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Bulletin of Botanical Research ›› 2018, Vol. 38 ›› Issue (1): 7-13.doi: 10.7525/j.issn.1673-5102.2018.01.002

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Study on The Seed Biological Characteristics of Chimonanthus praecox of Zhejiang Province

DU Hui-Cong, ZHANG Ying, TIAN Min, WANG Cai-Xia   

  1. Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Fuyang 311400
  • Received:2017-07-28 Online:2018-01-15 Published:2018-01-06
  • Supported by:
    Agricultural projects of the public interest technology research of Science Technology Department of Zhejiang Province(2016C32030)

Abstract: To investigate the seed biological characteristics of wild Chimonanthus praecox of Zhejiang Province and improve germination rate,which provided the reference for conservation and utilization.The result showed that the 1000-seed weight was about 396.98 g, water content of the seed was about 15.66%, the viability was about 91%.The germination inhibitor of Ch.praecox mainly exist in kernel,the inhibitory methanol crude extracts was stronger than aqueous crude extracts. The exist of dense and hard seed coat and germination inhibitor make the highest seed germination rate is less than the seed lots viability and also influence the germination uniformity.Seed of soaking after pricked can improve the seed structure and in favor of germination.

Key words: Chimonanthus praecox, wild plant, biological characteristics, seed viability

CLC Number: