Abstract: Maize plants were treated by the low temperature under different water conditions during seedling and tasseling periods in the artificial climate chamber to determine the impacts of low temperature, drought and their combination on maize yield in the Northeast China. Based on the results of the controlled experiment, the WOFOST model was applied to simulate the integrated impacts of low temperature and drought on maize yield. The results of both experiment and simulation showed that the low temperature, drought and their combination would lead to decrease of maize yield to a certain extent. The impacts of the low temperature and drought combination would reduce the maize yield by 34.5% which was higher than by low temperature and drought separatedly.

Key words: WOFOST model, WOFOST model, Low temperature, Drought, Maize, Impact