Báo cáo lâm nghiệp: "Drought and photosystem II activity in two Mediterranean oaks" doc

... possibilities of National Forest Inventory for the evaluation end, there comes the Inventory of Game Damage in the Smaller Territo- rial Units. CONCLUSION Results from National Forests Inventory ... during repeated investigation in comparison with the rest of the investigated territory. In the course of five years, in relation to the original po...

Ngày tải lên: 07/08/2014, 03:22

... the Ministry of Agriculture of the Czech Republic, Research Project No. QG 50105. Production and humus form development in forest stands established on agricultural lands – Kostelec nad Černými ... composition). e study was performed in the stands of four tree species on afforested agricul- tural lands, in a neighbouring forest stand on con- tinuo...

Ngày tải lên: 07/08/2014, 03:22

... 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

... R 6 R R R – removal cut; P – preparatory cut J. FOR. SCI., 57, 2011 (6): 271–277 271 Harvest scheduling with spatial aggregation for two and three strip cut system under shelterwood management M. ... adjacent strips within the re- generation period of 30 years. e three- cut shelterwood system consists of a pre- paratory, establishment, and removal cut....

Ngày tải lên: 07/08/2014, 10:21

... dynamics of beech, mixed (fi r beech and spruce beech stands) and spruce stands, relict pine woods and stands in the ecotone of the upper forest limit in diff erent site, stand, air-pollution and ... ability in higher elevations and tolerates conditions in the ecotone of the up- per forest limit, although its optimal growth and production is reached...

Ngày tải lên: 07/08/2014, 10:21

... e application of A. cilicica, A. alba and A. nordmanniana resulted in 14% of germi- nating seedlings at least. Utilizing A. concolor, A. grandis and A. pinsapo lowered the germination rate ... 2009. 2009 In spring 2009 (beginning May 1 st ) pollination took place in two out of the four seed orchards (1 and 4).  e pollen of Abies fraseri was obtained from North Carol...

Ngày tải lên: 07/08/2014, 10:21

... 4 ◦ C above nor- mal in a smaller region, mainly in the South-West, from East- ern Spain to Southern Germany, including most of continen- tal Italy, Sardinia, Corsica, Switzerland, and most of France. August ... than June and August, except in Swe- den, Finland and Norway. On most of the continent, both min- imum and maximum air temperature were between 1 and 3 ◦ C above nor...

Ngày tải lên: 07/08/2014, 16:20

... between survival and RWC 36-days after transplanting in seedlings of E. globulus. subsp. bicostata Each point represents the mean value of five observations of each treatment. to plant survival and ... among prove- nances of several Eucalyptus [25, 42], between and within subspecies of E. globulus [15, 54], as well as among clones of E. globulus subsp. globu...

Ngày tải lên: 07/08/2014, 16:20

... article Physiological and morphological responses of dormant and growing Norway spruce container seedlings to drought after planting Pekka HELENIUS*, Jaana LUORANEN, Risto RIKALA Finnish Forest ... stage of seedlings and the drought period on Ψ shoot pd and Ψ shoot d (p < 0.001), both being lower in growing seedlings than in dormant seedlings...

Ngày tải lên: 08/08/2014, 00:21

... 10.1051/forest:2005024 Original article Leaf and whole-plant water relations of the Patagonian conifer Austrocedrus chilensis (D. Don) Pic. Ser. et Bizzarri: implications on its drought resistance capacity Javier ... Pastorino M.J., Genetic variation and reproduction system of Aus- trocedrus chilensis (D. Don) florin et Boutelje, a cy...

Ngày tải lên: 08/08/2014, 00:21

... photoinhi- bition in Scots pine and in winter and spring cereals: a fluorescence analysis. Funct Ecol 5, 91-100 Osmond CB, Gui-Ying B, Lin-Ke H, Sharkey TD (1987) Determining ... energy in the photosynthetic appara- tus), as well as from photodamage to PS II. In examining changes in Fv /F m, increases in F0 are to be distinguished from d...

Ngày tải lên: 08/08/2014, 18:21

... per branch was determined. Original article Soil and tree water relations in mature oak stands of northern Germany differing in the degree of decline FM Thomas G Hartmann Niedersächsische ... reduced in the stands of the Hakel Forest. In these stands, the tensiometers were placed within an area of about 20 m * 10 m. Since...

Ngày tải lên: 08/08/2014, 18:21

... of developing pods and leaves of honey mesquite. J. Range Manag. 27, 202-203 CO 2 assimilation in young Prosopis plants M. Pinto Departamento de Producci6n Agricola, Facultad ... any single species of Prosopis are lacking. According to Acevedo et al., (1985b), Prosopis tamarugo is a C3 plant and the net assimilation rates of other Pros...

Ngày tải lên: 09/08/2014, 04:20

... induced in beech-Lactarius ectomycorrhizas incubat- ed in the presence of litter proteins. Gelatin was less efficient and ammonium repressed the excretion after 48 h of incubation. ... grown in shaken cultures at 25°C in Pachlewski’s medium containing nitrogen as either diammonium tartrate or proteins: bovine serum albumin (BSA), gelatin, casein...

Ngày tải lên: 09/08/2014, 04:20

... the activity in needles of injured trees with 50% loss of needles. In needles from healthy trees, SOD ac- tivity was highest in the youngest needles and then declined ... changes in SOD activity in needles of conifers have not been published. Therefore, the activity of SOD was analyz- ed in 4 subsequent generations of needle...

Ngày tải lên: 09/08/2014, 04:20