Fig. 5 | Scientific Reports

Fig. 5

From: Physicochemical profiling of Bambara groundnut (Vigna subterranea L.) reveals variation in cooking quality relevant to breeding programs

Fig. 5

Pairwise correlation matrix and chord diagram illustrating the relationships among evaluated BGN seed physicochemical properties: (a) heatmap of Pearson correlation coefficients between size (SS), seed volume (SV), density (ρ), hydration capacity (HC), swelling capacity (SC), swelling index (SI), cooking time (CT), electrical conductivity (EC), potential of hydrogen (pH), lightness from black to white on a scale of zero to 100 (L*), chromaticity with no specific numeric limits (a* and b*) and (b) circular chord diagram visualizing the strength and direction of relationships among traits. Thicker ribbons indicate stronger correlations, with the width and colour of the connections highlighting the degree of association.

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