• Title/Summary/Keyword: grafting method

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Studies on Juvenile Tissue Grafting of Some Special-use-Trees (II) An Experiment on Inverted Radicle Grafting of Crop-Tree-Species (특용수종의 유대접목에 관한 연구 (II) 유실수종의 임면지유근역위접목 및 유근역위아접에 관하여(예보))

  • 박규수
    • Journal of Plant Biology
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    • v.11 no.3
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    • pp.8-17
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    • 1968
  • A grafting method, cleft grafting of ordinary dormant scion into an inverted radicle of a germinated seed was tested with good success for chestnut as well as for walnut trees. It was seen that verticilate roots which were produced from the cut and of radicle after grafting made a complete union with scion and made healthy development to produce a successful graft. The radicle before secondary rootlets emerged from its rooting zone was proved to be best stock for inverted radicle grafting. The dormant but was also used for grafting scion with success in this method. Though green house grafting gives higher survival, field grafting was also feasible by this method. Those early growing geason after grafting, the later development of root system and the shoot of the graft were to be studied in the future.

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Effect of Different Budding Methods and Times on Grafting Success of Walnut

  • Nosrati, Zia;Khadivi-Khub, Abdollah
    • Horticultural Science & Technology
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    • v.32 no.6
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    • pp.788-793
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    • 2014
  • Vegetative propagation of walnut is difficult compared with that of other fruit and nut species. The present study assessed three methods of grafting (patch, shield, and chip) at various periods of walnut growth and with different timings of grafting in walnut. Early May was the best time for grafting, at which time the highest success rate was obtained by the patch method (96%), followed by chip-budding (75%), while shield-grafting showed the lowest efficiency (10%). Patch-grafting was also successful (75-80%) in early August and moderately successful in mid-June (51-55%), while the shield and chip methods had no success during these two times (0.00%). Patch-grafting was more efficient and also induced better callus formation and scion growth than the other two methods. The genotypes used did not affect grafting efficiency. The best results were obtained by patch-budding in both tested genotypes. The present findings show the potential value of patch-grafting in early May as a propagation method for walnut for establishment of guidelines for propagation.

Hexahedral Mesh Generation by Sweeping and Grafting Algorithm (스위핑과 접목 알고리즘은 이용한 육면체 요소망의 생성)

  • 권기연;채수원
    • Korean Journal of Computational Design and Engineering
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    • v.6 no.2
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    • pp.125-132
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    • 2001
  • An algorithm for generating all hexahedral meshes for three dimensional objects has been presented. This algorithm is based on the sweeping and the grafting method. In sweeping process internal nodes generating method has been modified by employing the distances between nodes on connecting surfaces and on source surfaces. In addition to the sweeping processes grafting algorithm is also modified to obtain more effective meshes by refining elements near grafting surfaces. With this method two and a half dimensional hexahedral meshes for three dimensional objects can be generated effectively. Sample meshes are constructed to demonstrate the mesh generating capability of the proposed algorithm.

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Mechanism of a grafting machine using the insertion method (삽접법을 이용한 기계접목 메카니즘 연구)

  • Park, Kyu-Sik;Lee, Ki-Myung;Kim, Joo-Yup
    • Current Research on Agriculture and Life Sciences
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    • v.15
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    • pp.115-122
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    • 1997
  • Grafting is an important skill for the stable supply and production of high quality. However, the shortage of skillful labor has become great difficulty for a mass production of grafting-seedling. In this study, a suitable mechanism for a grafting machine was developed. The following summarize the results of this study: 1. An insertion method was selected for mechanism of the grafting machine without bonding agent, clip, pin. This insertion-grafting method can be applicable to general vegetables and a mass production system. In addition to, this method is suitable for developing the grafting mechanism. 2. Growing point was removed while remaining both cotyledons on rootstock. The productivity of this system was five fold greater than the one of an experienced labor. 3. The rootstock processing was placed on left and scion processing unit was placed on right of the system, then processed rootstock and scion graft by rotating $180^{\circ}$. 4. The efficiency tests on mechanical grafting rate showed 98%.

