Paper · 2021 · Alexandria Science Exchange Journal

Effect of Abscisic Acid, Salicylic Acid, Potassium Silicate, and Trichoderma harzianum As Biocontrol Agent to Induce the Tomato Resistance Against Early Blight Disease Caused by Alternaria solani

Ibrahim Adss; Ghoname. M. Amer; Shokry R. Bayoumy; et al.

18
claims
35
verbatim quotes
5
citations
4
research areas
✓
Open access · cc-by-nc-sa

Abstract

In the present study and under greenhouse conditions, tomato plants cv. Albium, grown in potted soil inoculated with the early blight fungus A. solani, were treated with abscisic acid (ABA), salicylic acid (SA), and potassium silicate (PS) abiotic inducers, singly, and in combination with the biotic inducer Trichoderma harzianum. The different tested inducers significantly decreased the intensity (severity) of early blight disease on tomato, as well as some growth characteristics, photosynthetic capacity, defense-related enzymes and expression analysis of the PR1, PR3 and PR5 genes using Real Time-q PCR. PS+ Trichoderma showedthe lowest diseaseintensity, followed by ABA+ Trichoderma, and Trichoderma treatment had the highest disease intensity when compared to untreated inoculated control. PS + Trichoderma, ABA+ Trichoderma, and SA+ Trichoderma were also the most effective for the best growth characteristics (fresh shoot, dry shoot, fresh root, dry root weight, and total fruits weight/plant). Photosynthetic pigment content was significantly increased with all treatments by chemical inducer and T. harzianum compared with A. solani treatment. PS + Trichoderma was the most effective and significantly enhanced chlorophyll "A" and chlorophyll "B"content comparing with the A. solani treatment, while, the highest level of carotene content was observed with alt+ABA+ Trichoderma treatment at 2days post inoculation. Peroxidase (POD), polyphenol oxidase (PPO) and Phenylalanine Ammonia-Lyase (PAL) enzymes activity and PR1, PR2 and PR5 gene expressions were significantly increased in all treatments with chemical inducer comparing with the treatment by A.solani, In addition to the treatment by chemical inducer combined with Trichoderma were the most effective compared with chemical inducer alone. The maximum POD, PAL activities and PR1gene expression were observed with alt+PS + Trichoderma followed by alt+ABA+ Trichoderma while, PR2, PR5 gene expressions and POD activity reached the highest level with alt+PS+ Trichoderma followed by alt+SA+ Trichoderma and alt+ABA+ Trichoderma. Trichoderma was of the highest rate of the number of cfu in treatment with alt+PS+ Trichoderma with cfu was 5.9 x10, while the number of cfu in treatment with alt+ABA + Trichoderma was 3.77 x107 and the treatment with alt+SA + Trichoderma was 3.68 x107.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-sa. 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 18

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Tested inducers significantly reduced early blight severity in tomato.

Treatment
different tested inducerse0
Outcome
intensity (severity) of early blight diseasee0
Direction
decreasede0

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

e0

“The different tested inducers significantly decreased the intensity (severity) of early blight disease on tomato”

✓ located verbatim in the source · abstract, characters 332–444 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PS+ Trichoderma ranked lowest for disease intensity.

Treatment
PS+ Trichodermae0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
diseaseintensitye0
Direction
loweste0
Comparator
untreated inoculated controle0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“PS+ Trichoderma showedthe lowest diseaseintensity, followed by ABA+ Trichoderma, and Trichoderma treatment had the highest disease intensity when compared to untreated inoculated control”

✓ located verbatim in the source · abstract, characters 612–798 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ABA+ Trichoderma ranked followed by for disease intensity.

Treatment
ABA+ Trichodermae0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
disease intensitye0
Direction
followed bye0
Comparator
untreated inoculated controle0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“PS+ Trichoderma showedthe lowest diseaseintensity, followed by ABA+ Trichoderma, and Trichoderma treatment had the highest disease intensity when compared to untreated inoculated control”

✓ located verbatim in the source · abstract, characters 612–798 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Trichoderma treatment ranked highest for disease intensity.

Treatment
Trichoderma treatmente0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
disease intensitye0
Direction
higheste0
Comparator
untreated inoculated controle0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“PS+ Trichoderma showedthe lowest diseaseintensity, followed by ABA+ Trichoderma, and Trichoderma treatment had the highest disease intensity when compared to untreated inoculated control”

✓ located verbatim in the source · abstract, characters 612–798 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PS + Trichoderma was among the most effective treatments for growth and fruit weight.

Treatment
PS + Trichodermae0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
growth characteristicse0
Direction
most effectivee0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“PS + Trichoderma, ABA+ Trichoderma, and SA+ Trichoderma were also the most effective for the best growth characteristics (fresh shoot, dry shoot, fresh root, dry root weight, and total fruits weight/plant)”

✓ located verbatim in the source · abstract, characters 800–1005 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ABA+ Trichoderma was among the most effective treatments for growth and fruit weight.

