Paper · 2014 · Keji daobao

Influences of UV Radiation on Growth and Nutritional Quality of Three Leaf-color Lettuce Cultivars

Liu Wenk

18
claims
36
verbatim quotes
0
citations
1
research areas
—
Not open access

Abstract

The lettuces of red, purple and green leaves were planted with hydroponics, and the influences of UV radiation on the spectral absorbance, growth and nutritional quality of the lettuces were studied. The results showed that for the three leaf-color lettuce cultivars under UV radiation and blank control, the photosynthetic pigments spectral absorbance values were high and changed drastically in the spectrum of 330-500 nm and 640-690 nm, and were low and changed smoothly in the spectrum of 500-640 nm and 690-800 nm. For the contents of chlorophylla and total photosynthetic pigment, the green lettuce under UV radiation was not remarkably different from the reference, in contrast, the red lettuce increased significantly, but the purple lettuce increased notably only under UV-B radiation. The treatment of UV radiation significantly decreased the shoot fresh weight of the green lettuce, while remarkably reduced that of the purple lettuce, but didn't make that of the red lettuce notably different. The shoot dry weights of the three leaf-color lettuces were lowered greatly under UV radiation. The concentration of phenol for the green lettuce lessened distinctly under UV radiation, but it didn't differ greatly for the purple lettuce. The concentration of phenol for the red lettuce increased remarkably only under UV-B. The treatment of UV radiation significantly reduced the concentration of flavonoid for the green lettuce,but didn't change those of the red and purple lettuces greatly. However, the treatment didn't change the concentration of anthocyaninfor the green lettuce, but enhanced those of the red and purple lettuces greatly. The concentration of soluble sugar for the green lettuce increased notably under UV radiation, and that of the red lettuce was the contrary. But the concentration of soluble sugar for the purple lettuce enhanced greatly only under UV-A radiation.

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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.

Claims 18

Observationobservedoriginal resultmeasured

Claim · model-written summary

Lettuce pigments had high variable absorbance at 330-500 and 640-690 nm and low smooth absorbance at 500-640 and 690-800 nm.

Taxon
LettuceLactuca sativat0
Outcome
photosynthetic pigments spectral absorbance valuese0
Direction
high and changed drasticallye0
Value
330-500 nm and 640-690 nme0

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“the photosynthetic pigments spectral absorbance values were high and changed drastically in the spectrum of 330-500 nm and 640-690 nm, and were low and changed smoothly in the spectrum of 500-640 nm and 690-800 nm”

✓ located verbatim in the source · abstract, characters 305–518 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

chlorophylla and total photosynthetic pigment in green lettuce was not remarkably different under UV radiation and blank control.

Taxon
LettuceLactuca sativat0
Material
green lettucee0
Treatment
UV radiatione0
Outcome
chlorophylla and total photosynthetic pigmente0
Direction
not remarkably differente0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“For the contents of chlorophylla and total photosynthetic pigment, the green lettuce under UV radiation was not remarkably different from the reference, in contrast, the red lettuce increased significantly, but the purple lettuce increased notably only under UV-B radiation.”

✓ located verbatim in the source · abstract, characters 520–794 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

chlorophylla and total photosynthetic pigment in red lettuce was increased significantly under UV radiation.

Taxon
LettuceLactuca sativat0
Material
red lettucee0
Treatment
UV radiatione0
Outcome
chlorophylla and total photosynthetic pigmente0
Direction
increased significantlye0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“For the contents of chlorophylla and total photosynthetic pigment, the green lettuce under UV radiation was not remarkably different from the reference, in contrast, the red lettuce increased significantly, but the purple lettuce increased notably only under UV-B radiation.”

✓ located verbatim in the source · abstract, characters 520–794 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

chlorophylla and total photosynthetic pigment in purple lettuce was increased notably under UV-B radiation.

Taxon
LettuceLactuca sativat0
Material
purple lettucee0
Treatment
UV-B radiatione0
Outcome
chlorophylla and total photosynthetic pigmente0
Direction
increased notablye0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“For the contents of chlorophylla and total photosynthetic pigment, the green lettuce under UV radiation was not remarkably different from the reference, in contrast, the red lettuce increased significantly, but the purple lettuce increased notably only under UV-B radiation.”

✓ located verbatim in the source · abstract, characters 520–794 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

shoot fresh weight in green lettuce was significantly decreased under UV radiation.

Taxon
LettuceLactuca sativat0
Material
green lettucee0
Treatment
UV radiatione0
Outcome
shoot fresh weighte0
Direction
significantly decreasede0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The treatment of UV radiation significantly decreased the shoot fresh weight of the green lettuce, while remarkably reduced that of the purple lettuce, but didn't make that of the red lettuce notably different.”

✓ located verbatim in the source · abstract, characters 795–1005 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

shoot fresh weight in purple lettuce was remarkably reduced under UV radiation.

Taxon
LettuceLactuca sativat0
Material
purple lettucee0
Treatment
UV radiatione0
Outcome
shoot fresh weighte0
Direction
remarkably reducede0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The treatment of UV radiation significantly decreased the shoot fresh weight of the green lettuce, while remarkably reduced that of the purple lettuce, but didn't make that of the red lettuce notably different.”

✓ located verbatim in the source · abstract, characters 795–1005 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

shoot fresh weight in red lettuce was notably different under UV radiation.

Taxon
LettuceLactuca sativat0
Material
red lettucee0
Treatment
UV radiatione0
Outcome
shoot fresh weighte0
Direction
notably differente0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The treatment of UV radiation significantly decreased the shoot fresh weight of the green lettuce, while remarkably reduced that of the purple lettuce, but didn't make that of the red lettuce notably different.”

✓ located verbatim in the source · abstract, characters 795–1005 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

shoot dry weights in three leaf-color lettuces was lowered greatly under UV radiation.

