1Study on the Starch Metabolism and Ultrastructure of Starch Grain in Apple Fruit Development Process 141-144
2Application of Numerical Taxonomy of Pollen Morphology on Origina tion, Evolution and Classification of Pyrus L. In China145-148
8Study on the Fruit Softening Characteristics and the Changes of Flesh Color of Postharvested Green Mume 171-174
9Study on the Quantitative Distribution of Some Fruit Qualitative Charac ters of Japanese Apricot (Armeniaca mume Sieb.) Cultivars and Their E valuation Criteria175-179
11Detection of Zucchini Yellow Mosaic Virus in Northern China and Resis tance Test in Some Watermelon Cultivars 184-187
