Abstract
A field study was conducted at the Experimental Farm of AMU, Aligarh (UP), India on five rice cultivars namely IR-8, Ratna, Pallavi, Swarnaprabhprabha and Pusa-33 to assess the effect of nitrogen on photosynthesis and yield parameters of rice. Leaf area index, stomatal conductance, chlorophyll content, photosynthesis, canopy photosynthesis, total dry matter were determined at 30 and 50 days after planting (DAP) and at flowering stages. The panicle number, grain panicle-1 and grain yield were determined at harvest. At 100 kg N ha−1 the leaf area index, photosynthesis, stomatal conductance, chlorophyll content, canopy photosynthesis, total dry matter, number of panicles, grain panicle-1 and grain yield showed significant increase over control by 46.2, 20.5, 31.1, 36.8, 86.0, 36.8, 29.0, 96.5 and 12.7%, respectively.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
At 100 kg N ha−1, leaf area index increased significantly over control by 46.2.
- Taxon
- Rice
Oryza sativat0
- Treatment
- 100 kg N ha−1e0
- Outcome
- leaf area indexe0
- Direction
- increasee0
- Value
- 46.2e0
- Comparator
- controle0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Applied Nitrogen on Photosynthesis and Yield Parameters of Various Rice Cultivars”
e0“At 100 kg N ha−1 the leaf area index, photosynthesis, stomatal conductance, chlorophyll content, canopy photosynthesis, total dry matter, number of panicles, grain panicle-1 and grain yield showed significant increase over control by 46.2, 20.5, 31.1, 36.8, 86.0, 36.8, 29.0, 96.5 and 12.7%, respectively.”
Claim · model-written summary
At 100 kg N ha−1, photosynthesis increased significantly over control by 20.5.
- Taxon
- Rice
Oryza sativat0
- Treatment
- 100 kg N ha−1e0
- Outcome
- photosynthesise0
- Direction
- increasee0
- Value
- 20.5e0
- Comparator
- controle0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Applied Nitrogen on Photosynthesis and Yield Parameters of Various Rice Cultivars”
e0“At 100 kg N ha−1 the leaf area index, photosynthesis, stomatal conductance, chlorophyll content, canopy photosynthesis, total dry matter, number of panicles, grain panicle-1 and grain yield showed significant increase over control by 46.2, 20.5, 31.1, 36.8, 86.0, 36.8, 29.0, 96.5 and 12.7%, respectively.”
Claim · model-written summary
At 100 kg N ha−1, stomatal conductance increased significantly over control by 31.1.
- Taxon
- Rice
Oryza sativat0
- Treatment
- 100 kg N ha−1e0
- Outcome
- stomatal conductancee0
- Direction
- increasee0
- Value
- 31.1e0
- Comparator
- controle0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Applied Nitrogen on Photosynthesis and Yield Parameters of Various Rice Cultivars”
e0“At 100 kg N ha−1 the leaf area index, photosynthesis, stomatal conductance, chlorophyll content, canopy photosynthesis, total dry matter, number of panicles, grain panicle-1 and grain yield showed significant increase over control by 46.2, 20.5, 31.1, 36.8, 86.0, 36.8, 29.0, 96.5 and 12.7%, respectively.”
Claim · model-written summary
At 100 kg N ha−1, chlorophyll content increased significantly over control by 36.8.
- Taxon
- Rice
Oryza sativat0
- Treatment
- 100 kg N ha−1e0
- Outcome
- chlorophyll contente0
- Direction
- increasee0
- Value
- 36.8e0
- Comparator
- controle0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Applied Nitrogen on Photosynthesis and Yield Parameters of Various Rice Cultivars”
e0“At 100 kg N ha−1 the leaf area index, photosynthesis, stomatal conductance, chlorophyll content, canopy photosynthesis, total dry matter, number of panicles, grain panicle-1 and grain yield showed significant increase over control by 46.2, 20.5, 31.1, 36.8, 86.0, 36.8, 29.0, 96.5 and 12.7%, respectively.”
Claim · model-written summary
At 100 kg N ha−1, canopy photosynthesis increased significantly over control by 86.0.
- Taxon
- Rice
Oryza sativat0
- Treatment
- 100 kg N ha−1e0
- Outcome
- canopy photosynthesise0
- Direction
- increasee0
- Value
- 86.0e0
- Comparator
- controle0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Applied Nitrogen on Photosynthesis and Yield Parameters of Various Rice Cultivars”
e0“At 100 kg N ha−1 the leaf area index, photosynthesis, stomatal conductance, chlorophyll content, canopy photosynthesis, total dry matter, number of panicles, grain panicle-1 and grain yield showed significant increase over control by 46.2, 20.5, 31.1, 36.8, 86.0, 36.8, 29.0, 96.5 and 12.7%, respectively.”
