• 제목/요약/키워드: seed growing

검색결과 395건 처리시간 0.025초

유색콩 수집종의 안토시아닌 함량 변이 (Variation of Anthocyanin Content in Color-Soybean Collections)

  • 정찬식;박용진;권일찬;서형수
    • 한국작물학회지
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    • 제41권3호
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    • pp.302-307
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    • 1996
  • 1. 종피에 함유된 anthocyanin은 1% HCl-Methanol 용액에 3회 추출하는 것이 가장 효과적이었고, anthocyanin함량은 수집계통별로 매우 다양하였으며, 종피 색깔별로는 흑색계통의 anthocyanin함량이 평균 15.07$ extperthousand$로 가장 높았던 반면 갈색 아주까리형 계통이 0.31$\textperthousand$로 가장 낮았다. 2. 수집 흑색종피 계통중 종피내 자엽색깔별 평균 anthocyanin은 대체로 녹색자엽을 가진 계통이 황색 자엽계통에 비해 높았고, 성숙기가 늦은 계통일수록 anthocyanln이 많이 축적되는 경향을 나타내었으며, 100립중, 개화일수 및 생육일수가 anthocyanin함량에 정의 상관을 보인 반면 결실일수와는 고도의 부의 상관을 나타내었다. 3. 수집 흑색종피 계통을 성숙기군별로 분류한 결과 대부분이 V 및 Ⅵ군에 속하였고 생육일수가 비교적 긴 Ⅵ군이 V군에 비해 anthocyanin함량이 상대적으로 높은 경향이었으며, 파종기별 anthocyanin함량은 5월 15일 에 파종하였을 경우 가장 높았다.

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Long-Term Study of Weather Effects on Soybean Seed Composition

  • Bennett John O.;Krishnan Hari B.
    • 한국작물학회지
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    • 제50권1호
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    • pp.32-38
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    • 2005
  • A long-term study initiated in 1989 at San-born Field, Columbia, Missouri, was designed to evaluate the affect of environmental factors, nitrogen application, and crop rotation on soybean (Glycine max [L.] Merr.) seed composition. Soybeans were grown as part of a four- year rotation which included corn (Zea maize L.), wheat (Triticum aestivum L.), and red clover (Trifolium pratense L.). Results from soil tests made prior to initiation of the study and subsequently every five years, were used to calculate application rates of nitrogen, phosphorus, and potassium necessary for target yield of pursuant crops. In the experimental design, nitrogen was applied to one-half of the plot on which the non-leguminous crop, either corn or wheat was grown. Analysis of soybean seed by near infrared reflectance spectroscopy collected over an 11-year period revealed a linear increase in protein and decrease in oil content. Application of nitrogen fertilizer to non-leguminous crops did not have an apparent effect on total protein or oil content of subsequent soybean crop. Analysis of soybean seed proteins by sodium dodecyl sulfate polyacrylamide gel electrophoresis in conjunction with computer­assisted densitometry revealed subtle changes in the accumulation of seed proteins. Immunoblot analysis using antibodies raised against the $\beta-subunit$ of $\beta-conglycinin$ showed a gradual increase in the accumulation of the 7S components during successive years of the experiment. A linear increase in temperature and decrease in rainfall was observed from the onset of data· collection. Higher temperatures during the growing season have been linked to increased protein and diminished oil content of soybean, thus changes observed in this study are possibly related to climatic conditions. However, crop rotation and subsequent changes in soil ecology may contribute to these observed changes in the seed composition.

Occurrence of Two Tobamovirus Diseases in Cucurbits and Control Measures in Korea

  • Park, Gug-Seoun
    • The Plant Pathology Journal
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    • 제17권5호
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    • pp.243-248
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    • 2001
  • Two Tobamoviruses, Cucumber green mottle mosaic virus (CGMMV) and Zucchini green mottle mosaic virus (ZGMMV), occurred in Korea in 463 ha in 1998, 33.9 ha in 1999, and 44.2 ha in 2000. CGMMV was detected in watermelon, cucumber, oriental melon, and melon, whereas ZGMMV was mainly detected in zucchini squash. Thirty-six CGMMV isolates wee classified into three types by analysis of single strand cDNA conformational polymorphism (SSCP) of the coat protein gene. In a comparison of serological relationships among CGMMV, ZGMMV, and Kyuri green mottle mosaic virus (KGMMV), the three tobamoviruses specifically reacted with each homologous antibody in the double-antibody sandwich enzyme-linked immunosorbent assay and rapid imunofilter paper assay (RIPA), although ZGMMV and KGMMV were slightly biologcially similar. In a survey of the three tobamoviruses in cucurbitgrowing field in Korea by RIPA, CGMMV and ZGMMV were detected but KGMMV was not found in commercially growing cucurbit crops so far. Seed contamination ratio of CGMMV in bottle gourd seeds tested was 84%, while seed trasmission ratio from the virus-contaminated seeds was 2.0%. Soil transmission ratio was 0-3.5% in fields naturally infested with CGMMV or ZGMMV. Control measures of the virus diseases are roguing and sanitation. These suggest that it is important to rogue the first infected crops, which include the seed and soil, especially early in the season. This may be practicable to control the diseases because CGMMV and ZGMMV have a narrow host range restricted to cucurbitaceous crops.

