Study on the Relations of Leaf Morghology Indexes and Drought Resistance of Maize

The maize characters and relations of leaf morghology of different drought resistance varieties were studied under moderate water stress. The results showed that the leaf senescent index and leaf rolling index were positively related to the drought resistance, while leaf shape value, leaf orientation value were in the opposite way. According to the results of gray association analysis, it could be concluded that leaf shape value, leaf orientation value were more important relations to drought resistance than the leaf rolling index and leaf senescent index. The leaf morghology indexes of above were one of the important indexes of the identification of drought resistance of maize.