• Korean Journal of Organic Agriculture
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• v.3 no.1
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• pp.79-85
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• 1994

Worm cast is one of the effective and the least harmful organic fertilizer. The purpost of this work is to elucidate the physiological role of worm cast in the plant growth. Worm cast extract contains 17.83ppm of zinc, but either cadmium or lead were not detected in it. Cucumber (Cucumis sativus L. cv. H. N. Semiwhite) was germinated and incubated with percentage-varied extract. While 10% extract stimulated sprouting of seeds, 100% extract had no effct on it. 50% extract and 100% extract enhanced hypercotyl elongation and fresh weight most effectively. Dry matter and zinc concentration in hypercotyl were increased as percentage of extract increased. Protein con-tent was not affected by extract, 100% extract inhibits water uptake of seedling. Considering these, enhancement of seedling growth was mainly based on increment of water uptake.

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2005.05a
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• pp.83-88
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• 2005

• Korean Journal of Microbiology
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• v.13 no.4
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• pp.143-156
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• 1975

A rotting bacterium was isolated from decayed root of ginseng (Panax ginseng Meyer), cultured purely, and its pathogenicity was confirmed by reinoculation test. The strain causing ginseng root rot was identified as Pseudomonas fluoresens biotype II. The strain was somewhat different from P.marginalis and P.talaasii, considering the number of flagella, pathotype and ability of indole production. The strain did not exhibit pathogenicity to other plants tested, such as red kidney bean(Phasolus vulgaris L.), soy bean (Glycine max Merr.), cucumber (Cucumis sativus L.) lettuce (Lactuca sativa L.) and cowpea bean (Vigna sinensis Savi.).

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2006.05a
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• pp.221-228
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• 2006

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2006.05a
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• pp.229-234
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• 2006

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 2006.05a
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• pp.235-241
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• 2006

• Proceedings of the Korean Society for Bio-Environment Control Conference
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• 1995.04a
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• pp.51-52
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• 1995

혹한기 시설오이 재배시 저지온으로 인해 모의 활착지연, 양수분흡수 불량에 따른 생육부진으로 출하시기가 늦어질 뿐 아니라, 품질 및 초기 수량이 저하되고 있다. 일부농가에서 양열과 전열선을 이용하여 지온을 상승시키고 있으나, 이들 방법은 적정 지온유지 및 실용성에 있어서 여러가지 문제점이 따른다. 따라서 본시험에서는 온수지중가온방법을 도입하여 지온상승을 도모하였다. (중략)

• Proceedings of the Korean Society of Plant Biotechnology Conference
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• 2004.10a
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• pp.100-100
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• 2004

• Proceedings of the Botanical Society of Korea Conference
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• 1999.04a
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• pp.13-13
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• 1999

• Research in Plant Disease
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• v.17 no.2
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• pp.211-215
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• 2011

Cucumber mosaic virus (CMV)-like isolate was collected from Raphanus sativus (cv. Choon-hyang), which showed mosaic symptoms. The isolate was confirmed to a strain of CMV by host responses in Vigna unguiculata, Chenopodium amaranticolor and Gomphrena globosa, by viral genome composition with RT-PCR and PCR-RFLP, and by serological analysis. Symptom developed by the strain of CMV was severe in Nicotiana benthamiana, N. glutinosa, N. tabacum (cv. Samsun, cv. Xanthi), Cucumis melo (cv. Early hanover), Cucumis sativus (cv. White wonder), Capsicum annuum (cv. Chung-yang and cv. Geum-top), but mild symptom was developed in Raphanus sativus (cv. Choon-hyang), Brassica rapa ssp. pekinensis (cv. Bul-Am No. 3), and B. juncea (cv. Daenong Jukgot). Newly isolated strain of CMV could infect diverse crops including Solanaceae, Cucurbitaceae and Brassicaceae. We designated the new strain of CMV as Gn-CMV based on the novel infectivity of Brassicaceae. In double-stranded (ds) RNA analysis, Gn-CMV consisted of 3.3, 3.0, and 2.2 kb genomes likewise other strains of CMV. SDS-polyacrylamide gel electrophoresis (SDS-PAGE) showed 28 kDa of the CMV coat protein. By restriction enzyme mapping using Cac8I, ClaI and MspI of RT-PCR products indicated that Gn-CMV belongs to CMV subgroup I.