• 제목/요약/키워드: natural seeds

검색결과 516건 처리시간 0.03초

배수성 뽕나무에 있어 자연교잡한 경우의 임성 (On the Fertility of Several Polyploidy Mulberries, Morus, Fructified by Natural Cross)

  • 박광준
    • 한국잠사곤충학회지
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    • 제36권2호
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    • pp.97-101
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    • 1994
  • 자연교잡으로 결실한 2배, 3배, 4배 및 6배체 뽕나무로 부터 채종한 종자의 형태임성 및 발아력은 다음과 같다. 1. 종자의 크기는 4배성 뽕나무의 종자가 가장 크고 2배성의 것은 약간 크며 3배성의 것은 보통 크기이고 6배성의 것은 극히 작았다. 2. 3배성뽕나무 가운데 신광뽕의 임실율은 25.4%이고 교잡성공율은 10.2% 이었으며, 청운뽕 55%의 임실율을 나타냈지만 발아력이 전무하였다. 3. 4배성뽕나무의 종자는 약 61~98%의 임실율을 나타내고 교잡성공율은 약 30~54%이었으며 6배성인 북산2호는 약 43%의 임실율, 7%의 교잡성공율을 나타냈다. 4. 물에 뜨는 종자의 발아력은 2배 및 4배체의 종자는 상당한 수준이었으나 3배 및 6배체의 것은 발아력이 없었다. 5. 2배성 뽕나무의 임실율은 약 81~95%의 고임성이고 교잡성공율도 약 47~74%로서 비교적 높았다.

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무, 배추 및 고추종자의 분쟁사례연구 (The Study on the Disputes Originated from the Seeds of Radish, Chinese Cabage, and Pepper)

  • 박태영;윤화모;민병훈
    • 자연과학논문집
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    • 제8권2호
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    • pp.153-158
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    • 1996
  • '농산종묘법'하에서 1968년부터 1970년 사이에 발생한 채소 종자분쟁은 177건 이었다. 이중 발아불량에 대한 종자분쟁은 46건(26%)으로 가장 많았으며 불량종자는 43건(24.3%), 수입종자에 대한 분쟁은 42건(23.7%) 이형주에 대한 분쟁은 27건(15.6%) 순이었다.'종묘관리법'하에서 모든 채소로부터 발생한 종자분쟁은 1976년부터 1995년 사이에 175건 이었는데 무가 53건(30%)으로 비교적 많았으며 배추 19건(11%), 고추 17건(10%) 순이었다. 무에서 발생한 종자분쟁의 유형은 추대(36%), 파종기불이행(21%), 순도불량(19%) 등이었으며 배추는 미량원소 결핍(27%), 발아불량(21%), 결구불량(16%), 병해(16%) 등이었고 고추는 착과불량(6%), 기형과발생(5%), 병해(3%) 등이었다.

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Comparative Study of Processed (Shodhit) and Unprocessed Seeds of 'Gunja'-Abrus precatorius L.

  • Gautam, D.N. Singh;Singh, P.N.;Mehrotra, Shanta
    • Natural Product Sciences
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    • 제5권3호
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    • pp.127-133
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    • 1999
  • 'Gunja' is attributable to the plant Abrus precatorius L. (Leguminosae). Three forms with red, brown and another with white seeds are known to occur in this species and are employed for different therapeutic uses viz. as purgative, emetic, aphrodisiac, tonic and also as an abortifacient. According to some Ayurvedic literature the seeds are poisonous and should be given to the patients after proper processing ('Shodhan'). A comparative study of various phytochemical parameters, namely, percentage of successive extractives, total proteins, tannins, total ash and acid insoluble ash of these three forms of the processed (with cow's milk and Kanji) and unprocessed seeds was done. TLC and densitometric scanning of successive extractives was also carried out to serve as markers for processed and unprocessed seeds. The percentage of proteins, tannins, alcohol and water soluble extractives decreased in the processed material. Besides, their acute toxicity, CNS activity were also studied in albino mice and it was found that white seeds are more toxic as compared to the red and brown. The toxic effect was reduced with the processing. Further, the 'Kanji' processed seeds are less toxic than the milk processed one.

