对小麦发育后期茎秆抗倒性问题的研究

针对小麦发育后期茎秆抗倒伏性问题,首先运用了数理统计与分析的相关知识,建立了各品种小麦的抗倒伏指数模型并对其进行了求解;其次,通过建立相关性系数模型并结合SPSS软件分析研究了抗倒伏指数与茎秆外部形态特征之间的关系;然后,建立了以抗倒伏能力最强和经济系数最大为目标的双目标优化模型来确定不同单穗重小麦的理想株型结构;最后,建立了基于力学分析的小麦茎秆抗倒伏性能的综合评价模型与抗倒伏风速模型.

Research on Lodging Resistance of Wheat Stem at Late Developmental Stage

As to the question of lodging resistance of wheat stem in this paper,we first build all varieties of wheat lodging index model by using the knowledge of mathematical statistics and analysis.Then,we analyze the relationship between lodging resistance index and external morphological characteristics of the stalk by establishing the model of correlation coefficients and using SPSS software.Also,we build double objective optimization model aimed at the strongest lodging resistance and the highest economic coefficient to determine the ideal plant structure of the different single spike weight of wheat.Lastly,we build evaluation model based on the mechanical analysis of the lodging resistance performance and lodging resistance of wind.