Scientia Agricultura Sinica ›› 2004, Vol. 37 ›› Issue (11): 1718-1721 .

• RESEARCH NOTES • Previous Articles     Next Articles

Studies on the Relationship of Chlorophyll Fluorescence Characters and Drought Tolerance in Seedling of Sugarcane Under Water Stress

  

  1. 农业部甘蔗生理生态与遗传改良室
  • Received:2003-05-26 Revised:2003-09-09 Online:2004-11-20 Published:2004-11-20

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Abstract: The relationship of drought tolerance and chlorophyll fluorescence characters during water stress in seedling of sugarcane was stuided by using modulated chlorophyll fluorometer. The results indicated that Fv/Fm, Fv/Fo, Yield, Rfd values decreased gradually under water stress. With water stress intensifying, Fv/Fm, Fv/Fo, Yield, Rfd value were decreased depending on the genotypes. The decrease of these chlorophyll fluorescence parameters was closely related to drought tolerance of sugarcane varieties. The possibility of determining the drought resistance in sugarcane using chlorophyll fluorescence characters was studied.

Key words: Sugarcane (S. officinarum L.), Chlorophyll fluorescence, Water stress, Photosynthesis, Drought resistance

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