Paper · 2005

Effects of different levels of nitrogen on physiological characteristics of function leaf and plant traits and yield components of cotton

Sun Hongchun

11
claims
22
verbatim quotes
1
citations
3
research areas
—
Not open access

Abstract

Bt-transgenic hybrid cotton CCRI29 was used, the effects of physiological characteristics of function leaf,plant traits and yield components by applying different levels of nitrogen fertilizer(375.0 kg/hm~2,high N;187.5 kg/hm~2,middle N;0 kg/hm~2,low N) in the field were studied.The main results are as follows:① Changing nitrogen application amount had some effects on carbohydrate metabolism and protein content of function leaf on the stem.Carbohydrate synthesis was inhibited under high nitrogen treatment,but protein content was heightened.The soluble protein content of leaf was the lowest under the treatment of low-nitrogen.② Compared with mid-nitrogen and low-nitrogen,high-nitrogen boosted the plant height and leaf area index,which extended leaf function period,but had little effect on development date.③ Photosynthesis rate of function leaf was the highest under the condition of middle nitrogen.But photosynthesis was reduced under low-nitrogen level,which accelerated the leaf senescence.The soluble protein content of leaf was the lowest under the treatment of low-nitrogen,which accelerated the leaf senescence.④ There was significant difference between the lint yields of different nitrogen conditions and the order of lint yield was mid-nitrogen high-nitrogen low-nitrogen.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher.

The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 11

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High nitrogen inhibited carbohydrate synthesis in cotton functional leaves.

Organ / stage
leaft0
Treatment
high nitrogen treatmente0
Outcome
Carbohydrate synthesise0
Direction
inhibitede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Carbohydrate synthesis was inhibited under high nitrogen treatment,but protein content was heightened.”

✓ located verbatim in the source · abstract, characters 444–546 · show in text ↑
t0

“leaf and plant traits and yield components of cotton”

✓ located verbatim in the source · title, characters 85–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

High nitrogen raised cotton leaf protein content.

Organ / stage
leaft0
Treatment
high nitrogen treatmente0
Outcome
protein contente0
Direction
heightenede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Carbohydrate synthesis was inhibited under high nitrogen treatment,but protein content was heightened.”

✓ located verbatim in the source · abstract, characters 444–546 · show in text ↑
t0

“leaf and plant traits and yield components of cotton”

✓ located verbatim in the source · title, characters 85–137 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Low nitrogen produced the lowest soluble protein content in cotton leaves.

Organ / stage
leafe0
Treatment
low-nitrogene0
Outcome
soluble protein content of leafe0
Direction
loweste0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The soluble protein content of leaf was the lowest under the treatment of low-nitrogen.”

✓ located verbatim in the source · abstract, characters 546–633 · show in text ↑
t0

“cotton”

✓ located verbatim in the source · title, characters 131–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

High nitrogen increased cotton plant height relative to middle and low nitrogen.

Treatment
high-nitrogene0
Outcome
plant heighte0
Direction
boostede0
Comparator
mid-nitrogen and low-nitrogene0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Compared with mid-nitrogen and low-nitrogen,high-nitrogen boosted the plant height and leaf area index,which extended leaf function period,but had little effect on development date.”

✓ located verbatim in the source · abstract, characters 635–816 · show in text ↑
t0

“cotton”

✓ located verbatim in the source · title, characters 131–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

High nitrogen increased cotton leaf area index relative to middle and low nitrogen.

Treatment
high-nitrogene0
Outcome
leaf area indexe0
Direction
boostede0
Comparator
mid-nitrogen and low-nitrogene0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Compared with mid-nitrogen and low-nitrogen,high-nitrogen boosted the plant height and leaf area index,which extended leaf function period,but had little effect on development date.”

✓ located verbatim in the source · abstract, characters 635–816 · show in text ↑
t0

“cotton”

✓ located verbatim in the source · title, characters 131–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

High nitrogen extended cotton leaf function period.

Treatment
high-nitrogene0
Outcome
leaf function periode0
Direction
extendede0
Comparator
mid-nitrogen and low-nitrogene0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Compared with mid-nitrogen and low-nitrogen,high-nitrogen boosted the plant height and leaf area index,which extended leaf function period,but had little effect on development date.”

✓ located verbatim in the source · abstract, characters 635–816 · show in text ↑
t0

“cotton”

✓ located verbatim in the source · title, characters 131–137 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

High nitrogen had little effect on cotton development date.

Treatment
high-nitrogene0
Outcome
development datee0
Direction
little effecte0
Comparator
mid-nitrogen and low-nitrogene0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Compared with mid-nitrogen and low-nitrogen,high-nitrogen boosted the plant height and leaf area index,which extended leaf function period,but had little effect on development date.”

✓ located verbatim in the source · abstract, characters 635–816 · show in text ↑
t0

“cotton”

✓ located verbatim in the source · title, characters 131–137 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Middle nitrogen gave the highest cotton functional leaf photosynthesis rate.

Treatment
middle nitrogene0
Outcome
Photosynthesis rate of function leafe0
Direction
higheste0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Photosynthesis rate of function leaf was the highest under the condition of middle nitrogen.”

✓ located verbatim in the source · abstract, characters 818–910 · show in text ↑
t0

“cotton”

✓ located verbatim in the source · title, characters 131–137 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Low nitrogen reduced cotton photosynthesis.

Treatment
low-nitrogen levele0
Outcome
photosynthesise0
Direction
reducede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“But photosynthesis was reduced under low-nitrogen level,which accelerated the leaf senescence.”

✓ located verbatim in the source · abstract, characters 910–1004 · show in text ↑
t0

“cotton”

✓ located verbatim in the source · title, characters 131–137 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Low nitrogen accelerated cotton leaf senescence.

Treatment
low-nitrogen levele0
Outcome
leaf senescencee0
Direction
acceleratede0

Not reportedComparator

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“But photosynthesis was reduced under low-nitrogen level,which accelerated the leaf senescence.”

✓ located verbatim in the source · abstract, characters 910–1004 · show in text ↑
t0

“cotton”

✓ located verbatim in the source · title, characters 131–137 · show in text ↑
Intervention effectobservedoriginal resultmixedsignificant (as stated)measured

Claim · model-written summary

Cotton lint yield differed significantly among nitrogen treatments, ranking middle, high, then low.

Treatment
different nitrogen conditionse0
Outcome
lint yieldse0
Direction
order of lint yield was mid-nitrogen high-nitrogen low-nitrogene0
Comparator
mid-nitrogen high-nitrogen low-nitrogene0

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

Gossypium hirsutum
Gossypium hirsutum · TaxonChriKo · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“There was significant difference between the lint yields of different nitrogen conditions and the order of lint yield was mid-nitrogen high-nitrogen low-nitrogen.”

✓ located verbatim in the source · abstract, characters 1131–1293 · show in text ↑
t0

“cotton”

✓ located verbatim in the source · title, characters 131–137 · show in text ↑

nitrogen · quality: sugar starch · Gossypium hirsutum (cotton)Positive and negative results

5 papers: 3 positive, 2 negative or no effect

1 paper in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

nitrogen · physiology: photosynthesis · Gossypium hirsutum (cotton)Positive and negative results

31 papers: 22 positive, 9 negative or no effect

21 papers in the same direction as this paper · 9 in the opposite direction

  1. no effect
  2. no effect
  3. negative

27 papers more in this group

See all 31 papers →

nitrogen · quality: protein · Gossypium hirsutum (cotton)Results agree

16 papers: 16 positive, 0 negative or no effect

15 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

12 papers more in this group

See all 16 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.