• 제목/요약/키워드: Leaf distribution of tobacco

검색결과 21건 처리시간 0.027초

Perique엽의 경종 및 화학적 특성 (Agronomic Characteristics and Chemical Contents of Perique Tobacco Leaves)

  • 한상빈;반유선
    • 한국연초학회지
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    • 제3권1호
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    • pp.66-74
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    • 1981
  • This study was conducted to investigate the interaction between chemical compositions and agronomic characteristics of perique tobacco leaf. At the topping stage, the thickness of leaf was positively correlated with total sugar($\textrm{0.975}^{**}$), reducing sugar($\textrm{0.975}^{**}$), alkaloid($\textrm{0.518}^{*}$) and petroleum ether extract($\textrm{0.801}^{**}$) contents. The length of upper leaf was negatively correlated with its chemical contents. Total sugar contents of the harvested leaf showed a sigmoid pattern of distribution along the leaf stalk positions.

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국내 원료잎담배의 착엽위치 및 가공등급에 따른 연기성분 변화 (Changes of Smoke Components with Stalk Position and Grade of Korean Leaf Tobacco)

  • 황건중;이문수
    • 한국연초학회지
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    • 제24권1호
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    • pp.38-45
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    • 2002
  • This study was conducted to determine the smoke component concentration and the smoke distribution in the cambridge filter pad and cigarette filter with stalk position and grade of Korean leaf tobaccos. 12 grades of flue-cured and burley leaf tobaccos which were taken from the Kim-cheon and Ock-cheon leaf tobacco processing factory were used for this study. Six kinds of smoke components such as tar, nicotine, water, carbon monoxide(CO), carbon dioxide($CO_2$) puff No. collected in the cambridge filter pad and cigarette filter were analyzed. Also, nicotine/tar, CO/tar ratio were calculated from the analytical data. Puff no., CO, and $CO_2$ concentration of flue-cured and burley tobacco leaves at high stalk position were higher than those of low stalk position, and these components were increased in high grade of leaf tobacco. Compared with flue-cured tobacco, burley tobacco showed a little values of puff no., nicotine, and tar concentration. The pH range of burley tobaccos was broader than that of flue-cured tobaccos, and the ammonia concentration of burley tobaccos was significantly higher than that of flue-cured tobaccos. The pH value and ammonia concentration of burley tobaccos were decreased as stalk position of leaf tobaccos decreased. The distribution of smoke components collected in the cambridge filter pad and cigarette filter was different with a different grade and stalk position of tobacco leaves. In high stalk position of tobacco leaves, the portion of smoke components collected in the cambridge filter pad was also increased. The average nicotine, water, and tar removal efficiency by a cigarette filter in a flue-cured tobacco were 37%, 64%, and 48%, respectively. Compared with flue-cured tobaccos, smoke components of burley tobaccos had high nicotine and low water removal efficiency by a cigarette filter. The average ratio of nicotine/tar and CO/tar of flue-cured tobaccos and burley tobaccos were 0.097, 1.22, 0.094, and 0.97, in order. Nicotine/tar ratio was decreased and CO/tar ratio was increased in low stalk position.

버어리종 담배의 염소에 관한 연구 IV. 염소시용시기 및 시용량이 담배의 염소흡수 및 엽중분포에 미치는 영향 (STUDIES ON THE CHLORINE OF BURLEY TOBACCO PLANTS. IV. THE EFFECTS OF APPLICATION TIME AND RATE OF CHLORINE ON THE CHLORINE ABSORPTION AND DISTRIBUTION IN EACH STALK POSITION OF THE PLANTS)

  • 김상범;배길관
    • 한국연초학회지
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    • 제9권2호
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    • pp.25-35
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    • 1987
  • Effects of application time And rate of chlorine on the chlorine absorption and distribution at different stalk positions of the plants were Investigated in burley tobacco grown under the pot condition. Treatment consisted of 6 application times (from 2 weeks before transplanting to 8 weeks after transplanting with 2 weeks' interval) and 2 application rates (2g and 4g-KCl/pot) by 6X2 factorial experimental design. The tobacco plants took up the chlorine rapidly just after chlorine application, and the chlorine content of leaf was increased proportionally to the rate of chlorine application. The chlorine was accumulated when much in lower leaves when chlorine was applied early, while the chlorine accumulated much in upper leaves when chlorine was applied late. The chlorine content of leaf was negatively correlated to the degree of brightness, red color and yellow color of cured leaf. Significant Increases In cured leaf ratio, leaf thickness, leaf weight and weight Per unit leaf area of harvested leaf were obtained with increased chlorine application. When the chlorine was applied early, the leaf weight showed Increasing tendency.

