Search Results - "Hymus, G J"

Is stimulation of leaf photosynthesis by elevated carbon dioxide concentration maintained in the long term? A test with Lolium perenne grown for 10 years at two nitrogen fertilization levels under Free air CO2 Enrichment (FACE) by AINSWORTH, E. A, DAVEY, P. A, HYMUS, G. J, OSBORNE, C. P, ROGERS, A, BLUM, H, NÖSBERGER, J, LONG, S. P

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Will rising CO2 protect plants from the midday sun? A study of photoinhibition of Quercus myrtifolia in a scrub‐oak community in two seasons by Hymus, G. J., Dijkstra, P., Baker, N. R., Drake, B. G., Long, S. P.

“…Over a large part of the photoperiod, light energy absorbed by upper canopy leaves saturates photosynthesis and exceeds the energetic requirements for…”
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Does free-air carbon dioxide enrichment affect photochemical energy use by evergreen trees in different seasons? A chlorophyll fluorescence study of mature loblolly pine by Hymus, G.J, Ellsworth, D.S, Baker, N.R, Long, S.P

“…Previous studies of the effects of growth at elevated CO2 on energy partitioning in the photosynthetic apparatus have produced conflicting results. The…”
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Direct and indirect effects of elevated CO2 on transpiration from Quercus myrtifolia in a scrub-oak ecosystem by Li, J.-H., Dugas, W. A., Hymus, G. J., Johnson, D. P., Hinkle, C. R., Drake, B. G., Hungate, B. A.

“…Elevated atmospheric carbon dioxide (Ca) usually reduces stomatal conductance, but the effects on plant transpiration in the field are not well understood…”
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Leaf senescence of Quercus myrtifolia as affected by long-term CO2 enrichment in its native environment by Li, J. -H., Dijkstra, P., Hymus, G. J., Wheeler, R. M., Piastuch, W. C., Hinkle, C. R., Drake, B. G.

“…Summary The long‐term effects of elevated (ambient plus 350 μmol mol−1) atmospheric CO2 concentration (Ca) on the leaf senescence of Quercus myrtifolia Willd…”
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Growth in Elevated CO₂ Can Both Increase and Decrease Photochemistry and Photoinhibition of Photosynthesis in a Predictable Manner. Dactylis glomerata Grown in Two Levels of Nitrogen Nutrition by Hymus, Graham J., Baker, Neil R., Long, Stephen P.

“…Biochemically based models of C3 photosynthesis can be used to predict that when photosynthesis is limited by the amount of Rubisco, increasing atmospheric CO2…”
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CO₂ elicits long-term decline in nitrogen fixation by Hungate, B.A, Stiling, P.D, Dijkstra, P, Johnson, D.W, Ketterer, M.E, Hymus, G.J, Hinkle, C.R, Drake, B.G

“…Hungate et al investigate the effects of elevated atmospheric carbon dioxide (Ca) on legume nitrogen fixation in a stand of scrub-oak vegetation in central…”
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Growth in elevated CO(2) can both increase and decrease photochemistry and photoinhibition of photosynthesis in a predictable manner. Dactylis glomerata grown in two levels of nitrogen nutrition by Hymus, G J, Baker, N R, Long, S P

“…Biochemically based models of C(3) photosynthesis can be used to predict that when photosynthesis is limited by the amount of Rubisco, increasing atmospheric…”
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Long-Term Response of Photosynthesis to Elevated Carbon Dioxide in a Florida Scrub-Oak Ecosystem by Ainsworth, Elizabeth A., Davey, Phillip A., Hymus, Graham J., Drake, Bert G., Long, Stephen P.

“…The response of photosynthesis was analyzed during canopy closure in a Florida scrub-oak ecosystem exposed to elevated [ CO2] ($704\>\mu mol\>CO_2/mol$ air;…”
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Leaf senescence of Quercus myrtifolia as affected by long‐term CO 2 enrichment in its native environment by Li, J. ‐H., Dijkstra, P., Hymus, G. J., Wheeler, R. M., Piastuch, W. C., Hinkle, C. R., Drake, B. G.

