| 源库变化对小麦光合作用产物及其产量影响的研究（摘要） |
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| 引用本文： | 陈旭,刘佳音,江晓东.源库变化对小麦光合作用产物及其产量影响的研究（摘要）[J].农业科学与技术,2010,11(7):59-61. |
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| 作者姓名： | 陈旭 刘佳音 江晓东 |
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| 作者单位： | 陈旭,江晓东,CHEN Xu,JIANG Xiao-dong(南京信息工程大学应用气象学院,江苏南京,210044);刘佳音,LIU Jia-yin(南京信息工程大学数理学院,江苏南京,210044) |
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| 基金项目： | Jiangsu High School Natural Science Fund，Undergraduate Practice Innovation Project of Nanjing University of Information Science & Technology，Educational Reform Project of Nanjing University of Information Science & Technology(09JY0036).江苏省高校自然科学基金，南京信息工程大学大学生实践创新项目，南京信息工程大学教改项目 |
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| 摘 要： | 目的]探讨不同密度小麦的源库变化对小麦产量的影响。方法]采用225株/m2（D1）,320株/m2（D2）2种种植密度,并进行剪旗叶（L1）、剪倒二叶（L2）、剪上半穗（L3）和不做处理（对照）4个处理进行田间试验。结果]不同种植密度的小麦灌浆速率和千粒重均表现为L3〉对照〉L2〉L1;小麦穗粒重和各器官干物质转移量密切相关,不同种植密度的小麦各器官干物质转移量和穗粒重均表现为对照〉L2〉L1〉L3。结论]剪叶处理均显著降低了小麦千粒重和干物质转移量,导致产量显著降低,且剪旗叶处理产量下降显著高于剪倒二叶;剪上半穗处理千粒重显著增加,但由于库容量显著减小、干物质转移量显著下降,致使产量显著降低。
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| 关 键 词： | 源库变化 小麦 产量 灌浆速率 干物质转移量 |
Effect of Source-sink Change on Photosynthesis and Yield of Wheat |
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| CHEN Xu,LIU Jia-yin,JIANG Xiao-dong.Effect of Source-sink Change on Photosynthesis and Yield of Wheat[J].Agricultural Science ＆ Technology,2010,11(7):59-61. |
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| Authors: | CHEN Xu LIU Jia-yin JIANG Xiao-dong |
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| Institution: | 1.College of Applied Meteorology,Nanjing University of Information Science ＆ Technology,Nanjing 210044; 2.College of Math ＆ Physics,Nanjing University of Information Science ＆ Technology,Nanjing 210044 ) |
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| Abstract: | Objective] The paper aims to explore the influences of source sink change of wheat at different densities on wheat yield.Method] 225 （D1） and 320 plant/m2（D2） were adopted,then cutting flag leaf （L1）,the second last leaf （L2）,removing upper part of spike （L3） and controlling （CK） were used to conduct field experiment.Result] The results showed that both of the two densities of wheat＇s 1 000-grain weight and grain filling rate after anthesis in a decreasing order of L3〉CK〉L2〉L1,and the grain weight per spike and dry matter amount translated after anthesis turned to be CK〉L2〉L1 〉L3.Conclusion].Both of leaf-cutting and spikelet removing decreased the grain weight per spike and dry matter amount translated after anthesis.Removing upper part of spike increased wheat＇s 1 000-grain weight.But the decreasing of the sink and dry matter amount translated contributed to the decreasing of the yield of wheat. |
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| Keywords: | Source-sink change Wheat Yield Rate of grouting Dry matter transferred yield |
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