Abstract
Wild oat continues to reduce spring wheat yields and profits despite the wide spread use of herbicides. Further reductions in the occurrence of wild oat could be achieved with the development of competitive cropping systems. Field studies were conducted to investigate the effects of wheat seed size and seeding rate on wild oat demographic processes under a range of wild oat densities. Spring wheat competitiveness increased as seed size and seeding rate increased, significantly reducing wild oat biomass and seed production. Averaged across all other factors, spring wheat plants derived from large seed reduced wild oat panicle numbers 15% and biomass and seed production 25% compared with small seed. Increasing spring wheat seeding rate from 175 to 280 plants m−2 reduced the number of panicles 10% and wild oat biomass and seed production 20%. The combined effect of large seed plus increased seeding rate reduced wild oat biomass and seed production 45%. Results demonstrate that the use of large seed size and increased seeding rates can improve wheat competitiveness and provide an effective means to reduce wild oat biomass and seed production.
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Claims 8
Claim · model-written summary
Spring wheat competitiveness increased with seed size and seeding rate.
- Taxon
- Spring wheat
Triticum aestivumt0 - Treatment
- seed size and seeding ratee0
- Outcome
- competitivenesse0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spring wheat competitiveness increased as seed size and seeding rate increased, significantly reducing wild oat biomass and seed production.”
t0“Spring wheat”
Claim · model-written summary
Larger wheat seed and higher seeding rate significantly reduced wild oat biomass and seed production.
- Taxon
- Spring wheatTriticum aestivumt0
- Treatment
- seed size and seeding rate increasede0
- Interactor
- wild oate0weed
- Outcome
- wild oat biomass and seed productione0
- Direction
- reducinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Spring wheat competitiveness increased as seed size and seeding rate increased, significantly reducing wild oat biomass and seed production.”
t0“Spring wheat”
Claim · model-written summary
Large wheat seed reduced wild oat panicle numbers by 15% compared with small seed.
- Taxon
- spring wheatTriticum aestivume0
- Treatment
- large seede0
- Interactor
- wild oate0weed
- Outcome
- wild oat panicle numberse0
- Direction
- reducede0
- Value
- 15%e0
- Comparator
- small seede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring wheat plants derived from large seed reduced wild oat panicle numbers 15% and biomass and seed production 25% compared with small seed.”
Claim · model-written summary
Large wheat seed reduced wild oat biomass and seed production by 25% compared with small seed.
- Taxon
- spring wheatTriticum aestivume0
- Treatment
- large seede0
- Interactor
- wild oate0weed
- Outcome
- biomass and seed productione0
- Direction
- reducede0
- Value
- 25%e0
- Comparator
- small seede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“spring wheat plants derived from large seed reduced wild oat panicle numbers 15% and biomass and seed production 25% compared with small seed.”
Claim · model-written summary
Raising wheat seeding rate from 175 to 280 plants m−2 reduced wild oat panicles by 10%.
- Taxon
- spring wheatTriticum aestivume0
- Treatment
- seeding rate from 175 to 280 plants m−2e0
- Interactor
- wild oate0weed
- Outcome
- number of paniclese0
- Direction
- reducede0
- Value
- 10%e0
- Comparator
- 175e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing spring wheat seeding rate from 175 to 280 plants m−2 reduced the number of panicles 10% and wild oat biomass and seed production 20%.”
Claim · model-written summary
Raising wheat seeding rate from 175 to 280 plants m−2 reduced wild oat biomass and seed production by 20%.
- Taxon
- spring wheatTriticum aestivume0
- Treatment
- seeding rate from 175 to 280 plants m−2e0
- Interactor
- wild oate0weed
- Outcome
- wild oat biomass and seed productione0
- Direction
- reducede0
- Value
- 20%e0
- Comparator
- 175e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Increasing spring wheat seeding rate from 175 to 280 plants m−2 reduced the number of panicles 10% and wild oat biomass and seed production 20%.”
Claim · model-written summary
Large wheat seed combined with increased seeding rate reduced wild oat biomass and seed production by 45%.
- Taxon
- Spring wheatTriticum aestivumt0
- Treatment
- large seed plus increased seeding ratee0
- Interactor
- wild oate0weed
- Outcome
- wild oat biomass and seed productione0
- Direction
- reducede0
- Value
- 45%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combined effect of large seed plus increased seeding rate reduced wild oat biomass and seed production 45%.”
t0“Spring wheat”
Claim · model-written summary
The authors recommend large seed and increased seeding rates to improve wheat competitiveness and reduce wild oat biomass and seed production.
- Taxon
- wheatTriticum aestivume0
- Treatment
- large seed size and increased seeding ratese0
- Interactor
- wild oate0weed
- Outcome
- improve wheat competitiveness and provide an effective means to reduce wild oat biomass and seed productione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of large seed size and increased seeding rates can improve wheat competitiveness and provide an effective means to reduce wild oat biomass and seed production.”
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See all 498 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.