Influence of Biochar on Lead –Induced Oxidative Damage and AntiOxidative Defense Mechanisms on the Leaf of Solanum lycopersicum (L.) (Tomato)
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Date
2024-06-23
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Publisher
Jewel Journal of Scientific Research (JJSR)
Abstract
This study examined the impact of biochar derived from kolanut pods on the growth of Solanum
lycopersicum (tomato) and its ability to mitigate oxidative stress caused by lead (Pb) toxicity. A
pot experiment was conducted in artificially Pb-contaminated soil, utilizing various levels of
biochar application (1%, and 3% w/w). Tomato seedlings were cultivated under four treatment
conditions for 74 days; control, soil spiked with 250 mg Pb/kg, soil spiked with 250 mg Pb /kg and
treated with 1% biochar, and soil spiked with 250 mg Pb and treated with 3% biochar. Growth
parameters, which include the plant height, leaf number, stem girth, leaf area, number of petiole
and petiole length were monitored. The findings indicated heightened oxidative stress in plants
grown in soil solely spiked with Pb. Application of 1% biochar enhanced plant growth, whereas a
higher dose (3%) hindered growth. Both 1% and 3% biochar treatments reduced oxidative stress
and improved antioxidant activities compared to the control and Pb-contaminated soil without
biochar amendment. Consequently, the application of biochar to soil contaminated with Pb shows
promise in mitigating the hazards posed by lead (Pb) toxicity in plant.