Fruit Color Phenotype and Pigment Accumulation Characteristics of Chili Peppers(Capsicum annuum L.)
The change regularity of pigment compositions and contents of different chili pepper fruits with different colors during their development was investigated.Thechili pepper peels were initially determined using a colorimeter to identify their chromatism index(L*,a*and b*).The chlorophyll,carotenoid and anthocyanin contents of chili pepper peel were determined by spectrophotometer,and the relationship between chili pepper fruit color and pigmen change was analyzed during the develop-ment.Based on Origin 21 software,chili pepper fruit color was visualized.Component analysis,clus-ter analysis,and correlation analysis were conducted at different stages of growth and development.The results showed:(1)the CIE L*,a*,b*color space could reflect the fruit color changes during the of chili pepper fruits.Twenty-six chili peppers were divided into four color groups,where the fruit color changes were as follows:green varying to orange-yellow,purple changing to red or dark red,green changing to red or dark red,and yellowish green or milky white changing to red.(3)L*,a*,b*values of chili pepper pericarp correlated with chlorophyll,carotenoids,and anthocyanins.There were differences in changes of L*,a*,b*values in fruit color during the development of fruits from different chili pepper materials.Specifically,L*and b*were negatively correlated with fruit chloro-phyll and carotenoid content,while they were positively correlated with anthocyanin content.In con-trast,a*showed the opposite relationship.
Chili pepperFruit colorCIE L*,a*,b*Pigment contentCorrelation analysis
万方数据
维普
