• 제목/요약/키워드: Horticultural

검색결과 5,308건 처리시간 0.033초

Developing screening system for resistance to anthracnose in grapes by using culture filtrates from Elsinoe ampelina

  • Yun, Hae-Keun;Park, Kyo-Sun;Park, Jeong-Ho;Park, Youn-Jung;Jeong, Sang-Bouk
    • 한국식물병리학회:학술대회논문집
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    • 한국식물병리학회 2003년도 정기총회 및 추계학술발표회
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    • pp.70.1-70
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    • 2003
  • It was investigated whether culture filtrates produced by X. fastiduosa could be used to determine varietal susceptibility in grape cultivars to anthracnose as a substitute for pathogen inoculation or field screening. Bioassay of grape leaves with culture filtrates showed that their phytotoxicities were active and host-selective. Ethyl acetate extracts from those also showed the toxicities and host selectivity among grape cultivars. The sensitive range of plants to culture filtrates and their ethyl acetate extracts was consistent with the host range to the pathogen. Susceptible cultivars were sensitive to even highly diluted culture filtrates but resistant cultivars were not affected even at original culture filtrates. Susceptible cultivars were sensitive to the undiluted culture filtrates than highly diluted culture filtrates and the younger leaves were the more sensitive to the culture filtrates and their ethyl acetate extracts in grapes.

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Evaluating the resistance to crown gall in grape rootstocks.

  • Park, Jeong-Ho;Yun, Hae-Keun;Park, Kyo-Sun;Lee, Chang-Hoo;Jeong, Sang-Bouk
    • 한국식물병리학회:학술대회논문집
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    • 한국식물병리학회 2003년도 정기총회 및 추계학술발표회
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    • pp.70.2-70
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    • 2003
  • To evaluate the resistance to crown gall in grape rootstocks, cuttings from twenty seven grape rootstocks were inoculated with Agrobacterium vitis Cheonan 493 and size of galls from grapevines was measured in a greenhouse. Tumors were formed in all varieties of grape rootstocks tested in this study and no grape rootstock variety was immune to crown gall. Tumors were found on the stems of all plants tested in '196-17'and '41B' Based on measuring size and weight of galls formedon the stem of grape rootstocks, '779P' was extremely susceptible to crown gall. Some varieties such as 'Gloire', '140R', '101-l4M', '3309C', and '333EM' found to be resistant, while '99R', '1447P', 'Rupestris du lot', '110R', 'Freedom', and '41B'were susceptible and '1103P', '5C', '420A', 'Golia', and '5BB' were moderately susceptible to crown gall.

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버섯의 자실체색과 관련된 멜라닌의 특성 (Characteristics of melanin related fruiting body colors in mushrooms)

  • 이강효;장갑열;노형준;김승환;전창성;성재모
    • 한국버섯학회지
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    • 제7권4호
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    • pp.135-140
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    • 2009
  • Melanins in cell walls of mushroom are known to related with fruiting body color. Fruiting body color in oyster mushrooms is various and is very important characteristic for new cultivars. Recently, several cultivars have been breeded with various fruiting body color, for example yellow, pink, white in Korea. Recent research trend of fungal melanins and fruiting body color of mushroom will be introduced.

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여름철 $H_2O_2$ 처리에 따른 시설오이의 고온 적응성 향상 효과 (Effect of High Temperature Adaptable Improvement on Cucumber (Cucumis sativus) of Greenhouse according to Hydrogen Peroxide Treatment at Summer)

  • 우영회;김형준;허윤찬;김태영;김기덕;조일환;고관달;이관호;홍규현
    • 한국생물환경조절학회:학술대회논문집
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    • 한국생물환경조절학회 2005년도 세계의 친환경 시설원에 기술동향 및 춘계 국제학술대회 발표논문집
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    • pp.95-99
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    • 2005
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