Paper · 2018 · Allelopathy Journal

Allelopathic effects of Tetraclinis articulata on barley, lettuce, radish and tomato

K. M'barek; I. Zribi; R. Haouala

8
claims
16
verbatim quotes
0
citations
1
research areas
✓
Open access

Abstract

We evaluated the allelopathic effects of leaf leachates, aqueous and organic extracts from Tetraclinis articulata on seed germination and seedling growth of lettuce, barley, radish and tomato. Leaf powder from T. articulata added to soil and leaf leachate irrigated soil were evaluated in pot assays. The leaf extracts and the leachate significantly decreased the germination of the target plants. Total inhibition of lettuce, tomato and radish seedling growth was observed at 40g/l and 500g/l concentrations for the extract and the leaf leachate, respectively. All organic extracts were very toxic at 6000 ppm. Soil incorporation of residues at 100 g/kg significantly decreased the root and shoot length of target species. The irrigation with leaf aqueous extracts was harmful for tomato, radish and lettuce and leachate was harmful only to lettuce and tomato. Quantitative and qualitative analyses of the extracts were done by gas chromatography-mass spectrometry to identify the allelochemicals present in leaves

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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 8

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Leaf extracts of Tetraclinis articulata significantly decreased seed germination of lettuce, barley, radish and tomato.

Treatment
leaf extractse2
Outcome
germinatione2
Direction
decreasede2

Not reportedComparator

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗
Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗
Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“We evaluated the allelopathic effects of leaf leachates, aqueous and organic extracts from Tetraclinis articulata on seed germination and seedling growth of lettuce, barley, radish and tomato”

✓ located verbatim in the source · abstract, characters 0–191 · show in text ↑
e2

“The leaf extracts and the leachate significantly decreased the germination of the target plants”

✓ located verbatim in the source · abstract, characters 301–396 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Leaf leachate of Tetraclinis articulata significantly decreased seed germination of lettuce, barley, radish and tomato.

Treatment
leachatee2
Outcome
germinatione2
Direction
decreasede2

Not reportedComparator

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗
Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗
Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“We evaluated the allelopathic effects of leaf leachates, aqueous and organic extracts from Tetraclinis articulata on seed germination and seedling growth of lettuce, barley, radish and tomato”

✓ located verbatim in the source · abstract, characters 0–191 · show in text ↑
e2

“The leaf extracts and the leachate significantly decreased the germination of the target plants”

✓ located verbatim in the source · abstract, characters 301–396 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Leaf extract at 40 g/l totally inhibited seedling growth of lettuce, tomato and radish.

Treatment
40g/le3
Outcome
seedling growthe3
Qualifier
Total inhibitione3

Not reportedComparatorDirection

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗
Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“We evaluated the allelopathic effects of leaf leachates, aqueous and organic extracts from Tetraclinis articulata on seed germination and seedling growth of lettuce, barley, radish and tomato”

✓ located verbatim in the source · abstract, characters 0–191 · show in text ↑
e3

“Total inhibition of lettuce, tomato and radish seedling growth was observed at 40g/l and 500g/l concentrations for the extract and the leaf leachate, respectively”

✓ located verbatim in the source · abstract, characters 398–560 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Leaf leachate at 500 g/l totally inhibited seedling growth of lettuce, tomato and radish.

Treatment
500g/le3
Outcome
seedling growthe3
Qualifier
Total inhibitione3

Not reportedComparatorDirection

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗
Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“We evaluated the allelopathic effects of leaf leachates, aqueous and organic extracts from Tetraclinis articulata on seed germination and seedling growth of lettuce, barley, radish and tomato”

✓ located verbatim in the source · abstract, characters 0–191 · show in text ↑
e3

“Total inhibition of lettuce, tomato and radish seedling growth was observed at 40g/l and 500g/l concentrations for the extract and the leaf leachate, respectively”

✓ located verbatim in the source · abstract, characters 398–560 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

All organic extracts of Tetraclinis articulata were very toxic at 6000 ppm to the target plants.

