Abstract
Cottonseed products are a valuable secondary revenue source for cotton (Gossypium hirsutum L.) producers, but how production practices impact cottonseed composition is unclear. This research evaluated the effect on cottonseed composition by varying irrigation and nitrogen (N) fertilization regimes. Four cotton cultivars were grown from 2010 through 2012 under irrigated or dryland conditions and given a fertilizer application of 0 kg N ha -1 , 56 kg N ha -1 , or 112 kg N ha -1 . Ginned seed from the plots were dehulled, and the kernels were analyzed for protein, crude oil, gossypol, soluble carbohydrates, and the oil’s fatty acid distribution. Few cultivar interactions with either irrigation or fertilization were detected. Irrigation increased kernel gossypol (18%) and oil (8%) levels but decreased kernel protein levels (13%). In contrast, the highest rate of N fertilization increased kernel protein concentration (18%) but decreased gossypol (14%), oil (9%), and soluble carbohydrate (3%) levels compared to seed kernels grown without fertilizer. In addition, N fertilization shifted the distribution of the oil’s unsaturated fatty acids toward more oleic acid and less linoleic acid. Practices growers implement to optimize lint production alter some desirable and some less desirable seed compositional traits.
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Claims 10
Claim · model-written summary
Few cultivar interactions with irrigation or fertilization were detected.
- Taxon
- cotton (Gossypium hirsutum L.)
Gossypium hirsutume1 - Outcome
- cultivar interactionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Few cultivar interactions with either irrigation or fertilization were detected”
e1“cotton (Gossypium hirsutum L.) producers”
Claim · model-written summary
Irrigation increased kernel gossypol by 18%.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutume1
- Organ / stage
- kernele0
- Treatment
- Irrigatione0
- Outcome
- gossypole0
- Direction
- increasede0
- Value
- 18%e0
- Comparator
- drylande2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation increased kernel gossypol (18%) and oil (8%) levels but decreased kernel protein levels (13%)”
e1“cotton (Gossypium hirsutum L.) producers”
e2“under irrigated or dryland conditions”
Claim · model-written summary
Irrigation increased kernel oil by 8%.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutume1
- Organ / stage
- kernele0
- Treatment
- Irrigatione0
- Outcome
- oile0
- Direction
- increasede0
- Value
- 8%e0
- Comparator
- drylande2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation increased kernel gossypol (18%) and oil (8%) levels but decreased kernel protein levels (13%)”
e1“cotton (Gossypium hirsutum L.) producers”
e2“under irrigated or dryland conditions”
Claim · model-written summary
Irrigation decreased kernel protein by 13%.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutume1
- Organ / stage
- kernele0
- Treatment
- Irrigatione0
- Outcome
- proteine0
- Direction
- decreasede0
- Value
- 13%e0
- Comparator
- drylande2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation increased kernel gossypol (18%) and oil (8%) levels but decreased kernel protein levels (13%)”
e1“cotton (Gossypium hirsutum L.) producers”
e2“under irrigated or dryland conditions”
Claim · model-written summary
The highest nitrogen rate increased kernel protein by 18%.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutume1
- Organ / stage
- kernele0
- Treatment
- highest rate of N fertilizatione0
- Outcome
- protein concentratione0
- Direction
- increasede0
- Value
- 18%e0
- Comparator
- seed kernels grown without fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest rate of N fertilization increased kernel protein concentration (18%) but decreased gossypol (14%), oil (9%), and soluble carbohydrate (3%) levels compared to seed kernels grown without fertilizer”
e1“cotton (Gossypium hirsutum L.) producers”
Claim · model-written summary
The highest nitrogen rate decreased kernel gossypol by 14%.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutume1
- Organ / stage
- kernele0
- Treatment
- highest rate of N fertilizatione0
- Outcome
- gossypole0
- Direction
- decreasede0
- Value
- 14%e0
- Comparator
- seed kernels grown without fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest rate of N fertilization increased kernel protein concentration (18%) but decreased gossypol (14%), oil (9%), and soluble carbohydrate (3%) levels compared to seed kernels grown without fertilizer”
e1“cotton (Gossypium hirsutum L.) producers”
Claim · model-written summary
The highest nitrogen rate decreased kernel oil by 9%.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutume1
- Organ / stage
- kernele0
- Treatment
- highest rate of N fertilizatione0
- Outcome
- oile0
- Direction
- decreasede0
- Value
- 9%e0
- Comparator
- seed kernels grown without fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest rate of N fertilization increased kernel protein concentration (18%) but decreased gossypol (14%), oil (9%), and soluble carbohydrate (3%) levels compared to seed kernels grown without fertilizer”
e1“cotton (Gossypium hirsutum L.) producers”
Claim · model-written summary
The highest nitrogen rate decreased soluble carbohydrate by 3%.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutume1
- Organ / stage
- kernele0
- Treatment
- highest rate of N fertilizatione0
- Outcome
- soluble carbohydratee0
- Direction
- decreasede0
- Value
- 3%e0
- Comparator
- seed kernels grown without fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest rate of N fertilization increased kernel protein concentration (18%) but decreased gossypol (14%), oil (9%), and soluble carbohydrate (3%) levels compared to seed kernels grown without fertilizer”
e1“cotton (Gossypium hirsutum L.) producers”
Claim · model-written summary
Nitrogen fertilization shifted oil fatty acids toward more oleic acid.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutume1
- Treatment
- N fertilizatione0
- Outcome
- oleic acide0
- Direction
- moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N fertilization shifted the distribution of the oil’s unsaturated fatty acids toward more oleic acid and less linoleic acid”
e1“cotton (Gossypium hirsutum L.) producers”
Claim · model-written summary
Nitrogen fertilization shifted oil fatty acids toward less linoleic acid.
- Taxon
- cotton (Gossypium hirsutum L.)Gossypium hirsutume1
- Treatment
- N fertilizatione0
- Outcome
- linoleic acide0
- Direction
- lesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“N fertilization shifted the distribution of the oil’s unsaturated fatty acids toward more oleic acid and less linoleic acid”
e1“cotton (Gossypium hirsutum L.) producers”
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See all 25 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.