CAJ | 학술논문

[目的]对田间小麦叶片进行无损监测，从数字图像处理的途径探讨田间小麦旗叶几何表型的测试方法，以期建立小麦旗叶几何表型与氮肥管理的关系。[方法]以宁麦13为试验材料，对其进行不同的氮肥处理．并采用数码相机及辅以数字图像处理的技术手段．探讨小麦旗叶的叶面积、长度和平均宽度与施氮量的关系。[结果]肥料处理是影响小麦旗叶几何表型的重要环境因子，不同的氮处理可令旗叶面积变化达4倍，小麦旗叶长度也可从15．87cm增长到25．33cm，因此小麦旗叶几何表型是鉴定前期肥料供应量的显著特征。旗叶表型与氮处理之间的高精度拟合关系表明该无损检测技术是研究小麦田间表型、氮肥及环境因子响应规律的可靠技术手段。[结论]该研究表明使用带标尺刻度的动态背景板数字图像处理技术是获取田间无柄及小叶作物几何表型的有效手段，其为田间条件下作物叶片器官生长动态的无损监测提供了一个可行的技术方案。
[목적]대전간소맥협편진행무손감측，종수자도상처리적도경탐토전간소맥기협궤하표형적측시방법，이기건립소맥기협궤하표형여담비관리적관계。[방법]이저맥13위시험재료，대기진행불동적담비처리．병채용수마상궤급보이수자도상처리적기술수단．탐토소맥기협적협면적、장도화평균관도여시담량적관계。[결과]비료처리시영향소맥기협궤하표형적중요배경인자，불동적담처리가령기협면적변화체4배，소맥기협장도야가종15．87cm증장도25．33cm，인차소맥기협궤하표형시감정전기비료공응량적현저특정。기협표형여담처리지간적고정도의합관계표명해무손검측기술시연구소맥전간표형、담비급배경인자향응규률적가고기술수단。[결론]해연구표명사용대표척각도적동태배경판수자도상처리기술시획취전간무병급소협작물궤하표형적유효수단，기위전간조건하작물협편기관생장동태적무손감측제공료일개가행적기술방안。
[Objective] The aim was to conduct non-destructive monitoring on wheat leaf in field and discuss the method to measure geometric phenotype of flag leaf through digital image processing in order to establish relationship between geometric pheno- type of flag leaf and N fertilizer regulation. [Method] Ningmai 13 was applied with N fertilizers in different amounts to discuss relationship among area, length, average width of flag leaf and applied N fertilizers using digital camera and digital image pro- cessing technique. [Result] Fertilizer is a main environmental factor influencing geo- metric phenotype of flag leaf, for example, area of flag leaf would enlarge four times and the length would increase from 15.87 to 25.33 cm by different N fertilizer amount. Thus, geometric phenotype of flag leaf would reflect N fertilizer amount at early stage. The highly accurate relationship between phenotype and N fertilizer is a reliable tech- nique to study on rules of wheat phenotype, N fertilizer and environmental factors. [Conclusion] The research indicated that digital image processing technique with scale label and dynamic background plates is an effective method to obtain geometric phenotype of sessile crops and crops with little leaf, providing a feasible scheme for non- destructive monitoring on growth dynamic of leaf＇s organs.