Báo cáo lâm nghiệp: "Field studies of leaf gas exchanges (Elaeis guineensis Jacq )" pdf
Báo cáo lâm nghiệp: "Field studies of leaf gas exchanges (Elaeis guineensis Jacq.)" pdf
... of carbon diox- ide uptake with respect to water loss. A usf. J. Plant Physiol. 7, 3i 5-327 Field studies of leaf gas exchanges in oil palm tree (Elaeis guineensis Jacq. ) E. ... s6cheresse chez le pal- mier a huile (Elaeis guineensis Jacq. ) Ph.D. Thesis, Université Paris VII, France Bolle-Jones E.W. (1968) Variations of chloro- phy...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effect of different vegetation" docx
... analysed in groups of four, which resulted in two values per experimental treatment. 2.6. Leaf gas exchange and leaf nitrogen content Leaf gas exchange was measured during the third week of August in ... 10.1051/forest:2007005 Original article Growth, allocation and leaf gas exchanges of hybrid poplar plants in their establishment phase on previously forested sites: effec...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Effect of leaf biomass and phenological structure of the canopy on plot growth in a deciduous hardwood forest in northern Japan" pot
... thinned plots (HT and LT), leaf biomass was reduced considerably by thinning in 1984. LT had 85.0% of the leaf biomass of UT, whereas HT had 55.3% of the leaf biomass of UT. This was similar to ... effects of leaf biomass and BA on gross growth because leaf biomass was estimated indepen- dently of BA, and changes in leaf biomass differed from those in BA, corresponding t...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Field trials of potential attractants and inhibitors for pine shoot beetles in the Yunnan province, China" pps
... in combination with non-host volatiles (Fig. 1). Seven of the ten bundles in each of the treatments with verbenone had no sign of beetle attack. Of the attacked bundles in the 2 treatments with verbenone, ... attractiveness of the YB lures may be in the late spring-early summer, when the beetles are dispersing to the shoots. Our results and the profiles of monoterpene composi- tio...
Ngày tải lên: 08/08/2014, 00:21
Báo cáo lâm nghiệp: "Field performance of Pinus pinea and P. halepensis seedlings inoculated with Rhizopogon spp. and outplanted in formerly arable land Javier" ppsx
... full recovery of seedlings could be related with the height of com- peting weeds. Nevertheless, more studies are needed to deter- mine the usefulness and possibilities of this simple way of esti- mating ... Parladé J., Pera J., Álvarez I.F., Inoculation of containerized Pseu- dotsuga menziesii and Pinus pinaster seedlings with spores of five species of ectomycorrhizal fungi, M...
Ngày tải lên: 08/08/2014, 01:22
Báo cáo lâm nghiệp: "Biochemical aspects of inorganic nitrogen assimilation by woody plants" pdf
... little effect on the localization of assimilation. However, studies of the distribution of nitrate reductase activity (NRA) between the roots and shoots of tropical and sub- tropical ... reductase activities are those characteristic of forest margins and gaps and early stages of forest succes- sion. Previous studies of herbaceous and woody spe...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "Genetic variation of Prunus avium in susceptibility to cherry leaf spot (Blumeriella jaapii) in spatially heterogeneous infected seed orchards" docx
... spatial hetero- geneity, which can implicate a violation of the assumption of residual independence of the analysis of variance. Residuals of each variable after subtracting the clone effects were ... suspected, since the infection of this disease occurs through stomata in early spring. Bud burst explained some of the variation in leaf spot incidence (17–65% of the leaf spo...
Ngày tải lên: 07/08/2014, 16:20
Báo cáo lâm nghiệp: "Effects of resource availability on condensed tannins and nitrogen in two Quercus species differing in leaf life span" doc
... Quercus 441 Tabl e I. Results of ANOVA analysis for the effects of light, water and species on leaf CT, N and growth under a fixed level of nutrients (N–). The sources of variation were light levels ... of carbon-based secondary compounds has been related to the availability of resources both from an evolutionary [15] and from a phenotypic point of view [7, 24, 34]. From a pheno...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp: "Field effect of P fertilization on N2 fixation rate of Ulex europaeus" doc
... de Lavaissière C., Trichet P., High rates of N 2 -fixation of Ulex species in the understory of Maritime pine stands (Pinus pinaster) and potential effect of P-fertilisation, Can. J. For. Res. 35 (2005) ... gorse %Ndfa, determined using the 15 N natural abundance method. One of the prerequisites of this method is the existence of a significant difference between the 15 N/ 14 N ratio...
Ngày tải lên: 07/08/2014, 16:21
Báo cáo lâm nghiệp: "A comparison of two modelling studies of environmental effects on forest carbon stocks across Europe" ppsx
... the effect of many more variables e.g. nitrogen deposition, than the ecosystem model which allowed a more detailed assessment of the relative importance of the variables and of source of uncertainty. Characteristics ... As the strengths of each model correspond to relative weaknesses in the other, we feel that it is may be best to combine models of widely different levels of c...
Ngày tải lên: 08/08/2014, 00:22