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Chinese Journal of Applied Ecology ›› 2001, Vol. 12 ›› Issue (4): 566-568.

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Changes of photosynthetic characteristics of strawberry leaf under shading

CHI Wei, WANG Rongfu, ZHANG Chenglin   

  1. Anhui Agricultural University, Hefei 230036
  • Received:2000-09-25 Revised:2001-02-12 Online:2001-07-25 Published:2001-07-25

Abstract: Studies on the photosynthetic characteristics of two strawberry varieties(Baojiaozaosheng and Shuofeng)under shading showed that the photosynthesis rate decreased by 20% and 47%,when the apparent quantum efficiency increased by 13% and 8%,respectively.The chlorophyll content was enhanced slightly,while the insoluble protein content in leaf decreased drastically.The results also showed that the PSⅡ activity decreased by 22.5% and 53.7%,and the activity of Rubisco, the key enzyme of Calvin cycle, decreased by 19.6% and 35.5%,respectively. The reason of photosynthesis rate descent in light saturation point was also discussed.

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