Abstract
Field experiments were conducted in Oklahoma to determine the effects of winter wheat seeding date and cheat infestation level on cultural cheat control obtained by increasing winter wheat seeding rates and decreasing row spacing. Seeding rate and row spacing interactions influenced cheat density, biomass, or seed in harvested wheat (dockage) at two of three locations. Suppressive effects on cheat of increasing wheat seeding rates and reduced row spacings were greater in wheat seeded in September than later. At two other locations, increasing seeding rate from 67 to 101 kg ha –1 or reducing row spacings from 22.5 to 15 cm increased winter wheat yield over a range of cheat infestation levels.
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Claims 5
Claim · model-written summary
Seeding rate and row spacing interacted to affect cheat density, biomass or dockage at two of three locations.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- Seeding rate and row spacinge0
- Interactor
- Cheat (Bromus secalinus)
Bromus secalinust0weed - Outcome
- cheat density, biomass, or seed in harvested wheat (dockage)e0
- Direction
- influencede0
- Qualifier
- at two of three locationse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding rate and row spacing interactions influenced cheat density, biomass, or seed in harvested wheat (dockage) at two of three locations.”
t0“Wheat (Triticum aestivum) and Cheat (Bromus secalinus)”
Claim · model-written summary
Higher wheat seeding rates suppressed cheat more strongly in September seedings than later seedings.
- Taxon
- wheatTriticum aestivume0
- Treatment
- increasing wheat seeding ratese0
- Interactor
- Cheat (Bromus secalinus)Bromus secalinust0weed
- Outcome
- Suppressive effects on cheate0
- Direction
- greatere0
- Qualifier
- Septembere0
- Comparator
- latere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Suppressive effects on cheat of increasing wheat seeding rates and reduced row spacings were greater in wheat seeded in September than later.”
t0“Wheat (Triticum aestivum) and Cheat (Bromus secalinus)”
Claim · model-written summary
Reduced row spacing suppressed cheat more strongly in September seedings than later seedings.
- Taxon
- wheatTriticum aestivume0
- Treatment
- reduced row spacingse0
- Interactor
- Cheat (Bromus secalinus)Bromus secalinust0weed
- Outcome
- Suppressive effects on cheate0
- Direction
- greatere0
- Qualifier
- Septembere0
- Comparator
- latere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Suppressive effects on cheat of increasing wheat seeding rates and reduced row spacings were greater in wheat seeded in September than later.”
t0“Wheat (Triticum aestivum) and Cheat (Bromus secalinus)”
Claim · model-written summary
Raising seeding rate from 67 to 101 kg ha –1 increased winter wheat yield across cheat infestation levels at two locations.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- increasing seeding rate from 67 to 101 kg ha –1e0
- Outcome
- winter wheat yielde0
- Direction
- increasede0
- Qualifier
- over a range of cheat infestation levelse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At two other locations, increasing seeding rate from 67 to 101 kg ha –1 or reducing row spacings from 22.5 to 15 cm increased winter wheat yield over a range of cheat infestation levels.”
Claim · model-written summary
Reducing row spacing from 22.5 to 15 cm increased winter wheat yield across cheat infestation levels at two locations.
- Taxon
- winter wheatTriticum aestivume0
- Treatment
- reducing row spacings from 22.5 to 15 cme0
- Outcome
- winter wheat yielde0
- Direction
- increasede0
- Qualifier
- over a range of cheat infestation levelse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At two other locations, increasing seeding rate from 67 to 101 kg ha –1 or reducing row spacings from 22.5 to 15 cm increased winter wheat yield over a range of cheat infestation levels.”
The same questions in other papers
density · yield · Triticum aestivum (wheat)Positive and negative results
375 papers in the same direction as this paper · 115 in the opposite direction · 7 reporting no difference from an alternative
- negative
- positive
- positive
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See all 498 papers →density · Bromus secalinus · Triticum aestivum (wheat)Results agree
3 papers in the same direction as this paper
- positive
- positive
- positive
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.