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Physiological characteristics changes of Aesculus chinensis seeds during natural dehydration

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Abstract

A study was conducted to determine the physiological characteristics changes of Aesculus chinensis seeds during natural dehydration in 2003. The results showed that A. chinensis seeds were recalcitrant with being highly desiccation-sensitive. The seed moisture content of fresh fruits was higher than 60%. When the seeds were naturally dried for 30 days, their moisture content declined to 30.2% and their viability was completely lost. The seed germination percentage had a small increase at the beginning of desiccation and then decreased rapidly. The relative electrical conductivity of the A. chinensis seeds increased along with a decrease in seed moisture content. However, there was an abnormal increase in relative electrical conductivity when the seed moisture content was between 53.7% and 50.9%. Superoxide dismutase (SOD) activity decreased rapidly in the period of desiccation except for an abnormality when the seed moisture content was between 53.7% and 50.9%. Malondialdehyde (MDA) content increased slowly at the early stage of desiccation and then rose rapidly after the moisture content was below 50.9%. The soluble sugar content in seeds slowly increased with the increasing period of desiccation. The seed germination percentage was at the high level when seed moisture content was in range of 47%–60%, which suggests that this was the optimum moisture content for maintaining A. chinensis seed viability.

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Authors and Affiliations

  1. Tree Seed Center, College of Forest Resources and Environment, Nanjing Forestry University, Nanjing, 210037, P.R. China

    Yu Fang-yuan, Du Yan & Shen Yong-bao

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  1. Yu Fang-yuan
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  2. Du Yan
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  3. Shen Yong-bao
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Biography: YU Fang-yuan (1965–), male, associate professor in Tree Seed Center, College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, P. R. China

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Yu, Fy., Du, Y. & Shen, Yb. Physiological characteristics changes of Aesculus chinensis seeds during natural dehydration. J. of For. Res. 17, 103–106 (2006). https://doi.org/10.1007/s11676-006-0024-2

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  • DOI: https://doi.org/10.1007/s11676-006-0024-2

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