Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (19): 19-24.doi: 10.11924/j.issn.1000-6850.casb15010194

Special Issue: 生物技术

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Effects of NaCl Stress on Several Physiologica Characteristics and Seedling Growth of Acer saccharinum

  

  • Received:2015-01-26 Revised:2015-03-11 Accepted:2015-03-25 Online:2015-07-28 Published:2015-07-28

Abstract: In order to study the salt-tolerance of Acer saccharinum seedling, taking one-year old seedlings of Acer saccharinum as test materials, this paper studied their biomass, photosynthesis, chlorophyll content, soluble sugar content, MDA, POD and SOD activities under the stress of different concentrations of NaCl. The results showed that salt stress inhibited the growth of seedlings, reduced chlorophyll content and photosynthesis; increased soluble sugar content and MDA; POD and SOD showed a trend of first increasing then declining. Based on the correlation analysis and principal component analysis of physiological index of salt resistance, it is determined that intercellular CO2 concentration, transpiration rate and biomass could be used as the salt-tolerance indicators of Acer saccharinum, and the salt tolerance of Acer saccharinum was blow 0.4%.