Abstract
Allelopathy, the ability of plants to inhibit germination of other plants, is an untapped resource for weed control in crops that could revolutionize organic crop production. The main objective of the study was to evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.). To screen for potential allelopathy, plants were grown to flowering stage in a greenhouse, separated into shoots and roots, dried, and ground. Five percent aqueous extracts (w/v) were prepared by extracting 5 g of dried, ground plant samples with 100 mL of deionized water. Downy brome seeds were germinated on extract‐amended sand. Extracts from most plant species tested inhibited downy brome and wheat seed germination. Extracts from broadleaf plants were more inhibitory than extracts from cereal plants. In most plant species, shoot extracts were more inhibitory to growth of the root and shoot of downy brome than root extracts. Meadowfoam seed meal ( Limnanthes alba Hartw.), yard‐long bean [ Vigna sesquipedalis (L.) Fruw.], blue spruce ( Picea pungens pungens Engelm), and pine ( Pinus spp.) extracts, which completely inhibited the germination of downy brome seed, have the potential for use in the control of downy brome in wheat‐based cropping systems. Meadowfoam seed meal extract inhibited wheat germination by 77% and root and shoot growth by 97 and 96%, respectively. Radishes reduced wheat germination by 75 to 100%, root growth by 54 to 80% and shoot growth by 45 to 81%. Plants evaluated in this study have the potential to be used for biologically based weed control methods in organic cropping systems.
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Claims 13
Claim · model-written summary
Extracts from most plant species tested inhibited germination of downy brome and wheat seed.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Extracts from most plant species testede1
- Interactor
- downy brome
Bromus tectorume0weed - Outcome
- seed germinatione1
- Direction
- inhibitede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e1“Extracts from most plant species tested inhibited downy brome and wheat seed germination”
Claim · model-written summary
Shoot extracts were more inhibitory than root extracts to growth of the root and shoot of downy brome.
- Taxon
- wheatTriticum aestivume0
- Treatment
- shoot extractse1
- Interactor
- downy bromeBromus tectorume0weed
- Outcome
- growth of the root and shoot of downy bromee1
- Direction
- more inhibitorye1
- Comparator
- root extractse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e1“In most plant species, shoot extracts were more inhibitory to growth of the root and shoot of downy brome than root extracts”
Claim · model-written summary
Extracts from broadleaf plants were more inhibitory than extracts from cereal plants.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Extracts from broadleaf plantse1
- Outcome
- inhibitorye1
- Direction
- more inhibitorye1
- Comparator
- extracts from cereal plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e1“Extracts from broadleaf plants were more inhibitory than extracts from cereal plants”
Claim · model-written summary
Meadowfoam seed meal extract completely inhibited downy brome seed germination.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Meadowfoam seed meale5
- Interactor
- downy bromeBromus tectorume0weed
- Outcome
- germination of downy brome seede4
- Direction
- completely inhibitede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e4“which completely inhibited the germination of downy brome seed”
e5“Meadowfoam seed meal ( Limnanthes alba Hartw.)”
Claim · model-written summary
Yard-long bean (Vigna sesquipedalis) extract completely inhibited downy brome seed germination.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Vigna sesquipedalise6
- Interactor
- downy bromeBromus tectorume0weed
- Outcome
- germination of downy brome seede4
- Direction
- completely inhibitede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e4“which completely inhibited the germination of downy brome seed”
e6“Vigna sesquipedalis (L.) Fruw.”
Claim · model-written summary
Blue spruce extract completely inhibited downy brome seed germination.
- Taxon
- wheatTriticum aestivume0
- Treatment
- blue sprucee7
- Interactor
- downy bromeBromus tectorume0weed
- Outcome
- germination of downy brome seede4
- Direction
- completely inhibitede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e4“which completely inhibited the germination of downy brome seed”
e7“blue spruce ( Picea pungens pungens Engelm)”
Claim · model-written summary
Pine extract completely inhibited downy brome seed germination.
- Taxon
- wheatTriticum aestivume0
- Treatment
- pinee5
- Interactor
- downy bromeBromus tectorume0weed
- Outcome
- germination of downy brome seede4
- Direction
- completely inhibitede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e4“which completely inhibited the germination of downy brome seed”
e5“pine ( Pinus spp.)”
Claim · model-written summary
Meadowfoam seed meal extract inhibited wheat germination by 77%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Meadowfoam seed meal extracte1
- Outcome
- wheat germinatione1
- Direction
- inhibitede1
- Value
- 77%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e1“Meadowfoam seed meal extract inhibited wheat germination by 77% and root and shoot growth by 97 and 96%, respectively”
Claim · model-written summary
Meadowfoam seed meal extract inhibited wheat root and shoot growth by 97 and 96%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Meadowfoam seed meal extracte1
- Outcome
- root and shoot growthe1
- Direction
- inhibitede1
- Value
- 97 and 96%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e1“Meadowfoam seed meal extract inhibited wheat germination by 77% and root and shoot growth by 97 and 96%, respectively”
Claim · model-written summary
Radishes reduced wheat germination by 75 to 100%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Radishese1
- Outcome
- wheat germinatione1
- Direction
- reducede1
- Value
- 75 to 100%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e1“Radishes reduced wheat germination by 75 to 100%, root growth by 54 to 80% and shoot growth by 45 to 81%”
Claim · model-written summary
Radishes reduced wheat root growth by 54 to 80%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Radishese1
- Outcome
- root growthe1
- Direction
- reducede1
- Value
- 54 to 80%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e1“Radishes reduced wheat germination by 75 to 100%, root growth by 54 to 80% and shoot growth by 45 to 81%”
Claim · model-written summary
Radishes reduced wheat shoot growth by 45 to 81%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Radishese1
- Outcome
- shoot growthe1
- Direction
- reducede1
- Value
- 45 to 81%e1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e1“Radishes reduced wheat germination by 75 to 100%, root growth by 54 to 80% and shoot growth by 45 to 81%”
Claim · model-written summary
The evaluated plants have potential for biologically based weed control in organic cropping systems.
- Taxon
- wheatTriticum aestivume0
- Outcome
- biologically based weed control methodse1
- Setting
- organic cropping systemse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“evaluate allelopathic potential of various plant species on downy brome ( Bromus tectorum L.), a major pest of wheat ( Triticum aestivum L.)”
e1“Plants evaluated in this study have the potential to be used for biologically based weed control methods in organic cropping systems”
The same questions in other papers
botanical · growth · Triticum aestivum (wheat)Positive and negative results
228 papers in the same direction as this paper · 206 in the opposite direction
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