Effect of Moisture Content on Melilotus suaveolens Seed Quality During Ultra-drying Storage |
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Authors: | LIU Yan LIU Guangquan LI Qingmei DUAN Xinfang HOU Longyu |
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Affiliation: | 1. International Research and Training Center on Erosion & Sedimentation, Beijing 100048, China;China Institute of Water Resources and Hydropower Research, Beijing 100048, China 2. International Research and Training Center on Erosion & Sedimentation, Beijing 100048, China;China Institute of Water Resources and Hydropower Research, Beijing 100048, China;Northwest Agriculture and Forestry University, Yangling 712100, Shanxi, China 3. Research Institute of Forestry, Clunese Academy of Forestry, Beijing 100091, China 4. Institute of New Forestry Technology, Chinese Academy of Forestry, Beijing 100091, China |
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Abstract: | In order to enhance the seed storability and supply high-quality seeds for vegetation restoration in the arid and semi-arid regions in Northwest China, the effects of ultra-drying and accelerated aging on the physiological characterstics of Melilotus suaveolens seeds were studied. Melilotus suaveolens seeds were dried in a desiccator containing silica gel to 80, 53, 42, 33, 23 and 16g·kg<'-1> of moisture contents (MC), respectively. The parameters of the seed quality including germination energy (GE), germination percentage (GP), relative conductivity (RC), dehydrogenase activity (DA) and a-amylase activity (AA) were determined afier ultra-drying and accelerated aging. The results showed that ultra-dried seeds with 42 g,kg-1 of MC showed the minimum changes of GE and GP before and after seed aging. Moreover, ultra-dry seeds with 42 g·kg<'-1> of MC showed higher DA and AA, and lower RC than non-ultra-drying seeds. Therefore, ultra-drying to 42 g·kg<'-1> of MC was helpful for M. Suaveolens seed storage. |
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Keywords: | ultra-drying germination percentage dehydrogenase activity α-amylase activity M suaveolens seed storage |
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