Abstract
Problems facing farmers practicing conservation agriculture in the semi-arid zone of Tunisia include appropriate cover crop selection, management of allelopathic effects affecting subsequent crop performance, and influence of seasonal variation on allelopathy expression. Allelopathy expressed by faba bean (Vicia faba L.) toward durum wheat [Triticum turgidum ssp. durum (Desf.) Husn.] was studied using bioassays during three growing seasons. The role of phenols in the expression of such potential was also investigated. Analyses of plant samples at three phenological stages (flowering, fruiting, senescence) revealed that leaves were most inhibitory. Allelopathic potential differed among plant components and phenological stages, with the greatest inhibitory effects occurring at senescence (49%). Inhibition varied across growing seasons, suggesting an environmental impact linked to inter-monthly water-balance variability. Inter-monthly rainfall appeared to be negatively related to the intensity of the allelopathic potential. The total phenolic content varied among plant components, phenological stages, and growing seasons, and the results implied that climatic variation may impact phenol accumulation in plant tissues. Total phenolics content of roots and stems significantly (p = 0.003 and 0.03, respectively) contributed to faba bean allelopathy. Use of faba bean as a cover crop preceding durum wheat carries a risk of allelopathic effects, which could negatively impact grain yield. Understanding the allelopathy of faba bean as a cover crop is critical for efficient management of residues under conservation agriculture.
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
Claim · model-written summary
Faba bean leaves were the most inhibitory plant component toward durum wheat.
- Taxon
- faba bean
Vicia fabae0 - Organ / stage
- leavese1
- Interactor
- durum wheat
Triticum turgidum subsp. durume0other - Outcome
- most inhibitorye1
- Direction
- most inhibitorye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Allelopathy expressed by faba bean (Vicia faba L.) toward durum wheat [Triticum turgidum ssp. durum (Desf.) Husn.] was studied using bioassays during three growing seasons”
e1“Analyses of plant samples at three phenological stages (flowering, fruiting, senescence) revealed that leaves were most inhibitory”
Claim · model-written summary
Allelopathic inhibition of durum wheat by faba bean was greatest at senescence, at 49%.
- Taxon
- faba beanVicia fabae0
- Organ / stage
- senescencee2
- Interactor
- durum wheatTriticum turgidum subsp. durume0other
- Outcome
- inhibitory effectse2
- Direction
- greateste2
- Value
- 49%e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Allelopathy expressed by faba bean (Vicia faba L.) toward durum wheat [Triticum turgidum ssp. durum (Desf.) Husn.] was studied using bioassays during three growing seasons”
e2“with the greatest inhibitory effects occurring at senescence (49%)”
Claim · model-written summary
Allelopathic inhibition by faba bean varied across growing seasons.
- Taxon
- faba beanVicia fabae0
- Treatment
- growing seasonse3
- Outcome
- Inhibitione3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Allelopathy expressed by faba bean (Vicia faba L.) toward durum wheat [Triticum turgidum ssp. durum (Desf.) Husn.] was studied using bioassays during three growing seasons”
e3“Inhibition varied across growing seasons, suggesting an environmental impact linked to inter-monthly water-balance variability”
Claim · model-written summary
Inter-monthly rainfall was negatively related to the intensity of the allelopathic potential of faba bean.
- Taxon
- faba beanVicia fabae0
- Treatment
- Inter-monthly rainfalle4
- Outcome
- intensity of the allelopathic potentiale4
- Direction
- lowerinferrede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Allelopathy expressed by faba bean (Vicia faba L.) toward durum wheat [Triticum turgidum ssp. durum (Desf.) Husn.] was studied using bioassays during three growing seasons”
e4“Inter-monthly rainfall appeared to be negatively related to the intensity of the allelopathic potential”
Claim · model-written summary
Climatic variation may impact phenol accumulation in faba bean tissues.
- Taxon
- faba beanVicia fabae0
- Treatment
- climatic variatione5
- Outcome
- phenol accumulatione5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Allelopathy expressed by faba bean (Vicia faba L.) toward durum wheat [Triticum turgidum ssp. durum (Desf.) Husn.] was studied using bioassays during three growing seasons”
e5“climatic variation may impact phenol accumulation in plant tissues”
Claim · model-written summary
Total phenolics content of faba bean roots significantly contributed to allelopathy.
- Taxon
- faba beanVicia fabae6
- Organ / stage
- rootse6
- Compound
- Total phenolics contente6
- Outcome
- allelopathye6
- Value
- p = 0.003e6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Total phenolics content of roots and stems significantly (p = 0.003 and 0.03, respectively) contributed to faba bean allelopathy”
Claim · model-written summary
Total phenolics content of faba bean stems significantly contributed to allelopathy.
- Taxon
- faba beanVicia fabae6
- Organ / stage
- stemse6
- Compound
- Total phenolics contente6
- Outcome
- allelopathye6
- Value
- 0.03e6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“Total phenolics content of roots and stems significantly (p = 0.003 and 0.03, respectively) contributed to faba bean allelopathy”
Claim · model-written summary
Using faba bean as a cover crop before durum wheat risks allelopathic effects that could negatively impact grain yield.
- Taxon
- faba beanVicia fabae7
- Outcome
- grain yielde7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Use of faba bean as a cover crop preceding durum wheat carries a risk of allelopathic effects, which could negatively impact grain yield”