Paper · 2007 · Journal of Soil and Water Conservation

Effects of Sulfur on Photosynthesis Characteristics and Grain Yield of Winter Wheat under Different Nitrogen Application Rate

Yonghua Wang

16
claims
35
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

The experiment was conducted with soil available sulphur content of 22.78 mg/kg in 2003/2004 and 2004/2005 growing seasons.A total of eight fertilizeation treatments were implemented,2 N application rates(330、240 kg/hm2)and 4 S application rates(0,20,60,100 kg/hm2).The results indicated that fitting sulphur rate could improve the activity of nitrate reductase(NR),which was the key enzymes of nitrogen assimilation,and so improved the nitrogen assimilation ability.But under N330 supply levels,sulphur fertilization could reduce NR activity.Under the condition of nitrogen supply of 240 kg/hm2,sulphur fertilization could improve SPAD value of chlorophyll,and the more sulphur,the higher SPAD value.While under the condition of 330 kg/hm2, there was inhibition instead.The soluble protein content of flag leaf,under the different nitrogen supply levels,increased with the growth process,and drop promptly after reaching the maximum at anthesis.Under the same nitrogen supply level,its content increased with sulphur fertilization augment.The Photosynthesis Velocity(Pn) of flag leaf drop gradually since flowering.Under N330 supply level,Pn drop with sulphur fertilization,but gently.Under N240 supply level, increased with sulphur fertilization.Under the condition of N330 and N240,grains yield of N330S100,N330S60 and N300S20 had been improved by 28.6%,12.6% and 1.9% respectively;grains yield of N240S100,N240S60 and N240S20 improved by 25.7%,25.3% and 12.2% respectively.The level,but ears per 666.7 m2 and grains per ear hadn't.1 000-kernel weight of sulphur fertilization treatments had significant change under the same nitrogen supply.

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Claims 16

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Suitable sulfur rates improved wheat nitrate reductase activity.

Taxon
Winter WheatTriticum aestivumt0
Treatment
fitting sulphur ratee0
Gene
nitrate reductase(NR)e0
Outcome
activity of nitrate reductase(NR)e0
Direction
improvee0

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

“fitting sulphur rate could improve the activity of nitrate reductase(NR)”

✓ located verbatim in the source · abstract, characters 293–365 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Under N330, sulfur fertilization reduced wheat nitrate reductase activity.

Taxon
Winter WheatTriticum aestivumt0
Treatment
sulphur fertilizatione0
Outcome
NR activitye0
Direction
reducee0
Qualifier
N330 supply levelse0

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

“under N330 supply levels,sulphur fertilization could reduce NR activity.”

✓ located verbatim in the source · abstract, characters 471–543 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 240 kg/hm2 nitrogen, sulfur fertilization increased wheat chlorophyll SPAD value with increasing sulfur.

Taxon
Winter WheatTriticum aestivumt0
Treatment
sulphur fertilizatione0
Outcome
SPAD value of chlorophylle0
Direction
improvee0
Qualifier
nitrogen supply of 240 kg/hm2e0

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

“Under the condition of nitrogen supply of 240 kg/hm2,sulphur fertilization could improve SPAD value of chlorophyll,and the more sulphur,the higher SPAD value.”

✓ located verbatim in the source · abstract, characters 543–701 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At 330 kg/hm2 nitrogen, sulfur inhibited wheat chlorophyll SPAD response.

Taxon
Winter WheatTriticum aestivumt0
Treatment
sulphur fertilizatione1
Outcome
SPAD valuee1
Direction
inhibitione0
Qualifier
330 kg/hm2e0

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

“While under the condition of 330 kg/hm2, there was inhibition instead.”

✓ located verbatim in the source · abstract, characters 701–771 · show in text ↑
e1

“sulphur fertilization could improve SPAD value of chlorophyll”

✓ located verbatim in the source · abstract, characters 596–657 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Flag leaf soluble protein increased during growth and then fell after its anthesis maximum.

Taxon
Winter WheatTriticum aestivumt0
Organ / stage
flag leafe0
Outcome
soluble protein content of flag leafe0
Direction
increasede0
Qualifier
maximum at anthesise0

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 soluble protein content of flag leaf,under the different nitrogen supply levels,increased with the growth process,and drop promptly after reaching the maximum at anthesis.”

✓ located verbatim in the source · abstract, characters 771–946 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At a fixed nitrogen level, increasing sulfur increased flag leaf soluble protein content.

Taxon
Winter WheatTriticum aestivumt0
Treatment
sulphur fertilization augmente0
Outcome
soluble protein content of flag leafe1
Direction
increasede0
Qualifier
same nitrogen supply levele0

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

“Under the same nitrogen supply level,its content increased with sulphur fertilization augment.”

✓ located verbatim in the source · abstract, characters 946–1040 · show in text ↑
e1

“soluble protein content of flag leaf”

✓ located verbatim in the source · abstract, characters 775–811 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Flag leaf photosynthesis velocity declined from flowering.

Taxon
Winter WheatTriticum aestivumt0
Organ / stage
flag leafe0
Outcome
Photosynthesis Velocity(Pn) of flag leafe0
Direction
drop graduallye0
Qualifier
since floweringe0

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 Photosynthesis Velocity(Pn) of flag leaf drop gradually since flowering.”

✓ located verbatim in the source · abstract, characters 1040–1116 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Sulfur fertilization slightly reduced flag leaf photosynthesis velocity at N330.

