Paper · 2001 · Yunnan Daxue xuebao. Shehui kexue ban

Research on the Metabolism Rules of Nitrogenous Compounds in Flue-cured Tobacco Leaves in Yunnan

Yun Deng

7
claims
16
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Metabolic rules of nitrogenous compounds(total N,nicotine,protein,and amino acid)in central and upper leaves of K326 have been studied with different amounts and forms of N fertilizer.The content of total N,protein,amino acid in central leaves increases as the amount of nitrogen as the amount of nitrogenous fertilizer increase,but nicotine shows no obvious change.The form of N doesn't have any obvious influence on the content of total N,protein or amino acid in central leaves.The nicotine content in tobacco leaves in the mature stage declines with increasing ratio of NO -1 3-N fertilizer.The content of all nitrogenous compounds in upper leaves is obviously affected by the amount of N.It becomes higher when more N is used.The content ofnitrogenous compounds in a treatment of 180?kg/hm 2 is much greater than that in the treatments of 60?kg/hm 2 and 120?kg/hm 2.The effect of the form of N on nitrogenous compounds in upper leaves is consistent with that in central leaves.

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Claims 7

Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Increasing nitrogen fertilizer increased total nitrogen, protein and amino acid content in central leaves.

Material
K326e1
Organ / stage
central leavese0
Treatment
nitrogenous fertilizere0
Outcome
content of total N,protein,amino acide0
Direction
increasese0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“The content of total N,protein,amino acid in central leaves increases as the amount of nitrogen as the amount of nitrogenous fertilizer increase”

✓ located verbatim in the source · abstract, characters 184–328 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 72–79 · show in text ↑
e1

“central and upper leaves of K326”

✓ located verbatim in the source · abstract, characters 84–116 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nicotine in central leaves showed no obvious change as nitrogen fertilizer amount increased.

Material
K326e1
Organ / stage
central leavese0
Treatment
nitrogenous fertilizere0
Outcome
nicotinee0
Direction
no obvious changee0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“The content of total N,protein,amino acid in central leaves increases as the amount of nitrogen as the amount of nitrogenous fertilizer increase,but nicotine shows no obvious change.”

✓ located verbatim in the source · abstract, characters 184–366 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 72–79 · show in text ↑
e1

“central and upper leaves of K326”

✓ located verbatim in the source · abstract, characters 84–116 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen form had no obvious influence on central-leaf total nitrogen, protein or amino acid content.

Organ / stage
central leavese0
Treatment
form of Ne0
Outcome
content of total N,protein or amino acide0
Direction
doesn't have any obvious influencee0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“The form of N doesn't have any obvious influence on the content of total N,protein or amino acid in central leaves.”

✓ located verbatim in the source · abstract, characters 366–481 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 72–79 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Mature tobacco leaf nicotine declined with an increasing nitrate nitrogen fertilizer ratio.

Organ / stage
leaves in the mature stagee0
Treatment
increasing ratio of NO -1 3-N fertilizere0
Outcome
nicotine contente0
Direction
declinese0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“The nicotine content in tobacco leaves in the mature stage declines with increasing ratio of NO -1 3-N fertilizer.”

✓ located verbatim in the source · abstract, characters 481–595 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

More nitrogen increased upper-leaf nitrogenous compound content.

Organ / stage
upper leavese0
Treatment
more Ne0
Outcome
content of all nitrogenous compoundse0
Direction
highere0

Not reportedComparator

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“The content of all nitrogenous compounds in upper leaves is obviously affected by the amount of N.It becomes higher when more N is used.”

✓ located verbatim in the source · abstract, characters 595–731 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 72–79 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Upper-leaf nitrogenous compound content at 180?kg/hm 2 was much greater than at 60?kg/hm 2 and 120?kg/hm 2.

Organ / stage
upper leavese1
Treatment
180?kg/hm 2e0
Outcome
content ofnitrogenous compoundse0
Direction
much greatere0
Comparator
60?kg/hm 2 and 120?kg/hm 2e0

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“The content ofnitrogenous compounds in a treatment of 180?kg/hm 2 is much greater than that in the treatments of 60?kg/hm 2 and 120?kg/hm 2.”

✓ located verbatim in the source · abstract, characters 731–871 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 72–79 · show in text ↑
e1

“The content of all nitrogenous compounds in upper leaves”

✓ located verbatim in the source · abstract, characters 595–651 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Nitrogen form effects on upper-leaf nitrogenous compounds were consistent with those in central leaves.

Organ / stage
upper leavese0
Treatment
form of Ne0
Outcome
nitrogenous compoundse0
Comparator
central leavese0

Not reportedDirection

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

Nicotiana tabacum
Nicotiana tabacum · TaxonJom / Joachim Müllerchen · CC BY 2.5 · Wikimedia Commons ↗

Verbatim

e0

“The effect of the form of N on nitrogenous compounds in upper leaves is consistent with that in central leaves.”

✓ located verbatim in the source · abstract, characters 871–982 · show in text ↑
t0

“Tobacco”

✓ located verbatim in the source · title, characters 72–79 · show in text ↑

fertilization · molecular: metabolites · Nicotiana tabacum (tobacco)Results differ

81 papers: 72 positive, 9 negative or no effect

8 papers in the same direction as this paper · 72 in the opposite direction

  1. positive
  2. positive
  3. positive

77 papers more in this group

See all 81 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.