Paper · 2014 · International Journal of Ecology and Environmental Sciences

Allelopathic Effects of Wild Barley (Hordeum spontaneum Koch) Extracts on Growth of Five Wheat (Triticum aestivum L.) Cultivars

Didi Ali Hamidi; H. Ghadiri; M. J. Bahrani; et al.

8
claims
23
verbatim quotes
1
citations
2
research areas
—
Not open access

Abstract

Greenhouse studies were conducted to examine the effects of wild barley shoot and root extracts on five wheat cultivars including Shiraz, Chamran, Darab-2, Cross-Azadi, and Falat growth. After 12 weeks, plants were harvested and leaf area, dry weight, and stem length were determined. Shoot extracts significantly reduced dry weight in Darab-2 and Cross-Azadi cultivars. Plant height was significantly reduced at shoot extract concentrations of 6 and 9 g/L in Chamran and Cross-Azadi cultivars. All concentrations of root extract significantly reduced leaf area in Falat cultivar. Most severe inhibitory effects of root extract on dry weight and plant height were observed in Cross-Azadi and Falat cultivars, respectively. The results showed that wild barley has allelopathic potential to reduce wheat growth and that wild barley shoot extract exerted more allelopathic effects on wheat growth than that of root.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 8

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Wild barley shoot extract significantly reduced dry weight of Darab-2 wheat.

Material
Darab-2e0
Treatment
Shoot extractse0
Interactor
wild barleyHordeum vulgare subsp. spontaneume1weed
Outcome
dry weighte0
Direction
reducede0

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 ↗
Hordeum vulgare subsp. spontaneum
Hordeum vulgare subsp. spontaneum · Interactor · picture of the speciesJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 89–117 · show in text ↑
e0

“Shoot extracts significantly reduced dry weight in Darab-2 and Cross-Azadi cultivars.”

✓ located verbatim in the source · abstract, characters 285–370 · show in text ↑
e1

“wild barley shoot and root extracts”

✓ located verbatim in the source · abstract, characters 60–95 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Wild barley shoot extract significantly reduced dry weight of Cross-Azadi wheat.

Material
Cross-Azadie0
Treatment
Shoot extractse0
Interactor
wild barleyHordeum vulgare subsp. spontaneume1weed
Outcome
dry weighte0
Direction
reducede0

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 ↗
Hordeum vulgare subsp. spontaneum
Hordeum vulgare subsp. spontaneum · Interactor · picture of the speciesJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 89–117 · show in text ↑
e0

“Shoot extracts significantly reduced dry weight in Darab-2 and Cross-Azadi cultivars.”

✓ located verbatim in the source · abstract, characters 285–370 · show in text ↑
e1

“wild barley shoot and root extracts”

✓ located verbatim in the source · abstract, characters 60–95 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Shoot extract at 6 and 9 g/L significantly reduced Chamran plant height.

Material
Chamrane0
Treatment
shoot extract concentrations of 6 and 9 g/Le0
Interactor
wild barleyHordeum vulgare subsp. spontaneume1weed
Outcome
Plant heighte0
Direction
reducede0

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 ↗
Hordeum vulgare subsp. spontaneum
Hordeum vulgare subsp. spontaneum · Interactor · picture of the speciesJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 89–117 · show in text ↑
e0

“Plant height was significantly reduced at shoot extract concentrations of 6 and 9 g/L in Chamran and Cross-Azadi cultivars.”

✓ located verbatim in the source · abstract, characters 371–494 · show in text ↑
e1

“wild barley shoot and root extracts”

✓ located verbatim in the source · abstract, characters 60–95 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Shoot extract at 6 and 9 g/L significantly reduced Cross-Azadi plant height.

Material
Cross-Azadie0
Treatment
shoot extract concentrations of 6 and 9 g/Le0
Interactor
wild barleyHordeum vulgare subsp. spontaneume1weed
Outcome
Plant heighte0
Direction
reducede0

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 ↗
Hordeum vulgare subsp. spontaneum
Hordeum vulgare subsp. spontaneum · Interactor · picture of the speciesJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 89–117 · show in text ↑
e0

“Plant height was significantly reduced at shoot extract concentrations of 6 and 9 g/L in Chamran and Cross-Azadi cultivars.”