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Burley종 담배의 품종별 재식밀도 및 시비량에 따른 주요 형질의 변화 제2보. 시비량에 따른 초형 변화 (Variation of Agronomic Characters in Burley Tobacco Cultivars according to Plant Density and Fertilizer Levels II. The Effect of Fertilizer Level on Plant Type)

  • 구한서
    • 한국연초학회지
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    • 제16권1호
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    • pp.43-52
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    • 1994
  • To investigate the factors of the improvement of cultivation methods according to the plant type, three Burley tobacco cultivars were done. Experiments on the variability of plant type and factors representing the productivity and quality of the cultivar were subsequently carried out in relation to different fertilizer levels. Results are summarized as below. Use of more fertilizer resulted in higher plant height and longer leaf length but smaller mean leaf inclination(MLI). The horizontal leaf area distribution became greater in parts distal to the stem and the vertical leaf area distribution became greater in lower half than in upper half as the amount of fertilizer applied was increased. Br. 49 was the largest but Br. 21 and NTN 77 were similar with respect to both CGR and NAR. The yield was greater in larger MLI cultivars. These three characteristics became greater when the tobacco were heavier in the cultivars of larger MLI and increased with higher amount of fertilizer. Harvest index became greater as the amount of fertilizer decreased but not significantly differ among the cultivars. Total nitrogen content and nitrate - form nitrogen content were greater, more amount of fertilizer, and larger MLI cultivar plots. Total nitrogen content was higher in upper leaves. The filling power of tobacco leaves decreased but combustibility of leaves showed not significant trend as fertilizer application level increased.

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버어리종 담배의 염소에 관한 연구 I. 버어리종 담배산지의 토양과 잎담배의 염소함량 실태 (STUDIES ON THE CHLORINE OF BURLEY TOBACCO PLANTS I. CHLORINE CONTENT OF THE SOIL AND CURED LEAF IN BURLEY TOBACCO GROWING AREA)

  • 김상범;배길관
    • 한국연초학회지
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    • 제8권1호
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    • pp.49-56
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    • 1986
  • To obtain the information of low chlorine leaf production, the chlorine content of the soil and cured leaf in Burley tobacco growing area was investigated. The results obtained are as follows. 1. The chlorine concentration in soil at transplanting time in Kwang-ju growing area was higher than in Jeon-ju(1983), and paddy field sell showed higher concentration of chlorine than upland field in Jeon-ju(1984). The chlorine concentration in soil was different between years, locations, and cultivated land (paddy field and upland field), but the concentration, on the whole, was under the levels that might effect the leaf quality. 2. The chlorine concentration In soil was highest around todays after transplanting, and after harvesting, the concentration decreased to half of transplanting time. 3. The distribution of chlorine through the parts of tobacco plant showed remarkable difference between years, locations, cultivated land and growing stages. 4. There was significant positive correlation between chlorine concentration in top soil and chlorine content of cured leaf. 5. Chlorine content of cured leaf in Kwang-ju area(1.79%) was higher than that of Jeon-ju area(O.79%), relatively. 6. It was considered that the accumulation of salt from the sea by sea. wind did not main factor of high leaf chlorine content in seaside district.

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Burley종 담배의 품종별 재식밀도 및 시비량에 따른 주요 형질의 변화 제1 보. 재식밀도에 따른 초형 변화 (Variation of Agronomic Characters in Burley Tobacco Cultivars according to Plant Density and Fertilizer Levels I. The Effect of Plant Density on Plant Type)

  • 구한서
    • 한국연초학회지
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    • 제16권1호
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    • pp.34-42
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    • 1994
  • Experiments on the variability of plant type and factors representing the productivity and quality of the cultivars were subsequently carried out in relation to different plant density. Results are summarized as below. The higher was the plant density, the greater was the plant height and mean leaf inclination(MLI). As the plant density increased, the horizontal leaf area distribution became greater in proximal to the stem in NTN 77 and Br.49 but evenly in distal part in Br.21. Meanwhile, in terms of vertical leaf area distribution, it was decreased much more in middle and lower leaves than in upper in NTN 77 and Br.49 although it steadily decreased in any part of the plant in Br.21. Br.49 was the largest but Br.21 and NTN 77 were similar with respect to both CGR and NAR. The yield was greater in larger MLI cultivars(NTN 77>Br.49>Br.21). These three characteristics became greater when the tobacco were planted more densely in the field. Dry leaf weight and dry matter weight per plant were heavier in the larger MLI and increased with lower plant density. Total nitrogen content was greater in lower plant density and larger MLI cultivar. The plant density increases filling power seems to be enhanced regardless to the plant type. There was no discernible tendency on combustibility according to the plant density or plant type.

