Occurrence of Bulb Rot of Allium victorialis var. platyphyllum Caused by Sclerotium rolfsii in Korea

Kwon, Jin-Hyeuk; Jee, Hyeong Jin; Park, Chang Seuk

doi:10.5423/ppj.2008.24.1.090

Cited by 4 publications

(2 citation statements)

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“…Southern blight is a limiting disease for Jerusalem artichoke production (Sennoi et al,2010). Primarily, the disease was caused in warm climates, especially under high temperature with a humid condition (Kwon et al, 2008 andSennoi et al, 2010). Whereas, Okabe et al (2000) has grouped the S. rolfsii isolates according to ORF-ITSinto three groups; two of them were detected in warm Certain publication concerning on sources of genetic resistance against S. rolfsii.…”

Section: Introductionmentioning

confidence: 99%

Impact of Organic Manure Combinations on Performance and Rot Infection of Stressed-Jerusalem Artichoke Plants

Awad

Ahmed

2018

Egypt.J. Soil Sci.

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T HIS investigation was carried out for two summer seasonsof 2016/2017 and 2017/2018 to investigate the influence of three types of organic manures;farmyard (FYM),poultry (PLM) and pigeon manures(PGM) and their combinationson southern blight disease incidence (caused by Sclerotiumrolfsii), some vegetative growth characters, chemical constituents, yield and its components of Jerusalem artichoke (Helianthus tuberosus L.)plants grown under saline and calcareous soils. The results indicated that T 8 (75% PGM + 25% FYM) treatment recorded the highest values for plant height, number of lateral shoots, number of leaves, leaf fresh and dry weights, stem fresh dry weights and leaf area plant-1 in 2016/2017 growth season.However, T 2 (100% PLM) treatment showed the highest values for the previous characters except the number of leaves and leaf areaplant-1. Superior values were obtained by T 4 (75% FYM + 25% PLM) followed by T 3 (100% PGM) treatments regardingrelative chlorophyll content in both seasons.Treatments T 9 (75% PGM+25% PLM) for cadmium and T 7 (75% PGM+25% PLM) for nickel showed the lowest values of tuber Jerusalem artichoke in both seasons, in addition T 3 (100% PGM) and T 4 (75% FYM + 25% PLM)treatments for lead content in 2016/2017 and 2017/2018, respectively. The treatment T 2 had the highest significant reduction of the disease incidence(DI) percentage.While, the best treatment conferred highest leaf contents ofNPK, as well astuber fresh and dry weights, dry matter, and total yieldand lowest tuber content of nickel were T 7 (75% PLM + 25% PGM) and tuber cadmium content was T 9 (75% PGM + 25% PLM). The same treatment T 7 had the highest significant reduction rate of DI and area under disease progress curves (AUDPC).

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Section: Introductionmentioning

confidence: 99%

Impact of Organic Manure Combinations on Performance and Rot Infection of Stressed-Jerusalem Artichoke Plants

Awad

Ahmed

2018

Egypt.J. Soil Sci.

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“…In tropical regions, stem rot disease caused by S. rolfsii can be a severe disease of the crop (Sennoi et al, 2010). The first occurrence of S. rolfsii on Jerusalem artichoke was reported in the United States (Koike, 2004), but diseases incited by S. rolfsii are more prevalent in warm climates, especially under high temperature and high humidity (Kwon et al, 2008), and the pathogen infects a wide variety of host plants, including most vegetables, flowers, legumes, cereals, and forage plants as well as many weeds (Agrios, 2005).…”

Section: Introductionmentioning

confidence: 99%

Levels of Sclerotium rolfsii inoculum influence identification of resistant genotypes in Jerusalem artichoke

Sennoi¹,

Jogloy²,

Saksirirat³

et al. 2012

Afr. J. Microbiol. Res.

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Improvement of Jerusalem artichoke genotypes with resistance to stem rot caused by the soil borne fungus Sclerotium rolfsii is a sustainable means for controlling the disease. However, this crop is rather new to breeders. A consensus screening procedure for resistance to the disease is not yet available. The aim of this study was to determine the level of inoculum that provides the reliable and effective results for screening trials. In the experiment in Khon Kaen, Thailand, four levels of sorghum seed infested with S. rolfsii (1, 2, 3 or 4 seeds/plant) were tested with 10 Jerusalem artichoke genotypes. Plants inoculated with one sorghum seed had the lowest disease incidence, whereas plants inoculated with four sorghum seeds had the highest disease incidence. Most pairings of inoculum levels were statistically different for disease incidence except for two vs. three seeds. In addition, permanent wilting and area under disease progress curve occurred more rapidly with four seeds compared to the other inoculum levels. The highest variation among Jerusalem artichoke genotypes was observed in the plants inoculated with three sorghum seeds. Therefore, three sorghum seeds inoculum was suitable to identify Jerusalem artichoke genotypes resistant to S. rolfsii. Based on days to permanent wilting, resistant and susceptible genotypes were identified.

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Occurrence of Fruit Rot of Melon Caused bySclerotium rolfsiiin Korea

2009

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In 2007 to 2008, a fruit rot of Melon (Cucumis melo L.) caused by Sclerotium rolfsii occurred sporadically in a farmer's vinyl house in Jinju City. The symptoms started with watersoaking lesion and progressed into the rotting of the surface of fruit. White mycelial mats appeared on the lesion at the surface of the fruit and a number of sclerotia formed on the fruit near the soil line. The sclerotia were globoid in shape, 1~3 mm in size, and white to brown in color. The hyphal width was measured 3 to 8 µm. The optimum temperature for mycelial growth and sclerotia formation was 30 on PDA. Typical clamp connections were observed in hyphae of grown for 4 days on PDA. On the basis of symptoms, mycological characteristics and pathogenicity to the host plant, this fungus was identified as Sclerotium rolfsii Saccardo. This is the first report of the fruit rot of Melon caused by S. rolfsii in Korea.

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Occurrence of Bulb Rot of Allium victorialis var. platyphyllum Caused by Sclerotium rolfsii in Korea

Cited by 4 publications

References 1 publication

Impact of Organic Manure Combinations on Performance and Rot Infection of Stressed-Jerusalem Artichoke Plants

Impact of Organic Manure Combinations on Performance and Rot Infection of Stressed-Jerusalem Artichoke Plants

Levels of Sclerotium rolfsii inoculum influence identification of resistant genotypes in Jerusalem artichoke

Occurrence of Fruit Rot of Melon Caused bySclerotium rolfsiiin Korea

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