Báo cáo lâm nghiệp: " The response of weevil communities (Coleoptera: Curculionoidea) to the altitudinal zones of beech stands" ppt

... System. e response of weevil communities (Coleoptera: Curculionoidea) to the altitudinal zones of beech stands J. B Faculty of Forestry and Wood Technology, Mendel University of Agriculture ... is impossible to define the outline of the occurrence of the found spe- cies. Many faunal researches suggest the possibility of the occurrence of...

Ngày tải lên: 07/08/2014, 03:22

... concentrations during defence response in Nor- way spruce embryogenic cell suspension cultures induced by intracellular protein and wall prepara- tions from Sirococcus strobilinus mycelia. MATERIAL AND METHODS Plant ... embryo- genic cultures of Norway spruce (C) and in the cells elicited by mycelium protein fraction (PF) and mycelium wall frac- tion (W...

Ngày tải lên: 07/08/2014, 10:21

... no data on water relations and mineral nutrition is available for infected oaks under field conditions. The knowledge about the effects of Phytophthoras on mature oaks under natural conditions ... analysis of the effects of air pol- lution on forests, 4th ed., United Nations Economic Commission Impact of P. quercina on mature oaks 671 for Europe Convention on Lon...

Ngày tải lên: 07/08/2014, 16:20

... robur displays a larger tolerance to water-logging and associated root hypoxia [22, 23,53, 60]. This difference of tolerance to water- logging between the two oaks was used as a starting point to identify ... aiming at identifying morphological and physiological responses to root hypoxia that might differ between the two species. Potted seedlings were submitted durin...

Ngày tải lên: 07/08/2014, 16:20

... 929 c  INRA, EDP Sciences, 2006 DOI: 10.1051/forest:2006076 Original article Modelling dominant height growth and site index curves for rebollo oak (Quercus pyrenaica Willd.) Patricia A a * ,IsabelC  ˜  b , ... A dominant height growth model and a site index model were developed for rebollo oak (Quercus pyrenaica Willd.) in northwe...

Ngày tải lên: 07/08/2014, 16:20

... during chilling on dormancy release in FI and TMC seeds of alder and birch. In addition, the effect of priming at 15 ◦ C with or without PEG on the germination re- sponse of FI and TMC seeds without ... online at: c  INRA, EDP Sciences, 2007 www.afs-journal.org DOI: 10.1051/forest:2007015 Original article Germination response of alder and birch seeds to...

Ngày tải lên: 07/08/2014, 16:21

... 831 Ann. For. Sci. 62 (2005) 831836 â INRA, EDP Sciences, 2005 DOI: 10.1051/forest:2005089 Original article Aboveground biomass relationships for mixed ash (Fraxinus excelsior L. and Ulmus glabra Hudson) ... – About 5% of forest area of Friuli Venezia Giulia (Italy) is covered by mixed ash stands. In most cases, these are secondary forest establishe...

Ngày tải lên: 08/08/2014, 00:22

... slightly damaged plots with a remaining basal area ≥ 80% of the original (mean logging intensity = 6 trees ha –1 ). Plots belonging to G2, had a remaining basal area varying between 70 and 79% of the ... large areas. Moreover, matrix models can also pre- dict in a robust way and as reliably as other approaches, stand structure (density, basal area and diameter distribution)...

Ngày tải lên: 08/08/2014, 01:21

... 2004 DOI: 10.1051/forest:2004011 Note Argan (Argania spinosa (L.) Skeels) seed germination under nursery conditions: Effect of cold storage, gibberellic acid and mother-tree genotype Mohamed ALOUANI, ... effect of GA and cold in the case of argan seed germination. From the results of this study, dormancy can be broken using GA or cold s...

Ngày tải lên: 08/08/2014, 01:22

... Growth response of Q. pyrenaica to thinning 245 The results of Ducan’s test also explain the aforementioned different responses to thinning intensities in the two growth intervals (Tab. ... deviation (in bracket) absolute and relative stem diameter increment of Q. pyrenaica trees in unthinned and thinned treatments (C – light thinning; D – moderate thinning; E – heavy th...

Ngày tải lên: 08/08/2014, 01:22

... to environmental factors in two sites differing in their annual rainfall (Sierra de Gata, Spain) M Rico, HA Gallego, G Moreno, I Santa Regina Instituto de Recursos Naturales ... semi-empirical model of stom- atal conductance was used to improve understanding of the sensitivity to water deficit in deciduous oak species, in contr...

Ngày tải lên: 08/08/2014, 18:21

... 19, 65-84 Changes in endogenous cytokinins during flowering induction in Douglas fir: effect of exogenous applications N. Imbault P. Doumas 2 C. Joseph M. Bonnet-Masimbert 2 1 ... flowering in forest trees by gibberellin A4/7 and cultural treatments: a review of the possible mechanisms. For. Ecol. Manage. 19, 65-84 Changes in endogenou...

Ngày tải lên: 09/08/2014, 04:20

... postillumination C0 2 assimilation in response to lightflecks. Plant Physiol. 82, 1063- 1068 Photosynthetic response of poplar leaves under varying quantum flux density J.P. Gaudillère Introduction Leaf ... constant quantum flux density (QFD). But it could be asked how photosynthesis is established in rapidly changing illumination, as in the natura...

Ngày tải lên: 09/08/2014, 04:20

... after a 2 wk adaptation period as the slope of C0 2 concentration over time in the whole chamber (Gaudillere and Mousseau, 1989). During the two 1 st 2 wk, the C0 2 concentration ... where environmental conditions were controlled (22 /15°C day-night, 15 h photoperiod, 50% RH). Whole plant photo- synthesis at 25 0 jlmol-m- 2 s- 1 PPFD...

Ngày tải lên: 09/08/2014, 04:20

... whereas the increase in total cell fatty acids was attributable to the synthesis of new cyto- plasmic material, such as mitochondria. Of particular interest was the marked ... ratio was maintained at a high value and it was possible therefore that the total amount of NTP per unit vol- ume of cytoplasm might be maintained if the total cyto...

Ngày tải lên: 09/08/2014, 04:20