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phytotoxicity

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Phytotoxicity refers to the harmful effects that chemical substances—such as herbicides, heavy metals, excess fertilizers, or nanoparticles—exert on plant growth, physiology, and metabolism. Understanding phytotoxicity is critical to plant science because it underlies key processes like the disruption of photosynthesis, nutrient uptake, cell division, and seed germination. Research in this area informs safe agrochemical use, environmental risk assessment, and the development of more resilient crops capable of tolerating chemical stressors.

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