施肥量 및 施肥方法이 黃色種 담배 初期生育 및 收量에 미치는 影響

卞珠燮,趙成鎭,盧載榮,申周植 충북대학교 엽연초연구소 1984 煙草硏究 Vol.11 No.-

This experiment was carried out to study the effects of different amount of nitrogen and potassium applied and dressing methods on the growth and yield components of flue-cured tobacco The results are summarized as follows. 1.Growth was promoted by increased nitrogen level in the plot of high potassium application. 2.In the low level of nitrogen applications early growth was good in the plot of planting hole application, but there were little differences of growth among the treatments after middle part of maximum growth stage. 3.Weight per leaf area decreased by the increasing level of nitrogen with high potassium application. 4.Except the highest level of nitrogen (15㎏/10a), the weight per cured leaf was larder in the plot applied basal application 33 : first top dressing 33 : second top dressing 33 than in the plot applied 50 : 25 : 25. 5.Increased amount of potassium application made the leaf area contract ion ratio low and specific leaf weight high.

黃色種 담배의 葉位별 物質生産에 關한 硏究 (I)

卞珠燮,盧載榮,裵吉寬,申周植 충북대학교 엽연초연구소 1993 煙草硏究 Vol.14 No.-

Dressing increased amount of nitrogen for higher yield has influences on the yield and quality of leaf tobacco, especially on the accumulation of nitrate in the leaf to deteriorate smoking taste and odor. This study was carried out to investigate the effects of different amount of nitrogen, dressing method and nitrogen types(NH4 -N, NO3- N, and Urea- N) on the dry matter production and NO3- N accumulation of every leaf position. The results are summarized as follows. 1.Total leaf weight per a plant and dry weight per unit leaf area of all leaf positions were high in the treatment dressed urea-N 50% increased amount and those were higher in NO3-N than in NH4-N treatment. 2.The area and weight of the largest leaf were large in the treatment of NO3-N 50% increased amount. 100% increased amount of nitrogen made the area and weight of the largest leaf small, compared with the treatment of the recommended amount of nitrogen. 3.70% basal dressing and 30% side dressing of Urea-N and NO3-N made the total leaf weight per a plant, dry weight per unit leaf area and weight per a leaf largest. But in the treatment of 100% increased amount 50% basal dressing and 50% side dressing was efficient. 4.The larger the amount of nitrogen dressed, the higher the content of NO3-N in the leaves of all positions was. The highest content was shown in the lower leaf position treated increased amount of NO3-N. 5.In the leaves of all leaf positions, the content of nicotine, total nitrogen and protein nitrogen were high and the content of carbohydrate was low in the treatment dressed increased amount of nitrogen. There were little differences of the content of those chemical compounds according to the type of nitrogen and method of dressing. 6.The accumulation of NO3-N in the leaves was increased by the treatment of dressing NO3-N 15kg/10a or more and side dressing 50 days after transplanting and later, and those treatment made the lower leaves malodorous, like odor produced while burning protein.

담배(Nicotiana tabacum L.)의 生長과 Alkaloid 生成에 미치는 無機營養素의 影響에 관한 硏究

卞珠燮 충북대학교 엽연초연구소 1982 煙草硏究 Vol.9 No.-

This study was conducted to invest irate the influence of mineral nutrients on the growth, Alkaloid formation and quality of tobacco plants. Tobacco plants were grown at different concentration of nine mineral elements : nitrogen, Phosphorus, potassium, magnesium, iron, manganese, molybdenum, boron, and zinc; by hydroponics. The growing character isle, chemical components in the leaves and nicotine format ion were investigated and analysed. The results obtained are as follows, 1.In the plot of high level of nitrogen, growth of the aerial part was large, nitrogen and nicotine contents in the leaves and roots were high and protein contents in the leaves was high. 2.In the plot of high level of potassium the amount of root growth was large, the contents of sugar in the leaves was high, and the quality of the leaves was improved. 3.Under the condition of low iron level, high levels of phosphorus increased total nitrogen and nicotine contents in the roots. 4.The lower concentration of nitrogen, potassium and iron in ctrl tare solution were, the higher the T/R ratio was. 5.Dry weight and the nicotine formation amount of the roots were increased in the plot of high level of iron. 6.High level of nitrogen and manganese induced less Carbohydrate/Alkalo fraction and deteriorated the quality of cured leaves.

잎담배의 葉質에 關한 硏究 : 培養液의 pH變化가 담배의 生長 및 Nicotine 生成에 미치는 影響 Effect of pH on the Growth and Nicotine Formation of Tobacco Plant

卞珠燮,趙成鎭,盧載榮,裵吉寬 충북대학교 엽연초연구소 1982 煙草硏究 Vol.9 No.-

This experiment was conducted to investigate the influence of pH, concentration of iron and phosphate and their interaction on the formation of nicotine in tobacco plants. For different levels of pH and phosphate respectively and two levels of iron were treated in thin experiment. The experimented tobacco plants were cultured by water culture in the greenhouse. The results are summarized as follows. 1.Stem height, stem diameter, length and with of the largest levels and number of total leaves increased at the plot of pH 5.5 and pH 7.0. 2.In the plot of treated 0.5 ppm of iron and 30 ppm of phosphate, weight of total leaves and weight of unit leaf area were large. It is considered that the yield increase was due to the increase of the weight of unit leaf area. 3.The root weight increased by treatment of 0.5 ppm of iron. And the root weight of the plot treated 0.5 ppm of iron increased by the treatment of 30 ppm of phosphate. 4.The difference nicotine content in the loaves among the treatments showed the same tendency as the root But there were no differences between the nicotine content at different concentation of phosphate in the case of 1.0 ppm of iron, and there were no differences between the nicotine content at different concentration of iron in the case of 60 ppm of phosphate.

