园艺学报 ›› 2005, Vol. 32 ›› Issue (02): 292-294.

• 研究报告 • 上一篇    下一篇



  1. (1 河北农业大学林学院, 保定071000; 2 北京市农林科学院林业果树研究所, 北京100093)
  • 收稿日期:2004-05-10 修回日期:2004-12-23 出版日期:2005-04-25 发布日期:2005-04-25

The Effect of Shading on the Growth and Photosynthesis Characteristics inAmerican Blackberry

Yang Junxia1;Guo Baolin1;Lu Renqiang2;Zhang Jichong1   

  1. (1 Forestry College of Hebei Agricultural University , Baoding 071000, China; 2Beijing Research Institute of Pomology and Forestry, Beijing 100093, China)
  • Received:2004-05-10 Revised:2004-12-23 Online:2005-04-25 Published:2005-04-25

摘要: 在全光照和透光率50%、25%、13% 4种条件下, 对美国黑莓‘赫尔’耐荫及光合特性进行
研究, 结果表明: 全光处理的净光合速率日变化为双峰曲线, 高峰出现在9时和13时, 有“午休”现象;遮荫处理的净光合速率日变化为单峰曲线, 高峰在11时; 透光率50%时生长正常, 叶片厚度、栅栏组织、海绵组织、比叶鲜样质量、比叶干样质量、单果质量、果实可溶性固形物与全光照处理差异不显著, 叶绿素含量显著高于全光处理; 透光率在25%以下, 新梢徒长, 叶片发黄, 生长不良, 无花芽形成。表明美国黑莓具有一定的耐荫性, 适度遮荫利于美国黑莓生长发育。

关键词: 黑莓, 遮荫, 生长, 光合特性

Abstract: The shade-endurance and photosynthesis characterstics of American blackberry‘Hull’were studied under light transmittance of 100% , 50% , 25% and 13%. The result showed that the net photosynthetic rate ( Pn) had two peaks at 9: 00 and 13: 00 respectively in a day, under full light with ‘Wuxiu’
phenomenon. There was only one Pn peak appeared at 11: 00 after shading. No significant differences were found between full light and 50% light treatment in branch and leaf growth, leaf thickness, palisade and sponge tissue, fresh-leaf mass per dm2 , dry-leaf mass per dm2, per fruit mass and soluble solid content. Chlorophyll content was significantly higher in 50% light than that in full light. When light transmittance below 25% , the branches grew excessively and the leaves became yellow, and no flower buds formed. Itwas indicated that American blackberry has good shade-endurance, moderate shading is helpful to its growth and development.

Key words: Blackberry, Shading, Growth, Photosynthetic characteristics