Paper · 2018 · Plant Health Progress

Quantifying the Effects of Fungicides and Tillage on Cercospora sojina Severity and Yield of Soybean

Alemu Mengistu; Heather M. Kelly; Prakash R. Arelli; et al.

11
claims
22
verbatim quotes
17
citations
2
research areas
—
Not open access

Abstract

A field study was conducted in 2014 through 2016 at the University of Tennessee Research and Education Center, Milan, TN, to determine fungicide effects on frogeye leaf spot (FLS) caused by Cercospora sojina and to determine disease severity and yield under no-till and tillage. Each plot was visually rated for FLS severity based on the percent leaf area covered from 0 to 100%. The result showed that tillage did not affect severity of the disease or yield. However, there were significant effects from fungicide, year-to-year effects, and fungicide × year interactions. Among the three years, disease severity in 2016 was greater than in 2014 and 2015. Among the six fungicides, Topsin, Topguard, Quadris TOP SBX, and Priaxor significantly (P ≤ 0.05) reduced maximum disease severity in 2016. All fungicide applications improved yield relative to the untreated check. Topsin and Quadris TOP SBX, however, had consistently the highest percent yield increases. These results suggest that not all fungicides that reduced FLS severity equally protected yield, indicating that yield and environmental conditions need to be considered when making appropriate fungicide recommendations in tilled and no-till systems.

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Claims 11

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Tillage did not affect disease severity or yield.

Taxon
SoybeanGlycine maxt0
Treatment
tillagee0
Outcome
severity of the disease or yielde0
Direction
did not affecte0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“tillage did not affect severity of the disease or yield”

✓ located verbatim in the source · abstract, characters 403–458 · show in text ↑
t0

“Soybean”

✓ located verbatim in the source · title, characters 93–100 · show in text ↑
Observationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Fungicide, year, and their interaction significantly affected study responses.

Taxon
SoybeanGlycine maxt0
Outcome
effects from fungicide, year-to-year effects, and fungicide × year interactionse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“there were significant effects from fungicide, year-to-year effects, and fungicide × year interactions”

✓ located verbatim in the source · abstract, characters 469–571 · show in text ↑
t0

“Soybean”

✓ located verbatim in the source · title, characters 93–100 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Disease severity in 2016 exceeded 2014 and 2015.

Taxon
SoybeanGlycine maxt0
Outcome
disease severitye0
Direction
greatere0
Comparator
2014 and 2015e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“disease severity in 2016 was greater than in 2014 and 2015”

✓ located verbatim in the source · abstract, characters 596–654 · show in text ↑
t0

“Soybean”

✓ located verbatim in the source · title, characters 93–100 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Topsin significantly reduced maximum disease severity in 2016.

Taxon
SoybeanGlycine maxt0
Treatment
Topsine0
Outcome
maximum disease severitye0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Topsin, Topguard, Quadris TOP SBX, and Priaxor significantly (P ≤ 0.05) reduced maximum disease severity in 2016”

✓ located verbatim in the source · abstract, characters 682–794 · show in text ↑
t0

“Soybean”

✓ located verbatim in the source · title, characters 93–100 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Topguard significantly reduced maximum disease severity in 2016.

Taxon
SoybeanGlycine maxt0
Treatment
Topguarde0
Outcome
maximum disease severitye0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Topsin, Topguard, Quadris TOP SBX, and Priaxor significantly (P ≤ 0.05) reduced maximum disease severity in 2016”

✓ located verbatim in the source · abstract, characters 682–794 · show in text ↑
t0

“Soybean”

✓ located verbatim in the source · title, characters 93–100 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Quadris TOP SBX significantly reduced maximum disease severity in 2016.

Taxon
SoybeanGlycine maxt0
Treatment
Quadris TOP SBXe0
Outcome
maximum disease severitye0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Topsin, Topguard, Quadris TOP SBX, and Priaxor significantly (P ≤ 0.05) reduced maximum disease severity in 2016”

✓ located verbatim in the source · abstract, characters 682–794 · show in text ↑
t0

“Soybean”

✓ located verbatim in the source · title, characters 93–100 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Priaxor significantly reduced maximum disease severity in 2016.

Taxon
SoybeanGlycine maxt0
Treatment
Priaxore0
Outcome
maximum disease severitye0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Topsin, Topguard, Quadris TOP SBX, and Priaxor significantly (P ≤ 0.05) reduced maximum disease severity in 2016”

✓ located verbatim in the source · abstract, characters 682–794 · show in text ↑
t0

“Soybean”

✓ located verbatim in the source · title, characters 93–100 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

All fungicide applications improved soybean yield versus untreated plots.

Taxon
SoybeanGlycine maxt0
Treatment
fungicide applicationse0
Outcome
yielde0
Direction
improvede0
Comparator
untreated checke0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“All fungicide applications improved yield relative to the untreated check.”

✓ located verbatim in the source · abstract, characters 796–870 · show in text ↑
t0

“Soybean”

✓ located verbatim in the source · title, characters 93–100 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Topsin and Quadris TOP SBX consistently had the highest yield increases.

Taxon
SoybeanGlycine maxt0
Outcome
percent yield increasese0
Direction
higheste0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“Topsin and Quadris TOP SBX, however, had consistently the highest percent yield increases.”

✓ located verbatim in the source · abstract, characters 871–961 · show in text ↑
t0

“Soybean”

✓ located verbatim in the source · title, characters 93–100 · show in text ↑
Associationauthor interpretationoriginal resultmixedmeasured

Claim · model-written summary

Fungicides reducing disease severity did not equally protect yield.

Taxon
SoybeanGlycine maxt0
Treatment
fungicidese0
Outcome
yielde0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“not all fungicides that reduced FLS severity equally protected yield”

✓ located verbatim in the source · abstract, characters 989–1057 · show in text ↑
t0

“Soybean”

✓ located verbatim in the source · title, characters 93–100 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

Fungicide recommendations should account for yield and environmental conditions.

Taxon
SoybeanGlycine maxt0
Outcome
yield and environmental conditions need to be considerede0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Glycine max
Glycine max · TaxonPublic domain · Wikimedia Commons ↗

Verbatim

e0

“yield and environmental conditions need to be considered when making appropriate fungicide recommendations in tilled and no-till systems”

✓ located verbatim in the source · abstract, characters 1075–1211 · show in text ↑
t0

“Soybean”

✓ located verbatim in the source · title, characters 93–100 · show in text ↑

tillage · disease · Glycine max (soybean)Positive and negative results

16 papers: 6 positive, 10 negative or no effect

9 papers in the same direction as this paper · 6 in the opposite direction

  1. positive
  2. positive
  3. positive

12 papers more in this group

See all 16 papers →

fungicide · yield · Glycine max (soybean)Positive and negative results

109 papers: 77 positive, 32 negative or no effect

76 papers in the same direction as this paper · 31 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. positive

105 papers more in this group

See all 109 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.