Abstract
A field study was conducted at the Maricopa Agricultural Center to determine the influence of plant water status at the time of defoliation on the effectiveness of defoliants and the yield of Pima cotton. Irrigation termination dates of 3 and 20 September and 8 October were used to achieve different levels of plant water stress at the time defoliants were applied (26 October). A single application of defoliants was not adequate to defoliate the cotton under the conditions of this test. The 3 September irrigation termination date resulted in the highest percentage of defoliation (63 %). CWSI and plant water content (RWC) measurements indicated that the irrigation termination treatments resulted in large differences in plant water stress at defoliation time. There was a significant increase in the percent defoliation as the CWSI values increased from 0.54 to 0.99.
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Claims 4
Claim · model-written summary
One defoliant application was inadequate to defoliate cotton under the test conditions.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- A single application of defoliantse0
- Outcome
- defoliate the cottone0
- Direction
- not adequatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A single application of defoliants was not adequate to defoliate the cotton under the conditions of this test”
Claim · model-written summary
The 3 September irrigation termination yielded the highest defoliation, 63%.
- Taxon
- Pima Cottont0
- Treatment
- 3 September irrigation termination datee0
- Outcome
- percentage of defoliatione0
- Direction
- higheste0
- Value
- 63 %e0
Not reportedComparator
Verbatim
e0“The 3 September irrigation termination date resulted in the highest percentage of defoliation (63 %)”
t0“Pima Cotton”
Claim · model-written summary
Irrigation termination treatments produced large differences in plant water stress at defoliation.
- Taxon
- Pima Cottont0
- Treatment
- irrigation termination treatmentse0
- Outcome
- plant water stresse0
- Direction
- large differencese0
Not reportedComparator
Verbatim
e0“CWSI and plant water content (RWC) measurements indicated that the irrigation termination treatments resulted in large differences in plant water stress at defoliation time”
t0“Pima Cotton”
Claim · model-written summary
Percent defoliation significantly increased as CWSI increased from 0.54 to 0.99.
Verbatim
e0“There was a significant increase in the percent defoliation as the CWSI values increased from 0.54 to 0.99”
t0“Pima Cotton”
The same questions in other papers
defoliant · organism · Gossypium hirsutum (cotton)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- no effect
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.