Báo cáo lâm nghiệp: "Interactive effects of irradiance and water availability on the photosynthetic performance of Picea sitchensis seedlings: implications for seedling establishment under different management practices" ppt

... 10.1051/forest:2005037 Original article Interactive effects of irradiance and water availability on the photosynthetic performance of Picea sitchensis seedlings: implications for seedling establishment ... 2005) Abstract – The impact of water availability on the photosynthetic performance of three year old, commercially obtained, Sitka spr...

Ngày tải lên: 08/08/2014, 00:22

... vertical and horizontal bar indi- cates the standard error of the mean. Effects of phosphorus and light on early growth of maritime pine 577 density (PPFD) at the top of the seedlings was 120–180 and ... Cheaïb et al. demonstrated the importance of interactive effects of nitrogen and light on regulating the physiology and growth of seedlings. For...

Ngày tải lên: 08/08/2014, 00:22

... level, but levels of the other forms of phenolic acids increased; levels of F by 70% and levels of CWE by 25% (Fig. 1). After 24 h of WF treatment a decline in the contents of total phenolics ... Stilbenes and resin acids in relation to the penetra- tion of Heterobasidion annosum through the bark of Picea abies. European Journal of Forest Pathology, 22: 95...

Ngày tải lên: 07/08/2014, 10:21

... exam- ple of the predictions, obtained for one tree of stand 34. A com- parison between Figures 4 and 6 revealed the improvement made by adding the random parameters (here the whorl and tree effects, ... maximise the range of stem heights, ages and diameters to ensure, as far as possible, stability of the model. Two samples were collected: the first one for t...

Ngày tải lên: 08/08/2014, 01:22

... constant root water sta- tus conditions. Clearly, the mechanisms of stomatal response to changes in gL deserve further study, and integration of both hydraulic and hormonal ... under drought conditions. The rea- son for this damage is that both high water loss and soil drought induce leaf water deficits. This results from the mechanis...

Ngày tải lên: 08/08/2014, 18:21

... types of disease-related vari- ables were studied, contrasting results were obtained for the effects of drought on the incidence of disease (related to the frequency of infection) and on the severity ... impact of a water shortage on the susceptibility of sev- eral oak species to A. gallica and A. mellea. Oak seedlings inoculated by A. mellea and watered w...

Ngày tải lên: 07/08/2014, 16:20

... δ 13 C, stable carbon isotope composition. 1. INTRODUCTION Application of fertiliser often increases the growth of Pinus pinaster Ait. and other conifers [24, 38]. The mass and area of foliage increases ... photo- synthesis and Rubisco concentration. Most studies relating N, P and K nutrition to photosynthesis and Rubisco have focussed on a handful of well-studied herb...

Ngày tải lên: 08/08/2014, 00:21

... petraea. The fraction of seedlings affected by these Original article Interactive effects of waterlogging and irradiance on the photosynthetic performance of seedlings from three ... in non-photochemical quenching in the for- mer. DISCUSSION Effects of irradiance on the photosynthetic performance of leaves of the three species Seed...

Ngày tải lên: 08/08/2014, 18:21

... & Bormann F.H. (1986) Effects of ambient ozone on the produc- tivity of Populus tremuloides Michx. grown under field conditions. Can. J. For. Res. 16, 47- 55

Ngày tải lên: 09/08/2014, 04:20

... nutrient status of the alder as a precondition of positive influence on forest soil, (3) to verify the influence of localized application of basic amendments on the growth performance of speckled ... concentration. Ac- cording to provisional criteria for the assessment of foliar content published by K and V  B (1995), the concentration of N...

Ngày tải lên: 07/08/2014, 04:20