利用国内外 3组关于不同类型小麦品种与不同播期的田间试验资料对小麦发育过程及生育期机理模型进行了较充分的检验。结果表明 ,模型对大多数生育阶段的绝对模拟误差集中在 0～ 5d,平均差平方和的根值 ( root mean square error,简称 RMSE)也一般小于 5d,尤其对出苗期、分蘖期、雌雄蕊原基分化期、抽穗期的模拟精度高、误差小。模型表现出较强的机理性以及较好的预测性和适用性 Field test data of three different types of wheat varieties and different sowing date were used to test the wheat growth process and the growth mechanism model adequately. The results showed that the absolute simulated error of the model for most of the fertility stages was concentrated in 0 ~ 5d. The root mean square error (RMSE) of the model was also less than 5d, especially for the emergence, tillering, Primitive differentiation, heading simulation of high precision, small error. The model shows a strong mechanism and good predictability and applicability