Paper · 2006 · Acta Agriculturae Boreali-Sinica

Effect of UV-B Radiation on the Growth and Photosynthesis of Cucumber(Cucumis sativus L.) Seedlings

Sun Lingqiang

10
claims
20
verbatim quotes
3
citations
1
research areas
—
Not open access

Abstract

The effect of enhanced UV-B radiation on the growth and photosynthesis of cucumber(Cucumis sativus L.) seedlings was studied.The results showed that the seedling height was significantly inhibited by the UV-B radiation.The root growth and root activity of cucumber seedlings,the chlorophyll synthesis and photosynthesis were promoted by the UV-B radiation at low dosage.But high dosage of UV-B radiation inhibited the roots activity,and caused great damage of chlorophyll and decrease in photosynthetic rate(Pn).The content of SOD and POD of seedlings was higher than that of the control at low dosage of UV-B radiation.However,the content of seedling SOD was lower than that of the control but the content of seedling POD was higher than that of the control at high dosage of UV-B radiation.It suggested that the strong seedlings were facilitated by low dosage UV-B radiation.

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Claims 10

Intervention effectobservedoriginal resultnegativesignificant (as stated)measured

Claim · model-written summary

UV-B radiation significantly inhibited the seedling height of cucumber.

Taxon
Cucumis sativus L.Cucumis sativust0
Treatment
UV-B radiatione0
Outcome
seedling heighte0
Direction
inhibitede0

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

t0

“Cucumber(Cucumis sativus L.) Seedlings”

✓ located verbatim in the source · title, characters 61–99 · show in text ↑
e0

“the seedling height was significantly inhibited by the UV-B radiation”

✓ located verbatim in the source · abstract, characters 149–218 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Low dosage UV-B radiation promoted root growth and root activity of cucumber seedlings.

Taxon
Cucumis sativus L.Cucumis sativust0
Treatment
UV-B radiation at low dosagee1
Outcome
root growth and root activitye1
Direction
promotede1

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

t0

“Cucumber(Cucumis sativus L.) Seedlings”

✓ located verbatim in the source · title, characters 61–99 · show in text ↑
e1

“The root growth and root activity of cucumber seedlings,the chlorophyll synthesis and photosynthesis were promoted by the UV-B radiation at low dosage”

✓ located verbatim in the source · abstract, characters 219–369 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Low dosage UV-B radiation promoted chlorophyll synthesis and photosynthesis of cucumber seedlings.

Taxon
Cucumis sativus L.Cucumis sativust0
Treatment
UV-B radiation at low dosagee1
Outcome
chlorophyll synthesis and photosynthesise1
Direction
promotede1

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

t0

“Cucumber(Cucumis sativus L.) Seedlings”

✓ located verbatim in the source · title, characters 61–99 · show in text ↑
e1

“The root growth and root activity of cucumber seedlings,the chlorophyll synthesis and photosynthesis were promoted by the UV-B radiation at low dosage”

✓ located verbatim in the source · abstract, characters 219–369 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High dosage UV-B radiation inhibited the root activity of cucumber seedlings.

Taxon
Cucumis sativus L.Cucumis sativust0
Treatment
high dosage of UV-B radiatione2
Outcome
roots activitye2
Direction
inhibitede2

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

t0

“Cucumber(Cucumis sativus L.) Seedlings”

✓ located verbatim in the source · title, characters 61–99 · show in text ↑
e2

“But high dosage of UV-B radiation inhibited the roots activity,and caused great damage of chlorophyll and decrease in photosynthetic rate(Pn)”

✓ located verbatim in the source · abstract, characters 370–511 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High dosage UV-B radiation caused great damage of chlorophyll in cucumber seedlings.

Taxon
Cucumis sativus L.Cucumis sativust0
Treatment
high dosage of UV-B radiatione2
Outcome
chlorophylle2
Direction
damagee2

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

t0

“Cucumber(Cucumis sativus L.) Seedlings”

✓ located verbatim in the source · title, characters 61–99 · show in text ↑
e2

“But high dosage of UV-B radiation inhibited the roots activity,and caused great damage of chlorophyll and decrease in photosynthetic rate(Pn)”

✓ located verbatim in the source · abstract, characters 370–511 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High dosage UV-B radiation decreased the photosynthetic rate of cucumber seedlings.

