Báo cáo lâm nghiệp: " The role of glutamine synthetase, glutamate synthase and glutamate dehydrogenase in ammonia assimilation by the mycorrhizal fungus Pisolithus tinctorius" ppt

... for the modelling of autumn discoloration.  e length of the vegetation period was then assessed as the diff erence between the midpoints of autumn discoloration and spring fl ushing. As the ... 2-years- old seedlings of 32 provenances covering practical- ly the whole distribution range of beech in Europe, using the RCB design (three adjacent blocks). In 2007 (...

Ngày tải lên: 07/08/2014, 10:21

... The role of glutamine synthetase, glutamate synthase and glutamate dehydrogenase in ammonia assimilation by the mycorrhizal fungus Pisolithus tinctorius J.L. Kershaw G.R. ... inhi- bition by MSX. The increase in the glutamate pool appeared to indicate assi- milation of ammonia into glutamate by GDH activity. Inhibition of gl...

Ngày tải lên: 09/08/2014, 04:20

... parts of the stands) than in the Krušné hory Mts. (with underplanting realized inside the stands) was also a reason for the relative failure of underplanting in the existing spruce stands in the ... smoothing of total heights and increments of underplanting in the current Norway spruce stands is considerably affected by the high degree of area stockin...

Ngày tải lên: 07/08/2014, 03:22

... selection thinnings, but on stand-related thinning regimes. This partly explains the linear relation of ∆g and DBH per treatment. The DBH-range of the stands available has to be regarded as well. The integration ... this by using the self-thinning rule (Rdi, Eq. (3)) formulated by Reineke [49]. For parameters of the self-thinning rule, we used those suggested by Dhôt...

Ngày tải lên: 07/08/2014, 16:20

... vapour of infested seedlings was reduced with respect to controls, both in mined and in still green portions of attacked leaves. In July and August, the hydraulic resistance of infested seedlings ... three-year old seedlings were used in the present study, so that no information can be inferred from our data about the risk of mortality associated with the infestati...

Ngày tải lên: 08/08/2014, 00:21

... (Austrian black pine) plantations, despite of the large diffusion and importance of these stands in many regions of southern Europe. During the first half of 20th century about 100 000 ha in the Apennines ... for the supremacy of this species in the understorey environment of Pinus nigra stands [12, 23, 45]. The presence of Castanea sativa and Picea abies s...

Ngày tải lên: 08/08/2014, 00:22

... combi- nation of eliminating auto-allelopathy and non-inhibition of germination by fire factors. On the other hand, from the meth- odological point of view, it can be concluded that the germina- tion of ... Quercus germination 209 during the first weeks, followed by smaller peaks up to the 45th week in the case of the Smoke treatment and up to the 41st week...

Ngày tải lên: 08/08/2014, 00:22

... selected. The intensity of thinning can be indicated by the standardized stand density index (SSDI), which is the quotient between the SDI of the thinned stand and the SDI of the control stand [37] ... again during the last thinning. In the T2, 258 crop trees were chosen in the first thinning, and only 62% of these trees were chosen again during the last...

Ngày tải lên: 07/08/2014, 16:20

... Hokanson S.C., Isebrands J.G., Jensen R.J., Hancock J.F., Isozyme variation in oaks of the Apostle islands in Wisconsin: genetic struc- ture and levels of inbreeding in Quercus rubra and Q. ellipsoidalis (Fagaceae), ... all traits including population and provenance effect using the following model: Y ijk = µ + P i + B ij + E ijk . Where Y ijk : the phenotypic value of...

Ngày tải lên: 07/08/2014, 16:21

... peeling lathes in real time. One of the most comprehensive study was carried out by Thibaut [14] for the theoretical understanding and modelling of the process. Marchal et Negri [11] and Décès-Petit ... source and in the direction of the first natural vibration mode of the knife. All these conclusions validate the use of this technique to characterize lathe...

Ngày tải lên: 07/08/2014, 16:21