不同调亏模式对冬小麦产量形成的影响  

Effect of Different Regulated Deficit Treatments on Winter Wheat's Yield Formation

作　　者：王书吉[1,2] 李彦岭[3] 刘婧然[1] 

机构地区：[1]河北工程大学水电学院,河北邯郸056021 [2]中国农业大学中国农业水问题研究中心,北京100083 [3]河北工程大学农学院,河北邯郸056021

出　　处：《节水灌溉》2016年第3期31-34,37,共5页Water Saving Irrigation

基　　金：河北省自然科学基金(E2013402058);河北省教育厅青年基金(Q2012050);邯郸市科研项目(1422101047-2)

摘　　要：为考察不同调亏灌溉模式对冬小麦产量形成的影响,进行了防雨棚下的人工控水试验。结果表明,与不亏水处理CK相比,所有调亏处理均使得籽粒灌浆期显著缩短,达到最大灌浆速度的时间提前,最大灌浆速率和平均灌浆速率增加。拔节期亏水降低有效穗数,拔节期重度亏水有效穗数最小;抽穗期及灌浆成熟期亏水降低千粒质量,灌浆成熟期重度亏水千粒质量最小;拔节期亏水减少穗粒数,拔节期重度亏水穗粒数最小。综合本文研究结果,冬小麦产量较高的适宜调亏模式依次为:返青期轻度亏水、返青期重度亏水、灌浆成熟期轻度亏水、抽穗期轻度亏水、拔节期轻度亏水、拔节期重度亏水。研究结果可以为相关区域冬小麦高产栽培水分调控提供参考。In order to study the effect of different regulated deficit treatments on winter wheat＇s yield formation,a field experiment is conducted under water controlling conditions.The results show that compared with proper soil water treatment,the deficit treatment makes filling period significantly shorten,the time of arriving maximum filling speed advanced,and the maximum filling speed and average filling speed increased;water deficit at jointing stage can reduce effective panicles;severe water deficit at jointing stage results in minimum effective panicles;water deficit at heading and flowering stage and filling and ripening stage decreases the thousand seeds mass,severe water deficit at filling and ripening stage results in the minimum thousand seeds mass;water deficit at jointing stage reduces grains per spike;severe water deficit at jointing stage results in the minimum grains per spike.So the suitable regulated deficit treatments consideration to winter wheat yield are in sequence as light water deficit at returning green stage,severe water deficit at returning green stage,light water deficit at filling and ripening stage,light water deficit at heading stage,light water deficit at jointing stage,severe water deficit at jointing stage.The results can provide a reference for water regulation for the water-saving and high yield cultivation of winter wheat in relative areas.

关 键 词：调亏模式 冬小麦 灌浆 

分 类 号：S274.1[农业科学—农业水土工程]