Arsenate Toxicity to Pisum sativum: Mineral Nutrients, Chlorophyll Content, and Phytase Activity

摘要

A significant mechanism of arsenate toxicity to Pisum sativum is interference wit its nutrient balance. This conclusion is supported by assessments made after exposing P. sativum L. cv. "Phenomen" for 12 days to 12.5 , 20.8 and 33.3 mg, and for 32 days to 7.5, 22.1 36.7, and 73.3 mg of sodium arsenate/kg dry wto soil in the greenhouse. At 20.8 mg of arsenate, mobilization of manganese from the cotyledons was significantly increased and that of zinc decreased. Nitrogen accumulated in the roots.