Báo cáo lâm nghiệp: "Electrophysiological and behavioral responses of Dendroctonus valens to non-host volatiles" pdf

... Interruption of Dendroctonus valens by NHVs 271 Figure 1. EAG dose -responses of Dendroctonus valens to dilutions of non-host volatiles (NHVs). Mean responses of D. valens to the standard kairomone ... article Electrophysiological and behavioral responses of Dendroctonus valens to non-host volatiles Long-wa Z a,b , Nancy E. G c , Jiang-hua...

Ngày tải lên: 07/08/2014, 16:20

... from –0.96 MPa to –2.22 MPa, indicating probably down-regulation of primary photochemistry and the augmentation of photoprotective mechanisms to avoid overre- duction and photoinhibitory damage ... frozen storage instead of growing seedlings from the same seedling stock. To achieve this aim, we compared physiological and morpholog- ical responses of dormant and growing...

Ngày tải lên: 08/08/2014, 00:21

... 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 shallower water tables, and thus ... example of P. elliottii var. densa flatwoods management and restoration. Although decades of fire-suppres- sion in MRSP led to fragmented stands of pine flatwoods, controlled...

Ngày tải lên: 08/08/2014, 01:21

... 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 by means of ... growth demands quite a constant proportion of carbon and nitrogen. Therefore any factor decreasing the uptake of either carbon or nitrogen would limit plant growth and lead t...

Ngày tải lên: 07/08/2014, 16:20

... 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 activati...

Ngày tải lên: 07/08/2014, 10:21

... 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...

Ngày tải lên: 07/08/2014, 10:21

... 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...

Ngày tải lên: 07/08/2014, 10:22

... mM KCl), 1µLofdNTP(10mM),1µL of each primer (100 µM), 0.5 µL of Taq-polymerase (Fastart, Roche Diagnostic), 2 µLofMgCl 2 ,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 dominant...

Ngày tải lên: 07/08/2014, 16:20

... Analysis of some of the canopy variables of the plots. Axis I eigenvalue was 0.83 (83% of the cumulative percentage of variance), and axis II eigenvalue was 0.14 (97% of the cumulative percentage of ... recovery of the stand once these traditional practices are abandoned due to the progres- sive reduction of demand for these products [36]. Until then, the traditional man...

Ngày tải lên: 07/08/2014, 16:20

... U., The ratio 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, ... study site: one dry and warm season from June to September and another wet and colder season from October to May [9]. To assess the possible seasonal variation in the degree...

Ngày tải lên: 08/08/2014, 00:22