Paper · 2009 · Guangdong nongye kexue

Preliminary study on the effect of UV B treatment on enzyme activity and seed setting in rice

Qiu Gui-ying

5
claims
10
verbatim quotes
0
citations
3
research areas
✓
Open access · cc-by-nc

Abstract

UV B was treated on autumn rice Texianzhan 13 planted in the field from ear differentiation stageⅠto stage Ⅲ.Several enzyme activities in rice leaves were detected.The results showed that IAA oxidase activity in leaves was not obviously changed at 4th day after UV B treatment,but increased at 11th day.The increase of IAA oxidase activity had relation to UV B treatment hours per day.Peroxidase and Poliphenol oxidase were not affected by UV B treatment.The grains per panicle and the seed setting percentage were investigated.The grains per panicle was not changed by UV B treatment.The seed setting percentage was decreased by UV B treatment.The decrease of seed setting percentage also had relation to UV B treatment hours per day.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc. Read at the source ↗

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 5

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Leaf IAA oxidase activity was unchanged at day 4 after UV B.

Organ / stage
leavese0
Treatment
UV B treatmente0
Outcome
IAA oxidase activitye0
Direction
not obviously changede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“IAA oxidase activity in leaves was not obviously changed at 4th day after UV B treatment”

✓ located verbatim in the source · abstract, characters 188–276 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 89–93 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Leaf IAA oxidase activity increased by day 11 after UV B.

Treatment
UV B treatmente0
Outcome
IAA oxidase activitye0
Direction
increasede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“but increased at 11th day.The increase of IAA oxidase activity had relation to UV B treatment hours per day.”

✓ located verbatim in the source · abstract, characters 277–385 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 89–93 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Peroxidase and polyphenol oxidase activity were unaffected by UV B.

Treatment
UV B treatmente0
Outcome
Peroxidase and Poliphenol oxidasee0
Direction
not affectede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“Peroxidase and Poliphenol oxidase were not affected by UV B treatment.”

✓ located verbatim in the source · abstract, characters 385–455 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 89–93 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Grains per panicle were unchanged by UV B.

Treatment
UV B treatmente0
Outcome
grains per paniclee0
Direction
not changede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The grains per panicle was not changed by UV B treatment.”

✓ located verbatim in the source · abstract, characters 528–585 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 89–93 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

UV B reduced seed setting percentage, with reduction related to daily exposure hours.

Treatment
UV B treatmente0
Outcome
seed setting percentagee0
Direction
decreasede0

Not reportedComparator

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

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e0

“The seed setting percentage was decreased by UV B treatment.The decrease of seed setting percentage also had relation to UV B treatment hours per day.”

✓ located verbatim in the source · abstract, characters 585–735 · show in text ↑
t0

“rice”

✓ located verbatim in the source · title, characters 89–93 · show in text ↑

boron atom · yield · Oryza sativa (rice)Results differ

62 papers: 53 positive, 9 negative or no effect

8 papers in the same direction as this paper · 53 in the opposite direction

  1. positive
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boron atom · physiology: enzyme activity · Oryza sativa (rice)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

2 in the opposite direction

  1. positive
  2. positive
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uv · yield · Oryza sativa (rice)Results differ

15 papers: 2 positive, 13 negative or no effect

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

  1. positive
  2. positive
  3. no effect

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uv · physiology: enzyme activity · Oryza sativa (rice)Positive and negative results

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
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uv · physiology: antioxidant enzymes · Oryza sativa (rice)Positive and negative results

11 papers: 7 positive, 4 negative or no effect

3 papers in the same direction as this paper · 7 in the opposite direction

  1. positive
  2. positive
  3. positive

7 papers more in this group

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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.