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Scientia Silvae Sinicae ›› 2008, Vol. 44 ›› Issue (10): 76-81.doi: 10.11707/j.1001-7488.20081013

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Difference of the Main Chemical Substances in Populus deltoides Leaves and Its Resistance to Tetra lobulifera

Pan Huixin,Liu Xiaoyu,Tang Jingen,Yan Aojin,Xie Yinfeng,Huang Minren   

  1. (Nanjing Forestry University Nanjing 210037)
  • Received:2007-01-24 Revised:1900-01-01 Online:2008-10-25 Published:2008-10-25

Abstract:

The variation of the content of soluble sugar, protein and total phenolics in leaves of 18 clones of Populus deltoides at seedling stage was measured, and the relationship with the clones' resistance to Tetra lobuliferawas analyzed. The results showed that there was significant difference in the contents of soluble sugar, protein and total phenolics in the leaves among the clones. Correlation analysis indicated that the contents of soluble sugar and total phenolics in leaves of P. deltoides were significantly correlated with the resistance to T. lobulifera, while the content of protein in the leaves was not correlated with the resistance. The clones with higher content of total phenolics in the leaves were mite resistant, conversely were mite susceptible.

Key words: Populus deltoides, Tetra lobulifera, chemical substances, resistance to mite