• Title/Summary/Keyword: Horticultural Plant

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Resistant Cultivar Screening to Black Rot for Organic Cultivation of Broccoli (브로콜리 유기재배를 위한 검은썩음병 저항성 품종 선발)

  • Jeon, Ji-Young;Yoon, Cheol-Soo;Yeoung, Young-Rog;Chung, Eun-Kyoung;Lee, Sang-Jun;Zhang, Yan;Lee, Jae-Eun;Kim, Byung-Sup
    • Research in Plant Disease
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    • v.15 no.1
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    • pp.36-40
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    • 2009

  • This research was accomplished to screen the cultivar which is suitable in organic cultivation of the broccoli having good horticultural characteristics and the resistance to black rot. Thirteen cultivars of the broccoli were planted at Gangwon alpine areas of Pyeongchang county and Gangneung city and investigated the horticultural characteristics in 2006. Everybro, Tamsuerun, Nockjae, and Pilgrim had good horticultural characteristics in all two experimental fields. The resistance and susceptible reactions regarding the black rot of broccoli cultivars were different from according to two fields. This result means that physiological race of black rot pathogen distribute in Gangwon alpine areas. Everybro and Nockguck were resistance to black rot in all two experimental fields. Also these two cultivars had good horticultural characteristics. We recommend that Everybro and Nockguck will be suitable in organic cultivation.

  • https://doi.org/10.5423/RPD.2009.15.1.036 인용 PDF KSCI

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
    • Proceedings of the Korean Society of Plant Pathology Conference
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    • 2003.10a
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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
    • Proceedings of the Korean Society of Plant Pathology Conference
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    • 2003.10a
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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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