Paper · 2011 · Acta Agriculturae Boreali-Sinica

Effect of Planting Density and Apical Regulator on the Contents of Neutral Aroma Components in Flue-cured Tobacco Leaf

Di Zhang

7
claims
14
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

During 2008-2009,a field experiment was employed to study the contents of neutral aroma components in flue-cured tobacco leaf under plant density and apical regulator using the tobacco cultivar Jiyan No.9(local cultivars) in the Dunhua flue-cured tobacco producing area.Results showed that: both of the treatments,namely planting density and apical regulator,and their interactions extremely significantly affected five categories(the contents of products degraded by carotene,the contents of products degraded by cembranes,the contents of products of browing reaction,the contents of phenylalanine,the contents of other categories of neutral aroma components)of the contents of neutral aroma components;Effect of apical regulator is greater than plant density;With the planting density decreasing,the contents of different categories of neutral aroma components showed the tendency of decreased first and ascend later.The influence of apical regulator B2 on the contents of neutral aroma components in flue-cured tobacco leaf was stronger than B1 and B3;The present thesis concludes that structure of planting density A1(16 500 trees/ha) and apical regulator B2 on the quality of flue-cured tobacco leaf was reasonable,and the contents of neutral aroma components is biggest.

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Claims 7

Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Planting density significantly affected five categories of neutral aroma components.

Treatment
planting densitye0
Outcome
contents of neutral aroma componentse0

Not reportedComparatorDirection

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

t0

“Flue-cured Tobacco Leaf”

✓ located verbatim in the source · title, characters 95–118 · show in text ↑
e0

“both of the treatments,namely planting density and apical regulator,and their interactions extremely significantly affected five categories(the contents of products degraded by carotene,the contents of products degraded by cembranes,the contents of products of browing reaction,the contents of phenylalanine,the contents of other categories of neutral aroma components)of the contents of neutral aroma components”

✓ located verbatim in the source · abstract, characters 291–703 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Apical regulator significantly affected five categories of neutral aroma components.

Treatment
apical regulatore0
Outcome
contents of neutral aroma componentse0

Not reportedComparatorDirection

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

t0

“Flue-cured Tobacco Leaf”

✓ located verbatim in the source · title, characters 95–118 · show in text ↑
e0

“both of the treatments,namely planting density and apical regulator,and their interactions extremely significantly affected five categories(the contents of products degraded by carotene,the contents of products degraded by cembranes,the contents of products of browing reaction,the contents of phenylalanine,the contents of other categories of neutral aroma components)of the contents of neutral aroma components”

✓ located verbatim in the source · abstract, characters 291–703 · show in text ↑
Associationobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Density and regulator interacted significantly in their effects on aroma components.

Treatment
planting density and apical regulatore0
Outcome
contents of neutral aroma componentse1

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

t0

“Flue-cured Tobacco Leaf”

✓ located verbatim in the source · title, characters 95–118 · show in text ↑
e0

“planting density and apical regulator,and their interactions extremely significantly affected five categories”

✓ located verbatim in the source · abstract, characters 321–430 · show in text ↑
e1

“of the contents of neutral aroma components”

✓ located verbatim in the source · abstract, characters 660–703 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The regulator effect exceeded the density effect.

Outcome
Effect of apical regulatore0
Direction
greater thane0
Comparator
plant densitye0

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

t0

“Flue-cured Tobacco Leaf”

✓ located verbatim in the source · title, characters 95–118 · show in text ↑
e0

“Effect of apical regulator is greater than plant density”

✓ located verbatim in the source · abstract, characters 704–760 · show in text ↑
Associationobservedoriginal resultmixedmeasured

Claim · model-written summary

As planting density declined, component contents first declined then rose.

Treatment
planting density decreasinge0
Outcome
contents of different categories of neutral aroma componentse0
Direction
decreased first and ascend latere0

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

t0

“Flue-cured Tobacco Leaf”

✓ located verbatim in the source · title, characters 95–118 · show in text ↑
e0

“With the planting density decreasing,the contents of different categories of neutral aroma components showed the tendency of decreased first and ascend later”

✓ located verbatim in the source · abstract, characters 761–918 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Regulator B2 influenced aroma components more strongly than B1 and B3.

Treatment
apical regulator B2e0
Outcome
contents of neutral aroma componentse0
Direction
stronger thane0
Comparator
B1 and B3e0

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

t0

“Flue-cured Tobacco Leaf”

✓ located verbatim in the source · title, characters 95–118 · show in text ↑
e0

“The influence of apical regulator B2 on the contents of neutral aroma components in flue-cured tobacco leaf was stronger than B1 and B3”

✓ located verbatim in the source · abstract, characters 919–1054 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Density A1 with regulator B2 gave the largest aroma component content.

Treatment
planting density A1(16 500 trees/ha) and apical regulator B2e0
Outcome
contents of neutral aroma componentse0
Direction
biggeste0

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

“planting density A1(16 500 trees/ha) and apical regulator B2 on the quality of flue-cured tobacco leaf was reasonable,and the contents of neutral aroma components is biggest”

✓ located verbatim in the source · abstract, characters 1102–1275 · show in text ↑

density · quality: phytochemicals · Nicotiana tabacum (tobacco)Positive and negative results

5 papers: 2 positive, 3 negative or no effect

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

  1. no effect
  2. no effect
  3. negative

1 paper more in this group

See all 5 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.