生育初基의 土壤水分과 追肥 및 摘芯時期가 黃色種담배의 生育 및 收量構成要素에 미치는 影響 = Effect of Water Stress at Early Growth Stage, Side Dressing and Topping Stage on the Growth Pattern and Yield Components of Flue-cured Tobacco

다국어 초록 (Multilingual Abstract)

This study was conducted to investigate the effects of water stress(drought) at early growth stage, side dressing and topping stage on the growth pattern and yield components of flue-cured tobacco. The results are summarized as follows.
1.Drought at early growth stage retarded the rate of early growth, but the total amount of growth was recovered because of accelerated later growth.
2.Side dressing on the 30th day after transplanting(N : P2O5 : K2O = 1.5 : 1.5 : 3.0 g/plant) made the growth rate faster during maximum growth stage. Total growth amount showed little difference between side dressing and no side dressing,
3.In the plots of no side dressing, drought at early growth stage had little effects on the leaf area and dry leaf weight of Cutters. But in the plots of side dressing leaf area and dry leaf weight of Cutters were smaller in the plats of 15 day and 20 day drought than in the plots of 10 day drought and no drought. The longer the duration of draught was, the lesser the weight of unit leaf area was.
4.In the plats of no drought, leaf area of Leafs and Tips and dry weight of Leafs were unaffected by side dressing. But in the plots of drought at early growth stage, those were significantly affected by side dressing. The weight of unit leaf area of Tips and Green tips was lesser in the plots of 15 day and 20 day drought with side dressing than the other treatments.
5.Early topping made larger the leaf area of Leafs, Tips and Green Tips, and dry weight of Leafs and Tips than these of recommended stage of topping. Early topping in the plots of drought at early growth stage made little the weight of unit leaf area of Tips and Green Tips.
6.Though the dry leaf weight per a plant showed little differences among the treatments, yield components according to the leaf positions showed significant differences among the treatments.

목차 (Table of Contents)

• 緖論
• Ⅰ.硏究史
• 處理 및 栽培方法
• Ⅱ.實驗材料 및 方法
• 調査方法
• Ⅲ.實驗結果
• 1.生育狀況
• 2.收量構成要素 및 收量
• Ⅳ.考察
• Ⅴ.摘要