Fig. 2From: Non-destructive identification of single hard seed via multispectral imaging analysis in six legume speciesTwo-dimensional biplot of the first two PCs for morphological and spectral features data set in hard and soft seeds. Note: Blue color represents for hard and red for soft seed. a Acacia seyal, b Galega orientulis, c Glycyrrhiza glabra, d Medicago sativa, e Melilotus officinalis and f Thermopsis lanceolataBack to article page