Paper · 2003 · Nanjing Nongye Daxue xuebao

Effects of fertilizer levels on photosynthetic characteristics of flag leaf and contents of protein and yield in grain in specialty wheat

Shen Jian-hui; Dong Jiang; Tingbo Dai; et al.

7
claims
14
verbatim quotes
3
citations
2
research areas
—
Not open access

Abstract

Field experiment was conducted to study effects of different nitrogen, phosphorus and potassium fertilizer application levels on yield and quality of grains, photosynthetic characteristics of flag leaves, and nitrogen accumulation and distribution in plant in two specialty wheat varieties: mid-gluten Yangmai 10 and weak-gluten Ningmai 9. Grain yields and protein contents of Yangmai 10 were high under the treatments of moderate (225 kg·hm~(-2)) or high nitrogen (337.5 k· hm~(-2) ) with high phosphorus (150 kg·hm~(-2)) and potassium (150 kg·hm~(-2)) , and under the treatment of moderate nitrogen with high phosphorus and low, potassium ( 30 kg· hm ~(-2)) . Yields of Ningmai 9 with the above treatments were also high, but grain protein contents were low with the treatments of moderate or high nitrogen with high phosphorus and potassium. Grain protein contents and yields of Ningmai 9 were lowest in the treatments of low nitrogen (30 kg·hm~(-2)) and high potassium. Grain yield remarkably related to photosynthetic parameters of flag leaf and LAI at anthesis. Leaf nitrogen content at anthesis and the difference of nitrogen content between anthesis and maturity of Ningmai 9 showed conic relation to grain protein content.

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Claims 7

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Grain yield and protein content of Yangmai 10 were high under moderate nitrogen (225 kg·hm~(-2)).

Material
Yangmai 10e2
Treatment
moderate (225 kg·hm~(-2))e2
Outcome
Grain yields and protein contentse2
Direction
highe2
Setting
Field experimente0

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

“Field experiment was conducted to study effects of different nitrogen, phosphorus and potassium fertilizer application levels on yield and quality of grains, photosynthetic characteristics of flag leaves, and nitrogen accumulation and distribution in plant in two specialty wheat varieties: mid-gluten Yangmai 10 and weak-gluten Ningmai 9”

✓ located verbatim in the source · abstract, characters 0–338 · show in text ↑
e2

“Grain yields and protein contents of Yangmai 10 were high under the treatments of moderate (225 kg·hm~(-2)) or high nitrogen”

✓ located verbatim in the source · abstract, characters 340–464 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Grain yield and protein content of Yangmai 10 were high under high nitrogen.

Material
Yangmai 10e2
Treatment
high nitrogene2
Outcome
Grain yields and protein contentse2
Direction
highe2
Setting
Field experimente0

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

“Field experiment was conducted to study effects of different nitrogen, phosphorus and potassium fertilizer application levels on yield and quality of grains, photosynthetic characteristics of flag leaves, and nitrogen accumulation and distribution in plant in two specialty wheat varieties: mid-gluten Yangmai 10 and weak-gluten Ningmai 9”

✓ located verbatim in the source · abstract, characters 0–338 · show in text ↑
e2

“Grain yields and protein contents of Yangmai 10 were high under the treatments of moderate (225 kg·hm~(-2)) or high nitrogen”

✓ located verbatim in the source · abstract, characters 340–464 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Grain yield of Ningmai 9 was high under the above treatments.

Material
Ningmai 9e3
Treatment
the above treatmentse3
Outcome
Yieldse3
Direction
highe3
Setting
Field experimente0

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

“Field experiment was conducted to study effects of different nitrogen, phosphorus and potassium fertilizer application levels on yield and quality of grains, photosynthetic characteristics of flag leaves, and nitrogen accumulation and distribution in plant in two specialty wheat varieties: mid-gluten Yangmai 10 and weak-gluten Ningmai 9”

✓ located verbatim in the source · abstract, characters 0–338 · show in text ↑
e3

“Yields of Ningmai 9 with the above treatments were also high, but grain protein contents were low with the treatments of moderate or high nitrogen with high phosphorus and potassium”

✓ located verbatim in the source · abstract, characters 662–843 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Grain protein content of Ningmai 9 was low under moderate or high nitrogen with high phosphorus and potassium.

