Abstract
A field study was conducted to investigate the effects of field exposure and boll conformation upon fiber color properties for a broad spectrum of cotton genotypes. Sixty-eight genotypes were screened for intrinsic R (subscript d) and +b; 16 of these genotypes were selected for further evaluation. Ten agronomic and fiber property measurements were made on lint and seed from unopened, newly opened and field exposed bolls. A great amount of genotypic variability was shown for intrinsic fiber color (R (subscript d) and +b) and fiber color retention. Genotypes exhibiting higher initial R(subscript d) values showed a greater percent reduction with weathering, compared with genotypes showing lower initial R (subscript d) values. Three boll conformation groups (open-boll, storm-resistant and stormproof) were established and distinct fiber color properties were associated with each: open-boll types exhibited the largest R (subscript d) values and the largest percent reduction due to weathering while the smallest R (subscript d) values and smallest percent reduction resulting from weathering were associated with the stormproof genotypes. The lowest +b values and largest percent reduction from weathering were found for the open-boll genotypes. Stormproof genotypes exhibited the largest +b values and smallest percent reductions due to weathering. Decreasing +b reductions were associated with increasing exposure period when weathering was not aided with a sprinkler irrigation system. Chlorinated water was used in the sprinkler system as an aid to weathering and resulted in continually increasing +b reductions for increasing exposure periods. These reductions result possibly from bleaching, leaching or both..
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Claims 13
Claim · model-written summary
Cotton genotypes showed a great amount of genotypic variability in intrinsic fiber color and fiber color retention.
- Taxon
- American upland cotton
Gossypium hirsutumt0 - Outcome
- intrinsic fiber colore3
- Qualifier
- A great amount of genotypic variabilitye3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e3“A great amount of genotypic variability was shown for intrinsic fiber color (R (subscript d) and +b) and fiber color retention”
Claim · model-written summary
Genotypes with higher initial R(subscript d) values showed a greater percent reduction with weathering than genotypes with lower initial R(subscript d) values.
- Taxon
- American upland cottonGossypium hirsutumt0
- Material
- Genotypes exhibiting higher initial R(subscript d) valuese4
- Outcome
- percent reduction with weatheringe4
- Direction
- greatere4
- Comparator
- genotypes showing lower initial R (subscript d) valuese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e4“Genotypes exhibiting higher initial R(subscript d) values showed a greater percent reduction with weathering, compared with genotypes showing lower initial R (subscript d) values”
Claim · model-written summary
Open-boll types had the largest intrinsic R(subscript d) values.
- Taxon
- American upland cottonGossypium hirsutumt0
- Material
- open-boll typese5
- Outcome
- R (subscript d) valuese5
- Direction
- largeste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e5“open-boll types exhibited the largest R (subscript d) values and the largest percent reduction due to weathering”
Claim · model-written summary
Open-boll types had the largest percent reduction in R(subscript d) due to weathering.
- Taxon
- American upland cottonGossypium hirsutumt0
- Material
- open-boll typese5
- Outcome
- percent reduction due to weatheringe5
- Direction
- largeste5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e5“open-boll types exhibited the largest R (subscript d) values and the largest percent reduction due to weathering”
Claim · model-written summary
Stormproof genotypes had the smallest intrinsic R(subscript d) values.
- Taxon
- American upland cottonGossypium hirsutumt0
- Material
- stormproof genotypese6
- Outcome
- R (subscript d) valuese6
- Direction
- smalleste6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e6“the smallest R (subscript d) values and smallest percent reduction resulting from weathering were associated with the stormproof genotypes”
Claim · model-written summary
Stormproof genotypes had the smallest percent reduction in R(subscript d) from weathering.
- Taxon
- American upland cottonGossypium hirsutumt0
- Material
- stormproof genotypese6
- Outcome
- percent reduction resulting from weatheringe6
- Direction
- smalleste6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e6“the smallest R (subscript d) values and smallest percent reduction resulting from weathering were associated with the stormproof genotypes”
Claim · model-written summary
Open-boll genotypes had the lowest +b values.
- Taxon
- American upland cottonGossypium hirsutumt0
- Material
- open-boll genotypese7
- Outcome
- +b valuese7
- Direction
- loweste7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e7“The lowest +b values and largest percent reduction from weathering were found for the open-boll genotypes”
Claim · model-written summary
Open-boll genotypes had the largest percent reduction in +b from weathering.
- Taxon
- American upland cottonGossypium hirsutumt0
- Material
- open-boll genotypese7
- Outcome
- percent reduction from weatheringe7
- Direction
- largeste7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e7“The lowest +b values and largest percent reduction from weathering were found for the open-boll genotypes”
Claim · model-written summary
Stormproof genotypes had the largest +b values.
- Taxon
- American upland cottonGossypium hirsutumt0
- Material
- Stormproof genotypese1
- Outcome
- +b valuese1
- Direction
- largeste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e1“Stormproof genotypes exhibited the largest +b values and smallest percent reductions due to weathering”
Claim · model-written summary
Stormproof genotypes had the smallest percent reductions in +b due to weathering.
- Taxon
- American upland cottonGossypium hirsutumt0
- Material
- Stormproof genotypese1
- Outcome
- percent reductions due to weatheringe1
- Direction
- smalleste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e1“Stormproof genotypes exhibited the largest +b values and smallest percent reductions due to weathering”
Claim · model-written summary
Decreasing +b reductions were associated with increasing exposure period when weathering was not aided by a sprinkler irrigation system.
- Taxon
- American upland cottonGossypium hirsutumt0
- Treatment
- increasing exposure periode1
- Outcome
- +b reductionse1
- Direction
- Decreasinge1
- Qualifier
- when weathering was not aided with a sprinkler irrigation systeme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e1“Decreasing +b reductions were associated with increasing exposure period when weathering was not aided with a sprinkler irrigation system”
Claim · model-written summary
Chlorinated water used in the sprinkler system as a weathering aid resulted in continually increasing +b reductions with longer exposure, compared with weathering not aided by a sprinkler system.
- Taxon
- American upland cottonGossypium hirsutumt0
- Treatment
- Chlorinated water was used in the sprinkler system as an aid to weatheringe2
- Outcome
- +b reductionse2
- Direction
- increasinge2
- Comparator
- not aided with a sprinkler irrigation systeme1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e1“was not aided with a sprinkler irrigation system”
e2“Chlorinated water was used in the sprinkler system as an aid to weathering and resulted in continually increasing +b reductions for increasing exposure periods”
Claim · model-written summary
The +b reductions possibly result from bleaching, leaching or both.
- Taxon
- American upland cottonGossypium hirsutumt0
- Outcome
- reductionse1
- Qualifier
- possibly from bleaching, leaching or bothe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“American upland cotton”
e1“These reductions result possibly from bleaching, leaching or both”