Báo cáo khoa học: " quality of Douglas fir (Pseudotsuga menziesii (Mirb) Franco) from three stands in the Netherlands*" pptx

... Approximately 10% of the timber was ranked as quality class B (good quality) ,

Ngày tải lên: 08/08/2014, 18:21

... Conclusion The osmotic concentration of xylem sap is clearly a poor marker of vigor in Douglas fir seedlings except in the case of freshly frozen plants. In the latter ... obtained using either the presence or the area of peaks. Fig. 1 shows a ca- nonical plot of field survival using peak fre- quency data. In this case, the...

Ngày tải lên: 09/08/2014, 02:21

... (1987) Test of the first-on, first -in pollination hypothesis in coastal Douglas fir. Can J For Res 17, 63-68 quencies especially when the maximal dis- tance of pollination was ... distance from the focus to the point of the ellipse circumference in the corresponding direc- tion (segment OA’ in fig 1). The relative length of segm...

Ngày tải lên: 08/08/2014, 19:21

... [29–32]. Taking these findings together, we suggest that the R69L mutant of IF1 allows premature subunit joining by either failing to discriminate between certain TIR elements in mRNA, or inducing a ... 5¢-side of the processing stem, gave rise to rRNA with the majority of termini in the mature form, whereas pD3, with a mutation on the 3¢-side, gave rise rRNA with the maj...

Ngày tải lên: 06/03/2014, 00:21

... the peanut agglutinin staining in the developing nervous system documented by D’Amico and Jacobs [8] could not be confirmed in our in situ hybridization study. The comprehensive testing of all core-1 ... mRNA, in the amnioserosa and also in salivary glands. The amnio- serosa separates two epithelial layers, the lateral and the dorsal epidermis until resorption of t...

Ngày tải lên: 23/03/2014, 15:20

... house Degree of taking instructions from owner § Foot disinfectant at the entrance of the building Frequency of renewing the disinfectant ∥ Wearing separated boots at each building On the farm Off ... around (within 1 km) in other cases. The question defined disinfection as practicing entire places related to the farm, such as an entrance to the farm and near...

Ngày tải lên: 07/08/2014, 20:23

... variation of cutting lines. Cutting line combinations were generated by varying the coordinates of each edging and trimming line between predetermined limits." These limits, ... value from a given flitch. In the following extract, the term ’trimming’ is equivalent to ’docking’; and ’cutting-line combinations’ refers to the com- binations o...

Ngày tải lên: 08/08/2014, 19:21

... lie in the scale of observations, ie small plots in the present study versus whole stands in the literature. To date, the biological control of D micans is still rather ... still invading the stand, and that its spread in space involves most of the popu- lation which would otherwise have to face local variations in prey density....

Ngày tải lên: 08/08/2014, 19:21

... discharge from fish ponds is causing pollution of canals and rivers harming the quality of water used for household purposes and threatening the future of the aquaculture industry itself. There ... of the farmers (including both fish and rice farmers) stating that water quality is bad. There are only 5% of fishpond holders having settling ponds, 12 % of them pra...

Ngày tải lên: 21/06/2014, 04:20

... outplanting using morphological and PCR/RFLP of nuclear rDNA spacers. The compari- son of the mycorrhizal status of Douglas fir cuttings at the end of the nursery phase and two years after outplanting ... sampled in the nursery.It is difficult to find an explanation for these difficulties of amplification: a change in the tannin composition of the host tissue...

Ngày tải lên: 30/06/2014, 05:04