• Korean Journal of Environment and Ecology
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• v.14 no.3
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• pp.199-204
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• 2000

최근 자연생태계에서 일어나고 있는 자생 민들레류의 감소와 서양민들레의 급속한 증가원을 종자 발아특성을 통해 알아보고자 한다. 각각의 종자는 무처리를 비롯하여 10일, 20일, 30일, 60일간의 저온처리를 실시하였으며 발아조건은 광조건과 암조건으로 실험하였다. 자생민들레의 경우에 광조건하의 무처리 대조구에서 28%의 발아율을 나타내었으나 60일간의 저온처리구에서 90%의 발아율을 나타내었다. 발아세와 평균발아기간도 30일 이상의 저온처리와 광조건하에서 양호한 성적을 나타내었다. 좀민들레의 경우에도 민들레와 거의 유사한 경향을 나타내어 30일 이상의 저온저리와 광조건하의 발아상태가 대조구에 비해 상대적으로 양호하였다. 그러나 서양민들레는 저온무처리구의 광조건에서 발아율 88.8%로 자생 민들레류에 비해 현저히 높게 나타났다. 또한 서양민들레 종자는 저온처리에 의핸 현저한 발아율 향상을 볼 수 없었다. 그러므로 30일 이상의 저온처리에 의해 휴면이 타파되고 발아율이 향상되는 자생 민들레류의 비휴면성인 성양민들에 비해 종 번식에 있어 상대적으로 불리하다는 것을 알 수 있었다.

• Journal of Bio-Environment Control
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• v.22 no.2
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• pp.188-191
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• 2013

This study was carried out to investigate the effects of light, temperature, and priming treatment on the germination of Bidens bipinnata seeds for the purpose of cultivation of new vegetable crop. The results showed that the treatment of $25^{\circ}C$ yielded the highest germination percentages and the highest germination speed in both light and dark conditions. Light condition had no effect on the germination of B. bipinnata. Priming treatments demon-strated the following improved germination percentages: $Ca(NO_3)_2$ 0.1 M (68.3%), $K_3PO_4$ 0.1 M (63.3%), and $KNO_3$ 0.1 M (53.3%), with $Ca(NO_3)_2$ 0.1 M treatment giving the greatest improvement. Consequentially, the results suggested that $25^{\circ}C$ light condition, and $K_3PO_4$ 0.1 M or $Ca(NO_3)_2$ 0.1 M priming treatments would be effective method to improve the germination of Bidens bipinnata seeds.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.32 no.4
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• pp.417-424
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• 1987

The seeds of three barley varieties of which initial seed vigor were different were used to measure seed vigor of accelerated aging techniques. A vigor index derived from the product of percent germination and plumule length was used to estimate seed vigor. The index was compared with the results of other tests. The results of warm germination test well suited to the measurements of seed vigor at the advanced stages of seed deterioration. Other vigor measurements except ATP and GADA values, showed close relationships with the vigor index. The measurements of plumule length in cold test and tetrazolium test were found to be appropriate for predicting seed quality.

• Proceedings of the Korean Society of Crop Science Conference
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• 1981.10a
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• pp.14-14
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• 1981

• Korean Journal of Plant Resources
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• v.8 no.3
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• pp.335-339
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• 1995

This experiments were carried out to develop for food in some plants seeding. Plant materials were Raphanus sativus, Perilla frutescens var. acuta, Perilla frutescens var. japonica, Scutellaria baicalensis, Angelica dahurica, Angelica gigas, Ligusticum acutilobum, Peucedanum japonicum, Platycodon grandiflorum, Codonopsis lanceolata, Allium monanthum and Fagopyrum esculentum. The results obtained are summarized as follows ; germination rate was the highest in Raphanus sativus and germination vigor was excellent in Perilla frutescens var. acuta Total overall acceptability was the best in Perilla frutescens var. acuta

• Journal of Practical Agriculture & Fisheries Research
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• v.26 no.1
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• pp.16-21
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• 2024

