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정기택,조수헌,복진영,이종률,Jeong, Kee-Taeg,Cho, Soo-Heon,Bock, Jin-Young,Lee, Joung-Ryoul 한국연초학회 2007 한국연초학회지 Vol.29 No.1
This study was conducted in order to predict the chemical and physical properties by climatic factors during the growing season of flue-cured tobacco as soon as possible. The data of eight chemical and five physical properties were collected from "Analysis of physical and chemical properties on farm leaf tobacco" conducted at KT&G Central Research Institute from 1987 through 2006. Data of climatic factors from April to July in 10 districts were collected from Korea Meteorological Adminstration. Except for yellowness(b), all probabilities of linear regression equations between the climatic factors(X) and the average contents of twelve grades(whole plant) for chemical and physical properties(Y) were significant($P{\leq}0.05$). The predicable probabilities within ${\pm}20%$ range of difference were 100% in ether extract content, in nicotine content, and in filling value, 90% in total nitrogen content, and 70% in total sugar content. These results suggest that the regression equations may be useful to predict the average content of twelve grades for eight chemical and four physical properties by climatic factors during the growing season of flue-cured tobacco at the beginning of August.
정기택,조수헌,복진영,이종률,Jeong, Kee-Taeg,Cho, Soo-Heon,Bock, Jin-Young,Lee, Joung-Ryoul 한국연초학회 2007 한국연초학회지 Vol.29 No.1
This study was conducted in order to predict the chemical and physical properties by climatic factors during the growing season of burley tobacco as soon as possible. The data of six chemical and five physical properties were collected from "Analysis of chemical and physical properties on farm leaf tobacco" conducted at KT&G Central Research Institute from 1987 to 2006. Data of climatic factors from April to July in 6 districts were collected from Korea Meteorological Adminstration. Except for total nitrogen, total nitrogen/nicotine and yellowness(b), all probabilities of linear regression equations between the climatic factors(X) and the average contents of twelve grades(whole plant) for chemical and physical properties(Y) were significant($P{\leq}0.05$). The predicable probabilities within ${\pm}20%$ range of difference were 100% in ether extract content, 95% in nicotine content, and 90% in filling value. These results suggest that the regression equations may be useful to predict the average content of twelve grades for four chemical and four physical properties by climatic factors during the growing season of burley tobacco at the beginning of August.
정기택,조수헌,복진영,박성원,이종률,Jeong, Kee-Taeg,Cho, Soo-Heon,Bock, Jin-Young,Park, Seong-Weon,Lee, Joung-Ryoul 한국연초학회 2007 한국연초학회지 Vol.29 No.2
This study was conducted to evaluate the prediction of sensory property of smoke from the leaf chemical property and characterize leaf chemical components for the best tobacco taste's leaves in burley tobacco. For analytical and sensory evaluations, sixteen grades were used. The major leaf chemical components to predict the sensory property of smoke were ether extract for tobacco-like, chloride for impact and total nitrogen/nicotine for irritation. Within ${\pm}20\;%$ range of difference, the predictable probabilities of sensory property of smoke from the leaf chemical properties were 100 % for tobacco-like, impact and irritation. As a result of K-means cluster analysis on the basis of tobacco taste, the desirable leaf chemical component contents were $6.5{\sim}6.8\;%$ in ether extract, $0.25{\sim}0.30\;%$ in chloride and $1.26{\sim}1.54$ in total nitrogen/nicotine ratio. This study suggest that the some regression equations may be useful to predict the sensory components of tobacco smoke from a few selected leaf chemical properties in burley tobacco and to select the burley tobacco leaves for enhance the tobacco taste of cigarette.
