Fig. 3.

The content of yellow pigment of safflower accumulated during four different flowering periods in four different varieties. Safflower varieties were labeled as JHEM, JH1, JHS, and JH2. Different flowering periods were indicated as a bud, initial, full, and fading stage. Data are means ± SE (n = 3). Asterisks indicate the statistical significance levels according to Student’s t-test: *P < 0.05