TITLE

Contrasting Effects of Organic and Inorganic Amendments on Reducing Lead Toxicity in Wheat

AUTHOR(S)
Rehman, Muhammad; Rizwan, Muhammad; Ali, Shafaqat; Sabir, Muhammad; Sohail, Muhammad
PUB. DATE
November 2017
SOURCE
Bulletin of Environmental Contamination & Toxicology;Nov2017, Vol. 99 Issue 5, p642
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Contamination of agricultural soils with lead (Pb) is a widespread problem which is mainly due to anthropogenic activities. The present study investigated the effect of organic and inorganic amendments on wheat growth and reducing Pb concentration in the plant. A greenhouse experiment was conducted on Pb spiked soil (500 mg kg of soil) with the application of farmyard manure, poultry manure, gypsum and di-ammonium phosphate (DAP). Plants were harvested after 120 days of growth and analyzed for Pb concentration in different plant parts. Under Pb stress, amendments significantly ( p < 0.05) increased grain yield and root dry weights compared to the control. Grain yield and dry weights of shoots and roots were maximum with DAP compared to the control and other amendments. Amendments increased transpiration rate, stomatal conductance, chlorophyll contents and photosynthetic rate. The lowest Pb concentration was found in DAP treated plants which were about 88%, 84%, and 85% lower in root, shoots and grains than control respectively. DAP fertilizer was the most effective in improving these parameters than control and other amendments and can be used to reduce Pb concentration in wheat and probably other crops.
ACCESSION #
126307757

 

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