Abstract
Lath-house experiments were conducted to compare the effect of wild oat ( Avena fatua L.) competition on two wheat ( Triticum aestivum L. ‘Anza’ and T. turgidum durum group ‘Mexicali′) genotypes at three nitrate concentrations. Plants were grown to maturity in pots containing 10 wheat or wild oat plants, or mixtures of 10 wheat and 10, 25, or 50 wild oat plants. Nitrate was supplied in 500 ml Hoagland's solution with 1.5, 7.5, or 15.0 mM nitrate, as K and Ca nitrate, every 4 days. When grown without competition, Anza had more above-ground plant weight and grain yield and less whole-plant percent nitrogen than Mexicali. Wild oat competition caused larger reductions in plant weight and grain yield, and smaller reductions in percent nitrogen for Anza than for Mexicali. Wild oat competition reduced the effectiveness of nitrate in increasing plant weight, grain yield, and whole-plant percent nitrogen of wheat.
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Claims 9
Claim · model-written summary
Without competition Anza had more aboveground plant weight than Mexicali.
Not reportedTaxon
Verbatim
e0“When grown without competition, Anza had more above-ground plant weight and grain yield and less whole-plant percent nitrogen than Mexicali.”
Claim · model-written summary
Without competition Anza had more grain yield than Mexicali.
Not reportedTaxon
Verbatim
e0“When grown without competition, Anza had more above-ground plant weight and grain yield and less whole-plant percent nitrogen than Mexicali.”
Claim · model-written summary
Without competition Anza had less whole-plant nitrogen percentage than Mexicali.
Not reportedTaxon
Verbatim
e0“When grown without competition, Anza had more above-ground plant weight and grain yield and less whole-plant percent nitrogen than Mexicali.”
Claim · model-written summary
Wild oat competition reduced Anza plant weight more than Mexicali.
- Material
- Anzae0
- Treatment
- Wild oat competitione0
- Interactor
- Wild oate0weed
- Outcome
- plant weighte0
- Direction
- larger reductionse0
- Comparator
- Mexicalie0
Not reportedTaxon
Verbatim
e0“Wild oat competition caused larger reductions in plant weight and grain yield, and smaller reductions in percent nitrogen for Anza than for Mexicali.”
Claim · model-written summary
Wild oat competition reduced Anza grain yield more than Mexicali.
- Material
- Anzae0
- Treatment
- Wild oat competitione0
- Interactor
- Wild oate0weed
- Outcome
- grain yielde0
- Direction
- larger reductionse0
- Comparator
- Mexicalie0
Not reportedTaxon
Verbatim
e0“Wild oat competition caused larger reductions in plant weight and grain yield, and smaller reductions in percent nitrogen for Anza than for Mexicali.”
Claim · model-written summary
Wild oat competition reduced Anza nitrogen percentage less than Mexicali.
- Material
- Anzae0
- Treatment
- Wild oat competitione0
- Interactor
- Wild oate0weed
- Outcome
- percent nitrogene0
- Direction
- smaller reductionse0
- Comparator
- Mexicalie0
Not reportedTaxon
Verbatim
e0“Wild oat competition caused larger reductions in plant weight and grain yield, and smaller reductions in percent nitrogen for Anza than for Mexicali.”
Claim · model-written summary
Wild oat competition weakened the response of wheat plant weight to nitrate.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Wild oat competitione0
- Interactor
- Wild oate0weed
- Outcome
- plant weighte0
- Direction
- reduced the effectivenesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wild oat competition reduced the effectiveness of nitrate in increasing plant weight, grain yield, and whole-plant percent nitrogen of wheat.”
Claim · model-written summary
Wild oat competition weakened the response of wheat grain yield to nitrate.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Wild oat competitione0
- Interactor
- Wild oate0weed
- Outcome
- grain yielde0
- Direction
- reduced the effectivenesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wild oat competition reduced the effectiveness of nitrate in increasing plant weight, grain yield, and whole-plant percent nitrogen of wheat.”
Claim · model-written summary
Wild oat competition weakened the response of wheat whole-plant nitrogen percentage to nitrate.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Wild oat competitione0
- Interactor
- Wild oate0weed
- Outcome
- whole-plant percent nitrogene0
- Direction
- reduced the effectivenesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Wild oat competition reduced the effectiveness of nitrate in increasing plant weight, grain yield, and whole-plant percent nitrogen of wheat.”
The same questions in other papers
competition · growth · Triticum aestivum (wheat)Results differ
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31 papers in the same direction as this paper · 3 in the opposite direction
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See all 35 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.