叶面喷施纳米SiO_2对髯毛箬竹的生理调节效应  

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

作　　者：李博[1,2] 陶功胜[1] 谢寅峰[1] 蔡贤雷[1] 

机构地区：[1]南京林业大学森林资源与环境学院,江苏南京210037 [2]江苏连云港市委农村工作办公室,江苏连云港222003

出　　处：《南京林业大学学报（自然科学版）》2012年第4期161-164,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家自然科学基金项目(39900115);江苏省高校自然科学基金项目(05KJB220053);南京林业大学"十五"人才培养对象基金项目(PG2003-02)

摘　　要：采用不同质量浓度的纳米SiO2(0、150、300、450 mg/L)对髯毛箬竹进行叶面喷施处理,分析纳米SiO2对髯毛箬竹叶片的生理影响。结果表明:各浓度的纳米SiO2处理可不同程度地提高髯毛箬竹叶片的可溶性蛋白、游离氨基酸、全N、全P、全K含量,刺激SOD和POD保护酶活性,降低丙二醛的含量,并表现出一定的浓度和时间效应,总体上以300 mg/L纳米SiO2处理效果最佳。说明300 mg/L的纳米SiO2处理能有效增强髯毛箬竹叶片的营养功能及其对活性氧的清除能力,改善叶片生理功能。Physiological effects under the condition of spraying different concentrations （0,150,300,450 mg/L ） of nano-SiO2 onto the lndocalamus barbatus McClure leaves were studied. The resuhs showed that all concentrations of nano-SiO2 treatments could increase the contents of soluble protein, free amino acids, total nitrogen, phosphorus, potas- sium, stimulate SOD and POD activities, and decrease MDA content. Certain correlation of concentration and time would affect the effects. 300 mg/L nano-Si02 treatment got the best effect which indicated that 300 mg/L nano-SiO2 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.

关 键 词：纳米SIO2 髯毛箬竹 生理调节 

分 类 号：S718[农业科学—林学]