Fig. 3From: Phenotyping Root Systems in a Set of Japonica Rice Accessions: Can Structural Traits Predict the Response to Drought?Box-plots of the standardized relative variations of the eight selected root traits among the 17 accessions gathered in 3 response groups (RG). The symbol in brackets indicates the response group effect (** significant at 1% and ns not significant). The averages followed by the same letter do not differ statistically according to the Tukey test (p-value 0.05). I, II, III refer to response groups RG I, RG II and RG IIIBack to article page