Paper · 2001 · Indian Journal of Agronomy

Effect of row spacing and nitrogen level on growth, yield and seed quality of scented rice (Oryza sativa) under transplanted conditions

NEELAM KUMAR CHOPRA; NlSHA CHOPRA r

8
claims
16
verbatim quotes
15
citations
1
research areas
✓
Open access

Abstract

A field experiment was conducted during the rainy season of 1994 and 1995 at Karnal, Haryana, to study the effect of row spacing and nitrogen levels on growth, seed yield and seed quality of Pusa Basmati 1 scented rice (Oryza sativa L.). Row spacing did not influence yield attributes, seed and straw yields. Significant linear increase in seed yield was recorded up to 80 kg Nlha and thereafter a marginal reduction in seed yield was observed at 120 kg Nlha. However, straw yield increased up to the highest level of N. Seed quality in terms of germination was neither affected by row spacing nor by N levels. The response of seed yield to N levels was quadratic. The maximum response was observed at 40 kg M a and thereafter it decreased with the increase in N level. The optimum economic dose of N was worked out to be 98.5 kglha with additional profit of Rs 8,075lha.

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Claims 8

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Row spacing did not influence yield attributes or seed and straw yields.

Taxon
Oryza sativaOryza sativat0
Treatment
Row spacinge0
Outcome
yield attributes, seed and straw yieldse0
Direction
did not influencee0

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

“Row spacing did not influence yield attributes, seed and straw yields.”

✓ located verbatim in the source · abstract, characters 238–308 · show in text ↑
t0

“Oryza sativa”

✓ located verbatim in the source · title, characters 92–104 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Seed yield increased significantly up to 80 kg Nlha.

Taxon
Oryza sativaOryza sativat0
Treatment
80 kg Nlhae0
Outcome
seed yielde0
Direction
increasee0

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

“Significant linear increase in seed yield was recorded up to 80 kg Nlha”

✓ located verbatim in the source · abstract, characters 309–380 · show in text ↑
t0

“Oryza sativa”

✓ located verbatim in the source · title, characters 92–104 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Seed yield marginally declined at 120 kg Nlha.

Taxon
Oryza sativaOryza sativat0
Treatment
120 kg Nlhae0
Outcome
seed yielde0
Direction
reductione0

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

“thereafter a marginal reduction in seed yield was observed at 120 kg Nlha.”

✓ located verbatim in the source · abstract, characters 385–459 · show in text ↑
t0

“Oryza sativa”

✓ located verbatim in the source · title, characters 92–104 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Straw yield increased up to the highest nitrogen level.

Taxon
Oryza sativaOryza sativat0
Treatment
highest level of Ne0
Outcome
straw yielde0
Direction
increasede0

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

“straw yield increased up to the highest level of N.”

✓ located verbatim in the source · abstract, characters 469–520 · show in text ↑
t0

“Oryza sativa”

✓ located verbatim in the source · title, characters 92–104 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Seed germination quality was unaffected by row spacing or nitrogen levels.

Taxon
Oryza sativaOryza sativat0
Treatment
row spacing nor by N levelse0
Outcome
Seed quality in terms of germinatione0
Direction
neither affectede0

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

“Seed quality in terms of germination was neither affected by row spacing nor by N levels.”

✓ located verbatim in the source · abstract, characters 521–610 · show in text ↑
t0

“Oryza sativa”

✓ located verbatim in the source · title, characters 92–104 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Seed yield response to nitrogen levels was quadratic.

Taxon
Oryza sativaOryza sativat0
Treatment
N levelse0
Outcome
response of seed yielde0

Not reportedDirection

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 response of seed yield to N levels was quadratic.”

✓ located verbatim in the source · abstract, characters 611–664 · show in text ↑
t0

“Oryza sativa”

✓ located verbatim in the source · title, characters 92–104 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Maximum response was at 40 kg M a and fell at higher nitrogen levels.

Taxon
Oryza sativaOryza sativat0
Treatment
40 kg M ae0
Outcome
maximum responsee0
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 maximum response was observed at 40 kg M a and thereafter it decreased with the increase in N level.”

✓ located verbatim in the source · abstract, characters 665–769 · show in text ↑
t0

“Oryza sativa”

✓ located verbatim in the source · title, characters 92–104 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The calculated optimum economic nitrogen dose was 98.5 kglha with additional profit of Rs 8,075lha.

Taxon
Oryza sativaOryza sativat0
Outcome
optimum economic dose of Ne0
Value
98.5 kglhae0
Qualifier
additional profit of Rs 8,075lhae0

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 optimum economic dose of N was worked out to be 98.5 kglha with additional profit of Rs 8,075lha.”

✓ located verbatim in the source · abstract, characters 770–871 · show in text ↑
t0

“Oryza sativa”

✓ located verbatim in the source · title, characters 92–104 · show in text ↑

nitrogen · quality: grain · Oryza sativa (rice)Results differ

102 papers: 81 positive, 21 negative or no effect

20 papers in the same direction as this paper · 81 in the opposite direction

  1. positive
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  3. positive

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density · quality: grain · Oryza sativa (rice)Positive and negative results

14 papers: 5 positive, 9 negative or no effect

8 papers in the same direction as this paper · 5 in the opposite direction

  1. positive
  2. positive
  3. positive

10 papers more in this group

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

395 papers: 330 positive, 65 negative or no effect

64 papers in the same direction as this paper · 330 in the opposite direction

  1. positive
  2. positive
  3. positive

391 papers more in this group

See all 395 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.