Firmness was measured on whole peeled raw roots with a machine texture analyzer (Zwick- Line Z0.5, Zwick/Roel, Ulm, Germany), using a puncture method and expressed in Newton (N).
Firmness was measured on whole peeled raw roots with a machine texture analyzer (Zwick-Line Z0.5, Zwick/Roel, Ulm, Germany), using a puncture method and expressed in Newton (N).