Taxon
Cucumis sativus L.Cucumis sativust0
Treatment
high dosage of UV-B radiatione2
Outcome
photosynthetic ratee2
Direction
decreasee2

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

t0

“Cucumber(Cucumis sativus L.) Seedlings”

✓ located verbatim in the source · title, characters 61–99 · show in text ↑
e2

“But high dosage of UV-B radiation inhibited the roots activity,and caused great damage of chlorophyll and decrease in photosynthetic rate(Pn)”

✓ located verbatim in the source · abstract, characters 370–511 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Low dosage UV-B radiation increased SOD and POD content of cucumber seedlings relative to control.

Taxon
Cucumis sativus L.Cucumis sativust0
Treatment
low dosage of UV-B radiatione3
Outcome
content of SOD and PODe3
Direction
highere3
Comparator
controle3

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

t0

“Cucumber(Cucumis sativus L.) Seedlings”

✓ located verbatim in the source · title, characters 61–99 · show in text ↑
e3

“The content of SOD and POD of seedlings was higher than that of the control at low dosage of UV-B radiation”

✓ located verbatim in the source · abstract, characters 512–619 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

High dosage UV-B radiation lowered the SOD content of cucumber seedlings relative to control.

Taxon
Cucumis sativus L.Cucumis sativust0
Treatment
high dosage of UV-B radiatione4
Outcome
content of seedling SODe4
Direction
lowere4
Comparator
controle4

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

t0

“Cucumber(Cucumis sativus L.) Seedlings”

✓ located verbatim in the source · title, characters 61–99 · show in text ↑
e4

“However,the content of seedling SOD was lower than that of the control but the content of seedling POD was higher than that of the control at high dosage of UV-B radiation”

✓ located verbatim in the source · abstract, characters 620–791 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

High dosage UV-B radiation raised the POD content of cucumber seedlings relative to control.

Taxon
Cucumis sativus L.Cucumis sativust0
Treatment
high dosage of UV-B radiatione4
Outcome
content of seedling PODe4
Direction
highere4
Comparator
controle4

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

t0

“Cucumber(Cucumis sativus L.) Seedlings”

✓ located verbatim in the source · title, characters 61–99 · show in text ↑
e4

“However,the content of seedling SOD was lower than that of the control but the content of seedling POD was higher than that of the control at high dosage of UV-B radiation”

✓ located verbatim in the source · abstract, characters 620–791 · show in text ↑
Observationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors suggest that strong seedlings were facilitated by low dosage UV-B radiation.

Taxon
Cucumis sativus L.Cucumis sativust0
Treatment
low dosage UV-B radiatione5
Outcome
strong seedlings were facilitatede5

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

t0

“Cucumber(Cucumis sativus L.) Seedlings”

✓ located verbatim in the source · title, characters 61–99 · show in text ↑
e5

“It suggested that the strong seedlings were facilitated by low dosage UV-B radiation”

✓ located verbatim in the source · abstract, characters 792–876 · show in text ↑

uv · physiology: pigments · Cucumis sativus (cucumber)Results differ

10 papers: 4 positive, 6 negative or no effect

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

  1. positive
  2. positive
  3. positive

6 papers more in this group

See all 10 papers →

uv · physiology: photosynthesis · Cucumis sativus (cucumber)Results differ

13 papers: 4 positive, 9 negative or no effect

3 papers in the same direction as this paper · 9 in the opposite direction

  1. no effect
  2. no effect
  3. negative

9 papers more in this group

See all 13 papers →

uv · growth · Cucumis sativus (cucumber)Results differ

39 papers: 10 positive, 29 negative or no effect

9 papers in the same direction as this paper · 29 in the opposite direction

  1. negative
  2. negative
  3. negative

35 papers more in this group

See all 39 papers →

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

11 papers: 7 positive, 4 negative or no effect

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

  1. negative
  2. negative
  3. no effect

7 papers more in this group

See all 11 papers →

uv · physiology: antioxidant enzymes · Cucumis sativus (cucumber)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
See all 4 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.