Volume 25 Issue 3
Jun.  2018
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MA Hai-yan, LIN Song-ming, XU Ying-chun, LI Yong-rong, CHEN Yong-hui. Salt(NaCl) stress on growth,ion uptake,and transport of (Taxodium distichum×T. mucronatum)×T.mucronatum ‘Zhongshansha’ breeding clones[J]. Journal of Zhejiang A&F University, 2008, 25(3): 319-323.
Citation: MA Hai-yan, LIN Song-ming, XU Ying-chun, LI Yong-rong, CHEN Yong-hui. Salt(NaCl) stress on growth,ion uptake,and transport of (Taxodium distichum×T. mucronatumT.mucronatum ‘Zhongshansha’ breeding clones[J]. Journal of Zhejiang A&F University, 2008, 25(3): 319-323.

Salt(NaCl) stress on growth,ion uptake,and transport of (Taxodium distichum×T. mucronatumT.mucronatum ‘Zhongshansha’ breeding clones

  • Received Date: 2007-06-11
  • Rev Recd Date: 2007-09-12
  • Publish Date: 2008-06-10
通讯作者: 陈斌, bchen63@163.com
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    沈阳化工大学材料科学与工程学院 沈阳 110142

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Salt(NaCl) stress on growth,ion uptake,and transport of (Taxodium distichum×T. mucronatumT.mucronatum ‘Zhongshansha’ breeding clones

Abstract: Growth, ion uptake, and transport of two (Taxodium distichum×T. mucronatum)×T.mucronatum ‘Zhongshansha’ breeding clones, No.146 (with relatively strong salt resistance) and No.24 (with relatively weak salt resistance), were compared under hydroponic culture conditions. A pot experiment design with treatments of clones (No.24 and No.146), NaCl concentrations of (3.0, 3.5, 4.0, and 4.5 g·L-1 with a control of 0 g·L-1), and five replication. Results indicated that compared with the control, total dry mass and aboveground weights of the two T. ‘Zhongshansa’ breeding clones treated with NaCl decreased. Other results included: 1) root dry mass of No.24 decreased significantly(PP-1); 2) compared with the control, the root-shoot ratio increment of No.146 treated with NaCl at lower concentrations (3.5 g·L-1) was larger than No.24; 3) relative growth of No.146 decreased at lower concentrations (3.0 and 3.5 g·L-1), but not as much as at high concentrations; and the relative growth of No.24 was opposite of No.146. In treatments with NaCl, root selectivity toward K+ of No.146 was stronger significantly(P+ in leaves and the Na+/K+ value of No.146 were lower significantly(P+ were important reasons why clone No.146 had a stronger salt resistance.

MA Hai-yan, LIN Song-ming, XU Ying-chun, LI Yong-rong, CHEN Yong-hui. Salt(NaCl) stress on growth,ion uptake,and transport of (Taxodium distichum×T. mucronatum)×T.mucronatum ‘Zhongshansha’ breeding clones[J]. Journal of Zhejiang A&F University, 2008, 25(3): 319-323.
Citation: MA Hai-yan, LIN Song-ming, XU Ying-chun, LI Yong-rong, CHEN Yong-hui. Salt(NaCl) stress on growth,ion uptake,and transport of (Taxodium distichum×T. mucronatumT.mucronatum ‘Zhongshansha’ breeding clones[J]. Journal of Zhejiang A&F University, 2008, 25(3): 319-323.

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