Treatment
ABA+ Trichodermae0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
growth characteristicse0
Direction
most effectivee0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“PS + Trichoderma, ABA+ Trichoderma, and SA+ Trichoderma were also the most effective for the best growth characteristics (fresh shoot, dry shoot, fresh root, dry root weight, and total fruits weight/plant)”

✓ located verbatim in the source · abstract, characters 800–1005 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

SA+ Trichoderma was among the most effective treatments for growth and fruit weight.

Treatment
SA+ Trichodermae0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
growth characteristicse0
Direction
most effectivee0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“PS + Trichoderma, ABA+ Trichoderma, and SA+ Trichoderma were also the most effective for the best growth characteristics (fresh shoot, dry shoot, fresh root, dry root weight, and total fruits weight/plant)”

✓ located verbatim in the source · abstract, characters 800–1005 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Chemical inducer and T. harzianum treatments increased photosynthetic pigments relative to A. solani treatment.

Treatment
all treatments by chemical inducer and T. harzianume0
Interactor
A. solaniAlternaria solanie0pathogen
Second interactor
T. harzianumTrichoderma harzianume0biocontrol_agent
Outcome
Photosynthetic pigment contente0
Direction
increasede0
Comparator
A. solani treatmente0

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 ↗
Alternaria solani
Alternaria solani · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 us · Wikimedia Commons ↗
Trichoderma harzianum
Trichoderma harzianum · Second interactorUS Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Photosynthetic pigment content was significantly increased with all treatments by chemical inducer and T. harzianum compared with A. solani treatment”

✓ located verbatim in the source · abstract, characters 1007–1156 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

PS plus Trichoderma significantly enhanced chlorophyll A and B content.

Treatment
PS + Trichodermae0
Interactor
A. solaniAlternaria solanie0pathogen
Second interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
chlorophyll "A" and chlorophyll "B"contente0
Direction
enhancede0
Comparator
A. solani treatmente0

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 ↗
Alternaria solani
Alternaria solani · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 us · Wikimedia Commons ↗
Trichoderma
Trichoderma · Second interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“PS + Trichoderma was the most effective and significantly enhanced chlorophyll "A" and chlorophyll "B"content comparing with the A. solani treatment”

✓ located verbatim in the source · abstract, characters 1158–1306 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

ABA plus Trichoderma gave the highest carotene content two days after inoculation.

Treatment
alt+ABA+ Trichoderma treatmente0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
carotene contente0
Direction
higheste0
Qualifier
2days post inoculatione0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the highest level of carotene content was observed with alt+ABA+ Trichoderma treatment at 2days post inoculation”

✓ located verbatim in the source · abstract, characters 1315–1427 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Chemical inducers significantly increased Peroxidase (POD), polyphenol oxidase (PPO) and Phenylalanine Ammonia-Lyase (PAL) enzymes activity.

Treatment
all treatments with chemical inducere0
Interactor
A.solaniAlternaria solanie0pathogen
Outcome
Peroxidase (POD), polyphenol oxidase (PPO) and Phenylalanine Ammonia-Lyase (PAL) enzymes activitye0
Direction
increasede0
Comparator
treatment by A.solanie0

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 ↗
Alternaria solani
Alternaria solani · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Peroxidase (POD), polyphenol oxidase (PPO) and Phenylalanine Ammonia-Lyase (PAL) enzymes activity and PR1, PR2 and PR5 gene expressions were significantly increased in all treatments with chemical inducer comparing with the treatment by A.solani”

✓ located verbatim in the source · abstract, characters 1429–1674 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Chemical inducers significantly increased PR1, PR2 and PR5 gene expressions.

Treatment
all treatments with chemical inducere0
Interactor
A.solaniAlternaria solanie0pathogen
Outcome
PR1, PR2 and PR5 gene expressionse0
Direction
increasede0
Comparator
treatment by A.solanie0

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 ↗
Alternaria solani
Alternaria solani · InteractorClemson University - USDA Cooperative Extension Slide Series · CC BY 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Peroxidase (POD), polyphenol oxidase (PPO) and Phenylalanine Ammonia-Lyase (PAL) enzymes activity and PR1, PR2 and PR5 gene expressions were significantly increased in all treatments with chemical inducer comparing with the treatment by A.solani”

✓ located verbatim in the source · abstract, characters 1429–1674 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Chemical inducers combined with Trichoderma were more effective than chemical inducer alone.