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Plant Toxins and Detoxification Methods to Improve Feed Quality of Tropical Seeds - Review -

  • Makkar, H.P.S.;Becker, K.
    • Asian-Australasian Journal of Animal Sciences
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    • 제12권3호
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    • pp.467-480
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    • 1999
  • Many antinutritional and toxic factors abound in tropical seeds, which are also generally rich in nutrients and therefore more prone to attack from herbivores. Antinutritional and toxic factors are considered to defend seeds against environmental vagaries and thus help to protect them. These factors though good for the plant, cause deleterious effects or are even toxic to animals and man. The conventional seeds cultivated for oil or non-oil purposes, and general aspects of antinutritional factors are not presented here as these have already been discussed widely by many workers. Deficits in conventional protein and energy sources in the tropics have stimulated a quest for alternative feeds both for animals and humans. This article attempts to highlight two new oilseed crops, Jatropha curcas and Moringa oleifera, and in addition deals with some under-utilized seeds with potential as animal feed. Most of these seed plants are adapted to various marginal growing conditions in the tropics and can help to mitigate the prevailing deficit in protein and energy sources. Antinutritional and toxic factors in seed or seed meal, various approaches to detoxify seed meal, and future research and development priorities for their exploitation as animal feeds are presented.

Modified Cultivation Methods Improve Shelf-life and Quality of Soybean Sprouts, Effects of Treatment with Oak Charcoal and Citrus sunki Seed Extract

  • Oh, Young-Ju;Kim, Soo-Hyun
    • Preventive Nutrition and Food Science
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    • 제8권4호
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    • pp.336-342
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    • 2003
  • The effects of cultivation methods (cultivation of curled-shaped type, M-1; conventional cultivation, M-2; growing after treatment with a growth regulator, M-3; cultivation by the combination of M-1 and treatment with oak charcoal, M-4) on the quality characteristics of soybean sprouts were studied by the measurement of growth characteristics. This study also investigated the changes in shelf-life stability of the new soybean sprouts (NSB) using M-4, which was cultivated with oak charcoal and treated with antimicrobial Citrus sunki seed extract. Among the soybean sprouts grown for six days at the high temperature and humidity environment (90$\pm$5% RH, 25$\pm$1$^{\circ}C$), M-1 revealed no significant difference in terms of quality, such as the harvest yield, the rot rate and the growth characteristics when compared with M-2. M-3 showed no significant difference in growth characteristics, of hardness, and sensory evaluation scores when compared with the soybean sprouts grown by conventional methods. NSB had a low number of total microorganisms and had a better appearance after five days of storage than did the control group (M-2). These findings demonstrate that chemical-free and clean soybean sprouts can be grown by combining oak charcoal and antimicrobial Citrus sunki seed extract, thereby meeting the consumer demand for safe, chemical free sprouts.

파종방법에 따른 수크령, 갈대, 억새의 발아 및 초기생장 특성 (Germination and Early Growth Characteristics of Pennisetum alopecuroides, Phragmites communis, and Miscanthus sinensis According to the Seeding Methods)

  • 조용현;이가형
    • 한국환경복원기술학회지
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    • 제17권1호
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    • pp.163-172
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    • 2014
  • To investigate the possibility of developing the seeding measure for river bank slope revegetation, germination experiment and early growth observation were conducted using 3 native species growing naturally around river banks such as Pennisetum alopecuroides, Phragmites communis, and Miscanthus sinensis. The applied seeding methods were 3 such as scattering seeds, tillage after scattering seeds, and covering up seed with soil after scattering seeds. According to seeding methods, germination experiment and early growth observation were carried out on nursery bed soil in greenhouse. As results of this study, all the 3 native plant species' germination ratio and growth in length on nursery bed soil were highest on the seeding method of covering up seed with soil. Also it was verified by Duncan's multiple range test that the germination ratio and growth in length on the seeding method of covering up seed with soil is distinguished from those on other two seeding methods. According to this results, the best possible seeding measure to be developed should be mechanical seed spraying with soil.