Taxon
LettuceLactuca sativat0
Material
three leaf-color lettucese0
Treatment
UV radiatione0
Outcome
shoot dry weightse0
Direction
lowered greatlye0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The shoot dry weights of the three leaf-color lettuces were lowered greatly under UV radiation.”

✓ located verbatim in the source · abstract, characters 1006–1101 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

concentration of phenol in green lettuce was lessened distinctly under UV radiation.

Taxon
LettuceLactuca sativat0
Material
green lettucee0
Treatment
UV radiatione0
Outcome
concentration of phenole0
Direction
lessened distinctlye0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The concentration of phenol for the green lettuce lessened distinctly under UV radiation, but it didn't differ greatly for the purple lettuce.”

✓ located verbatim in the source · abstract, characters 1102–1244 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

concentration of phenol in purple lettuce was didn't differ greatly under UV radiation.

Taxon
LettuceLactuca sativat0
Material
purple lettucee0
Treatment
UV radiatione0
Outcome
concentration of phenole0
Direction
didn't differ greatlye0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The concentration of phenol for the green lettuce lessened distinctly under UV radiation, but it didn't differ greatly for the purple lettuce.”

✓ located verbatim in the source · abstract, characters 1102–1244 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

concentration of phenol in red lettuce was increased remarkably under UV-B.

Taxon
LettuceLactuca sativat0
Material
red lettucee0
Treatment
UV-Be0
Outcome
concentration of phenole0
Direction
increased remarkablye0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The concentration of phenol for the red lettuce increased remarkably only under UV-B.”

✓ located verbatim in the source · abstract, characters 1245–1330 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

concentration of flavonoid in green lettuce was significantly reduced under UV radiation.

Taxon
LettuceLactuca sativat0
Material
green lettucee0
Treatment
UV radiatione0
Outcome
concentration of flavonoide0
Direction
significantly reducede0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The treatment of UV radiation significantly reduced the concentration of flavonoid for the green lettuce,but didn't change those of the red and purple lettuces greatly.”

✓ located verbatim in the source · abstract, characters 1331–1499 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

concentration of flavonoid in red and purple lettuces was didn't change under UV radiation.

Taxon
LettuceLactuca sativat0
Material
red and purple lettucese0
Treatment
UV radiatione0
Outcome
concentration of flavonoide0
Direction
didn't changee0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The treatment of UV radiation significantly reduced the concentration of flavonoid for the green lettuce,but didn't change those of the red and purple lettuces greatly.”

✓ located verbatim in the source · abstract, characters 1331–1499 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

concentration of anthocyanin in green lettuce was didn't change under UV radiation.

Taxon
LettuceLactuca sativat0
Material
green lettucee0
Treatment
the treatmente0
Outcome
concentration of anthocyanine0
Direction
didn't changee0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“However, the treatment didn't change the concentration of anthocyaninfor the green lettuce, but enhanced those of the red and purple lettuces greatly.”

✓ located verbatim in the source · abstract, characters 1500–1650 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

concentration of anthocyanin in red and purple lettuces was enhanced under UV radiation.

Taxon
LettuceLactuca sativat0
Material
red and purple lettucese0
Treatment
the treatmente0
Outcome
concentration of anthocyanine0
Direction
enhancede0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“However, the treatment didn't change the concentration of anthocyaninfor the green lettuce, but enhanced those of the red and purple lettuces greatly.”

✓ located verbatim in the source · abstract, characters 1500–1650 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

concentration of soluble sugar in green lettuce was increased notably under UV radiation.

Taxon
LettuceLactuca sativat0
Material
green lettucee0
Treatment
UV radiatione0
Outcome
concentration of soluble sugare0
Direction
increased notablye0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The concentration of soluble sugar for the green lettuce increased notably under UV radiation, and that of the red lettuce was the contrary.”

✓ located verbatim in the source · abstract, characters 1651–1791 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

concentration of soluble sugar in red lettuce was the contrary under UV radiation.

Taxon
LettuceLactuca sativat0
Material
red lettucee0
Treatment
UV radiatione0
Outcome
concentration of soluble sugare0
Direction
the contrarye0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“The concentration of soluble sugar for the green lettuce increased notably under UV radiation, and that of the red lettuce was the contrary.”

✓ located verbatim in the source · abstract, characters 1651–1791 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

concentration of soluble sugar in purple lettuce was enhanced greatly under UV-A radiation.

Taxon
LettuceLactuca sativat0
Material
purple lettucee0
Treatment
UV-A radiatione0
Outcome
concentration of soluble sugare0
Direction
enhanced greatlye0

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e0

“But the concentration of soluble sugar for the purple lettuce enhanced greatly only under UV-A radiation.”

✓ located verbatim in the source · abstract, characters 1792–1897 · show in text ↑
t0

“Lettuce”

✓ located verbatim in the source · title, characters 81–88 · show in text ↑

uv · quality: phytochemicals · Lactuca sativa (garden lettuce)Results differ

28 papers: 24 positive, 4 negative or no effect

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

  1. no effect
  2. negative
  3. negative

24 papers more in this group

See all 28 papers →

uv · growth · Lactuca sativa (garden lettuce)Results differ

35 papers: 15 positive, 20 negative or no effect

19 papers in the same direction as this paper · 15 in the opposite direction

  1. positive
  2. positive
  3. positive

31 papers more in this group

See all 35 papers →

uv · physiology: photosynthesis · Lactuca sativa (garden lettuce)Positive and negative results

10 papers: 6 positive, 4 negative or no effect

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

  1. negative
  2. no effect
  3. no effect

6 papers more in this group

See all 10 papers →

uv · physiology: osmolytes · Lactuca sativa (garden lettuce)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 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.