Hot-dry windy climate is the weather phenomenon of low humidity, high temperature, and wind stress occurring simultaneously, which causes great reduction of wheat yield in northern China during grain filling stage. As a compatible solute in cells, glycinebetaine plays an important role in tolerance to environmental stresses of plants. In this study, we used three betA transgenic wheat lines and their wild type (WT) to disclose the effects of glycinebetaine accumulation on the growth and yield components of ...