Abstract
Cotton cultivars response to different doses of nitrogen for radiation interception, canopy development, growth and seed yield were studied in 2006. The experiment was laid out in randomized complete block design with split arrangement under the climatic conditions of Bahawalpur. Data on seed yield, total dry matter (TDM), leaf area index (LAI), fraction of intercepted radiation (Fi), accumulated radiation interception during the growth season (Sa) and radiation use efficiency (RUE) were taken into account. TDM pattern showed sigmoid growth curve for both cultivars and nitrogen levels and showed strong relationship (R 2 = 0.98) with the accumulated intercepted radiation (Sa) for the season. Mean maximum value of fraction of incident PAR (Fi) remained 90% at 120 days after sowing (DAS) harvest due to maximum crop canopy development. Cultivar NIAB-111 produced 0.81 g m -2 of TDM for each MJ of accumulated PAR and nitrogen @185 kg ha -1 statistically proved to be better in converting radiation into dry matter production.
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Claims 5
Claim · model-written summary
Total dry matter followed a sigmoid growth pattern across cultivars and nitrogen levels.
- Taxon
- Cotton
Gossypium hirsutumt0 - Outcome
- TDM pattern showed sigmoid growth curve for both cultivars and nitrogen levelse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Quantification of growth, yield and radiation use efficiency of promising cotton cultivars at varying nitrogen levels.”
e0“TDM pattern showed sigmoid growth curve for both cultivars and nitrogen levels”
Claim · model-written summary
Total dry matter was strongly related to accumulated intercepted radiation, with R squared 0.98.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- showed strong relationship (R 2 = 0.98) with the accumulated intercepted radiation (Sa) for the seasone0
- Qualifier
- R 2 = 0.98e0
Not reportedSettingDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Quantification of growth, yield and radiation use efficiency of promising cotton cultivars at varying nitrogen levels.”
e0“showed strong relationship (R 2 = 0.98) with the accumulated intercepted radiation (Sa) for the season”
Claim · model-written summary
Mean maximum intercepted PAR fraction was 90% at 120 days after sowing.
- Taxon
- CottonGossypium hirsutumt0
- Outcome
- Mean maximum value of fraction of incident PAR (Fi) remained 90% at 120 days after sowing (DAS) harveste0
- Value
- 90%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Quantification of growth, yield and radiation use efficiency of promising cotton cultivars at varying nitrogen levels.”
e0“Mean maximum value of fraction of incident PAR (Fi) remained 90% at 120 days after sowing (DAS) harvest”
Claim · model-written summary
NIAB-111 produced 0.81 g m -2 dry matter per MJ accumulated PAR.
- Taxon
- CottonGossypium hirsutumt0
- Material
- NIAB-111e0
- Outcome
- Cultivar NIAB-111 produced 0.81 g m -2 of TDM for each MJ of accumulated PARe0
- Value
- 0.81 g m -2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Quantification of growth, yield and radiation use efficiency of promising cotton cultivars at varying nitrogen levels.”
e0“Cultivar NIAB-111 produced 0.81 g m -2 of TDM for each MJ of accumulated PAR”
Claim · model-written summary
Nitrogen at 185 kg ha -1 was statistically better at converting radiation into dry matter.
- Taxon
- CottonGossypium hirsutumt0
- Treatment
- nitrogen @185 kg ha -1e0
- Outcome
- nitrogen @185 kg ha -1 statistically proved to be better in converting radiation into dry matter productione0
- Direction
- bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Quantification of growth, yield and radiation use efficiency of promising cotton cultivars at varying nitrogen levels.”
e0“nitrogen @185 kg ha -1 statistically proved to be better in converting radiation into dry matter production”
The same questions in other papers
nitrogen · yield · Gossypium hirsutum (cotton)Positive and negative results
285 papers in the same direction as this paper · 53 in the opposite direction · 4 reporting no difference from an alternative
- no effect
- negative
- positive
339 papers more in this group
See all 343 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.