Changes of major pigments of color sweet pepper during growth periods.

The dynamic changes of chlorophyll,carotenoid,anthocyanion and flavonoid were conducted during growth periods with four different fruit color of color sweet pepper.The results showed that contents of chlorophyll increased gradually before changing color stage,attained the maximum at changing color stage,then decreased;contents of chlorophyll of the green color or white color fruit at marketable mature stage gradually increased with maturation,attained the maximum at physiological mature stage;contents of carotenoid of the yellow color fruit at marketable mature stage increased slowly before changing color stage,then decreased except contents of anthocyanion of yellow-orange of fruit at physiological mature stage changed little during growth periods;contents of anthocyanion of the red fruit at physiological mature stage increased slowly before changing color stage,then quickly increased,and contents of flavonoid were decreased before changing color stage,then increased gradually.The analysis of correlation showed that contents of chlorophyll had negatively significant correlation with contents of carotenoid,anthocyanion and flavonoid;contents of carotenoid had positively significant correlation with contents of anthocyanion and negatively significant correlation with contents of flavonoid;contents of anthocyanion had negatively but not significant correlation with contents of flavonoid.