Abstract
Weed management is a crucial aspect of sustainable agriculture. In this study, we investigated the allelopathic potential of wedelia (Wedelia trilobata L.) leaf extract as a bioherbicide against purple nutsedge (Cyperus rotundus L.). The experiments were carried out through greenhouse experiments using a completely randomized design (CRD) with four replications. Five different concentrations were evaluated: C10% (10% wedelia extract concentration), C20% (20% wedelia extract concentration), C40% (40% wedelia extract concentration), C+ (92 mg L−1 of gallic acid), and C− (aquadest). Allelochemicals present in the wedelia leaf extract inhibited plant height, shoot number, leaf number, leaf area, root area, and total root length. The fresh weight, dry weight, and photosynthetic pigments decreased with increasing wedelia leaf extract concentrations. Malondialdehyde contents were highest when C40% was used. Additionally, peroxide activities decreased at the highest wedelia leaf extract concentration, indicating the failure of the plant’s antioxidant defense mechanism. The decrease in growth, photosynthetic pigment, and antioxidant activity indicates that wedelia leaf extract may be able to help control the growth of purple nutsedge. The results of this study could contribute to the development of a new cropping system based on the use of wedelia as a bioherbicide for sustainable agriculture.
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Claims 6
Claim · model-written summary
Wedelia extract inhibited purple nutsedge height, shoot number, and leaf number.
- Taxon
- purple nutsedget0
- Treatment
- wedelia leaf extracte0
- Outcome
- plant height, shoot number, leaf numbere0
- Direction
- inhibitede0
WedeliaNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Allelochemicals present in the wedelia leaf extract inhibited plant height, shoot number, leaf number, leaf area, root area, and total root length.”
t0“purple nutsedge”
Claim · model-written summary
Wedelia extract inhibited purple nutsedge leaf area, root area, and total root length.
- Taxon
- purple nutsedget0
- Treatment
- wedelia leaf extracte0
- Outcome
- leaf area, root area, and total root lengthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Allelochemicals present in the wedelia leaf extract inhibited plant height, shoot number, leaf number, leaf area, root area, and total root length.”
t0“purple nutsedge”
Claim · model-written summary
Fresh and dry weight decreased as wedelia extract concentration rose.
Verbatim
e0“The fresh weight, dry weight, and photosynthetic pigments decreased with increasing wedelia leaf extract concentrations.”
t0“purple nutsedge”
Claim · model-written summary
Photosynthetic pigments decreased as wedelia extract concentration rose.
Verbatim
e0“The fresh weight, dry weight, and photosynthetic pigments decreased with increasing wedelia leaf extract concentrations.”
t0“purple nutsedge”
Claim · model-written summary
Malondialdehyde was highest at C40%.
Verbatim
e0“Malondialdehyde contents were highest when C40% was used.”
t0“purple nutsedge”
Claim · model-written summary
Peroxide activities decreased at the highest extract concentration.
- Taxon
- purple nutsedget0
- Treatment
- highest wedelia leaf extract concentratione0
- Outcome
- peroxide activitiese0
- Direction
- decreasede0
Not reportedComparator
Verbatim
e0“peroxide activities decreased at the highest wedelia leaf extract concentration”
t0“purple nutsedge”