• 제목/요약/키워드: petiole

검색결과 392건 처리시간 0.021초

고려인삼의 근아휴면타파와 생육에 대한 Gibbrerllin과 Kinetin의 효과 (Effect of Gibberellin and Kinetin on Bud Dormancy Breaking and Growth of Korean Ginseng Root (Panax ginseng C.A. MEY.))

  • 박훈;김갑식;배효원
    • Journal of Ginseng Research
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    • 제3권2호
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    • pp.105-112
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    • 1979
  • Effect of gibberllin on the breaking of bud dormancy of root and growth of aerial parts were investigated under laboratory and field condition for the prolongation of shoot growth duration, shortening of fruit bearing age and the increase of root yield. Drop application of GA (0.5ml of 50ppm) on rhizome of one year old root broke bud dormancy better than by low temperature. Soaking for one hour of one year old roots which wintered in the field in GA (50-200ppm) greatly accelerated the emergence of new buds while kinetin was only effective at low level (50ppm). GA substantially increased stem length in early stage and petiole length later on while kinetin increased stem diameter. Under the field condition with polythylene film tunnel (PET) in early spring the soaking in GA (50ppm for 1 hour) of rhizome of 4 year old root with replanting and dropping GA (50ppm, 1ml) on rhizome without replanting brought earlier emergence (29days) in comparison with that in the usual field. PET alone caused 14 day-early emergence. GA increased the length of stem and petiole only in early stage and replanting decreased only petiole length in later stage. Soaking in GA with replanting caused the Pronounced decrease in peduncle length, percentage of (ruin set and dry weight of reproductive organ (fruits and peduncle). Dropping without replanting showed significant decrease only in dry weight of reproductive organ. Fruit maturing was 20 days earlier than in usual held with little difference between GA and PET. It is well expected that GA could be used for early emergence of bud, shortening of root dormancy period, thinning of fruit and higher root yield according to application amount and methods.

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북송(北宋) 이전 장부도(臟腑圖)와 명당장부도(明堂臟腑圖)에서 기원한 장부도(臟腑圖)에 나타난 간장(肝臟)의 형태요소의 비교 (Comparison of Form Factors of Liver in ZangFu Diagrams (臟腑圖) before Northern Song Ages and Ones Originated from MingTangZangFuTu (明堂臟腑圖))

  • 조학준
    • 한국의사학회지
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    • 제29권2호
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    • pp.17-33
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    • 2016
  • Objectives : The goal of this paper is to verify the hypothesis that the diagrams of liver from MingTangZangFuTu (明堂臟腑圖) were derived from ZangFu diagrams (臟腑圖) before northern Song Ages. Methods : The difference of form of liver was analyzed by means of 4 factors, e.g. shape, number, veins and a petiole of leafs, in diagrams from YanLuoZiNeiJingTu [煙蘿子內境圖], OuXiFanWuZangTu [歐希範五臟圖], CunZhenTu [存眞圖], MingTangZangFuTu and ones of liver from Taoism and MingTangZangFuTu. Results : Diagrams of whole body and liver from MingTangZangFuTu were first found in ZhenJiuJuYing (鍼灸聚英). Among them, lobed shape was first found in YanLuoZiNeiJingTu (in Wudai [五代]), a petiole in OuXiFanWuZangTu (northern Song Ages) and 7 leafs in WuZangLiuFuTu (五臟六腑圖. from Tang (唐) Ages to early northern Song Ages. unknown author.), one of references of UiBangNyuChwi (醫方類聚) (1455). However, veins of leafs were drawn in no diagrams. Conclusions : In diagrams of liver from MingTangZangFuTu, shape and a petiole of leafs were based on diagrams of ZangFu before northern Song Ages, but 7 leafs came from WuZangLiuFuTu. However, veins of leafs were not derived from any diagrams in same period.

Morphological Characteristics of Leaves, Trichomes and acorns in artificial hybrids of Quercus aliena ${\times}$ Q. mongolica var. crispula and Q. serrata ${\times}$ Q. mongolica var. crispula hybrids

