Paper · 2008 · ORYZA- An International Journal on Rice

Effect of planting dates and soil water regimes on growth and yield of upland rice

HK Rai; H.S. Kushwaha

10
claims
20
verbatim quotes
15
citations
3
research areas
—
Not open access

Abstract

The response of rice (cv. Pant Dhan-4) to different planting dates and soil water regimes under upland conditions was studied in tarai region of Uttaranchal at the G. B. Pant University of Agriculture and Technology, Pantnagar. Delay in planting from15 June to 15 July decreased plant height (13%), leaf area index (10%), number of tillers (5%), number of days to panicle initiation (6 to 8 days), 50 per cent flowering (12 to 15 days), maturity (6 to 7 days) and grain yield (5 to 15%). Application of 7.5 cm irrigation water 3 days after disappearance from the plot reduced the number of tillers by 11 per cent and grain yield by 16 to 20 per cent over continuous submergence of 5.0 + 2.5 cm irrigation water. Crop maturity was delayed by 8 to 11 days due to change in soil water regimes from continuous submergence to rainfed conditions.

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Claims 10

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Delaying planting from 15 June to 15 July decreased plant height by 13%.

Material
cv. Pant Dhan-4e0
Treatment
Delay in plantinge1
Outcome
plant heighte1
Direction
decreasede1
Value
13%e1
Comparator
15 Junee1
Setting
tarai region of Uttaranchale0

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 rice (cv. Pant Dhan-4) to different planting dates and soil water regimes under upland conditions was studied in tarai region of Uttaranchal”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
e1

“Delay in planting from15 June to 15 July decreased plant height (13%), leaf area index (10%), number of tillers (5%), number of days to panicle initiation (6 to 8 days), 50 per cent flowering (12 to 15 days), maturity (6 to 7 days) and grain yield (5 to 15%)”

✓ located verbatim in the source · abstract, characters 228–486 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Delaying planting from 15 June to 15 July decreased leaf area index by 10%.

Material
cv. Pant Dhan-4e0
Treatment
Delay in plantinge1
Outcome
leaf area indexe1
Direction
decreasede1
Value
10%e1
Comparator
15 Junee1
Setting
tarai region of Uttaranchale0

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 rice (cv. Pant Dhan-4) to different planting dates and soil water regimes under upland conditions was studied in tarai region of Uttaranchal”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
e1

“Delay in planting from15 June to 15 July decreased plant height (13%), leaf area index (10%), number of tillers (5%), number of days to panicle initiation (6 to 8 days), 50 per cent flowering (12 to 15 days), maturity (6 to 7 days) and grain yield (5 to 15%)”

✓ located verbatim in the source · abstract, characters 228–486 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Delaying planting from 15 June to 15 July decreased the number of tillers by 5%.

Material
cv. Pant Dhan-4e0
Treatment
Delay in plantinge1
Outcome
number of tillerse1
Direction
decreasede1
Value
5%e1
Comparator
15 Junee1
Setting
tarai region of Uttaranchale0

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 rice (cv. Pant Dhan-4) to different planting dates and soil water regimes under upland conditions was studied in tarai region of Uttaranchal”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
e1

“Delay in planting from15 June to 15 July decreased plant height (13%), leaf area index (10%), number of tillers (5%), number of days to panicle initiation (6 to 8 days), 50 per cent flowering (12 to 15 days), maturity (6 to 7 days) and grain yield (5 to 15%)”

✓ located verbatim in the source · abstract, characters 228–486 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Delaying planting from 15 June to 15 July decreased days to panicle initiation by 6 to 8 days.

Material
cv. Pant Dhan-4e0
Treatment
Delay in plantinge1
Outcome
days to panicle initiatione1
Direction
decreasede1
Value
6 to 8 dayse1
Comparator
15 Junee1
Setting
tarai region of Uttaranchale0

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 rice (cv. Pant Dhan-4) to different planting dates and soil water regimes under upland conditions was studied in tarai region of Uttaranchal”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
e1

“Delay in planting from15 June to 15 July decreased plant height (13%), leaf area index (10%), number of tillers (5%), number of days to panicle initiation (6 to 8 days), 50 per cent flowering (12 to 15 days), maturity (6 to 7 days) and grain yield (5 to 15%)”

✓ located verbatim in the source · abstract, characters 228–486 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Delaying planting from 15 June to 15 July decreased days to 50 per cent flowering by 12 to 15 days.

Material
cv. Pant Dhan-4e0
Treatment
Delay in plantinge1
Outcome
50 per cent floweringe1
Direction
decreasede1
Value
12 to 15 dayse1
Comparator
15 Junee1
Setting
tarai region of Uttaranchale0

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 rice (cv. Pant Dhan-4) to different planting dates and soil water regimes under upland conditions was studied in tarai region of Uttaranchal”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
e1

“Delay in planting from15 June to 15 July decreased plant height (13%), leaf area index (10%), number of tillers (5%), number of days to panicle initiation (6 to 8 days), 50 per cent flowering (12 to 15 days), maturity (6 to 7 days) and grain yield (5 to 15%)”

✓ located verbatim in the source · abstract, characters 228–486 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Delaying planting from 15 June to 15 July decreased maturity by 6 to 7 days.

