Paper · 2005 · Journal of Zhejiang University SCIENCE B

Bread wheat varieties as influenced by different nitrogen levels

Iqtidar Hussain; Muhammad Ayyaz Khan; Ejaz Ahmad Khan

11
claims
22
verbatim quotes
156
citations
2
research areas
✓
Open access

Abstract

Experiment was conducted to determine the effect of different nitrogen levels on four bread wheat varieties (Triticum aestivum L.) viz. Inqilab-91, Daman-98, Dera-98 and Punjab-96 at Gomal University, Dera Ismail Khan (NWFP), Pakistan during 2000 approximatey 2001. The experiment was laid out in split plot design having four replications using a net plot size of 2 m x 5 m. Nitrogen doses used were 0, 50, 100, 150 and 200 kg/ha. The results showed that different nitrogen levels had significant effects on plant height, total number of plants/m(2), number of grains/spike, number of spike/m(2), spike weight, biological yield, grain yield and grain protein content. Maximum plant height, total number of plants/m(2), number of spikes/m(2), spike weight, biological yield and grain protein content were observed at 200 kg N/ha. Among wheat varieties Daman-98 had maximum plant height, spike weight, grains/spike, 1000-grain weight, biological yield and grain yield. Inqilab-91 had heavier grains and the most grain protein content, while Dera-98 had the maximum plant population and spikes/m(2). Grain yield and biological yield were statistically similar at doses of 150 kg N/ha and 200 kg N/ha. However, dose of 200 kg N/ha, compared to dose of 150 Kg N/ha, significantly increased the protein content.

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Claims 11

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Different nitrogen levels significantly affected plant height, plant number per m2 and grains per spike in wheat.

Taxon
Bread wheatTriticum aestivumt0
Treatment
different nitrogen levelse0
Outcome
plant height, total number of plants/m(2), number of grains/spikee0

Not reportedComparatorDirection

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

t0

“Bread wheat varieties”

✓ located verbatim in the source · title, characters 0–21 · show in text ↑
e0

“different nitrogen levels had significant effects on plant height, total number of plants/m(2), number of grains/spike, number of spike/m(2), spike weight, biological yield, grain yield and grain protein content”

✓ located verbatim in the source · abstract, characters 456–667 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Different nitrogen levels significantly affected spikes per m2, spike weight and biological yield in wheat.

Taxon
Bread wheatTriticum aestivumt0
Treatment
different nitrogen levelse0
Outcome
number of spike/m(2), spike weight, biological yielde0

Not reportedComparatorDirection

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

t0

“Bread wheat varieties”

✓ located verbatim in the source · title, characters 0–21 · show in text ↑
e0

“different nitrogen levels had significant effects on plant height, total number of plants/m(2), number of grains/spike, number of spike/m(2), spike weight, biological yield, grain yield and grain protein content”

✓ located verbatim in the source · abstract, characters 456–667 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Different nitrogen levels significantly affected grain yield and grain protein content in wheat.

Taxon
Bread wheatTriticum aestivumt0
Treatment
different nitrogen levelse0
Outcome
grain yield and grain protein contente0

Not reportedComparatorDirection

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

t0

“Bread wheat varieties”

✓ located verbatim in the source · title, characters 0–21 · show in text ↑
e0

“different nitrogen levels had significant effects on plant height, total number of plants/m(2), number of grains/spike, number of spike/m(2), spike weight, biological yield, grain yield and grain protein content”

✓ located verbatim in the source · abstract, characters 456–667 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Plant height, plant number per m2 and spikes per m2 were maximal at 200 kg N/ha.

Taxon
Bread wheatTriticum aestivumt0
Treatment
200 kg N/hae0
Outcome
plant height, total number of plants/m(2), number of spikes/m(2)e0
Direction
Maximume0

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

t0

“Bread wheat varieties”

✓ located verbatim in the source · title, characters 0–21 · show in text ↑
e0

“Maximum plant height, total number of plants/m(2), number of spikes/m(2), spike weight, biological yield and grain protein content were observed at 200 kg N/ha”

✓ located verbatim in the source · abstract, characters 669–828 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Spike weight, biological yield and grain protein content were maximal at 200 kg N/ha.

