Study on the Photosynthesis Character of Catharanthus roseus and Catharanthus roseus cv.Albus in Glasshouse

Daily change of net light-photosynthetic rate,chlorophyll contention,and light-photosynthetic rate curves of Catharanthus roseus and Catharanthus roseus cv.Albus in glasshouse.were studied and photosynthesis character were analyzed and compared in this study.The results showed that chlorophyll content of Catharanthus roseus was higher than that of Catharanthus roseus cv.Albus;photosynthetic rate of Catharanthus roseus was higher than that of Catharanthus roseus cv.Albus;Catharanthus roseus belongs to photophilous plant;the trend of daily change of photosynthetic rate were same between Catharanthus roseus and Catharanthus roseus cv.Albus were both single peak.