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|a 10.1094/PD-89-0317
|2 doi
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|a eng
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| 100 |
1 |
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|a Vallad, Gary E
|e verfasserin
|4 aut
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| 245 |
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|a Weedborne Reservoirs and Seed Transmission of Verticillium dahliae in Lettuce
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| 264 |
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|c 2005
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| 336 |
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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| 500 |
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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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| 520 |
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|a The seed transmission of Verticillium dahliae was evaluated in lettuce (Lactuca sativa). Seed collected from lettuce plants infected with V. dahliae were plated with or without surface sterilization on Sorenson's modified NP10 medium. Of the seed plated with or without surface sterilization, 90 and 66%, respectively, yielded colonies of V. dahliae. The incidence of Verticillium wilt ranged from 55 to 80% among lettuce plants grown from seed harvested from infected plants. All evaluated isolates of V. dahliae were capable of seed transmission in lettuce. A V. tricorpus isolate failed to cause significant disease in lettuce or to become seedborne. Storage of contaminated seed at seven temperatures ranging from -20 to 15°C for up to 72 weeks did not reduce the incidence of V. dahliae in seed, whereas storage at room temperature (23 ± 2°C) for 20 to 52 weeks reduced the incidence of V. dahliae without affecting seed viability. Of the 11 weed species collected from fields with a known history of Verticillium wilt of lettuce, four yielded V. dahliae. Pathogenicity tests demonstrated that isolates of V. dahliae from Sonchus oleraceus, Capsella bursa-pastoris, and Solanum sarrachoides were as virulent as or more virulent than an isolate of V. dahliae from lettuce. These results demonstrate the potential of seedborne and weedborne inoculum to disseminate V. dahliae
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| 650 |
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|a Journal Article
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| 700 |
1 |
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|a Bhat, Ravi G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Koike, Steven T
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ryder, Edward J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Subbarao, Krishna V
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 89(2005), 3 vom: 01. März, Seite 317-324
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|x 0191-2917
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|g volume:89
|g year:2005
|g number:3
|g day:01
|g month:03
|g pages:317-324
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| 856 |
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|u http://dx.doi.org/10.1094/PD-89-0317
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