Abstract
SummaryExperiments were conducted under growth room conditions to evaluate the effect of sublethal concentrations (0.1 and 0.5 ppm) of atrazine, simazine, terbutryne and 2-methoxy-4-butylamino-6-isopropyIamino-s-triazine (GS-14254) on the growth characteristics and chemical composition of bush beans, Phaseolus vulgaris cv. Tendergreen. Without exception, foliar application of the four chemicals increased the protein and amino acid contents of the leaves of the treated plants. Significant increases in plant height and in the fresh and dry weights of the leaves were noted on all three dates when plants treated with 0.5 ppm atrazine were measured. The range of increase in protein content of the leaves was: atrazine at 0.1 ppm, 27–81 %, at 0.5 ppm 52–143%; simazine at 0.1 ppm 21–58%, at 0.5 ppm 20–28%; terbutryne at 0.1 ppm 22–148%, at 0.5 ppm 18–74%; and GS-14254 at 0.1 ppm 10–108%, at 0.5 ppm 21–76%. The reduced contents of starch and of total and reducing sugars seem to account for the increased protein contents of the leaves.
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Claims 11
Claim · model-written summary
Four foliar chemicals increased leaf protein and amino acids.
- Taxon
- Bean Plantst0
- Treatment
- four chemicalse0
- Outcome
- protein and amino acid contents of the leavese0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“foliar application of the four chemicals increased the protein and amino acid contents of the leaves”
t0“Bean Plants”
Claim · model-written summary
Atrazine at 0.5 ppm significantly increased height and leaf fresh and dry weights.
- Taxon
- Bean Plantst0
- Treatment
- 0.5 ppm atrazinee0
- Outcome
- plant height and in the fresh and dry weights of the leavese0
- Direction
- increasese0
Not reportedComparator
Verbatim
e0“Significant increases in plant height and in the fresh and dry weights of the leaves were noted on all three dates when plants treated with 0.5 ppm atrazine were measured.”
t0“Bean Plants”
Claim · model-written summary
Atrazine at 0.1 ppm increased leaf protein by 27–81 %.
- Taxon
- Bean Plantst0
- Treatment
- atrazine at 0.1 ppme0
- Outcome
- protein content of the leavese0
- Direction
- increasee0
- Value
- 27–81 %e0
Not reportedComparator
Verbatim
e0“The range of increase in protein content of the leaves was: atrazine at 0.1 ppm, 27–81 %”
t0“Bean Plants”
Claim · model-written summary
Atrazine at 0.5 ppm increased leaf protein by 52–143%.
Not reportedComparatorOutcomeDirection
Verbatim
e0“at 0.5 ppm 52–143%”
t0“Bean Plants”
Claim · model-written summary
Simazine at 0.1 ppm increased leaf protein by 21–58%.
Not reportedComparatorOutcomeDirection
Verbatim
e0“simazine at 0.1 ppm 21–58%”
t0“Bean Plants”
Claim · model-written summary
Simazine at 0.5 ppm increased leaf protein by 20–28%.
Not reportedComparatorOutcomeDirection
Verbatim
e0“at 0.5 ppm 20–28%”
t0“Bean Plants”
Claim · model-written summary
Terbutryne at 0.1 ppm increased leaf protein by 22–148%.
Not reportedComparatorOutcomeDirection
Verbatim
e0“terbutryne at 0.1 ppm 22–148%”
t0“Bean Plants”
Claim · model-written summary
Terbutryne at 0.5 ppm increased leaf protein by 18–74%.
Not reportedComparatorOutcomeDirection
Verbatim
e0“at 0.5 ppm 18–74%”
t0“Bean Plants”
Claim · model-written summary
GS-14254 at 0.1 ppm increased leaf protein by 10–108%.
Not reportedComparatorOutcomeDirection
Verbatim
e0“GS-14254 at 0.1 ppm 10–108%”
t0“Bean Plants”
Claim · model-written summary
GS-14254 at 0.5 ppm increased leaf protein by 21–76%.
Not reportedComparatorOutcomeDirection
Verbatim
e0“at 0.5 ppm 21–76%”
t0“Bean Plants”
Claim · model-written summary
Reduced starch and sugars may explain higher leaf protein.
Verbatim
e0“The reduced contents of starch and of total and reducing sugars seem to account for the increased protein contents of the leaves.”
t0“Bean Plants”
The same questions in other papers
atrazine · growth · Phaseolus vulgaris (common bean)Results differ
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
atrazine · quality: protein · Phaseolus vulgaris (common bean)Results agree
1 paper in the same direction as this paper
- 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.