1995
DOI: 10.1080/09670879509371930
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Effect of flooding on the viability and pathogenicity of sclerotia ofSclerotium rolfsiiin Malaysian soil∗

Abstract: Sclerotial viability of Sclerotium rolfsii, the seedling blight and collar rot pathogen of chilli, decreased rapidly with time of submerging in flooded field soil. Viability was reduced to 10% 9 days after submerging. No reduction was observed in sclerotia submerged in non-sterilized tap water. Loss of viability resulted in complete loss of pathogenicity. Nongerminated sclerotia became soft and broke easily. Maceration of cortical cells was common. A bacteria-like organism was consistently associated with the … Show more

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“…Therefore, practical methods are needed to markedly reduce S. rolfsii sclerotial Journal of Applied Biosciences 93:8696 -8712 ISSN 1997-5902 viability and thus promote increases in crop yield. Some methods have been studied: for instance, flooding of sclerotium-infested fields for one month decreased not only disease incidence but also sclerotial germinability (Nakagawa et al, 1994;Tanaka et al, 1994;Sariah & Tanaka, 1995), and a reduction in sclerotial survival under flooded conditions was hypothesized to be associated with invasion and colonization by bacteria-like organisms (Tanaka et al, 1994;Hyakumachi et al, 2014). So far, the structure and succession of bacterial communities concomitant with Sclerotium rolfsii sclerotia from environment with or without flooding are not well understood.…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, practical methods are needed to markedly reduce S. rolfsii sclerotial Journal of Applied Biosciences 93:8696 -8712 ISSN 1997-5902 viability and thus promote increases in crop yield. Some methods have been studied: for instance, flooding of sclerotium-infested fields for one month decreased not only disease incidence but also sclerotial germinability (Nakagawa et al, 1994;Tanaka et al, 1994;Sariah & Tanaka, 1995), and a reduction in sclerotial survival under flooded conditions was hypothesized to be associated with invasion and colonization by bacteria-like organisms (Tanaka et al, 1994;Hyakumachi et al, 2014). So far, the structure and succession of bacterial communities concomitant with Sclerotium rolfsii sclerotia from environment with or without flooding are not well understood.…”
Section: Introductionmentioning
confidence: 99%