| 干旱-复水对不同玉米品种冠层结构与水分利用效率的影响 |
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| 引用本文： | 郭子锋,龚道枝,梅旭荣,郝卫平,栗雨勤,柳斌辉.干旱-复水对不同玉米品种冠层结构与水分利用效率的影响[J].灌溉排水学报,2011,30(2):41-45. |
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| 作者姓名： | 郭子锋 龚道枝 梅旭荣 郝卫平 栗雨勤 柳斌辉 |
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| 作者单位： | 郭子锋,龚道枝,梅旭荣,郝卫平,GUO Zi-feng,GONG Dao-zhi,MEI Xu-rong,HAO Wei-ping(中国农业科学院农业环境与可持续发展研究所农业部旱作节水农业重点开放实验室,北京,100081);栗雨勤,柳斌辉,LI Yu-qin,LIU Bin-hui(河北省农林科学院旱作节水农业研究所,河北,衡水,053000) |
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| 基金项目： | 国家自然科学基金项目，中央基本科研业务费项目，国际科技合作项目，国际原子能机构项目CRP |
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| 摘 要： | 以抗旱性不同的二个玉米品种('郑单958'和'户单四号')为材料,采用防雨池栽的方式控制土壤水分,研究扬花期干旱-复水对玉米冠层结构、产量、耗水量和水分利用效率的影响.结果表明,扬花期干旱-复水后二个玉米品种的叶面积指数和株高均出现补偿效应,'郑单958'补偿效应优于'户单四号';'郑单958,的群体透光系数在干旱-复...
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| 关 键 词： | 玉米 扬花期 干旱 复水 冠层结构 产量 |
Effects of Drought Stress and Re-watering on Canopy Architecture and Water use Efficiency of Two Maize Genotypes |
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| GUO Zi-feng,GONG Dao-zhi,MEI Xu-rong,HAO Wei-ping,LI Yu-qin,LIU Bin-hui.Effects of Drought Stress and Re-watering on Canopy Architecture and Water use Efficiency of Two Maize Genotypes[J].Journal of Irrigation and Drainage,2011,30(2):41-45. |
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| Authors: | GUO Zi-feng GONG Dao-zhi MEI Xu-rong HAO Wei-ping LI Yu-qin LIU Bin-hui |
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| Abstract: | Two maize genotypes('Zhengdan958' and 'Hudan4') in different drought tolerance were screened to study the effects of canopy architecture,yield,Water consumption and water use efficiency(WUE) under drought stress and re-watering during flowering stage.The results showed that compensation could happen on the plant height,leaf area index(LAI) of two maize varieties after rewatering but that of 'Zhengdan958' was significantly stronger;Transmission coefficient for diffuse penetration(TCDP) and radiation penetration(TCRP) of 'Zhengdan958' had no obvious change under drought stress and re-watering but 'Hudan4's increased.Mean leaf inclination angle(MLIA) and extinction coefficient of two varieties were negative correlation.Owing to the reduction both in yield and water consumption,the WUE of 'Zhengdan958' had no change under drought stress and re-watering.Comparing to the yield the water consumption had little reduction,so the WUE of 'Hudan4' dropped. |
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| Keywords: | maize jointing stage drought stress rewatering canopy architecture yield |
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