Abstract
Abstract Success stories of wide row cotton production have generated producer interest across the cotton belt. The objective of this study was to quantify the effect of row spacing on (1) cotton growth and development and (2) lint yield and fiber quality in Georgia. The cotton cultivar Deltapine DP 1646 (Bollgard 2, XtendFlex; Bayer Crop Science) was planted in 2021 and 2022 in Tifton, GA, at row spacings of 91 cm, 122 cm, 152 cm, and 183 cm. Although canopy closure was delayed in wider row spacings compared to the 91‐cm spacing, all other crop growth and development trends did not differ among row spacings. Similarly, row spacing had no effect on the incidence of boll rot/hard lock. The 91‐cm row spacing yielded 1734 kg lint ha −1 . The 183‐cm row spacing reduced yield by 15% compared with the grower's standard row spacing of 91 cm. Fiber quality parameters did not differ among row spacing treatments. Seed costs can be reduced in all wide row systems evaluated for cotton, and the 122 and 152‐cm row spacings had similar yields to the 91‐cm row spacing. However, Georgia growers produce peanuts ( Arachis hypogea L.) and corn ( Zea mays L.), the most common rotational crops for cotton producers, using a 91‐cm row spacing. Consequently, the simplest transition to wide row production would be the 183‐cm spacing, which incurred yield penalties in the current study. Thus, a 91‐cm row spacing is still the most feasible option for Georgia cotton producers.
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Claims 8
Claim · model-written summary
Canopy closure was delayed in wider row spacings compared with the 91 cm spacing in cotton.
- Taxon
- cotton
Gossypium hirsutume1 - Treatment
- wider row spacingse2
- Outcome
- canopy closuree2
- Direction
- delayede2
- Comparator
- 91‐cm spacinge2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The cotton cultivar Deltapine DP 1646 (Bollgard 2, XtendFlex; Bayer Crop Science) was planted in 2021 and 2022 in Tifton, GA, at row spacings of 91 cm, 122 cm, 152 cm, and 183 cm”
e2“Although canopy closure was delayed in wider row spacings compared to the 91‐cm spacing”
Claim · model-written summary
Other cotton growth and development trends did not differ among row spacings.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- row spacingse2
- Outcome
- all other crop growth and development trendse2
- Direction
- did not differe2
- Comparator
- among row spacingse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The cotton cultivar Deltapine DP 1646 (Bollgard 2, XtendFlex; Bayer Crop Science) was planted in 2021 and 2022 in Tifton, GA, at row spacings of 91 cm, 122 cm, 152 cm, and 183 cm”
e2“all other crop growth and development trends did not differ among row spacings”
Claim · model-written summary
Row spacing had no effect on the incidence of boll rot/hard lock in cotton.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- row spacinge3
- Outcome
- incidence of boll rot/hard locke3
- Direction
- no effecte3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The cotton cultivar Deltapine DP 1646 (Bollgard 2, XtendFlex; Bayer Crop Science) was planted in 2021 and 2022 in Tifton, GA, at row spacings of 91 cm, 122 cm, 152 cm, and 183 cm”
e3“Similarly, row spacing had no effect on the incidence of boll rot/hard lock”
Claim · model-written summary
The 91 cm row spacing yielded 1734 kg lint per hectare in cotton.
- Taxon
- cottonGossypium hirsutume1
- Outcome
- yielde4
- Value
- 1734 kg lint ha −1e4
- Qualifier
- 91‐cm row spacinge4
- Setting
- Tifton, GAe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The cotton cultivar Deltapine DP 1646 (Bollgard 2, XtendFlex; Bayer Crop Science) was planted in 2021 and 2022 in Tifton, GA, at row spacings of 91 cm, 122 cm, 152 cm, and 183 cm”
e4“The 91‐cm row spacing yielded 1734 kg lint ha −1”
Claim · model-written summary
The 183 cm row spacing reduced cotton yield by 15% compared with the grower standard of 91 cm.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- 183‐cm row spacinge5
- Outcome
- yielde5
- Direction
- reducede5
- Value
- 15%e5
- Comparator
- grower's standard row spacing of 91 cme5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The cotton cultivar Deltapine DP 1646 (Bollgard 2, XtendFlex; Bayer Crop Science) was planted in 2021 and 2022 in Tifton, GA, at row spacings of 91 cm, 122 cm, 152 cm, and 183 cm”
e5“The 183‐cm row spacing reduced yield by 15% compared with the grower's standard row spacing of 91 cm”
Claim · model-written summary
Fiber quality parameters of cotton did not differ among row spacing treatments.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- row spacinge6
- Outcome
- Fiber quality parameterse6
- Direction
- did not differe6
- Comparator
- among row spacing treatmentse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The cotton cultivar Deltapine DP 1646 (Bollgard 2, XtendFlex; Bayer Crop Science) was planted in 2021 and 2022 in Tifton, GA, at row spacings of 91 cm, 122 cm, 152 cm, and 183 cm”
e6“Fiber quality parameters did not differ among row spacing treatments”
Claim · model-written summary
The 122 and 152 cm row spacings gave cotton yields similar to the 91 cm spacing.
- Taxon
- cottonGossypium hirsutume1
- Treatment
- 122 and 152‐cm row spacingse7
- Outcome
- yieldse7
- Direction
- similare7
- Comparator
- 91‐cm row spacinge7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The cotton cultivar Deltapine DP 1646 (Bollgard 2, XtendFlex; Bayer Crop Science) was planted in 2021 and 2022 in Tifton, GA, at row spacings of 91 cm, 122 cm, 152 cm, and 183 cm”
e7“the 122 and 152‐cm row spacings had similar yields to the 91‐cm row spacing”
Claim · model-written summary
A 91 cm row spacing is still the most feasible option for cotton producers in Georgia.
- Taxon
- cottonGossypium hirsutume2
- Outcome
- most feasible optione2
- Setting
- Georgiae2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Thus, a 91‐cm row spacing is still the most feasible option for Georgia cotton producers”
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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.