“…The long‐term effects of elevated (ambient plus 350 μmol mol −1 ) atmospheric CO 2 concentration (C a ) on the leaf senescence of Quercus myrtifolia Willd was…”
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Is stimulation of leaf photosynthesis by elevated carbon dioxide concentration maintained in the long term? A test with Lolium perenne grown for 10 years at two nitrogen fertilization levels under Free Air CO^sub 2^ Enrichment (FACE) by Ainsworth, E A, Davey, P A, Hymus, G J, Osborne, C P

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Respiratory Oxygen Uptake Is Not Decreased by an Instantaneous Elevation of [CO₂], but Is Increased with Long-Term Growth in the Field at Elevated [CO₂] by Davey, Phillip A., Hunt, Stephen, Hymus, Graham J., DeLucia, Evan H., Drake, Bert G., Karnosky, David F., Long, Stephen P.

“…Averaged across many previous investigations, doubling the CO2 concentration ([CO2]) has frequently been reported to cause an instantaneous reduction of leaf…”
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Cross validation of open-top chamber and eddy covariance measurements of ecosystem CO sub(2) exchange in a Florida scrub-oak ecosystem by Dore, S, Hymus, G J, Johnson, D P, Hinkle, C R, Valentini, R, Drake, B G

“…Simultaneous measurements of net ecosystem CO sub(2) exchange (NEE) were made in a Florida scrub-oak ecosystem in August 1997 and then every month between…”
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Growth in elevated CO sub(2) can both increase and decrease photochemistry and photoinhibition of photosynthesis in a predictable manner. Dactylis glomerata grown in two levels of nitrogen nutrition by Hymus, G J, Baker, N R, Long, S P

“…Biochemically based models of C sub(3) photosynthesis can be used to predict that when photosynthesis is limited by the amount of Rubisco, increasing…”
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Will CO2 protect plants from the midday sun? A study of photoinhibition of Quercus myrtifolia in a scrub-oak community in two seasons by Hymus, G J, Dijkstra, P, Baker, N R, Drake, B G, Long, S P

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Will rising CO 2 protect plants from the midday sun? A study of photoinhibition of Quercus myrtifolia in a scrub‐oak community in two seasons by Hymus, G. J., Dijkstra, P., Baker, N. R., Drake, B. G., Long, S. P.

“…Over a large part of the photoperiod, light energy absorbed by upper canopy leaves saturates photosynthesis and exceeds the energetic requirements for…”
Get full text

Is stimulation of leaf photosynthesis by elevated carbon dioxide concentration maintained in the long term? A test with Lolium perenne grown for 10 years at two nitrogen fertilization levels under F ree A ir C O 2 E nrichment (FACE) by AINSWORTH, E. A., DAVEY, P. A., HYMUS, G. J., OSBORNE, C. P., ROGERS, A., BLUM, H., NÖSBERGER, J., LONG, S. P.

“…Photosynthesis is commonly stimulated in grasslands with experimental increases in atmospheric CO 2 concentration ([CO 2 ]), a physiological response that…”
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Is stimulation of leaf photosynthesis by elevated carbon dioxide concentration maintained in the long term? A test with Lolium perenne grown for 10 years at two nitrogen fertilization levels under Free Air CO2Enrichment (FACE) by AINSWORTH, E. A., DAVEY, P. A., HYMUS, G. J., OSBORNE, C. P., ROGERS, A., BLUM, H., NÖSBERGER, J., LONG, S. P.

“…ABSTRACT Photosynthesis is commonly stimulated in grasslands with experimental increases in atmospheric CO2 concentration ([CO2]), a physiological response…”
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Direct and Indirect Effects of Elevated CO sub(2) on Transpiration from Quercus myrtifolia in a Scrub-Oak Ecosystem by Li, J-H, Dugas, WA, Hymus, G J, Johnson, D P, Hinkle, C R, Drake, B G, Hungate, BA

“…After 4 yr of exposure of Quercus myrtifolia Willd. to elevated atmospheric carbon dioxide in open-top chambers, the direct and indirect effects on…”
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Direct and indirect effects of elevated CO 2 on transpiration from Quercus myrtifolia in a scrub‐oak ecosystem by Li, J.‐H., Dugas, W. A., Hymus, G. J., Johnson, D. P., Hinkle, C. R., Drake, B. G., Hungate, B. A.

“…Elevated atmospheric carbon dioxide (C a ) usually reduces stomatal conductance, but the effects on plant transpiration in the field are not well understood…”
Get full text