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Determination of the Effect of Different Ground Mustard Seeds on Quality Characteristics of Meatballs

  • Caglar, Muhammed Yusuf;Gok, Veli;Tomar, Oktay;Akarca, Gokhan
    • 한국축산식품학회지
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    • 제38권3호
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    • pp.530-543
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    • 2018
  • This study investigated the effect of yellow, black, and brown mustard seeds on color, lipid oxidation (thiobarbituric acid-reactive substances [TBARS]), and microbiological and sensory qualities of meatballs during storage. Heat treatment of mustard seeds affected the TBARS value of meatball samples (p<0.0001). The addition of mustard seeds decreased TBARS value of meatball samples (p<0.0001). Heat treatment of mustard seeds decreased the $L^*$, $a^*$ and $b^*$ values of meatball samples (p<0.0001). The meatball samples with mustard seeds increased $b^*$ value of meatball samples however it decreased $a^*$ value of meatball samples (p<0.0001). The addition of mustard seeds decreased aerobic mesophilic bacteria count (p<0.0001), Enterobacteriaceae count (p<0.0001), psychrophilic bacteria count (p<0.0001) and yeast and mold count of meatball samples (p<0.0001). On a given storage day, the yellow mustard added meatballs sample was given higher color, appearance, flavor, acceptability ratings than those added black and brown mustard. Regarding sensory and microbiological properties, mustard seed contributed to microbiological quality and sensorial properties of meatball samples.

천연염색 직물의 기능성 향상에 관한 연구 (A Study on the Functional Improvement of Natural Dyed Fabrics)

  • 서명희
    • 한국지역사회생활과학회지
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    • 제19권2호
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    • pp.213-221
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    • 2008
  • In this study, a dye bath was made using a mixture of distilled water, pine needle extract and bamboo vinegar. Analysis and comparison of various functions of cotton fabrics dyed using bamboo charcoal and gardenia seeds in distilled water and in the dye bath mixture were done. The summary of the results is as follows. Comparing bamboo vinegar and the pine needle extracts, the bamboo vinegar had a higher antibacterial function. In the case of natural dyeing cotton fabrics using bamboo charcoal and gardenia seeds, the additional amount of dyestuff for optimization is 10 g and 20 g respectively per 1 liter of distilled water. The suitable dye bath mixture ratio of distilled water, pine needle extract, and bamboo vinegar considering functionality and economical efficiency of dyed fabrics is 4:3:3. By using the mixture made in this study as a dye bath, improved antibacterial function, deodorization, and colorfastness can be obtained more than distilled water alone.

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한국산 식물식용유지의 성분에 관한 연구 - 제 6 보 : 참깨와 들깨종자유 중의 천연산화방지제에 관한 연구 - (Studies on the Constituents of Korean Edible Oils and Fats - Part 6 : A Study on the Natural Antioxidants of sesame and perilla seeds -)

  • 황성자;고영수
    • Journal of Nutrition and Health
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    • 제15권1호
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    • pp.30-38
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    • 1982
  • Experiments were carried out in order to compare the natural antioxidants in the acetonitril extracts of raw and baked seeds of Korean sesame and perilla by thin layer and gas chromatography. The sample was dissolved in n-pentane and extracted with acetonitril and the acetonitril extract was separated by thin layer chromatography using silica gel. The spots were detected by spraying with 2, 6 -dichloroquinone -4-chlorimide, phosphomolybdic acid and dimethylamine as chromogenic reagents. Natural antioxidant, such as ${\delta}-tocopherol$ detected in raw and baked sesame and perilla seed oil by TLC and sesamol was detected only in raw and baked sesame seed oil by GC.

