Abstract
Field studies were conducted in 1972 and 1986 to determine the effect of selected, commercial insecticides and acaricides (pesticides) on growth, fruiting patterns, and yield of ‘Acala SJ-2’ cotton, Gossypium hirsutum L. There was a strong tendency in the 1972 study toward less boll retention in plots treated “season-long” with methyl parathion at all test sites, as well as a significant reduction in the weight of lint cotton at one site. In the 1986 study, four weekly applications of methyl parathion significantly reduced mesophyll conductance, boll retention, number of mature and open bolls per plant, number of first position bolls per plant on mainstem nodes 5-7, weight of lint cotton at harvest, and dry weight accumulation of fruiting forms. None of the other pesticides tested in the 1986 study, including chlordimeform, significantly increased any plant growth parameter when compared with the control.
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Claims 9
Claim · model-written summary
Season-long methyl parathion tended to reduce boll retention in 1972 at all sites.
- Taxon
- cotton
Gossypium hirsutume0 - Material
- Acala SJ-2e1
- Treatment
- “season-long” with methyl parathione0
- Outcome
- boll retentione0
- Direction
- lesse0
- Qualifier
- at all test sitese0
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“There was a strong tendency in the 1972 study toward less boll retention in plots treated “season-long” with methyl parathion at all test sites, as well as a significant reduction in the weight of lint cotton at one site.”
t0“cotton”
e1“Field studies were conducted in 1972 and 1986 to determine the effect of selected, commercial insecticides and acaricides (pesticides) on growth, fruiting patterns, and yield of ‘Acala SJ-2’ cotton, Gossypium hirsutum L.”
e2“None of the other pesticides tested in the 1986 study, including chlordimeform, significantly increased any plant growth parameter when compared with the control.”
Claim · model-written summary
Season-long methyl parathion significantly reduced lint cotton weight at one site in 1972.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- “season-long” with methyl parathione0
- Outcome
- weight of lint cottone0
- Direction
- reductione0
- Qualifier
- at one sitee0
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“There was a strong tendency in the 1972 study toward less boll retention in plots treated “season-long” with methyl parathion at all test sites, as well as a significant reduction in the weight of lint cotton at one site.”
t0“cotton”
e1“Field studies were conducted in 1972 and 1986 to determine the effect of selected, commercial insecticides and acaricides (pesticides) on growth, fruiting patterns, and yield of ‘Acala SJ-2’ cotton, Gossypium hirsutum L.”
e2“None of the other pesticides tested in the 1986 study, including chlordimeform, significantly increased any plant growth parameter when compared with the control.”
Claim · model-written summary
Four weekly methyl parathion applications significantly reduced mesophyll conductance.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- four weekly applications of methyl parathione0
- Outcome
- mesophyll conductancee0
- Direction
- reducede0
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“In the 1986 study, four weekly applications of methyl parathion significantly reduced mesophyll conductance, boll retention, number of mature and open bolls per plant, number of first position bolls per plant on mainstem nodes 5-7, weight of lint cotton at harvest, and dry weight accumulation of fruiting forms.”
t0“cotton”
e1“Field studies were conducted in 1972 and 1986 to determine the effect of selected, commercial insecticides and acaricides (pesticides) on growth, fruiting patterns, and yield of ‘Acala SJ-2’ cotton, Gossypium hirsutum L.”
e2“None of the other pesticides tested in the 1986 study, including chlordimeform, significantly increased any plant growth parameter when compared with the control.”
Claim · model-written summary
Four weekly methyl parathion applications significantly reduced boll retention.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- four weekly applications of methyl parathione0
- Outcome
- boll retentione0
- Direction
- reducede0
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“In the 1986 study, four weekly applications of methyl parathion significantly reduced mesophyll conductance, boll retention, number of mature and open bolls per plant, number of first position bolls per plant on mainstem nodes 5-7, weight of lint cotton at harvest, and dry weight accumulation of fruiting forms.”
t0“cotton”
e1“Field studies were conducted in 1972 and 1986 to determine the effect of selected, commercial insecticides and acaricides (pesticides) on growth, fruiting patterns, and yield of ‘Acala SJ-2’ cotton, Gossypium hirsutum L.”
e2“None of the other pesticides tested in the 1986 study, including chlordimeform, significantly increased any plant growth parameter when compared with the control.”
