Paper · 1987 · Zeitschrift für Pflanzenernährung und Bodenkunde

The influence of 6‐BA‐Application on Yield, Phosphorus and Nitrogen Uptake and Endogenous Cytokinin Concentrations in Carrots (Daucus carota L.) Grown in Phosphorus‐ or Nitrogen‐Depleted Soil

Brigitte Stiebeling; Bruno Pauler; Karl‐Hermann Neumann

5
claims
11
verbatim quotes
7
citations
2
research areas
—
Not open access

Abstract

Abstract The decrease in yield productivity of carrots on nitrogen and phosphate depleted soil could be compensated by 6‐BA sprays. In nitrogen or phosphorus deficient plants the concentration of 2‐iP and 2‐iPA are lower than in the control and an increase could be observed following 6‐BA applications. Nitrogen or phosphorus uptake of deficient plants was virtually not affected by 6‐BA application. Consequently dry matter production per unit nutrient taken up by the plants (nutrient efficiency ratio) was increased as compared to the optimally with nitrogen and phosphate supplied control or the deficient plants.

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Claims 5

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

6-BA sprays compensated carrot yield losses on nitrogen and phosphate depleted soil.

Taxon
carrotsDaucus carotae0
Treatment
6‐BA sprayse0
Outcome
yield productivitye0
Direction
compensatede0
Setting
nitrogen and phosphate depleted soile0

Not reportedComparator

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

Daucus carota
Daucus carota · TaxonZeynel Cebeci · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The decrease in yield productivity of carrots on nitrogen and phosphate depleted soil could be compensated by 6‐BA sprays.”

✓ located verbatim in the source · abstract, characters 9–131 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Nitrogen or phosphorus deficient plants had lower 2‐iP and 2‐iPA concentration than controls.

Taxon
CarrotsDaucus carotat0
Treatment
nitrogen or phosphorus deficiente0
Outcome
concentration of 2‐iP and 2‐iPAe0
Direction
lowere0
Comparator
the controle0

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

Daucus carota
Daucus carota · TaxonZeynel Cebeci · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Carrots (Daucus carota L.)”

✓ located verbatim in the source · title, characters 118–144 · show in text ↑
e0

“In nitrogen or phosphorus deficient plants the concentration of 2‐iP and 2‐iPA are lower than in the control”

✓ located verbatim in the source · abstract, characters 132–240 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

6‐BA increased 2‐iP and 2‐iPA concentrations in deficient plants.

Taxon
CarrotsDaucus carotat0
Treatment
6‐BA applicationse0
Outcome
concentration of 2‐iP and 2‐iPAe1
Direction
increasee0

Not reportedComparator

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

Daucus carota
Daucus carota · TaxonZeynel Cebeci · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Carrots (Daucus carota L.)”

✓ located verbatim in the source · title, characters 118–144 · show in text ↑
e0

“an increase could be observed following 6‐BA applications”

✓ located verbatim in the source · abstract, characters 245–302 · show in text ↑
e1

“the concentration of 2‐iP and 2‐iPA”

✓ located verbatim in the source · abstract, characters 175–210 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

6‐BA virtually did not affect nitrogen or phosphorus uptake in deficient plants.

Taxon
CarrotsDaucus carotat0
Treatment
6‐BA applicatione0
Outcome
Nitrogen or phosphorus uptakee0
Direction
virtually not affectede0

Not reportedComparator

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

Daucus carota
Daucus carota · TaxonZeynel Cebeci · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Carrots (Daucus carota L.)”

✓ located verbatim in the source · title, characters 118–144 · show in text ↑
e0

“Nitrogen or phosphorus uptake of deficient plants was virtually not affected by 6‐BA application.”

✓ located verbatim in the source · abstract, characters 304–401 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

6‐BA increased dry matter production per nutrient taken up relative to optimal controls or deficient plants.

Taxon
CarrotsDaucus carotat0
Treatment
6‐BA applicatione1
Outcome
dry matter production per unit nutrient taken up by the plants (nutrient efficiency ratio)e0
Direction
increasede0
Comparator
the optimally with nitrogen and phosphate supplied control or the deficient plantse0

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

Daucus carota
Daucus carota · TaxonZeynel Cebeci · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

t0

“Carrots (Daucus carota L.)”

✓ located verbatim in the source · title, characters 118–144 · show in text ↑
e0

“Consequently dry matter production per unit nutrient taken up by the plants (nutrient efficiency ratio) was increased as compared to the optimally with nitrogen and phosphate supplied control or the deficient plants.”

✓ located verbatim in the source · abstract, characters 402–618 · show in text ↑
e1

“deficient plants was virtually not affected by 6‐BA application”

✓ located verbatim in the source · abstract, characters 337–400 · show in text ↑

N-benzyladenine · nutrient: content · Daucus carota (carrot)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

N-benzyladenine · molecular: metabolites · Daucus carota (carrot)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 →

N-benzyladenine · yield · Daucus carota (carrot)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 →

phosphorus · molecular: metabolites · Daucus carota (carrot)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

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

This paper is about lacking the nutrient, so it counts the other way round here.

  1. no effect
  2. positive
See all 3 papers →

nitrogen · molecular: metabolites · Daucus carota (carrot)Positive and negative results

8 papers: 4 positive, 4 negative or no effect

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

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

application · yield · Daucus carota (carrot)Positive and negative results

25 papers: 23 positive, 2 negative or no effect

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

  1. positive
  2. no effect
  3. no effect

21 papers more in this group

See all 25 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.