Fig. 8

Principal component analysis (PCA) for 25 native cannabis populations in Iran. (A) Illustration of the relationship between 14 morphological and phenological traits. The contribution of each trait to the principal component is visualized using a specific color, which is represented by a color bar alongside the plot. (B) Indicating the extent of influence of each population (female and male) on the formation of two principal components. (C) Illustration of the distribution of populations (female and male) in four parts and highlights the role and importance of variables (vectors) in distinguishing populations and different data patterns. (D) Illustrating the relationship between eight traits with high breeding values and female plants distribution. Abbreviations; GVP: GV Point, SFFI: Start Flower Formation Time in Individuals, SF10I: Start 10% Flowering Time in Individuals (10% of bracts formed), FT50I: Flowering Time 50% in Individuals (50% of bracts formed), LMI: Length of Main Inflorescence, PT: Plant Type (1 to 4), SDH: Stem Diameter on Harvest day, HH: Height on Harvest day, NNH: Number of Nodes on the main stem on Harvest day, LIMTH: Length of Internode in the Middle Third of the main stem on Harvest day, NLS: Number of Lateral Shoot, DWF: Dry Weight of Flowers, TDW: Total Dry Weight, RGR: Relative Growth Rate, F: Female and M: Male