Abstract
Three antioxidants of 0.1% concentration were used to pretreat for different time on rice in vitro embryos to study their effects on inhibiting callus browning of two quality varieties of Indica rice,Guihuazhan and Youzhan No.8.The optimum pretreated times of citric acid were 18 h and 24 h,vitamin C and polyvinylpyrrolidone (PVP) was 3 h.Citric acid had the greatest effect on inhibiting callus browning,but it would reduce callus induction at the same time.Vitamin C not only inhibited callus browning but also improved callus induction and callus growing.PVP had general effect on inhibiting callus from browning.
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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 7
Claim · model-written summary
Citric acid pretreatment for 18 and 24 h was optimal for the rice varieties.
- Taxon
- Indica rice
Oryza sativa Indica Groupt0 - Treatment
- citric acide0
- Outcome
- optimum pretreated timese0
- Value
- 18 h and 24 he0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Indica rice”
e0“The optimum pretreated times of citric acid were 18 h and 24 h”
Claim · model-written summary
Vitamin C and PVP had an optimal pretreatment time of 3 h.
- Taxon
- Indica rice
Oryza sativa Indica Groupt0 - Treatment
- vitamin C and polyvinylpyrrolidone (PVP)e0
- Outcome
- pretreated timese1
- Value
- 3 he0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Indica rice”
e0“vitamin C and polyvinylpyrrolidone (PVP) was 3 h”
e1“The optimum pretreated times of citric acid were 18 h and 24 h”
Claim · model-written summary
Citric acid had the greatest inhibition of callus browning.
- Taxon
- Indica rice
Oryza sativa Indica Groupt0 - Treatment
- Citric acide0
- Outcome
- callus browninge0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Indica rice”
e0“Citric acid had the greatest effect on inhibiting callus browning”
Claim · model-written summary
Citric acid reduced callus induction.
- Taxon
- Indica rice
Oryza sativa Indica Groupt0 - Treatment
- Citric acide1
- Outcome
- callus inductione0
- Direction
- reducee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Indica rice”
e0“it would reduce callus induction at the same time”
e1“Citric acid had the greatest effect on inhibiting callus browning”
Claim · model-written summary
Vitamin C inhibited callus browning.
- Taxon
- Indica rice
Oryza sativa Indica Groupt0 - Treatment
- Vitamin Ce0
- Outcome
- callus browninge0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Indica rice”
e0“Vitamin C not only inhibited callus browning but also improved callus induction and callus growing”
Claim · model-written summary
Vitamin C improved callus induction and growth.
- Taxon
- Indica rice
Oryza sativa Indica Groupt0 - Treatment
- Vitamin Ce0
- Outcome
- callus induction and callus growinge0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Indica rice”
e0“Vitamin C not only inhibited callus browning but also improved callus induction and callus growing”
Claim · model-written summary
PVP generally inhibited callus browning.
- Taxon
- Indica rice
Oryza sativa Indica Groupt0 - Treatment
- PVPe0
- Outcome
- callus from browninge0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“Indica rice”
e0“PVP had general effect on inhibiting callus from browning”
The same questions in other papers
citric acid · growth · Oryza sativa (rice)Positive and negative results
1 paper in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 papers →vitamin C · disease · Oryza sativa (rice)Results agree
1 paper in the same direction as this paper
- positive
vitamin C · growth · Oryza sativa (rice)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.