Green manure crops have a variety of benefits, including improving soil fertility, removing soil salinity, enhancing soil aeration and moisture regulation, reducing the use of chemical fertilizers, reducing nitrous oxide emissions, reducing herbicide use through weed-suppressive effects, promoting agricultural ecosystem protection and carbon dioxide absorption capacity. To find ways to increase the germination rate of legumes and green manure crop seeds, which are imported in large quantities every year. It was carried out that two seed priming methods, osmotic priming and heat treatment, and compared their effects. Heat treatment was treated for 10 minutes at 40℃ or 60℃, followed by rinsing with water. Osmotic priming was applied for 30 seconds in a saline solution with a specific gravity of 1.13. Overall, there was no significant difference in the final germination rate, but it was found that osmotic priming and heat treatment affected the germination speed. However, applying heat treatment and osmotic priming simultaneously did not affect the germination characteristics. Therefore, it is suggested that heat treatment and osmotic priming can increase the germination speed of soybean and green manure crops.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.34 no.3
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• pp.310-323
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• 1989

This study was carried out to find out the difference of ripening and growth characteristics among the different florets in same panicle. There were 2 different transplanting date (May 25 and June 10) and 6 varieties were used. Physiological ripening period, ripening speed, 1000 grain weight, germination speed and grain quality were studied among the different florets (1, 5 and 8 days after heading) in same panicle. Physiological ripening period was long in late transplanting, late flowering floret, and late varieties by 3-9 days in Japonica. Ripening speed and 1000 grain weight were high in early transplanting and early flowering florets. There was positive correlation among the ripening speed, 1000 grain weight and a average temperature but negative correlation between the ripening and physiological ripening period. Germination speed was excellent in early flowering floret after heading. There was difference in amylose content within varieties and different flowering grains and there was significant correlation between grain quality and meteorological factors in some varieties.

• Korean Journal of Food Science and Technology
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• v.36 no.2
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• pp.294-298
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• 2004

Three Korean soybean varieties, Dawon, Taekwang, and Myeongiju-namul were investigated for changes in isoflavone and oligosaccharides contents, and dry weight during germination. Soybeans were soaked for 10 hr in water, followed by 8 days germination at $20^{\circ}C$ under dark condition, Highest isoflavone content measured was Myeongju-namul (1.228 mg/g), followed by Taekwang (0.671 mg/g) and Dawon (0.661 mg/g). Total isoflavone content generally increased during initial germination and decreased thereafter. Maximal increase in isoflavone was 20-50%, particularly in aglycone type such as daidzein and genistein. Raffinose and stachyose contents decreased rapidly during germination, while that of sucrose showed relatively slow decrease. Dry weights of soybeans steadly decreased.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.66 no.4
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• pp.435-442
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• 2021

This study was conducted to determine an appropriate coating method for mechanized sowing of small and light Italian ryegrass seeds. In the case of manufacturing coated seeds, 2% PVA was superior as an adhesive compared to PVP and Tween80. Calcium carbonate + talc adhered to the seeds smoothly and well and the seed weight was higher than that of the other coating materials. The germination percentage of seeds coated with calcium carbonate + talc was 95.8%, which was not significantly different from 96.5% of the control group, but the mean daily germination was the highest. As the coverage ratio of calcium carbonate + talc increased, the strength tended to increase when coated at 1.5 times the seed weight. There was no difference in the germination rate and plant height compared to the control group according to the coverage ratio.

• Horticultural Science & Technology
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• v.17 no.2
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• pp.136-137
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• 1999

This experiment was conducted to improve germination rate and growth of Lilium formolongi 'Neosan No. 2' seeds by priming. Seeds were immersed in the solutions of 200 mM $Ca(NO_3)_2$, 200 mM $KNO_3$ for 3 days and 100 mg/L $GA_3$ for 1 day at $17{\pm}1^{\circ}C$. For chilling treatment, seeds were kept in the low temperature chamber of $2{\pm}1^{\circ}C$ for 30 days. Germination percentage of seeds treated with $Ca(NO_3)_2$ or $KNO_3$ was higher than that of seeds with other treatments and control seeds to 10 days after seeding, but final germination percentage was not significantly different among all treatments including control. Early growth of seedlings treated with $Ca(NO_3)_2$ and $KNO_3$ were better than that of seedling with other treatments.