Difference in Sugar Accumulation of Pineapple Fruit Harvested in Different Seasons Difference in Sugar Accumulation of Pineapple Fruit Harvested in Different Seasons Effect of water-logging and nitrogen form on substrates of sugar and nitrogen metabolism in maize (Zea mays L.) at seedling stage Effects of Endophytic Fungus on Sugar Content and Key Enzymes Activity in Nitrogen and Sugar Metabolism of Sugar Beet(Beta vulgaris L.) Effects of Summer Shoot Growth on Sugar Metabolism and Abscission of Fruitlet in‘Shatangju’Mandarin Effects of Summer Shoot Growth on Sugar Metabolism and Abscission of Fruitlet in‘Shatangju’Mandarin Soluble Sugar Accumulation and the Activities of Sugar Metabolism related Enzymes in Cistanche deserticola and Its Host Haloxylon ammodendron Effect of potassium on sugar metabolism in resistant response to corn stalk rot Effect of molybdenum on growth of winter wheat seedlings induced by low temperature Effects of Exogenous Substance on Starch Synthesis and Related Enzymes Activity in Chinese Chestnut A Study on the Relationships between Acid Invertase , Sucrose Synthase andSucrose Metabolism in ‘Red Fuji’Apple Fruit A Study on the Relationships between Acid Invertase , Sucrose Synthase andSucrose Metabolism in ‘Red Fuji’Apple Fruit Characteristics of Sugar Metabolism and Related Enzyme Activity of Bagged Pear Fruits during Storage