花前渍水对长江中下游主推小麦品种产量的影响  

Effects of Waterlogging Before Anthesis on Grain Yield in Wheat for the Main Cultivar in the Middle and Lower Reaches of Yangtze

作　　者：段营营[1] 王小燕[1] 于晶晶[1] 王晓玲[1] 

机构地区：[1]长江大学农学院/长江中游湿地农业教育部工程研究中心,湖北荆州434025

出　　处：《湖北农业科学》2015年第10期2331-2334,共4页Hubei Agricultural Sciences

基　　金：国家自然科学基金项目(31101125;31371580);农业部公益性行业(农业)科研专项(201203032)

摘　　要：为了研究花前渍水对小麦(Triticum aestivum Linn.)产量的影响,对长江中下游主推小麦品种进行花前渍水试验,在拔节期测量SPAD值(叶绿素相对含量),和黄绿叶面积比,孕穗期测量SPAD值和黄绿叶面积比,并对产量及产量构成因素进行分析。结果表明,渍水导致旗叶SPAD值下降,黄绿叶面积比上升,收获指数下降。产量的构成因素中,千粒重、穗粒数、有效分蘖数下降。综合各个品种来看,不同品种的指标参数下降幅度不同,通过分析不同品种指标参数下降幅度,寻找到优势品种襄麦25和皖麦56。To study the effects of waterlogging before anthesis on grain yield in wheat （Triticum aestivum Linn.）in the middle and lower reaches of Yangzer, this experiment was carried out. During the research, the relative content of chlorophyll （SPAD value）, leaf area ratio of yellow to green, grain yield and yield components were studied. The results were as follow. Waterlogging decreased SPAD value in flag leaf and harvest index decreased, but the ratio of yellow leaf to green leaf in- creased. For the components of grain yield, grain weight, grain number per spike, and effective tiller decreased all. For dif- ferent cuhivar, the decrease percent was different. Based on the analysis of different index after anthesis waterlogging, Xiang- mai25 and Wanmai56 were selected as superior cultivar.

关 键 词：渍水 小麦(Triticum AESTIVUM Linn.) 产量 

分 类 号：S512.1[农业科学—作物学]