Abstract
Abstract Bean plants ( Phaseolus vulgaris L. cv. Black Valentine) treated with 2,4‐dichlorophenoxyacetic acid (2,4‐D) and 4‐chlorophenoxyacetic acid (PCPA) absorb and accumulate considerably more N ‐1‐naphthylphthalamic acid (naptalam) than untreated plants. All concentrations of 2,4‐D from 5 x 10 ‐8 to 5 x 10 ‐4 M were effective, peak stimulation occurring at 3 x 10 ‐5 M . Plants treated with this concentration took up 186% more naptalam than control plants. It was shown that the leaf area (on a per g dry weight basis) was influenced most by growth regulator treatment. The leaf area of plants treated with 5 x 10 ‐5 M 2,4‐D contained 575% more naptalam than the leaf area of untreated plants. The influence of PCPA on naptalam uptake by bean plants was similar to that of 2,4‐D but less effective.
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Claims 8
Claim · model-written summary
2,4‐dichlorophenoxyacetic acid increased naptalam uptake and accumulation in bean plants.
Verbatim
e0“Bean plants ( Phaseolus vulgaris L. cv. Black Valentine) treated with 2,4‐dichlorophenoxyacetic acid (2,4‐D) and 4‐chlorophenoxyacetic acid (PCPA) absorb and accumulate considerably more N ‐1‐naphthylphthalamic acid (naptalam) than untreated plants.”
Claim · model-written summary
4‐chlorophenoxyacetic acid increased naptalam uptake and accumulation in bean plants.
Verbatim
e0“Bean plants ( Phaseolus vulgaris L. cv. Black Valentine) treated with 2,4‐dichlorophenoxyacetic acid (2,4‐D) and 4‐chlorophenoxyacetic acid (PCPA) absorb and accumulate considerably more N ‐1‐naphthylphthalamic acid (naptalam) than untreated plants.”
Claim · model-written summary
All tested 2,4-D concentrations were effective for naptalam uptake.
Not reportedComparatorDirection
Verbatim
e0“All concentrations of 2,4‐D from 5 x 10 ‐8 to 5 x 10 ‐4 M were effective, peak stimulation occurring at 3 x 10 ‐5 M .”
t0“Bean Plants”
Claim · model-written summary
Peak stimulation occurred at 3 x 10 ‐5 M 2,4-D.
Verbatim
e0“All concentrations of 2,4‐D from 5 x 10 ‐8 to 5 x 10 ‐4 M were effective, peak stimulation occurring at 3 x 10 ‐5 M .”
t0“Bean Plants”
Claim · model-written summary
Treated plants took up 186% more naptalam than controls.
Verbatim
e0“Plants treated with this concentration took up 186% more naptalam than control plants.”
t0“Bean Plants”
Claim · model-written summary
Leaf area per dry weight was most influenced by growth regulator treatment.
- Taxon
- Bean Plantst0
- Treatment
- growth regulator treatmente0
- Outcome
- leaf areae0
- Qualifier
- on a per g dry weight basise0
Not reportedComparatorDirection
Verbatim
e0“It was shown that the leaf area (on a per g dry weight basis) was influenced most by growth regulator treatment.”
t0“Bean Plants”
Claim · model-written summary
Leaf area under 5 x 10 ‐5 M 2,4-D contained 575% more naptalam than untreated plants.
Verbatim
e0“The leaf area of plants treated with 5 x 10 ‐5 M 2,4‐D contained 575% more naptalam than the leaf area of untreated plants.”
t0“Bean Plants”
Claim · model-written summary
PCPA was less effective than 2,4-D for naptalam uptake.
Verbatim
e0“The influence of PCPA on naptalam uptake by bean plants was similar to that of 2,4‐D but less effective.”
The same questions in other papers
2,4-D · molecular: metabolites · Phaseolus vulgaris (common bean)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction
- negative
- negative
- 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.