Negative effect of removing pulp from unripe fleshy fruits: seed germination pattern of Celtis sinensis in relation to the temporal context of fruit consumption

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• 作者：Tetsuro Yoshikawa (1)
  Yuji Isagi (2)
  
• 关键词：Fruit maturation ; Germination percentage ; Germination timing ; Hackberry ; Sowing experiment
• 刊名：Journal of Forest Research
• 出版年：2014
• 出版时间：August 2014
• 年：2014
• 卷：19
• 期：4
• 页码：411-416
• 全文大小：241 KB
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• 作者单位：Tetsuro Yoshikawa (1)
  Yuji Isagi (2)
  
  1. Ecological Environment Research Office, Graduate School of Agriculture and Life Science, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657, Japan
  2. Forest Biology Laboratory, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
  
• ISSN：1610-7403

文摘

We explored the temporal effects of fruit consumption on the subsequent seed germination pattern of a fleshy-fruited tree, the Chinese hackberry (Celtis?sinensis). Via nursery-based sowing experiments, we investigated (1) how pulp removal affected seed germination patterns at the different stages of fruit maturation, and (2) how the timing of seed dispersal (August, October, and December) affected the germination patterns of seeds from ripe fruits after the removal of pulp. We found that the removal of pulp from around the seeds of ripe fruit had no effect on the percentage and timing of germination. In contrast, the removal of pulp from seeds of unripe fruits largely reduced the germination percentage. The time of sowing did not affect the germination percentage, whereas the timing of germination was delayed for seeds that were sown later or under shaded environments.