Paper · 2009 · Zhongguo yancao xuebao

Effect of soil moisture on aroma and main chemical compositions in mature stage flue-cured tobacco leave

Yong Huang

6
claims
10
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

Effect of soil moisture on aroma and chemical components of flue-cured tobacco during various mature stages was studied. Tobacco plants were grown in pots and relative soil moistures were controlled at 40% or 80% of every treatment at different stages i.e. defining length stage,immature stage,and mature stage. Results indicated that content of cembranoids,carotenoids,Maillard chemical substances,and aromatic fragrance substances of flue-cured tobacco increased through short-time drought after topping,while continuous drought was disadvantageous to the formation of those latent fragrant substances. Any short-time drought was benefit to the formation of latent fragrant substances,while continuous drought was unfavorable during mature stage. Content of water-soluble sugar and reductive sugar in green leaves increased with disconnected drought after topping,so did the content of total nitrogen and nicotine. Potassium content increased a little at defining length,mature,and whole mature stage drought.

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Claims 6

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Short-time drought after topping increased the content of cembranoids and carotenoids in flue-cured tobacco.

Taxon
flue-cured tobaccoe1
Treatment
short-time drought after toppinge1
Outcome
content of cembranoids,carotenoidse1
Direction
increasede1

Not reportedComparator

Verbatim

e1

“content of cembranoids,carotenoids,Maillard chemical substances,and aromatic fragrance substances of flue-cured tobacco increased through short-time drought after topping”

✓ located verbatim in the source · abstract, characters 335–505 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Short-time drought after topping increased the content of Maillard chemical substances and aromatic fragrance substances in flue-cured tobacco.

Taxon
flue-cured tobaccoe1
Treatment
short-time drought after toppinge1
Outcome
Maillard chemical substances,and aromatic fragrance substancese1
Direction
increasede1

Not reportedComparator

Verbatim

e1

“content of cembranoids,carotenoids,Maillard chemical substances,and aromatic fragrance substances of flue-cured tobacco increased through short-time drought after topping”

✓ located verbatim in the source · abstract, characters 335–505 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Continuous drought was disadvantageous to the formation of latent fragrant substances in flue-cured tobacco.

Taxon
flue-cured tobaccoe1
Treatment
continuous droughte2
Outcome
formation of those latent fragrant substancese2
Direction
disadvantageouse2

Not reportedComparator

Verbatim

e1

“content of cembranoids,carotenoids,Maillard chemical substances,and aromatic fragrance substances of flue-cured tobacco increased through short-time drought after topping”

✓ located verbatim in the source · abstract, characters 335–505 · show in text ↑
e2

“while continuous drought was disadvantageous to the formation of those latent fragrant substances”

✓ located verbatim in the source · abstract, characters 506–603 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Disconnected drought after topping increased water-soluble sugar and reductive sugar content in green leaves.

Taxon
flue-cured tobaccoe1
Organ / stage
green leavese3
Treatment
disconnected drought after toppinge3
Outcome
Content of water-soluble sugar and reductive sugare3
Direction
increasede3

Not reportedComparator

Verbatim

e1

“content of cembranoids,carotenoids,Maillard chemical substances,and aromatic fragrance substances of flue-cured tobacco increased through short-time drought after topping”

✓ located verbatim in the source · abstract, characters 335–505 · show in text ↑
e3

“Content of water-soluble sugar and reductive sugar in green leaves increased with disconnected drought after topping,so did the content of total nitrogen and nicotine”

✓ located verbatim in the source · abstract, characters 749–915 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Disconnected drought after topping increased total nitrogen and nicotine content in flue-cured tobacco.

Taxon
flue-cured tobaccoe1
Treatment
disconnected drought after toppinge3
Outcome
the content of total nitrogen and nicotinee3
Direction
increasede3

Not reportedComparator

Verbatim

e1

“content of cembranoids,carotenoids,Maillard chemical substances,and aromatic fragrance substances of flue-cured tobacco increased through short-time drought after topping”

✓ located verbatim in the source · abstract, characters 335–505 · show in text ↑
e3

“Content of water-soluble sugar and reductive sugar in green leaves increased with disconnected drought after topping,so did the content of total nitrogen and nicotine”

✓ located verbatim in the source · abstract, characters 749–915 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Drought at defining length, mature and whole mature stages increased potassium content a little in flue-cured tobacco.

Taxon
flue-cured tobaccoe1
Treatment
defining length,mature,and whole mature stage droughte4
Outcome
Potassium contente4
Direction
increasede4
Value
a littlee4

Not reportedComparator

Verbatim

e1

“content of cembranoids,carotenoids,Maillard chemical substances,and aromatic fragrance substances of flue-cured tobacco increased through short-time drought after topping”

✓ located verbatim in the source · abstract, characters 335–505 · show in text ↑
e4

“Potassium content increased a little at defining length,mature,and whole mature stage drought”

✓ located verbatim in the source · abstract, characters 917–1010 · show in text ↑

drought · physiology: pigments · Nicotiana tabacum (tobacco)Positive and negative results

12 papers: 3 positive, 9 negative or no effect

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drought · molecular: metabolites · Nicotiana tabacum (tobacco)Positive and negative results

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pruning · molecular: metabolites · Nicotiana tabacum (tobacco)Positive and negative results

27 papers: 23 positive, 4 negative or no effect

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

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pruning · physiology: pigments · Nicotiana tabacum (tobacco)Results agree

4 papers: 4 positive, 0 negative or no effect

3 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive
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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.