| 吴永成,周顺利,张永平,王志敏.节水高产小麦理想全株型探讨[J].干旱地区农业研究,2005,(2):126~129 |
| 节水高产小麦理想全株型探讨 |
| Discussion of plant shapes of high-yield and water-saving wheat |
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| DOI：10.7606/j.issn.1000-7601.2005.02.27 |
| 中文关键词: 小麦 节水 高产 理想全株型 |
| 英文关键词:wheat water saving high yield optimal plant shape |
| 基金项目:国家自然科学基金(30270780)； 高校博士点基金(20020019022) |
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| 摘要点击次数: 98 |
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| 中文摘要: |
| 在总结小麦节水高产栽培相关研究的基础上,提出了节水高产小麦理想全株型概念。理想全株型包括理想冠层构型和理想根构型。节水高产小麦理想冠层表现为大群体、小个体、上层叶片小而直立,穗、穗下节间、旗叶鞘等非叶绿色面积比例高、群体穗/叶比值大等结构特征和高光效、低耗水、强抗逆等功能特点;理想根构型表现为初生根数目多,根系下扎深,深层根量大、比例高和活力强等。并对节水高产小麦理想全株型的调控技术进行了探讨。 |
| 英文摘要: |
| On the basis of the summarization of the researches of water-saving and high-yield wheat production, the paper brings forward the concept of optimal plant shape of wheat. The optimal plant shape includes optimal canopy structure and optimal root structure. The ideal canopy structure of water-saving and high-yield appears to be a structure consisting of such characters as big population, small individual plants, small and erective upper leaves and high percentage of the green area formed by spikes, the internodes next to spikes and flagleaf sheaths, high ratio of total spike number to leaves, low water consumption, and strong resistance; the optimal root structure should consists of high number of primary roots, deep root penetration, high percentage of roots in deep soil layers and high vigor. Besides, it discusses the regulating and controlling techniques to create the optimal plant shape in water-saving and high-yield wheat production. |
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