Survival of Botrytis cinerea in soil in south-eastern Spain
The survival of Botrytis cinerea in sterile and unsterile soil at different temperatures and relative air humidities was investigated in south-eastern Spain. Conidia survived only 7 days at 40°C but, depending on relative humidity, for 30-90 days at 22°C. High air humidity (95%) was needed to maintain soil humidity (8%) at a level that favoured conidial survival. Conidia survived better in sterile soil than in unsterile soil, probably because of the presence in the latter of soil microorganisms antagonistic to B. cinerea. Survival of conidia in environmental conditions simulating those in a greenhouse was less than 28 days. Results showed that B. cinerea conidia cannot survive over summer in south-eastern Spain, and other primary sources of inocula are discussed.
| Main Authors: | , |
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| Format: | artículo biblioteca |
| Language: | English |
| Published: |
John Wiley & Sons
2002
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| Subjects: | Conidia, Grey mould, Inoculum sources, South-eastern Spain, Survival, |
| Online Access: | http://hdl.handle.net/20.500.12792/3039 http://hdl.handle.net/10261/292811 |
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| Summary: | The survival of Botrytis cinerea in sterile and unsterile soil at different temperatures and relative air humidities was investigated in south-eastern Spain. Conidia survived only 7 days at 40°C but, depending on relative humidity, for 30-90 days at 22°C. High air humidity (95%) was needed to maintain soil humidity (8%) at a level that favoured conidial survival. Conidia survived better in sterile soil than in unsterile soil, probably because of the presence in the latter of soil microorganisms antagonistic to B. cinerea. Survival of conidia in environmental conditions simulating those in a greenhouse was less than 28 days. Results showed that B. cinerea conidia cannot survive over summer in south-eastern Spain, and other primary sources of inocula are discussed. |
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