Physiological and Growth Responses of Castor (Ricinus Communis L) Under Cadmium Stressed Environment

Muhammad Afzal Chhajro; Hongqing Hu; Kashif Ali Kubar; Shahmir Ali Kalhoro; Mehar un Nisa Narejo; Qamar Sarfaraz; Naimatullah Koondhar; Sanaullah Magsi

doi:10.38211/joarps.2022.3.2.30

Authors

Muhammad Afzal Chhajro Office of Research Inovation & Commercialization (ORIC) SMIU
Hongqing Hu Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China.
Kashif Ali Kubar Faculty of Agriculture, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, Pakistan
Shahmir Ali Kalhoro Faculty of Agriculture, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, Pakistan
Mehar un Nisa Narejo Faculty of Crop Production, Sindh Agriculture University, Tandojam
Qamar Sarfaraz Faculty of Agriculture, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, Pakistan
Naimatullah Koondhar Faculty of Agriculture, Lasbela University of Agriculture, Water and Marine Sciences, Uthal, Pakistan
Sanaullah Magsi Department of Land and Water Management Faculty of Agricultural Engineering Sindh Agriculture University Tandojam

DOI:

https://doi.org/10.38211/joarps.2022.3.2.30

Abstract

Cadmium (Cd) is considered as phytotoxic in nature, its toxicity on the plant development decrease the antioxidative enzymes activities under stress environment. Castor (Ricinus Communis L.) is a metal tolerant plant and its ability to survive in highly polluted soils. Castor plant exhibited the high level of the Cd stress in the soil and buildup the antioxidants i.e., super oxide dismutase (SOD), peroxidase (POD) and malondialdehyde (MAD) on the top of the ground parts under Cd stress. Castor plant grown in the treated soil for 30 days in various levels of Cd 0, 10, 25 and 50 mg kg^-1 soil treatments. Stress caused by heavy metal toxicity effects on reduced the plant growth, biomass, of castor plant respectively under 25- 50 mg kg^-1 stress as against to control treatment. Our results indicated that castor significantly enhanced the Cd contents in root, stem and leaves. The POD and SOD enzyme activities were significantly increased 215.30 µmol/g^-1 and 53.20 U/g respectively under 50 mg kg^-1 stress as against control. While, MAD and chlorophyll content 3.11% and 0.48%, proline content 2.23 to 1.75 µg^-1 were decreased under 25 and 50 mg kg^-1 Cd stress as against control. According to Pearson’s correlation the our research work exposed strongly positive relationship with root, shoot, proline and malionaldihyde. Although the destructive relationship was demonstrated by PoD and SOD enzyme activities. Hence, this study recommended that castor can grow in highly polluted soils for phytoremediation

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Author Biography

Hongqing Hu, Key Laboratory of Arable Land Conservation (Middle and Lower Reaches of Yangtze River), Ministry of Agriculture, College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China.

^*Corresponding author

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