Abstract
Poor seed germination and early seedling damage often reduce plant populations in the north‐eastern cotton ( Gossypium hirsutum L.) producing region of the USA. A field study was conducted at Clayton, NC, on a Dothan sandy loam (fine‐loamy, siliceous, thermic Plinthic Kandiudult) to investigate responses of cotton reproductive development to reduced plant population. All flowers on plants grown at 2 and 12 plants m −2 were tagged so that associations among boll and lint quantity and quality, flowering date, and fruiting position could be determined. On plants grown at 2 plants m −2 , 33 and 65% of their fiber came from flowers initiated before 88 days after planting (DAP) in 1992 and 1993, respectively. Plants grown at 12 plants m −2 produced 63 and 88% of their fiber from flowers initiated before 88 DAP in 1992 and 1993, respectively. Plant population did not affect total lint yield, however. Because of favorable late‐season weather, plants grown at 2 plants m −2 produced more bolls on vegetative branches and at more distal sympodial positions than did plants grown at 12 plants m −2 . Boll weight and micronaire were generally higher for earlier bolls at all positions for the lower population density. Later bolls exhibited poorer boll and fiber properties, indicating negative effects of reduced heat unit accumulation by later bolls. Our findings indicate that replanting, which might delay stand establishment by 3 to 4 wk, would be of little help toward improving fiber yield because it would rely more heavily on later produced bolls.
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 10
Claim · model-written summary
At 2 plants m-2, 33% of fiber came from flowers initiated before 88 days after planting in 1992.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- 2 plants m −2e0
- Outcome
- their fiber came from flowers initiated before 88 days after planting (DAP)e0
- Value
- 33e0
- Qualifier
- 1992e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“On plants grown at 2 plants m −2 , 33 and 65% of their fiber came from flowers initiated before 88 days after planting (DAP) in 1992 and 1993, respectively”
Claim · model-written summary
At 2 plants m-2, 65% of fiber came from flowers initiated before 88 days after planting in 1993.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 2 plants m −2e0
- Outcome
- their fiber came from flowers initiated before 88 days after planting (DAP)e0
- Value
- 65%e0
- Qualifier
- 1993e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“On plants grown at 2 plants m −2 , 33 and 65% of their fiber came from flowers initiated before 88 days after planting (DAP) in 1992 and 1993, respectively”
Claim · model-written summary
At 12 plants m-2, 63% of fiber came from flowers initiated before 88 DAP in 1992.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 12 plants m −2e0
- Outcome
- their fiber from flowers initiated before 88 DAPe0
- Value
- 63e0
- Qualifier
- 1992e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“Plants grown at 12 plants m −2 produced 63 and 88% of their fiber from flowers initiated before 88 DAP in 1992 and 1993, respectively”
Claim · model-written summary
At 12 plants m-2, 88% of fiber came from flowers initiated before 88 DAP in 1993.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 12 plants m −2e0
- Outcome
- their fiber from flowers initiated before 88 DAPe0
- Value
- 88%e0
- Qualifier
- 1993e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“Plants grown at 12 plants m −2 produced 63 and 88% of their fiber from flowers initiated before 88 DAP in 1992 and 1993, respectively”
Claim · model-written summary
Plant population did not affect total lint yield.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Plant populatione0
- Outcome
- total lint yielde0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“Plant population did not affect total lint yield”
Claim · model-written summary
Plants at 2 plants m-2 produced more bolls on vegetative branches and at more distal sympodial positions than plants at 12 plants m-2.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- 2 plants m −2e0
- Outcome
- bolls on vegetative branches and at more distal sympodial positionse0
- Direction
- moree0
- Comparator
- 12 plants m −2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“plants grown at 2 plants m −2 produced more bolls on vegetative branches and at more distal sympodial positions than did plants grown at 12 plants m −2”
Claim · model-written summary
Boll weight and micronaire were generally higher for earlier bolls at all positions at the lower population density.
- Taxon
- CottonGossypium hirsutumt0
- Organ / stage
- earlier bollse0
- Treatment
- lower population densitye0
- Outcome
- Boll weight and micronairee0
- Direction
- highere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“Boll weight and micronaire were generally higher for earlier bolls at all positions for the lower population density”
Claim · model-written summary
Later bolls exhibited poorer boll and fiber properties.
- Taxon
- CottonGossypium hirsutumt0
- Organ / stage
- Later bollse0
- Outcome
- boll and fiber propertiese0
- Direction
- poorere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“Later bolls exhibited poorer boll and fiber properties”
Claim · model-written summary
The authors interpret the poorer later-boll properties as a negative effect of reduced heat unit accumulation by later bolls.
- Taxon
- CottonGossypium hirsutumt0
- Organ / stage
- later bollse0
- Treatment
- reduced heat unit accumulatione0
- Outcome
- negative effectse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“negative effects of reduced heat unit accumulation by later bolls”
Claim · model-written summary
Replanting, which might delay stand establishment by 3 to 4 weeks, would be of little help for improving fiber yield because it would rely more on later produced bolls.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- improving fiber yielde0
- Qualifier
- replanting, which might delay stand establishment by 3 to 4 wke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton”
e0“replanting, which might delay stand establishment by 3 to 4 wk, would be of little help toward improving fiber yield because it would rely more heavily on later produced bolls”
The same questions in other papers
density · quality: grain · Gossypium hirsutum (cotton)Positive and negative results
34 papers in the same direction as this paper · 34 in the opposite direction
- positive
- positive
- positive
65 papers more in this group
See all 69 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.