| 河套灌区节水抗旱玉米品种田间鉴选 |
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| 引用本文： | 伊卫东,韩开明,张永平,关文雯.河套灌区节水抗旱玉米品种田间鉴选[J].内蒙古农业大学学报(自然科学版),2012,33(1):61-67. |
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| 作者姓名： | 伊卫东 韩开明 张永平 关文雯 |
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| 作者单位： | 内蒙古农业大学农学院,呼和浩特,010019 |
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| 基金项目： | 国家自然科学基金，国家"十一五"科技支撑计划重点项目，内蒙古自然科学基金 |
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| 摘 要： | 在节水灌溉和常规充分灌溉条件下,对20个北方玉米主产区品种的形态及生理指标、产量形成、水分利用等进行了系统测定,并比较了相关抗旱节水性能评价指标.结果表明,节水灌溉条件下,多数品种的产量和水分利用效率(WUE)表现一般,通过隶属函数法筛选出5个经济产量和WUE都表现较好的玉米品种并进行田间验证.以WUE和抗旱指数综合评价证明,郑单958、内单314和科河10号3个品种的节水抗旱性能均优于对照品种益丰29号和潞玉13号,适宜在内蒙古河套灌区引进推广.抗旱指数及其修订武与2水处理下的产量和水分利用效率均呈极显著正相关,是筛选节水抗旱玉米品种的有效指标.节水、抗旱、高产玉米品种的共同特征是株高中等、茎秆粗壮、穗位较低、单株叶面积较大；叶片叶绿素含量较高,光合速率和水分利用效率均较高；穗型中等、粒重较大,且单位面积穗数多等.
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| 关 键 词： | 玉米 节水 抗旱 河套灌区 |
EVALUATING AND SELECTING WATER SAVING AND DROUGHT RESISTANCE VARIETIES OF CORN IN HETAO IRRIGATION DISTRICT |
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| YI Wei-dong
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HAN Kai-ming
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ZHANG Yong-ping
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GUAN Wen-wen.EVALUATING AND SELECTING WATER SAVING AND DROUGHT RESISTANCE VARIETIES OF CORN IN HETAO IRRIGATION DISTRICT[J].Journal of Inner Mongolia Agricultural University(Natural Science Edition),2012,33(1):61-67. |
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| Authors: | YI Wei-dong HAN Kai-ming ZHANG Yong-ping GUAN Wen-wen |
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| Institution: | (College of Agronomy,Inner Mongolia Agricultural University,Hohhot,010019,China) |
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| Abstract: | The morphological and physiological characters,yield formation,water use efficiency(WUE) of 20 corn varieties planted in northern corn region were studied systematically under water-saving irrigation and conventional sufficient irrigation conditions.The different drought-resistance and water-saving indices were compared at the same time.The results showed that both the yield formation and WUE in most varieties were ordinary under water saving irrigation condition,five corn varieties were selected through the dependence function analysis for their better economic yield and WUE.Through the drought-resistant index(DRI) and WUE evaluation,the drought-resistant performance of Zhengdan958,Neidan314 and Kehe10 were better than that of Yifeng29 and Luyu13.Three of these were drought-resistance,water-saving and high-yielding corn varieties,which could be introduced to plant in Hetao irrigation region,Inner Mongolia.The drought-resistant index of corn varieties are correlated positively with economic yield and WUE,therefore DRI is an effective way to select the drought-resistance and water-saving corn variety.The main characteristic of drought-resistance,water-saving and high yield corn variety are 1)the medium plant height,thicker stalk and bigger leaves area of single plant;2)higher SPAD value,photosynthetic efficiency and WUE of leaf blade;3) the medium corn ear,high grains weight and major number of ears per unit area etc. |
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| Keywords: | Corn Water-saving Drought-resistance Hetao irrigation district |
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