Báo cáo lâm nghiệp: "Water relations of cork oak (Quercus suber L ) seedlings in response to shading and moderate drought" ppt

... the low light levels (LL1 and LL 2), seedlings could be arranged in two groups according to their response to the light environment: low light level (LL = LL1 + LL2 < 16% of full sun light) and ... group (HL = HL1 + HL 2) and the low light group (LL = LL1 + LL 2). Values of F statistic and results of fitting the functions for the HL and LL groups are shown...

Ngày tải lên: 08/08/2014, 00:22

... Hancock J.F., Isozyme variation in oaks of the Apostle islands in Wisconsin: genetic struc- ture and levels of inbreeding in Quercus rubra and Q. ellipsoidalis (Fagaceae), 1993. [14] Jensen R.J., ... 64 (200 7) 549–555 Available online at: c  INRA, EDP Sciences, 2007 www.afs-journal.org DOI: 10.1051/forest:2007032 Original article Morphological evaluation of cork oak...

Ngày tải lên: 07/08/2014, 16:21

... growth and biomass partitioning of seedlings of European beech (Fagus sylvatica L. ) and pendunculate oak (Quercus robur L. ) and (ii) to what extent reductions of light quantity and quality, respectively, account ... sylvatica L. and Quercus robur L. seedlings in response to shading and small changes in the R/FR-ratio of radiation Christ...

Ngày tải lên: 08/08/2014, 01:21

... dF/&Psi; leaf daily variations were linear in our study, which proves that gL is independent of dF midday and ii) gL was also linearly related to inde- pendent measurements of ... (199 1) Stomatal responses to humidity in air and helox. Plant Cell Environ 14, 509- 515 Nobel PS, Cui MY (199 2) Hydraulic conductances of the soil,...

Ngày tải lên: 08/08/2014, 18:21

... turgor loss point (RWC tlp ) and symplastic water content (&Theta; sym ) were calculated according to Schulte and Hinckley (198 5), and bulk modulus of elasticity (&epsiv ;) ... a null- balance steady-state porometer (LI-1600,Li-Cor Inc, Lincoln, NE, USA), respectively. Six leaves per treatment and per species at a time, collect...

Ngày tải lên: 08/08/2014, 18:21

... grass- land annuals on soil water and blue oak (Quercus douglasii) seedlings. Ecology 74, 68-82 Griffin JR (197 1) Oak regeneration in the upper valley, California. Ecology ... dioxide on leaf gas exchange and growth of cork- oak (Quercus suber L) seedlings C Damesin, C Galera, S Rambal, R Joffre Centre d’écologie fonctionnelle et é...

Ngày tải lên: 08/08/2014, 18:21

... Clark-Evans index. Ripley’s K-function (Fig. 4A) also indicates the mostly moderately regular distribution and only edge random distribution (in the smallest and largest spacings) of combined ... there. Table 1 shows the values of indices of the horizon- tal structure of recruits and tree layer. According to all three determined structural indices (Hopkins- Skellam, Piel...

Ngày tải lên: 07/08/2014, 10:21

... avec les travaux de Chapin (198 0) sur les végétaux sclérophylles en général. Specht et Rundel (199 0) ont plutôt travaillé sur la relation entre le degré de sclérophyl- lie ... annuelle des cernes de liège femelle. Pour cela, il a été pratiqué une analyse factorielle des correspondances (AFC) à l aide des tableaux de contingence établis sur...

Ngày tải lên: 08/08/2014, 18:21

... years to increase the area of Cork oak stands by planting both in forestland and in abandoned arable land [34]. The rate of success has been quite vari- able. For example, an evaluation of the ... (>5 g) est plus rapide que celles desplants issus despetits glands (<4 g),mais la hauteurfinale dépend de l âgedes glands. La tailledes glands etleur conserva- tion affecten...

Ngày tải lên: 08/08/2014, 14:21

... significance of P < 0.0001. The overall resistance of the root system (R root ) appeared to be also linearly and positively related to WSI (Fig. 8). The overall diurnal drop in Y L (WSI) increased in ... factor of over three) recorded in September with respect to values recorded in July, was paralleled by Y L dropping to –3.5 MPa and reaching the turgo...

Ngày tải lên: 08/08/2014, 01:21