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小麦植株的矮化提高了品种的耐肥抗倒能力，但茎秆的矮化应有一定的限度，在不发生倒伏的前提下，株高与单产呈显著正相关，偏高的矮秆型比偏矮的矮秆型具有更高的产量潜力。矮化育种还应注重茎秆质量如茎粗、基部节间长度、茎秆机械强度等综合指标的选择。不同高度植株其倒伏指数不同。９０ｃｍ以上的植株倒伏指数最大，６０ｃｍ以下次之，６０～８０ｃｍ最低。
The dwarfing of wheat plants improved the tolerance of varieties to buckling, but the dwarfing of stalks should have some limits. Under the premise of no lodging, there was a significant positive correlation between plant height and yield, with high dwarf Shorter than the short stalk type has a higher yield potential. Dwarf breeding should also pay attention to the quality of stems such as stem diameter, length of basal internode, mechanical strength of stalks and other comprehensive indicators of choice. Different lodging plants have different lodging indices. The lodging index above 90 cm was the largest, followed by 60 cm, followed by 60-80 cm.