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.
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Claims 8
Claim · model-written summary
Wild barley shoot extract significantly reduced dry weight of Darab-2 wheat.
- Taxon
- Wheat
Triticum aestivumt0 - Material
- Darab-2e0
- Treatment
- Shoot extractse0
- Interactor
- wild barley
Hordeum vulgare subsp. spontaneume1weed - Outcome
- dry weighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

.jpg?width=500)
Verbatim
t0“Wheat (Triticum aestivum L.)”
e0“Shoot extracts significantly reduced dry weight in Darab-2 and Cross-Azadi cultivars.”
e1“wild barley shoot and root extracts”
Claim · model-written summary
Wild barley shoot extract significantly reduced dry weight of Cross-Azadi wheat.
- Taxon
- Wheat
Triticum aestivumt0 - Material
- Cross-Azadie0
- Treatment
- Shoot extractse0
- Interactor
- wild barley
Hordeum vulgare subsp. spontaneume1weed - Outcome
- dry weighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

.jpg?width=500)
Verbatim
t0“Wheat (Triticum aestivum L.)”
e0“Shoot extracts significantly reduced dry weight in Darab-2 and Cross-Azadi cultivars.”
e1“wild barley shoot and root extracts”
Claim · model-written summary
Shoot extract at 6 and 9 g/L significantly reduced Chamran plant height.
- Taxon
- Wheat
Triticum aestivumt0 - Material
- Chamrane0
- Treatment
- shoot extract concentrations of 6 and 9 g/Le0
- Interactor
- wild barley
Hordeum vulgare subsp. spontaneume1weed - Outcome
- Plant heighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

.jpg?width=500)
Verbatim
t0“Wheat (Triticum aestivum L.)”
e0“Plant height was significantly reduced at shoot extract concentrations of 6 and 9 g/L in Chamran and Cross-Azadi cultivars.”
e1“wild barley shoot and root extracts”
Claim · model-written summary
Shoot extract at 6 and 9 g/L significantly reduced Cross-Azadi plant height.
- Taxon
- Wheat
Triticum aestivumt0 - Material
- Cross-Azadie0
- Treatment
- shoot extract concentrations of 6 and 9 g/Le0
- Interactor
- wild barley
Hordeum vulgare subsp. spontaneume1weed - Outcome
- Plant heighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

.jpg?width=500)
Verbatim
t0“Wheat (Triticum aestivum L.)”
e0“Plant height was significantly reduced at shoot extract concentrations of 6 and 9 g/L in Chamran and Cross-Azadi cultivars.”
e1“wild barley shoot and root extracts”
Claim · model-written summary
Every tested root-extract concentration significantly reduced Falat leaf area.
- Taxon
- Wheat
Triticum aestivumt0 - Material
- Falate0
- Treatment
- All concentrations of root extracte0
- Interactor
- wild barley
Hordeum vulgare subsp. spontaneume1weed - Outcome
- leaf areae0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

.jpg?width=500)
Verbatim
t0“Wheat (Triticum aestivum L.)”
e0“All concentrations of root extract significantly reduced leaf area in Falat cultivar.”
e1“wild barley shoot and root extracts”
Claim · model-written summary
Root extract had its strongest inhibition of dry weight in Cross-Azadi.
- Taxon
- Wheat
Triticum aestivumt0 - Material
- Cross-Azadie0
- Treatment
- root extracte0
- Interactor
- wild barley
Hordeum 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.

.jpg?width=500)
Verbatim
t0“Wheat (Triticum aestivum L.)”
e0“Most severe inhibitory effects of root extract on dry weight and plant height were observed in Cross-Azadi and Falat cultivars, respectively.”
e1“wild barley shoot and root extracts”
Claim · model-written summary
Root extract had its strongest inhibition of plant height in Falat.
- Taxon
- Wheat
Triticum aestivumt0 - Material
- Falate0
- Treatment
- root extracte0
- Interactor
- wild barley
Hordeum 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.

.jpg?width=500)
Verbatim
t0“Wheat (Triticum aestivum L.)”
e0“Most severe inhibitory effects of root extract on dry weight and plant height were observed in Cross-Azadi and Falat cultivars, respectively.”
e1“wild barley shoot and root extracts”
Claim · model-written summary
Wild barley shoot extract was more inhibitory to wheat growth than root extract.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- wild barley shoot extracte0
- Interactor
- wild barley
Hordeum 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.

.jpg?width=500)
Verbatim
t0“Wheat (Triticum aestivum L.)”
e0“wild barley shoot extract exerted more allelopathic effects on wheat growth than that of root”
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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.