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越冬前植株地上部形态建成是冬小麦株型构建和可视化的重要基础。为定量分析冬小麦越冬前植株地上部形态结构参数与器官生物量的关系,以济麦22、泰农18和鲁原502为材料,于2013—2014和2014—2015年度开展品种和施氮试验。利用2013—2014年度越冬前植株地上部形态结构参数和器官生物量等数据构建了冬小麦越冬前植株地上部形态结构模型。经2014—2015年度数据检验,除叶鞘长和叶弦长模型精度略低外,叶长、最大叶宽、叶切角和叶弦角模型精度均较高,所建模型可较好地模拟不同品种与各施氮水平冬小麦越冬前植株地上部形态结构。
The morphological establishment of shoots before winter is an important basis for the construction and visualization of winter wheat plants. In order to quantitatively analyze the relationship between aboveground morphological parameters and organ biomass of winter wheat before winter, the varieties and nitrogen application experiments were carried out in 2013-2014 and 2014-2015 with the materials of Jimai 22, Tianyong 18 and Luyuan 502. Based on the data of morphological structure and organ biomass of aboveground parts of winter wheat before 2013-2014, the morphological models of aboveground parts of winter wheat were established. The data of 2014-2015 showed that the precision of leaf length, maximum leaf width, leaf cut angle and leaf chord angle model were higher except for the lower precision of leaf sheath length and leaf chord length model. Variety and nitrogen fertilizer level of winter wheat before winter.