播種期, 土壤水分 및 日射條件이 黃色種 담배의 生育 및 收量構成要素에 미치는 影響 = Effects of Sowing Time, Soil Moisture Stress and Shading on the Growth and Yield Components of Flue-cured Tabacco.

다국어 초록 (Multilingual Abstract)

This study was conducted to study the effects of sowing time (transplanting time), soil moisture stress and shading after topping on the growth and yield components of flue-cured tobacco, The results are summarized as follows.
1.Leaf area of Cutter and Leaf of early sowing plot was increased by late soil moisture stress, but that of late sowing was increased by early soil moisture stress. Early soil moisture stress made the Lugs small and late soil moisture stress made the Green Tip small.
2.Soil moisture stress delayed the emergence of Leaf and Tip, the period from transplanting to topping and the beginning of maximum growth stage of Cutter and the upper leaves. But soil moisture stress before maximum growth stage of stem made the stem longer.
3.Dry weight per unit leaf area and percentage of dry matter were increased by early sowing and decreased by soil moisture stress. The decreasing rate of dry weight per unit leaf area and percentag of dry matter according to the soil moisture stress treatment were greater in the plot of early sowing than in the plot of late sowing.
4.Dry weight per unit leaf area and percentage of dry matter of the Leaf decreased by shading after topping. And those of the Cutter decreased by shading after 10 days from topping in the case of early sowing, but not in late sowing.
5.In the case of late sowing, the leaf thickness of all stalk positions decreased by soil moisture stress treatment. But in the case of early sowing, the leaf thickness of Lug, Cutter and Leaf was decreased by late stress, early stress and early to middle stress, respectively.
6.Dry weight of Lug and Green Tip was small in late soil moisture stress treatment, and that of Cutter in middle to late stress treatment. Middle to late soil moisture stress made the dry weight of Leaf large in the plot of early sowing, and made that small in late sowing.
7.Middle to late soil moisture stress decreased the leaf weight per plant.
8.Significant correlation coefficients between yield and quality components and crop growth rate at certain growing stage were shown. The growth amount of Lug for 10-day period after 20 days, that of Cutter for 10-day period after 10 days, that of Leaf for 10-day period after 40 days, and that of Tip for Tip for 10-day period after 50 and 80 days from transplanting, respectively, was shown critical to the yield and quality components of each stalk position.

목차 (Table of Contents)

• 緖言
• Ⅰ.實驗材料 및 方法
• Ⅱ.實驗結果
• 1.生育狀況
• 2.葉位別 葉面積 增大 過程
• 3.單位葉面積當 乾物重 및 乾物率
• 4.葉厚 및 比重
• 5.一葉重
• 6.株當 葉面積 및 葉重
• 7.몇가지 形質間의 相關關係
• Ⅲ.考察
• Ⅱ.摘要