Abstract
Cotton ( Gossypium hirsutum L.) yield and quality can be affected by altered fruiting patterns related to the abscission of fruiting forms. This field study quantified the effects of flower removal during various stages of reproductive development on subsequent yield development, boll development, and fiber properties. Effects of early‐, mid‐, and late‐season flower loss on cotton reproductive development was determined. Various flower removal treatments were imposed on two cultivars at Clayton, NC, during 1991 and 1992. Early flower removal treatments (3rd week and earlier) delayed boll development, but no significant reduction in yield was found at season's end. Later flower removals (4th week and later) significantly reduced total fiber yields (13–33%) compared with early‐season removals (1st, 2nd, and through 3rd week) and no removal. Boll weight was positively correlated with fiber properties and was related to the amount of competition among developing bolls. The largest bolls resulted from treatments that had the largest negative effect on yield. Micronaire was the only fiber variable affected by flower removal, with increased values associated with later removal. Data indicate that late‐season flower losses (4th week and later) are the most injurious to yield, with significant yield reductions occurring from even the least severe, late‐season removal treatment of 6th week and later flowers. Early loss (3rd week and earlier) of fruit can be tolerated if the season allows sufficient time for compensatory reproductive growth and if further losses due to plant stress or insect damage are controlled.
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Claims 9
Claim · model-written summary
Early flower removal (3rd week and earlier) delayed boll development in cotton.
- Taxon
- Cotton
Gossypium hirsutumt0 - Treatment
- Early flower removal treatments (3rd week and earlier)e1
- Outcome
- boll developmente1
- Direction
- delayede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Response to Seasonal Patterns of Flower Removal”
e1“Early flower removal treatments (3rd week and earlier) delayed boll development”
Claim · model-written summary
Early flower removal did not significantly reduce cotton yield at season end.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Early flower removal treatments (3rd week and earlier)e1
- Outcome
- yielde2
- Direction
- no significant reductione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Response to Seasonal Patterns of Flower Removal”
e1“Early flower removal treatments (3rd week and earlier) delayed boll development”
e2“no significant reduction in yield was found”
Claim · model-written summary
Later flower removal (4th week and later) reduced total fiber yields by 13–33% relative to early-season removals and no removal.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- Later flower removals (4th week and later)e3
- Outcome
- total fiber yieldse3
- Direction
- reducede3
- Value
- 13–33%e3
- Comparator
- early-season removals (1st, 2nd, and through 3rd week) and no removale3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Response to Seasonal Patterns of Flower Removal”
e3“Later flower removals (4th week and later) significantly reduced total fiber yields (13–33%) compared with early-season removals (1st, 2nd, and through 3rd week) and no removal”
Claim · model-written summary
Boll weight was positively correlated with fiber properties in cotton.
- Taxon
- CottonGossypium hirsutumt0
- Organ / stage
- Boll weighte4
- Outcome
- fiber propertiese4
- Direction
- positively correlatede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Response to Seasonal Patterns of Flower Removal”
e4“Boll weight was positively correlated with fiber properties”
Claim · model-written summary
The treatments with the largest negative effect on yield produced the largest bolls in cotton.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- treatments that had the largest negative effect on yielde5
- Outcome
- largest bollse5
- Direction
- largeste5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Response to Seasonal Patterns of Flower Removal”
e5“The largest bolls resulted from treatments that had the largest negative effect on yield”
Claim · model-written summary
Later flower removal increased micronaire values in cotton fiber.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- later removale6
- Outcome
- Micronairee6
- Direction
- increased valuese6
- Qualifier
- the only fiber variable affected by flower removale6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Response to Seasonal Patterns of Flower Removal”
e6“Micronaire was the only fiber variable affected by flower removal, with increased values associated with later removal”
Claim · model-written summary
Late-season flower losses (4th week and later) were the most injurious to cotton yield.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- flower losses (4th week and later)e7
- Outcome
- yielde7
- Direction
- most injuriouse7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Response to Seasonal Patterns of Flower Removal”
e7“Data indicate that late‐season flower losses (4th week and later) are the most injurious to yield”
Claim · model-written summary
Removal of flowers at the 6th week and later significantly reduced cotton yield, even for the least severe late-season removal.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- removal treatment of 6th week and later flowerse0
- Outcome
- yield reductionse0
- Direction
- reductionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Response to Seasonal Patterns of Flower Removal”
e0“significant yield reductions occurring from even the least severe, late‐season removal treatment of 6th week and later flowers”
Claim · model-written summary
Early fruit loss (3rd week and earlier) can be tolerated in cotton if the season allows time for compensatory reproductive growth.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- Early loss (3rd week and earlier) of fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Cotton Response to Seasonal Patterns of Flower Removal”
e0“Early loss (3rd week and earlier) of fruit can be tolerated if the season allows sufficient time for compensatory reproductive growth”