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植物研究 ›› 2021, Vol. 41 ›› Issue (2): 168-173.doi: 10.7525/j.issn.1673-5102.2021.02.003

• 研究报告 • 上一篇    下一篇

极小种群浙江安息香的物候观测

傅国林1, 李婷婷2, 张晔华1, 文香英3, 马学初1, 吴初平2()   

  1. 1.建德市建德林场,建德 311600
    2.浙江省林业科学研究院,杭州 310023
    3.中国科学院华南植物园,天河 510650
  • 收稿日期:2020-03-05 出版日期:2021-03-20 发布日期:2021-01-05
  • 通讯作者: 吴初平 E-mail:wcp1117@hotmail.com
  • 作者简介:傅国林(1975—),男,本科,主要从事森林培育工作。
  • 基金资助:
    浙江省基础公益研究计划项目(LGN18C030004);浙江省省院合作林业科技项目(2019SY08)

Phenological Observation of the Extremely Small Population Plant Styrax zhejiangensis

Guo-Lin FU1, Ting-Ting LI2, Ye-Hua ZHANG1, Xiang-Ying WEN3, Xue-Chu MA1, Chu-Ping WU2()   

  1. 1.Forest Farm of Jiande City,Jiande 311600
    2.Zhejiang Academy of Forestry,Hangzhou 310023
    3.South China Botanical Garden,CAS,Tianhe 510650
  • Received:2020-03-05 Online:2021-03-20 Published:2021-01-05
  • Contact: Chu-Ping WU E-mail:wcp1117@hotmail.com
  • About author:FU Guo-Lin(1975—),male,bachelor degree,engaged in the forest silviculture.
  • Supported by:
    Basic Public Welfare Research Program of Zhejiang Province(LGN18C030004);Major Collaborative Project between Zhejiang Province and the Chinese Academy of Forestry(2019SY08)

摘要:

浙江安息香(Styrax zhejiangensis)分布于浙江建德林场泷江林区桃花坞,是浙江省特有的极小种群野生植物。为了更好地解析该物种的濒危原因,对浙江安息香进行物候观测,了解其开花、结实和种子生物学特征等。结果表明:浙江安息香花叶同期。花器官和花粉特征与同属植物较为类似,结实率为21%~32%。种子存在形态变异,饱满度不足等现象,以及外种皮致密坚硬导致其透水性差有可能影响其萌发。温差及连续降雨虽然会加重其落花落果。因此,保护该物种需要更多了解其花果实的特性,并加以人工辅助。

关键词: 浙江安息香, 极小种群, 物候观测

Abstract:

Styrax zhejiangensis was a species with extremely small population, and endemic in Taohuawu, Longjiang, Jiande Forest Farm, Zhejiang Province. To clarify the reason this species endangered, phenology of S.zhejiangensis was observed, including its flowering and seed setting pattern, as well as the biological characteristics of seeds. The results showed that flowers and leaves shared the same proliferation period. The characteristics of flower organs and pollen were similar to those plants of the same genus, and the seed setting rate was 21%-32%. Seeds had high morphological variations, and their insufficient plumpness and poor water permeability caused by dense and hard seed coat may affect seed germination. Abundant rainfall, and temperature differences between day and night, were two major drivers that would aggravate the falling of flowers and fruits. More attention should be paid to their seeds, flowers and fruits if we aim to conserve this endangered species.

Key words: Styrax zhejiangensis, extremely small population of wild plant, phenological observation

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