Claim · model-written summary
AG-3 and AG-5 were nonpathogenic on 8-week-old sugar beet roots, with rot indices ≤1.
- Taxon
- sugar beet
Beta vulgaris subsp. vulgarise0 - Organ / stage
- 8-week-old sugar beet rootse0
- Treatment
- inoculatede0
- Outcome
- root rot indicese0
- Value
- ≤1e0
Not reportedMaterialGeneCompoundInteractorInteractor roleSecond interactorSecond interactor roleComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The same isolates were nonpathogenic when inoculated on 8-week-old sugar beet roots (root rot indices were ≤1 [0 to 7 scale])”
Title
Characterization and Pathogenicity of Thanatephorus cucumeris from Sugar Beet in Minnesota
Carol E. Windels; Rita A. Kuznia; Jack Call Plant Disease 1997. doi:10.1094/pdis.1997.81.3.245
Other claims from this paper (17)
- Observation T. cucumeris hymenia occurred on sugar beet petioles in 1993.
- Observation No disease appeared on sugar beet leaves, crowns or roots.
- Observation Twenty-eight of 33 sugar beet isolates were R. solani AG-3.
- Observation Five sugar beet isolates were AG-5.
- Intervention effect AG-3 and AG-5 isolates ranged from nonpathogenic to moderately pathogenic on sugar beet seedlings, with 49 to 95% stands.
- Observation All AG-3 isolates formed sclerotia on sugar beet roots.
- Observation No AG-5 isolates formed sclerotia on sugar beet roots.
- Intervention effect At 10°C potato sprout disease indices were low and did not differ significantly among isolates and control.
- Observation At 10°C AG-3 potato disease index averaged 0.9.
- Observation At 10°C AG-5 potato disease index averaged 0.5.
- Observation At 10°C control potato disease index averaged 0.5.
- Observation AG-3 but no AG-5 formed sclerotia on potato seed pieces.
- Observation At 25°C potato sprout disease indices were low, averaging 0.4 in both experiments.
- Intervention effect Four AG-3 isolates produced significantly higher disease indices than potato controls at 25°C.
- Intervention effect Three AG-5 isolates produced significantly higher disease indices than potato controls at 25°C.
- Observation No sclerotia were observed at 25°C.
- Observation T. cucumeris sexual reproduction and inoculum production occurred on nonhost sugar beet.