Abstract
Abstract. Mature wheat ( Triticum aestivum L.) grain often possesses high‐temperature dormancy which restricts the grain from germinating at warm temperatures (25–30°C). Isolated embryos from such grain exhibited little high‐temperature dormancy when germinated in water. Dormancy was restored by the application of abscisic acid (ABA) to the embryos. The ability of ABA to block germination in isolated embryos was enhanced significantly by elevating the germination temperature. ABA was 100 times more effective in reducing embryonic germination at 30°C than at 15°C. These temperature effects on embryonic response to ABA are a useful system for studying the mechanism of ABA action in seed dormancy.
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Claims 4
Claim · model-written summary
Isolated embryos exhibited little high temperature dormancy in water.
- Taxon
- wheat
Triticum aestivumt0 - Organ / stage
- embryose0
- Outcome
- little high‐temperature dormancye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Isolated embryos from such grain exhibited little high‐temperature dormancy when germinated in water”
t0“wheat”
Claim · model-written summary
ABA application restored dormancy in isolated embryos.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- embryose0
- Treatment
- application of abscisic acid (ABA)e0
- Outcome
- Dormancye0
- Direction
- restorede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Dormancy was restored by the application of abscisic acid (ABA) to the embryos”
t0“wheat”
Claim · model-written summary
Higher germination temperature significantly enhanced ABA inhibition of embryo germination.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- isolated embryose0
- Treatment
- elevating the germination temperaturee0
- Outcome
- ability of ABA to block germinatione0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ability of ABA to block germination in isolated embryos was enhanced significantly by elevating the germination temperature”
t0“wheat”
Claim · model-written summary
ABA reduced embryonic germination 100 times more effectively at 30°C than 15°C.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- ABAe0
- Outcome
- embryonic germinatione0
- Direction
- reducinge0
- Value
- 100 timese0
- Comparator
- at 15°Ce0
- Setting
- 30°Ce0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ABA was 100 times more effective in reducing embryonic germination at 30°C than at 15°C”
t0“wheat”
The same questions in other papers
(+)-abscisic acid · growth · Triticum aestivum (wheat)Results differ
28 papers in the same direction as this paper · 20 in the opposite direction
- negative
- negative
- negative
45 papers more in this group
See all 49 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.