2010•Ganhan diqu nongye yanjiuRequires access

Alleviation of choline chloride on damage of chlorophyll and chlorophyll fluorescence parameters in wheat seedlings under drought stress

Zhou Xiao

Abstract

The effects of choline chloride(CC) on chlorophyll content and chlorophyll fluorescence parameters(Fo,Fm,Fv,Fo′,Fm′,Fv′,qP,ETR and NPQ) on wheat(Triticum aestivum L.Huaimai 21) seedlings were studied after treatments with different concentrations(0,100,200,300,400 and 500 mg/L) under drought stress.The results showed that the content of chlorophyll a and content of chlorophyll were obviously increased by 83.46% and 81.74% respectively after spraying choline chloride(CC) with 300 mg/L concentration in wheat seedlings under drought stress.Also the chlorophyll fluorescence parameters(Fo′,Fm′,Fv′,Fv′/Fm′,qP,ETR and ΦPSⅡ) were maintained higher than CK.It was suggested that there would be an alleviation of choline chloride on damage of chlorophyll and chlorophyll fluorescence parameters in wheat seedlings under drought stress.

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Key concepts: Chlorophyll, Chlorophyll fluorescence, Chlorophyll a, Chemistry, Chlorophyll b, Choline chloride, Chloride, Choline