• Proceedings of the Korean Society of Crop Science Conference
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• 1996.10a
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• pp.114-115
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• 1996

• 발명특허
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• v.5 no.2 s.48
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• pp.18-20
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• 1980

2500년전쯤 그리스를 비롯한 여러 문명발상지역에서 자연에 대한 본격적인 사색이 시작되었다. $\lceil$지식 자체를 위한 지식$\rfloor$으로서의 과학은 B.C. 7세기 탈레스(Thales)에서 싹텄다. 그러나 과학의 발생은 돌발사가 아니라 점진적인 과정이었다. 탈레스 이전의 오랜 신화시대에도 신화(mythos)속에 미약하나마 논리(logos)의 싹이 있었다. 그것이 차츰 강해지면서 드디어 신화를 압도하게된 것이 탈레스 때라고 보면 좋다. 따라서 과학이 나온 뒤에도 신화의 잔재는 오래도록 남아 있게 된다.

• Proceedings of the Korean Society of Crop Science Conference
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• 2022.04a
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• pp.113-113
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• 2022

• Current Research on Agriculture and Life Sciences
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• v.11
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• pp.25-30
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• 1993

The buds of Hayward/Bruno tree were damaged from $-7^{\circ}C$ but serious damage was found on the buds treated at $-15^{\circ}C$ and $19^{\circ}C$. The bark tissue was more suceptible to low temperature than the bud. The trees were survived and bursted their at all on the top of the graft union and new shoots were formed from the rootstock of the tree. Yellowish area on the leaf surface was found, which is believed that as a result of low temperature. From these, the kiwifruit trees must be grafted with cold tolerant rootstocks will be clarified in future.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.21 no.1
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• pp.97-124
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• 1976

To find out the most effective method of treatments for the induction of sprouting of dormant seed potato pieces for the fall crop production of Irish cobbler, this experiment was carried out with sprout inducing bed and field performance trial. In GA treatments, about 10 days were required to sprout and resulted uniform and thin 3-4 sprouts per tuber piece, but sprouts were slender and rooting was not observed. In Ethrel treatments, 20-25 days were required, and sprouts were inferior than that of GA treatment in uniformity of sprouting, and percentage of rotten pieces and of healthy sprouted tuber pieces, but number of sprouts per tuber pieces was low, being 1-2, and sprouts were short, thick, and healthy, and showed good rooting. In GA and Ethrel mixture treatments, 1-2 more days were required to sprout than GA treatments, but sprouts were relatively healthy, and other sprouting pattern were like that of GA treatments. In Ethylene chlorohydrin and 6-Benzyl-adenine treatments, sprouting was like that of Ethrel treatments, but much more days were required than Ethrel treatments and tendency of severe rotting was observed. Optimum treating methods of promising chemicals found to be 1-2 and 2-5 ppm GA solution, 500 and 1000-2000 ppm Ethrel solution, and 1-2＋250-500 and 5＋250-500 ppm GA and Ethrel mixture solution for 60 min. treatment of tuber piece and whole-tuber, respectively. Induction of sprouting in dry and hot time resulted severer rotting of tuber pieces during the induction of sprouting and with the advancement of dormancy, being delayed in date of treatment, tendency of promotion of sprouting and rooting was observed. When sprouted tuber piece was transplanted at the same date, yields were in order of Ethrel, GA and Ethrel mixture, and GA treatment, indicating the correlation between yield and healthiness of sprout and rooting status of sprouted tuber piece. In all treatments, earlier transplanting resulted higher yields.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.59 no.4
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• pp.427-434
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• 2014

This study aimed to investigate the effects of pre-harvest sprouting (PHS)-damaged grains of rice on seed viability, germination percentage and seedling emergence rate. As comparing the seed lots of same cultivar 'Hopum' with different PHS percentages, seed lot with 8% PHS (high PHS percentage) showed 30% lower germination than that with 1% PHS (low PHS percentage). The difference of seedling emergence rate and seed viability percentages between the two seed lots was consistent with that of germination percentage. PHS-damaged brown rice was observed protruded embryo, discolored endosperm and fungi infected grains. PHS grains were classified into two groups, PHS-I showing endosperm discoloration in one third of a grain and PHS-II in more than half of a grain. The seed lot with high PHS percentage had much more PHS-II grains than that of low PHS percentage. PHS-II grains showed remarkably lower germination percentage than PHS-I grains and got severely moldy during germination test. In laboratory experiment, morphological changes and re-germination ability of seeds which dried after germination by soaking were tested. Sprouted seeds of 3mm shoot length showed half discolored endosperm and had a strong resemblance with PHS-II grains. Re-germination percentage of 3mm sprouted seeds sharply decreased than 2 mm sprouted seeds. Sprouted seeds which were treated for accelerated-aging (AA) for 24hr at $45^{\circ}C$ were significantly reduced in re-germination percentage compared to that of non-AA-treated sprouted seeds. These results indicate that PHS with over 3mm shoot length can severely damage not only grain appearance but also seed viability, germination percentage and seedling emergence rate. Therefore, we conclude that larger difference of germination percentage or seedling emergence rate between seed lots having smaller difference of PHS percentage might be caused by accelerated seed deterioration in PHS-damaged rice grains.

