The ability of accumulate Cadmium and the best harvest time of six series maize inbred lines in Cd-contaminated soil Relationship between Leaf Photosynthetic Parameters and Drought Resistance at Silking Stage in Maize Inbred Lines Analysis of Population Genetic Structure of Maize by SSR Marker and Heterotic Grouping Ion homeostasis in germinating seeds and seedlings of three maize inbred lines under salt stress Identification of Disease Resistance in Different Maize Inbred Lines to Puccinia polysora Underw.