• Title/Summary/Keyword: Hypogaea

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Anthracnose of Peanut Caused by Colletotrichum gloeosporioides (Colletotrichum gloeosporioides에 의한 땅콩 탄저병)

  • 김주희;이용훈;이왕휴
    • Korean Journal Plant Pathology
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    • v.14 no.6
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    • pp.614-617
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    • 1998

  • Anthracnose of peanut (Arachis hypogaea L.) was found in the peanut cultivating fields in Iksan, Korea in September 1997. Infected plants showed irregularly circular water soaking brown lesions. In the severe case, leaves and stems were entirely died. The causal fungus of anthracnose isolated from the diseased plants was identified as Colletotrichum gloeosporioides Penz. and its teleomorph was Glomerella cingulata (Stonem.) Spauld. & Sch. according to the criteria based on the cultural and morphological characteristics. By arificial inoculation with fungal spores on healthy peanut, anthracnose symptom was observed 15 days after inoculation.

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Development and of Diagnostic System for Detection of Cowpea chlorotic mottle virus using by Nested PCR (Nested PCR을 이용한 Cowpea chlorotic mottle virus 정밀 진단 시스템 개발)

  • Min, Byung-Dae;Kim, Young-Suk;Lee, Siwon;Lee, Su-Heon
    • Korean Journal of Agricultural Science
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    • v.41 no.4
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    • pp.335-339
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    • 2014

  • Cowper chlorotic mottle virus (CCMV) is the 'controlled' quarantine virus as plant pathogenic virus that are classed as group VI (+) ssRNA virus that belongs to the genus Bromovirus and family Bromoviridae, When plants that are Phaseolus vulgaris, Clitoria ternatea, Nicotiana tabaccum, Glycine max, Vigna unguiculata and Vigna siensis, and Arachis hypogaea is imported in domestic. In this study, inspection system is implemented to analyze CCMV accurately and rapidly by developing RT-PCR, nested PCR, and gene insertion positive control. It is expected that the method developed in this study will contribute to the plant quarantine to be consistently utilized in the field.

  • https://doi.org/10.7744/cnujas.2014.41.4.335 인용 PDF KSCI

Effect of Peanut Seed Orientation on Germination, Seedling Biomass, and Morphology in an Oak Tree Sawdust Cultivation System

  • Ahn, Junsik;Song, Ilchan;Kim, Dongjae;Lee, Joon Chul;Moon, Sungkwon;Myoung, Sooncheol;Ko, Kisung
    • Horticultural Science & Technology
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    • v.35 no.4
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    • pp.402-409
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    • 2017

  • We performed seed germination tests to investigate the effects of seed sowing orientation on germination viability on peanut (Arachis hypogaea L.) sprouts. Specifically, we assessed the influence of seed sowing orientation on germination rate, seedling weight, and seedling length, as well as the seedling vigor index. The seeds were sown in oak tree sawdust at 3.0 cm depth. Four seed orientations were tested: vertical with the hypocotyl end down, vertical with the hypocotyl end up, horizontal with the hypocotyl end down, and horizontal with the hypocotyl end up. The mean seed germination percentages of the four seed orientations were significantly different (p < 0.01) and ranged from 25 to 91.7%. The vertical orientation with hypocotyl-end-down and hypocotyl-end-up orientations showed the highest (91.7%) and lowest (25%) germination rates, respectively. The vertical orientation with the hypocotyl end down produced the heaviest (4.9 g) seedlings and the longest hypocotyls (4.65 cm). This orientation also produced the longest true leaf + epycotyl (2.15 cm) and had the highest seedling vigor index (197.1). The seedlings had a straight growth pattern, whereas seedlings from seeds sown with the hypocotyl up had an awkward plumular hook shape. Taken together, to produce peanut sprouts, we recommend placing the seeds vertically with the hypocotyl end down because this orientation leads to a high germination rate, high biomass production, and high overall seedling quality.

  • https://doi.org/10.12972/kjhst.20170043 인용 PDF KSCI