Phytotoxicity
nounPronunciation: /ˌfaɪtəʊtɒkˈsɪsɪti/
The adverse physiological effects or toxicity experienced by plants when exposed to deleterious chemical compounds or contaminants in soil or air, including inhibition of growth, chlorosis, and metabolic dysfunction. Common phytotoxic agents include heavy metals, pesticides, industrial pollutants, and allelopathic compounds from competing vegetation.
Plain English
Plant poisoning or injury caused by toxic chemicals in soil, water, or air that block growth and damage tissues.
Etymology & History
Usage
"Cadmium phytotoxicity manifested as reduced chlorophyll synthesis and impaired root development in soybean seedlings exposed to contaminated soil."
Style guide notes: Specify the phytotoxic agent when possible; use 'metal phytotoxicity' or 'pesticide phytotoxicity' for clarity.
Also known as
Contrasted with
Related Terms
Frequently Asked Questions
What are common causes of phytotoxicity?
Heavy metals like cadmium and lead, pesticide residues, industrial pollutants, salt accumulation, and allelopathic compounds from adjacent plants cause phytotoxicity.
How is phytotoxicity assessed in research?
Researchers measure biomass reduction, chlorophyll content, root elongation, electrolyte leakage, and metal accumulation in plant tissues to quantify phytotoxic effects.
Why Test Candidates on This?
Phytotoxicity assessment is essential for evaluating contaminated land remediation and crop safety in polluted growing environments.
Required skill level: Mid