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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
FRK activity profiles in cassava tubers during tuber root development at the initial tuber stage (90 days), the tuber expanding stage (135 and 180 days), and the tuber maturity stage (225 and 270 days). Each value is the mean ± standard error of three biological replicates (n = 3).