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Volume 17 Issue 4
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Article Navigation >  Forest Research  > 2004 >  17(4): 479-483

Citation:
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Study on the Root Growth and Photosynthesis Characteristics of the Tree Peony after Rejuvenation

  • 1.

    Flowers Research and Development Center, Research Institute of Forestry, CAF, Beijing100091, China

  • 2.

    Beijing Forestry University, Beijing100083, China

  • Received Date: 2003-05-12
  • The root nutrients and growth of tree peony were studied after rejuvenation. Changes were taken place in the content of peony root whether it had flowered or not. The contents of starch, N, P, K and Mg were reduced while the contents of Ca and dissociated S increased. New roots were mainly distributed in 10～30 cm soil and the quantity of new roots was more in autumn than in summer. In the first year of rejuvenation, the curve of diurnal variation of net photosynthetic rate (Pn) in peony leaves demonstrated a single peak appearing at noon in spring (May) and demonstrated two peaks in summer (July).
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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Study on the Root Growth and Photosynthesis Characteristics of the Tree Peony after Rejuvenation

  • 1. Flowers Research and Development Center, Research Institute of Forestry, CAF, Beijing100091, China
  • 2. Beijing Forestry University, Beijing100083, China
  • Received Date: 2003-05-12

Abstract: The root nutrients and growth of tree peony were studied after rejuvenation. Changes were taken place in the content of peony root whether it had flowered or not. The contents of starch, N, P, K and Mg were reduced while the contents of Ca and dissociated S increased. New roots were mainly distributed in 10～30 cm soil and the quantity of new roots was more in autumn than in summer. In the first year of rejuvenation, the curve of diurnal variation of net photosynthetic rate (Pn) in peony leaves demonstrated a single peak appearing at noon in spring (May) and demonstrated two peaks in summer (July).

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