growth photosynthesis and water use efficiency

... net spruces Gross K (1988) Net photosynthesis, biomass production and water- use efficiency of young Norway spruces and Douglas firs, given different levels of water supply for several years in ... fir had a higher water- use efficiency than Norway spruce; 2) turgor loss point values for mature Douglas fir twigs were lower than those of spruce, ) (Fig.1) thus Water- use efficiency was greater ... the highest net water supply photosynthesis PICEA and thus also ’ fastest growth Douglas the fir was superior to spruce Net photosynthesis in trees with limited or very limited water supply was...

Ngày tải lên: 09/08/2014, 04:20

... (fig 6) Intrinsic water- use efficiency was higher under elevated than under ambient CO on d216 and d239 only Water- use efficiency and carbon isotope discrimination Water- use efficiency (W) was ... western and central Europe The objective of this study was to relate the biomass growth and water- use efficiency responses to elevated [CO to ] the characteristics of elongation growth and leaf ... Peirera JS (1992) Water stress, climate change J Exp Bot 43, 1131-1139 CO and Coleman JS, Bazzaz FA (1992) Effects of CO and tem2 perature on growth and resource use of a co-occurring C and C annuals...

Ngày tải lên: 08/08/2014, 18:21

... The growth medium was maintained in a well watered state (pF < 1.5) during the whole growth period Before inoculation the containers were watered with water at pH 8.3, which adjusted the growth ... nitrogen fertilization, and mycorrhizal fungi on growth and photosynthesis of lodgepole pine seedlings Can J For Res 13, 099-1 106 Guehl JM, Aussenac G (1987) Photosynthesis decrease and stomatal control ... harvested in a Pinus pinea stand established on a calcareous sandy soil (La Grande Motte, Hérault, France): Suillus collinitus (ss Flury nec ss Sr.; strains, and 2) and Rhizopogon roseolus (Corda...

Ngày tải lên: 09/08/2014, 03:24

... albida water The experiments were run in a greenhouse at Inra-Nancy (France) Measurements focused on growth features, wateruse efficiency, and photosynthetic performance We tested the potential use ... survival could thus rely on the efficiency of the root growth [32], and on the water- use strategy adopted before reaching groundwater Initial growth, root development and economy of young F albida ... TLA: total leaf area (m ); TWU: total water- use, including transpiration and soil evaporation (kg); W: water- use efficiency, or total dry mass-tototal water- use ratio (g DM A: plant carbon isotope...

Ngày tải lên: 09/08/2014, 04:20

... decline of mesophyll photosynthesis was noted starting from -1.5 MPa in P macrocarpa and -1.9 MPa in P menziesii In both species, stomatal conductance and especially mesophyll photosynthesis were ... highest and the most unstable - and thus non-optimal values of aEf7A in response to increasing AW (Fig 2a) P macrocarpaalso had the highest c7Elc?A at high water poten- - tial (Fig 2b) Growth ... effects of soil and atmospheric drought on photosynthesis and stomatal control of gas exchange in three coniferous species Physiol Plant 73, 97-104 Jones H.G (1985) Partitioning stomatal and non-stomatal...

Ngày tải lên: 09/08/2014, 04:20

... weight to needle area) Gas exchange and water- use efficiency Table II gives the mean values of CO as2 similation rate (A), stomatal conductance (g) and water- use efficiency (WUE A/g) in the different ... deficiency and water stress on the growth, conductance and water used of Pinus radiata D Don Plant Cell Environ 11, 91-98 Dietz KJ, Foyer C (1986) The relationship bephosphate status and photosynthesis ... Growth, carbon dioxide assimilation capacity and water- use efficiency of Pinus pinea L seedlings inoculated with different ectomycorrhizal fungi Ann Sci For 47, 91100 Smith SE (1983) Growth and...

Ngày tải lên: 09/08/2014, 03:25

... concentration of water vapor and C0 in determining transpiration photosynthesis relationship of cotton leaves Agric Meteorol 2, 259-270 Farquhar G.D & Sharkey T.D (1982) Stomatal conductance and photosynthesis ... these values of g water is wasted , c References European hedgerow II Stomatal response, hydraulic conductivity in the root/leaf pathway Oecologia (Berlin) 64, 344- water use, and Bethenod 0., ... phase for g! below i 0.2 mol and a maximum assimila, s m’ tion phase for g above 0.23 mol!m-2!s-! c Discussion and Conclusion The relation between net assimilation (A!) and leaf conductance to C0...

Ngày tải lên: 09/08/2014, 04:20

... intersectoral water allocation in river basins, productivity of water, improved water utilization and on-farm water use efficiency, and multiple uses of water for agriculture The papers are published and ... storage Water depletion: a use or removal of water from a water basin that renders it unavailable for further use Non-depletive uses of water: uses where benefits are derived from an intended use ... of water at the field and irrigation service levels In the future phases, concepts and examples will be presented from multiple uses of water and water quality Water Balance Approach The water...

Ngày tải lên: 06/03/2014, 15:21

... Water Facts Source and conveyance Drinking Water Treatment Water Efficiency Saves Energy: Reducing Global Warming Pollution Through Water Use Strategies Water conservation and efficiency ... techniques 2 Recycle and Reuse Wastewater Because water suitable for reuse is often a by-product of existing secondary and tertiary wastewater treatment processes, this type of water recycling is ... Improving drinking water infrastructure would save water and energy, and reduce the global warming pollution that results from wasted energy End Use Promote and Expand the EPA’s WaterSense Program...

