葡萄试管苗不同叶位叶片光合与呼吸的特性

园艺学报 ›› 2004, Vol. 31 ›› Issue (5): 637-640.

葡萄试管苗不同叶位叶片光合与呼吸的特性

陈佰鸿^1,2;李新生²;曹孜义³;赵长增¹;黄永红¹

(¹甘肃农业大学园艺系, 兰州730070 ; ² 陕西理工学院陕西省资源生物重点实验室, 汉中723001 ; ³ 甘肃农业大学农学院, 兰州730070)

收稿日期:2004-04-18 修回日期:2004-09-21 出版日期:2004-10-25 发布日期:2004-10-25

Studies on Photosythetic and Respiratory Characters of Different Leaf Positions in Grape Plantlet in Vitro

Chen Baihong¹; Li Xinsheng²;Cao Ziyi³;Zhao Changzen¹;Huang Yonghong¹

(¹ Horticultural Department , Gansu Agricultural University , Lanzhou 730070 , China ; ² Bio-Resources Key Laboratory of Shaanxi Province , Shaanxi College of Science and Engineering , Hanzhong 723001 , China ; ³ College of Agronomy ,Gansu Agricultural University , Lanz hou 730070 , China)

Received:2004-04-18 Revised:2004-09-21 Online:2004-10-25 Published:2004-10-25

摘要/Abstract

摘要： 用CIRA - 2 型光合测定仪, 采用密闭系统落差法测定‘红地球’葡萄试管苗不同叶位的净光
合速率(Pn) 和呼吸速率(Rd) 。结果表明, 葡萄试管苗具有一定的光合能力, Pn值随叶位的升高而降低, Rd 随叶位的升高而升高, CO₂浓度的升高具有提高叶片光合速率和抑制呼吸作用的双重作用。随光强度的增大, 叶片的光合能力明显提高; 随温度的升高, 叶片的Rd 均呈上升趋势, 但Pn 呈现出先升后降的趋势。不同叶位的CO₂补偿点随温度的升高而提高。

关键词: 葡萄, 试管苗, 叶位, 光合作用, 呼吸

Abstract: By the way of full of the airtight system , the Pn and Rd of different positions of leaves of ‘Red Globe’grape plantlet s were determined by Combined Inf rared Gas Analysis System. The results showed that grape plantlets have a certain ability of photosynthesis. The leaves on the higher position have
the lower value of net photosynthesis rate (Pn) but have the higher respiratory rate (Rd) . The increased concent ration of CO₂ can enhance the rate of net photosynthesis , meanwhile , rest rain respiration , and obviously , the Pn was improved due to the increasing of light intensity. With the rise of temperature , all the Rd of leaves tended to increase , but the Pn increased first and then decreased. Compensation point of CO₂of leaves in different leaf positions increased with the temperature increasing.

Key words: Grape, Plantlet, Leaf position, Photosythetic, Respiratory

中图分类号:

S 663.1

陈佰鸿;李新生;曹孜义;赵长增;黄永红. 葡萄试管苗不同叶位叶片光合与呼吸的特性[J]. 园艺学报, 2004, 31(5): 637-640.

Chen Baihong;Li Xinsheng;Cao Ziyi;Zhao Changzen;Huang Yonghong. Studies on Photosythetic and Respiratory Characters of Different Leaf Positions in Grape Plantlet in Vitro[J]. ACTA HORTICULTURAE SINICA, 2004, 31(5): 637-640.

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