Characteristic of sulfur absorption of high oil maize, high starch maize and effect of sulfur application on its yield and quality Differences in  seed kernel quality and related enzyme activities of different quality type peanut cultivars. Dynamic Changes of Starch Accumulation and Enzymes Relating to Starch Synthesis in the Grain of Three Winter Wheat Cultivars with Different Quality Types Comparison of Multiplication of Endosperm Cell and Physiological Activity in Developing Kernels among Normal Corn, Glutinous Corn and Pop Corn Contents of Protein Components Stored in Grains and Activities of Related Enzymes in Wheat Cultivars in Different Quality Types