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Effective grafting method for Korean jujube nursery tree

  • Park, Hee-Seung;Kim, Yong-Koo;Chung, Kyu-Hwan;Ahn, Young-Hee
    • Journal of Environmental Science International
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    • v.12 no.2
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    • pp.119-124
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    • 2003
  • An effective grafting method for jujube nursery trees was developed to shorten the operation time, improve the percentage of "takes" and shoot emergence, and form the better graft union. Out of 7 grafting methods the splice, modified scion Ono graft and the bark graft showed relatively short operation time during the grafting operation comparing to the modified rootstock Ono graft or the chip budding. Among these methods, the bark graft demonstrated 100% "takes", but the modified scion Ono graft or the standard Ono graft showed 58.3% of "takes". The percentages of the vegetative shoot emergence were 100% fir the bark graft, 70% f3r the modified scion Ono graft and lower emergence percent for the rest grafting methods. The union tissue formation for the modified scion Ono graft, the bark graft, or the whip-and-tongue graft was significantly larger than the standard Ono graft or the splice graft. In a close examination of the cross sectional areas of the graft union formation through the microscope, the bark graft was superior, the standard Ono graft was inferior and rest of the grafting methods were intermediate.ing methods were intermediate.

상악골에서 Veneer 골이식과 동반된 즉시 임프란트 매식

  • Jeong, Jong-Cheol;Choe, Jae-Seon;Kim, Ho-Seong;Seong, Dae-Gyeong;Lee, Gye-Hyeok;Choe, Jae-Uk;Kim, Yeong-Hun
    • The Journal of the Korean dental association
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    • v.37 no.1 s.356
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    • pp.62-68
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    • 1999
  • Patients who present with severe maxillary bone loss Secondary to trauma or resorption provide a unique diagnosis and difficulty in implant installation. To solve this problem, various bone grafting methods and graft materials can be used in these compromised cases. But for the patients required wide reconstruction, autogenous iliac bone has been used widely because of easy harvesting of much corticocancellous bone. Usually, implant installations are performed 6-12 months later after grafting. but this method necessary long treatment period and additional surgery. To avoid this disadvantages, bone grafting with immediate implant installations are frequently used. But special care is necessary to prevent postoperative complication in this method. We present three cases of veneer grafting with immediate implant installation. These patients had a knife-edge shaped alveolar bone due to labial alveolar bone loss. We reconstructed this alveolar bone with veneer grafting with iliac bone and performed immediate implant installation. There was no complications during healing periods in these three cases. Six months later, we found good survival of grafting bone and osseointegration of these implants, so we could perform prosthetic treatment successfully.

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HANDLING MECHANISM IN GRAFTING ROBOT

  • Kajikawa, T.;Nishiura, Y.
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 2000.11b
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    • pp.313-317
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    • 2000
  • In this research, a grafting robot with plug in method is used. Plug in method is a method that uses a tapered axis for scion and a tapered hole for stock as processing style of conjugation parts. In the case of handling a grafting seedling, gripping a stem is doing with simple mechanisms of devising to reduce damages to stems. For example, providing cushions between gripper and stem, and fitting a gripper to a stem. Both scions and stocks need cutting, but there is bigger influence for scions than stocks, so problems of cutting scions and special qualities of grippers are necessary to investigate.