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NMR Assignments of Two Furofuran Lignans from Sesame Seeds

  • Kang, Sam-Sik;Kim, Ju-Sun;Jung, Jee-Hyung;Kim, Young-Hee
    • Archives of Pharmacal Research
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    • 제18권5호
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    • pp.361-363
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    • 1995
  • Two furofuran lignans, sesamolin and sesangolin were isolated from the seeds of Sesamum indicum and S.angolense, respectively. Detailed analysis of the $^1H-and^{13}C-NMR$ spectra of these lignans was carried out by the application of two-dimensional $^1H-^1/H\; COSY\; and^1/H^{13}C$ multiple-bond, multiple-quantum spectroscopic correlation techniques.

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Chemical Composition of Seed in Medicinal Soybean Collected in Korea

  • Seong, Rak-Chun;Kim, Jeong-Gyu;Hwang, Young-Hyun
    • 한국작물학회지
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    • 제43권3호
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    • pp.141-146
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    • 1998
  • Production of medicinal soybean [Glycine max (L.) Merrill], characterized with black seed, white stripe at hilum border, yellow cotyledon and small seed, is increasing with increasing consumption. The objective of this study was to investigate the chemical composition of medicinal soybean seed and to provide basic information, for the characterization of these soybeans among genetic resources. Forty-four lines of medicinal soybeans collected from Korea and two control cultivars, 'Hwangkeumkong' (Yellow seed coat) and 'Geomjeongkong l' (Black seed coat) were planted at the Research Farm of the College of Natural Resources, Korea University, located at Namyangju City on May 25, 1996. Seeds of these lines were harvested at full maturity and analyzed for protein, oil, sugar, starch and mineral contents. Mean protein and oil content of the medicinal line seeds were 42.6 and 16.1%, respectively, and those of the control cultivars were in the middle range for protein and oil content. However, sugar and starch content of the medicinal line seeds appeared to be in the lower range of the distributions compared to the control cultivars and were 10.0 and 1.68%, respectively. Mean P, K, Ca, and Mg contents of the seeds of medicinal soybean lines were 15.9, 21.5, 3.11, and 2.81 mg/g, respectively, indicating that these lines had higher P, K, and Mg and lower Ca contents when compared to the control cultivars. Mean Na and Fe contents were 671 and 224 mg/kg, respectively, showing lower Na and similar Fe contents. The observed results provided that chemical compositions of medicinal soybean were, on average, different from those of the general soybean cultivars.

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Control of Crisphead Lettuce Damping-off and Bottom Rot by Seed Coating with Alginate and Pseudomonas aeruginosa LY-11

  • Heo, Kwang-Ryool;Lee, Kwang-Youll;Lee, Sang-Hyun;Jung, Soon-Je;Lee, Seon-Woo;Moon, Byung-Ju
    • The Plant Pathology Journal
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    • 제24권1호
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    • pp.67-73
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    • 2008
  • Seedling damping-off and bottom rot caused by Rhizoctonia solani are yield limiting diseases of crisphead lettuce. To provide biocontrol measure in the management of the diseases, biocontrol strain Pseudomonas aeruginosa LY-11 was isolated from lettuce rhizosphere and introduced into crisphead lettuce rhizosphere by the seed coating delivery method. Alginate was used as a coating material to generate beads containing $10^6-10^{6.5}$ colony-forming units (CFUs) of viable bacterial cells of LY-11. When seeds germinated from the alginate beads containing the strain LY-11, the bacteria established mostly in plant rhizosphere to maintain at least $10^4$ CFU per gram of plant tissues. Crisphead lettuce seedlings germinated from the entrapped seeds were less affected from damping-off and bottom rot with disease control values of 70.4% and 85.4% respectively. Although P. aeruginosa LY-11 colonized plant rhizosphere and not phyllosphere, the result indicated that bottom rot caused by the foliar inoculation of R. solani was effectively reduced by the rhizobacteria. All data suggested that immobilized rhizobacterial application in seeds by alginate coating could control damping-off and induce induced systemic resistance of crisphead lettuce to reduce bottom rot.