| 白海波，吕学莲，魏亦勤，许 兴，何海洋，李 昱，李树华.不同灌水条件下春小麦不同器官碳同位素分辨率与产量的相关性 国家自然科学基金项目(31060190)；宁夏回族自治区科技攻关项目；宁夏回族自治区国际合作项目；澳大利亚国际农业研究中心(ACIAR)项目(CIM/2005/111)；宁夏回族自治区自然科学基金项目（NZ12259）。[J].麦类作物学报,2013,33(6):1190 |
| 不同灌水条件下春小麦不同器官碳同位素分辨率与产量的相关性 国家自然科学基金项目(31060190)；宁夏回族自治区科技攻关项目；宁夏回族自治区国际合作项目；澳大利亚国际农业研究中心(ACIAR)项目(CIM/2005/111)；宁夏回族自治区自然科学基金项目（NZ12259）。 |
| Correlation between Carbon Isotope Discrimination of Different Organs and Yield of Wheat under Different Irrigations |
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| DOI：10.7606/j.issn.1009-1041.2013.06.020 |
| 中文关键词: 小麦 碳同位素分辨率 水分 产量 相关性 |
| 英文关键词:Wheat Carbon isotope discrimination Irrigation Yield Correlation |
| 基金项目: |
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| 摘要点击次数: 1160 |
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| 中文摘要: |
| 为确定碳同位素分辨率（Δ13C）用于春小麦高产节水品种选育的最佳测定时期和器官，以2个小麦地方品种、14个育成品种(系)和2个引进品种为试验材料进行不同灌水处理，分析了小麦旗叶、茎秆和籽粒Δ13C值的差异及其与产量的相关性。结果表明，同一品种不同部位Δ13C存在较大差异，籽粒Δ13C均低于开花期旗叶和基部秸秆、成熟期旗叶和基部秸秆的Δ13C。小麦材料相同部位的Δ13C在中度水分胁迫处理（T2）下低于其他灌水处理(T1 、T3和T4)，在T2和轻度水分胁迫处理（T3）下，拔节期旗叶Δ13C与产量均呈显著负相关；在T3处理下，成熟期籽粒Δ13C与产量呈显著正相关。 |
| 英文摘要: |
| In order to determine the best determination stage and organ of the carbon isotope discrimination (Δ13C) used to breed high-yield and water saving varieties,2 local wheat landraces, 14 bred varieties (lines) and 2 introduced varieties were grown with different irrigation treatments in Ningxia.The correlation between the Δ13C in leaf,stem and grain with yield of wheat were analyzed.The results showed that there were bigger variation for the Δ of the same variety in different organs, the Δ13C of wheat grain was lower than that of flag leaf and stems at flowering and mature stage. The Δ13C of wheat grain under medium drought treatment (T2) was lower than that under other irrigation treatments (T1, T3 and T4), the Δ13C of flag leaf at jointing stage was significantly and negatively associated with yield under both medium drought treatment (T2) and mild drought treatment (T3); the Δ13C of grain was significantly and positively associated with yield under mild drought treatment (T3). |
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