Báo cáo lâm nghiệp: "The role of Hylastes cunicularius Erichson (Coleoptera: Scolytidae) in transferring uropodine mites in a mountain spruce forest" pptx
Báo cáo lâm nghiệp: "The role of Hylastes cunicularius Erichson (Coleoptera: Scolytidae) in transferring uropodine mites in a mountain spruce forest" pptx
... importance of the passive transfer of uropo- dine mites assisted by H. cunicularius cannot be overlooked in mountain spruce forests in the Tatra Mountains and, possibly in other mountain areas in ... e role of Hylastes cunicularius Erichson (Coleoptera: Scolytidae) in transferring uropodine mites in a mountain spruce forest B. K,...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: " The role of glutamine synthetase, glutamate synthase and glutamate dehydrogenase in ammonia assimilation by the mycorrhizal fungus Pisolithus tinctorius" ppt
... there was no incorporation of ammonia into glutamate Ammonia was assimilated primarily into the amide of glutamine by the activity of GS, and transferred to glutamate-amino by ... a lag in GS inhi- bition by MSX. The increase in the glutamate pool appeared to indicate assi- milation of ammonia into glutamate by GDH activity. Inhibition of...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "The effects of transplanting stress on photosynthesis, stomatal conductance and leaf water potential in Cedrus atlantica Manetti seedlings: role of root regeneration" pdf
... seedlings, a marked and parallel decline in both C0 2 assimila- tion and stomatal conductance occurred from day 0 to day 9 after transplanting (Fig. 1a and b); afterwards ... transplanted plants was accompa- nied by an almost constant ci (Fig. 2), thus indicating that, despite the parallel evolu- tion of A and gs, the changes in Awere ma...
Ngày tải lên: 09/08/2014, 04:20
Báo cáo lâm nghiệp: "The results of manipulated experiments with inoculation of Ips typographus (L., 1758) to spruce trees under various levels" potx
... envi- ronment and later transported to lab. After several days, the number of individuals was enough high to establish artificial rearing. Laboratory rearing of I. typographus. e rear- ing cages were ... 9–15. JAKUŠ R., 1998. Types of bark beetle (Coleoptera: Scolytidae) infestation in spruce forest stands a ected by air pollution, bark beetle outbreak and honey fungus (A...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "The influence of irradiation on the behaviour and reproduction success of eight toothed bark beetle Ips typographus (Coleoptera: Scolytidae)" doc
... fewer larvae hatched than in control treatments. It would seem that the irradiated males reached a lower reproductive rate than the control males. n ȱ=ȱ5 a a a a a a a a a a a a a a a 0 2 4 6 8 10 12 14 16 Galleries ... parameters in irradiated and control treatments (mean value per log ± standard devia- tion). e bars flagged with different letters are significantly diff...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "The use of silica sand in micropropagation of woods" pot
... 1999). Paradoxically, in agar media it grows best if there is manifest attenuation and acidification as a result of hydrolysis of the agar. Overall, the degree of hydroly- sis of agar and the characteristics ... 4.5. RESULTS Comparing cultures in sand and in agar After the completion of cultivation, it was de- termined that when using sand, the starting pH of 5.8 remaine...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "The effect of point application of fertilizers on the soil environment of spread line windrows in the Krušné hory Mts" docx
... (P et al. 2004). It is to suppose that the aerial application of surface liming may be one of the causes of imbalances in the availability of the studied bases. It mainly a ected natural processes ... ac- cording to characteristic absorbances in pyrophos- phate. Carbon contained in humic acids (hereinafter C-HA) and carbon contained in fulvic acids (herein- after C-F...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "The proposal of biotic hazard zones in selected spruce dominated regions in Slovakia" pptx
... 236–242 ble 3). e main part has a semi-arch shape and it spreads in the surroundings of the Oravská kotlina and adjacent lower massifs of Skorušina, Oravská Magura and Podbeskydská vrchovina Mts. The ... from spreading to zone B. We also recommend the rests of non-infested stands to re- main as a source of attractive material on the margins of the A zone. e allocation...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: "The influence of selected factors on energy requirements for plain milling of beech wood" ppsx
... most intensive above 30 ms –1 ; an increase in the value of the rake angle causes a decrease in cutting input. So, with regard to the acquired results of cutting input, in plain milling it ... v f , and on the tool angular geometry of a milling machine in the process of plain milling. Another goal of the experiment was the determi- nation of bulk density of...
Ngày tải lên: 07/08/2014, 03:22
Báo cáo lâm nghiệp: " The response of weevil communities (Coleoptera: Curculionoidea) to the altitudinal zones of beech stands" ppt
... explained more variability than the canonical axis in all cases and the explanatory effect of each AZ was significant (P ≤ 0.001). Explanation by the particular axes for all investigated AZ was ... axis (axis 1) explained 26.1%, axis 2 explained 68.5% and axis 3 explained 65.8% of total variability in the species data. 9.4% of total variability in the species data was explaine...
Ngày tải lên: 07/08/2014, 03:22