• Applied Biological Chemistry
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• v.37 no.1
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• pp.1-8
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• 1994

This study was carried out to investigate the changes in volatile constituents concerning with the flavor of the green ginger (Zingiber officinale Roscoe) during storage in underground pit ($15^{\circ}C$, RH 95%). And the constituents of essential oil of etiolated shoots formed on the mother rhizomes during the five months storage in the dark under same conditions were compared with those of mother rhizomes. The essential oils of Korean domestic ginger (Bong-dong cultivar) were isolated by simultaneous steam distillation and extraction method (SDE). Then the compositions of the essential oils were analysed by GC and GC-MS spectrometry. The major compounds of essential oil from the fresh rhizomes were zingiberene, $citronellol+{\beta}-sesquiphellandrene$, ${\beta}-phellandrene$, camphene, geranial, ${\gamma}-bisabolene$, ar-curcumene+geranyl acetate, ${\alpha}-pinene$, ${\beta}-gurjunene$, limonene and neral. The content of monoterpene hydrocarbons increased with a concomitant lowering in the amounts of sesquiterpene hrdrocarbons and oxygenated sesquiterpenes during storage of rhizomes although contents of the oxygenated monoterpens changed little or slightly during the storage. During the storage the content of such monoterpenes as camphene, ${\beta}-phellandrene$ and citral (neral and geranial) increased whereas the content of such sesquiterpenes as zingiberene and $citronellol+{\beta}-sesquiphellandrene$ decreased. The composition of shoot oil differed from that of mother rhizome oil in having higher content of terpene hydrocarbons and also in the higher content of bornyl acetate, ${\beta}-gurjunene$ and ar-curcumene+geranyl acetate and lower in citral (neral and geranial).

• Applied Biological Chemistry
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• v.51 no.3
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• pp.212-218
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• 2008

This study was performed to determine the antimutagenic and anticancer effects of ethanol extract of buckwheat sprout using Ames test and SRB assay, respectively. An ethyl acetate fraction (200 ${\mu}/plate$) from the ethanol extract of buckwheat sprout showed inhibition rate of 80.6% against the mutagenesis induced by N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) in Salmonella typhimurium TA100 strain. Also the ethyl acetate fraction (200 ${\mu}/plate$) showed higher antimutagenic activity than other fractions against the mutagenesis induced by 4-nitroquinoline-1-oxide (4NQO) in Salmonella typhimurium TA98 and TA100. In addition, the ethyl acetate fraction (200 ${\mu}/plate$) showed high antimutagenic effect of 80.9% and 85.9% against the mutation of TA98 and TA100 strains induced by 3-amino-1,4-dimethyl-5H-pyrido-(4,3-b)indol (Trp-P-1), respectively. The cytotoxic effects of each solvent fraction from the ethanol extract of buckwheat sprout against human cancer cell lines including lung carcinoma (A549), gastric carcinoma (AGS), breast adenocarcinoma (MCF-7), hepatocellular carcinoma (Hep3B), and colon adenocarcinoma (Colo 205) were investigated. The ethyl acetate fraction of buckwheat sprout ethanol extract at the concentration of 1.0 mg/ml showed strong cytotoxic activities of 70.3, 94.8, 79.6, 82.3, and 73.2% against A549, AGS, MCF-7, Hep3B and Colo 205 cancer cell lines, respectively.

• Journal of Bio-Environment Control
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• v.16 no.4
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• pp.415-419
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• 2007

This study was conducted to compare the storability of some sprout vegetables; alfalfa, broccoli, radish, red-cabbage, and red-radish, packed with 50 low density polyethylene (LDPE) film in MA storage. Most of all 5 different sprout vegetable crops maintained the fresh weight higher than 99% until 10 days storage at 2 and $8^{\circ}C$. The carbon dioxide concentration in packages was higher at 8 than at $2^{\circ}C$. It was higher in radish and red-radish sprouts than other crops. As the oxygen concentration showed opposite trends to carbon dioxide, that of radish and red-radish sprouts decreased more than 3% after 3 days in 8 storage. Ethylene concentration in the packages of alfalfa was 0.1 ppm, significantly higher than other four crops with less than 1.0 ppm. Temperature treatment, however, did not influence the ethylene concentration in packages. The radish and red-radish sprouts, with lowest oxygen concentration in package, showed lowest off-flavor compared to the others. The visual quality of these sprouts in packages showed higher at $2^{\circ}C\;than\;at\;8^{\circ}C$ and was maintained the highest in radish sprouts, followed by red-radish, broccoli, red-cabbage, and alfalfa sprouts in that order. In conclusion, as the sprout vegetables have different shelf-life, of which radish was $4{\sim}5$ days longer than that of alfalfa the distributed condition of sprout vegetables should be differently controlled according to kinds of crops.

• Journal of Life Science
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• v.18 no.12
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• pp.1758-1763
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• 2008

To increase the functional properties of black soybean, we prepared the Chungkukjang with black bean at $40^{\circ}C$ after its germination according to the time course. The black soybean was soaked for 3 hr and dried three times with 2 hr interval. The germination ratio reached 50% for 12 hr germination and 80% for 24 hr, respectively. The optimum temperature of the germination was $18^{\circ}C$. The general composition of the germinated black soybean were not different from the control black soybean. During germination and growth, protease activity decreased slightly, whereas glucoamylase activity increased. On the other hand, content of isoflavone was increased to two times when the germinated leaf was 20 mm length. Absolute amount of the isoflavone was about 260 ${\mu}g$/g. When we estimated the sensory test of the Dua-chungkukjang, the color and mucoid formation was not different from traditional chungkukjang but bad flavor was decreased compared to traditional chungkukjang. And the same result was detected in the Dua-chungkukjang soup.