photosynthetic capacity

Listing 1 - 10 from 19 for photosynthetic capacity

Tree Physiology, Volume 27, 2007: Contents
... -term exposure to elevated carbon dioxide concentration at the Duke Forest FACE experiment Clint J. Springer and Richard B. Thomas Tree Physiology 27:3342 [ Summary ] [ Full Text ] Hydraulic architecture and photosynthetic capacity as constraints on release from suppression in Douglas-fir and western hemlock Heidi J. Renninger, Frederick C. Meinzer and Barbara L. Gartner Tree Physiology 27:4352 [ ...
heronpublishing.com

Modeling photosynthesis in olive leaves under drought conditions
... dry-farming (D). In both treatments, leaves had a higher photosynthetic capacity in April than in August. In August, photosynthetic capacity was lower in D trees than in I trees. Leaf ... suggest that olive invests fewer resources in TPU than other species. The seasonal decrease in photosynthetic capacity moderated the stomatal limitation to carbon dioxide (CO2) fixation as soil water deficit increased ...
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Fern Allies
... . The spores of Lycopodium germinate to produce a tiny, short-lived, peg-shaped gametophyte. This usually forms an association with a fungus and some species of Lycopodium have lost their photosynthetic capacity and rely on the fungus to provide carbohydrate! The gametophyte bears antheridia and archegonia and motile sperm cells swim to the eggs to fertilize these. The young sporophyte, as for ...
scitec.uwichill.edu.bb

Department of Biology: Plant Ecophysiology Group: People: Tenured staff: pons
... , temperature and submergence under water. At the whole plant level, we focus on the gradient in irradiance that most plants experience over their foliage, particularly when growing in dense stands. The allocation of photosynthetic capacity to leaves in high-light contributes to efficient utilization of the photosynthetic apparatus at the whole-plant level. The mechanism of perception of- and the ...
www.bio.uu.nl

Botany
... water needs and reducing weed-seed germination due to reduced light. ! Lush growth crowds out weeds. ! Soil temperatures are cooler. When lawns are mowed too short, the following occurs: ! the photosynthetic capacity is reduced; ! sunlight reaches the soil surface increasing loss of soil moisture and increasing weed seed germination; ! the soil dries more quickly; ! the crown of the plant may ...
www.hcs.ohio-state.edu

Sequoía sempervírens (D
... is best in full sunlight. Although redwood seedlings can endure heavy shade, growth there is slow. Photosynthetic capacity in redwood is remarkably high at low light intensities and keeps increasing as light ... originate from both dormant and adventitious buds within 2 to 3 weeks after logging. Sprouting capacity is related to variables associated with tree size or age. Stumps of small young trees ...
www.na.fs.fed.us

CSIRO PUBLISHING - Functional Plant Biology
... and Mark A. Adams pp. 1169-1178 Abstract | PDF (180 KB) - $25.00 Spatial and age-dependent modifications of photosynthetic capacity in four Mediterranean oak species lo Niinemets, John D. Tenhunen and Wolfram Beyschlag pp. 1179-1193 Abstract | PDF (316 KB) - $25.00 A simple dynamic model of photosynthesis in oak leaves: coupling leaf conductance and ...
www.publish.csiro.au

Plant Pathology Glossary
... root. View Image. Chlorophyll the green pigment found in chloroplasts of plant cells and algae. Chlorophyll is the receptor of light energy in photosynthesis. Chlorophyll is also found in photosynthetic bacteria. Chloroplast a disk-shaped structure in plant and algal cells that contains chlorophyll and is the site of photosynthesis. Constitutive constantly present, whether there is demand or not. ...
bugs.bio.usyd.edu.au

Ultra Violet Meter: Apogee Instruments Inc.
... photon flux of UV radiation (250 to 400 nm) can be expressed as a percentage of the Photosynthetic Photon Flux (PPF = 400 to 700 nm). The unit for both UV and PPF is mol m- ... the UV radiation coming from electric lamps. This meter is particularly useful for determining the UV filtering capacity of the transparent plastic and glass barriers that are commonly used below electric lamps. CLICK ON IMAGE ...
www.apogee-inst.com

Institute of Plant Physiology > Departments > Photosynthesis
... PSII, lipid composition of photosynthetic membranes and antioxidant enzymes are used as a criteria. Thermoluminescence technique is applied to monitor the effect of drought stress on the photosynthetic electron transport chain of various plant species. The coordination between the carbon and nitrogen metabolism under different stress conditions is studied. ÀÐ×àÐÑÞâÒÐÝØ ÝÐãçÝØ ßàÞÕÚâØ ½ÕØÝÒÐÝ×ØÒÝØ ...
www.bio21.bas.bg