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

ACTA HORTICULTURAE SINICA ›› 2006, Vol. 33 ›› Issue (3): 577-582.

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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

Abstract

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

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

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