  • Lee, Jeong-Ho;Kang, Kyu-Suk
    • 한국자원식물학회지
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    • 제22권3호
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    • pp.266-272
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    • 2009
  • Morphological characteristics of leaves, trichomes and acorns were investigated in 6-year-old artificial hybrids of Q. aliena ${\times}$ Q. mongolica var. crispula and Q. serrata ${\times}$ Q. mongolica var. crispula. Leaf shapes of Q. aliena ${\times}$ Q. mongolica var. crispula $F_{1}$ were obovate and resembled to that of Q. aliena. But several characters including the size of leaf and petiole and the shape of leaf base resembled to those of Q. mongolica var. crispula. In F1 hybrids, small stellate hairs distributed sparsely on the abaxial surface and their lay length was intermediate between both parents. There were no big differences on characters of nuts and cupules between both parents and $F_{1}$ hybrids. Leaf shapes of Q. serrata ${\times}$ Q. mongolica var. crispula $F_{1}$ were obovate-elliptic, and the leaf shape and leaf base and the length of petiole resembled to those of Q. mongolica var. crispula, but leaf size and serration resembled to those of Q. serrata. The number of serration in a leaf was intermediate between both parents. Small stellate hairs distributed sparsely and large single hairs were mixed on the reverse side of leaves. there were no big differences on the number and size of stellate hairs between $F_{1}$ hybrid and Q. serrata. It is able to distinguish $F_{1}$ hybrids from both parents by the size leaf size and shapes, leaf base and serration, petiole length and trichome type in the leaf.

Establishment of Genetic Transformation System and Introduction of MADS Box Gene in Hot Pepper (Capsicum annuum L.)

  • Lim, Hak-Tae;Zhao, Mei-Ai;Lian, Yu-Ji;Lee, Ji-Young;Eung-Jun park;Chun, Ik-Jo;Yu, Jae-Woong;Kim, Byung-Dong
    • Journal of Plant Biotechnology
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    • 제3권2호
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    • pp.89-94
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    • 2001
  • In vitro plant regeneration of inbred breeding line of hot pepper (Capsicum annuum L.) was established using leaf and petiole segments as explants. About 28 days old plants were excised and cultured on MS medium supplemented with TDZ and NAA or in combination with Zeatin. In all of the media compositions tested, combination of TDZ 0.5 mg/L, Zeatin 0.5 mg/L, and NAA 0.1 mg/L was found to be the best medium for shoot bud initiation. Young petiole was the most appropriate explant type for the plant regeneration as well as genetic transformation in hot pepper. In this study, HpMADS1 gene isolated from hot pepper was introduced using Agrobacterium-mediated transformation system. Based on the analysis of Southern blot and RT-PCR, HpMADS1 gene was integrated in the hot pepper genome. It has been known that floral organ development is controlled by a group of regulatory factors containing the MADS domain. Morphological characteristics in these transgenic plants, especially flowering habit, however, were not significantly altered, indicating this MADS gene, HpMADS1 may be non-functional in this case.

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시클라멘 (Cyclamen persicum Mill.)의 조직배양에 의한 식물체 재분화 (Plantlet Regeneration by Tissue Cultures of Cyclamen persicum Mill.)

  • 은종선;김영선;한상권
    • 식물조직배양학회지
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    • 제27권6호
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    • pp.479-484
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    • 2000
  • 시클라멘의 급속증식체계를 확립하기 위하여 발아 후 자엽이 전개된 어린 식물체의 괴경, 자엽, 엽병 등의 절편을 분리하여 절편부위별로 캘러스 및 기관분화에 미치는 생장조절제의 종류와 농도에 따른 식물체의 생장반응을 조사하였다. 절편부위별 캘러스 형성 및 shoot분화에 있어서 auxin류 단용처리의 경우 괴경절편의 NAA처리구에서 절편으로부터 캘러스 없이 shoot가 직접 발생하여 가장 양호하였으며, 1개의 절편체에서 10개 이상의 다아체가 분화되었다. 자엽이나 엽병절편은 캘러스만 유도되었고 대부분 치상당시의 상태로 shoot 발생에 auxin류의 처리는 부적합하였다. Cytokinin류 단용처리는 1.0 mg/L TDZ처리구에서 괴경의 경우 100% shoot 분화율을 보였고, 자엽절편 역시 배양 40일경부터 다수의 shoot가 발생되어 양호하였다. NAA와 BA혼용처리는 0.5 mg/L NAA와 0.5 mg/L BA 혼용첨가된 배지에서 괴경. 자엽, 엽병절편 모두 shoot 분화가 양호하였으며, auxin류와 cytokinin 류 단용처리보다 NAA와 BA 혼용처리가 모들 절편에서 양호한 결과를 보였다. 뿌리발생을 유도하기 위해 NAA와 IBA 단용처리에 shoot를 배양한 결과 배양 15일경부터 0.5 mg/L IBA처리구에서 뿌리가 발생되기 시작하여 배양 30일 후에는 Pot이식이 가능할 정도로 뿌리가 발생되어 가장 양호한 결과를 보였다.

