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PHYSIOLOGICAL CHANGES OF NORTHERN WHEAT UNDER STRESS EFFECT OF SIMULATED ACID RAIN IN CHINA

Jianguo Li

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Abstract

The wheat samples were sprayed during its vegetative and productive stages by simulated acid rain-with pHvalues of 2.0,3.0,4.0,5.0 and 6.0.The results indicated that visible injures emerged when pHvalues were below3.0(threshold value),chlorophyll(Chl) content reduced,malondialdehyde(MDA) con-tent increased,catalase(CAT) activity and peroxidase(POD) activity was suppressed.Stress effects of simu-lated acid rain on wheat increased more remarkable with the increase of density of hydrogen ions in acid rain.Itwas correlated with disposal times and doses.

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What this paper is about

The wheat samples were sprayed during its vegetative and productive stages by simulated acid rain-with pHvalues of 2.0,3.0,4.0,5.0 and 6.0.The results indicated that visible injures emerged when pHvalues were below3.0(threshold value),chlorophyll(Chl) content reduced,malondialdehyde(MDA) con-tent increased,catalase(CAT) activity and peroxidase(POD) activity was suppressed.Stress effects of simu-lated acid rain on wheat increased more remarkable with the increase of density of hydrogen ions in acid rain.Itwas correlated with disposal times and doses.

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Available abstract

The wheat samples were sprayed during its vegetative and productive stages by simulated acid rain-with pHvalues of 2.0,3.0,4.0,5.0 and 6.0.The results indicated that visible injures emerged when pHvalues were below3.0(threshold value),chlorophyll(Chl) content reduced,malondialdehyde(MDA) con-tent increased,catalase(CAT) activity and peroxidase(POD) activity was suppressed.Stress effects of simu-lated acid rain on wheat increased more remarkable with the increase of density of hydrogen ions in acid rain.Itwas correlated with disposal times and doses.

Key concepts: Acid rain, Malondialdehyde, Catalase, Point of delivery, Chlorophyll, Peroxidase, Chemistry, Horticulture

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