• Title/Summary/Keyword: Seed pelleting

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Germination and Physical Characteristics of Pelleted Sesame Seed with Different Materials (참깨종자의 과위화 재료에 따른 발아 및 물리적 특성)

  • 오명규;김종태;유숙종;고종철;박문수;이중용
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.42 no.5
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    • pp.497-502
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    • 1997
  • A seed pelleting technique was developed for easy handling of small sesame seeds (Chinbaeckkae) and for direct seeding in field. The mixture of pelleting material, binder(sodium alginate) and seeds were dropped in 100mM CaCl$_2$ solution. Charcoal was appeared as a best material among all to make pellets with the characters of hardness, breakdown, destruction rate and germination percentage. Zeolite formed the hardest pellet seeds among the materials and 1~3 seeds contained in a pellet on the treatment of 87g of sesame seeds mixed in 1$\ell$ CaCl$_2$ solution was estimated optimum rate of seed mixure with few appearance of seedless pellet. The moisture absorption rate was greater in the order of peat+charcoal > peat > charcoal > zeolite. Germination percentage of pelleted seeds with charcoal was the best and similar to that of common non-treated seeds. Germination percentage of pelleted seeds by sowing depth of exposing a quarter of pellet seeds on the surface of vermiculite germination test box and were 92% in charcoal treatment and was the best among all released materials.

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Effect of Germination on Alisma plantago by Pellet Coating Materials (펠렛코팅 재료가 택사종자의 발아에 미치는 영향)

  • Kwon, Byung-Sun;Jang, Young-Seok;Choi, Seung-Sun
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.50 no.spc1
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    • pp.239-241
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    • 2005
  • Alisma plantago seeds have some difficulties for mechanical sowing because of small, irregular and shrunken shapes. Thus it was intended to make seed pelleting for Alisma piantago seeds to solve these problem. The main object of this study was to find the best materials for Alisma plantago seeds pelleting. The most desirable shapes which provide a spherical and smooth surface of the pelleted seeds that enhance mechanical singling was made from the mixture of SDZ + DE + CA $0.4\%$. The pelleted seeds were easily broken after absorbing water and the germination rate of those was $95.3\%$ in lab.

Effects of Seed Inoculation Methods on the Nodulation and the Growth of Alfalfa Seeding (근류균의 종자 접종방안의 차이가 근류형성 및 Alfalfa 유묘의 생장에 미치는 영향)

  • 이광회;이호진
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.26 no.2
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    • pp.192-197
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    • 1981
  • Alfalfa (Medicago sativa L. cv. Luna) seeded in agar was inoculated with two strains of Rhizobium meliloti isolated from root nodules of alfalfa for assessment of nodulation. The seedling growth after six weeks was remarkably increased by adding each rhizobia strains into agar media and also by nitrate application (70ug N/ml), but there was no significant difference among them. Nodulations started one week after inoculation and increased its numbers and sizes as seedling grew. Therefore, the two strains isolated from alfalfa root were concluded to be effective strains. For determining seed inoculation method the same cultivar was inoculated with both rhizobia strains using different inoculation methods such as broth-vacuum, peat-adhesive, peat & lime pelleting. They were seeded in pots of river sand and supplied with culture solution excluded nitrogen. The peat & lime pelleting was recognized the best method in both of nodulation and seedling growth after eight weeks growth. There were significant correlations between the weight of nodules and the shoot or root dry weight of alfalfa in both rhizobia strains.

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Comparison of Inoculation Methods of Rhizobium to Alfalfa(Medicago sativa L.) (Alfalfa 근류균 접종방법에 따른 착생 근류균수의 변화)

  • Bin, Y.H.;Han, K.S.;Choe, Z.R.;Kim, S.H.
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.27 no.2
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    • pp.137-140
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    • 1982
  • Three levels of inoculum concentration from 10 to 30 percent, three kinds of adhesive materials, gum arabic, methyl cellulose and carboxy methyl cellulose, and five different pelleting materials including 4 different sources of lime and calcium carbonate were compared to investigate an optimum condition for seed inoculation by counting the number of viable rhizobium cells. For a peat-cultured Rhizobium inoculant, 10 per cent was found to be an optimum by showing 3.5 $\times$ 10$^9$ viable cells per seed. The highest number of viable cells were observed from gum arabic at 40 per cent, methyl cellulose at 5 per cent and carboxy methyl cellulose at 4 per cent. Among pelleting materials, a dental lime for investment originated from Ransom & Randolph Co. Ohio, U.S.A. resulted best as pelleting material.

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Effect of Viscosity of Binder and[ Storage Times of Pelleted Seed on Physical and Germination Characteristics of Tobacco Seeds. (종자피복용 binder 점도와 피복후 저장기간이 종자의 발아에 미치는 영향)

  • 신승구;백기현;이승철;목성균
    • Journal of the Korean Society of Tobacco Science
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    • v.22 no.1
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    • pp.45-50
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    • 2000
  • In order to improve the sowing practice, pelleted seeds of tobacco NC 82(Nicotiana tobacco L.) were manufactured in use of binders at the different levels of viscosity, and their physical properties according to pellet size and biological activity in seed germination were investigated while storage time elapsed. Proper range of the binder viscosity for the pellet formation was 20.3-37.2 m.pas. At the high level of viscosity(45.7 m.pas) took longer time to form the pellet and pelleting was not easy. The high binder viscosity and large pellet size revealed higher level in hardness of the pelleted tobacco seeds, which caused the longer splitting time of pellets in water. High level of binder viscosity(37.2 m.pas) in pelleted seeds led to decrease the biological activity of tobacco seed germination by the storage at 4 t over 30 days. But at the level of 20.3m.pas in binder viscosity, the germination of pelleted seeds was little affected by the long storage time to 120 days.

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