Abstract
Raphanus sativus L. Chinese Radish Jumbo Scarlet has characteristics that make it an excellent plant model for vernalization studies. This study further characterizes flower induction of R. sativus Chinese Radish Jumbo Scarlet. Seed were imbibed in distilled water containing 0, 10-5 M or 10-3 M GA3 for 24 h and were then exposed to 6 +/- 0.5 degrees C (vernalized) for 0, 2, 4, 6, or 8 days. Seedlings were then grown under a short- (8 h) or long-day photoperiod (8 h with or without a 4-h night interruption; 2200-0200 h). Of unvernalized plants grown under long- and short-day conditions, 45 and 3% flowered, respectively. Saturation of the vernalization response occurred after a 4- or 8-day vernalization treatment when plants were placed under long- or short-days, respectively. Basal leaf number and days to anthesis decreased when seeds were cooled for 2 or 4 days and were imbibed with 10-3 M GA3 compared to distilled water only. These data indicate that R. sativus Chinese Jumbo Scarlet has principally an obligate vernalization requirement when grown under short-days. GA3 application only facilitated flowering when the length of the vernalization treatment was marginal. Taken together, these data support the use of this plant as a model plant for identifying vernalization responses under short-day conditions.
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Claims 9
Claim · model-written summary
Without vernalization, 45% of long-day plants flowered.
- Taxon
- Raphanus sativus
Raphanus sativust0 - Outcome
- flowerede0
- Value
- 45e0
- Qualifier
- long- and short-day conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of unvernalized plants grown under long- and short-day conditions, 45 and 3% flowered, respectively.”
t0“Raphanus sativus”
Claim · model-written summary
Without vernalization, 3% of short-day plants flowered.
- Taxon
- Raphanus sativusRaphanus sativust0
- Outcome
- flowerede0
- Value
- 3%e0
- Qualifier
- long- and short-day conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of unvernalized plants grown under long- and short-day conditions, 45 and 3% flowered, respectively.”
t0“Raphanus sativus”
Claim · model-written summary
The long-day vernalization response saturated after four days.
- Taxon
- Raphanus sativusRaphanus sativust0
- Outcome
- Saturation of the vernalization responsee0
- Value
- 4-e0
- Qualifier
- long- or short-dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Saturation of the vernalization response occurred after a 4- or 8-day vernalization treatment when plants were placed under long- or short-days, respectively.”
t0“Raphanus sativus”
Claim · model-written summary
The short-day vernalization response saturated after eight days.
- Taxon
- Raphanus sativusRaphanus sativust0
- Outcome
- Saturation of the vernalization responsee0
- Value
- 8-daye0
- Qualifier
- long- or short-dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Saturation of the vernalization response occurred after a 4- or 8-day vernalization treatment when plants were placed under long- or short-days, respectively.”
t0“Raphanus sativus”
Claim · model-written summary
Cooling plus 10-3 M GA3 reduced basal leaf number.
- Taxon
- Raphanus sativusRaphanus sativust0
- Treatment
- cooled for 2 or 4 days and were imbibed with 10-3 M GA3e0
- Outcome
- Basal leaf numbere0
- Direction
- decreasede0
- Comparator
- distilled water onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Basal leaf number and days to anthesis decreased when seeds were cooled for 2 or 4 days and were imbibed with 10-3 M GA3 compared to distilled water only.”
t0“Raphanus sativus”
Claim · model-written summary
Cooling plus 10-3 M GA3 reduced days to anthesis.
- Taxon
- Raphanus sativusRaphanus sativust0
- Treatment
- cooled for 2 or 4 days and were imbibed with 10-3 M GA3e0
- Outcome
- days to anthesise0
- Direction
- decreasede0
- Comparator
- distilled water onlye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Basal leaf number and days to anthesis decreased when seeds were cooled for 2 or 4 days and were imbibed with 10-3 M GA3 compared to distilled water only.”
t0“Raphanus sativus”
Claim · model-written summary
Short-day radish has principally an obligate vernalization requirement.
- Taxon
- R. sativusRaphanus sativuse0
- Outcome
- obligate vernalization requiremente0
- Qualifier
- when grown under short-dayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“R. sativus Chinese Jumbo Scarlet has principally an obligate vernalization requirement when grown under short-days.”
Claim · model-written summary
GA3 facilitated flowering only when vernalization was marginal.
- Taxon
- Raphanus sativusRaphanus sativust0
- Treatment
- GA3 applicatione0
- Outcome
- floweringe0
- Direction
- facilitatede0
- Qualifier
- when the length of the vernalization treatment was marginale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA3 application only facilitated flowering when the length of the vernalization treatment was marginal.”
t0“Raphanus sativus”
Claim · model-written summary
The authors support this radish as a short-day vernalization model.
- Taxon
- Raphanus sativusRaphanus sativust0
- Outcome
- use of this plant as a model plant for identifying vernalization responsese0
- Qualifier
- under short-day conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these data support the use of this plant as a model plant for identifying vernalization responses under short-day conditions.”
t0“Raphanus sativus”
The same questions in other papers
Gibberellic acid · growth · Raphanus sativus (radish)Results differ
11 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
9 papers more in this group
See all 13 papers →Gibberellic acid · phenology · Raphanus sativus (radish)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- 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.