Furthermore, the L* values showed highly significant positive correlations (p < 0.01) with upper epidermal cell width, cell pinch angle, and cell area, and significant positive correlations with total chlorophyll and chlorophyll b content.
2 , the L* values of both pink and white petals showed a trend of first increasing and then decreasing.
The flavonoid and carotenoid content of both pink and white flowers showed a decreasing trend, the flavonoid and carotenoid contents of pink petals decreased by 64.23% and 77.33%, respectively, at S5 compared to S1.