Paper · 2017 · Agricultural science digest

Response of local rice (Oryza sativa L.) cultivars to different nitrogen levels under rainfed upland conditions of Nagaland

R. Lalrinzuali; T. Gohain

8
claims
16
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

A field experiment was conducted during the Kharif season of 2014 to assess the response of local rice (Oryza sativa L.) cultivars to different levels of nitrogen under rainfed upland conditions of Nagaland. Treatments consisted of factorial combination of 5 nitrogen levels viz., 0, 20, 40, 60, 80 N kg/ha and 2 cultivars viz., ‘Apaghi’ and ‘Inglongkiri’. The results of the study showed that increasing levels of nitrogen significantly enhanced growth characteristics and increased yield attributes of the upland rice cultivars. Application of 80 kg N/ha significantly enhanced plant height, number of green leaves per plant, number of tillers per running meter, crop growth rate (CGR), leaf area index (LAI) and root volume. The nitrogen dose at 80 kg/ha also recorded maximum number of grains per panicle, length of panicle, weight of panicle and the overall grain yield of 3197.00 kg/ha. Between the cultivars tested, the cultivar ‘Apaghi’ was found to be superior recording significantly higher panicle length and weight, number of grains per panicle and test weight ultimately recording the highest grain and straw yields of 3139.69 kg/ha and 4318.33 kg/ha respectively over the cultivar Inglongkiri.

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Claims 8

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Increasing nitrogen improved rice growth and yield attributes.

Taxon
local rice (Oryza sativa L.) cultivarsOryza sativat0
Treatment
increasing levels of nitrogene0
Outcome
growth characteristics and increased yield attributese0
Direction
enhancede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“increasing levels of nitrogen significantly enhanced growth characteristics and increased yield attributes of the upland rice cultivars”

✓ located verbatim in the source · abstract, characters 394–529 · show in text ↑
t0

“local rice (Oryza sativa L.) cultivars”

✓ located verbatim in the source · title, characters 12–50 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

At 80 kg N/ha, rice plant height, green leaf number and tiller number increased significantly.

Taxon
local rice (Oryza sativa L.) cultivarsOryza sativat0
Treatment
80 kg N/hae0
Outcome
plant height, number of green leaves per plant, number of tillers per running metere0
Direction
enhancede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Application of 80 kg N/ha significantly enhanced plant height, number of green leaves per plant, number of tillers per running meter, crop growth rate (CGR), leaf area index (LAI) and root volume.”

✓ located verbatim in the source · abstract, characters 531–727 · show in text ↑
t0

“local rice (Oryza sativa L.) cultivars”

✓ located verbatim in the source · title, characters 12–50 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

At 80 kg N/ha, crop growth rate, leaf area index and root volume increased significantly.

Taxon
local rice (Oryza sativa L.) cultivarsOryza sativat0
Treatment
80 kg N/hae0
Outcome
crop growth rate (CGR), leaf area index (LAI) and root volumee0
Direction
enhancede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Application of 80 kg N/ha significantly enhanced plant height, number of green leaves per plant, number of tillers per running meter, crop growth rate (CGR), leaf area index (LAI) and root volume.”

✓ located verbatim in the source · abstract, characters 531–727 · show in text ↑
t0

“local rice (Oryza sativa L.) cultivars”

✓ located verbatim in the source · title, characters 12–50 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 80 kg/ha nitrogen dose gave maximum grains per panicle, panicle length and panicle weight.

Taxon
local rice (Oryza sativa L.) cultivarsOryza sativat0
Treatment
80 kg/hae0
Outcome
number of grains per panicle, length of panicle, weight of paniclee0
Direction
maximume0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The nitrogen dose at 80 kg/ha also recorded maximum number of grains per panicle, length of panicle, weight of panicle and the overall grain yield of 3197.00 kg/ha.”

✓ located verbatim in the source · abstract, characters 728–892 · show in text ↑
t0

“local rice (Oryza sativa L.) cultivars”

✓ located verbatim in the source · title, characters 12–50 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The 80 kg/ha nitrogen dose gave maximum grain yield of 3197.00 kg/ha.

Taxon
local rice (Oryza sativa L.) cultivarsOryza sativat0
Treatment
80 kg/hae0
Outcome
overall grain yielde0
Direction
maximume0
Value
3197.00 kg/hae0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The nitrogen dose at 80 kg/ha also recorded maximum number of grains per panicle, length of panicle, weight of panicle and the overall grain yield of 3197.00 kg/ha.”

✓ located verbatim in the source · abstract, characters 728–892 · show in text ↑
t0

“local rice (Oryza sativa L.) cultivars”

✓ located verbatim in the source · title, characters 12–50 · show in text ↑
Observationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Apaghi had significantly greater panicle length, weight, grain number and test weight than Inglongkiri.

Taxon
local rice (Oryza sativa L.) cultivarsOryza sativat0
Material
‘Apaghi’e0
Outcome
panicle length and weight, number of grains per panicle and test weighte0
Direction
highere0
Comparator
Inglongkirie0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Between the cultivars tested, the cultivar ‘Apaghi’ was found to be superior recording significantly higher panicle length and weight, number of grains per panicle and test weight ultimately recording the highest grain and straw yields of 3139.69 kg/ha and 4318.33 kg/ha respectively over the cultivar Inglongkiri.”

✓ located verbatim in the source · abstract, characters 893–1207 · show in text ↑
t0

“local rice (Oryza sativa L.) cultivars”

✓ located verbatim in the source · title, characters 12–50 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Apaghi had the highest grain yield, 3139.69 kg/ha, over Inglongkiri.

Taxon
local rice (Oryza sativa L.) cultivarsOryza sativat0
Material
‘Apaghi’e0
Outcome
graine0
Direction
higheste0
Value
3139.69 kg/hae0
Comparator
Inglongkirie0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Between the cultivars tested, the cultivar ‘Apaghi’ was found to be superior recording significantly higher panicle length and weight, number of grains per panicle and test weight ultimately recording the highest grain and straw yields of 3139.69 kg/ha and 4318.33 kg/ha respectively over the cultivar Inglongkiri.”

✓ located verbatim in the source · abstract, characters 893–1207 · show in text ↑
t0

“local rice (Oryza sativa L.) cultivars”

✓ located verbatim in the source · title, characters 12–50 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Apaghi had the highest straw yield, 4318.33 kg/ha, over Inglongkiri.

Taxon
local rice (Oryza sativa L.) cultivarsOryza sativat0
Material
‘Apaghi’e0
Outcome
straw yieldse0
Direction
higheste0
Value
4318.33 kg/hae0
Comparator
Inglongkirie0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Between the cultivars tested, the cultivar ‘Apaghi’ was found to be superior recording significantly higher panicle length and weight, number of grains per panicle and test weight ultimately recording the highest grain and straw yields of 3139.69 kg/ha and 4318.33 kg/ha respectively over the cultivar Inglongkiri.”

✓ located verbatim in the source · abstract, characters 893–1207 · show in text ↑
t0

“local rice (Oryza sativa L.) cultivars”

✓ located verbatim in the source · title, characters 12–50 · show in text ↑

nitrogen · growth · Oryza sativa (rice)Positive and negative results

511 papers: 402 positive, 109 negative or no effect

401 papers in the same direction as this paper · 101 in the opposite direction · 8 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

507 papers more in this group

See all 511 papers →

nitrogen · yield · Oryza sativa (rice)Positive and negative results

2,045 papers: 1,803 positive, 242 negative or no effect

1,802 papers in the same direction as this paper · 193 in the opposite direction · 49 reporting no difference from an alternative

  1. negative
  2. negative
  3. 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.