果实的有无对桃叶片净光合效率及相关生理反应的影响

园艺学报 ›› 2005, Vol. 32 ›› Issue (1): 11-14.

果实的有无对桃叶片净光合效率及相关生理反应的影响

朱亚静;李绍华;王红清;姜全

(¹ 中国科学院植物研究所, 北京100093; ² 中国农业大学农学与生物技术学院, 北京100094; ³ 北京市农林科学院林业果树研究所, 北京100093)

收稿日期:2004-02-24 修回日期:2004-11-25 出版日期:2005-02-25 发布日期:2005-02-25

Effect of Sink-source Change on Net Photosynthesis and Rela ted PhysiologicalResponse in Peach Trees ( Prunus persica )

Zhu Yajing;Li Shaohua;Wang Hongqing;Jiang Quan

(¹ Institute of B otany, The Chinese Academy of Sciences, Beijing 100093, China; ²College of Agronomy and Biotechnology, China Agricultural University, Beijing 100094, China; ³ Institute of Forestry and Fruit Research, Beijing Academy of Agricultural Sciences, Beijing 100093, China)

Received:2004-02-24 Revised:2004-11-25 Online:2005-02-25 Published:2005-02-25

摘要/Abstract

摘要： 将‘燕红’桃在果核硬化期和果实最后迅速生长期留果对照和去果比较, 去果(库) 后叶片(源) 净光合速率( P_n) 、气孔导度( G_s) 和蒸腾速率( E) 降低, 叶片温度( T_leaf) 升高, 对细胞间隙
CO₂浓度(Ci) 无显著影响。去果对Pn、Gs、E和Tleaf的影响主要发生在9: 00～16: 00之间, 且在中午前后一段时间里影响最显著。研究叶片P_n与G_s之间的关系表明, 当G_s值小于60 mmol·m ^{- 2} ·s^{- 1}时, 二者呈极显著正相关。此外, 留果对照和去果处理间叶片Pn差值与T_leaf差值呈显著或极显著的正相关。去果降低库力, 减少叶片G_s并导致叶片温度的增加可能是源叶P_n降低的关键因素。

关键词: 桃, 库源关系, 光合作用, 叶片温度

Abstract: The effect of defruiting on source leaf net photosynthesis ( Pn) and related physiological response was investigated on ‘Yanhong’peach trees ( Prunus persica) during the fruit stone hardening and final fruit rap id growth stage. The results showed that Pn, stomatal conductance (Gs) and transp iration ( E)
in source leaves decreased significantly while leaf temperature ( Tleaf ) increased from defruiting trees as compared with those from fruiting ones. There was, however, no significant difference of substomatal CO₂ (Ci)
between fruiting and defruiting treatments. The effect of reducing the sink activity by defruiting treatment on Pn, Gs, E and Tleaf appeared during 9: 00 and 16: 00. The relationship between Pn and Gs was significantly positive only when Gswas less than 60 mmol·m^{- 2} ·s^{- 1}. The difference of Pn between fruiting and defruiting increased with the increasing difference of Tleaf between defruiting and fruiting treatments. It is suggested that an increasing Tleaf , resulting from the stomatal closure, may be a key factorwhich leads the decrease of leaf Pn in reducing the sink activity in fruit trees.

Key words: Peach, Sink-source, Photosynthesis, Leaf temperature

中图分类号:

S662.1

朱亚静;李绍华;王红清;姜全. 果实的有无对桃叶片净光合效率及相关生理反应的影响[J]. 园艺学报, 2005, 32(1): 11-14.

Zhu Yajing;Li Shaohua;Wang Hongqing;Jiang Quan. Effect of Sink-source Change on Net Photosynthesis and Rela ted PhysiologicalResponse in Peach Trees ( Prunus persica )[J]. ACTA HORTICULTURAE SINICA, 2005, 32(1): 11-14.

[1]	翟含含, 翟宇杰, 田义, 张叶, 杨丽, 温陟良, 陈海江. 桃SAUR家族基因分析及PpSAUR5功能鉴定[J]. 园艺学报, 2023, 50(1): 1-14.
[2]	袁馨, 徐云鹤, 张雨培, 单楠, 陈楚英, 万春鹏, 开文斌, 翟夏琬, 陈金印, 甘增宇. 猕猴桃后熟过程中ABA响应结合因子AcAREB1调控AcGH3.1的表达[J]. 园艺学报, 2023, 50(1): 53-64.
[3]	邢柱东, 吕福堂, 郭尚敬, 张演义. 新品种‘聊大红金’桃[J]. 园艺学报, 2023, 50(1): 225-226.
[4]	杨兴旺, 王海波, 王莹莹, 王小龙, 王志强, 刘培培, 刘万春, 王孝娣. 中熟抗寒桃新品种‘中农甘爽’[J]. 园艺学报, 2022, 49(S2): 15-16.
[5]	杨兴旺, 王海波, 王莹莹, 张艺灿, 王宝亮, 刘培培, 史祥宾, 刘万春, 王孝娣. 中熟抗寒桃新品种‘中农白干’[J]. 园艺学报, 2022, 49(S2): 17-18.
[6]	杨兴旺, 刘凤之, 王海波, 王莹莹, 王志强, 史祥宾, 冀晓昊, 刘万春, 王孝娣. 中熟抗寒桃新品种‘中农寒水蜜’[J]. 园艺学报, 2022, 49(S2): 19-20.
[7]	杨兴旺, 刘凤之, 王海波, 王莹莹, 张艺灿, 李鹏, 王小龙, 刘万春, 王孝娣. 晚熟抗寒桃新品种‘中农秋香’[J]. 园艺学报, 2022, 49(S2): 21-22.
[8]	王莹莹, 刘立常, 刘志伍, 杨兴旺, 刘万春, 王孝娣, . 极晚熟桃新品种‘中农冬蜜’[J]. 园艺学报, 2022, 49(S2): 23-24.
[9]	王莹莹, 刘立常, 刘志伍, 杨兴旺, 刘万春, 王孝娣, . 小果油桃新品种‘中农珍珠’[J]. 园艺学报, 2022, 49(S2): 25-26.
[10]	吴延军, 刘庆忠, 陈鸿才, 戚行江, 朱东姿, 郑家祥, 曹学敏, 方丹燕. 甜樱桃新品种‘江南锦’[J]. 园艺学报, 2022, 49(S2): 29-30.
[11]	张晓明, 闫国华, 周宇, 王晶, 段续伟, 吴传宝, 张开春. 甜樱桃砧木新品种‘京春2号’[J]. 园艺学报, 2022, 49(S2): 31-32.
[12]	宋放, 陈奇, 袁炎良, 陈沙, 尹海军, 蒋迎春, . 黄肉猕猴桃新品种‘先沃1号’[J]. 园艺学报, 2022, 49(S2): 47-48.
[13]	齐永杰, 高正辉, 马娜, 王清明, 柯凡君, 陈钱, 徐义流, . 黄肉抗溃疡病猕猴桃新品种‘皖农金果’[J]. 园艺学报, 2022, 49(S2): 49-50.
[14]	张慧琴, 楼国荣, 陆玲鸿, 古咸彬, 宋根华, 谢鸣. 黄肉中华猕猴桃新品种‘金义’[J]. 园艺学报, 2022, 49(S2): 51-52.
[15]	季琳琳, 陈素传, 吴志辉, 常君, 韩文妍, 陶汝鹏. 早花山核桃新品种‘宁国山核桃2号’[J]. 园艺学报, 2022, 49(S2): 53-54.