Variation in Phenolic, Mineral, Dietary Fiber, and Antioxidant Activity across Southern Tunisian Pearl Millet Germplasm

Figure 3

Heatmap and hierarchical clustering for phenolic contents, antioxidant activities, and chemical composition of pearl millet cultivars from southern Tunisia. Genotypes names are presented on the horizontal axis; green color presents the highest contents of minerals (Mn, Cu, K, Mg, Ca, Na, Zn, and Fe), total polyphenols (PT), total phenolic acids (APT), total flavonoids (FT), fibers (NDF, ADF, and ADL), and antioxidant activities (DPPH, ABTS, and FRAP).