Abstract
Bean plants grown under various controlled moisture conditions in a greenhouse, and sprayed with 2,4-D, showed differences in catalase activity, carbon dioxide output, total nitrogen content, and visual response. Catalase and respiration of leaves were stimulated or depressed depending upon soil moisture, concentration of 2,4-D, and time after treatment, but there was not always a positive correlation between the two activities. Protein in leaves, with a few noteworthy exceptions, was decreased by 2,4-D. Extremes among leaf responses were induced in plants recently deprived of optimum moisture. Catalase, respiration, and protein content of stems were greatly increased by 2,4-D. This was especially noticeable in plants in moist soil. Soil treatments with 2,4-D solution followed by adequate moisture effected, in above-ground parts of plants, responses resembling those measured after foliage sprays on beans in moist soil. Fasciation of underground parts resulted only from a soil application involving relatively dilute (50 p.p.m.) concentration of 2,4-D.
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Claims 7
Claim · model-written summary
Leaf catalase and respiration were stimulated or depressed depending on moisture, 2,4-D concentration, and time.
- Taxon
- BEAN PLANTSt0
- Treatment
- 2,4-De0
- Outcome
- Catalase and respiration of leavese0
- Direction
- stimulated or depressede0
- Qualifier
- depending upon soil moisture, concentration of 2,4-D, and time after treatmente0
Not reportedComparator
Verbatim
t0“BEAN PLANTS”
e0“Catalase and respiration of leaves were stimulated or depressed depending upon soil moisture, concentration of 2,4-D, and time after treatment”
Claim · model-written summary
Leaf catalase and respiration did not always correlate positively.
Not reportedOrgan / stageDirection
Verbatim
t0“BEAN PLANTS”
e0“there was not always a positive correlation between the two activities”
Claim · model-written summary
2,4-D generally decreased leaf protein.
- Taxon
- BEAN PLANTSt0
- Treatment
- 2,4-De0
- Outcome
- Protein in leavese0
- Direction
- decreasede0
- Qualifier
- with a few noteworthy exceptionse0
Not reportedComparator
Verbatim
t0“BEAN PLANTS”
e0“Protein in leaves, with a few noteworthy exceptions, was decreased by 2,4-D.”
Claim · model-written summary
Recent deprivation of optimal moisture induced extreme leaf responses.
- Taxon
- BEAN PLANTSt0
- Treatment
- recently deprived of optimum moisturee0
- Outcome
- Extremes among leaf responsese0
- Direction
- Extremese0
Not reportedComparator
Verbatim
t0“BEAN PLANTS”
e0“Extremes among leaf responses were induced in plants recently deprived of optimum moisture.”
Claim · model-written summary
2,4-D greatly increased stem catalase, respiration, and protein content, especially in moist soil.
- Taxon
- BEAN PLANTSt0
- Treatment
- 2,4-De0
- Outcome
- Catalase, respiration, and protein content of stemse0
- Direction
- greatly increasede0
- Qualifier
- especially noticeable in plants in moist soile0
Not reportedComparator
Verbatim
t0“BEAN PLANTS”
e0“Catalase, respiration, and protein content of stems were greatly increased by 2,4-D. This was especially noticeable in plants in moist soil.”
Claim · model-written summary
Soil 2,4-D followed by adequate moisture gave above-ground responses resembling foliage sprays in moist soil.
Verbatim
t0“BEAN PLANTS”
e0“Soil treatments with 2,4-D solution followed by adequate moisture effected, in above-ground parts of plants, responses resembling those measured after foliage sprays on beans in moist soil.”
Claim · model-written summary
Only relatively dilute soil 2,4-D at 50 p.p.m. caused underground fasciation.
- Taxon
- BEAN PLANTSt0
- Treatment
- soil application involving relatively dilute (50 p.p.m.) concentration of 2,4-De0
- Outcome
- Fasciation of underground partse0
Not reportedComparatorDirection
Verbatim
t0“BEAN PLANTS”
e0“Fasciation of underground parts resulted only from a soil application involving relatively dilute (50 p.p.m.) concentration of 2,4-D.”
The same questions in other papers
2,4-D · physiology: antioxidant enzymes · Phaseolus vulgaris (common bean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- 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.