Báo cáo lâm nghiệp: "Physiology and metabolism of ectomycorrhizae" pptx

... only 75% of the control rates. Thus choice of the fungal partner did affect amino acid uptake rates. Amino acid metabolism Metabolism of these 3 amino acids and a 4th ... and substantially alter pH around the roots. This affects availabi- lity and uptake of many ions (particularly phosphorus). In our lab, we measured uptake of ammonium a...

Ngày tải lên: 09/08/2014, 04:20

... separation of the two malic enzymes and to detect the presence of isoforms. The purification study must continue to evaluate the elution buffer and the purifi- cation of samples ... first steps of purification of these enzymes are presented and dis- cussed. Materials and Methods Oak leaves (Quercus pedonculata) were col- lected in a local...

Ngày tải lên: 09/08/2014, 04:20

... result of changing genera- tions of beech. In Krkonoše Mts. the largest reported tree is silver fi r with 182 cm of dbh and 58 m of height. Total volume of forest stands varies between 500 and ... research on structure and develop- ment of forest stands in national parks of Krkonoše Mts. describes the stand of forest ecosystems before during and after the air pollut...

Ngày tải lên: 07/08/2014, 10:21

... Fifty seedlings of spruce were planted on an experi- mental plot of the area of 200 m 2 , of larch on 255 m 2 , and of pine, beech and sycamore maple on the area of 130 m 2 . e size of one block ... of bareroot and Table 1. Basic characteristics of the bareroot and containerized planting stock of forest tree species planted in autumn 2008 and spring 2009 (w...

Ngày tải lên: 07/08/2014, 10:21

... the case of “Telc” it was the height and thickness of the root collar of sample regenerated individuals selected from within the fencing and outside of it. e basic spatial statistic of the point ... ef- fects of barochory and the zoochoric activities of mice and birds, and finally (3) farther into space toward the edge where beech nuts get only by being carried by b...

Ngày tải lên: 07/08/2014, 10:21

... Productivity and cost of manual felling and cable skidding in central Appalachian hardwood forests. Forest Products Journal, 53: 47–53. ZOBEIRY M., 1994. Forest Inventory (Measurement of Tree and Stand). ... 20 to 60% and the aspects of the slopes were northern. e total volume of production was 1,900 m 3 and the skidding of production was done from the stump area...

Ngày tải lên: 07/08/2014, 10:21

... Journal of Ecology, 84: 167–176. HENDRICKS C.M.A., BIANCHI F.J.J.A., 1995. Root den- sity and root biomass in pure and mixed forest stands of Douglas-fir and Beech. Netherlands Journal of Agricultural ... the temperature of 60°C and weighed to the nearest 0.1 mg. The values of root length and number of root tips were determined using the software Win- Rhizo 2004a ™ . ...

Ngày tải lên: 07/08/2014, 10:22

... Origins of the Portuguese Landrace Despite differences between nuclear and chloroplast DNA markers in modes of inheritance and genetic architecture in the native stand, the SSR affinities of the ... 641 Table I. Identity of Portuguese Landrace samples, their chloroplast DNA (cpDNA) haplotype and their cpDNA and SSR assignment to various regions of the natural distribution of...

Ngày tải lên: 07/08/2014, 16:21

... Insti- tute of Education of Singapore and the French Ministry of Foreign Affairs. Thanks are also expressed to Olivier Crassard and Patrick Durand respectively for their scientific and administrative ... with air and sealed. The bags were stored in darkness for 4 and 6 days (4DD, 6DD) or in the shade for 4 and 6 days (4DS, 6DS). The two other treatments consisted of direct...

Ngày tải lên: 08/08/2014, 00:22

... and biodiversity of ground vegetation and animal life [33]. The effect of affores- tation on the abundance and composition of the ground vege- tation has not been studied extensively in Iceland. ... [4]. The larch stands and the younger birch stand were grazed heathland pas- tures prior to afforestation. The area containing the older birch stand (B2) and the oldest larch stand...

Ngày tải lên: 08/08/2014, 00:22