山东农业科学2016，Vol.48Issue(11)：29-33,5.DOI:10.14083/j.issn.1001-4942.2016.11.007
不同水分条件下硫肥对玉米幼苗叶片光合特性的影响
Effects of Sulfur Levels on Photosynthetic Characteristics of Maize Seedling Leaves under Different Water Conditions
摘要
Abstract
In order to explore the influences of sulfur levels on photosynthetic characteristics of maize seedling leaves under different water conditions,four sulfur treatments with different sulfur concentrations in Hoagland nutrient solution and water treatments with control and 30% PEG -6000 simulated drought were de-signed using Nongda 108 as tested maize variety.The sulfur and water treatments were conducted from the third leaf stage of corn,and then we measured the chlorophyll content,net photosynthetic rate and chlorophyll fluorescence dynamic change within 8 days.The results showed that sulfur fertilizer could significantly increase the chlorophyll content,remarkably increase the net photosynthetic rate by non -stomatal factors,and improve the activity of photosystem Ⅱ reaction center.Drought could significantly reduce the chlorophyll content,de-crease the photosynthetic capacity,and cause damage to PSⅡreaction center.However,the increase of sulfur concentration could effectively alleviate the damage caused by drought to maize seedling leaves,and 4 mmol /L sulfur had the best effects.关键词
硫/玉米幼苗/光合特性/干旱胁迫Key words
Sulfur/Maize seedling/Photosynthetic capacity/Drought stress分类
农业科技引用本文复制引用
孙旭东,张慧,薛艳芳,温立玉,李宗新,刘开昌..不同水分条件下硫肥对玉米幼苗叶片光合特性的影响[J].山东农业科学,2016,48(11):29-33,5.基金项目
公益性行业（农业）科研专项（201203079、201303013）；国家科技支撑计划课题（2013BAD07B06）；山东省现代农业产业技术体系玉米创新团队项目 （）
