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冬小麦穗部形态结构模型是功能–结构小麦模型的重要研究内容。以济麦22、泰农18和鲁原502为材料,于2013—2014和2014—2015年度开展了品种和施氮试验。结合2013—2014年数据,分析穗部主要形态参数与器官生物量的定量关系及形态参数间的内在联系,构建了冬小麦穗部主要形态结构模型。经2014—2015年小麦生长数据检验,除穗长模型精度略低外,穗宽、穗厚、颖壳长、颖壳宽、颖壳厚、籽粒长、籽粒宽和籽粒厚模型精度均较高,所建模型可较好模拟不同品种与施氮水平冬小麦穗部主要形态结构。
Winter wheat ear morphological structure model is an important research content of the functional-structure wheat model. With the materials of Jimai 22, Tianyong 18 and Luyuan 502, the varieties and nitrogen application tests were carried out in 2013-2014 and 2014-2015. Based on the data of 2013-2014, the quantitative relationship between the main morphological parameters of panicle and organ biomass and the inherent relationship between morphological parameters were analyzed, and the main morphological structure models of winter wheat were established. According to the test of wheat growth data from 2014 to 2015, the precision of spike length, panicle thickness, glume length, glume width, glume shell length, grain length, grain width and grain thickness were all higher The model can simulate the main morphological structure of winter wheat ear with different varieties and nitrogen levels.