紫叶矮樱叶片色素性质及其光合特性研究

中国农学通报 ›› 2005, Vol. 21 ›› Issue (2): 225-225.

紫叶矮樱叶片色素性质及其光合特性研究

吕福梅,沈向,王东生,曲晓玲,李亚蒙

出版日期:2005-02-05 发布日期:2005-02-05

Study on the Pigments in Prunus×Cistena ‘Pissardii’ and its Photosynthetic Characters

LV Fu-mei, Shen Xiang, Wang Dongsheng, Qu Xiaoling, Li Yameng

Online:2005-02-05 Published:2005-02-05

摘要/Abstract

摘要： 测定了紫叶矮樱(Prunus×Cistena ‘Pissardii’)叶片色素含量年变化动态。春秋两季花青苷的含量较高，而叶绿素含量则是在夏季最高。Cu2+对叶縁素影响最大，使其吸光度值增加23%，Fe3+对花青素影响最大，可使其吸光度值增加10.9%。色素在光下不稳定，光照越强，分解越快；使用LI-6400便携式光合仪测定了紫叶矮樱(Prunus×Cistena ‘Pissardii’)的光合特性，净光合速率日变化及年周期变化均呈双峰曲线。一天中的最高峰出现在上午10时左右，下午15时左右出现第二个较小的峰；年周期变化，6、7月份净光合速率最量旺盛，8月份最低，9月份出现第二个峰。蒸腾速率的日变化及年变化均呈单峰曲线，一天中，中午12时左右达到最高峰；而一年中，7、8月份最高。

Abstract: The experiment determined the dynamic change of the pigments in the leaves of Prunus×Cistena ‘Pissardii’ .The content of anthocyanin is higher in spring and autumn. But the content of chlorophyll is higher in summer. Cu2+ and Fe3+ can improve the absorbance value of chlorophyll 23% and anthocyanin 10.9% respectively. The pigments are unstable under light, the stronger the light is, the more quickly they decompose.Use the LI-6400 portable photosynthesis system to detect the photosynthetic characters of Prunus×Cistena ‘Pissardii’. Double peaks appear in the curve of diurnal and annual variation of photosynthetic rate and one peak in the curve of transpiration rate. The highest peak in a day was appeared on 10:00 A.M. in photosynthetic rate curve and on 12:00 in transpiration rate curve. In a year the highest peak appears in June and August.

吕福梅,沈向,王东生,曲晓玲,李亚蒙. 紫叶矮樱叶片色素性质及其光合特性研究[J]. 中国农学通报, 2005, 21(2): 225-225.

LV Fu-mei, Shen Xiang, Wang Dongsheng, Qu Xiaoling, Li Yameng. Study on the Pigments in Prunus×Cistena ‘Pissardii’ and its Photosynthetic Characters[J]. Chinese Agricultural Science Bulletin, 2005, 21(2): 225-225.