Treatment
organic extractse4
Outcome
very toxice4
Value
6000 ppme4

Not reportedComparatorDirection

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗
Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗
Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“We evaluated the allelopathic effects of leaf leachates, aqueous and organic extracts from Tetraclinis articulata on seed germination and seedling growth of lettuce, barley, radish and tomato”

✓ located verbatim in the source · abstract, characters 0–191 · show in text ↑
e4

“All organic extracts were very toxic at 6000 ppm”

✓ located verbatim in the source · abstract, characters 562–610 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Soil incorporation of residues at 100 g/kg significantly decreased root and shoot length of target species.

Treatment
Soil incorporation of residues at 100 g/kge5
Outcome
root and shoot lengthe5
Direction
decreasede5

Not reportedComparator

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗
Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗
Hordeum vulgare
Hordeum vulgare · TaxonJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e1

“We evaluated the allelopathic effects of leaf leachates, aqueous and organic extracts from Tetraclinis articulata on seed germination and seedling growth of lettuce, barley, radish and tomato”

✓ located verbatim in the source · abstract, characters 0–191 · show in text ↑
e5

“Soil incorporation of residues at 100 g/kg significantly decreased the root and shoot length of target species”

✓ located verbatim in the source · abstract, characters 612–722 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Irrigation with leaf aqueous extracts was harmful to tomato, radish and lettuce.

Treatment
irrigation with leaf aqueous extractse6
Outcome
harmfule6

Not reportedComparatorDirection

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

Raphanus sativus
Raphanus sativus · TaxonSelf, en:User:Jengod · Public domain · Wikimedia Commons ↗
Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗
Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“We evaluated the allelopathic effects of leaf leachates, aqueous and organic extracts from Tetraclinis articulata on seed germination and seedling growth of lettuce, barley, radish and tomato”

✓ located verbatim in the source · abstract, characters 0–191 · show in text ↑
e6

“The irrigation with leaf aqueous extracts was harmful for tomato, radish and lettuce and leachate was harmful only to lettuce and tomato”

✓ located verbatim in the source · abstract, characters 724–860 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Leachate irrigation was harmful only to lettuce and tomato.

Treatment
leachatee6
Outcome
harmfule6
Qualifier
onlye6

Not reportedComparatorDirection

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 ↗
Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“We evaluated the allelopathic effects of leaf leachates, aqueous and organic extracts from Tetraclinis articulata on seed germination and seedling growth of lettuce, barley, radish and tomato”

✓ located verbatim in the source · abstract, characters 0–191 · show in text ↑
e6

“The irrigation with leaf aqueous extracts was harmful for tomato, radish and lettuce and leachate was harmful only to lettuce and tomato”

✓ located verbatim in the source · abstract, characters 724–860 · show in text ↑

botanical · growth · Hordeum vulgare (barley)Positive and negative results

84 papers: 48 positive, 36 negative or no effect

35 papers in the same direction as this paper · 48 in the opposite direction

  1. positive
  2. positive
  3. positive

80 papers more in this group

See all 84 papers →

botanical · growth · Raphanus sativus (radish)Positive and negative results

152 papers: 53 positive, 99 negative or no effect

98 papers in the same direction as this paper · 53 in the opposite direction

  1. positive
  2. positive
  3. positive

148 papers more in this group

See all 152 papers →

botanical · growth · Lactuca sativa (garden lettuce)Positive and negative results

271 papers: 114 positive, 157 negative or no effect

156 papers in the same direction as this paper · 114 in the opposite direction

  1. positive
  2. positive
  3. positive

267 papers more in this group

See all 271 papers →

botanical · growth · Solanum lycopersicum (tomato)Positive and negative results

291 papers: 203 positive, 88 negative or no effect

87 papers in the same direction as this paper · 203 in the opposite direction

  1. positive
  2. positive
  3. positive

287 papers more in this group

See all 291 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.