1. the quality or state of being poisonous or toxic to plants
Usage: technical; used in agriculture, botany, and environmental science

Examples

• The phytotoxicity of the herbicide was tested on several crop species.
• Heavy metals in contaminated soil can cause phytotoxicity in sensitive plants.
• Researchers assessed the phytotoxicity of the new pesticide before market approval.
• Excessive salt accumulation in the soil increases phytotoxicity to root systems.
• The phytotoxicity of certain industrial pollutants threatens agricultural productivity.
• Plant breeders select for tolerance to phytotoxicity from aluminum in acidic soils.