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|a 10.1094/PD-89-0033
|2 doi
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|a eng
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1 |
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|a Polashock, James J
|e verfasserin
|4 aut
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| 245 |
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|a Anthracnose Fruit Rot Resistance in Blueberry Cultivars
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|c 2005
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| 336 |
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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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 Anthracnose fruit rot (causal agent, Colletotrichum acutatum) is an important disease in most blueberry growing regions of North America. Losses caused by the disease are usually seen as a postharvest rot with orange spore masses appearing on the surface of affected fruit. One hundred cultivars/selections of blueberry were screened for resistance to fruit rot between 1993 and 2003 by inoculating container-grown plants bearing green fruit. Visible rot symptoms on ripe fruits were evaluated after a 1-week incubation at room temperature. Our analyses revealed that infection levels were affected by mean May temperatures in New Jersey, generally increasing as temperatures increased; however, this effect was not consistent among all cultivars. A generalized linear mixed model was developed to predict resistance at the historic mean May temperature, conservatively explaining 59% of the variance in resistance. Percent infection ranged from 9 to 91% with a mean of 51% across all cultivars. Results for common cultivars corresponded well with field reports of their relative susceptibilities. An estimate of narrow-sense heritability of 0.32 suggested additive inheritance of resistance. Since very high inoculum loads were used in this study, cultivars exhibiting a low percentage of fruit rot are predicted to show superior field resistance to the disease and will be incorporated into an ongoing breeding program
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|a Journal Article
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|a spp.
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| 650 |
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|a screening
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| 700 |
1 |
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|a Ehlenfeldt, Mark K
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Stretch, Allan W
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kramer, Matthew
|e verfasserin
|4 aut
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| 773 |
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|t Plant disease
|d 1997
|g 89(2005), 1 vom: 01. Jan., Seite 33-38
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|g pages:33-38
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|u http://dx.doi.org/10.1094/PD-89-0033
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