Paper · 2018 · Journal of Cereal Research

Effect of Irrigation Regimes and Nitrogen Levels on Phenology and Grain Yield of Late Sown Wheat

Mukesh Kumar Kainwal; Raj Kumar Pannu; Bhagat Singh

9
claims
23
verbatim quotes
2
citations
2
research areas
✓
Open access

Abstract

A field experiment was conducted to study the response of irrigation regimes and nitrogen levels on phenology and grain yield of late sown wheat. The experiment consisting of three irrigation regimes viz. one irrigation (at CRI), two irrigations at (CRI and heading) and four irrigations at (CRI, late tillering, heading and milking) in main plots and five nitrogen levels viz. control i.e. 0, 50, 100, 150 and 200 kg N/ha in sub-plots was laid out in strip plot design. Days taken to heading, anthesis and physiological maturity delayed significantlywith increased irrigation regimes and nitrogen levels. Similarly, plant height, dry matter accumulation, crop growth rate (CGR) and leaf area index (LAI) increased significantly with increased irrigation regimes from one to two and two to four irrigations and dose of nitrogen. The grain yield increased by 50.6 and 47.5% over one irrigation and 20.4 and 21.9% over two irrigations in four irrigations (3832 and 3989 kg/ha) during 2010-11 and 2011-12, respectively. The growth parameters namely plant height, LAI, dry matter accumulation and CGR showed a significant positive relationship with grain yield. Increase in a dose of nitrogen increased the grain yield significantly up to 150 kg N/haduring both the year. However, the grain yield of wheat was statistically at par with 150 and 200 kg N/ha. Doi.org/10.25174/2249-4065/2018/66913Â

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Claims 9

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Days taken to heading, anthesis and physiological maturity of late sown wheat were delayed significantly with increased irrigation regimes.

Treatment
increased irrigation regimese1
Outcome
heading, anthesis and physiological maturitye1
Direction
delayede1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Late Sown Wheat”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
e1

“heading, anthesis and physiological maturity delayed significantlywith increased irrigation regimes and nitrogen levels”

✓ located verbatim in the source · abstract, characters 485–604 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Days taken to heading, anthesis and physiological maturity of late sown wheat were delayed significantly with increased nitrogen levels.

Treatment
nitrogen levelse1
Outcome
heading, anthesis and physiological maturitye1
Direction
delayede1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Late Sown Wheat”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
e1

“heading, anthesis and physiological maturity delayed significantlywith increased irrigation regimes and nitrogen levels”

✓ located verbatim in the source · abstract, characters 485–604 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Plant height, dry matter accumulation and crop growth rate of late sown wheat increased significantly with increased irrigation regimes (one to two and two to four irrigations).

Treatment
irrigation regimese2
Outcome
height, dry matter accumulation, crop growth rate (CGR)e1
Direction
increasede2

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Late Sown Wheat”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
e1

“height, dry matter accumulation, crop growth rate (CGR)”

✓ located verbatim in the source · abstract, characters 623–678 · show in text ↑
e2

“(LAI) increased significantly with increased irrigation regimes”

✓ located verbatim in the source · abstract, characters 699–762 · show in text ↑
e3

“irrigations and dose of nitrogen”

✓ located verbatim in the source · abstract, characters 795–827 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Leaf area index of late sown wheat increased significantly with increased irrigation regimes (one to two and two to four irrigations).

Treatment
irrigation regimese1
Outcome
LAIe1
Direction
increasede1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Late Sown Wheat”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
e1

“(LAI) increased significantly with increased irrigation regimes”

✓ located verbatim in the source · abstract, characters 699–762 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Plant height, dry matter accumulation and crop growth rate of late sown wheat increased significantly with increased dose of nitrogen.

Treatment
dose of nitrogene3
Outcome
height, dry matter accumulation, crop growth rate (CGR)e1
Direction
increasede2

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Late Sown Wheat”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
e1

“height, dry matter accumulation, crop growth rate (CGR)”

✓ located verbatim in the source · abstract, characters 623–678 · show in text ↑
e2

“(LAI) increased significantly with increased irrigation regimes”

✓ located verbatim in the source · abstract, characters 699–762 · show in text ↑
e3

“irrigations and dose of nitrogen”

✓ located verbatim in the source · abstract, characters 795–827 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Leaf area index of late sown wheat increased significantly with increased dose of nitrogen.

Treatment
dose of nitrogene2
Outcome
LAIe1
Direction
increasede1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Late Sown Wheat”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
e1

“(LAI) increased significantly with increased irrigation regimes”

✓ located verbatim in the source · abstract, characters 699–762 · show in text ↑
e2

“irrigations and dose of nitrogen”

✓ located verbatim in the source · abstract, characters 795–827 · show in text ↑
Associationobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Plant height, leaf area index, dry matter accumulation and crop growth rate of late sown wheat showed a significant positive relationship with grain yield.

Treatment
plant height, LAI, dry matter accumulation and CGRe1
Outcome
grain yielde2
Direction
positivee2

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Schema note from the model: related variables are growth parameters, not an applied treatment; no listed field fits

Verbatim

e0

“Late Sown Wheat”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
e1

“namely plant height, LAI, dry matter accumulation and CGR”

✓ located verbatim in the source · abstract, characters 1039–1096 · show in text ↑
e2

“a significant positive relationship with grain yield”

✓ located verbatim in the source · abstract, characters 1104–1156 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Increasing the dose of nitrogen increased grain yield of wheat significantly up to 150 kg N/ha in both years.

Treatment
nitrogene1
Outcome
grain yielde1
Direction
increasede1
Qualifier
up to 150 kg N/hae1

Not reportedComparator

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Late Sown Wheat”

✓ located verbatim in the source · title, characters 81–96 · show in text ↑
e1

“nitrogen increased the grain yield significantly up to 150 kg N/haduring both the year”

✓ located verbatim in the source · abstract, characters 1180–1266 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Grain yield of wheat was statistically at par between 150 and 200 kg N/ha.

Treatment
200 kg N/hae0
Outcome
grain yielde0
Direction
at pare0
Comparator
150e0

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

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the grain yield of wheat was statistically at par with 150 and 200 kg N/ha”

✓ located verbatim in the source · abstract, characters 1277–1351 · show in text ↑

irrigation · growth · Triticum aestivum (wheat)Positive and negative results

242 papers: 177 positive, 65 negative or no effect

176 papers in the same direction as this paper · 61 in the opposite direction · 4 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

238 papers more in this group

See all 242 papers →

nitrogen · growth · Triticum aestivum (wheat)Positive and negative results

551 papers: 426 positive, 125 negative or no effect

425 papers in the same direction as this paper · 116 in the opposite direction · 9 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

547 papers more in this group

See all 551 papers →

nitrogen · yield · Triticum aestivum (wheat)Positive and negative results

2,061 papers: 1,737 positive, 324 negative or no effect

1,736 papers in the same direction as this paper · 285 in the opposite direction · 39 reporting no difference from an alternative

  1. positive
  2. positive
  3. negative

2,057 papers more in this group

See all 2,061 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.