Báo cáo lâm nghiệp: "Cambioxylophagous fauna of young spruce stands damaged by snow in the Beskids" potx

... gradual. At the end of the growing season, 66% of phloem remained live or in the first stage of wilting. ere is available wood for the invasion of secondary cambiophages in the following growing ... colonized the breaks in particular. e upper and the lower side of the lying breaks-off differ in the intensity of attack and the degree of cover of th...

Ngày tải lên: 07/08/2014, 04:20

... selection using indirect method (9% instead of 11.5% – Tab. IX). Meanwhile, the lower estimate of gain slightly affects the final selection of the clone: in this sample (Tab. X) 4 to 5 of the first ... al. of 3 indirect measures of the modulus of elasticity at the dif- ferent steps leading to the production of normalised speci- mens, by means of the Sylva...

Ngày tải lên: 08/08/2014, 01:22

... between the base of the stem and the base of the crown; III, just below the base of the crown; IV, in the middle of the crown; V, in the upper part of the crown. e infestation density of five ... majority of sites having high intensity of tree infes- tation mainly along the main valley in the region. Lower elevations occurring in the south...

Ngày tải lên: 07/08/2014, 03:22

... and of the mode of inheritance on the power of detection of differentiation. The assignment of markers to sets is also supported by the analysis of variance of allele sizes, which allows the measure- ment ... according to their features: set D, including the dinucleotide SSRs; set T, including the trinu- cleotide SSRs; set C, with the chloroplast SSRs. This allo...

Ngày tải lên: 07/08/2014, 16:20

... left outside the main thermal dynamics. The sensors above the heater may on the other hand be left in a quite indifferent region between the foci of the isothermal ellipses. What could, in fact, be ... recognized the form of the ellipse: the horizontal distance of the temperature sensor from the heating needle gives the segment p = b 2 /a and the distance o...

Ngày tải lên: 07/08/2014, 16:20

... 41] and the various foci and interpretations of the findings of the acidi- fication/liming problems have resulted in very diverse policies, especially in the German states [19]. However, there is ... liming is indi- cated by the lower P-concentrations in C+1andC+2 needles in 2004. Changes in the humus layer after liming may be re- sponsible for it. In a further lim...

Ngày tải lên: 07/08/2014, 16:20

... the scar formation with a displacement of extractives from heartwood to the outer sapwood, thereby reducing wood density in the innermost rings and increasing it in the outward rings. Until the ... significantly in uenced by any of the studied sources of variation. 4. DISCUSSION In spite of the difficulty in identifying ring boundaries and the resulting necessi...

Ngày tải lên: 07/08/2014, 16:20

... and inverse of osmotic potential at full turgor (Ψπ 100 ). The x- and y-coordinates of the first data point of the linear portion of the PV curve corresponded to relative water content at the ... using the Pearson (r) coefficient, and considering the individual values of all seedlings. Linear regressions of osmotic potential at full turgor (Ψπ 100 , MPa) and at th...

Ngày tải lên: 08/08/2014, 00:22

... found at the end of the summer of 1992, with a lower value at the dry site. The soil water stor- age declined bud burst to the end of the summer by 119 mm in the wet ... application of the model, the larger differences between observed and simu- lated conductance in the case of FG can be explained in part by the ove...

Ngày tải lên: 08/08/2014, 18:21

... at the beginning of May and ended in mid-June with the peak at the end of May and beginning of June in 2005. In 2006, the flight activity started later in mid-May and lasted to the beginning of ... of winter shelters were higher. In the Nízký Jeseník Hills, the flight activity started at the beginning of May and ended in mid-June with the peak at...

Ngày tải lên: 07/08/2014, 03:22