잎담배生産과 裁培環境과의 關係에 關한 解析的 硏究 : 第十五報 土壤水分, 日射條件 및 摘芯時期가 잎의 形質에 미치는 影響 Part XV Effects of Soil Moisture, Solar Radiation and Time of Topping on the Leaf Characteristics of Tobacco Plants = Analytical Studies on the Relationship between Leaf Production and Environmental Factors in Tobacco Culture

다국어 초록 (Multilingual Abstract)

This experiment was conducted to study the effects of soil moisture, solar radiation and topping time on the leaf characteristics of tobacco plants.
The results are summarized as follows :
1.In the case of soil moisture deficient treatment, yield in the plot treated deficient soil moisture at early growth stage is more than that at later part of maximum growth stage.
2.Yield in the plot shaded at early growth stage is high and shading at maturing time made less the leaf area, weight of a leaf and yield. Shading before topping made low the percentage of dry matter.
3.There was little difference in yield at diferent topping time, but interaction between soil moisture content and shading effected significantly on the leaf characteristics.

목차 (Table of Contents)

• Ⅰ.緖論
• Ⅱ.實驗材料 및 方法
• Ⅲ.實驗結果
• 1.生育狀況
• 2.收穫葉數 및 葉面積
• 3.單位葉面積重 및 乾物率
• 4.葉重
• 5.葉厚, 收縮率 및 中骨比率
• 6.收量
• Ⅳ.考察
• Ⅴ.摘要