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Shoot nitrogen content per shoot dry mass

Formal name:  shoot nitrogen content per shoot dry mass
Local identifier:  TOP691
Synonym Term:  shoot N content per dry mass
Related Term:  shoot N content
Related Term:  shoot N concentration
Definition:  The ratio of the quantity (SEP:quantity) of nitrogen (CHEBI:nitrogen atom) in the shoot (PO:shoot system) to the corresponding shoot (PO:shoot system) mass (PATO:mass) assessed after drying
Formal Unit:  mass unit / mass unit or amount unit / mass unit

Comment:  The quantity of nitrogen 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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