Material
Ningmai 9e3
Treatment
moderate or high nitrogen with high phosphorus and potassiume3
Outcome
grain protein contentse3
Direction
lowe3
Setting
Field experimente0

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

“Field experiment was conducted to study effects of different nitrogen, phosphorus and potassium fertilizer application levels on yield and quality of grains, photosynthetic characteristics of flag leaves, and nitrogen accumulation and distribution in plant in two specialty wheat varieties: mid-gluten Yangmai 10 and weak-gluten Ningmai 9”

✓ located verbatim in the source · abstract, characters 0–338 · show in text ↑
e3

“Yields of Ningmai 9 with the above treatments were also high, but grain protein contents were low with the treatments of moderate or high nitrogen with high phosphorus and potassium”

✓ located verbatim in the source · abstract, characters 662–843 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Grain protein content and yield of Ningmai 9 were lowest under low nitrogen (30 kg·hm~(-2)) and high potassium.

Material
Ningmai 9e4
Treatment
low nitrogen (30 kg·hm~(-2)) and high potassiume4
Outcome
Grain protein contents and yieldse4
Direction
loweste4
Setting
Field experimente0

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

“Field experiment was conducted to study effects of different nitrogen, phosphorus and potassium fertilizer application levels on yield and quality of grains, photosynthetic characteristics of flag leaves, and nitrogen accumulation and distribution in plant in two specialty wheat varieties: mid-gluten Yangmai 10 and weak-gluten Ningmai 9”

✓ located verbatim in the source · abstract, characters 0–338 · show in text ↑
e4

“Grain protein contents and yields of Ningmai 9 were lowest in the treatments of low nitrogen (30 kg·hm~(-2)) and high potassium”

✓ located verbatim in the source · abstract, characters 845–972 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Grain yield was remarkably related to photosynthetic parameters of flag leaf and LAI at anthesis.

Organ / stage
flag leafe5
Outcome
Grain yielde5
Qualifier
photosynthetic parameters of flag leaf and LAI at anthesise5
Setting
Field experimente0

Not reportedDirection

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

“Field experiment was conducted to study effects of different nitrogen, phosphorus and potassium fertilizer application levels on yield and quality of grains, photosynthetic characteristics of flag leaves, and nitrogen accumulation and distribution in plant in two specialty wheat varieties: mid-gluten Yangmai 10 and weak-gluten Ningmai 9”

✓ located verbatim in the source · abstract, characters 0–338 · show in text ↑
e5

“Grain yield remarkably related to photosynthetic parameters of flag leaf and LAI at anthesis”

✓ located verbatim in the source · abstract, characters 974–1066 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Leaf nitrogen content at anthesis and the nitrogen difference between anthesis and maturity of Ningmai 9 were conically related to grain protein content.

Material
Ningmai 9e6
Outcome
grain protein contente6
Qualifier
Leaf nitrogen content at anthesise6
Setting
Field experimente0

Not reportedDirection

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

“Field experiment was conducted to study effects of different nitrogen, phosphorus and potassium fertilizer application levels on yield and quality of grains, photosynthetic characteristics of flag leaves, and nitrogen accumulation and distribution in plant in two specialty wheat varieties: mid-gluten Yangmai 10 and weak-gluten Ningmai 9”

✓ located verbatim in the source · abstract, characters 0–338 · show in text ↑
e6

“Leaf nitrogen content at anthesis and the difference of nitrogen content between anthesis and maturity of Ningmai 9 showed conic relation to grain protein content”

✓ located verbatim in the source · abstract, characters 1068–1230 · show in text ↑

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

43 papers: 42 positive, 1 negative or no effect

42 in the opposite direction

  1. positive
  2. positive
  3. positive

39 papers more in this group

See all 43 papers →

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. negative
  2. no effect
  3. negative

450 papers more in this group

See all 454 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.