevational gradient in Juniperus oxycedrus L. subsp. " pot
... redistribution of nutrients from leaflets of narrow-leaved lupin (Lupinus angustifolius L. ), Ann. Bot. 49 (1982) 541–543. [23] Killingbeck K.T., The terminological jungle revisited: making a case ... combination of low productivity (and thus low litter production) and low litter decomposability may lead to a low rate of ecosystem nutrient cycling [2]. Low fresh litter nutrient concentratio...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp: "Above- and belowground distribution of dry matter and carbon biomass of Atlantic beech (Fagus sylvatica L.) in a time sequence" doc
... Deneux M., L évaluation de l ampleur des changements climati- ques, de leurs causes et de leur impact prévisible sur la géographie de la France à l horizon 2025, 2050 et 2100, Office parlementaire d’évaluation ... au cours de la chronoséquence, suite aux éclaircies et à l exploitation finale, est évaluée à 355 t/ha, celle du bois laissé sur sol à 52 t/ha, et celle des...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo lâm nghiệp: "Internal levels of plant growth regulators during in vitro culture of wild cherry (Prunus avium L.)" doc
... with a ball mill. Analytical measure- ments were made following the procedure reported elsewhere (Label et al., 1989). Tech- niques used were methanolic extraction, HPLC purification ... nmol!explant-!, measurements given in the apical, middle and basal part will be multiplied by 3, 2 and 1, respectively. Discussion and Conclusion A relationship betwe...
Ngày tải lên: 09/08/2014, 04:20