安徽农业科学2011，Vol.39Issue(36)：22289-22290,22330,3.
不同施氮方法对春玉米生育后期叶片酶活性的影响
Effects of Different Nitrogen Application Methods on Enzyme Activities of Leaves in Late Growth Stage of Spring Maize
摘要
Abstract
[Objective] This paper aimed at exploring the effects of different nitrogen application methods on the enzyme activities of leaves at ear position in late growth stage of maize. [Method] By pot experiment, the superoxide dismutase (SOD) activity, peroxidase (POD) activity, malonyl dialdehyde (MDA) content and soluble protein content were determined. [ Result] At the filling stage and ripening stage, with the increasing of nitrogen application rate, MDA content gradually decreased, while SOD activity, POD activity and soluble protein content increased. MDA content with two topdressing nitrogen was lower than that with one topdressing nitrogen at the same nitrogen application rate, while SOD activity, POD activity and soluble protein content with two topdressing nitrogen were higher than that with one topdressing nitrogen. [ Conclusion] Different nitrogen application methods had relatively significant effects on the MDA content, SOD activity, POD activity and soluble protein content, which was of certain directive significance for preventing spring maize premature.关键词
施氮方法/春玉米/酶活性Key words
Nitrogen application methods/ Spring maize/ Enzyme activity分类
农业科技引用本文复制引用
汪仁,安景文,解占军,华利民,刘艳..不同施氮方法对春玉米生育后期叶片酶活性的影响[J].安徽农业科学,2011,39(36):22289-22290,22330,3.基金项目
国家科技支撑项目(2008BADA4B06,2011BAD16B12) （2008BADA4B06,2011BAD16B12）
加拿大国际植物营养研究所(IPNI)项目. （IPNI）
