Physiological effects under the condition of spraying nano-SiO_2 onto the Indocalamus barbatus McClure leaves

Abstract

Physiological effects under the condition of spraying different concentrations(0,150,300,450 mg/L) of nano-SiO_2 onto the Indocalamus barbatus McClure leaves were studied.The results showed that all concentrations of nano-SiO_2 treatments could increase the contents of soluble protein,free amino acids,total nitrogen,phosphorus,potassium,stimulate SOD and POD activities,and decrease MDA content.Certain correlation of concentration and time would affect the effects.300 mg/L nano-SiO_2 treatment got the best effect which indicated that 300 mg/L nano-SiO_2 treatment could effectively increase the nutritional function and the ability of scavenging active oxygen in Indocalamus barbatus leaves and improve the physiological function of leaves.