| 柳 鹏，王仕稳，殷俐娜，辻本壽，邓西平.硬粒小麦 粗山羊草人工合成小麦的磷效率研究[J].麦类作物学报,2014,34(3):332 |
| 硬粒小麦 粗山羊草人工合成小麦的磷效率研究 |
| Study on Phosphorus Efficiency of Synthetic Hexaploid Wheat Derived from Triticum durum Aegilops tauschii |
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| DOI：10.7606/j.issn.1009-1041.2014.03.08 |
| 中文关键词: 磷肥 合成六倍体小麦 磷吸收效率 磷利用效率 |
| 英文关键词:Phosphorus Synthetic hexaploid wheat P uptake efficiency P utilization efficiency |
| 基金项目:中国科学院西部之光项目(K318021221)；国家重点基础研究发展计划（973计划）项目（2009CB118604）。 |
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| 中文摘要: |
| 为了挖掘磷高效种质资源、培育磷高效小麦品种，利用盆栽方法，设两个磷处理，以磷高效小麦品种长武134和磷低效小麦品种中国春为对照，研究了47份人工合成六倍体小麦（AABBDD）苗期的磷效率、磷吸收效率、磷利用效率的差异及评价指标。结果表明，SPAD值和地上部磷浓度不能作为评价人工合成小麦磷效率的指标，而低磷条件下幼苗的地上部干物质积累量、磷吸收效率与磷效率呈显著正相关。根据磷效率和地上部干物质积累量筛选出3份磷高效的人工合成小麦（SW23、SW24、SW26）。由本研究结果可知，粗山羊草包含与磷高效有关的基因，其与硬粒小麦杂交人工合成的小麦可作为育种材料和普通小麦杂交，进而选育磷高效小麦品种。 |
| 英文摘要: |
| Phosphorus (P) deficiency is one of the major yield limiting constraints in wheat production. The most effective way to solve the P deficiency is to breed high P efficiency wheat. In current study, 47 accessions of synthetic hexaploid wheat (SW, AABBDD) were used to investigate their P efficiency with high P efficiency wheat Changwu134 and low P efficiency wheat Chinese Spring as the check. The result indicated that the SPAD readings and shoot P concentrations were no correlation with P efficiency. By contrast, the shoot dry weight and P uptake efficiency had a better relationship with P efficiency. Three SW lines (SW23, SW24, SW26) had higher shoot dry weight and P efficiency. The conclusion is that the Aegilops tauschii (DD) have high P efficiency genes and they can be used for breeding high P efficiency wheat cultivars through hybridization. |
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