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Specific root length trait

Formal name:  root length per root dry mass
Abbreviation:  SRL
Local identifier:  TOP935
Definition:  The ratio of the length (PATO:length) of roots (PO:root) to the corresponding root mass (PATO:mass) assessed after drying
Formal Unit:  length unit / mass unit

Comment:  When known, the component of the root on which the measurements have been taken should be specified: coarse root, fine root.
Reference:  Jens Kattge, Ulrike Stahl, Eric Garnier, Stefan Klotz, Ingolf Kühn