Claim · model-written summary
At 100 kg N ha−1, total dry matter increased significantly over control by 36.8.
- Taxon
- Rice
Oryza sativat0
- Treatment
- 100 kg N ha−1e0
- Outcome
- total dry mattere0
- Direction
- increasee0
- Value
- 36.8e0
- Comparator
- controle0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Applied Nitrogen on Photosynthesis and Yield Parameters of Various Rice Cultivars”
e0“At 100 kg N ha−1 the leaf area index, photosynthesis, stomatal conductance, chlorophyll content, canopy photosynthesis, total dry matter, number of panicles, grain panicle-1 and grain yield showed significant increase over control by 46.2, 20.5, 31.1, 36.8, 86.0, 36.8, 29.0, 96.5 and 12.7%, respectively.”
Claim · model-written summary
At 100 kg N ha−1, number of panicles increased significantly over control by 29.0.
- Taxon
- Rice
Oryza sativat0
- Treatment
- 100 kg N ha−1e0
- Outcome
- number of paniclese0
- Direction
- increasee0
- Value
- 29.0e0
- Comparator
- controle0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Applied Nitrogen on Photosynthesis and Yield Parameters of Various Rice Cultivars”
e0“At 100 kg N ha−1 the leaf area index, photosynthesis, stomatal conductance, chlorophyll content, canopy photosynthesis, total dry matter, number of panicles, grain panicle-1 and grain yield showed significant increase over control by 46.2, 20.5, 31.1, 36.8, 86.0, 36.8, 29.0, 96.5 and 12.7%, respectively.”
Claim · model-written summary
At 100 kg N ha−1, grain panicle-1 increased significantly over control by 96.5.
- Taxon
- Rice
Oryza sativat0
- Treatment
- 100 kg N ha−1e0
- Outcome
- grain panicle-1e0
- Direction
- increasee0
- Value
- 96.5e0
- Comparator
- controle0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Applied Nitrogen on Photosynthesis and Yield Parameters of Various Rice Cultivars”
e0“At 100 kg N ha−1 the leaf area index, photosynthesis, stomatal conductance, chlorophyll content, canopy photosynthesis, total dry matter, number of panicles, grain panicle-1 and grain yield showed significant increase over control by 46.2, 20.5, 31.1, 36.8, 86.0, 36.8, 29.0, 96.5 and 12.7%, respectively.”
Claim · model-written summary
At 100 kg N ha−1, grain yield increased significantly over control by 12.7%.
- Taxon
- Rice
Oryza sativat0
- Treatment
- 100 kg N ha−1e0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 12.7%e0
- Comparator
- controle0
Not reportedSetting
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Effect of Applied Nitrogen on Photosynthesis and Yield Parameters of Various Rice Cultivars”
e0“At 100 kg N ha−1 the leaf area index, photosynthesis, stomatal conductance, chlorophyll content, canopy photosynthesis, total dry matter, number of panicles, grain panicle-1 and grain yield showed significant increase over control by 46.2, 20.5, 31.1, 36.8, 86.0, 36.8, 29.0, 96.5 and 12.7%, respectively.”
The same questions in other papers
nitrogen · physiology: pigments · Oryza sativa (rice)Results differ
72 papers in the same direction as this paper · 12 in the opposite direction
- no effect
- negative
- no effect
81 papers more in this group
See all 85 papers →nitrogen · physiology: gas exchange · Oryza sativa (rice)Positive and negative results
6 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
4 papers more in this group
See all 8 papers →nitrogen · physiology: photosynthesis · Oryza sativa (rice)Positive and negative results
80 papers in the same direction as this paper · 13 in the opposite direction · 3 reporting no difference from an alternative
- negative
- negative
- negative
93 papers more in this group
See all 97 papers →nitrogen · growth · Oryza sativa (rice)Positive and negative results
401 papers in the same direction as this paper · 101 in the opposite direction · 8 reporting no difference from an alternative
- negative
- negative
- negative
507 papers more in this group
See all 511 papers →nitrogen · yield · Oryza sativa (rice)Positive and negative results
1,802 papers in the same direction as this paper · 193 in the opposite direction · 49 reporting no difference from an alternative
- negative
- negative
- negative
2,041 papers more in this group
See all 2,045 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.