Báo cáo lâm nghiệp: "Leaf and whole-plant water relations of the Patagonian conifer Austrocedrus chilensis (D Don) Pic Ser et Bizzarri: implications on its drought resistance capacity" ppt

... 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 E. GYENGE*, ... Pastorino M.J., Genetic variation and reproduction system of Aus- trocedrus chilensis (D. Don) florin et Boutelje, a cypress endemic to the A...

Ngày tải lên: 08/08/2014, 00:21

... higher. Soil and tree water relations in the sessile oak stands of the Hakel Forest Soil water relations In 1993, the vegetation period was excep- tionally humid. The sum of precipitation ... irre- spective of the degree of damage of the stand, for comparisons of PWP, AWP and RWC between the vitality classes of the trees. PWP...

Ngày tải lên: 08/08/2014, 18:21

... summit parts of uplands have conditions for the vegetation of the spruce forest altitudinal zone (FAZ) (dominant associations of Calamagrostio villosae-Piceetum and Sphagno-Piceetum) (cf. C ... dysfunctions between needles (leaves) and root system. e functional connection of roots with the soil as well as with the other tissues of the plant is related to soil...

Ngày tải lên: 07/08/2014, 03:22

... loci. The determination of genetic distance between populations did not allow us to discriminate between bivoltine lowland populations and univoltine mountain populations. The ... existence of adult migrations speading the outbreak and of population exchanges between mountains and lowlands. For the three populations of central France, we co...

Ngày tải lên: 08/08/2014, 18:21

... 751-755 Experimental conditions Long-term stress was obtained by lowering the daily watering to 10% of the amount of tran- spired water at the beginning of the experiment. After ... expanded leaves presented the same anatomical characteristics as the control (Figs. 2 and 3). Effect of carbon nutrition A 40% increase in the photosyntheti...

Ngày tải lên: 09/08/2014, 04:20

... Salda G., Schlichter T., Leaf and whole-plant water relations of the Patagonian conifer Austrocedrus chilensis (D. Don) Pic. Ser. et Bizzarri: implications on its drought resistance capacity, Ann. ... Publishers, Dordrecht, The Netherlands, 1989, pp. 37–56. [34] Pita P., Pardos J.A., Growth, morphology, water use and tissue water relations o...

Ngày tải lên: 07/08/2014, 16:20

... the real values, because the estimation mitigates the random variations and gives a better overall picture of the phenomenon [9]). As far as the L1 is concerned, the damage for the Lambro clone ... leaf damage on 24 clones from Italy, Belgium and the Netherlands. Damage varied considerably, depending on the clones, sites, species and parental individuals. Clone’s...

Ngày tải lên: 07/08/2014, 16:20

... centre show the actual conditions for the canopies and the panels on the right show the effects of an increase in foliage nitrogen concentration, N a , of 50%. The symbols shown and the conditions used ... photosynthesis [57]. On wet days, the proportion of net rainfall penetrating the canopy is set at 0.8 (R.J. Jackson, personal communication) and transpirat...

Ngày tải lên: 08/08/2014, 00:22

... morphology variation among growth units Flushing was the second source of variation in leaf size (20% and 7% of the total variability of leaf length and surface area, respectively; Tabs. II and III). ... discrimination. The effects of species, irradiance regime, growth flush and their interactions on continuous morphological variables and on MCA fac- tors were esti...

Ngày tải lên: 08/08/2014, 01:22

... 1993). The advantage of acoustic detection is that it is nondestructive. But hydraulic detection gives more information on the cumulative impact of cavitation to the water relations ... tran- spiration. Our current understanding of the mechanism of sap ascent is based on the cohesion theory usually ascribed to Dixon (1914), and a use...

Ngày tải lên: 08/08/2014, 18:21