Báo cáo lâm nghiệp: "Growth and physiological state of beech seedlings grown in a nursery in different light conditions" docx

... to a gap was still lower after 30 days than in the leaves of plants left in the shade and in control seedlings growing in the gap. Photoinhibition in beech seedlings grown in the shade and ... weight and volume of shoots and root systems than seedlings grown in the shade. A higher number of leaves, larger total leaf area and higher dry matter...

Ngày tải lên: 07/08/2014, 10:21

... beginning of autumn. e height growth was evalu- ated according to the parameters of all living fir indi- viduals in 2007 and according to 20% of the highest individuals to avoid an undesirable ... parameters in the planting variants and blocks were tested using t-test, confidence intervals, and two-factor analysis of variance ANOVA (M, M 2002). RESULTS AND DIS...

Ngày tải lên: 07/08/2014, 10:22

... 10.1051/forest:2003009 Original article Growth and biomass partitioning of Fagus sylvatica L. and Quercus robur L. seedlings in response to shading and small changes in the R/FR-ratio of radiation Christian Ammer* Lehrstuhl ... order branch biomass with increasing light intensity was found by Cornelissen [12] for Castanopsis fargesii and by Wiebel et al. [53] for Garcinia...

Ngày tải lên: 08/08/2014, 01:21

... “Woody Caatinga” [36] showing as dominant botanical families: Mimosaceae, Caesalpiniaceae, Fabaceae and Bignoniaceae [12]. In 1993 two accidental burns reached about 90% of the ecological reserve, ... high infiltration rate and low levels of organic matter [12]. The mean tem- perature in a year is 26–29 °C. An area of 1.08 hectare was cleared of Carrasco plants and prepare...

Ngày tải lên: 08/08/2014, 01:22

... at pH 4.8 and a relationship between soil acid- ification and increasing solubility of toxic elements such as manganese and aluminium. In addition, variations in soil pH ... element availability in the soil and increase its pH. They also induce variations in cation content within different organs, eg, significant increases in calcium...

Ngày tải lên: 08/08/2014, 18:22

... that higher water supplies ap- parently imposed to Q. ilex [10]. Regarding Q. faginea,thein- creased of C/N with watering was paralleled by [N] decline and by N pool increase, showing that a larger ... by means of a two-way analysis of variance (ANOVA). In addition, treat- ment effects on whole-plant traits were further analysed within each species using a one-way ANOVA. Differe...

Ngày tải lên: 07/08/2014, 16:20

... species’ basal area to the total stand basal area increases ingrowth (Eqs. (8) and (9)); increasing ratio between continentality and elevation increases P. nigra ingrowth; and increasing stand elevation ... growth, basal area, dbh, total basal area of P. sylvestris larger trees, total basal area of larger trees thinned during the next 10-year period, total basal area of larger tre...

Ngày tải lên: 08/08/2014, 01:22

... a 1.19 a 0.99 a 1.00 a 1.00 a Ca (%) 0.17 a 0.16 a 0.18 a 0.17 a 0.20 a 0.18 a 0.18 a 0.18 a 0.21 a 0.20 a Mg (%) 0.14 ab 0.13 b 0.16 ab 0.14 ab 0.15 ab 0.15 ab 0.15 ab 0.17 ab 0.17 ab 0.18 a ... incorporated in con- tainer grown seedling root plugs and pointed out that release rate and application rate were the key factors determining control- led-rele...

Ngày tải lên: 08/08/2014, 01:22

... both a daily and annual basis. Leaf area index (LAI, the ratio of leaf area per unit ground area) was often found to be a powerful parameter for the analysis of stand ... of both seasonal and interannual trends of T/PET. The mechanism involved in the interactions between intensity and duration of drought, LAI, transpiration and b...

Ngày tải lên: 08/08/2014, 18:21

... low stomatal conduc- tances and rates of gas exchange (Table I). Intercellular C0 2 concentration was very low and Ci lC a of these plants was approximately 60% of that found ... (A) was measured at various ambient P (C0 2) and NC ¡ (intercellular C0 2 concentra- tion) analysis was performed (Farquhar and Sharkey, 1982). Plants examined us...

Ngày tải lên: 09/08/2014, 04:20