| 土壤干旱对小麦茎秆贮藏物质积累与再转运的影响 |
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| 引用本文： | 王征宏,邓西平,刘立生,赵紫平.土壤干旱对小麦茎秆贮藏物质积累与再转运的影响[J].灌溉排水学报,2009(4). |
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| 作者姓名： | 王征宏 邓西平 刘立生 赵紫平 |
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| 作者单位： | 西北农林科技大学生命科学学院;中国科学院水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室;河南科技大学农学院; |
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| 基金项目： | 中国科学院知识创新工程项目(KZCX3-SW-444,KZCX-YW-09-07);;国家自然科学基金项目(50779063);;国家重点基础研究发展计划项目(2009CB118604);;西北农林科技大学拔尖人才支持计划项目 |
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| 摘 要： | 在防雨池栽条件下,以小麦旱地品种长武134(抗旱性强)和水地品种(抗旱性弱)为试材,研究干旱对不同抗旱性小麦茎秆及其组成节间花后干物质积累、转运及其对籽粒产量贡献率的影响。结果表明,干旱降低了主茎及其各组成节间干物质的积累量、主茎穗粒重积累量及其灌浆中后期的积累速率,长武134(除其它茎)降低幅度均小于陕253;干旱条件下茎秆贮藏物质的转运并未对籽粒产量产生补偿效应,干旱降低主茎穗粒重积累量与其它茎贮藏物质转运量和转运率较低有密切关系;抗旱性强的小麦品种其它茎的转运量、转运率降低幅度均大于抗旱性弱的小麦品种,从而导致其主茎贮藏物质转运对籽粒产量的贡献率显著降低。
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| 关 键 词： | 干旱 小麦 茎贮藏物质 转运 |
Effects of Soil Drought on Accumulation and Remobilization of Stem Reserves in Wheat |
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| WANG Zheng-hong,DENG Xi-ping,LIU Li-sheng,ZHAO Zi-ping.Effects of Soil Drought on Accumulation and Remobilization of Stem Reserves in Wheat[J].Journal of Irrigation and Drainage,2009(4). |
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| Authors: | WANG Zheng-hong DENG Xi-ping LIU Li-sheng ZHAO Zi-ping |
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| Institution: | 1.College of Life Science;Northwest A & F University;Yangling 712100;China;2.State Key Laboratory of Soil Erosion and Dryland Farming on Loess Plateau;Institute of Soil and Water Conservation;CAS;3.Agricultural College;Henan University of Science and Technology;Luoyang 471003;China |
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| Abstract: | Under rain-proof shelter culture condition,two types of winter wheat(Triticum aestivum.L),dryland cultivar Changwu 134(drought-resistant) and irrigated cultivar Shaan 253(drought-sensitive),were applied to study the effects of soil drought on post-anthesis dry matter accumulation,remobilization and contribution to grain yield of stems and their constituent internodes.The result indicated that the dry matter accumulation of main stem and constituent internodes,accumulation amount and accumulation rate of mai... |
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| Keywords: | soil drought wheat stem reserves remobilization |
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