中文摘要：

在3个不同土壤水分含量下,以中浙优1号、甬优9号、中旱221以及中旱3号4个不同类型的水稻品种为试验材料,定量描述了水稻叶龄、叶长、叶宽、节间长度、节间粗和株高随生育进程和环境条件的变化规律,构建了基于生长过程的水稻形态指标变化动态模拟模型,并利用水稻田间试验资料对所建模型进行了测试和检验。结果显示,水稻叶龄、前半段节位最大叶长、后半段节位最大叶长、最大叶宽、节间长度、节间粗和株高的均方根误差（RMSE）分别为0.553、5.694 cm、6.136 cm、0.301 cm、2.353 cm、0.328 mm、8.489 cm。表明所构建的模型对水稻植株形态指标具有较好的预测性。

英文摘要：

To develop the dynamic simulation models of morphological character based on growth process in rice,the field experiments with 3 soil water contents were carried out on 4 rice cultivars,Zhongzheyou 1,Yongyou 9,Zhonghan221,and Zhonghan 3,and the growth and development of rice leaf age,leaf length,leaf width,internode length,internode width,and plant height were analyzed. The models were validated with independent field experiment data. The root mean square errors（ RMSEs） of leaf age,max leaf length（ node ≤11）,leaf length（ node ≥12）,max leaf width,internode length,internode width and plant height were 0. 553,5. 694 cm,6. 136 cm,0. 301 cm,2. 353 cm,0. 328 mm,8. 489 cm,indicating that these models had good performance in predicting the rice plant morphological character.