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Chinese Journal of Applied Ecology ›› 2002, Vol. ›› Issue (11): 1381-1384.

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SHEN Zonggen1,3, LI Jingyuan and HU Zhenghai 2   

  1. 1. Life Science and Enginnering Department of Changshu College, Changshu 215500;
    2. Institute of Botany, Northwest University, Xian 710069;
    3. Unit for Ecophysiology and Introduction of Desert Plants, Wyler Department of Drylands Agriculture, Jacob Blaustein Institute for Desert Research, Ben Gurion University of the Negev, Sede Boker Campus, 84990 Israel
  • Received:2001-07-09 Revised:2001-09-07

Abstract: Aloe plants are the succulents mainly distributed in arid or semi arid desert in South Africa.TLCanalysis indicated that Aloe arborescens and Aloe hereroensis contained the high concentration of phenolic derivative metabolites, anthraquinones such as barbaloin, homonataloin, aloeresin and aloenin.In younger leaf, L3 of A. hereroensis, the average content of 4 anthraquinones reached 44.9% of the dry weight of exudates. The similar distribution of the anthraquinones in the two species were found, which showed that the youngest leaves had the highest content, the top part of each leaf had the highest content,and the basal part had the lowest content. Along leaf margin, the content was higher than that of central parts. However, some different distributions were also revealed and compared between the two species. It was inferred that the special distribution of anthraquinones in Aloe was a chemical defense strategy for protection themselves.

Key words: dry matter accumulation, yield., intercropped peanut with wheat, antioxidative system, row-spacing, photosynthetic characteristics

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