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231225s2010 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-94-9-1105
|2 doi
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|a pubmed24n0978.xml
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|a eng
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1 |
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|a Suthaparan, A
|e verfasserin
|4 aut
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|a Specific Light-Emitting Diodes Can Suppress Sporulation of Podosphaera pannosa on Greenhouse Roses
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|c 2010
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| 336 |
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 20.11.2019
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a When rose plants bearing colonies of Podosphaera pannosa were placed in a wind tunnel, the number of conidia trapped was directly proportional to intensity of daylight-balanced (white) light from 5 to 150 μmol m-2 s-1. Illumination of samples using blue (420 to 520 nm) light-emitting diodes (LEDs) increased the number of conidia trapped by a factor of approximately 2.7 over white light but germination of conidia under blue light was reduced by approximately 16.5% compared with conidia germination under white light. The number of conidia trapped under far-red (>685 nm) LEDs was approximately 4.7 times higher than in white light, and 13.3 times higher than under red (575 to 675 nm) LEDs, and germination was not induced compared with white light. When mildewed plants were exposed to cycles of 18 h of white light followed by 6 h of blue, red, far-red light, or darkness, light from the red LEDs reduced the number of conidia trapped by approximately 88% compared with darkness or far-red light. Interrupting the above dark period with 1 h of light from red LEDs also reduced the number of conidia trapped, while a 1-h period of light from far-red following the 1 h of light from red LEDs nullified the suppressive effect of red light. Our results indicate that brief exposure to red light during the dark interval may be as effective as continuous illumination in suppressing powdery mildew in greenhouse rose plant (Rosa × hybrida)
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|a Journal Article
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1 |
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|a Torre, S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Stensvand, A
|e verfasserin
|4 aut
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|a Herrero, M L
|e verfasserin
|4 aut
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| 700 |
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|a Pettersen, R I
|e verfasserin
|4 aut
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|a Gadoury, D M
|e verfasserin
|4 aut
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| 700 |
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|a Gislerød, H R
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 94(2010), 9 vom: 31. Sept., Seite 1105-1110
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
1 |
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|g volume:94
|g year:2010
|g number:9
|g day:31
|g month:09
|g pages:1105-1110
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| 856 |
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|u http://dx.doi.org/10.1094/PDIS-94-9-1105
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