Treatment
chemical inducer combined with Trichodermae0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
most effectivee0
Direction
most effectivee0
Comparator
chemical inducer alonee0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“the treatment by chemical inducer combined with Trichoderma were the most effective compared with chemical inducer alone”

✓ located verbatim in the source · abstract, characters 1691–1811 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PS plus Trichoderma gave maximum POD and PAL activities and PR1 expression.

Treatment
alt+PS + Trichodermae0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
POD, PAL activities and PR1gene expressione0
Direction
maximume0
Comparator
alt+ABA+ Trichodermae0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The maximum POD, PAL activities and PR1gene expression were observed with alt+PS + Trichoderma followed by alt+ABA+ Trichoderma”

✓ located verbatim in the source · abstract, characters 1813–1940 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

PS plus Trichoderma gave the highest PR2 and PR5 expression and POD activity.

Treatment
alt+PS+ Trichodermae0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
PR2, PR5 gene expressions and POD activitye0
Direction
higheste0
Comparator
alt+SA+ Trichoderma and alt+ABA+ Trichodermae0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“PR2, PR5 gene expressions and POD activity reached the highest level with alt+PS+ Trichoderma followed by alt+SA+ Trichoderma and alt+ABA+ Trichoderma”

✓ located verbatim in the source · abstract, characters 1948–2098 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

alt+PS+ Trichoderma yielded Trichoderma cfu of 5.9 x10.

Treatment
alt+PS+ Trichodermae0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
number of cfue0
Value
5.9 x10e0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Trichoderma was of the highest rate of the number of cfu in treatment with alt+PS+ Trichoderma with cfu was 5.9 x10, while the number of cfu in treatment with alt+ABA + Trichoderma was 3.77 x107 and the treatment with alt+SA + Trichoderma was 3.68 x107”

✓ located verbatim in the source · abstract, characters 2100–2352 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

alt+ABA + Trichoderma yielded Trichoderma cfu of 3.77 x107.

Treatment
alt+ABA + Trichodermae0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
number of cfue0
Value
3.77 x107e0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Trichoderma was of the highest rate of the number of cfu in treatment with alt+PS+ Trichoderma with cfu was 5.9 x10, while the number of cfu in treatment with alt+ABA + Trichoderma was 3.77 x107 and the treatment with alt+SA + Trichoderma was 3.68 x107”

✓ located verbatim in the source · abstract, characters 2100–2352 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

alt+SA + Trichoderma yielded Trichoderma cfu of 3.68 x107.

Treatment
alt+SA + Trichodermae0
Interactor
TrichodermaTrichodermae0biocontrol_agent
Outcome
number of cfue0
Value
3.68 x107e0

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 ↗
Trichoderma
Trichoderma · Interactor · picture of the genus (one of its species)US Department of Agriculture, Agricultural Research Service, Systematic Botany and Mycology Laboratory, [1] · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Trichoderma was of the highest rate of the number of cfu in treatment with alt+PS+ Trichoderma with cfu was 5.9 x10, while the number of cfu in treatment with alt+ABA + Trichoderma was 3.77 x107 and the treatment with alt+SA + Trichoderma was 3.68 x107”

✓ located verbatim in the source · abstract, characters 2100–2352 · show in text ↑
t0

“tomato”

✓ located after whitespace/quote normalisation · title, characters 121–127 · show in text ↑

(+)-abscisic acid · disease · Solanum lycopersicum (tomato)Results differ

12 papers: 8 positive, 4 negative or no effect

7 papers in the same direction as this paper · 4 in the opposite direction

  1. negative
  2. negative
  3. negative

8 papers more in this group

See all 12 papers →

(+)-abscisic acid · growth · Solanum lycopersicum (tomato)Results differ

22 papers: 16 positive, 6 negative or no effect

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

  1. negative
  2. negative
  3. negative

18 papers more in this group

See all 22 papers →

Trichoderma · growth · Solanum lycopersicum (tomato)Results differ

53 papers: 50 positive, 3 negative or no effect

49 papers in the same direction as this paper · 3 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

49 papers more in this group

See all 53 papers →

salicylic acid · growth · Solanum lycopersicum (tomato)Results differ

61 papers: 58 positive, 3 negative or no effect

57 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. negative
  3. no effect

57 papers more in this group

See all 61 papers →

silicate(4-) · growth · Solanum lycopersicum (tomato)Positive and negative results

7 papers: 6 positive, 1 negative or no effect

5 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

Trichoderma · disease · Solanum lycopersicum (tomato)Positive and negative results

27 papers: 25 positive, 2 negative or no effect

24 papers in the same direction as this paper · 2 in the opposite direction

  1. negative
  2. negative
  3. positive

23 papers more in this group

See all 27 papers →

silicate(4-) · physiology: antioxidant enzymes · Solanum lycopersicum (tomato)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

(+)-abscisic acid · quality: phytochemicals · Solanum lycopersicum (tomato)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
See all 4 papers →

8 of 14 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.