胚培養에 의한 人蔘의 多莖幼苗 作出에 대하여

卞珠燮,鄭燦文 충북대학교 엽연초연구소 1999 煙草硏究 Vol.17 No.-

This study was carried out to obtain the basic information for multi-stem seedling of ginseng by treatment of low temperature and growth regulator with embryo culture. When the seed was treated at 5℃ for 60 days, embryo was germinated more than 70% and was good initiation of adventitious bud in in vitro. 2 or 3 of adventitious bud per plant was best condition to have the multi-stem seedling. When the growth regulator was treated to the multi-stem seedling, the effect of growth regulators was approved with treatment of 1mg/ℓ of GA + BA and GA + BA + IBA. However, the survival ratio of the multi-stem seedling produced in invitro was about 2% in the field conditions, showing not good growth.

잎담배의 葉質에 關한 硏究 : 鐵榮養이 Nicotine 生産에 미치는 影響 Effects of Ferrous Nutrient on the Production of Nicotine

卞珠燮 충북대학교 엽연초연구소 1978 煙草硏究 Vol.5 No.-

This experiment was conducted to investigate the effects of N, P2O5, K2O and Fe nutrients on the top and root growth rind nicotine production in water-cultured flue-cu-red tobacco. The results obtained are as fellows. 1.High level of nitrogen and potassium supply increase the amount of top and root growth and the production of nicotine, but the different levels of phosphate had little effects on them. 2.The effects of high level of ferrous nutrient showed significant increase in the dry matter of root and the production of nicotine, but significant increase in top growth.

터키葉의 葉質에 關한 硏究 : 燐酸 및 칼리의 施用이 收量 및 內容成分에 미치는 影響 Effect of fertilizing P₂O_5 and K₂O on yield and chemical components of leaf

卞珠燮 충북대학교 엽연초연구소 1976 煙草硏究 Vol.3 No.1

This experiment was performed to get some useful information on culturing oriental tobaccos. The main purpose of the present study was aimed at effects of the application of phosphorus and potassium on yield and chemical compositions of the leaf. Investigated varieties were Samsun and Xanthi Yaka imported from the native country as a source of aromatic leaf tobaccos. The results obtained are as follows. 1.The contents of nicotine, total soluble sugar and protein·N in Xanthi Yaka were higher than those in Samsun. 2.The content of total soluble sugar increased with the increased application of K2O, and had a tendency of increasing with increased amounts of P2O5. Meanwhile, the applied nitrogen lowered the content of it. 3.The content of nicotine increased with the application of nitrogen, whereas the content of protein-N decreased with the application of P2O5. 4.Yield showed little defference between varieties, because the total area of the largest leaf and the fresh leaf weight were high in Samsun and the percentage of dry matter was high in Xanthi Yaka.

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

盧載榮,卞珠燮,申周植,李鶴洙 충북대학교 엽연초연구소 1980 煙草硏究 Vol.7 No.-

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.

石灰 및 鹽素營養이 담배의 生育과 收量, 品質에 미치는 影響

裵吉寬,卞珠燮,盧載榮 충북대학교 엽연초연구소 1986 煙草硏究 Vol.12 No.-

This experiment was conducted to investigate the effect of Ca and Cl concentration in water culture solution on the growth and yield of free-cured tobacco. Results of Ca treatment ; 1.Dry weight of harvested leaves was largest in Ca 150 ppm plot. 2.Leaf growth was inhibited, and the length/width ratio of leaf was large in Ca 0 ppm plot. 3.Root growth was much inhibited and so T/R ratio was increased in Ca O ppm plot. Result of Cl treatment ; 4.Stem height and leaf area were largest in Cl 100 ppm plot, and leaf shape was not influenced in accordance with Cl concentration in culture solution. 5.Dry weight of harvested leaves was increased with the increases of Cl concentration (12.5, 25, 50, 100ppm) in culture solution but the weight in the plot of 200ppm of Cl was smaller than those in 50 and 100ppm of Cl. 6.Differences of dry weight of stem and root skewed the same tendency as that of dry weight of leaf. 7.T/R ratio was highest in Cl 200 ppm plot.

香草의 收量品質에 미치는 移植時期의 影響

李哲煥,卞珠燮 충북대학교 엽연초연구소 1988 煙草硏究 Vol.13 No.-

Hyangcho was transplanted from April 5th to June 5th with 15days interval, and on July 5th. As the transplanting date became later days to flower shortened, yield and quality by price deceased. As the transplanting date delayed the content of total nitrogen, protein nitrogen, nicotine and pH increased, but reducing sugar and pet. ether extracts decreased. Reducing sugar and pet. ether extracts content higher in the leaves of polyethylene firm mulching system than in non-mulched ones.