Abstract
Early season thrips infestations and preemergence (PRE) herbicide applications and their interaction with weather can impact early season cotton growth. Research was conducted in 2013 and 2014 in Mississippi to evaluate the impact of planting date, varietal maturity, and PRE herbicide on thrips infestations in cotton. Delta and Pine Land (DP) 0912 B2RF (short-season), and DP 1252 B2RF (full season) cotton varieties, were planted in mid-April, mid-May, late-May, and mid-June. Acceleron® N seed treatment (thiamethoxam + pyraclostrobin +abamectin) was utilized on seed at each location. Fluometuron + S-metolachlor was applied PRE at 1.12 + 1.07 kg ai ha-1and a non-herbicide treated check was included for comparison purposes. Cotton biomass at the two-leaf stage was greatest when DP 0912 B2RF was planted in late-May at 3.2 g per five plants. Cotton treated with fluometuron + S- metolachlor PRE had less biomass at the two-leaf stage than cotton not treated with a PRE herbicide. Immature thrips counts were greatest on late-May planted cotton at both the two- and four-leaf stages. Cotton height at the four-leaf stage was greatest when DP 0912 B2RF was planted in mid-June or in the absence of PRE herbicide application. Delayed maturity was observed when planting occurred after mid-May. Cotton treated with S-metolachlor + fluometuron yielded significantly less than cotton not treated with a PRE herbicide. Lint yields were greatest when DP 0912 B2RF was planted in mid-April, mid-May, and late-May or with DP 1252 B2RF planted in mid-April and mid-May. Lint yields from these combinations ranged from 2195 kg ha-1 to 2429 kg ha-1.
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Claims 9
Claim · model-written summary
DP 0912 planted in late May had greatest two-leaf biomass, 3.2 g per five plants.
- Taxon
- Cotton
Gossypium hirsutumt0 - Material
- DP 0912 B2RFe0
- Treatment
- planted in late-Maye0
- Outcome
- Cotton biomasse0
- Direction
- greateste0
- Value
- 3.2 g per five plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton biomass at the two-leaf stage was greatest when DP 0912 B2RF was planted in late-May at 3.2 g per five plants.”
t0“Cotton”
Claim · model-written summary
PRE herbicide reduced two-leaf biomass compared with no PRE herbicide.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- fluometuron + S- metolachlor PREe0
- Outcome
- biomasse0
- Direction
- lesse0
- Comparator
- cotton not treated with a PRE herbicidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton treated with fluometuron + S- metolachlor PRE had less biomass at the two-leaf stage than cotton not treated with a PRE herbicide.”
t0“Cotton”
Claim · model-written summary
Late May planting produced greatest immature thrips counts at two and four leaves.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- late-May plantede0
- Outcome
- Immature thrips countse0
- Direction
- greateste0
ThripsOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Immature thrips counts were greatest on late-May planted cotton at both the two- and four-leaf stages.”
t0“Cotton”
Claim · model-written summary
DP 0912 planted in mid June had greatest four-leaf height.
- Taxon
- CottonGossypium hirsutumt0
- Material
- DP 0912 B2RFe0
- Treatment
- planted in mid-Junee0
- Outcome
- Cotton heighte0
- Direction
- greateste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton height at the four-leaf stage was greatest when DP 0912 B2RF was planted in mid-June or in the absence of PRE herbicide application.”
t0“Cotton”
Claim · model-written summary
Four-leaf cotton height was greatest without PRE herbicide.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- absence of PRE herbicide applicatione0
- Outcome
- Cotton heighte0
- Direction
- greateste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton height at the four-leaf stage was greatest when DP 0912 B2RF was planted in mid-June or in the absence of PRE herbicide application.”
t0“Cotton”
Claim · model-written summary
Planting after mid May delayed maturity.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- planting occurred after mid-Maye0
- Outcome
- maturitye0
- Direction
- Delayede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delayed maturity was observed when planting occurred after mid-May.”
t0“Cotton”
Claim · model-written summary
PRE herbicide significantly lowered lint yield compared with no PRE herbicide.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- S-metolachlor + fluometurone0
- Outcome
- yieldede0
- Direction
- lesse0
- Comparator
- cotton not treated with a PRE herbicidee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cotton treated with S-metolachlor + fluometuron yielded significantly less than cotton not treated with a PRE herbicide.”
t0“Cotton”
Claim · model-written summary
DP 0912 had greatest lint yields at mid April, mid May and late May planting.
- Taxon
- CottonGossypium hirsutumt0
- Material
- DP 0912 B2RFe0
- Treatment
- planted in mid-April, mid-May, and late-Maye0
- Outcome
- Lint yieldse0
- Direction
- greateste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Lint yields were greatest when DP 0912 B2RF was planted in mid-April, mid-May, and late-May”
t0“Cotton”
Claim · model-written summary
DP 1252 had greatest lint yields at mid April and mid May planting.
- Taxon
- CottonGossypium hirsutumt0
- Material
- DP 1252 B2RFe0
- Treatment
- planted in mid-April and mid-Maye0
- Outcome
- Lint yieldse0
- Value
- 2195 kg ha-1 to 2429 kg ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“DP 1252 B2RF planted in mid-April and mid-May. Lint yields from these combinations ranged from 2195 kg ha-1 to 2429 kg ha-1.”
t0“Cotton”
The same questions in other papers
fluometuron · yield · Gossypium hirsutum (cotton)Results differ
8 papers in the same direction as this paper · 13 in the opposite direction
- positive
- positive
- positive
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See all 22 papers →metolachlor · growth · Gossypium hirsutum (cotton)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
fluometuron · growth · Gossypium hirsutum (cotton)Results agree
2 papers in the same direction as this paper
- negative
- negative
herbicide · growth · Gossypium hirsutum (cotton)Results differ
22 papers in the same direction as this paper · 12 in the opposite direction
- positive
- positive
- positive
31 papers more in this group
See all 35 papers →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.