Báo cáo lâm nghiệp: "Electrophysiological and behavioral responses of Dendroctonus valens to non-host volatiles" pdf
Báo cáo lâm nghiệp: "Electrophysiological and behavioral responses of Dendroctonus valens to non-host volatiles" pdf
... Interruption of Dendroctonus valens by NHVs 271Figure 1. EAG dose -responses of Dendroctonus valens to dilutions of non-host volatiles (NHVs). Mean responses of D. valens to the standardkairomone ... articleElectrophysiological and behavioral responses of Dendroctonus valens to non-host volatilesLong-wa Za,b, Nancy E. Gc, Jiang-hua Sa*aState Key Laboratory of Integrated Management of Pest ... role of Dendroctonus valens and its vectored fungiin the mortality of ponderosa pine, Ph.D. dissertation, University of California, Berkeley, 1985.[12] Paine T.D., Hanlon C.C., Response of Dendroctonus...
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Báo cáo lâm nghiệp: "Physiological and morphological responses of dormant and growing Norway spruce container seedlings to drought after planting" docx
... from –0.96 MPa to –2.22 MPa, indicatingprobably down-regulation of primary photochemistry and theaugmentation of photoprotective mechanisms to avoid overre-duction and photoinhibitory damage ... frozen storageinstead of growing seedlings from the same seedling stock. To achieve this aim, we compared physiological and morpholog-ical responses of dormant and growing seedlings to postplant-ing ... influence of desiccation, rough handling and cold storage on the quality and establishment of Sitka spruceplanting stock, Forestry 63 (1990) 129–141.[6] Eastman P.A.K., Camm E.L., Regulation of photosynthesis...
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Báo cáo lâm nghiệp:" Hydrological and climatic responses of Pinus elliottii var. densa in mesic pine flatwoods Florida, USA" pptx
... growth responses to R and P-PET among sites.We hypothesize that, due to the nature of the sandy soils and the low topographic variation, growth in sites with shallowerwater tables, and thus ... example of P. elliottii var. densa flatwoodsmanagement and restoration. Although decades of fire-suppres-sion in MRSP led to fragmented stands of pine flatwoods,controlled burning and intensive ... encompassing11 686 ha of land and 22.5 km of the Myakka River. The park’s landwas acquired in 1934 and until 1976 a fire-exclusion and suppressionmanagement strategy existed; yet, nearly 85% of the plant...
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Báo cáo lâm nghiệp: "Growth versus storage: responses of Mediterranean oak seedlings to changes in nutrient and water availabilities." ppsx
... two of the above (i, j )and named as trajectory i− j.The effects of treatment and species on biomass, C/N, N and car-bohydrate content of the whole-plant and each part were tested bymeans of ... growth demands quite a constant proportion of carbon and nitrogen. Therefore any factor decreasing theuptake of either carbon or nitrogen would limit plant growth and lead to an excess of the non-limiting ... bothresources are captured and stored. Bryant et al. [6] tried to explain changes in carbon and nitrogen allocation to differentplant functions in response to variations of the inner carbon-nutrient...
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Báo cáo lâm nghiệp: "Growth and physiological state of beech seedlings grown in a nursery in different light conditions" docx
... conditions.During photoinhibition the photosynthetic ca-pacity is reduced on the level of the light phase of photosynthesis, i.e. in processes of the capture and transmission of radiant energy ... all acceptors and reaction centres of the photosystem are fi lled with electrons very quickly (100–200 ms) and fl uorescence increases to the maximum value (Fm). e activation of photochemical ... in a shaded and unshaded plastic greenhouse. The objective was to compare seedling growth and the function of assimilatory organs and to determine their reactions after transfer to different...
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Báo cáo lâm nghiệp: "reproductive and morphometric characteristics of wild boar (Sus scrofa) in the Czech republic" pot
... the calcaneal joint to the tip of the hoof, ear length (LA) from the root of the ear to the tip, and height at the withers (AC) as the distance from the tip of the fore leg to the highest point ... of 200–1,800 m a.s.l., with forest coverage of 60% and an agricul-tural landscape (with an intensive type of agricul-ture) constituting only 10% of the area, similar to the Doupov area and ... proportion of piglets farrowed in March and April in the Kostelec area (up to 80%), in con-trast to the Doupov area (55%) and Šumava (46%), may again signify the influence of the area with regard to...
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Báo cáo lâm nghiệp: "rowth and health state of silver fir (Abies alba Mill.) in the ridge area of the Jizerské hory Mts" docx
... limestone and finely ground amphibolite were added into the soil (B et al. 2005).(Note: Dolomitic limestone of Horní Lánov origin contained 21.5% Ca and 11.3% Mg and consisted of these ... nutrient release and subsequent influence upon soil acidity were ex-pected to be delayed compared to limestone.Health state of plantings – the occurrence of the damage symptoms and mortality – ... K), than that of Bergmann (0.5% K).CONCLUSIONSBased on the results of the investigations into the development of the silver fir plantations and the dy-namics, of some climatic factors, these...
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Báo cáo lâm nghiệp: "Spatial and temporal diversity of wood decomposer communities in different forest stands, determined by ITS rDNA targeted TGGE" potx
... mM KCl), 1µLofdNTP(10mM),1µL of each primer(100 µM), 0.5 µL of Taq-polymerase (Fastart, Roche Diagnostic),2 µLofMgCl2,1µL of GC-rich solution (Sigma), 2 µLofBSA(3%) and 2 µL of genomic DNA ... Quantity One software (Biorad) with a po-sition tolerance of 2 mm, giving a maximum of 50 detectable species.Bands with intensities less than 5% of the intensity of the dominantband were excluded ... Intermediate valueswere found in the oak, beech and Douglas-fir stands (12.6 and 0.937; 12.3 and 0.920; 12.2 and 0.934, respectively).Twenty of the selected bands of the more common specieswere sequenced....
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Báo cáo lâm nghiệp: "Floristic and structural recovery of a laurel forest community after clear-cutting: A 60 years chronosequence on La Palma (Canary Islands)" ppt
... Analysis of some of the canopy variables of the plots. Axis I eigenvalue was 0.83 (83% of the cumulativepercentage of variance), and axis II eigenvalue was 0.14 (97% of the cumulative percentage of ... recovery of the stand oncethese traditional practices are abandoned due to the progres-sive reduction of demand for these products [36]. Until then,the traditional management of the stand is ... is essential to the establish-ment and maintenance of a society using resources, products and energy [23]. The impact of harvesting on forest structure and biodiversity is a topic of continuous...
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Báo cáo lâm nghiệp: "Seasonal and intraspecific variation of frost tolerance in leaves of three Canarian laurel forest tree species" doc
... U., Theratio of variable to maximum chlorophyll fluorescence from photo-system II, measured in leaves at ambient temperature and at 77K,as an indicator of the photon yield of photosynthesis, ... studysite: one dry and warm season from June to September and anotherwet and colder season from October to May [9]. To assess the possibleseasonal variation in the degree of frost tolerance, leaves ... mean of six measurements with their standard deviations.Table II. Average values and standard deviations of the Fv/Fm para-meter in response to freezing temperatures in sun and shade leaves of Persea...
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