Báo cáo lâm nghiệp:" Needle longevity, shoot growth and branching frequency in relation to site fertility and within-canopy light conditions in Pinus sylvestris" potx
Báo cáo lâm nghiệp:" Needle longevity, shoot growth and branching frequency in relation to site fertility and within-canopy light conditions in Pinus sylvestris" potx
... 195–208 © INRA, EDP Sciences, 2003 DOI: 10.1051/forest:2003012 Original article Needle longevity, shoot growth and branching frequency in relation to site fertility and within-canopy light conditions ... average needle age, shoot length growth, and branching frequency in response to seasonal average integrated quantum flux density (Q int ) were i...
Ngày tải lên: 08/08/2014, 01:21
Báo cáo lâm nghiệp: "Response of shoot growth and gas exchange of Picea abies clones to rain acidity and the addition of ions" ppt
... were obtained for top shoot growth of clones 1011 and 1019, the latter showing lower final lengths (A = 112-136 mm), lower b-values (b = 4.8-5.7) and inflexion points on ... (UIA), Universiteitsplein 1, B-26 10 Wifrijk-Antwerpen, Belgium Introduction The novel forest decline observed in Eu- rope and the U.S.A. may be caused by several factors,...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "Study of the properties of thirteen tropical wood species to improve the prediction of cutting forces in mode B" pptx
... improve the relation that allowed calculating cutting forces involved during machining, and to take into account, more precisely, the influence of wood mate- rial in this relationship. 3.1. Relationship ... forces during wood machining, a factor remains difficult to take into consideration: the influence of wood species. Therefore, the aim of this study is to understand the influ...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo lâm nghiệp: "Evaluation of the growth and health status of selected clone mixtures in comparison with ordinary planting stock" docx
... physiological processes is described in rooted cuttings compared to seedlings, e.g. later onset and lower intensity of dormancy and cold hardiness and earlier flushing in spring (F et al. 2000). ... samples were put into a cooling box in the field and subsequently transported to a laboratory for evalua- tion. In the laboratory the branch bases were put into wate...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "Modelling dominant height growth and site index curves for rebollo oak (Quercus pyrenaica Willd.)" pptx
... classified into different stratums according to altitude. The recognition of these problems in such wide areas, and the increasing interest in using these stands for either direct production (such as wine ... ecologi- cal conditions (stratums and testing data) makes this site index model a good option for classifying site qualities of Q. pyre- naica stands. Figure 7. Site inde...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Relationship between root growth potential and field performance in Aleppo pine" doc
... differences in the growth chamber RGP, with a peak in December (between 7 to 12 new roots longer than one cm) and very low values in November and January for seedlings maintained in mild and cold ... evaluated in needles and starch and soluble sugars in the whole shoot. N = 25 seedlings in a composite sample. 542 A.D. del Campo et al. stock possible. To this end,...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp: "Predicting balsam fir growth reduction caused by spruce budworm using large-scale historical records of defoliation" potx
... of standardized ring width and periodic annual increment in volume, respectively, in order to eliminate the effect of tree ageing and initial tree size on growth loss estimations. Since we tried to ... sum- marized in Table I. 2.2. Sampling procedure The selected PSPs were located and inventoried again during the snow-free periods between 1998 and 2002. The inventory consi...
Ngày tải lên: 08/08/2014, 00:21
Báo cáo lâm nghiệp: "Variability of initial growth, water-use efficiency and carbon isotope discrimination in seedlings of Faidherbia albida (Del.) A. Chev., a multipurpose tree of semi-arid Africa. Provenance and drought effect" doc
... are deeply indebted to J.M. Guehl for having introduced them into the world of carbon isotope discrimination and for helpful discussions and suggestions during the whole ... negative correlation between W and LMR in Quercus petraea and Pinus pinaster, and Virgona et al. [33] reported a similar result in sunflower. LMR could thus be an int...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "How the absolute growth rate of poplar adapts to the light-NO -dosage 3 G.A. Pieter" pot
... 6703 8W Wageningen, The Netherlands Introduction The growth of leaves and internodes on a branch of poplar, grown under constant conditions, proceeds according to growth patterns, ... development of individual leaves and internodes in the linear phase of of nitrate could not sustain a high RGR 50 in growing leaves. Dry matter- (Fig. 1) and...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "The first reaction of soil mite fauna (Acari, Mesostigmata) caused by conversion of Norway spruce stand in the Szklarska Poręba For" potx
... stand Forest site 1 169b pure stand of 111-year-old spruce mixed mountain forest site 2 169b 4-year-old beech stand in a thinned 111-year-old stand mixed mountain forest site 3 169g pure stand ... mountain forest site 4 169b cluster of 8-year-old fir under a 112-year-old spruce stand mixed mountain forest site 5 280d stand of 10-year-old beech mountain forest site 6 179k thinned...
Ngày tải lên: 07/08/2014, 03:22