| 灌溉量对新疆滴灌密植高产春玉米光合特性及产量的影响 |
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| 引用本文： | 李佳佳,刘朝巍,王克如,肖春华,徐文娟,张国强,刘广州.灌溉量对新疆滴灌密植高产春玉米光合特性及产量的影响[J].玉米科学,2017,25(1):107-112. |
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| 作者姓名： | 李佳佳 刘朝巍 王克如 肖春华 徐文娟 张国强 刘广州 |
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| 作者单位： | 石河子大学农学院/绿洲生态农业重点实验室, 新疆 石河子 832003,石河子大学农学院/绿洲生态农业重点实验室, 新疆 石河子 832003,中国农业科学院作物科学研究所/农业部作物生理生态重点实验室, 北京 100081,石河子大学农学院/绿洲生态农业重点实验室, 新疆 石河子 832003,石河子大学农学院/绿洲生态农业重点实验室, 新疆 石河子 832003,石河子大学农学院/绿洲生态农业重点实验室, 新疆 石河子 832003,中国农业科学院作物科学研究所/农业部作物生理生态重点实验室, 北京 100081 |
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| 基金项目： | 国家自然科学基金项目（31360302）、石河子大学高层人才项目（RCZX201217） |
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| 摘 要： | 选用玉米品种先玉335、郑单958和KWS3564为试材,以新疆当地高产玉米常规灌溉量6 000 m~3/hm~2为对照(CK),设置4 200(T1)、4 800(T2)、5 400 m~3/hm~2(T3)3个灌溉水平,研究灌溉量对新疆滴灌高产春玉米(≥15 000 kg/hm~2)光合特性、叶片水分利用效率和产量的影响。结果表明,随灌溉量减少幅度的增大,光合速率、气孔导度、蒸腾速率、叶面积指数明显下降,叶片水分利用效率提高,且在吐丝期更敏感,胞间CO2浓度呈上升趋势。不同品种的产量随灌溉量的变化存在差异,常规灌溉量(6 000 m~3/hm~2)降低10%(5 400 m~3/hm~2)时,先玉335和KWS3564产量降低5.82%~7.25%,郑单958产量无明显变化,均具有相对较高的水分生产率。综合比较,5 400 m~3/hm~2灌溉水平适宜在该地区应用。
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| 关 键 词： | 春玉米 滴灌 高产 光合特性 叶面积指数(LAI) 水分利用效率(WUE) |
| 收稿时间： | 2016/8/26 0:00:00 |
Effects of Different Drip Irrigation Regimes on Photosynthetic Characteristics and Yield of Spring Maize Under the Condition of High-yield and Planting Density in Xinjiang |
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| LI Jia-ji,LIU Chao-wei,WANG Ke-ru,XIAO Chun-hu,XU Wen-juan,ZHANG Guo-qiang and LIU Guang-zhou.Effects of Different Drip Irrigation Regimes on Photosynthetic Characteristics and Yield of Spring Maize Under the Condition of High-yield and Planting Density in Xinjiang[J].Journal of Maize Sciences,2017,25(1):107-112. |
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| Authors: | LI Jia-ji LIU Chao-wei WANG Ke-ru XIAO Chun-hu XU Wen-juan ZHANG Guo-qiang and LIU Guang-zhou |
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| Institution: | Agronomy College, Shihezi University/Key Laboratory of Oasis Ecology Agriculture of Xinjiang Construction Group, Shihezi 832003,Agronomy College, Shihezi University/Key Laboratory of Oasis Ecology Agriculture of Xinjiang Construction Group, Shihezi 832003,Institute of Crop Science, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture, Beijing 100081, China,Agronomy College, Shihezi University/Key Laboratory of Oasis Ecology Agriculture of Xinjiang Construction Group, Shihezi 832003,Agronomy College, Shihezi University/Key Laboratory of Oasis Ecology Agriculture of Xinjiang Construction Group, Shihezi 832003,Agronomy College, Shihezi University/Key Laboratory of Oasis Ecology Agriculture of Xinjiang Construction Group, Shihezi 832003 and Institute of Crop Science, Chinese Academy of Agricultural Sciences/Key Laboratory of Crop Physiology and Ecology, Ministry of Agriculture, Beijing 100081, China |
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| Abstract: | Maize varieties Xianyu335, Zhengdan958 and KWS3564 were used as test materials, field experiments were conducted to investigate the effects of different irrigation on photosynthetic characteristics, water use efficiency(WUE) and yield of spring maize under the condition of drip irrigation and high planting density in Xinjiang. Four treatments were installed, i.e., the different levels of irrigation were designed as 4 200(T1), 4 800(T2), 5 400(T3) and 6 000 m3/ha(CK). The results showed that with the decreasing of irrigation photosynthetic rate, stomatal conductance, transpiration rate, leaf area index decreased significantly while the leaves'' WUE increased. And the phenomenon was more significant in the duration of tasselling stage. When the conventional irrigation quantity(CK) was reduced by 10%, the yield of Xianyu335 and KWS3564 decreased by 5.82%-7.25%, and that of Zhengdan958 had no significant change. So the irrigation quantity of 5 400 m3/ha was reasonable for maize growth in this region. |
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| Keywords: | Spring maize Drip irrigation High yield Photosynthetic characteristic Leaf area index Water use efficiency |
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