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阔叶槭物候特征及播种育苗试验
Phenological Characteristics and Seeding Experiments of Acer amplum Rehd.
  
DOI:
中文关键词:  阔叶槭  物候  变色  播种
英文关键词:Acer amplum Rehd.   Phenology  Discoloration  Sowing
基金项目:江苏省中国科学院植物研究所“绿手指”基金项目。
作者单位
刘科伟,杨 虹,杨 军 (江苏省中国科学院 植物研究所江苏 南京 210014) 
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中文摘要:
      为了合理利用和开发阔叶槭资源,本文通过多年观测总结了阔叶槭的物候特征和变色特性,并从种子采集、种子处理、基质选择、播种等方面探索了阔叶槭的育苗方法。结果表明:阔叶槭3月下旬到4月上中旬展叶并开花结果,变色时间为11月初至12月初,落叶时间为11月中旬至12月上中旬;低温湿沙层积处理可以解除其休眠特性;采用体积配比为珍珠岩∶河沙∶草炭=1∶2∶2的基质进行播种育苗可以有效提高阔叶槭的出苗率。
英文摘要:
      In order to utilize and develop resources of Acer amplum Rehd. reasonably, the phenology and color change characteristics of Acer amplum Rehd. were observed and summarized for many years, and the seedling raising methods of Acer amplum Rehd. were explored in the aspects of seed collection, seed treatment, substrate selection and sowing. The results showed that from late March to mid April, Acer amplum Rehd. developed leaves and blossomed and fruited, the discoloration time was from early November to early December, and the defoliation time was from middle of November to middle of December; The dormancy characteristics of Acer amplum Rehd. could be relieved under low temperature and wet sand stratification treatment; the seedling emergence rate of Acer amplum Rehd. could be effectively improved by using the substrate of perlite∶ river sand∶ peat = 1∶2∶2. ;
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