The impacts of global climatic change on chilling damage distributions of maize in Northeast China THE EFFECT OF LOW TEMPERATURE PRETREATMENT ON ATPase ISOZYMES OF ROOT IN FOUR PLANT SEEDLINGS Assessment for spatial uncertainty of daily minimum temperature by using sequential Gaussian simulation. THE EFFECTS OF LOW TEMPERATURE ON SEEDLINGS GROWTH AND THE CHANGES OF ISOZYMES IN THREE CROPS Monitoring and Predicting of Maize Chilling Damage Based on Crop Growth Model in Northeast China Spatio-temporal distribution of maize chilling damage intensity in the Three Provinces of Northeast China During 1961to 2013