Abstract
Summary. Spring wheat, sown at three different times, and Agropyron repens, defoliated at the same three times, were grown separately or together in pots kept in an open‐sided cage. The pots were widely spaced and adequately watered. Early sowing of wheat gave a greater grain yield than late sowing, and lessened the loss from competition with Agropyron. Early defoliation of Agropyron slowed its subsequent early growth more than did late defoliation, and plants defoliated early suffered more from competition with wheat. Competition, probably mainly for nitrogen, decreased tillering and the number of ears produced by wheat, more when sowing was late than early, but grain dry weight per ear was decreased equally at the three times of sowing. The rate at which wheat produced leaves was affected by competition only at the last date of sowing. In competition with wheat, Agropyron produced fewer shoots and ears, had lighter shoots and rhizomes, and ear emergence was slightly delayed.
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Claims 10
Claim · model-written summary
Early sowing of spring wheat gave a greater grain yield than late sowing.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Early sowinge0
- Outcome
- grain yielde0
- Direction
- greatere0
- Comparator
- late sowinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early sowing of wheat gave a greater grain yield than late sowing”
Claim · model-written summary
Early sowing of wheat lessened the loss from competition with Agropyron compared with late sowing.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Early sowinge0
- Outcome
- loss from competition with Agropyrone0
- Direction
- lessenede0
- Comparator
- late sowinge0
AgropyronOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early sowing of wheat gave a greater grain yield than late sowing, and lessened the loss from competition with Agropyron”
Claim · model-written summary
Early defoliation of Agropyron slowed its subsequent early growth more than late defoliation did.
- Treatment
- Early defoliatione0
- Outcome
- subsequent early growthe0
- Direction
- slowede0
- Comparator
- late defoliatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early defoliation of Agropyron slowed its subsequent early growth more than did late defoliation”
Claim · model-written summary
Agropyron plants defoliated early suffered more from competition with wheat than plants defoliated late.
- Treatment
- defoliated earlye0
- Interactor
- wheatTriticum aestivume0other
- Outcome
- suffered more from competition with wheate0
- Direction
- moree0
- Comparator
- late defoliatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Early defoliation of Agropyron slowed its subsequent early growth more than did late defoliation, and plants defoliated early suffered more from competition with wheat”
Claim · model-written summary
Competition, probably mainly for nitrogen, decreased tillering and the number of ears produced by wheat, more when sowing was late than when early.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Competitione0
- Outcome
- tillering and the number of earse0
- Direction
- decreasede0
- Qualifier
- more when sowing was late than earlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Competition, probably mainly for nitrogen, decreased tillering and the number of ears produced by wheat, more when sowing was late than early”
Claim · model-written summary
Competition decreased grain dry weight per ear of wheat equally at the three times of sowing.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Competitione0
- Outcome
- grain dry weight per eare0
- Direction
- decreasede0
- Qualifier
- equally at the three times of sowinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Competition, probably mainly for nitrogen, decreased tillering and the number of ears produced by wheat, more when sowing was late than early, but grain dry weight per ear was decreased equally at the three times of sowing”
Claim · model-written summary
The rate at which wheat produced leaves was affected by competition only at the last date of sowing.
- Taxon
- wheatTriticum aestivume0
- Treatment
- competitione0
- Outcome
- rate at which wheat produced leavese0
- Qualifier
- only at the last date of sowinge0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rate at which wheat produced leaves was affected by competition only at the last date of sowing”
Claim · model-written summary
In competition with wheat, Agropyron produced fewer shoots and ears.
- Treatment
- competition with wheate0
- Interactor
- wheatTriticum aestivume0other
- Outcome
- shoots and earse0
- Direction
- fewere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In competition with wheat, Agropyron produced fewer shoots and ears”
Claim · model-written summary
In competition with wheat, Agropyron had lighter shoots and rhizomes.
- Treatment
- competition with wheate0
- Interactor
- wheatTriticum aestivume0other
- Outcome
- shoots and rhizomese0
- Direction
- lightere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In competition with wheat, Agropyron produced fewer shoots and ears, had lighter shoots and rhizomes”
Claim · model-written summary
In competition with wheat, ear emergence of Agropyron was slightly delayed.
- Treatment
- competition with wheate0
- Interactor
- wheatTriticum aestivume0other
- Outcome
- ear emergencee0
- Direction
- delayede0
- Qualifier
- slightlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In competition with wheat, Agropyron produced fewer shoots and ears, had lighter shoots and rhizomes, and ear emergence was slightly delayed”
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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.