Abstract
ABSTRACT Following the work of Becholtz and Bandeen, a series of glasshouse experiments was made to examine the effects of root‐zone interference between Agropyron repens and wheat. In a solution‐culture experiment the reduction in growth of wheat due to the presence of A. repens could be largely corrected by increasing the nutrient supply in the solution. In similar studies but using soils, the depression of growth of wheat could not be corrected. Foliage applications of nitrogen to wheat plants grown with A. repens had no effect. Using a split‐pot technique it was found that the part of the root system of wheat growing in the same medium as the rhizomes and roots of A. repens was very severely suppressed. These results will be discussed.
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Claims 4
Claim · model-written summary
Increasing nutrient supply largely corrected wheat growth reduction due to A. repens in solution culture.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- increasing the nutrient supplye0
- Interactor
- A. repens
Elymus repense0weed - Outcome
- reduction in growth of wheate0
- Direction
- correctede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the reduction in growth of wheat due to the presence of A. repens could be largely corrected by increasing the nutrient supply in the solution”
Claim · model-written summary
In soil, wheat growth depression from A. repens was not corrected.
- Taxon
- wheatTriticum aestivume0
- Interactor
- A. repensElymus repense1weed
- Outcome
- depression of growth of wheate0
- Direction
- could not be correctede0
- Setting
- soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using soils, the depression of growth of wheat could not be corrected”
t0“Agropyron repens”
e1“the reduction in growth of wheat due to the presence of A. repens could be largely corrected by increasing the nutrient supply in the solution”
Claim · model-written summary
Foliage nitrogen applications had no effect on wheat with A. repens.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Foliage applications of nitrogene0
- Interactor
- A. repensElymus repense0weed
- Outcome
- effecte0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Foliage applications of nitrogen to wheat plants grown with A. repens had no effect”
Claim · model-written summary
Wheat roots sharing medium with A. repens rhizomes and roots were severely suppressed.
- Taxon
- wheatTriticum aestivume0
- Interactor
- A. repensElymus repense0weed
- Outcome
- part of the root system of wheate0
- Direction
- severely suppressede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the part of the root system of wheat growing in the same medium as the rhizomes and roots of A. repens was very severely suppressed”
The same questions in other papers
nitrogen · Elymus repens · Triticum aestivum (wheat)Positive and negative results
1 in the opposite direction
- 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.