Research Article

Genotypic and Environmental Variations in Kernel Color Indices in the Main Almond (Prunus dulcis (Mill.) D.A. Webb) Cultivars Grown in North-Eastern Morocco

Figure 1

Principal component analysis (PCA) projections on PC1 and PC2. The eigenvalues are symbolized as blue segments representing traits that most affect each principal component. The 75 points plotted are cultivar mean values of each studied kernel color index: brightness index (L), redness index (a), yellowness index (b), chroma (C), hue angle (H), and metric saturation (S) of five almond cultivars grown in different sites of north-eastern Morocco (aknoul, bni hadifa, tahar souk, rislane, and sidi bouhria) during three growing seasons (2016−2018). FRD = “Ferraduel,” FRG = “Ferragnès,” FBZ = “Fournat de Brézenaud,” MAR = “Marcona,” and TUO = “Tuono.”