Báo cáo lâm nghiệp: "experiment on the effect of girdling and gibberellin application on flowering induction of 12 yr old seedlings of Douglas fir and Norway spruce" pptx
Báo cáo lâm nghiệp: "experiment on the effect of girdling and gibberellin application on flowering induction of 12 yr old seedlings of Douglas fir and Norway spruce" pptx
... experiment on the effect of girdling and gibberellin application on flowering induction of 12 yr old seedlings of Douglas fir and Norway spruceM. Bonnet-Masimbertwith the technical ... .ReferencesBonnet-Masimbert M. (1987) Preliminary results on gibberellin induction of flowering of seedlings and cuttings of Norway spruce indicate somecarry-over effects. For. ... the beginning of treatments. The length of the terminal and 2 subterminalshoots were measured in the fall on each se-lected branch and their total number of maleand...
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Báo cáo lâm nghiệp: "Findings from the application of coal combustion by-products (CCB) for forest reclamation on spoil banks of the North Bohemian Brown Coal Basin" pdf
... result of CCB application were observed in the content of organic matters and total nitrogen, degree of base cation saturation, content of phospho-rus and potassium. On the contrary, cation exchange ... L. in the treatment with the application of CCBFig. 5. Tilia cordata Mill. and Pinus nigra Arn. in the treatment with the application of CCBFig. 6. Deformations of the root system in the used ... in the stand composition) from each taxon used for the reforestation of the state of reclamation “A” and “B” Fig. 3. Fraxinus excelsior L. in the treatment with the application of CCBFig....
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Báo cáo lâm nghiệp: "Changes in the mycorrhizal status of some mountain spruce forests" potx
... correlations were evaluated. Except for the correlations mentioned in Discussion any other relationships cannot be proved. One of the reason is that the investigation period 2004–2006 is rather ... periods, the roots and mycorrhizae were sampled and evaluated according to the same standard method (P, S 2006).Assessment of defoliationIn the study plots, the health condition of ... published the results received from permanent trial plots in the Krkonoše Mts. showing that the first signs of spruce stands de-struction arose after 1982, and in the first half of the 1980s the...
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Báo cáo lâm nghiệp: "Contribution to the knowledge of Clethrionomys glareolus populations in forests of managed landscape in Southern Moravia (Czech Republic)" pot
... 1999) and also in the other types of low altitude forests (e.g. Z 1973). In all of them Cg is one of the dominant species. In our study we concentrated on the study of the population of this ... 2005–2006. The only effective prevention against damage seems to be the reliable prediction of population densities by pest species monitoring and early plan-tation protection.DISCUSSIONDuring the ... after the Supported by the Ministry of Education, Youth and Sports of the Czech Republic, Project No. MSM 6215648902.Contribution to the knowledge of Clethrionomys glareolus populations in...
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Báo cáo lâm nghiệp: "Contribution to the knowledge of Apodemus sylvaticus populations in forests of the managed landscape of southern Moravia (Czech Republic)" potx
... population abundance is based on the combination of functional and numerical response of all occurring species of predators (K 1985). Nevertheless, under con-ditions with the diverse and stable ... evaluated on ten plots each of 0.5 m2 and the average amount of mast was deter-mined. e plots were selected randomly in the oak stand and the number of acorns was determined on each of the plots. ... dynamics of As is described in larger forest complexes of southern Moravia depending on the biotope and food supply including the response of the population to the crop of acorns and small-seed...
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Báo cáo lâm nghiệp: "Changes in the abundance of Melolontha hippocastani" ppsx
... Protection, 48: 956–965. (in Polish)Š M. (2006): Distribution of tribes of cockchafers of the genus Melolontha in forests of the Czech Republic and the dependence of their swarming on temperature. ... abun-dance of populations of cockchafers of the genus Melolontha caught in light traps and we discov-ered that in general the population densities of the strong M. hippocastani Fabr. and M. melolontha ... 0002070201, and by the Ministry of Education, Youth and Sports of the Czech Republic, Project No. MSM 6215648902. Changes in the abundance of Melolontha hippocastani Fabr. and Melolontha melolontha...
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Báo cáo lâm nghiệp: "Which factors explain lepidopteran larvae variance in seasonal guilds on some oaks" pptx
... by the poor quality of leaves and the increasing accumulation of tannin as reported by F (1970) and also F et al. (2004). Because of a lack of information about the quality of food ... the year of study along A1 and host specificity along A2 were important in the summer feeder guild; and adaptation to lower quality of food along A1 and host specificity along A2 for the autumn ... externally. Another kind of adaptation is feeding on understorey plants or on the bottom part of the canopy. F et al. (2004) found that the percentage of dry mass foliage condenzed tannins...
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Báo cáo lâm nghiệp: "Nutrients in the aboveground biomass of substitute tree species stand with respect to thinning – blue spruce (Picea pungens Engelm.)" doc
... equations. During the period of inves-tigation (age of 12 21 years) the total biomass of investigated stand increased from 6.1 to 56.2 thou-sand kg of dry matter per hectare on the control ... 5 kg of P, 22 kg of K, 26 kg of Ca and 4 kg of Mg. The removal of biomass in areas previously degraded by acid deposition may result in the deficiency of Ca and Mg because of their low content ... deficiency of Ca and Mg be-cause of their low content in forest soil. On the other hand, thinning supported the faster growth of trees left after thinning and consequently faster biomass and nutrient...
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Báo cáo lâm nghiệp: "SHORT COMMUNICATION The use of cotyledon proteins to assess the genetic diversity in sweet holm oak" potx
... polymorphic bands in all the trees evaluated. On the other hand, the understanding of the genetic diversity presents in a species and the distribution of this variation among populations is important ... (upper), zone D (medium) and zone E (lower)AB14 kDa20 kDa20 kDa30 kDa30 kDa45 kDa45 kDa30 kDa30 kDa20 kDa20 kDa14 kDaZone EZone DZone DZone AZone BZone CZone DZone E530 ... polymorphism level, simple genetic control, en-vironmental independence, and the economy, easi-ness and expeditiousness of their analysis. Although the role of these proteins in forest species...
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Báo cáo lâm nghiệp: "Relationships between the parameters of aboveground parts and the parameters of root plates in Norway spruce with respect to soil drainage" docx
... exceeded the circumference of the crown. is au-thor reported that the width of spruce root systems in the Hronec locality was wider by 94 cm than the width of the crown. On the other hand, K ... years; and that the root systems of trees at the age of 80 years were the same as those 120 years old. According to our results, the correlation between the aboveground parameters and the thickness ... author conducted his research in diff erent growing conditions, because the root plate width of spruce trees (analyzed by Kodrík) exceeded the circumference of the tree crown. On the other hand,...
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