Abstract
Competitiveness of three high-yielding, lodging-resistant rice ( Oryza sativa L.) cultivars with barnyardgrass [ Echinochloa crus-galli (L.) Beauv.] was compared during 3 years at Stuttgart, Arkansas. ‘Starbonnet,’ ‘Nova 66,’ and ‘Bluebelle,’ which matured in 145, 135, and 125 days, respectively, competed with barnyardgrass for periods ranging from 10 days after crop emergence to all season. ‘Starbonnet’ was the most competitive and ‘Bluebelle’ was the least. Barnyardgrass competition for 10 or 20 days did not reduce grain yields of any cultivar. Weed competition for 40 days or longer reduced yields of ‘Nova 66’ and ‘Bluebelle,’ and competition for 60 days or longer lowered yields of ‘Starbonnet.’ As the period for maturity increased, each cultivar competed more effectively with barnyardgrass.
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Claims 7
Claim · model-written summary
Starbonnet was most competitive against barnyardgrass.
- Taxon
- Rice
Oryza sativat0 - Material
- ‘Starbonnet’e0
- Interactor
- barnyardgrass
Echinochloa crus-gallit0weed - Outcome
- most competitivee0
- Direction
- most competitivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Starbonnet’ was the most competitive and ‘Bluebelle’ was the least.”
t0“Competition of Barnyardgrass by Rice Cultivars”
Claim · model-written summary
Bluebelle was least competitive against barnyardgrass.
- Taxon
- RiceOryza sativat0
- Material
- ‘Bluebelle’e0
- Interactor
- barnyardgrassEchinochloa crus-gallit0weed
- Outcome
- leaste0
- Direction
- leaste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“‘Starbonnet’ was the most competitive and ‘Bluebelle’ was the least.”
t0“Competition of Barnyardgrass by Rice Cultivars”
Claim · model-written summary
Barnyardgrass competition for 10 or 20 days did not reduce grain yield of any cultivar.
- Taxon
- RiceOryza sativat0
- Treatment
- Barnyardgrass competition for 10 or 20 dayse0
- Interactor
- BarnyardgrassEchinochloa crus-gallie0weed
- Outcome
- grain yieldse0
- Direction
- did not reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Barnyardgrass competition for 10 or 20 days did not reduce grain yields of any cultivar.”
t0“Competition of Barnyardgrass by Rice Cultivars”
Claim · model-written summary
Weed competition for at least 40 days reduced Nova 66 yield.
- Taxon
- RiceOryza sativat0
- Material
- ‘Nova 66’e0
- Treatment
- Weed competition for 40 days or longere0
- Interactor
- Weede0weed
- Outcome
- yieldse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed competition for 40 days or longer reduced yields of ‘Nova 66’ and ‘Bluebelle,’”
t0“Competition of Barnyardgrass by Rice Cultivars”
Claim · model-written summary
Weed competition for at least 40 days reduced Bluebelle yield.
- Taxon
- RiceOryza sativat0
- Material
- ‘Bluebelle,’e0
- Treatment
- Weed competition for 40 days or longere0
- Interactor
- Weede0weed
- Outcome
- yieldse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed competition for 40 days or longer reduced yields of ‘Nova 66’ and ‘Bluebelle,’”
t0“Competition of Barnyardgrass by Rice Cultivars”
Claim · model-written summary
Competition for at least 60 days lowered Starbonnet yield.
- Taxon
- RiceOryza sativat0
- Material
- Starbonnete0
- Treatment
- competition for 60 days or longere0
- Interactor
- barnyardgrassEchinochloa crus-gallit0weed
- Outcome
- yieldse0
- Direction
- lowerede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“competition for 60 days or longer lowered yields of ‘Starbonnet.’”
t0“Competition of Barnyardgrass by Rice Cultivars”
Claim · model-written summary
Longer maturity was associated with more effective barnyardgrass competition.
- Taxon
- RiceOryza sativat0
- Organ / stage
- maturitye0
- Interactor
- barnyardgrassEchinochloa crus-gallie0weed
- Outcome
- competed more effectively with barnyardgrasse0
- Direction
- more effectivelye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“As the period for maturity increased, each cultivar competed more effectively with barnyardgrass.”
t0“Competition of Barnyardgrass by Rice Cultivars”
The same questions in other papers
Echinochloa crus-galli · yield · Oryza sativa (rice)Positive and negative results
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See all 47 papers →competition · Echinochloa crus-galli · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- negative
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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.