分蘖是小麦从根部发育出来的侧枝（见图1），早期生出的能抽穗结实的分蘖称为有效分蘖，晚期生出的不能抽穗或抽穗而不结实的称为无效分蘖。有效分蘖与单位面积的穗数直接有关。采集数据时对小麦去除叶片、叶鞘（见图2）。如果考虑叶片叶鞘以及降雨对抗倒的影

Packet : 附件二有关小麦和风级的一些知识.doc filelist

Packet : 附件三有关力学资料.doc filelist

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