| 早春不同时期灌水对小麦耗水特性和产量的影响 |
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| 引用本文： | 方保停,邵运辉,岳俊芹,李向东,秦峰,王汉芳,张德奇,吕凤荣.早春不同时期灌水对小麦耗水特性和产量的影响[J].河南农业科学,2012,41(10):36-39. |
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| 作者姓名： | 方保停 邵运辉 岳俊芹 李向东 秦峰 王汉芳 张德奇 吕凤荣 |
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| 作者单位： | 河南省农业科学院小麦研究中心,河南省小麦生物学重点实验室,小麦国家工程实验室,农业部黄淮中部小麦生物学与遗传育种重点实验室,河南郑州450002 |
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| 基金项目： | 农业部公益性行业(农业)科研专项经费资助项目，河南省重点科技攻关项目，国家科技支撑计划 |
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| 摘 要： | 为了提高小麦水分利用效率,针对小麦早春灌水较早的现象,以大面积应用的小麦品种周麦18为材料,设置早春起身期、拔节期灌第1水和全生育期不灌水3个处理,研究早春不同时期灌水对小麦水分利用和产量形成的影响。结果表明,与不灌水相比,起身期和拔节期灌水分别增加耗水量16.77%和14.70%,水分利用效率提高13.13%和19.38%,显著增加了成穗数、千粒重和籽粒产量,对穗粒数影响较小;早春灌水处理间水分利用效率和边际效应以拔节期灌水高于起身期灌水,分别提高5.52%和29.64%,产量及其构成因素差异不显著。因此,适时延迟灌早春第1水,能够改善小麦耗水特性、提高籽粒产量。
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| 关 键 词： | 早春 小麦 灌水时期 水分利用 产量 |
Effect of Irrigation in Different Stages of Early Spring on Water Consumption and Grain Yield of Wheat |
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| FANG Bao-ting
,
SHAO Yun-hui
,
YUE Jun-qin
,
LI Xiang-dong
,
QIN Feng
,
WANG Han-fang
,
ZHANG De-qi
,
L Feng-rong.Effect of Irrigation in Different Stages of Early Spring on Water Consumption and Grain Yield of Wheat[J].Journal of Henan Agricultural Sciences,2012,41(10):36-39. |
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| Authors: | FANG Bao-ting SHAO Yun-hui YUE Jun-qin LI Xiang-dong QIN Feng WANG Han-fang ZHANG De-qi L Feng-rong |
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| Institution: | FANG Bao-ting
,
SHAO Yun-hui
,
YUE Jun-qin
,
LI Xiang-dong
,
QIN Feng
,
WANG Han-fang
,
ZHANG De-qi
,
L(U) Feng-rong |
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| Abstract: | The widely grown cultivar Zhoumai 18 was used as material to study the effects of irrigation in different stages of early spring on water utilization and yield components of wheat in order to increase the water use efficiency of wheat.The experiment included 3 treatments: first irrigation at erecting stage,first irrigation at jointing stage,and no irrigation at all the growing stages.The results showed that,compared to no irrigation,irrigation at erecting stage and jointing stage could increase the evapotranspiration by 16.77% and 14.70% respectively,and increase the water use efficiency(WUE) by 13.13% and 19.38% respectively.They also increased the spike number,1000-grain weight and grain yield of wheat,but had little effect on grains per spike.WUE and water marginal effect(WME) were higher for irrigation at jointing stage than at electing stage,increased by 5.52% and 29.64% respectively,while their grain yields and yield components had little difference.It was suggested that the first irrigation in early spring should be delayed to jointing stage,which could improve the water consumption characteristics and increase the grain yield of wheat. |
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| Keywords: | early spring wheat irrigation stage water utilization grain yield |
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