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231225s2012 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-01-12-0030-RE
|2 doi
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|a pubmed24n0978.xml
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|a DE-627
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|a eng
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| 100 |
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|a Sankaran, Sindhuja
|e verfasserin
|4 aut
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|a Evaluation of Visible-Near Infrared Reflectance Spectra of Avocado Leaves as a Non-destructive Sensing Tool for Detection of Laurel Wilt
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|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 Laurel wilt, caused by the fungus Raffaelea lauricola, affects the growth, development, and productivity of avocado, Persea americana. This study evaluated the potential of visible-near infrared spectroscopy for non-destructive sensing of this disease. The symptoms of laurel wilt are visually similar to those caused by freeze damage (leaf necrosis). In this work, we performed classification studies with visible-near infrared spectra of asymptomatic and symptomatic leaves from infected plants, as well as leaves from freeze-damaged and healthy plants, both of which were non-infected. The principal component scores computed from principal component analysis were used as input features in four classifiers: linear discriminant analysis, quadratic discriminant analysis (QDA), Naïve-Bayes classifier, and bagged decision trees (BDT). Among the classifiers, QDA and BDT resulted in classification accuracies of higher than 94% when classifying asymptomatic leaves from infected plants. All of the classifiers were able to discriminate symptomatic-infected leaves from freeze-damaged leaves. However, the false negatives mainly resulted from asymptomatic-infected leaves being classified as healthy. Analyses of average vegetation indices of freeze-damaged, healthy (non-infected), asymptomatic-infected, and symptomatic-infected leaves indicated that the normalized difference vegetation index and the simple ratio index were statistically different
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| 650 |
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|a Journal Article
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| 700 |
1 |
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|a Ehsani, Reza
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Inch, Sharon A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ploetz, Randy C
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 96(2012), 11 vom: 01. Nov., Seite 1683-1689
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
1 |
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|g volume:96
|g year:2012
|g number:11
|g day:01
|g month:11
|g pages:1683-1689
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| 856 |
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|u http://dx.doi.org/10.1094/PDIS-01-12-0030-RE
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|d 96
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