Appropriate amount of nitrogen fertilizer for shading cultivation of tea tree seedlings . Strong solar irradiance reduces growth and alters catechins concentration in tea plants over winter. Analysis of Ingredient Content and Taste of Black Tea using Frost-damaged Tea Leaves. Changes in Matcha Quality and Growth Characteristics from Cultivation under Different Shading. Alterations in the Components and Taste of Eel Soup by Green Tea Supplementation. Comparison of Active Components and Quality Characteristics of Black Tea from Korean Tea Cultivars. Changes in Ingredient and Quantity of Hadong Traditional Black Tea (Jaeksal) according to Harvest Periods. Changes in Chemical and Sensory Quality of Oolong Tea Ingredients and Quantity according to Shading and Anaerobic Treatment.