Claim · model-written summary
Four weekly methyl parathion applications significantly reduced mature and open boll numbers.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- four weekly applications of methyl parathione0
- Outcome
- number of mature and open bolls per plante0
- Direction
- reducede0
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“In the 1986 study, four weekly applications of methyl parathion significantly reduced mesophyll conductance, boll retention, number of mature and open bolls per plant, number of first position bolls per plant on mainstem nodes 5-7, weight of lint cotton at harvest, and dry weight accumulation of fruiting forms.”
t0“cotton”
e1“Field studies were conducted in 1972 and 1986 to determine the effect of selected, commercial insecticides and acaricides (pesticides) on growth, fruiting patterns, and yield of ‘Acala SJ-2’ cotton, Gossypium hirsutum L.”
e2“None of the other pesticides tested in the 1986 study, including chlordimeform, significantly increased any plant growth parameter when compared with the control.”
Claim · model-written summary
Four weekly methyl parathion applications significantly reduced first position boll numbers.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- four weekly applications of methyl parathione0
- Outcome
- number of first position bolls per plante0
- Direction
- reducede0
- Qualifier
- on mainstem nodes 5-7e0
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“In the 1986 study, four weekly applications of methyl parathion significantly reduced mesophyll conductance, boll retention, number of mature and open bolls per plant, number of first position bolls per plant on mainstem nodes 5-7, weight of lint cotton at harvest, and dry weight accumulation of fruiting forms.”
t0“cotton”
e1“Field studies were conducted in 1972 and 1986 to determine the effect of selected, commercial insecticides and acaricides (pesticides) on growth, fruiting patterns, and yield of ‘Acala SJ-2’ cotton, Gossypium hirsutum L.”
e2“None of the other pesticides tested in the 1986 study, including chlordimeform, significantly increased any plant growth parameter when compared with the control.”
Claim · model-written summary
Four weekly methyl parathion applications significantly reduced lint weight at harvest.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- four weekly applications of methyl parathione0
- Outcome
- weight of lint cotton at harveste0
- Direction
- reducede0
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“In the 1986 study, four weekly applications of methyl parathion significantly reduced mesophyll conductance, boll retention, number of mature and open bolls per plant, number of first position bolls per plant on mainstem nodes 5-7, weight of lint cotton at harvest, and dry weight accumulation of fruiting forms.”
t0“cotton”
e1“Field studies were conducted in 1972 and 1986 to determine the effect of selected, commercial insecticides and acaricides (pesticides) on growth, fruiting patterns, and yield of ‘Acala SJ-2’ cotton, Gossypium hirsutum L.”
e2“None of the other pesticides tested in the 1986 study, including chlordimeform, significantly increased any plant growth parameter when compared with the control.”
Claim · model-written summary
Four weekly methyl parathion applications significantly reduced dry weight accumulation of fruiting forms.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- four weekly applications of methyl parathione0
- Outcome
- dry weight accumulation of fruiting formse0
- Direction
- reducede0
- Comparator
- controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“In the 1986 study, four weekly applications of methyl parathion significantly reduced mesophyll conductance, boll retention, number of mature and open bolls per plant, number of first position bolls per plant on mainstem nodes 5-7, weight of lint cotton at harvest, and dry weight accumulation of fruiting forms.”
t0“cotton”
e1“Field studies were conducted in 1972 and 1986 to determine the effect of selected, commercial insecticides and acaricides (pesticides) on growth, fruiting patterns, and yield of ‘Acala SJ-2’ cotton, Gossypium hirsutum L.”
e2“None of the other pesticides tested in the 1986 study, including chlordimeform, significantly increased any plant growth parameter when compared with the control.”
Claim · model-written summary
Other pesticides including chlordimeform did not significantly increase any plant growth parameter in 1986.
- Taxon
- cotton
Gossypium hirsutumt0 - Treatment
- chlordimeforme0
- Outcome
- any plant growth parametere0
- Direction
- increasede0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“None of the other pesticides tested in the 1986 study, including chlordimeform, significantly increased any plant growth parameter when compared with the control.”
t0“cotton”
e1“Field studies were conducted in 1972 and 1986 to determine the effect of selected, commercial insecticides and acaricides (pesticides) on growth, fruiting patterns, and yield of ‘Acala SJ-2’ cotton, Gossypium hirsutum L.”
e2“None of the other pesticides tested in the 1986 study, including chlordimeform, significantly increased any plant growth parameter when compared with the control.”
The same questions in other papers
parathion-methyl · yield · Gossypium hirsutum (cotton)Results differ
1 paper in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
parathion-methyl · growth · Gossypium hirsutum (cotton)Positive and negative results
1 in the opposite direction
- positive
climate site · organism · Gossypium hirsutum (cotton)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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.