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20231227130501.0 |
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cr uuu---uuuuu |
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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-12-20-2680-RE
|2 doi
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|a pubmed24n1224.xml
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|a (DE-627)NLM323909299
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|a (NLM)33835827
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Sharma, Pratibha
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Sensitivity of Rhizoctonia solani Anastomosis Group 2-2 Isolates from Soybean and Sugar Beet to Selected SDHI and QoI Fungicides
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| 264 |
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|c 2021
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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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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 13.01.2022
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|a Date Revised 13.12.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Rhizoctonia solani causes root and stem diseases on soybean and sugar beet, and fungicides are commonly used to manage these diseases. Quinone outside inhibitor (QoI) fungicides (pyraclostrobin and azoxystrobin) have been used for in-furrow and postemergence application since 2000. Succinate dehydrogenase inhibitor (SDHI) fungicides (sedaxane, penthiopyrad, and fluxapyroxad) became popular seed treatments after their registration in Minnesota and North Dakota between 2012 and 2016. Periodic monitoring of sensitivity to these fungicides in R. solani anastomosis group (AG) 2-2 is important to detect potential shifts in sensitivity over time. R. solani AG 2-2 isolates (n = 35) collected from soybean and sugar beet in Minnesota and North Dakota were evaluated in vitro for sensitivity. Isolates were considered as baseline or nonbaseline for the above-mentioned fungicides based on previous potential exposure. The effective concentration (EC50) required to suppress radial fungal growth by 50% was determined. The mean EC50 values for sedaxane, penthiopyrad, fluxapyroxad, and pyraclostrobin were 0.1, 0.15, 0.16, and 0.25 (µg ml-1), respectively. The mean EC50 value for azoxystrobin for 22 isolates was 0.76 to 1.56 µg ml-1; and EC50 could not be determined for 13 isolates because of <50% inhibition at the highest concentrations used. The EC50 values for the QoI fungicides did not differ significantly between baseline and nonbaseline isolates. EC50 values for SDHI fungicides were significantly higher for isolates collected from soybean than from sugar beet, and isolates collected from both crops had similar EC50 values for pyraclostrobin. All SDHI fungicides and pyraclostrobin effectively suppressed R. solani isolates from soybean and sugar beet at low concentrations in vitro
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| 650 |
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4 |
|a Journal Article
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4 |
|a QoI
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4 |
|a Rhizoctonia solani
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4 |
|a SDHI
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4 |
|a crop type
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| 650 |
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|a damping off
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| 650 |
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4 |
|a fungi
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| 650 |
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|a fungicide sensitivity
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|a root rot
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| 650 |
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|a soybean
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| 650 |
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|a sugar beet
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| 650 |
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|a Fungicides, Industrial
|2 NLM
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| 650 |
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|a Quinones
|2 NLM
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| 650 |
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7 |
|a Sugars
|2 NLM
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| 650 |
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|a Succinic Acid
|2 NLM
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| 650 |
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7 |
|a AB6MNQ6J6L
|2 NLM
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| 650 |
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7 |
|a Succinate Dehydrogenase
|2 NLM
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| 650 |
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7 |
|a EC 1.3.99.1
|2 NLM
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| 700 |
1 |
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|a Malvick, Dean K
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chanda, Ashok K
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Plant disease
|d 1997
|g 105(2021), 11 vom: 01. Nov., Seite 3573-3579
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
1 |
8 |
|g volume:105
|g year:2021
|g number:11
|g day:01
|g month:11
|g pages:3573-3579
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| 856 |
4 |
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|u http://dx.doi.org/10.1094/PDIS-12-20-2680-RE
|3 Volltext
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|a SYSFLAG_A
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|a GBV_ILN_350
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|a AR
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|d 105
|j 2021
|e 11
|b 01
|c 11
|h 3573-3579
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