Paper · 2024 · Agriculture

Crop Density and Sowing Timing Effect on Tan Spot Occurrence in Spring Wheat

Agnė Lukošiūtė-Stasiukonienė; Mohammad Almogdad; Roma Semaškienė; et al.

5
claims
10
verbatim quotes
3
citations
2
research areas
✓
Open access · cc-by

Abstract

Tan spot (Pyrenophora tritici-repentis) is presenting a persistent challenge to the plant health and yield of all wheat-growing regions. This research is focused on tan spot disease management in spring wheat when planted at three distinct times and with three different seeding rates without the use of fungicides. Across all years, higher seed rates (500 and 600 seeds per m2) generally resulted in lower tan spot intensity compared to the lower seed rate (400 seeds per m2). Significant differences in tan spot intensity were observed across seed rates at all sowing times. In 2021, the percentage of the AUDPC was significantly higher in the late sowing time (324.58%), with about a 2-fold difference compared with the early (167.48%) and optimal sowing time (191.80%). This suggests that delayed sowing significantly exacerbates disease occurrence. The combined effect of sowing time and year on the AUDPC was notably significant. The AUDPC of the tan spot in all seed rates was the highest in the late sowing time plots in comparison to the ideal and initial planting dates plots. Our results demonstrate how important seed rate and sowing timing are in determining the degree of tan spot in spring wheat. Growing crop methods may be improved by taking these elements into account to better control tan spots. More agricultural methods and environmental aspects should be investigated in future studies to create all-encompassing tan spot control plans.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Higher seeding rates generally lowered tan spot intensity relative to 400 seeds per m2.

Taxon
spring wheatTriticum aestivumt0
Treatment
500 and 600 seeds per m2e0
Outcome
tan spot intensitye0
Direction
lowere0
Comparator
400 seeds per m2e0

Not reportedInteractor

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Across all years, higher seed rates (500 and 600 seeds per m2) generally resulted in lower tan spot intensity compared to the lower seed rate (400 seeds per m2).”

✓ located verbatim in the source · abstract, characters 316–477 · show in text ↑
t0

“Spring Wheat”

✓ located verbatim in the source · title, characters 64–76 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Tan spot intensity differed significantly among seed rates at every sowing time.

Taxon
spring wheatTriticum aestivumt0
Treatment
seed ratese0
Outcome
tan spot intensitye0

Not reportedDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Significant differences in tan spot intensity were observed across seed rates at all sowing times.”

✓ located verbatim in the source · abstract, characters 478–576 · show in text ↑
t0

“Spring Wheat”

✓ located verbatim in the source · title, characters 64–76 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

In 2021, late sowing had a significantly higher AUDPC percentage of 324.58% than early and optimal sowing.

Taxon
spring wheatTriticum aestivumt0
Treatment
late sowing timee0
Outcome
AUDPCe0
Direction
highere0
Value
324.58%e0
Qualifier
about a 2-fold differencee0
Comparator
earlye0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“In 2021, the percentage of the AUDPC was significantly higher in the late sowing time (324.58%), with about a 2-fold difference compared with the early (167.48%) and optimal sowing time (191.80%).”

✓ located verbatim in the source · abstract, characters 577–773 · show in text ↑
t0

“Spring Wheat”

✓ located verbatim in the source · title, characters 64–76 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Sowing time and year jointly affected AUDPC significantly.

Taxon
spring wheatTriticum aestivumt0
Treatment
sowing time and yeare0
Outcome
AUDPCe0

Not reportedDirection

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The combined effect of sowing time and year on the AUDPC was notably significant.”

✓ located verbatim in the source · abstract, characters 854–935 · show in text ↑
t0

“Spring Wheat”

✓ located verbatim in the source · title, characters 64–76 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Late-sown plots had the highest tan spot AUDPC at every seed rate.

Taxon
spring wheatTriticum aestivumt0
Treatment
late sowing timee0
Outcome
AUDPC of the tan spote0
Direction
higheste0
Comparator
ideal and initial planting datese0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The AUDPC of the tan spot in all seed rates was the highest in the late sowing time plots in comparison to the ideal and initial planting dates plots.”

✓ located verbatim in the source · abstract, characters 936–1086 · show in text ↑
t0

“Spring Wheat”

✓ located verbatim in the source · title, characters 64–76 · show in text ↑

sowing time · disease · Triticum aestivum (wheat)Positive and negative results

23 papers: 14 positive, 9 negative or no effect

8 papers in the same direction as this paper · 14 in the opposite direction

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  3. positive

19 papers more in this group

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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.