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Leaf boron content per leaf dry mass

Formal name:  leaf boron content per leaf dry mass
Local identifier:  TOP450
Synonym Term:  leaf B content per dry mass
Related Term:  leaf B content
Related Term:  leaf B concentration
Definition:  The ratio of the quantity (SEP:quantity) of boron (CHEBI:boron atom) in the leaf (PO:leaf) or component thereof, i.e. leaf lamina or leaflet (PO:leaf lamina, PO:leaflet) per respective unit dry mass (TOP:leaf dry mass, TOP:leaf lamina dry mass, TOP:leaflet dry mass)
Formal Unit:  mass unit / mass unit or amount unit / mass unit

Comment:  The quantity of boron can be expressed either as a mass (with mass unit, e.g. gram) or as an amount (with amount unit, e.g. mol). The term concentration is polysemic and we suggest to not use it in this context.
Reference:  Eric Garnier, Jens Kattge, Stefan Klotz, Ingolf Kühn, Ulrike Stahl


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