Material
cv. Pant Dhan-4e0
Treatment
Delay in plantinge1
Outcome
maturitye1
Direction
decreasede1
Value
6 to 7 dayse1
Comparator
15 Junee1
Setting
tarai region of Uttaranchale0

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 rice (cv. Pant Dhan-4) to different planting dates and soil water regimes under upland conditions was studied in tarai region of Uttaranchal”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
e1

“Delay in planting from15 June to 15 July decreased plant height (13%), leaf area index (10%), number of tillers (5%), number of days to panicle initiation (6 to 8 days), 50 per cent flowering (12 to 15 days), maturity (6 to 7 days) and grain yield (5 to 15%)”

✓ located verbatim in the source · abstract, characters 228–486 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Delaying planting from 15 June to 15 July decreased grain yield by 5 to 15%.

Material
cv. Pant Dhan-4e0
Treatment
Delay in plantinge1
Outcome
grain yielde1
Direction
decreasede1
Value
5 to 15%e1
Comparator
15 Junee1
Setting
tarai region of Uttaranchale0

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 rice (cv. Pant Dhan-4) to different planting dates and soil water regimes under upland conditions was studied in tarai region of Uttaranchal”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
e1

“Delay in planting from15 June to 15 July decreased plant height (13%), leaf area index (10%), number of tillers (5%), number of days to panicle initiation (6 to 8 days), 50 per cent flowering (12 to 15 days), maturity (6 to 7 days) and grain yield (5 to 15%)”

✓ located verbatim in the source · abstract, characters 228–486 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Irrigation of 7.5 cm three days after disappearance of water reduced tiller number by 11% relative to continuous submergence.

Treatment
7.5 cm irrigation water 3 days after disappearance from the plote2
Outcome
number of tillerse2
Direction
reducede2
Value
11 per cente2
Comparator
continuous submergence of 5.0 + 2.5 cm irrigation watere2

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 rice (cv. Pant Dhan-4) to different planting dates and soil water regimes under upland conditions was studied in tarai region of Uttaranchal”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
e2

“Application of 7.5 cm irrigation water 3 days after disappearance from the plot reduced the number of tillers by 11 per cent and grain yield by 16 to 20 per cent over continuous submergence of 5.0 + 2.5 cm irrigation water”

✓ located verbatim in the source · abstract, characters 488–710 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Irrigation of 7.5 cm three days after disappearance of water reduced grain yield by 16 to 20% relative to continuous submergence.

Treatment
7.5 cm irrigation water 3 days after disappearance from the plote2
Outcome
grain yielde2
Direction
reducede2
Value
16 to 20 per cente2
Comparator
continuous submergence of 5.0 + 2.5 cm irrigation watere2

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 rice (cv. Pant Dhan-4) to different planting dates and soil water regimes under upland conditions was studied in tarai region of Uttaranchal”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
e2

“Application of 7.5 cm irrigation water 3 days after disappearance from the plot reduced the number of tillers by 11 per cent and grain yield by 16 to 20 per cent over continuous submergence of 5.0 + 2.5 cm irrigation water”

✓ located verbatim in the source · abstract, characters 488–710 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Changing from continuous submergence to rainfed conditions delayed crop maturity by 8 to 11 days.

Treatment
change in soil water regimes from continuous submergence to rainfed conditionse3
Outcome
Crop maturitye3
Direction
delayede3
Value
8 to 11 dayse3
Comparator
continuous submergencee3

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 rice (cv. Pant Dhan-4) to different planting dates and soil water regimes under upland conditions was studied in tarai region of Uttaranchal”

✓ located verbatim in the source · abstract, characters 0–156 · show in text ↑
e3

“Crop maturity was delayed by 8 to 11 days due to change in soil water regimes from continuous submergence to rainfed conditions”

✓ located verbatim in the source · abstract, characters 712–839 · show in text ↑

sowing time · growth · Oryza sativa (rice)Positive and negative results

33 papers: 18 positive, 15 negative or no effect

14 papers in the same direction as this paper · 18 in the opposite direction

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sowing time · yield · Oryza sativa (rice)Positive and negative results

193 papers: 123 positive, 70 negative or no effect

69 papers in the same direction as this paper · 123 in the opposite direction

  1. positive
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irrigation · yield · Oryza sativa (rice)Positive and negative results

1,171 papers: 906 positive, 265 negative or no effect

264 papers in the same direction as this paper · 906 in the opposite direction

  1. positive
  2. positive
  3. positive

1,167 papers more in this group

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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.