Abstract
Field studies were conducted in five states at six locations from 2002 through 2003 to evaluate weed control and cotton response to early POST (EPOST), POST/POST-directed spray (PDS), and late POST-directed (LAYBY) systems using glyphosate-trimethylsulfonium salt (TM), s-metolachlor, trifloxysulfuron, prometryn, and MSMA. Early POST applications were made from mid May through mid June; POST/PDS applications were made from early June through mid July; and LAYBY applications were made from early July through mid August. Early season cotton injury and discoloration was minimal (< 1%) with all treatments; mid- and late-season injury was minimal (< 2%) except for trifloxysulfuron POST (11 and 9%, respectively). Annual grasses evaluated included barnyardgrass, broadleaf signalgrass, goosegrass, and large crabgrass. Broadleaf weeds evaluated included entireleaf morningglory, pitted morningglory, sicklepod, and smooth pigweed. For the EPOST, POST/PDS, and LAYBY applications, weeds were at cotyledon to 10 leaf, 1 to 25 leaf, and 2 to 25 leaf stage, respectively. Annual broadleaf and grass control was increased with the addition of s-metolachlor to glyphosate-TM EPOST systems (85 to 98% control) compared with glyphosate-TM EPOST alone (65 to 91% control), except for sicklepod control where equivalent control was observed. Annual grass control was greater with glyphosate-TM plus trifloxysulfuron PDS than with trifloxysulfuron POST or PDS, or trifloxysulfuron plus MSMA PDS (90 to 94% vs. 75 to 83% control). With few exceptions, broadleaf weed control was equivalent for trifloxysulfuron applied POST alone or PDS alone or in combination with glyphosate-TM PDS or MSMA PDS herbicide treatments (81 to 99% control). The addition of a LAYBY herbicide treatment increased broadleaf weed control by 11 to 36 percentage points compared with systems without a LAYBY. Cotton lint yield increased 420 kg/ha with the addition of s-metolachlor to glyphosate-TM EPOST treatments compared with systems without s-metolachlor EPOST. Cotton lint yield was increased 330 to 910 kg/ha with the addition of a POST herbicide treatment compared with systems without a POST/PDS treatment. The addition of a LAYBY herbicide treatment increased cotton lint yield by 440 kg/ha compared with systems without a LAYBY.Nomenclature: Glyphosate-TM, MSMA, prometryn, s-metolachlor, trifloxysulfuron, barnyardgrass, Echinochloa crus-galli (L.) Beauv. ECHCG, broadleaf signalgrass, Brachiaria platyphylla (Griseb.) Nash. BRAPP, entireleaf morningglory, Ipomoea hederacea var. integriuscula Gray. IPOHG, goosegrass, Eleusine indica (L.) Gaertn. ELEIN, arge crabgrass, Digitaria sanguinalis (L.) Scop. DIGSA, pitted morningglory, Ipomoea lacunosa L. IPOLA, sicklepod, Cassia obtusifolia L. CASOB, smooth pigweed, Amaranthus hybridus L. AMACH, cotton, Gossypium hirsutum L. ‘DP 458 RR/BG’, ‘DP 555 RR/BG’, ‘FM 989 RR/BG’, ‘PM 2344 RR/BG’, ‘ST 4793 RR’
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 11
Claim · model-written summary
Early season cotton injury and discoloration was minimal with all treatments.
- Taxon
- cotton
Gossypium hirsutume1 - Outcome
- cotton injury and discoloratione1
- Direction
- minimale1
- Value
- < 1%e1
- Qualifier
- with all treatmentse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Early season cotton injury and discoloration was minimal (< 1%) with all treatments”
Claim · model-written summary
Mid- and late-season cotton injury was minimal for treatments other than trifloxysulfuron POST.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- mid- and late-season injurye2
- Direction
- minimale2
- Value
- < 2%e2
- Qualifier
- except for trifloxysulfuron POSTe2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton response to early POST (EPOST)”
e2“mid- and late-season injury was minimal (< 2%) except for trifloxysulfuron POST (11 and 9%, respectively)”
Claim · model-written summary
Trifloxysulfuron POST caused 11% and 9% mid- and late-season cotton injury.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- trifloxysulfuron POSTe2
- Outcome
- injurye2
- Value
- 11 and 9%e2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton response to early POST (EPOST)”
e2“mid- and late-season injury was minimal (< 2%) except for trifloxysulfuron POST (11 and 9%, respectively)”
Claim · model-written summary
Adding s-metolachlor to glyphosate-TM EPOST increased annual broadleaf and grass control to 85 to 98%, compared with glyphosate-TM EPOST alone.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- the addition of s-metolachlor to glyphosate-TM EPOST systemse3
- Interactor
- Annual broadleaf and grasse3weed
- Outcome
- Annual broadleaf and grass controle3
- Direction
- increasede3
- Value
- 85 to 98% controle3
- Comparator
- glyphosate-TM EPOST alonee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton response to early POST (EPOST)”
e3“Annual broadleaf and grass control was increased with the addition of s-metolachlor to glyphosate-TM EPOST systems (85 to 98% control) compared with glyphosate-TM EPOST alone (65 to 91% control)”
Claim · model-written summary
Sicklepod control was equivalent with the s-metolachlor addition to glyphosate-TM EPOST.
