Claim · model-written summary
Regression models with final disease rating or area under disease progress curve were significant, but explained only low to moderate variance in dry biomass yield (0.21 < R 2 < 0.60).
- Taxon
- switchgrass
Panicum virgatume2
- Treatment
- final disease ratinge6
- Interactor
- Puccinia emaculata
Puccinia emaculatat0pathogen - Outcome
- coefficients of determinatione6
- Value
- 0.21 < R 2 < 0.60e6
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e6“Linear regression models with the final disease rating, as well as with the area under disease progress curve in each year, were significant, but coefficients of determination were low to moderate (0.21 < R 2 < 0.60)”
e2“vegetatively propagated switchgrass cultivar Cloud Nine”
t0“Puccinia emaculata”
Title
Rust (Puccinia emaculata) Management and Impact on Biomass Yield in Switchgrass
K. L. Bowen; A. K. Hagan; H. B. Miller Plant Disease 2021. doi:10.1094/pdis-02-21-0271-re
Other claims from this paper (9)
- Intervention effect Azoxystrobin and myclobutanil were often equally and more effective than chlorothalonil at controlling rust in switchgrass.
- Intervention effect Superior rust control was obtained at shorter fungicide application intervals than at extended intervals in switchgrass.
- Association Year, product and application interval significantly affected dry biomass yield in switchgrass.
- Association The product × interval interaction significantly affected dry biomass yield in switchgrass.
- Intervention effect Dry biomass yield protection was significantly better with azoxystrobin and myclobutanil than with chlorothalonil or no fungicide.
- Association Model estimate: biomass declined by 3 to 5% for each 10% increment in rust-related leaf necrosis in switchgrass.
- Association If rust problems are not managed and rust-related leaf necrosis reaches 80% or more by 1 September in each of 4 years, switchgrass biomass yield may be reduced by 24 to 40%.
- Association Rust severity significantly differed among study years in switchgrass.
- Observation Dry biomass yield was greatest in 2016 and lowest in 2014 in switchgrass.