Abstract
The development of competitive cropping systems could minimize the negative effects of wild oat competition on cereal grain yield, and in the process, help augment herbicide use. A 3-yr field experiment was conducted at Kalispell, MT, to investigate the effects of spring wheat seed size and seeding rate on wheat spike production, biomass, and grain yield under a range of wild oat densities. Wheat plant density, spikes, biomass, and yield all increased as seed size and seeding rates increased. Averaged across all other factors, the use of higher seeding rates and larger seed sizes improved yields by 12 and 18%, respectively. Accordingly, grain yield was more highly correlated with seed size than with seeding rate effects. However, the combined use of both tactics resulted in a more competitive cropping system, improving grain yields by 30%. Seeding rate effects were related to spike production, whereas seed size effects were related to biomass production. As such, plants derived from large seed appear to have greater vigor and are able to acquire a larger share of plant growth factors relative to plants derived from small seed.
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Claims 8
Claim · model-written summary
Wheat density, spikes, biomass and yield increased with seed size and seeding rate.
- Taxon
- Wheat
Triticum aestivume0 - Material
- seed sizee0
- Treatment
- seeding ratese0
- Outcome
- plant density, spikes, biomass, and yielde0
- Direction
- increasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wheat plant density, spikes, biomass, and yield all increased as seed size and seeding rates increased.”
Claim · model-written summary
Higher seeding rates improved wheat yield by 12%.
- Taxon
- Spring wheatTriticum aestivumt0
- Treatment
- higher seeding ratese0
- Outcome
- yieldse0
- Direction
- improvede0
- Value
- 12e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of higher seeding rates and larger seed sizes improved yields by 12 and 18%, respectively.”
t0“Spring wheat”
Claim · model-written summary
Larger seed sizes improved wheat yield by 18%.
- Taxon
- Spring wheatTriticum aestivumt0
- Treatment
- larger seed sizese0
- Outcome
- yieldse0
- Direction
- improvede0
- Value
- 18%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the use of higher seeding rates and larger seed sizes improved yields by 12 and 18%, respectively.”
t0“Spring wheat”
Claim · model-written summary
Wheat grain yield was more highly correlated with seed size than seeding rate.
- Taxon
- Spring wheatTriticum aestivumt0
- Material
- seed sizee0
- Outcome
- grain yielde0
- Direction
- more highly correlatede0
- Comparator
- seeding ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“grain yield was more highly correlated with seed size than with seeding rate effects.”
t0“Spring wheat”
Claim · model-written summary
Using both larger seeds and higher seeding rates improved wheat grain yield by 30%.
- Taxon
- Spring wheatTriticum aestivumt0
- Treatment
- seed size and seeding ratet0
- Outcome
- grain yieldse0
- Direction
- improvinge0
- Value
- 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combined use of both tactics resulted in a more competitive cropping system, improving grain yields by 30%.”
t0“Spring wheat seed size and seeding rate”
Claim · model-written summary
Seeding rate effects related to spike production.
- Taxon
- Spring wheatTriticum aestivumt0
- Treatment
- Seeding ratee0
- Outcome
- spike productione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Seeding rate effects were related to spike production”
t0“Spring wheat”
Claim · model-written summary
Seed size effects related to biomass production.
- Taxon
- Spring wheatTriticum aestivumt0
- Material
- seed sizee0
- Outcome
- biomass productione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seed size effects were related to biomass production.”
t0“Spring wheat”
Claim · model-written summary
Plants from large seed appear more vigorous and acquire more growth factors than plants from small seed.
- Taxon
- Spring wheatTriticum aestivumt0
- Material
- large seede0
- Outcome
- greater vigor and are able to acquire a larger share of plant growth factorse0
- Direction
- greatere0
- Comparator
- small seede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“plants derived from large seed appear to have greater vigor and are able to acquire a larger share of plant growth factors relative to plants derived from small seed.”
t0“Spring wheat”
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