Abstract
Laboratory bioassay was conducted to assess the effects of wheat (Triticumaestivum) crop density on weed control of annual ryegrass (Lolium rigidum).Increasing the density of allelopathic wheat strongly ameliorated its competitiveness and significantly inhibited the growth of annual ryegrass. The increased wheat density steadily decreased the total root length and total root surface area of ryegrass, however,the root diameter of ryegrass increased. The roots of annual ryegrass were thinner than wheat. Interactions between the wheat and annual ryegrass greatly influenced the annual ryegrass root length and diameter within 0.180-0.225 mm and within 0.225-0.270 mm. In addition, root distribution and dominance in different diameter class waswheat density dependent and uneven. The increased root diameter and decreased rootlength and surface area of rye grass may be due to strong allelopathic effects of wheat(significant quantity of allelochemicals were produced at middle and high densities).This might led to the suppression of annual ryegrass growth.
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Claims 7
Claim · model-written summary
Increasing the density of allelopathic wheat significantly inhibited the growth of annual ryegrass in a laboratory bioassay.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Increasing the density of allelopathic wheate0
- Interactor
- annual ryegrasse0weed
- Outcome
- growth of annual ryegrasse0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing the density of allelopathic wheat strongly ameliorated its competitiveness and significantly inhibited the growth of annual ryegrass”
Claim · model-written summary
Increased wheat density steadily decreased total root length and total root surface area of ryegrass.
- Taxon
- wheatTriticum aestivume0
- Treatment
- increased wheat densitye0
- Outcome
- total root length and total root surface area of ryegrasse0
- Direction
- decreasede0
LoliumNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increased wheat density steadily decreased the total root length and total root surface area of ryegrass”
Claim · model-written summary
Increased wheat density increased the root diameter of ryegrass.
- Taxon
- wheatTriticum aestivume0
- Treatment
- increased wheat densitye0
- Outcome
- root diameter of ryegrasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increased wheat density steadily decreased the total root length and total root surface area of ryegrass, however,the root diameter of ryegrass increased”
Claim · model-written summary
Annual ryegrass roots were thinner than wheat roots.
- Taxon
- wheatTriticum aestivume0
- Interactor
- annual ryegrasse0weed
- Outcome
- roots of annual ryegrass were thinnere0
- Comparator
- wheate0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The roots of annual ryegrass were thinner than wheat”
Claim · model-written summary
Interactions between wheat and annual ryegrass greatly influenced ryegrass root length and diameter within the 0.180-0.225 mm and 0.225-0.270 mm classes.
- Taxon
- wheatTriticum aestivume0
- Interactor
- annual ryegrasse0weed
- Outcome
- annual ryegrass root length and diametere0
- Qualifier
- within 0.180-0.225 mm and within 0.225-0.270 mme0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Interactions between the wheat and annual ryegrass greatly influenced the annual ryegrass root length and diameter within 0.180-0.225 mm and within 0.225-0.270 mm”
Claim · model-written summary
Root distribution and dominance in different diameter classes depended on wheat density and were uneven.
- Taxon
- wheatTriticum aestivume0
- Treatment
- wheat densitye0
- Outcome
- root distribution and dominance in different diameter classe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“root distribution and dominance in different diameter class waswheat density dependent and uneven”
Claim · model-written summary
The authors suggest the changed ryegrass roots may be due to strong allelopathic effects of wheat, with significant allelochemicals produced at middle and high densities.
- Taxon
- wheatTriticum aestivume0
- Compound
- allelochemicalse0
- Outcome
- allelopathic effectse0
- Qualifier
- may be due toe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“may be due to strong allelopathic effects of wheat(significant quantity of allelochemicals were produced at middle and high densities)”
The same questions in other papers
allelopathy · growth · Triticum aestivum (wheat)Positive and negative results
8 papers in the same direction as this paper · 11 in the opposite direction
- negative
- negative
- no effect
16 papers more in this group
See all 20 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.