Paper · 2013 · Hubei nongye kexue

Effects of High Phosphorus Stress on Growth and Absorption and Distribution of Mineral Nutrients in Cucumber Seedlings

Shen Ren-fang

8
claims
15
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

The growth and absorption and distribution of mineral nutrients in cucumber seedlings were studied under different phosphorus(P) levels(0,0.1,0.5,1.0,10.0,20.0 mmol/L).The results showed that,①the dry weight of roots,stems and leaves of cucumber seedlings increased firstly and then reduced with the increase of P levels.When P level was at or higher than 10.0 mmol/L,high-P-stress symptoms appeared at the oldest leaves initially,i.e.midrib and vein of leaf rose and turned into bright yellow along midrib and vein of leaf.Old leaves were firing withered and young leaves were intervein chlorosis when P toxicity was serious.②P concentration increased significantly in plants with the increase of P level,the highest P concentration reached to 1.28% of dry weight.Potassium concentration in plants increased firstly and then reduced,copper concentrations in plants decreased,but concentration of calcium,magnesium,manganese and zinc in plants did not change with the increase of P level.The distribution model of all the nutrients among roots,stems and leaves did not change under high P level.

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Claims 8

Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Root, stem and leaf dry weight first increased then decreased with phosphorus level.

Taxon
cucumber seedlingsCucumis sativuse0
Treatment
P levelse0
Outcome
dry weight of roots,stems and leavese0
Direction
increased firstly and then reducede0

Not reportedComparator

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

Cucumis sativus
Cucumis sativus · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“the dry weight of roots,stems and leaves of cucumber seedlings increased firstly and then reduced with the increase of P levels.”

✓ located verbatim in the source · abstract, characters 193–321 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At 10.0 mmol/L or higher, older cucumber leaves first developed high-P-stress symptoms.

Taxon
cucumberCucumis sativust0
Organ / stage
oldest leavese0
Treatment
P level was at or higher than 10.0 mmol/Le0
Outcome
high-P-stress symptoms appeared at the oldest leavese0

Not reportedComparatorDirection

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

Cucumis sativus
Cucumis sativus · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“When P level was at or higher than 10.0 mmol/L,high-P-stress symptoms appeared at the oldest leaves initially,i.e.midrib and vein of leaf rose and turned into bright yellow along midrib and vein of leaf.”

✓ located verbatim in the source · abstract, characters 321–524 · show in text ↑
t0

“Cucumber Seedlings”

✓ located verbatim in the source · title, characters 100–118 · show in text ↑
Observationobservedoriginal resultnegativemeasured

Claim · model-written summary

Severe P toxicity caused old leaf withering and young leaf intervein chlorosis.

Taxon
cucumberCucumis sativust0
Outcome
Old leaves were firing withered and young leaves were intervein chlorosise0
Qualifier
P toxicity was seriouse0

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

Cucumis sativus
Cucumis sativus · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Old leaves were firing withered and young leaves were intervein chlorosis when P toxicity was serious.”

✓ located verbatim in the source · abstract, characters 524–626 · show in text ↑
t0

“Cucumber Seedlings”

✓ located verbatim in the source · title, characters 100–118 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Plant P concentration increased significantly with phosphorus level and reached 1.28% dry weight.

Taxon
cucumberCucumis sativust0
Treatment
P levele0
Outcome
P concentratione0
Direction
increasede0
Value
1.28% of dry weighte0

Not reportedComparator

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

Cucumis sativus
Cucumis sativus · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“P concentration increased significantly in plants with the increase of P level,the highest P concentration reached to 1.28% of dry weight.”

✓ located verbatim in the source · abstract, characters 627–765 · show in text ↑
t0

“Cucumber Seedlings”

✓ located verbatim in the source · title, characters 100–118 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Plant potassium concentration first increased then decreased with P level.

Taxon
cucumberCucumis sativust0
Treatment
P levele0
Outcome
Potassium concentration in plantse0
Direction
increased firstly and then reducede0

Not reportedComparator

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

Cucumis sativus
Cucumis sativus · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Potassium concentration in plants increased firstly and then reduced,copper concentrations in plants decreased,but concentration of calcium,magnesium,manganese and zinc in plants did not change with the increase of P level.”

✓ located verbatim in the source · abstract, characters 765–988 · show in text ↑
t0

“Cucumber Seedlings”

✓ located verbatim in the source · title, characters 100–118 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Plant copper concentration decreased with P level.

Taxon
cucumberCucumis sativust0
Treatment
P levele0
Outcome
copper concentrations in plantse0
Direction
decreasede0

Not reportedComparator

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

Cucumis sativus
Cucumis sativus · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Potassium concentration in plants increased firstly and then reduced,copper concentrations in plants decreased,but concentration of calcium,magnesium,manganese and zinc in plants did not change with the increase of P level.”

✓ located verbatim in the source · abstract, characters 765–988 · show in text ↑
t0

“Cucumber Seedlings”

✓ located verbatim in the source · title, characters 100–118 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Plant calcium, magnesium, manganese and zinc concentrations did not change with P level.

Taxon
cucumberCucumis sativust0
Treatment
P levele0
Outcome
concentration of calcium,magnesium,manganese and zinc in plantse0
Direction
did not changee0

Not reportedComparator

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

Cucumis sativus
Cucumis sativus · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“concentration of calcium,magnesium,manganese and zinc in plants did not change with the increase of P level.”

✓ located verbatim in the source · abstract, characters 880–988 · show in text ↑
t0

“Cucumber Seedlings”

✓ located verbatim in the source · title, characters 100–118 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

High P did not change nutrient distribution among roots, stems and leaves.

Taxon
cucumberCucumis sativust0
Treatment
high P levele0
Outcome
distribution model of all the nutrients among roots,stems and leavese0
Direction
did not changee0

Not reportedComparator

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

Cucumis sativus
Cucumis sativus · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“The distribution model of all the nutrients among roots,stems and leaves did not change under high P level.”

✓ located verbatim in the source · abstract, characters 988–1095 · show in text ↑
t0

“Cucumber Seedlings”

✓ located verbatim in the source · title, characters 100–118 · show in text ↑

phosphorus · molecular: metabolites · Cucumis sativus (cucumber)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

  1. positive
    Phosphate deficiency reduced plant phosphate content to 10% of control.

    GROWTH AND METABOLISM OF CUCUMBER IN PHOSPHATE-DEFICIENT CONDITIONS · 2002 · compared with control

    Opposite directionAbout lacking this nutrient, so it counts the other way round

  2. positive
  3. no effect
See all 4 papers →

phosphorus · disease · Cucumis sativus (cucumber)Positive and negative results

6 papers: 3 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

phosphorus · nutrient: content · Cucumis sativus (cucumber)Positive and negative results

6 papers: 1 positive, 5 negative or no effect

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

  1. positive
  2. no effect
  3. negative

2 papers more in this group

See all 6 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.