Paper · 2011 · Saudi Journal of Biological Sciences

Control of wild oat (Avena fatua) using some phenolic compounds I – Germination and some growth parameters

Omar A. Almaghrabi

11
claims
14
verbatim quotes
15
citations
3
research areas
✓
Open access · cc-by-nc-nd

Abstract

The percentage of germination of wild oat was significantly inhibited by increasing the concentrations of phenolic compounds. Ferulic acid was the most effective compound which completely inhibited germination at a concentration of 3.0 mM. At the same time, wheat and barley were slightly affected with different concentrations of the four phenolic compounds. The percentage of germination of wheat significantly decreased with increasing of ferulic acid reaching a maximum inhibition at 3.0 mM concentration. On the other hand, the germination of wheat was not affected with the other three phenolic compounds. The percentage of germination of barley was not affected with all phenolic compounds except for hydroxy phenolic acetic acid which has significant effect at a concentration of 3.0 mM. Salicylic acid significantly inhibited the growth parameters gradually in wild oat, wheat and barley. The shoot/root ratio was decreased in wild oat and barley, while the ratio increased in wheat. The growth parameters were completely inhibited at 3.0 mM of ferulic acid for both wild oat and wheat but slightly inhibited for barley. The shoot/root ratio was increased in all concentrations of ferulic acid except at 3.0 mM which was completely inhibited for both wild oat and wheat, while the ratio was increased in all treatments of ferulic acid in the case of barley. The growth parameters were highly significant and decreased in wild oat, wheat and barley with increasing the concentrations of hydroxybenzoic acid and hydroxyphenyl acetic acid. The shoot/root ratio was not changed in all concentrations except at 3.0 mM in the case of wild oat, the ratio was decreased at 2.0 and 3.0 mM in the case of wheat, while the ratio increased in most of hydroxybenzoic acid concentrations in the case of barley. The shoot/root ratio was increased with increasing of the hydroxyphenyl acetic acid concentrations.

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Claims 11

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Increasing phenolic concentration significantly inhibited wild oat germination.

Taxon
wild oate0
Treatment
increasing the concentrations of phenolic compoundse0
Outcome
percentage of germinatione0
Direction
inhibitede0

Not reportedComparator

Verbatim

e0

“The percentage of germination of wild oat was significantly inhibited by increasing the concentrations of phenolic compounds”

✓ located verbatim in the source · abstract, characters 0–124 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ferulic acid completely inhibited wild oat germination at 3.0 mM.

Taxon
wild oate1
Treatment
Ferulic acide0
Outcome
germinatione0
Direction
completely inhibitede0
Value
3.0 mMe0

Not reportedComparator

Verbatim

e0

“Ferulic acid was the most effective compound which completely inhibited germination at a concentration of 3.0 mM”

✓ located verbatim in the source · abstract, characters 126–238 · show in text ↑
e1

“germination of wild oat”

✓ located verbatim in the source · abstract, characters 18–41 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Wheat germination declined with increasing ferulic acid, maximally at 3.0 mM.

Treatment
increasing of ferulic acide0
Outcome
percentage of germinatione0
Direction
decreasede0
Value
3.0 mMe0

Not reportedComparator

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 percentage of germination of wheat significantly decreased with increasing of ferulic acid reaching a maximum inhibition at 3.0 mM concentration”

✓ located verbatim in the source · abstract, characters 360–508 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Three other phenolic compounds did not affect wheat germination.

Treatment
other three phenolic compoundse0
Outcome
germinatione0
Direction
not affectede0

Not reportedComparator

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 germination of wheat was not affected with the other three phenolic compounds”

✓ located verbatim in the source · abstract, characters 529–610 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Barley germination was significantly affected by hydroxy phenolic acetic acid at 3.0 mM.

Treatment
hydroxy phenolic acetic acide0
Outcome
percentage of germinatione0
Value
3.0 mMe0

Not reportedComparatorDirection

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The percentage of germination of barley was not affected with all phenolic compounds except for hydroxy phenolic acetic acid which has significant effect at a concentration of 3.0 mM”

✓ located verbatim in the source · abstract, characters 612–794 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Salicylic acid significantly inhibited wild oat growth parameters.

Taxon
wild oate0
Treatment
Salicylic acide0
Outcome
growth parameterse0
Direction
inhibitede0

Not reportedComparator

Verbatim

e0

“Salicylic acid significantly inhibited the growth parameters gradually in wild oat, wheat and barley”

✓ located verbatim in the source · abstract, characters 796–896 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Salicylic acid significantly inhibited wheat growth parameters.

Treatment
Salicylic acide0
Outcome
growth parameterse0
Direction
inhibitede0

Not reportedComparator

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

“Salicylic acid significantly inhibited the growth parameters gradually in wild oat, wheat and barley”

✓ located verbatim in the source · abstract, characters 796–896 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Salicylic acid significantly inhibited barley growth parameters.

Treatment
Salicylic acide0
Outcome
growth parameterse0
Direction
inhibitede0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Salicylic acid significantly inhibited the growth parameters gradually in wild oat, wheat and barley”

✓ located verbatim in the source · abstract, characters 796–896 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ferulic acid at 3.0 mM completely inhibited wild oat growth parameters.

Taxon
wild oate0
Treatment
3.0 mM of ferulic acide0
Outcome
growth parameterse0
Direction
completely inhibitede0

Not reportedComparator

Verbatim

e0

“The growth parameters were completely inhibited at 3.0 mM of ferulic acid for both wild oat and wheat”

✓ located verbatim in the source · abstract, characters 993–1094 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Ferulic acid at 3.0 mM completely inhibited wheat growth parameters.

Treatment
3.0 mM of ferulic acide0
Outcome
growth parameterse0
Direction
completely inhibitede0

Not reportedComparator

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 growth parameters were completely inhibited at 3.0 mM of ferulic acid for both wild oat and wheat”

✓ located verbatim in the source · abstract, characters 993–1094 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Ferulic acid only slightly inhibited barley growth parameters.

Treatment
3.0 mM of ferulic acide1
Outcome
growth parameterse2
Direction
slightly inhibitede0

Not reportedComparator

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

Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“but slightly inhibited for barley”

✓ located verbatim in the source · abstract, characters 1095–1128 · show in text ↑
e1

“3.0 mM of ferulic acid”

✓ located verbatim in the source · abstract, characters 1044–1066 · show in text ↑
e2

“The growth parameters were completely inhibited”

✓ located verbatim in the source · abstract, characters 993–1040 · show in text ↑

ferulic acid · growth · Triticum aestivum (wheat)Results differ

9 papers: 6 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

salicylic acid · growth · Hordeum vulgare (barley)Results differ

20 papers: 19 positive, 1 negative or no effect

19 in the opposite direction

  1. positive
  2. positive
  3. positive

16 papers more in this group

See all 20 papers →

salicylic acid · growth · Triticum aestivum (wheat)Results differ

104 papers: 95 positive, 9 negative or no effect

8 papers in the same direction as this paper · 95 in the opposite direction

  1. positive
  2. positive
  3. positive

100 papers more in this group

See all 104 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.