Abstract
In order to develop a better understanding of some yield components, the response of three modern cotton (Gossypium hirsutum L.) cultivars to increasing nitrogen (N) fertiliser application was assessed for lint percentage (LP) and seed weight, as well as seed protein and oil concentrations. Application of N fertiliser led to decreased LP in all three cultivars (by 1.5 percentage points), even if the N-fertiliser rate was above the optimum rate. There was a strong negative correlation between LP and seed mass because seed mass is a component of LP. Seed protein concentration increased, and seed oil concentration decreased, with increasing N fertiliser application. Seed germination was improved in seeds with higher oil concentration; therefore, seed produced with high N fertiliser had reduced seed vigour. It was concluded that little scope exists for further lint-yield increase via LP. For cultivars with small seeds, an integrated system across seed production and crop agronomy can achieve satisfactory seed vigour in the field while also achieving high commercial yields. Future improvements in yield will come from alternative and more complex yield components such as growth habit.
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Claims 8
Claim · model-written summary
Nitrogen fertiliser application decreased lint percentage in all three cotton cultivars by 1.5 percentage points, even above the optimum N rate.
- Taxon
- cotton
Gossypium hirsutume0 - Treatment
- Application of N fertilisere1
- Outcome
- LPe1
- Direction
- decreasede1
- Value
- 1.5 percentage pointse1
- Qualifier
- even if the N-fertiliser rate was above the optimum ratee1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of three modern cotton (Gossypium hirsutum L.) cultivars to increasing nitrogen (N) fertiliser application”
e1“Application of N fertiliser led to decreased LP in all three cultivars (by 1.5 percentage points), even if the N-fertiliser rate was above the optimum rate”
Claim · model-written summary
Lint percentage and seed mass were strongly negatively correlated.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- seed masse2
- Outcome
- correlation between LP and seed masse2
- Direction
- negativee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of three modern cotton (Gossypium hirsutum L.) cultivars to increasing nitrogen (N) fertiliser application”
e2“There was a strong negative correlation between LP and seed mass because seed mass is a component of LP”
Claim · model-written summary
Seed protein concentration increased with increasing N fertiliser application.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- Seede3
- Treatment
- increasing N fertiliser applicatione3
- Outcome
- Seed protein concentratione3
- Direction
- increasede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of three modern cotton (Gossypium hirsutum L.) cultivars to increasing nitrogen (N) fertiliser application”
e3“Seed protein concentration increased, and seed oil concentration decreased, with increasing N fertiliser application”
Claim · model-written summary
Seed oil concentration decreased with increasing N fertiliser application.
- Taxon
- cottonGossypium hirsutume0
- Organ / stage
- Seede3
- Treatment
- increasing N fertiliser applicatione3
- Outcome
- seed oil concentratione3
- Direction
- decreasede3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of three modern cotton (Gossypium hirsutum L.) cultivars to increasing nitrogen (N) fertiliser application”
e3“Seed protein concentration increased, and seed oil concentration decreased, with increasing N fertiliser application”
Claim · model-written summary
Seed germination was improved in seeds with higher oil concentration.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- higher oil concentratione4
- Outcome
- Seed germinatione4
- Direction
- improvede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of three modern cotton (Gossypium hirsutum L.) cultivars to increasing nitrogen (N) fertiliser application”
e4“Seed germination was improved in seeds with higher oil concentration; therefore, seed produced with high N fertiliser had reduced seed vigour”
Claim · model-written summary
Seed produced under high N fertiliser had reduced seed vigour.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- high N fertilisere4
- Outcome
- seed vigoure4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of three modern cotton (Gossypium hirsutum L.) cultivars to increasing nitrogen (N) fertiliser application”
e4“Seed germination was improved in seeds with higher oil concentration; therefore, seed produced with high N fertiliser had reduced seed vigour”
Claim · model-written summary
An integrated seed production and crop agronomy system can achieve satisfactory seed vigour in the field with high commercial yields for small-seeded cultivars.
- Taxon
- cottonGossypium hirsutume0
- Treatment
- an integrated system across seed production and crop agronomye6
- Outcome
- satisfactory seed vigoure6
- Setting
- in the fielde6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of three modern cotton (Gossypium hirsutum L.) cultivars to increasing nitrogen (N) fertiliser application”
e6“For cultivars with small seeds, an integrated system across seed production and crop agronomy can achieve satisfactory seed vigour in the field while also achieving high commercial yields”
Claim · model-written summary
Little scope exists for further lint-yield increase through lint percentage.
- Taxon
- cottonGossypium hirsutume0
- Outcome
- further lint-yield increase via LPe5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the response of three modern cotton (Gossypium hirsutum L.) cultivars to increasing nitrogen (N) fertiliser application”
e5“It was concluded that little scope exists for further lint-yield increase via LP”
The same questions in other papers
nitrogen · growth · Gossypium hirsutum (cotton)Positive and negative results
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- positive
- positive
- positive
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See all 153 papers →fertilization · growth · Gossypium hirsutum (cotton)Positive and negative results
24 papers in the same direction as this paper · 177 in the opposite direction
- positive
- positive
- positive
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See all 202 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.