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Studies on the Grafting of the Magnolia grandiflora L. (III) (태산목(泰山木)의 접목(接木)에 관(關)한 연구(硏究)(제(第)III보(報)))

  • Lee, Jyung Seuk
    • Journal of Korean Society of Forest Science
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    • v.26 no.1
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    • pp.49-55
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    • 1975
  • This study was carried out to find out the proper method of grafting of Magnolia grandiflora L. Magnolia kobus DC. was used as stocks and the modified veneer grafting method in which a flap was attached to the cut surface of scion was adopted. And also the environment of the grafting beds was controlled for giving optimum humidity (90-100%) and temperature ($20-25^{\circ}C$). The results are summarized as follows: 1. Two year-old seedlings of M. kobus were best as stocks for grafting of M. gantiflora. 2. The modified veneer grafting which brought the successful result of 43 to 89.5 percent found to be very efficient method. 3. The environmental control made of vinyl tunnel and screen (lath) was very effective to attain to the excellent result of 89 percent. 4. For scions, one to two year-old branches with well developed winter buds collected just before the time of grafting gave the best results. 5. The optimum season for grafting in Kwangju districts was 15 to 20, April.

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Preparation of Permselective Membrane by Mean of a Radiation-Induced Grafting (방사선 그래프트에 의한 반투막 제조연구)

  • Young Kun Kong;Hoon Seun Chang;Chong Kwang Lee;Jae Ho Choi
    • Nuclear Engineering and Technology
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    • v.15 no.1
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    • pp.1-10
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    • 1983
  • By controlling both the means of grafting and the cast-solution components, no degradation and dimensional change of radiation-induced graft polymerization were found. The electric resistance of styrene-cellulose acetate grafts increases with increasing styrene content, while those for the hydrophilic monomers show no marked effect. In comparison with the grafted cellulose acetate membrane by simultaneous irradiation method, the appearance of the grafted membrane by post-polymerization method was not markedly changed irrespective of the percent of grafting and radiation dose of electron beam or ${\gamma}$-ray. The combination of crosslinking agents such as divinyl benzene (OB) or trimethyl propane triacrylate (TMPT) in the VP:St:BPO system leads to gradual increase of the percent of grafting. The activation energy for grafting of St:VP:BPO solution onto cellulose acetate membrane was determined to be about 21.8 Kcal/mole over the range of 55$^{\circ}$-8$0^{\circ}C$. The initial rate of grafting (in %/hr) is proportional to the power 0.76 for dose intensities.

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Effect of Grafting Methods on Plug Seedling Quality, Growth after Transplanting and Yield of Oriental Melon (Cucumis melo L. var. makuwa Mak.) (참외 접목방법이 플러그 묘 소질과 정식 후 생육 및 수량에 미치는 영향)

  • Bae Su Gon;Kim Jwoo Hwan;Do Han Woo;Shin Yong Seub;Seo Yong Jin
    • Journal of Bio-Environment Control
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    • v.14 no.1
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    • pp.56-62
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    • 2005
  • This study was conducted to investigate the effect of grafting methods on plug seedling quality, growth after transplanting, and yield of oriental melon that those seedlings were raised in the 32 hole plug tray for protected cultivation. Number of leaf and leaf area in approach grafting were higher until 15 days after grafting but lower on 20 days after grafting. Plant height, stem diameter and content of chlorophyll were nearly the same of each grafting methods on 20 days after grafting. Growth of top part, that is, plant height, leaf number, and leaf area on root removed single cotyledon ordinary splice grafting was the highest among the grafting methods. In the underground part, dry weight of root was high and T/R ratio was the lowest. Seedling quality of root removed single cotyledon ordinary splice grafting was the highest among grafting methods before transplanting. Plant height, number of leaf, leaf area and dry weight of root removed single cotyledon ordinary splice grafting in the growth of field were the highest on 30 days after grafting among grafting methods and days required for first flowering was also shorter, 38.4 days among grafting methods. But Fruit weight, content of soluble solids, fruit hardness, and color characteristics in fruit quality were insignificant among each grafting methods. Consequently, grafting methods influenced on the seedling quality, of oriental melon early growth after transplanting and yields. It was concluded that root removed single cotyledon ordinary splice grafting was the best methods in present study. It will be needed to convert grafting methods. Thus new grafting method should be applied.