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植物研究 ›› 1996, Vol. 16 ›› Issue (3): 340-345.

• 论文 • 上一篇    下一篇

星星草光合蒸腾特性的季节变化

阎秀峰1, 孙国荣2, 肖玮2   

  1. 1. 150040 哈尔滨, 东北林业大学森林植物生态学开放研究实验室;
    2. 150080 哈尔滨, 哈尔滨师范大学生物系
  • 收稿日期:1995-08-01 出版日期:1996-09-15 发布日期:2016-06-14
  • 基金资助:
    黑龙江省自然科学基金资助项目

SEASONAL CHANGES OF PHOTOSYNTHETIC AND TRANSPIRATION CHARACTERS OF PUCCINELLIA TENUIFLORA

Yan Xiu-feng1, Sun Guo-rong2, Xiao wei2   

  1. 1. Open Research Laboratory of Forest Plant Ecology, Northeast Forestry University, Harbin 150040;
    2. Department of Biology, Harbin Normal University, Harbin 150080
  • Received:1995-08-01 Online:1996-09-15 Published:2016-06-14

摘要: 利用芸苔属6种4变种植物的叶,开展了黄酮类化合物的薄层层析研究。叶采自生态环境、栽培条件及发育时期均相同的植株。层析图谱可分为三个大的类型,与形态分类中将本属植物划分为甘蓝型、白菜型和芥菜型相一致。结合栽培观察和细胞学资料,探讨了本属的分类问题。

关键词: 星星草, 生长年份, 光合蒸腾特性, 季节变化

Abstract: We measured the seasonal changes of photosynthetic and transpiration characters of Puc-cinellia tenuiflora, both natural growth and one to three-year planted P. tenuiflora on alkalized Songnen grassland. The curve of seasonal changes of photosynthetic rate of P. tenuiflora is one-peaked. The pohotosynthetic rate at heading stage is the maximum. The transpiration rate of P. tenuiflora decreased with the progress of fertility period, but the curve of transpiration rate of P. tenuiflora population per unit grassland area is one-peaked. The maximum values of one-year, two-year and three-year P. tenuiflora are in florescence, the maximum value of natural growth P. tenuiflora is at heading stage. The seasonal changes of water use efficiency of P. tenuiflora is one-peaked curve, the maximum values are at heading stage.

Key words: Puccinellia tenuiflora, Grown years, Photosynthetic and transpiration characters, Seasonal changes