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Cylindrocladium spathiphylli에 의한 스파티필럼 뿌리썩음병 (Petiole and Root Rot on Spathiphyllum Caused by Cylindrocladium spathiphylli in Korea)

  • 한경숙;박종한;한유경;정승룡
    • 식물병연구
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    • 제14권1호
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    • pp.64-67
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    • 2008
  • 2005년부터 2007년까지 경기도 고양시와 용인시의 스파티필럼 재배농가에서 주로 여름철 고온기(6월${\sim}$9월)에 스파티필럼의 지제부위와 뿌리 부분이 썩는 증상이 발생하였다. 이러한 병든 식물체의 병반으로부터 병원균을 분리하여 형태적 배양적 특징을 조사한 결과, 분생포자는 긴 막대모양의 양끝이 둥글고, 1-3개의 격막이 있으며 크기는 $67.5-95.0{\times}4.8-6.5\;{\mu}m$(평균 $82.0{\times}6.0\;{\mu}m$)였다. 병원균의 최적생육 온도는 $27^{\circ}C$였으며 병원성 시험결과 접종 5일만에 첫 병징이 조사되었다. 본 병원균은 병징과 균학적 특징을 조사한 결과, Cylindrocladium spathiphylli로 동정하였으며 스파티필럼 뿌리썩음병으로 명명하여 국내에 처음 보고한다.

한국과 중국 인삼자원들의 양적 형질 특성과 유전적 유연관계 분석 (Comparative Analysis of Genetic Relationships by Quantitative Characters and Their Characteristics in Germplasm of Panax ginseng C. A. Meyer Collected in Korea and China)

  • 송범헌;오문국;김도현;정종욱
    • 한국약용작물학회지
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    • 제25권6호
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    • pp.381-388
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    • 2017
  • Background: This study was conducted to acquire basic information on the phenotypic and genotypic characteristics of the germplasm of Panax ginseng C. A. Meyer collected from China and Korea, and identify the variations that can be utilized in ginseng breeding programs. Methods and Results: Quantitative parameters were evaluated, and used to compare and analyze on genetic polymorphisms in the germplasm. The genetic characteristics and classifications were compared and analyzed for each character. Stem length followed a normal frequency distribution ranging from 15.5 cm to 40.5 cm, with showing approximately 40% having a stem length of 20 - 30 mm. Stem diameters ranged from 2.7 mm to 11.3 mm. Stem number per plant ranged from 1 to 3; approximately 50% had a single stem, and 45% had two stems. A non-normal frequency distribution was observed for petiole number, with approximately 60% of the germplasm having 3 - 5 petioles. Petiole length exhibited a normal frequency distribution, raging from 4.5 to 10.6. Petiole angle in the germplasm ranged from $28^{\circ}$ to $89^{\circ}$ and seedstalk length ranged from 5.6 cm to 27.3 cm. Conclusions: The genetic polymorphisms identified by complete linkage clustering based on the quantitative characteristics of Panax ginseng C. A. Meyer collected from Korea and China were classified to 6 groups, namely I, II, III, IV, V, and VI with frequencies of 6.7%, 20.0%, 31.7%, 8.3%, 6.7%, and 26.7%, respectively.

시클라멘(Cyclamen Persicum Mill.)의 자엽과 엽병배양에 의한 식물체 재분화 (Plantlet Regeneration Cotyledon and Petiole Cultures of Cyclamen Persicum Mill)

  • 은종선;고정애;김영선
    • 식물조직배양학회지
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    • 제22권4호
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    • pp.212-216
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    • 1995
  • 조직배양을 이용하여 시클라멘의 급속증식체계를 확립하기 위한 기초실험으로 자엽과 엽병을 auxin류와 cytokinin류가 혼용처리된 MS배지에 배양한 후 캘러스 발생 및 기관 재분화에 미치는 치상절편, 부위별, 생장조절제의 효과를 조사하였다. 절편부위별 효과는 자엽조직이 엽병조직보다 캘러스 및 캘러스로부터 shoot 분화에 좋은 반응을 보였다. 2,4-D와 kinetin 혼용처리구에서 자엽은 전혀 반응이 없었고 엽병절편에서는 2,4-D와 kinetin이 1.0 mg/L씩 혼용배지에서만 캘러스로부터 shoot가 재분화되었다. NAA와 BA 혼용배지의 경우 자엽절편에서는 모든 배지에서 캘러스가 유도되었으며 shoot 재분화는 0.2 mg/L NAA와 0.5 mg/L BA 혼용 배지에서 가장 양호하였고, 엽병조직은 0.2mg/L NAA와 2.0 mg/L BA 혼용배지에서 다수의 shoot가 재분화되어 가장 효과적이었다. Shoot로부터 발근에 적합한 NAA와 IAA의 효과를 조사하였던 바 NAA가 IAA보다 뿌리발생에 양호하였고 특히 1.0 mg/L NAA에서 다수의 뿌리가 발생되어 효과적이었다.

