Claim · model-written summary
Fresh extracts of A. retroflexus reduced wheat seedling germination, coleoptile and root lengths, and root dry weight.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- fresh shoot or root extracte0
- Interactor
- Amaranthus spp.
Amaranthust0weed - Outcome
- germination, coleoptile length, root length and root dry weighte0
- Direction
- reducede0
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleComparatorSettingValueQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

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Verbatim
e0“fresh shoot or root extract of the three weed species reduced germination, coleoptile length, root length and root dry weight of wheat seedlings”
t0“The allelopathic effect of three Amaranthus spp. (pigweeds) on wheat (Triticum durum)”
Title
The allelopathic effect of three Amaranthus spp. (pigweeds) on wheat (Triticum durum)
J. R. QASEM Weed Research 1995. doi:10.1111/j.1365-3180.1995.tb02015.x
Other claims from this paper (14)
- Intervention effect Fresh extracts of A. blitoides reduced wheat seedling germination and growth traits.
- Intervention effect Fresh extracts of A. gracilis reduced wheat seedling germination and growth traits.
- Intervention effect Low concentrations of shoot extract promoted wheat shoot growth.
- Observation Fresh extracts were more phytotoxic than dried extracts.
- Observation Shoot extracts had higher detrimental effects than root extracts.
- Intervention effect Dried A. gracilis shoot extract increased wheat seedling shoot and root dry weight in pots.
- Intervention effect A. retroflexus extracts and dried shoots significantly reduced wheat germination and growth in pots.
- Intervention effect A. blitoides extracts and dried shoots significantly reduced wheat germination and growth in pots.
- Intervention effect Up to 16 g kg −1 A. gracilis residues promoted wheat shoot growth.
- Intervention effect Up to 16 g kg −1 A. gracilis residues had no significant harmful effect on wheat root growth.
- Observation Wheat roots appeared more sensitive to allelopathy than shoots.
- Intervention effect Field incorporation of A. retroflexus residues reduced wheat height, grain and straw yield.
- Intervention effect Field incorporation of A. blitoides residues reduced wheat height, grain and straw yield.
- Intervention effect A. gracilis residues increased wheat height and yield in the field.