Abstract
Cotton ( Gossypium hirsutum L.) growers are faced with rising production costs and static or declining crop prices. One strategy with potential for reducing production costs entails growing cotton in ultra‐narrow rows with elevated plant populations. A 2‐yr field study was conducted in the Brazos Bottoms near College Station, TX to determine the differences in vegetative growth and yield parameters of cotton grown in ultra‐narrow and conventionally spaced rows. Four row spacings of 19, 38.1, 76.2, and 101.6 cm were planted with populations of 39.4 to 45.8, 18.2 to 20.7, 13.1 to 13.6, and 7.9 to 9.9 plants m −2 , respectively. At crop maturity, plant height and node counts were reduced in the cotton grown in the 19‐cm row spacing. Canopy closure occurred more rapidly in the 19‐ and 38.1‐cm row spacings than in the wider row spacings. In 1997, a relatively wet growing season, yields were not affected by the row‐spacing treatments. In 1998, a dry growing season, yields in the 19‐ and 38.1‐cm row spacings were greater than those in the wider row spacings. The 19‐cm row spacing had 84.6% of the harvestable bolls at the first fruiting position and 76.1% of the bolls on Nodes 6 through 10, both percentages being significantly greater than those observed in the wider row spacings. Fiber length tended to be reduced in the 19‐cm row spacing relative to the other row spacings. Ultra‐narrow row cotton appears to be a viable option for producers to attempt to reduce costs while maintaining yields.
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Claims 9
Claim · model-written summary
The 19-cm rows reduced cotton plant height.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- 19‐cm row spacinge0
- Outcome
- plant heighte0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At crop maturity, plant height and node counts were reduced in the cotton grown in the 19‐cm row spacing.”
Claim · model-written summary
The 19-cm rows reduced cotton node counts.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- 19‐cm row spacinge0
- Outcome
- node countse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At crop maturity, plant height and node counts were reduced in the cotton grown in the 19‐cm row spacing.”
Claim · model-written summary
Canopy closed faster in the 19- and 38.1-cm spacings than wider rows.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 19‐ and 38.1‐cm row spacingse0
- Outcome
- Canopy closuree0
- Direction
- more rapidlye0
- Comparator
- wider row spacingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Canopy closure occurred more rapidly in the 19‐ and 38.1‐cm row spacings than in the wider row spacings.”
t0“Growth and Yield Comparisons of Cotton Planted in Conventional and Ultra‐Narrow Row Spacings”
Claim · model-written summary
Row spacing did not affect yields in the wet 1997 season.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- row‐spacing treatmentse0
- Outcome
- yieldse0
- Direction
- not affectede0
- Qualifier
- a relatively wet growing seasone0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1997, a relatively wet growing season, yields were not affected by the row‐spacing treatments.”
t0“Growth and Yield Comparisons of Cotton Planted in Conventional and Ultra‐Narrow Row Spacings”
Claim · model-written summary
In dry 1998, 19- and 38.1-cm rows yielded more than wider rows.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 19‐ and 38.1‐cm row spacingse0
- Outcome
- yieldse0
- Direction
- greatere0
- Qualifier
- a dry growing seasone0
- Comparator
- wider row spacingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In 1998, a dry growing season, yields in the 19‐ and 38.1‐cm row spacings were greater than those in the wider row spacings.”
t0“Growth and Yield Comparisons of Cotton Planted in Conventional and Ultra‐Narrow Row Spacings”
Claim · model-written summary
The 19-cm spacing had 84.6% of harvestable bolls at the first fruiting position, significantly more than wider rows.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 19‐cm row spacinge0
- Outcome
- harvestable bolls at the first fruiting positione0
- Direction
- greatere0
- Value
- 84.6%e0
- Comparator
- wider row spacingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 19‐cm row spacing had 84.6% of the harvestable bolls at the first fruiting position and 76.1% of the bolls on Nodes 6 through 10, both percentages being significantly greater than those observed in the wider row spacings.”
t0“Growth and Yield Comparisons of Cotton Planted in Conventional and Ultra‐Narrow Row Spacings”
Claim · model-written summary
The 19-cm spacing had 76.1% of bolls on nodes 6 through 10, significantly more than wider rows.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 19‐cm row spacinge0
- Outcome
- bolls on Nodes 6 through 10e0
- Direction
- greatere0
- Value
- 76.1%e0
- Comparator
- wider row spacingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 19‐cm row spacing had 84.6% of the harvestable bolls at the first fruiting position and 76.1% of the bolls on Nodes 6 through 10, both percentages being significantly greater than those observed in the wider row spacings.”
t0“Growth and Yield Comparisons of Cotton Planted in Conventional and Ultra‐Narrow Row Spacings”
Claim · model-written summary
Fiber length tended to be reduced in 19-cm rows.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 19‐cm row spacinge0
- Outcome
- Fiber lengthe0
- Direction
- reducede0
- Comparator
- other row spacingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Fiber length tended to be reduced in the 19‐cm row spacing relative to the other row spacings.”
t0“Growth and Yield Comparisons of Cotton Planted in Conventional and Ultra‐Narrow Row Spacings”
Claim · model-written summary
Ultra-narrow row cotton appeared viable for reducing costs while maintaining yield.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- viable option for producers to attempt to reduce costs while maintaining yieldse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ultra‐narrow row cotton appears to be a viable option for producers to attempt to reduce costs while maintaining yields.”
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