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육묘포트 깊이가 담배의 뿌리발달 및 분포에 미치는 영향 (Effect of Pot Depth on Root Development and Distribution during Seedling Growing Period in Tobacco.)

  • 이상각;심상인;강병화;이학수;석영선
    • 한국연초학회지
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    • 제19권1호
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    • pp.18-23
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    • 1997
  • The study was carried out to clarify reasonable production of healthy seedling, optimal Pot depth, and appropriate transplanting time, which can be deduced from understanding of seedling quality. Seedling quality results from growth of root and shoot, morphology and distribution of root system under influence of Pot depth during seedling growing period. Stem height, shoot dry weight, leaf area and leaf number were increased in proportion to depth of pots. Growth of shoot and root during seedling growing period showed the most dramatic development between 20th and 25th day after temporary planting. Root number increased as pot depth decrease and total root length and dry weight increased as pot depth increase. In 5cm pot, relative multiplication rate was higher and mean extension rate was lower than other depth of Pot. The limitation of pot volume in which rhizosphere was located enhance the development of roots of second and third order. At 20th days after temporary Planting root distribution was relatively uniform in length and development of adventitious root on stem base was poor as Pot depth decreased.

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광량 및 광질이 고려인삼의 생육과 품질에 미치는 영향 II. 광량과 재식밀도와의 관계 (Effects of Light Intensity and Quality on the Growth and Quality of Korean Ginseng (Panax ginseng C.A. Meyer) II. Relationship between Light Intensity and Planting Density)

  • 천성기;목성균;이성식
    • Journal of Ginseng Research
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    • 제15권1호
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    • pp.31-35
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    • 1991
  • In order to know the optimum planting density under shading structures at different light intensity, We investigated the growth status, distribution of ginseng leaf area, correlation between planting density and root weight per plant and yield, correlation between leaf area index and root weight per plant and yield. According to the increase of planting density the leaf area per plant was decreased, but leaf area index (L.A.I) was increased. Ginseng leaf population at different lines under common straw shading were distributed mainly in frost lines but polyethylene net shading at 10fo light intensity were distributed equally in all lines. Optimum planting density in common straw shading at 5% light intensity was 55 plant per tan (90 cmX180 cm) and polyethylene net shading 81 10% light intensity was 60 plant per tan, in consideration of root weight and yield. Optimum leaf area index was 2.4 under common straw shading at 5% light intensity but was 2.7 under polyethylene net shading at 10% light intensity.

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Orient종 잎담배의 이면교잡에 의한 양적 형질의 유전연구 II. 분산분석과 유전자분포 상태 (The Analysis of Inheritance of Quantitative characters with Oriental Tobacco Varieties (Nicotiana tabacum L.) in Diallel Cross. II. Gene Distribution and Analysis of Variance for each character in $F_1$ Generation.)

  • 정석훈;황주광;손세호
    • 한국연초학회지
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    • 제4권1호
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    • pp.15-20
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    • 1982
  • This experiment was carried out to investigate the degrees and directions of dominance, and gene distributions by analysing diallel crosses of oriental varieties. The analysis of Wr-Vr indicated non-allelic gene interaction for days to (lowering and number of leaves. Five Plant characteristics showed different degrees of dominance : incomplete dominance for Plant height and leaf shape, over dominance for , wield and sugar, and complete dominance for nicotine. It was shown that additive genetic variance was predominant for plant height, leaf shape, and total sugar. More number of dominant genes were present in Kavala and canthi for Plant height; Basma, Samsun and Izmir for leaf shape ; and Basma and Samsun (or nicotine. Their directions of dominance were tall height, narrow leaves, and low nicotine, respectively.

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감자나방 (Phthorimaea opercullella Zeller)의 생분포와 피해에 관한 조사 (The Potato Tuber Moth (Phthorimaea Operculella Zeller ) Distribution and Damage to Tobacco Plants)

  • 손준수
    • 한국연초학회지
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    • 제1권1호
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    • pp.51-55
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    • 1979
  • 煙草栽培地를 중심으로 감자나방 (Phthorimaea operculella Zeller )의 發生分布와 被害狀況을 調査한 결과 현재 慶北의 盈德, 達城 全南의 城 珍島地域 一圓에 分布되었고 煙草의 被害株率은 50%에 달하였으며 珍島地域이 767%로서 가장 심하였다. 葉位別로는 基部로 부터 3葉까지가 82.4%의 높은 被害株率을 보이며 下葉일수록피해가 심한 경향이였으며 葉當 1 ∼3마리 棲息加害하는 葉이 87.9%로 가장 많고 葉當 11마리 以上 棲息하는 葉도 있었다.

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