应用生态学报2011，Vol.22Issue(4)：979-984,6.
大气CO2浓度和氮肥水平对小麦籽粒产量和品质的影响
Effects of atmospheric CO2 concentration eahancement and nitrogen application rate on wheat grain yield and quality
摘要
Abstract
FACE platform was applied to study the effects of elevated atmospheric CO2 concentration on wheat grain yield and quality under two nitrogen (N) application rates. Elevated atmospheric CO2 concentration and applying N increased the grain yield, spike number, grain number per spike, and biomass significantly, but elevated CO2 concentration had no significant effects on harvest index ( HI) . Under elevated CO2 concentration. there was a significant decrease in the protein, gliadin, gluteinin. and glutein contents of the grain and the sedimentation value of the flour.and a significant increase in the starch and its components contents of the grain; under N application. an inverse was observed. The dough stability time and the dough viscosity characteristics.such as peak viscosity, final viscosity, and setback value. increased significantly under elevated CO2 concentration and high N application rate. The interaction of atmospheric CO2 concentration and N application rate had significantly positive effects on wheat grain yield and biomass. but less effect on grain quality. Therefore , with elevated atmospheric CO2 concentration in the future, maintaining a higher N application level would benefit wheat grain yield and paste characteristics. and mitigate the decline of grain quality.关键词
小麦产量/品质/FACE/氮肥分类
农业科技引用本文复制引用
崔昊,石祖梁,蔡剑,姜东,曹卫星,戴廷波..大气CO2浓度和氮肥水平对小麦籽粒产量和品质的影响[J].应用生态学报,2011,22(4):979-984,6.基金项目
农业部公益性行业科研专项(200803037)和江苏省科技支撑计划项目(BE2009426)资助. （200803037）