- Taxon
- cottonGossypium hirsutume0
- Interactor
- sicklepode4weed
- Outcome
- sicklepod controle4
- Direction
- equivalente4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton response to early POST (EPOST)”
e4“except for sicklepod control where equivalent control was observed”
Claim · model-written summary
Annual grass control was greater with glyphosate-TM plus trifloxysulfuron PDS than with trifloxysulfuron POST or PDS, or trifloxysulfuron plus MSMA PDS.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- glyphosate-TM plus trifloxysulfuron PDSe5
- Interactor
- Annual grasse5weed
- Outcome
- Annual grass controle5
- Direction
- greatere5
- Value
- 90 to 94% vs. 75 to 83% controle5
- Comparator
- trifloxysulfuron POST or PDS, or trifloxysulfuron plus MSMA PDSe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton response to early POST (EPOST)”
e5“Annual grass control was greater with glyphosate-TM plus trifloxysulfuron PDS than with trifloxysulfuron POST or PDS, or trifloxysulfuron plus MSMA PDS (90 to 94% vs. 75 to 83% control)”
Claim · model-written summary
With few exceptions, broadleaf weed control was equivalent among trifloxysulfuron POST and PDS treatments, alone or combined with glyphosate-TM PDS or MSMA PDS.
- Taxon
- cottonGossypium hirsutume0
- Interactor
- broadleaf weede6weed
- Outcome
- broadleaf weed controle6
- Direction
- equivalente6
- Value
- 81 to 99% controle6
- Qualifier
- With few exceptionse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton response to early POST (EPOST)”
e6“With few exceptions, broadleaf weed control was equivalent for trifloxysulfuron applied POST alone or PDS alone or in combination with glyphosate-TM PDS or MSMA PDS herbicide treatments (81 to 99% control)”
Claim · model-written summary
Adding a LAYBY herbicide treatment increased broadleaf weed control by 11 to 36 percentage points.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- The addition of a LAYBY herbicide treatmente7
- Interactor
- broadleaf weede7weed
- Outcome
- broadleaf weed controle7
- Direction
- increasede7
- Value
- 11 to 36 percentage pointse7
- Comparator
- systems without a LAYBYe7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“cotton response to early POST (EPOST)”
e7“The addition of a LAYBY herbicide treatment increased broadleaf weed control by 11 to 36 percentage points compared with systems without a LAYBY”
Claim · model-written summary
Adding s-metolachlor to glyphosate-TM EPOST increased cotton lint yield by 420 kg/ha.
- Taxon
- CottonGossypium hirsutume1
- Treatment
- the addition of s-metolachlor to glyphosate-TM EPOST treatmentse1
- Outcome
- Cotton lint yielde1
- Direction
- increasede1
- Value
- 420 kg/hae1
- Comparator
- systems without s-metolachlor EPOSTe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Cotton lint yield increased 420 kg/ha with the addition of s-metolachlor to glyphosate-TM EPOST treatments compared with systems without s-metolachlor EPOST”
Claim · model-written summary
Adding a POST herbicide treatment increased cotton lint yield by 330 to 910 kg/ha.
- Taxon
- CottonGossypium hirsutume1
- Treatment
- the addition of a POST herbicide treatmente1
- Outcome
- Cotton lint yielde1
- Direction
- increasede1
- Value
- 330 to 910 kg/hae1
- Comparator
- systems without a POST/PDS treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Cotton lint yield was increased 330 to 910 kg/ha with the addition of a POST herbicide treatment compared with systems without a POST/PDS treatment”
Claim · model-written summary
Adding a LAYBY herbicide treatment increased cotton lint yield by 440 kg/ha.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- The addition of a LAYBY herbicide treatmente1
- Outcome
- cotton lint yielde1
- Direction
- increasede1
- Value
- 440 kg/hae1
- Comparator
- systems without a LAYBYe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The addition of a LAYBY herbicide treatment increased cotton lint yield by 440 kg/ha compared with systems without a LAYBY”
The same questions in other papers
application · control · Gossypium hirsutum (cotton)Positive and negative results
10 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
11 papers more in this group
See all 15 papers →herbicide · quality: grain · Gossypium hirsutum (cotton)Positive and negative results
9 papers in the same direction as this paper · 16 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- positive
- negative
23 papers more in this group
See all 27 papers →herbicide · weed · Gossypium hirsutum (cotton)Positive and negative results
99 papers in the same direction as this paper · 7 in the opposite direction · 1 reporting no difference from an alternative
- positive
- positive
- positive
104 papers more in this group
See all 108 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.