정기택,조수헌,김시몽,박성원,이철희,Jeong, Kee-Taeg,Cho, Soo-Heon,Kim, Si-Mong,Park, Seong-Weon,Lee, Chul-Hee 한국연초학회 2007 한국연초학회지 Vol.29 No.2
This study was conducted to evaluate the prediction of sensory characteristics of smoke from the leaf chemical compounds and characterize leaf chemical components for the best tobacco taste's leaves in oriental tobacco. For analytical and sensory evaluations, seventy two grades were used. Sensory evaluation of tobacco smoke for six attributes were scored on fifteen-point scale by $10{\sim}14$ expert panels trained to estimate smoking quality quantitatively. The major leaf chemical compounds to predict the sensory characteristics of smoke were ether extract for tobacco-like, nicotine for impact and total nitrogen/nicotine ratio for irritation, and total sugar for off taste & odor. Within ${\pm}20%$ range of difference, the predictable probabilities of sensory characteristics of smoke from the leaf chemical compounds were 87.5 % for off taste & odor and $94.4{\sim}98.6\;%$ for tobacco-like, impact and irritation. As a result of K-means cluster analysis on the basis of tobacco taste, the desirable leaf chemical compound contents were $5.9{\sim}8.3\;%$ in ether extract, $1.35{\sim}2.27\;%$ in nicotine and $1.17{\sim}2.24$ in total nitrogen/nicotine ratio. This study suggest that the some regression equations may be useful to predict the sensory characteristics of tobacco smoke with a few selected leaf chemical compounds in oriental tobacco and to select the oriental tobacco leaves by means of enhancing the tobacco taste of cigarette.
향끽미종 잎담배 ST375-4의 신재배법 연구 제2보 Vinyl pot 크기의 pot당 육묘주수가 이식묘의 생육특성에 미치는 영향
정기택,반유선,유익상,Jeong, K.T.,Ban, Y.S.,Yu, I.S. 한국작물학회 1981 한국작물학회지 Vol.26 No.4
An experiment was carried out to investigate the effect of the vinyl pot size and number of plants per pot on the seedling growth. Dry weight per plant, coefficient of variance and dry weight/fresh weight ratio increased as pot size increased, but competitive index, unit productivity and top/root ratio decreased. Dry , weight per plant decreased with increase in number of plants per pot, but coefficient of variability, competitive index and unit productivity increased. Dry weight per plant of the check plot (1 seedling/3.5cm $\times$ 3.5cm pot) showed little difference between 3 plants/4cm x 4cm pot and 5 plants/5cm x 5cm pot. Temporary transplanting of five plants per 5cm $\times$ 5cm pot saved seedbed area and seedbed materials by 60.9% and labor of transplanting by 36.3% as compared with check plot.
Relationship of Growth Characteristics and Leaf Surface Lipid of Tobacco
정기택,반유선,유익상,Jeong, Gi-Taek,Ban, Yu-Seon,Yu, Ik-Sang The Korean Society of Tobacco Science 1983 한국연초학회지 Vol.5 No.2
향끽미종잎담배인 소향의 시비량을 달리하여 엽면수지량과 생육형질과의 관계를 조사한 바, 주당 및 단위 엽면적당의 엽면수지량은 질소수준간에 유의차를 보여 3k9/ 10a수준에서 많았고 인산 및 가리의 영향은 유의성이 인정되지 않았다. 주당엽면적수지량은 초장. 최대영장과 폭. 주당건엽중 및 생명중과 평균엽면적 과는 각각 정 (+). 엽후와는 부(-)의 상관이 나타났다. 단위엽면적당 엽면수지량은 단위엽면적중 및 건물율과는 정 (+), 평균엽면적과는 동일 질소수준에서 부(-)의 상관이 나타났다. This experiment was conducted to investigate effects of fertilizers on leaf surface lipid(LSL) , and relationship between growth characteristics and LSL of aromatic tobacco, cv. Sohyang, grown in pots with 3 rates of N, P and K. With increasing the amount of applied nitrogen from 3 to 6kg110a, the contents of LSL per plant and per leaf area were decreased For maximum LSL Per plant and per leaf area nitrogen of 3kg/10a was required ,There were lit tie affected by P and K. Leaf weight per plant and mean leaf area were correlated significantly and positively with LSL per plant, but thickness of largest leaf negatively. Specific leaf weight and leaf dry weight /leaf fresh weight ratio were correlated significantly and positively with LSL per leaf area, but mean leaf area negatively.
정기택,Jeong, Gi-Taek 한국화재보험협회 1991 방재기술 Vol.11 No.-
Together with the development of which being sharp scientific civilization everydays,it is the situation that cannot forecast and analyse with common sense due to being malformation of every kinds of disaster appearance. So, I suggest the theory of new protection and new system with most sensors, contrd box, and reconsideration and develop for it's assembly for the protection of such a catastrophe.