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围绕小麦抗倒伏问题,综合运用数据预处理、相关性分析、数据拟合、数理方程、微分方程等方法,根据已有的抗倒伏模型,进行了模型修正,运用修正的模型,计算了六种小麦的倒伏指数,计算结果与试验结论基本吻合,并从生活常识的角度对模型的合理性进行论证,在对小麦茎秆性状相关性分析中,讨论了小麦最优性状特征,得出不同穗重下的最优株型结构,在考虑麦穗自重的前提下,进行力矩分析,运用最小势能原理进行理论推导,建立茎秆抗倒伏数理方程模型,并从数值计算和图形分析两个方面对模型的合理性进行了论证.
Based on the existing lodging resistance model, aiming at the lodging resistance problem of wheat, the model was revised by using data pretreatment, correlation analysis, data fitting, mathematical equation, differential equation and so on. Using the modified model, The lodging index of wheat is basically consistent with the experimental conclusion, and the rationality of the model is demonstrated from the common sense of life. In the analysis of the correlation of wheat stem traits, the optimal traits of wheat are discussed, Under the premise of considering the self-weight of wheat ears, the torque analysis was carried out and the theoretical deduction was made by using the principle of minimum potential energy. The mathematic equation model of stem lodging resistance was established. From the aspects of numerical calculation and graphic analysis The rationality of the model is demonstrated.