Paper · 2026 · International Journal of Vegetable Science

Radiation-modified carrageenan and vermicompost tea improve stress tolerance and yield of tomato under wet cropping season

Jayryl D. Enano; Marilyn B. Balderas

9
claims
18
verbatim quotes
0
citations
3
research areas
—
Not open access

Abstract

Reducing the negative impact of synthetic fertilizers and pesticides while meeting the market demand is a desirable practice in tomato cultivation. This study investigated the effects of radiation-modified carrageenan and aerated vermicompost tea on tomato disease tolerance, growth, and yields. The field experiment was conducted during the wet cropping season. Experimental plots measured 4 m × 4 m were arranged in a Randomized Complete Block Design with seven treatments and three replicates. The Least Significant Difference test at a 5% level was used. Varying levels of radiation-modified carrageenan were combined with aerated vermicompost tea. The result showed that 40,000 ppm carrageenan+vermicompost tea revealed the lowest disease incidence at 30 days after transplanting, and had the highest survival rate. The 1:1 (v:v) vermicompost tea to water obtained the tallest tomatoes and more primary branches, while the 40,000 ppm carrageenan+vermicompost tea induced an earlier flowering. Optimal performance was achieved with 20,000 ppm carrageenan, the earliest harvest date, the highest total yield, and the highest return on investment. These findings show that radiation-modified carrageenan and aerated vermicompost tea enhanced tomato productivity and can increase farmers’ income as a viable alternative to synthetic inputs.

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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 9

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 40,000 ppm carrageenan+vermicompost tea treatment gave the lowest disease incidence at 30 days after transplanting.

Treatment
40,000 ppm carrageenan+vermicompost teae1
Outcome
disease incidencee1
Direction
loweste1
Qualifier
at 30 days after transplantinge1
Setting
wet cropping seasont1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“40,000 ppm carrageenan+vermicompost tea revealed the lowest disease incidence at 30 days after transplanting, and had the highest survival rate”

✓ located verbatim in the source · abstract, characters 676–819 · show in text ↑
t1

“yield of tomato under wet cropping season”

✓ located verbatim in the source · title, characters 81–122 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 40,000 ppm carrageenan+vermicompost tea treatment gave the highest tomato survival rate.

Treatment
40,000 ppm carrageenan+vermicompost teae1
Outcome
survival ratee1
Direction
higheste1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“40,000 ppm carrageenan+vermicompost tea revealed the lowest disease incidence at 30 days after transplanting, and had the highest survival rate”

✓ located verbatim in the source · abstract, characters 676–819 · show in text ↑
t1

“yield of tomato under wet cropping season”

✓ located verbatim in the source · title, characters 81–122 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 1:1 (v:v) vermicompost tea to water treatment gave the tallest tomato plants.

Treatment
1:1 (v:v) vermicompost tea to watere2
Outcome
tallest tomatoese2
Direction
talleste2

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e2

“The 1:1 (v:v) vermicompost tea to water obtained the tallest tomatoes and more primary branches”

✓ located verbatim in the source · abstract, characters 821–916 · show in text ↑
t1

“yield of tomato under wet cropping season”

✓ located verbatim in the source · title, characters 81–122 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 1:1 (v:v) vermicompost tea to water treatment gave more primary branches on tomato.

Treatment
1:1 (v:v) vermicompost tea to watere2
Outcome
primary branchese2
Direction
moree2

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e2

“The 1:1 (v:v) vermicompost tea to water obtained the tallest tomatoes and more primary branches”

✓ located verbatim in the source · abstract, characters 821–916 · show in text ↑
t1

“yield of tomato under wet cropping season”

✓ located verbatim in the source · title, characters 81–122 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 40,000 ppm carrageenan+vermicompost tea treatment induced earlier flowering of tomato.

Treatment
40,000 ppm carrageenan+vermicompost teae3
Outcome
floweringe3
Direction
earliere3

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e3

“while the 40,000 ppm carrageenan+vermicompost tea induced an earlier flowering”

✓ located verbatim in the source · abstract, characters 918–996 · show in text ↑
t1

“yield of tomato under wet cropping season”

✓ located verbatim in the source · title, characters 81–122 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 20,000 ppm carrageenan treatment gave the earliest tomato harvest date.

Treatment
20,000 ppm carrageenane4
Outcome
earliest harvest datee4
Direction
earlieste4

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e4

“Optimal performance was achieved with 20,000 ppm carrageenan, the earliest harvest date, the highest total yield, and the highest return on investment”

✓ located verbatim in the source · abstract, characters 998–1148 · show in text ↑
t1

“yield of tomato under wet cropping season”

✓ located verbatim in the source · title, characters 81–122 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 20,000 ppm carrageenan treatment gave the highest total tomato yield.

Treatment
20,000 ppm carrageenane4
Outcome
total yielde4
Direction
higheste4

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e4

“Optimal performance was achieved with 20,000 ppm carrageenan, the earliest harvest date, the highest total yield, and the highest return on investment”

✓ located verbatim in the source · abstract, characters 998–1148 · show in text ↑
t1

“yield of tomato under wet cropping season”

✓ located verbatim in the source · title, characters 81–122 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 20,000 ppm carrageenan treatment gave the highest return on investment for tomato.

Treatment
20,000 ppm carrageenane4
Outcome
return on investmente4
Direction
higheste4

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e4

“Optimal performance was achieved with 20,000 ppm carrageenan, the earliest harvest date, the highest total yield, and the highest return on investment”

✓ located verbatim in the source · abstract, characters 998–1148 · show in text ↑
t1

“yield of tomato under wet cropping season”

✓ located verbatim in the source · title, characters 81–122 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors conclude that radiation-modified carrageenan and aerated vermicompost tea are a viable alternative to synthetic inputs for tomato.

Outcome
viable alternative to synthetic inputse5

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e5

“These findings show that radiation-modified carrageenan and aerated vermicompost tea enhanced tomato productivity and can increase farmers’ income as a viable alternative to synthetic inputs”

✓ located verbatim in the source · abstract, characters 1150–1340 · show in text ↑
t1

“yield of tomato under wet cropping season”

✓ located verbatim in the source · title, characters 81–122 · show in text ↑

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668 papers: 567 positive, 101 negative or no effect

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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.