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园艺学报 ›› 2004, Vol. 31 ›› Issue (1): 59-47.

• 研究论文 • 上一篇    下一篇

雾培法根际CO2 对马铃薯生长和光合作用的影响

孙周平1,2;李天来1,2*;姚莉3;邹红藜1,2   

  1. (1 沈阳农业大学园艺学院, 2 辽宁省设施园艺重点实验室, 沈阳110161 ; 3 沈阳农业大学生物技术学院, 沈阳110161)
  • 收稿日期:2003-02-21 修回日期:2003-04-23 出版日期:2004-02-25 发布日期:2004-02-25

Effects of CO2 Treatment of Root Zone on Potato Growth and Photosynthesis by Areoponics Culture

Sun Zhouping1,2;Li Tianlai1,2*;, Yao Li3; Zou Hongli1,2   

  1. (1 College of Horticulture , 2 Key Laboratory of Protected Horticulture of Liaoning Province , Shenyang Agricultural University , Shenyang 110161 , China ; 3 College of Bio-Technology , Shenyang Agricultural University , Shenyang 110161 , China)
  • Received:2003-02-21 Revised:2003-04-23 Online:2004-02-25 Published:2004-02-25

摘要: 通过汽雾栽培方式对马铃薯根际连续35 d 的CO2 处理表明: 温室大气处理(CO2 380~920μL·L - 1 + O2 21 %) 和室外大气处理(CO2 380μL·L - 1 + O2 21 %) 马铃薯植株的形态特征非常接近, 其株高、叶面积、根系质量、匍匐茎数量、块茎产量以及生物量均比根际高CO2 处理(CO2 3600μL·L - 1 + O2 21 %) 明显提高, 叶片的气孔导度和胞间CO2 浓度增加, 光呼吸速率与CO2 补偿点降低, 叶片光系统Ⅱ功能改善,光合速率提高, 植株生长发育旺盛, 块茎产量增加, 说明合适的根际CO2 浓度(CO2 380~920μL·L - 1 + O2 21 %) 可能是汽雾栽培马铃薯植株生长旺盛的重要原因。

关键词: 马铃薯, 汽雾法栽培, 根际CO2 处理, 光合作用

Abstract: The root systems of potato plants ( Solanum tuberosum L. ) ‘Favorita’treated with different CO2concentrations by areoponics culture for 35 days showed an increase in plant height , leaf area , root mass , stole number , tuber mass and overall plant fresh mass for the greenhouse gas treatment (CO2 380 - 920μL·L - 1 + O221 %) and outdoor air treatment (CO2 380μL·L - 1 + O2 21 %) , compared with a high CO2 concentration treatment (CO2 3600 μL·L - 1 + O2 21 %) . In addition , there was an increase in stomatal conductance (Gs) of leaf ,intercellular CO2 concentration (Ci), net hotosynthetic rate ( Pn) and photochemical efficiency ( Fv/ Fm) of leaf , at same time there was an decrease in CO2 compensation point (Γ) , photo respiratory rate (Rp) and carboxylation efficicency (CE) for the formers. The results indicated that the appropriate CO2 concentration (CO2380 - 920μL·L - 1 + O2 21 %) in the root zone may be an important reason why the areoponics culture may advance the growth and the development of potato plant .

Key words: Potato, Areoponics culture, CO2 treatment of root zone, Photosynthesis

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