Differences in Starch Components and Related Enzymes Activity in the Grains of Different Wheat Cultivars Relationship Between Isozymes of Starch Synthases and Starch Composition in Germination Pinyon Seedlings Comparison of Starch,Protein Accumulation and Amyloplast Development in Wheat Cultivars with Strong ,and Weak Gluten Activities of Enzymes Involved in Starch Synthesis and Starch Accumulation in Grains of Two Wheat Cultivars with a Different Amylose Content The Relationship between Amylopectin Structure and Rice Pasteproperty of Indica/Japonica Cross Progenies