✓ located verbatim in the source · abstract, characters 371–494 · show in text ↑
e1

“wild barley shoot and root extracts”

✓ located verbatim in the source · abstract, characters 60–95 · show in text ↑
Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

Every tested root-extract concentration significantly reduced Falat leaf area.

Material
Falate0
Treatment
All concentrations of root extracte0
Interactor
wild barleyHordeum vulgare subsp. spontaneume1weed
Outcome
leaf areae0
Direction
reducede0

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 ↗
Hordeum vulgare subsp. spontaneum
Hordeum vulgare subsp. spontaneum · Interactor · picture of the speciesJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 89–117 · show in text ↑
e0

“All concentrations of root extract significantly reduced leaf area in Falat cultivar.”

✓ located verbatim in the source · abstract, characters 495–580 · show in text ↑
e1

“wild barley shoot and root extracts”

✓ located verbatim in the source · abstract, characters 60–95 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Root extract had its strongest inhibition of dry weight in Cross-Azadi.

Material
Cross-Azadie0
Treatment
root extracte0
Interactor
wild barleyHordeum vulgare subsp. spontaneume1weed
Outcome
dry weighte0
Direction
Most severe inhibitory effectse0

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 ↗
Hordeum vulgare subsp. spontaneum
Hordeum vulgare subsp. spontaneum · Interactor · picture of the speciesJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 89–117 · show in text ↑
e0

“Most severe inhibitory effects of root extract on dry weight and plant height were observed in Cross-Azadi and Falat cultivars, respectively.”

✓ located verbatim in the source · abstract, characters 581–722 · show in text ↑
e1

“wild barley shoot and root extracts”

✓ located verbatim in the source · abstract, characters 60–95 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Root extract had its strongest inhibition of plant height in Falat.

Material
Falate0
Treatment
root extracte0
Interactor
wild barleyHordeum vulgare subsp. spontaneume1weed
Outcome
plant heighte0
Direction
Most severe inhibitory effectse0

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 ↗
Hordeum vulgare subsp. spontaneum
Hordeum vulgare subsp. spontaneum · Interactor · picture of the speciesJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 89–117 · show in text ↑
e0

“Most severe inhibitory effects of root extract on dry weight and plant height were observed in Cross-Azadi and Falat cultivars, respectively.”

✓ located verbatim in the source · abstract, characters 581–722 · show in text ↑
e1

“wild barley shoot and root extracts”

✓ located verbatim in the source · abstract, characters 60–95 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Wild barley shoot extract was more inhibitory to wheat growth than root extract.

Treatment
wild barley shoot extracte0
Interactor
wild barleyHordeum vulgare subsp. spontaneume0weed
Outcome
wheat growthe0
Direction
more allelopathic effectse0
Comparator
roote0

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 ↗
Hordeum vulgare subsp. spontaneum
Hordeum vulgare subsp. spontaneum · Interactor · picture of the speciesJackyM59 · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Wheat (Triticum aestivum L.)”

✓ located verbatim in the source · title, characters 89–117 · show in text ↑
e0

“wild barley shoot extract exerted more allelopathic effects on wheat growth than that of root”

✓ located verbatim in the source · abstract, characters 818–911 · show in text ↑

Hordeum vulgare subsp. spontaneum · growth · Triticum aestivum (wheat)Positive and negative results

3 papers: 1 positive, 2 negative or no effect

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

  1. positive
  2. no effect
See all 3 papers →

botanical · growth · Triticum aestivum (wheat)Positive and negative results

435 papers: 206 positive, 229 negative or no effect

228 papers in the same direction as this paper · 206 in the opposite direction

  1. positive
  2. positive
  3. positive

431 papers more in this group

See all 435 papers →

botanical · Hordeum vulgare subsp. spontaneum · Triticum aestivum (wheat)Results agree

3 papers: 0 positive, 3 negative or no effect

2 papers in the same direction as this paper

  1. negative
  2. negative
See all 3 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.