Paper · 1990 · Plant Disease

Impact of Leaf Spot Diseases on Yield and Quality of Alfalfa in North Carolina

C. Lee Campbell

7
claims
15
verbatim quotes
22
citations
2
research areas
—
Not open access

Abstract

(...) Dry matter yield was 5.3-34.8% less in unsprayed plots than in sprayed plots at the five harvests in 1986 and 12.9-37.2% less in 1987. Annual differences in yield between sprayed and unsprayed plots were 18.6% (1.69 Mg/ha) in 1986 and 24.8% (2.64 Mg/ha) in 1987. Percentages of total digestible nutrients and acid detergent fiber did not differ in alfalfa harvested from treated or untreated plots. Mean adjusted crude protein did not differ with respect to fungicide treatment or harvest in 1986 but was greater in unsprayed plots (22.1%) than in plots sprayed with fungicide (20.6%) in 1987

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Claims 7

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Unsprayed plots yielded 5.3-34.8% less dry matter at five 1986 harvests than sprayed plots.

Taxon
AlfalfaMedicago sativat0
Treatment
unsprayed plotse0
Outcome
Dry matter yielde0
Direction
lesse0
Value
5.3-34.8%e0
Qualifier
five harvests in 1986e0
Comparator
sprayed plotse0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“Alfalfa”

✓ located verbatim in the source · title, characters 53–60 · show in text ↑
e0

“Dry matter yield was 5.3-34.8% less in unsprayed plots than in sprayed plots at the five harvests in 1986”

✓ located verbatim in the source · abstract, characters 6–111 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Unsprayed plots yielded 12.9-37.2% less dry matter at 1987 harvests than sprayed plots.

Taxon
AlfalfaMedicago sativat0
Treatment
unsprayed plotse0
Outcome
Dry matter yielde0
Direction
lesse0
Value
12.9-37.2%e0
Qualifier
1987e0
Comparator
sprayed plotse0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“Alfalfa”

✓ located verbatim in the source · title, characters 53–60 · show in text ↑
e0

“Dry matter yield was 5.3-34.8% less in unsprayed plots than in sprayed plots at the five harvests in 1986 and 12.9-37.2% less in 1987”

✓ located verbatim in the source · abstract, characters 6–139 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Annual yield in unsprayed plots was 18.6% or 1.69 Mg/ha lower in 1986.

Taxon
AlfalfaMedicago sativat0
Treatment
unsprayed plotse0
Outcome
yielde0
Value
18.6% (1.69 Mg/ha)e0
Comparator
sprayede0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“Alfalfa”

✓ located verbatim in the source · title, characters 53–60 · show in text ↑
e0

“Annual differences in yield between sprayed and unsprayed plots were 18.6% (1.69 Mg/ha) in 1986”

✓ located verbatim in the source · abstract, characters 141–236 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Annual yield in unsprayed plots was 24.8% or 2.64 Mg/ha lower in 1987.

Taxon
AlfalfaMedicago sativat0
Treatment
unsprayed plotse0
Outcome
yielde0
Value
24.8% (2.64 Mg/ha)e0
Comparator
sprayede0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“Alfalfa”

✓ located verbatim in the source · title, characters 53–60 · show in text ↑
e0

“Annual differences in yield between sprayed and unsprayed plots were 18.6% (1.69 Mg/ha) in 1986 and 24.8% (2.64 Mg/ha) in 1987”

✓ located verbatim in the source · abstract, characters 141–267 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Total digestible nutrients and acid detergent fiber did not differ between treated and untreated alfalfa.

Taxon
AlfalfaMedicago sativat0
Treatment
treatede0
Outcome
Percentages of total digestible nutrients and acid detergent fibere0
Direction
did not differe0
Comparator
untreated plotse0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“Alfalfa”

✓ located verbatim in the source · title, characters 53–60 · show in text ↑
e0

“Percentages of total digestible nutrients and acid detergent fiber did not differ in alfalfa harvested from treated or untreated plots”

✓ located verbatim in the source · abstract, characters 269–403 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Mean adjusted crude protein did not differ by fungicide treatment or harvest in 1986.

Taxon
AlfalfaMedicago sativat0
Treatment
fungicide treatmente0
Outcome
Mean adjusted crude proteine0
Direction
did not differe0

Not reportedComparator

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“Alfalfa”

✓ located verbatim in the source · title, characters 53–60 · show in text ↑
e0

“Mean adjusted crude protein did not differ with respect to fungicide treatment or harvest in 1986”

✓ located verbatim in the source · abstract, characters 405–502 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Mean adjusted crude protein was greater in unsprayed plots than sprayed plots in 1987.

Taxon
AlfalfaMedicago sativat0
Treatment
unsprayed plotse0
Outcome
Mean adjusted crude proteine1
Direction
greatere0
Value
22.1%e0
Qualifier
20.6%e0
Comparator
plots sprayed with fungicidee0

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

Medicago sativa
Medicago sativa · TaxonDrepanostoma · CC BY 4.0 · iNaturalist ↗

Verbatim

t0

“Alfalfa”

✓ located verbatim in the source · title, characters 53–60 · show in text ↑
e0

“was greater in unsprayed plots (22.1%) than in plots sprayed with fungicide (20.6%) in 1987”

✓ located verbatim in the source · abstract, characters 507–598 · show in text ↑
e1

“Mean adjusted crude protein did not differ with respect to fungicide treatment or harvest in 1986”

✓ located verbatim in the source · abstract, characters 405–502 · show in text ↑

fungicide · quality: protein · Medicago sativa (alfalfa)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 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.