Ngày tải lên: 06/03/2014, 23:20

Ngày tải lên: 20/03/2014, 18:20

... condensate and integration of waste water from brew M AN U packaging plants and service water was adapted to the existing process water tank on site); • Use water from elevated process water tank ... process water demand For the considered breweries it could theoretically be shown that careful use of hot water and an intelligent heat integration network make heating requirements for hot water ... offers energy managers cold water An example of such an intelligent “energy swing” is the use of the hot brewing water for preheating the wort and the consequent use as brew water Practical networks...

Ngày tải lên: 24/03/2014, 04:20

... shown in Figure 3: (1) Both storage and growth are promoted, (2) growth is favoured over storage, (3) both storage and growth decline (toxic effect), and (4) growth is declined at a higher rate ... (left) and watering (right) on plant starch concentration (abscissas) and starch pool size (ordinates) LF, MF and HF are low, moderate and high fertilization, respectively, and LW, MW and HW ... from each treatment and were weighed periodically before and after the watering to monitor the gravimetric soil water, which was 28–39, 55–71 and 70–85 g H2 O 100 g−1 for LW, MW and HW respectively...

Ngày tải lên: 07/08/2014, 16:20

... canopy and less competition for water and nutrients If the conditions continue over several years the structure of the stand may become more homogenous However, a complete adjustment and formation ... had an unused growth potential which had not been activated during the drought This could be used to compensate for a part of the losses in growth To what extent the increase in radial growth by ... status and growth of spruce stands in a regional comparison, Forstw Cbl 99 (1980) 137–140 [16] Mohren G.M.J, Ilvesniemi H., van Grinsven H.J.M Modelling effects of soil adification on tree growth and...

Ngày tải lên: 08/08/2014, 14:20

... Sandi S., Effect of restricted watering and with its combination with root pruning on root growth capacity, water status and food reserves of Pinus caribaea var hondurensis seedlings, Plant and ... differences in water relations and root growth capacity At this date, the moderate and strong conditioning treat- ments had experienced two complete drought cycles (two cycles 20 and 22 days of ... predawn 9, 13 and 21), all water potential (WC), and electrolyte leakage (EL) ), pd (Ψ measurements On the first four water content sampling dates (days 0, sampled simultaneouswere randomly selected...

Ngày tải lên: 08/08/2014, 14:21

... their water requirements from the water table or deep groundwater sources and not depend on uncertain rains and surface water (Ehleringer and Dawson, 1992) Predawn leaf water potential may be useful ... and Abrams, 1993) Differences in stomatal response, resistance to water stress and increased water- use efficiency also are found when xeric and mesic oak species are compared and when xeric and ... Water supply and tree Water deficits For Abs 43, 57-95 growth I (1982b) Water supply and tree growth II Flooding For Abs 43, 145-161 Kriebel HB (1993) Intraspecific variation of growth and adaptive...

Ngày tải lên: 08/08/2014, 18:21

... treated and one control) which had been randomly selected at the beginning of the experon iment The remaining seedlings were used for weekly measurements of shoot and root growth, water potential, and ... weekly The growth conditions and soil characteristics have been described by Colin-Belgrand et al (1991) The plants were waterlogged with tap water June 15th The upper level of the water table ... (Childers and White, 1942; Regehr et al, 1975; Tang and Koz- lowski, 1982; Pezeshki and Chambers, 1985, 1986; Savé and Serrano, 1986; Davies and Flore, 1986a, b; Harrington, 1987; Osonubi and Osundina,...

Ngày tải lên: 08/08/2014, 23:21

... threedimensional canopy units Estimates of stand xylem sapflow and modelled canopy transpiration are used to 1) investigate principle differences in the water uptake water use and canopy transpiration at various ... old forest canopy water use with water vapor fluxes measured by eddy covariance are difficult due to the small surface occupied by the old forest stands in the catchment and because the understory ... extractable water in the stem (154 m blc * -1 0.6, for conversion of total SWV into available water according to Waring and Running [54]) and mm (sum of water content in needles and branches)...

Ngày tải lên: 09/08/2014, 04:20

... of New Zealand and its biota In: Biogeography and Ecology in New Zealand (Kushel G., ed.), W Junk The Hague, pp 1-86 References & Moore P.D (1976) In: Biogeography, an Ecological and Evolutionary ... affects growth and development of Engelmann spruce For Sci 16, 447-452 Kramer P.J (1957) Some effects of various combinations of day and night temperatures and photoperiod on the height growth ... Lands in Collision Discovering New Zealand’s Past Geography Oxford, pp 179 DSIR Information Series, No 161 through the early Pliocene and, Brix H (1971) Growth responses of western hemlock and...

Ngày tải lên: 09/08/2014, 04:20

... Growth Performance and Sperm Quality of Stress Negative Piétrain Boars and Their Hybrids with Duroc Kawecka et al (2008), Wysokinska et al (2009), Pokrywka and Tereszkiewicz (2011) and Luc ... study were to evaluate the growth performance and semen quality of pure Piétrain boar and Piétrain x Duroc hybrid boars with different genetic components water were used to reduce heat stress ... CO, MO and VOL RESULTS AND DISCUSSION 3.1 Growth performance The growth performance is influenced by the genetic group effect (P

Ngày tải lên: 28/08/2013, 11:59

... sea urchins and water velocities ranged from to 20 ind m-2 and from 2.4 to 4.6 cm sec-1, respectively The similarity in water flow conditions between the inner - 206 - Journal of Water and Environment ... seaweed and aquaculture Midori Press, Tokyo, pp 133 - 144 Turner, M G., Gardner, R H and ÓNeill R V (2004) Landscape ecology in theory and practice: Pattern and process, Nakagoshi, N and Hara, ... cobble, pebble, sand and mud according to the size classification of Fujita et al (2003) - 202 - Journal of Water and Environment Technology, Vol 7, No 3, 2009 (A) (B) 141º 30’ E Mean Low Water Level...

Ngày tải lên: 05/09/2013, 09:38