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Paper Information

Journal:   ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION   2016 , Volume 5 , Number 4; Page(s) 97 To 113.
 
Paper: 

EFFECT OF ELEVATED ATMOSPHERIC CO2 ON CADMIUM UPTAKE BY WHEAT AND SORGHUM

 
 
Author(s):  KHANBOLUKI G., MIRSEYED HOSSEINI H.*, MOTESHAREZADEH B.
 
* DEPT. OF SOIL SCIENCE AND ENGINEERING, UNIVERSITY OF TEHRAN
 
Abstract: 

Background and Objectives: One of the outcomes of the industrial development has been the increase in CO2 levels in the atmosphere from 280 to 367 Microliter per liter by the end of 20th century. Many studies have investigated the effects of increasing CO2 levels on plant. Increase in atmospheric CO2 levels and increasing concentration of heavy metals in agricultural lands can effect plant growth, production and have negative impact on human health through food chain. This study was aimed to investigate the effects of different levels of CO2 and cadmium on growth and cadmium uptake by wheat and sorghum.
Materials and Methods: A greenhouse experiment was carried out with pots containing 3.5 kg soils and in split factorial design. Treatments included four levels of cadmium (0, 10, 20 and 40 mg Cd kg-1 soil) (from Cd (NO3)2) and two levels of CO2 (400 and 900
mL L-1). Cadmium uptake by plants roots and shoots and phytoremediation indices were calculated for both plants.
Results: The results indicated that increasing CO2 levels, enhanced maximum shoot and root dry weight by 26% and 17% for wheat and 18% and 13% for sorghum, respectively. Increasing CO2 levels did not have any effect on Cd uptake by wheat but increased Cd uptake by 37-44% in shoot and 26-37% in root for sorghum. Phytoremediation indices were calculated based on the effect of increasing CO2 level on plant dry matter and Cd uptake. Although, Bio Concentration Factor, Biological Accumulation Coefficient and Tolerance Index were all less than unit, but with increase in CO2 levels these indexes and Remediation Ratio increased for sorghum.
Conclusion: Since the increase on CO2 concentration increased cadmium uptake and remediation ratio in sorghum, this plant has a higher potential for extracting cadmium from polluted soils, specially in areas where increase in CO2 levels are an issue. This can be important in industrial areas and the agricultural lands around them. The interactions between soil cadmium and increasing CO2 levels in the atmosphere with respect to climate change requires further research to study its effect on various plants.

 
Keyword(s): SOIL POLLUTION, CLIMATE CHANGE, DRY MATTER, PHYTOREMEDIATION INDICES
 
 
References: 
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Click to Cite.
APA: Copy

KHANBOLUKI, G., & MIRSEYED HOSSEINI, H., & MOTESHAREZADEH, B. (2016). EFFECT OF ELEVATED ATMOSPHERIC CO2 ON CADMIUM UPTAKE BY WHEAT AND SORGHUM. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, 5(4), 97-113. https://www.sid.ir/en/journal/ViewPaper.aspx?id=509296



Vancouver: Copy

KHANBOLUKI G., MIRSEYED HOSSEINI H., MOTESHAREZADEH B.. EFFECT OF ELEVATED ATMOSPHERIC CO2 ON CADMIUM UPTAKE BY WHEAT AND SORGHUM. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION. 2016 [cited 2021May12];5(4):97-113. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=509296



IEEE: Copy

KHANBOLUKI, G., MIRSEYED HOSSEINI, H., MOTESHAREZADEH, B., 2016. EFFECT OF ELEVATED ATMOSPHERIC CO2 ON CADMIUM UPTAKE BY WHEAT AND SORGHUM. ELECTRONIC JOURNAL OF SOIL MANAGEMENT AND SUSTAINABLE PRODUCTION, [online] 5(4), pp.97-113. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=509296.



 
 
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