初夏叶面喷施KH2PO4和蔗糖对红叶桃叶片色素变化及净光合速率的影响

doi:10.11707/j.1001-7488.20110325

林业科学 ›› 2011, Vol. 47 ›› Issue (3): 170-174.doi: 10.11707/j.1001-7488.20110325

初夏叶面喷施KH₂PO₄和蔗糖对红叶桃叶片色素变化及净光合速率的影响

徐莉莉, 姜卫兵, 韩健, 翁忙玲, 程春燕, 化香平

南京农业大学园艺学院南京 210095

收稿日期:2010-08-08 修回日期:2010-09-19 出版日期:2011-03-25 发布日期:2011-03-25
通讯作者: 姜卫兵

Effects of Foliage Spray of KH₂PO₄ and Socrose Solution on Changes of Pigments and Net Photosynthetic Rate in Leaves of Red-leaf Peach in Early Summer

Xu Lili, Jiang Weibing, Han Jian, Weng Mangling, Cheng Chunyan, Hua Xiangping

College of Horticulture, Nanjing Agricultural University Nanjing 210095

Received:2010-08-08 Revised:2010-09-19 Online:2011-03-25 Published:2011-03-25

摘要/Abstract

关键词: 红叶桃, KH₂PO₄, 蔗糖, 花色素苷, 光合色素, 净光合速率

Abstract:

Potted seedlings of 3-year-old red-leaf peach 'tsukuba-6’ were used to study pigments content, soluble sugar and starch content, activity of phenylalanine ammonia-lyase (PAL), and net photosynthetic rate in leaves with the foliar spray of KH₂PO₄ and sucrose solution during the regreening of red-leaf in early summer. The results showed that, both KH₂PO₄ and sucrose solution promoted accumulation of anthocyanin (Ant) of red-leaf peach remarkably, increased the ratio of Ant, chlorophyll (Ant/Chl), the soluble sugar, starch content and activity of PAL in leaves. KH₂PO₄ also improved net photosynthetic rate(P_n) of red-leaf peach. Furthermore, of all the treatments, 0.3% KH₂PO₄ solution or 0.5% sucrose solution was best in promoting leaf-colored. The foliar spray of KH₂PO₄ or sucrose solution was an economic and easy method to alleviate regreening of red-leaf peach in summer for urban greening management.

Key words: red-leaf peach, KH₂PO₄, sucrose, anthocyanin, photosynthetic pigments, net photosynthetic rate

中图分类号:

S662.1

徐莉莉;姜卫兵;韩健;翁忙玲;程春燕;化香平. 初夏叶面喷施KH₂PO₄和蔗糖对红叶桃叶片色素变化及净光合速率的影响[J]. 林业科学, 2011, 47(3): 170-174.

Xu Lili;Jiang Weibing;Han Jian;Weng Mangling;Cheng Chunyan;Hua Xiangping. Effects of Foliage Spray of KH₂PO₄ and Socrose Solution on Changes of Pigments and Net Photosynthetic Rate in Leaves of Red-leaf Peach in Early Summer[J]. Scientia Silvae Sinicae, 2011, 47(3): 170-174.

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初夏叶面喷施KH₂PO₄和蔗糖对红叶桃叶片色素变化及净光合速率的影响

Effects of Foliage Spray of KH₂PO₄ and Socrose Solution on Changes of Pigments and Net Photosynthetic Rate in Leaves of Red-leaf Peach in Early Summer

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