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Bulletin of Botanical Research ›› 1996, Vol. 16 ›› Issue (2): 208-213.

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STUDY ON PHYSIOLOGICAL ECOLOGICAL CHARACTERISTICS OF POPULUS PSEUD -SIMONII

Hou Feng-lian1, Wang Wen-zhang2, Feng Yu-long2, Hou Li-juan3, Kong Ling-wu4   

  1. 1. Jinlin Forestry College 132011;
    2. Northeast Forestry University, Harbin 150040;
    3. Mudanjiang Forstry School, Mudanjiang 157012;
    4. College of Tradstional Chinese Medicine, Habin 150040
  • Received:1995-10-01 Online:1996-06-15 Published:2016-06-14

Abstract: This paper concerns with the studies of the diurnal change of the net photosynthetic and respiratory rates of populus pseud-simonii.The results showed the change appeared as a double-peak curve.The peaks appeared at 90'clock in the morning and at 15 o'clock in the afternoon.The lowest appeared at 1 o'clock in the afternoon, in other words, minimum at noon.The diurnal change depended on the environmental factor.

Key words: Populus pseud-simonii, Net photosynthetic rate double-peak carve, Minimumat noon