不同季节红叶桃、紫叶李的光合特性研究

园艺学报 ›› 2006, Vol. 33 ›› Issue (3): 577-582.

不同季节红叶桃、紫叶李的光合特性研究

姜卫兵¹;庄　猛¹;沈志军²;宋宏峰²;曹　晶¹;李　刚¹

(¹南京农业大学园艺学院, 江苏南京210095; ²江苏省农业科学院园艺研究所, 江苏南京210014)

收稿日期:2005-08-30 修回日期:2005-11-01 出版日期:2006-06-25 发布日期:2006-06-25

Study on the Photosynthetic Characteristics of Red-leaf Peach and Purple-leaf Plum in Different Seasons

Jiang Weibing¹;Zhuang Meng¹;Shen Zhijun²;Song Hongfeng²;Cao Jing¹;Li Gang¹

(¹ College of Horticulture, Nanjing Agriculture University, Nanjing, Jiangsu 210095, China;² Institute of Horticulture, Jiangsu Academy of Agricultural Sciences, Nanjing, Jiangsu 210014, China)

Received:2005-08-30 Revised:2005-11-01 Online:2006-06-25 Published:2006-06-25

摘要/Abstract

摘要： 以绿叶桃和绿叶李品种为对照, 研究了田间条件下不同季节红叶桃、紫叶李的光合特性。结果表明: (1) 红叶桃、紫叶李的净光合速率( Pn) 在春、夏季低于绿叶品种, 而秋季较为接近, 彩叶品种与绿叶品种间的差异随季节进程不断减小; ( 2) 红叶桃、紫叶李的表观量子效率(AQY) 和羧化效率(CE) 在春、夏季均显著低于对应的绿叶品种, 秋季时红叶桃和紫叶李的表观量子效率高于绿叶品种, 羧化效率与绿叶品种接近; (3) 红叶桃、紫叶李的光补偿点(LCP) 在春季和夏季显著高于绿叶品种, 秋季时则显著低于绿叶品种, 光饱和点(LSP) 始终高于或接近于绿叶品种; (4) 红叶桃、紫叶李的光合色素含量与绿叶品种差异较小, 但其花色素苷含量始终比绿叶品种高许多; (5) 红叶桃、紫叶李光呼吸(Rp)均低于绿叶桃和绿叶李。

关键词: 桃, 李, 观叶树木, 季节, 光合特性

Abstract: The photosynthetic characteristics of red-leaf peach and purple-leaf plum were studied with the green-leaf peach and green-leaf plum varieties as control in field in different seasons. The result showed that: (1) The Pn of red-leaf peach and purple-leaf plum was significantly lower than that of green-leaf peach
and green-leaf plum in spring and summer without significant difference in autumn, and the difference between two specieswas gradually reduced from sp ring to autumn; (2) Apparent quantum yield (AQY) and carboxylation efficiency (CE) of red-leaf peach and purple-leaf plum were significantly lower than that of green-leaf peach and green-leaf plum in spring and summer. The AQY of red-leaf peach and purple-leaf plum was higher than that of green-leaf cultivars, and CE was similar between two species in autumn; (3) Light compensation point (LCP) of red-leaf peach and purple-leaf plum was significantly higher than that of green-leaf cultivars in sp ring and summer, but significantly lower than that in autumn. Light saturation point (LSP) of red-leaf peach and purple-leaf plum were always higher than that of green-leaf cultivars or similar to them; (4)The content of photosynthetic pigment was not significantly different between the red-leaf peach and green-leaf peach, but the content of anthocyanin of the red-leaf peach and the purple-leaf plum was always higher than that in green-leaf cultivars; (5) Photo respiration (Rp ) of red-leaf peach and purple-leaf plum was significantly lower than opposite green-leaf cultivars as control.

Key words: Peach, Plum, Tree of ornamental leaf, Season, Photosynthetic characters

姜卫兵;庄　猛;沈志军;宋宏峰;曹　晶;李　刚. 不同季节红叶桃、紫叶李的光合特性研究[J]. 园艺学报, 2006, 33(3): 577-582.

Jiang Weibing;Zhuang Meng;Shen Zhijun;Song Hongfeng;Cao Jing;Li Gang. Study on the Photosynthetic Characteristics of Red-leaf Peach and Purple-leaf Plum in Different Seasons[J]. ACTA HORTICULTURAE SINICA, 2006, 33(3): 577-582.

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