Báo cáo lâm nghiệp: "The route of the pollen tube from stigma to ovule in Populus nigra : a new look" docx

... yet. During an investigation of these events, we have examined the pollination pathway, especially the behaviour of the pollen tube from the stigma surface to the ovule. ... Poplars. Theor. Appl. Genet., 47, 141-151. The route of the pollen tube from stigma to ovule in Populus nigra : a new look M. VILLAR, INRA, S...

Ngày tải lên: 09/08/2014, 06:22

... also negative impacts due to decreased ac- cumulation of carbon. From the aspect of the ecosystem approach in the floodplain forest management, attention is also paid (in addition to maintaining ... global climate changes. e area of floodplain forests in southern Moravia is located at the confluence of the Morava and Dyje rivers and covers about 15,000 ha. e...

Ngày tải lên: 07/08/2014, 03:22

... Bohemian-Moravian Upland. Better access of lateral light into the stands growing in the Bohemian-Mora- vian Upland (with underplanting realized in margin- al parts of the stands) than in the Krušné ... Bohemian-Moravian Upland) Linear (Regeneration of small-scale clearings) Linear (Regeneration of large-scale clearings) Linear (Inspection Bohemian-Moravian Upland) Fig...

Ngày tải lên: 07/08/2014, 03:22

... contrary to FP and BV.  e reason is a small size of FP and BV sets and slight invalida- tion of normality contrary to an optimal size of BF, when ANOVA can be used. Furthermore, the data are ... (heterogeneity of soils in FP and in BV) was realized in the same way but a diff erent analysis was used. For the assessment of confi dence intervals for each proper...

Ngày tải lên: 07/08/2014, 10:21

... exposition to intense so- lar radiations may induce high levels of mortality [26]. The mortality of some larvae of T. pityocampa can also have an impact on the survival of the entire batch (group of larvae hatched ... resume their development in spring. In- crease of heat in galleries may have accelerated the develop- ment and allowed larvae to enter winter at mo...

Ngày tải lên: 07/08/2014, 16:20

... of GCA (General Combining Ability) and SCA (Specific Combining Ability) for radiata pine in Australia. De- tails of the Australia-Wide-Diallel program are given in Wu and Matheson [45]. Summary ... method to estimate cambial age of transition from juvenile to mature wood in a study of radiata pine. The age of transition from juvenile to mature wood in radiata...

Ngày tải lên: 07/08/2014, 16:20

... significant due to the inter-annual climate shifting. After the clear-cutting, the concentration of the majority of elements in gravitational solutions dramatically decreased in the upper layers of the ... behaved after the clear- cutting was not the expected one. In the present situation, the hypothesis of an increase in drainage losses was based on: (i)...

Ngày tải lên: 07/08/2014, 16:20

... C. Hoff and S. Rambal fall and leaf quantity [33, 43]. Important then are the timing of rainfall and drought events, the quantity of rainfall, the storage capacity of the soil and quantity and ... relations between the LAI and both climatic and soil factors; (2) understand how the water and carbon balances behave as a function of water availability and LAI; and (3) defin...

Ngày tải lên: 08/08/2014, 01:21

... sets of thermocouples and a thermopile. Axial water flow in the root is calculated for 15-min averages by solving the heat balance equation for the portion of heat transported with mass flow in axial ... by water channels (aquaporins) in the cell -to- cell passage of water flow in roots [7, 45]. Opening and closing of the channels could alter Lpr mainly when the...

Ngày tải lên: 08/08/2014, 01:21

... of the whorls on the main orthotropic stem in J. copaia and to the position of the leaves on the plagiotropic branches in E. falcata. The data hereafter refer to the ... findings of Kuppers et al. (1986) which showed the absence of any role of leaf water status in explaining the after- noon depression of A in a range...

Ngày tải lên: 09/08/2014, 04:20