BerningerMakelaHari1996

Référence

Berninger, F., Makela, A., Hari, P. (1996) Optimal control of gas exchange during drought: Empirical evidence. Annals of Botany, 77(5):469-476.

Résumé

The optimal regulation model by Makela, Berninger and Hari (Annals of Botany 77: 461-467, 1996) was applied to data for photosynthesis and transpiration of Scots pine during a 22-d drought period. There was a clear decrease in photosynthesis and transpiration during that period. The agreement between model and photosynthesis data was good. The residuals of photosynthesis were not systematic with respect to temperature, irradiance or water vapour deficit. However, the model initially overestimated transpiration by 50%, although there was a clear linear relationship between measured and estimated values. The results suggest that there was no decrease in photosynthetic capacity during the period, but a decrease in stomatal conductance was responsible for the changes in photosynthesis trod transpiration. The observations are similar to results in the literature.

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@ARTICLE { BerningerMakelaHari1996,
    AUTHOR = { Berninger, F. and Makela, A. and Hari, P. },
    TITLE = { Optimal control of gas exchange during drought: Empirical evidence },
    JOURNAL = { Annals of Botany },
    YEAR = { 1996 },
    VOLUME = { 77 },
    PAGES = { 469-476 },
    NUMBER = { 5 },
    NOTE = { 03057364 (ISSN) Cited By (since 1996): 26 Export Date: 24 April 2007 Source: Scopus CODEN: ANBOA doi: 10.1006/anbo.1996.0057 Language of Original Document: English Correspondence Address: Berninger, F.; Department of Forest Ecology; University of Helsinki; PL 24 (Unioninkatu 40) FIN-00014 Helsinki, Finland References: Aphalo, P.J., Jarvis, P.G., Do stomata respond to relative humidity? (1994) Plant Cell and Environment, 14, pp. 127-132; Beadle, C.L., Jarvis, P.G., Talbot, H., Neilson, R.E., Stomatal conductance and photosyntheis in a mature Scots pine forest. 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Cambridge: Cambridge University Press; Davies, W.J., Zhang, J., Root signals and the regulaton of growth and development of plants in drying soils (1991) Annual Review of Plant Physiolgy and Plant Molecular Biology, 42, pp. 55-76; Dolman, A.J., Stewart, J.B., Cooper, J.D., Predicting forest transpiration from climatological data (1988) Agricultural and Forest Meteorology, 42, pp. 339-353; Friend, A.D., PGEN an integrated model of leaf photosynthesis, transpiration and conductance (1995) Ecological Modelling, 77, pp. 233-255; Givinish, T., Optimal stomatal conductance, allocation of energy between leaves and roots, and the marginal costs of transpiration (1986) On the Economy of Plant Form and Function, pp. 171-213. , Givinish TJ, ed. Cambridge: Cambridge University Press; Gollan, T., Passioura, J.B., Munns, R., Soil water status affects the stomatal conductance of fully turgid wheat and sunflower leaves (1986) Australian Journal of Plant Physiology, 13, pp. 459-464; Granier, A., Lousteau, D., Measuring and modelling the transpiration of a maritime pine canopy from sap-flow data (1994) Agricultural and Forest Meteorology, 71, pp. 61-81; Guehl, J.M., Aussenac, G., Photosynthesis decrease and stomatal control of gas exchange in Abies alba Mill. in response to vapour pressure difference (1986) Plant Physiology, 13, pp. 459-464; Hall, A.E., Mathematical models of plant water loss and plant water relations (1982) Encyclopedia of Plant Physiology. 12 B Physiological Plant Ecology, pp. 589-630. , Lange OL, Nobel CB, Osmond CB, Ziegler H, eds. 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Berlin: Springer Verlag; Shuttleworth, W.J., Micrometeorology of temperate and tropical forest (1989) Philosophical Transactions of the Royal Society of London, B324, pp. 299-334; Steward, J.B., Modelling surface conductance of pine forest (1988) Agricultural Forest and Meteorology, 43, pp. 19-35; Tardieu, F., Davies, W.J., Stomatal response to abscisic acid is a function of current plant water status (1992) Plant Physiology, 98, pp. 540-545; Thornley, J.H.M., A transport-resistance model of forest growth and partitioning (1991) Annals of Botany, 68, pp. 211-226; Trejo, C.L., Davies, W.J., Drought-induced closure of Phaseolus vulgaris L. stomata precedes leaf water deficit and any increase in xylem ABA concentration (1991) Journal of Experimental Botany, 245, pp. 1507-1515; Zhang, J., Davies, W.J., Abscisic acid produced in dehydrating roots may enable the plant to measure the water status of the soil (1989) Plant, Cell and Environment, 12, pp. 73-81. },
    ABSTRACT = { The optimal regulation model by Makela, Berninger and Hari (Annals of Botany 77: 461-467, 1996) was applied to data for photosynthesis and transpiration of Scots pine during a 22-d drought period. There was a clear decrease in photosynthesis and transpiration during that period. The agreement between model and photosynthesis data was good. The residuals of photosynthesis were not systematic with respect to temperature, irradiance or water vapour deficit. However, the model initially overestimated transpiration by 50%, although there was a clear linear relationship between measured and estimated values. The results suggest that there was no decrease in photosynthetic capacity during the period, but a decrease in stomatal conductance was responsible for the changes in photosynthesis trod transpiration. The observations are similar to results in the literature. },
    KEYWORDS = { drought photosynthesis Pinus sylvestris stomatal conductance Transpiration Pinus sylvestris },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.04 },
}

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