Production Practices for North American Ginseng: Challenges and Opportunities

  • Proctor John T.A.
    • 고려인삼학회:학술대회논문집
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    • 고려인삼학회 2002년도 학술대회지
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    • pp.212-226
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    • 2002
  • North American ginseng production may have been maximized in the traditional growing areas in the last decade and further increases may be in woods grown root, for niche markets. The marketplace demands high quality roots. Most problems leading to low quality roots start with the grower and can be avoided. These include poor site selection, inadequate soil drainage, untimely and poorly applied pesticides, and neglect of good sanitary practices. Selection of low lying sites increased the plant damage from frost in Ontario in May 2002. Seeding is still the major method of propagation of ginseng in spite of some success in culturing different parts of the plant. Opportunities exist for shortening the stratification period of North American ginseng seed to allow spring planting. This may reduce disease incidence. Since only one-third of ginseng seed sown ultimately produces plants harvested after 3 years any approach that reduces disease incidence and improves seed germination, seedling emergence and crop stand must be pursued. Disease is the major problem in ginseng cutivation from seed stratification, soil preparation prior to planting, right through to drying of the roots. Replant disease remains as an unresolved problem and needs full characterization and new approaches for control. Much progress has been made in research and related extension activities in disease control although challenges will arise such as with Quintozene and its replacement with Quadris for control of diseases caused by Rhizoctonia. Decreased labor populations and increased associated costs for ginseng production are causing rapid mechanization in every aspect of the ginseng industry. Engineers, machinery dealers, and fabricators, and growers are being challenged to increase efficiency by mechanization.

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강낭콩 발아중 유묘 부위별 당함량의 변화 (Variation of Sugar Content in Different Parts of Seedling during Germination in Phaseolus vulgaris)

  • 김종진
    • 한국작물학회지
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    • 제41권4호
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    • pp.482-488
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    • 1996
  • 비배유종자인 두류는 발아시 자엽내 전분 energy원이 어떻게 분해 전이되어 배아부로 공급되는가를 구명하고자 자엽에 당질이 많고 종자수명이 긴 강남콩을 공시하여 발아과정중 경시적으로 유식물체를 부위별로 절취하여 건물중과 당류의 경시적 소장 및 이동을 HPLC로 분석한 결과 다음과 같은 결론을 얻었다. 1. 강남콩 종자에서 자엽 부위의 수분 함율은 6.4 ∼6.5%이나 발아 기간중 ( 1∼8일) 흡수율은 45.8∼71.2%로 증가되며 자엽 하반부가 후엽 상반부보다 1.1∼3.8% 높았다. 자엽을 제외한 근부(유아 + 유근 + 유축부)의 조직 기관에서는 더욱 많은 72.2∼93.3%로 자엽조직보다 현저한 함수율을 보였다. 2. 발아중 강남콩 종자의 주요 당류는 raffinose, sucrose, glucose, fructose이며 경시적 당류 소장이 부위별로 현저한 차이를 보였다. 3. 종자가 파종 흡수되면 각 기관 조직에 raffinose가 급증하나 발아가 완료되면 유아부에서는 소진되고 자엽 하반부에서는 다소 잔존함을 알 수 있었다. 4. Sucrose는 발아초 신생 유아부와 종자의 자엽에 많이 생성되나 발아 후 유아부에서는 급감되고 자엽 조직에서는 계속 생성되어 증가됨을 알 수 있었다. 5. Glucose와 fructose는 종자의 자엽부에서는 발아 기간중 5∼l0%와 5∼l5% 범위의 적은 변화였으나 유아 및 생장부위에서는 발아 초기부터 후기까지 현저히 계속 증가됨을 인정할 수 있었다.

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녹화와 식생조성을 위한 샐비어와 금잔화 종자의 펠렛처리 (Seed Pelletizing of Salvia splendens and Calendula officinalis for the Greening and Re-vegetating)

  • 김승현;이병룡;최병곤
    • 한국환경복원기술학회지
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    • 제10권5호
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    • pp.67-75
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    • 2007
  • The purpose of this study was to pelletize to calendula and salvia seeds with peat moss as basic material for the efficient greening and vegetating of slopes and damaged areas. Also the pelletizing was compressed by spherical types that mixed basic fertilizer of N.;300 mg/l, P.;200 mg/l, K.;400 mg/g and plant growth regulator of A and NAA each 300PPM. Soil and soil surface seeding methods were researched to find the growing state of germination percent, germination date, germination force, length of leaf, number of leaf, width of leaf, length of plant, and etc. Comparing with controlled pelletizing, peat moss and +GA pelletizing treatments resulted in higher from two to three times as following growing states : length of leaves, number of leaves, width of leaves, length of plants, length of roots, fresh weights, and ratio of germination. Especially the two treatments above showed four more times effects than the +NNA treatment. Also their germinating date germinating force were earlier and stronger. The surface seeding method was superior to soil seeding.