Taxon
Bread wheatTriticum aestivumt0
Treatment
200 kg N/hae0
Outcome
spike weight, biological yield and grain protein contente0
Direction
Maximume0

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

t0

“Bread wheat varieties”

✓ located verbatim in the source · title, characters 0–21 · show in text ↑
e0

“Maximum plant height, total number of plants/m(2), number of spikes/m(2), spike weight, biological yield and grain protein content were observed at 200 kg N/ha”

✓ located verbatim in the source · abstract, characters 669–828 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Variety Daman-98 had the maximum plant height, spike weight and grains per spike.

Taxon
Bread wheatTriticum aestivumt0
Material
Daman-98e0
Outcome
plant height, spike weight, grains/spikee0
Direction
maximume0

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

t0

“Bread wheat varieties”

✓ located verbatim in the source · title, characters 0–21 · show in text ↑
e0

“Among wheat varieties Daman-98 had maximum plant height, spike weight, grains/spike, 1000-grain weight, biological yield and grain yield”

✓ located verbatim in the source · abstract, characters 830–966 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Variety Daman-98 had the maximum 1000-grain weight, biological yield and grain yield.

Taxon
Bread wheatTriticum aestivumt0
Material
Daman-98e0
Outcome
1000-grain weight, biological yield and grain yielde0
Direction
maximume0

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

t0

“Bread wheat varieties”

✓ located verbatim in the source · title, characters 0–21 · show in text ↑
e0

“Among wheat varieties Daman-98 had maximum plant height, spike weight, grains/spike, 1000-grain weight, biological yield and grain yield”

✓ located verbatim in the source · abstract, characters 830–966 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Variety Inqilab-91 had heavier grains and the highest grain protein content.

Taxon
Bread wheatTriticum aestivumt0
Material
Inqilab-91e0
Outcome
heavier grains and the most grain protein contente0

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

t0

“Bread wheat varieties”

✓ located verbatim in the source · title, characters 0–21 · show in text ↑
e0

“Inqilab-91 had heavier grains and the most grain protein content”

✓ located verbatim in the source · abstract, characters 968–1032 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Variety Dera-98 had the maximum plant population and spikes per m2.

Taxon
Bread wheatTriticum aestivumt0
Material
Dera-98e0
Outcome
plant population and spikes/m(2)e0
Direction
maximume0

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

t0

“Bread wheat varieties”

✓ located verbatim in the source · title, characters 0–21 · show in text ↑
e0

“Dera-98 had the maximum plant population and spikes/m(2)”

✓ located verbatim in the source · abstract, characters 1040–1096 · show in text ↑
Intervention effectobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Grain yield and biological yield were statistically similar at 150 and 200 kg N/ha.

Taxon
Bread wheatTriticum aestivumt0
Treatment
200 kg N/hae0
Outcome
Grain yield and biological yielde0
Direction
statistically similare0
Comparator
150 kg N/hae0

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

t0

“Bread wheat varieties”

✓ located verbatim in the source · title, characters 0–21 · show in text ↑
e0

“Grain yield and biological yield were statistically similar at doses of 150 kg N/ha and 200 kg N/ha”

✓ located verbatim in the source · abstract, characters 1098–1197 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Applying 200 kg N/ha significantly increased protein content compared with 150 kg N/ha.

Taxon
Bread wheatTriticum aestivumt0
Treatment
dose of 200 kg N/hae0
Outcome
protein contente0
Direction
increasede0
Comparator
dose of 150 Kg N/hae0

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

t0

“Bread wheat varieties”

✓ located verbatim in the source · title, characters 0–21 · show in text ↑
e0

“dose of 200 kg N/ha, compared to dose of 150 Kg N/ha, significantly increased the protein content”

✓ located verbatim in the source · abstract, characters 1208–1305 · show in text ↑

nitrogen · quality: protein · Triticum aestivum (wheat)Positive and negative results

454 papers: 400 positive, 54 negative or no effect

399 papers in the same direction as this paper · 47 in the opposite direction · 7 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

450 papers more in this group

See all 454 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. negative
  2. no effect
  3. no effect

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.