Abstract
To better understand the allelopathic effect of sorghum(Sorghum vulgare L.), the inhibitory activities of water extracts of the stem, leaf and root, and of residues of the stem to major crops and weeds associated with them were evaluated. The allelopathic activity of sorghum plants was species specific, and depended on source and concentration. Germination, and shoot and root length of all test species were inhibited by the different concentrations of the stem extract. Among the crop species, radish showed the most inhibition, followed by wheat and rice. Maize was the least sensitive species. Of the weed species, Ipomoea triloba was most inhibited, followed by Echinochloa colona and Rottboellia cochinchinensis. The water extracts of leaves, stems, and roots significantly inhibited germination and seedling growth in E. colona and radish. The stem extract gave the greatest inhibitory effect on E. colona while all three extracts produced similar response in radish. In the greenhouse trial, sorghum stem residue placed on the soil surface as mulch significantly inhibited seedling growth in E. colona and radish, but not that in rice.
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Claims 11
Claim · model-written summary
Sorghum allelopathic activity varied by target species, extract source, and concentration.
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The allelopathic activity of sorghum plants was species specific, and depended on source and concentration”
Claim · model-written summary
Stem extract concentrations inhibited germination and shoot and root length in all test species.
- Taxon
- all test speciese0
- Treatment
- different concentrations of the stem extracte0
- Outcome
- Germination, and shoot and root lengthe0
- Direction
- inhibitede0
Not reportedComparator
Verbatim
e0“Germination, and shoot and root length of all test species were inhibited by the different concentrations of the stem extract”
Claim · model-written summary
Radish was most inhibited among crop species, followed by wheat and rice; maize was least sensitive.
- Taxon
- radish
Raphanus sativuse0 - Outcome
- most inhibitione0
- Direction
- most inhibitione0
- Comparator
- wheat and ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Among the crop species, radish showed the most inhibition, followed by wheat and rice. Maize was the least sensitive species”
Claim · model-written summary
Ipomoea triloba was the most inhibited weed, followed by Echinochloa colona and Rottboellia cochinchinensis.
- Taxon
- Ipomoea triloba
Ipomoea trilobae0 - Interactor
- Ipomoea trilobaIpomoea trilobae0weed
- Outcome
- most inhibitede0
- Direction
- most inhibitede0
- Comparator
- Echinochloa colona and Rottboellia cochinchinensise0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of the weed species, Ipomoea triloba was most inhibited, followed by Echinochloa colona and Rottboellia cochinchinensis”
Claim · model-written summary
Leaf, stem, and root water extracts significantly inhibited germination and seedling growth of E. colona.
- Taxon
- E. colona
Echinochloa colonae0 - Treatment
- water extracts of leaves, stems, and rootse0
- Interactor
- E. colonaEchinochloa colonae0weed
- Outcome
- germination and seedling growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water extracts of leaves, stems, and roots significantly inhibited germination and seedling growth in E. colona and radish”
Claim · model-written summary
Leaf, stem, and root water extracts significantly inhibited germination and seedling growth of radish.
- Taxon
- radishRaphanus sativuse0
- Treatment
- water extracts of leaves, stems, and rootse0
- Outcome
- germination and seedling growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The water extracts of leaves, stems, and roots significantly inhibited germination and seedling growth in E. colona and radish”
Claim · model-written summary
Stem extract caused the greatest inhibition of E. colona.
- Taxon
- E. colonaEchinochloa colonae0
- Treatment
- stem extracte0
- Interactor
- E. colonaEchinochloa colonae0weed
- Outcome
- inhibitory effecte0
- Direction
- greateste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The stem extract gave the greatest inhibitory effect on E. colona”
Claim · model-written summary
All three extracts caused similar responses in radish.
- Taxon
- radishRaphanus sativuse0
- Treatment
- all three extractse0
- Outcome
- responsee0
- Direction
- similare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“all three extracts produced similar response in radish”
Claim · model-written summary
Sorghum stem residue mulch significantly inhibited E. colona seedling growth in the greenhouse.
- Taxon
- E. colonaEchinochloa colonae0
- Treatment
- sorghum stem residue placed on the soil surface as mulche0
- Interactor
- E. colonaEchinochloa colonae0weed
- Outcome
- seedling growthe0
- Direction
- inhibitede0
- Setting
- greenhouse triale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the greenhouse trial, sorghum stem residue placed on the soil surface as mulch significantly inhibited seedling growth in E. colona and radish”
Claim · model-written summary
Sorghum stem residue mulch significantly inhibited radish seedling growth in the greenhouse.
- Taxon
- radishRaphanus sativuse0
- Treatment
- sorghum stem residue placed on the soil surface as mulche0
- Outcome
- seedling growthe0
- Direction
- inhibitede0
- Setting
- greenhouse triale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the greenhouse trial, sorghum stem residue placed on the soil surface as mulch significantly inhibited seedling growth in E. colona and radish”
Claim · model-written summary
Sorghum stem residue mulch did not inhibit rice seedling growth.
- Taxon
- rice
Oryza sativae0 - Treatment
- sorghum stem residue placed on the soil surface as mulche0
- Outcome
- seedling growthe0
- Direction
- note0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum stem residue placed on the soil surface as mulch significantly inhibited seedling growth in E. colona and radish, but not that in rice”
The same questions in other papers
Sorghum · growth · Oryza sativa (rice)Positive and negative results
1 in the opposite direction
- positive
Sorghum · growth · Raphanus sativus (radish)Positive and negative results
2 in the opposite direction
- positive
- positive
Sorghum · growth · Echinochloa colona (jungle rice)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
botanical · growth · Echinochloa colona (jungle rice)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
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2 papers more in this group
See all 6 papers →mulching · growth · Raphanus sativus (radish)Positive and negative results
1 paper in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
2 papers more in this group
See all 6 papers →mulching · growth · Oryza sativa (rice)Positive and negative results
11 papers in the same direction as this paper · 34 in the opposite direction
- positive
- positive
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42 papers more in this group
See all 46 papers →botanical · growth · Raphanus sativus (radish)Positive and negative results
98 papers in the same direction as this paper · 53 in the opposite direction
- positive
- positive
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148 papers more in this group
See all 152 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.