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Ecological Niche Overlap and Competition between Quercus mongolica and Quercus dentata Under Soil Water Gradient

  • Yeon-ok, Seo;Se-Hee, Kim;Eui-Joo, Kim;Yoon-Seo, Kim;Kyeong-Mi, Cho;Jae-Hoon, Park;Ji-Won, Park;JungMin, Lee;Jin Hee, Park;Byoung-Ki, Choi;Young-Han, You
    • Journal of Forest and Environmental Science
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    • 제38권4호
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    • pp.229-238
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    • 2022
  • Q. mongolica and Q. dentata are representative species of deciduous forest communities in Korea and are known to be relatively resistant to soil drying condition among Korean oaks. This study attempted to elucidate the degree of competition and ecological niche characteristics of the two species by comparing the ecological responses of the two species according to soil moisture. Competition between Q. mongolica and Q. dentata was shown to be more intense under the conditions where moisture content was low than under the conditions where moisture content was high. As for the ecological niche overlaps of the two species for soil moisture, the structural traits of plant such as stem diameter overlapped the most, the traits of biomass such as petiole weight overlapped the least, and photosynthetic organ-related traits such as leaf width and length overlapped intermediately. When looking at the competition for soil moisture between the two species, it can be seen that Q. mongolica won in nine traits (leaf width length, leaf lamina length, leaf lamina weight, leaf petiole weight, leaf area, leaves weight, shoot weight, root weight, and plant weight) and Q. dentata won in the remaining seven traits (leaf petiole length, leaves number, stem length, stem diameter, stem weight, shoot length, and root length). Competition between the two species for the moisture environment of the soil was shown to be intense under the conditions where moisture content was low. The degree of competition between Q. dentata and Q. mongolica for soil moisture is high under the conditions where soil moisture content is low, and it is judged that Q. mongolica is more competitive for soil moisture than Q. dentata.

Breeding of 'Jinmani' Cultivar of Gomchwi with Disease Resistance, High Quality and Yield

  • Jong Taek Suh;Ki Deog Kim;Jong Nam Lee
    • 한국자원식물학회:학술대회논문집
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    • 한국자원식물학회 2021년도 춘계학술대회
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    • pp.18-18
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    • 2021
  • Gomchwi using stuffed leaves is many cultivated for 'Gondalbi(Ligularia stenocephala)' among Gomchwi species. 'Gondalbi' species like to be cultivation on farm because of low the incense and the bitter taste, and high yield. But 'Gondalbi' caused to curtail yield that susceptibility of powdery mildew disease and shriveling and death of plant on summer season. To solve this problems, we crossed a Gomchwi and 'Handeari-gomchwi' to have resistance of powdery mildew disease and high yield. A new Gomchwi cultivar 'Jinmani' was bred by crossing between Gomchwi (Ligularia fischeri (Ledeb.) Turcz.) and Handaeri-gomchwi (Ligularia fischeri var. spiciformis Nakai). The selection and investigation of growth and yield characteristics were conducted from 2007 to 2020 in field and greenhouse of Highland Agriculture Research Institute, NICS, Rural Development Administration. The color of petiole ear was purple. trichome of petiole and leaf back non-existed, and luster of leaf back existed. Density of leaf vein was 4 degree among 1-5 degree in a newly developed cultivar 'Jinmani'. Plant height, leaf length, leaf width and petiole length were 55.7, 21.8, 22.2, and 33.9 cm, respectively in the 2nd year of growth characteristics. Plant size was similar with that of 'Gommany'. Bolting and flowering time were Aug. 5 and Sept. 5, respectively, and Bolting and flowering time of 'Gommany' showed similar to Aug. 8 and Sept. 1, respectively. 'Jinmani' showed higher number of leaves (202 ea.) per plant compared to 'Gommany' (159 ea.). Furthermore, yield was 67.9% higher in 'Jinmani' (2,569 g/plant) than in 'Gommany' (1,530 g/plant). 'Jinmani' showed lower leaf thickness (0.66mm) than 'Gommany' (0.69 mm), and consequently showed more hardness in leaf characteristics (25.1 kg/2) compared to 'Gommany' (24.3kg/cm2). 'Jinmani' showed similar strong resistance compared to 'Gommany' in the susceptibility of powdery mildew disease.

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