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Fig. 7 | BMC Plant Biology

Fig. 7

From: Physiological responses of Lepidium meyenii plants to ultraviolet-B radiation challenge

Fig. 7

Multiple factor analysis (MFA) of biometric and physiological data in maca. Control and UV-B irradiated plants at the end of the treatment (upper panels) and after recovery (below panels). Representation of groups of variables (a, d). Key: blue “Biometric”, Leaf, root and hypocotyl FW; yellow “Starch”, starch expressed in mg g− 1 FW and mg g− 1 FW of corresponding organ content; orange “TSS”, total soluble sugars expressed in μmol g− 1 FW and μmol g− 1 FW of corresponding organ; grey “Gas exchange”, CO2 assimilation rate (A), stomatal conductance (gs), intercellular CO2 concentration (Ci), transpiration rate (E), dark respiration (Rd), maximum (Fv/Fm) and actual (ΦPSII) efficiency of PSII photochemistry. Score plot describing the exposure times and groups of variables of the two-first principal components (b, e). Hierarchical clustering of exposure times based on their biometric and physiological traits (c, f). DOT, days of UV-B treatment

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