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Leaf photosynthetic rate per leaf dry mass

Formal name:  leaf photosynthetic rate per leaf dry mass
Local identifier:  TOP359
Synonym Term:  leaf photosynthesis per leaf dry mass
Related Term:  light saturated leaf photosynthetic rate
Related Term:  Amax
Definition:  the amount of carbon (CHEBI:carbon atom) assimilated via photosynthesis by leaves (PO:leaf) per unit leaf dry mass (TOP:leaf dry mass) and unit time
Formal Unit:  amount unit / mass unit / time unit

Comment:  Photosynthesis is in general related to leaves or active stem tissue (TOP:stem photosynthetic rate per stem dry mass) but can also be related to the shoot system (TOP:shoot photosynthetic rate per shoot dry mass).The following environmental conditions during photosynthesis measurements need to be specified: irradiance, temperature, CO2 and O2 concentration of the air, altitude or air pressure. Light saturated photosynthetic rate per leaf dry mass is a special case (Amax) characterizing the amount of carbon (CHEBI:carbon atom) assimilated via photosynthesis by leaves per unit leaf dry mass (TOP:leaf dry mass) and unit time given light saturation and typical favourable field conditions, i.e. favourable temperatures, no apparent water limitation and ambient CO2 and O2 concentrations of the air.
Reference:  after Pérez-Harguindeguy N., Díaz S., Garnier E., Lavorel S., Poorter H., Jaureguiberry P., Bret-Harte M. S., Cornwell W. K., Craine J. M., Gurvich D. E., Urcelay C., Veneklaas E. J., Reich P. B., Poorter L., Wright I. J., Ray P., Enrico L., Pausas J. G., de Vos A. C., Buchmann N., Funes G., Quétier F., Hodgson J. G., Thompson K., Morgan H. D., ter Steege H., van der Heijden M. G. A., Sack L., Blonder B., Poschlod P., Vaieretti M. V., Conti G., Staver A. C., Aquino S., Cornelissen J. H. C. (2013) New handbook for standardised measurement of plant functional traits worldwide. Australian Journal of Botany 61, 167_234


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