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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.
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.
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.
卞周燮 충북대학교 엽연초연구소 1974 煙草硏究 Vol.2 No.-
1.This experiment carried out to study the proper quautity of the three major elements. N,P,K. Those fertilizers were applied in the paddy field consisted of clay loam where two crops a year can be possible. 2.In the plots of nitrogen fertilizer applied, the plot which was applied 8kg per 10a was produced less than the plot applied much quantity of nitrogen. The gap was about 40kg per 10a. But the income of the former was greater than the income of the latter. The gap of income was 252.30 per kg. 3.In the plots of ferilizing phosphate, yields showed no siguificant differences among fertilizing levels. The income of the plot of 16kg per 10a. had most income(334.70 per kg). 4.In the plots of fertilizng potassium, the yields was most in the plot of 16kg per 10a. But within treating level, the ligher the level was, the better the quality was.
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.
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.
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.