Taxon
Winter WheatTriticum aestivumt0
Treatment
sulphur fertilizatione0
Outcome
Pne0
Direction
drope0
Qualifier
N330 supply levele0

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

“Under N330 supply level,Pn drop with sulphur fertilization,but gently.”

✓ located verbatim in the source · abstract, characters 1116–1186 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Sulfur fertilization increased flag leaf photosynthesis velocity at N240.

Taxon
Winter WheatTriticum aestivumt0
Treatment
sulphur fertilizatione0
Outcome
Pne1
Direction
increasede0
Qualifier
N240 supply levele0

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

“Under N240 supply level, increased with sulphur fertilization.”

✓ located verbatim in the source · abstract, characters 1186–1248 · show in text ↑
e1

“Pn drop with sulphur fertilization”

✓ located verbatim in the source · abstract, characters 1140–1174 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N330S100 improved wheat grain yield by 28.6%.

Taxon
Winter WheatTriticum aestivumt0
Treatment
N330S100e0
Outcome
grains yielde0
Direction
improvede0
Value
28.6%e0

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

“grains yield of N330S100,N330S60 and N300S20 had been improved by 28.6%,12.6% and 1.9% respectively”

✓ located verbatim in the source · abstract, characters 1285–1384 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N330S60 improved wheat grain yield by 12.6%.

Taxon
Winter WheatTriticum aestivumt0
Treatment
N330S60e0
Outcome
grains yielde0
Direction
improvede0
Value
12.6%e0

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

“grains yield of N330S100,N330S60 and N300S20 had been improved by 28.6%,12.6% and 1.9% respectively”

✓ located verbatim in the source · abstract, characters 1285–1384 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N300S20 improved wheat grain yield by 1.9%, as stated.

Taxon
Winter WheatTriticum aestivumt0
Treatment
N300S20e0
Outcome
grains yielde0
Direction
improvede0
Value
1.9%e0

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

“grains yield of N330S100,N330S60 and N300S20 had been improved by 28.6%,12.6% and 1.9% respectively”

✓ located verbatim in the source · abstract, characters 1285–1384 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N240S100 improved wheat grain yield by 25.7%.

Taxon
Winter WheatTriticum aestivumt0
Treatment
N240S100e0
Outcome
grains yielde0
Direction
improvede0
Value
25.7%e0

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

“grains yield of N240S100,N240S60 and N240S20 improved by 25.7%,25.3% and 12.2% respectively”

✓ located verbatim in the source · abstract, characters 1385–1476 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N240S60 improved wheat grain yield by 25.3%.

Taxon
Winter WheatTriticum aestivumt0
Treatment
N240S60e0
Outcome
grains yielde0
Direction
improvede0
Value
25.3%e0

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

“grains yield of N240S100,N240S60 and N240S20 improved by 25.7%,25.3% and 12.2% respectively”

✓ located verbatim in the source · abstract, characters 1385–1476 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

N240S20 improved wheat grain yield by 12.2%.

Taxon
Winter WheatTriticum aestivumt0
Treatment
N240S20e0
Outcome
grains yielde0
Direction
improvede0
Value
12.2%e0

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

“grains yield of N240S100,N240S60 and N240S20 improved by 25.7%,25.3% and 12.2% respectively”

✓ located verbatim in the source · abstract, characters 1385–1476 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Sulfur fertilization significantly changed wheat thousand-kernel weight at a fixed nitrogen level.

Taxon
Winter WheatTriticum aestivumt0
Treatment
sulphur fertilization treatmentse0
Outcome
1 000-kernel weighte0
Qualifier
same nitrogen supplye0

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

e0

“1 000-kernel weight of sulphur fertilization treatments had significant change under the same nitrogen supply.”

✓ located verbatim in the source · abstract, characters 1535–1645 · show in text ↑
t0

“Winter Wheat”

✓ located verbatim in the source · title, characters 71–83 · show in text ↑

sulfur atom · physiology: osmolytes · Triticum aestivum (wheat)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

sulfur atom · physiology: enzyme activity · Triticum aestivum (wheat)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

sulfur atom · physiology: pigments · Triticum aestivum (wheat)Results agree

7 papers: 7 positive, 0 negative or no effect

6 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

3 papers more in this group

See all 7 papers →

sulfur atom · physiology: photosynthesis · Triticum aestivum (wheat)Results agree

12 papers: 12 positive, 0 negative or no effect

11 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

8 papers more in this group

See all 12 papers →

fertilization · physiology: osmolytes · Triticum aestivum (wheat)Positive and negative results

28 papers: 24 positive, 4 negative or no effect

23 papers in the same direction as this paper · 4 in the opposite direction

  1. no effect
  2. negative
  3. no effect

24 papers more in this group

See all 28 papers →

fertilization · physiology: enzyme activity · Triticum aestivum (wheat)Positive and negative results

32 papers: 29 positive, 3 negative or no effect

2 papers in the same direction as this paper · 29 in the opposite direction

  1. positive
  2. positive
  3. positive

28 papers more in this group

See all 32 papers →

fertilization · physiology: photosynthesis · Triticum aestivum (wheat)Positive and negative results

133 papers: 126 positive, 7 negative or no effect

125 papers in the same direction as this paper · 6 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

129 papers more in this group

See all 133 papers →

fertilization · physiology: pigments · Triticum aestivum (wheat)Positive and negative results

134 papers: 123 positive, 11 negative or no effect

122 papers in the same direction as this paper · 8 in the opposite direction · 3 reporting no difference from an alternative

  1. negative
  2. no effect
  3. negative

130 papers more in this group

See all 134 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.