Abstract
Germinating 'Poinsett 76' cucumber (Cucumis sativus) seeds are chilling sensitive, and subsequent radicle elongation is inhibited by exposure to nonfreezing temperatures below 10 degrees C. Reorienting germinated seeds with 5-mm-long radicles from a vertical to a horizontal position induced gravitropic curvature within 2 hours at 10 to 25 degrees C without significantly affecting the rate of radicle elongation. However, neither elongation nor curvature occurred in similar seeds held at 2.5 or 5 degrees C. Chilling seeds with 5-mm-long radicles at 2.5 degrees C for 18 hours significantly reduced the subsequent rate of radicle elongation at 25 degrees C by 47% compared with nonchilled control, while gravitropic curvature was reduced by only 34%. After 36 hours of recovery at 25 degrees C, the difference was even more pronounced; elongation was reduced by 26% while curvature was reduced by only 6%. Clearly, gravitropic curvature was less chilling sensitive than radicle elongation, despite the fact that differential elongation of cells in the radicle are needed to produce curvature. Exposing seeds with 5-mm-long radicles to a heat shock of 45 degrees C for 4 to 10 minutes significantly diminished the chilling-induced reduction in radicle elongation and gravitropic curvature.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 9
Claim · model-written summary
Temperatures below 10 degrees C inhibited subsequent cucumber radicle elongation.
- Taxon
- Cucumber
Cucumis sativust0 - Treatment
- nonfreezing temperatures below 10 degrees Ce0
- Outcome
- radicle elongatione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“subsequent radicle elongation is inhibited by exposure to nonfreezing temperatures below 10 degrees C”
t0“Cucumber (Cucumis sativus L.) Radicles”
Claim · model-written summary
Reorienting radicles horizontally induced curvature within two hours at 10 to 25 degrees C.
- Taxon
- CucumberCucumis sativust0
- Treatment
- Reorienting germinated seeds with 5-mm-long radicles from a vertical to a horizontal positione0
- Outcome
- gravitropic curvaturee0
- Direction
- inducede0
- Value
- within 2 hourse0
- Qualifier
- 10 to 25 degrees Ce0
- Comparator
- verticale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reorienting germinated seeds with 5-mm-long radicles from a vertical to a horizontal position induced gravitropic curvature within 2 hours at 10 to 25 degrees C”
t0“Cucumber”
Claim · model-written summary
Reorientation did not significantly affect radicle elongation at 10 to 25 degrees C.
- Taxon
- CucumberCucumis sativust0
- Treatment
- Reorienting germinated seeds with 5-mm-long radicles from a vertical to a horizontal positione1
- Outcome
- rate of radicle elongatione0
- Direction
- without significantly affectinge0
- Comparator
- verticale1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“without significantly affecting the rate of radicle elongation”
e1“Reorienting germinated seeds with 5-mm-long radicles from a vertical to a horizontal position induced gravitropic curvature within 2 hours at 10 to 25 degrees C”
t0“Cucumber”
Claim · model-written summary
At 2.5 or 5 degrees C, similar seeds showed neither elongation nor curvature.
- Taxon
- CucumberCucumis sativust0
- Outcome
- elongation nor curvaturee0
- Direction
- neithere0
- Setting
- 2.5 or 5 degrees Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“neither elongation nor curvature occurred in similar seeds held at 2.5 or 5 degrees C”
t0“Cucumber”
Claim · model-written summary
Chilling at 2.5 degrees C for 18 hours reduced subsequent radicle elongation at 25 degrees C by 47%.
- Taxon
- CucumberCucumis sativust0
- Treatment
- Chilling seeds with 5-mm-long radicles at 2.5 degrees C for 18 hourse0
- Outcome
- rate of radicle elongatione0
- Direction
- reducede0
- Value
- 47%e0
- Comparator
- nonchilled controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chilling seeds with 5-mm-long radicles at 2.5 degrees C for 18 hours significantly reduced the subsequent rate of radicle elongation at 25 degrees C by 47% compared with nonchilled control”
t0“Cucumber”
Claim · model-written summary
The same chilling reduced gravitropic curvature by 34%.
- Taxon
- CucumberCucumis sativust0
- Treatment
- Chilling seeds with 5-mm-long radicles at 2.5 degrees C for 18 hourse1
- Outcome
- gravitropic curvaturee0
- Direction
- reducede0
- Value
- 34%e0
- Comparator
- nonchilled controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while gravitropic curvature was reduced by only 34%”
e1“Chilling seeds with 5-mm-long radicles at 2.5 degrees C for 18 hours significantly reduced the subsequent rate of radicle elongation at 25 degrees C by 47% compared with nonchilled control”
t0“Cucumber”
Claim · model-written summary
After 36 hours of recovery, chilled seeds had 26% less radicle elongation.
- Taxon
- CucumberCucumis sativust0
- Treatment
- 36 hours of recovery at 25 degrees Ce0
- Outcome
- elongatione0
- Direction
- reducede0
- Value
- 26%e0
- Comparator
- nonchilled controle1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“After 36 hours of recovery at 25 degrees C, the difference was even more pronounced; elongation was reduced by 26%”
e1“compared with nonchilled control”
t0“Cucumber”
Claim · model-written summary
After 36 hours of recovery, chilled seeds had 6% less curvature.
- Taxon
- CucumberCucumis sativust0
- Treatment
- 36 hours of recovery at 25 degrees Ce1
- Outcome
- curvaturee0
- Direction
- reducede0
- Value
- 6%e0
- Comparator
- nonchilled controle2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“while curvature was reduced by only 6%”
e1“After 36 hours of recovery at 25 degrees C”
e2“compared with nonchilled control”
t0“Cucumber”
Claim · model-written summary
Heat shock diminished chilling-induced loss of radicle elongation and gravitropic curvature.
- Taxon
- CucumberCucumis sativust0
- Treatment
- heat shock of 45 degrees C for 4 to 10 minutese0
- Outcome
- radicle elongation and gravitropic curvaturee0
- Direction
- diminishede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exposing seeds with 5-mm-long radicles to a heat shock of 45 degrees C for 4 to 10 minutes significantly diminished the chilling-induced reduction in radicle elongation and gravitropic curvature.”
t0“Cucumber”
The same questions in other papers
heat · growth · Cucumis sativus (cucumber)Results differ
15 papers in the same direction as this paper · 9 in the opposite direction
- negative
- negative
- no effect
21 papers more in this group
See all 25 papers →stage · growth · Cucumis sativus (cucumber)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- negative
- no effect
cold · growth · Cucumis sativus (cucumber)Positive and negative results
26 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
28 papers more in this group
See all 32 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.