Báo cáo lâm nghiệp: " Growth, mineral nutrient content and nitrogen metabo- ism in Laccaria laccata-inoculated and non-inoculated Douglas fir seedlings during their growth period" docx

... class="bi x0 y0 w2 h1 7" alt ="" Growth, mineral nutrient content and nitrogen metabo- lism in Laccaria laccata-inoculated and non-inoculated Douglas fir seedlings during their growth ... free amino acid pools in root and leaf tissues. Alanine and glutamine in both root and leaf tissues appeared to be in higher amounts in...

Ngày tải lên: 09/08/2014, 04:20

... 62: 1–41. MILLER H.G., 1989. Internal and external cycling of nutrients in forest stands. In: PEREIRA J.S., LANDSBERG J.J. (eds), Biomass Production by Fast-Growing Trees, Applied Sci- ence. ... 46°C and a minimum of 28.8°C during summers and minimum dipping to 26 to 2.5°C, respectively. e soil is alluvial, yellowish brown to deep medium black and loamy with rocky beds. Acc...

Ngày tải lên: 07/08/2014, 03:22

... class="bi x0 y0 w0 h 0" alt ="" INTRODUCTION Growth of trees is generally related to min- eral nutrition. Some deficiencies greatly affect growth, when cations are lacking (Shear and ... increased in 1995 in O and A and remained constant for the oth- ers. The highest Mn levels (fig 2d) were obtained in O and gradually decreased from A...

Ngày tải lên: 08/08/2014, 18:22

... current-year seedlings between May and October 2002 in two independent experiments. The three species showed a similar response to fertilization, storing nitrogen instead of increasing biomass, in agreement ... carbohydrate and nitrogen reserves of seedlings of three Mediterranean oaks (Quercus coccifera, Q. ilex subsp. ballota and Q. faginea) to changes in nutri- ent and...

Ngày tải lên: 07/08/2014, 16:20

... its position in a stand. MATERIAL AND METHODS A large stand with wild cherry trees as a stand- forming species in the area of Demonstration Forests in Kostelec nad Černými lesy in the mixture ... trees in the stand belonging to dominant/codominant and suppressed tree classes. Height periodic increment (measured between the years 2001 and 2007) is significantly (p < 0.01) d...

Ngày tải lên: 07/08/2014, 03:22

... Fv/Fm in beech seedlings growing in the open area, higher values in the gap and the highest values in seedlings growing under shelterwood, ex- plained these diff erences by increased photoinhibi- tion ... observed in seedlings from both the 4 th and the 7 th FAZ during the whole growing season (Fig. 2). Higher maximum values of ETR in unshaded seedlings of variou...

Ngày tải lên: 07/08/2014, 10:21

... 'CZ-144') originating from open pol- lination and P-789 (P. deltoides) maintained in the Czech poplar germplasm collection were included in the group of candidate clones with estimated ... mean annual increment of height tivation techniques such as ploughing and weed control in rows were performed and had a positive in uence on fast growth of poplars in the initi...

Ngày tải lên: 07/08/2014, 10:21

... time longleaf pine seedlings are in the grass stage and increase height growth, New For. 19 (2000) 279−290. [31] King J.S., Albaugh T.J., Allen H.L., Kress L.W., Stand-level allom- etry in Pinus taeda ... vegetation both between rows and at the tree base and therefore they had almost no effect on improving growth, nutrient status and photosynthetic capacity of hybrid pop...

Ngày tải lên: 07/08/2014, 16:20

... / taillis 1. INTRODUCTION In Europe, man, at some point in time, has influenced almost all forests and woodlands [9, 21, 26]. Already during Roman times the original vegetation in Western Europe ... cleared and converted to arable land and pastures, or were cut for the supply of firewood and construction timber. During the Middle Ages, the remaining forests were further redu...

Ngày tải lên: 08/08/2014, 00:22

... beech and oak to shading 171 [35] Minotta G., Pinzauti S., Effects of light and soil fertility on growth, leaf chlorophyll content and nutrient use efficiency of beech (Fagus sylvatica L.) seedlings, ... 163–171 © INRA, EDP Sciences, 2003 DOI: 10.1051/forest:2003009 Original article Growth and biomass partitioning of Fagus sylvatica L. and Quercus robur L. seedlings i...

Ngày tải lên: 08/08/2014, 01:21