Effects of Silicon on Chlorophyll Fluorescence of Cucumber Seedlings Under Severe Drought Stress

doi:10.7668/hbnxb.2007.05.019

Abstract

Abstract: Effects of silicon on Chlorophyll Fluorescence parameters of cucumber seedling leaves under severe drought stress were studied. The results were as follows: after severe drought stress for 6 days, Fo was higher, Fm, Fv, Fv/Fm, Fv/Fo and NPQ were all lower, but the results of silicon addition were opposite. Based on these facts, it was concluded that silicon could reduced the destruction and injury of photosynthetic organs, and enhance the resistance of cumumber seedlings to severe drought stress.

Key words: Cucumber, Seedlings, Silicon, Drought stress, Chlorophyll, Fluorescence parameter

CLC Number:

Q945.12

ZHOU Xiu-jie, ZHAO Hong-bo, MA Cheng-cang. Effects of Silicon on Chlorophyll Fluorescence of Cucumber Seedlings Under Severe Drought Stress[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2007, 22(5): 79-81. doi: 10.7668/hbnxb.2007.05.019.

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http://www.hbnxb.net/EN/Y2007/V22/I5/79

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