Upon further examination of subsequent PCs and coloring the samples based on salinity levels, a clear trend regarding this feature was detected in the PC2/PC3 biplot and, especially along PC3, representing 10.81% of the total variance of the dataset ( Figure 5 ).
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Effect of saline irrigation and plant-based biostimulant application on fiber hemp (<i>Cannabis sativa</i> L.) growth and phytocannabinoid composition.
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Finally, a further inspection of the next PCs facilitated the identification of an interesting trend along PC7 (1.97% of the total variance), as reported in Figure 5 .
Additionally, the slope coefficients of all tested regression functions were highly significant, with p-values between 0.003 and 0.024.