Flower color and pigments in yellow-flowered Pelargonium section Hoarea

研究了天竺葵黄花的特征，并对其色素组成和含量进行了鉴定。亲本的花瓣颜色为黄色和黄橙色，而F1植株的花瓣颜色为白色、黄色、黄橙色和橙色。所有种属的类胡萝卜素以叶黄素为主（50 ~ 90%），其次为β-胡萝卜素，次要成分为未鉴定的类胡萝卜素。颜色的差异似乎是由于总类胡萝卜素浓度的变化和少量类胡萝卜素浓度的微小变化。

The yellow-flowered characteristics and identify the yellow pigment in Pelargonium section Hoarea for its pigment composition and content were investigated. The petals of parents had yellow and yellow-orange color, whereas those F1 plants had varied from white, yellow, yellow-orange and orange color. The major carotenoids of all species were lutein(50-90%) together withβ-carotene and the unidentified carotenoods as minor component. The difference in color appeared to be due to the variation in the total carotenoid concentration and small changes in the concentration of the minor carotenoids.