论文部分内容阅读
以番茄(Lycopersiconesculentum)的发育生理生态过程为基础,以作物生理发育时间为尺度,利用不同地点、播期、品种试验,建立了温室番茄发育模拟模型,并用南京和上海的试验数据对模型进行了检验。结果表明,模型能较好地预测各个发育阶段(发芽、苗期、开花、结果和采收)的出现时间和持续日数。模拟值与观测值的回归估计标准误差(RMSE)分别为0、1、1.87、2.69、3d,明显高于以有效积温为尺度的模拟模型预测精度(RMSE分别为0、7.91、8.86、13.58、12.59d)。
Based on the development physiological and ecological processes of Lycopersicon esculentum, the model of greenhouse tomato development was established based on the time of physiological growth of crops and the experiment of different locations, sowing date and varieties. The model was conducted with the experimental data from Nanjing and Shanghai test. The results show that the model can better predict the appearance time and duration of each developmental stage (germination, seedling stage, flowering, fruiting and harvesting). The regression estimated standard errors (RMSE) between simulated and observed values were 0, 1, 1.87, 2.69 and 3 d, respectively, which were significantly higher than those predicted by effective accumulated temperature (RMSE = 0,7.91,8.86,13.58, 12.59d).