Abstract
Daily application of abscisic acid (ABA) to growing wheat plants, although initially inhibiting growth, resulted, after a short lag, in an increase in the number of leaves and tillers. This may have been due to reduced apical dominance. At 84 days the total dry weight and area of all leaves produced up to this time was less for the plants treated with ABA than for the control plants. However, the area of green, living leaves and the dry weight were not significantly affected by the ABA treatment. Further effects of the daily ABA treatment were the inhibition of transpiration, especially on the abaxial surface, the reduction of leaf size, the promotion of flowering and the stimulation of trichome formation on the leaf surfaces. ABA did not promote leaf senescence in whole plants and actually increased leaf longevity.
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Claims 11
Claim · model-written summary
Daily ABA initially inhibited wheat growth.
- Taxon
- Wheat
Triticum aestivumt0 - Treatment
- abscisic acid (ABA)e0
- Outcome
- growthe0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat (Triticum aestivum L)”
e0“Daily application of abscisic acid (ABA) to growing wheat plants, although initially inhibiting growth”
Claim · model-written summary
After a lag, daily ABA increased the number of wheat leaves and tillers.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- number of leaves and tillerse0
- Direction
- increasee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat (Triticum aestivum L)”
e0“resulted, after a short lag, in an increase in the number of leaves and tillers.”
Claim · model-written summary
ABA may have increased leaves and tillers by reducing apical dominance.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- reduced apical dominancee0
- Qualifier
- reduced apical dominancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat (Triticum aestivum L)”
e0“This may have been due to reduced apical dominance.”
Claim · model-written summary
At 84 days, ABA-treated plants had lower total dry weight and leaf area than controls.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- ABAe0
- Outcome
- total dry weight and area of all leavese0
- Direction
- lesse0
- Qualifier
- At 84 dayse0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat (Triticum aestivum L)”
e0“At 84 days the total dry weight and area of all leaves produced up to this time was less for the plants treated with ABA than for the control plants.”
Claim · model-written summary
ABA did not significantly affect area of living green leaves or dry weight.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- ABA treatmente0
- Outcome
- area of green, living leaves and the dry weighte0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat (Triticum aestivum L)”
e0“the area of green, living leaves and the dry weight were not significantly affected by the ABA treatment.”
Claim · model-written summary
Daily ABA inhibited transpiration, especially on the abaxial leaf surface.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- abaxial surfacee0
- Treatment
- daily ABA treatmente0
- Outcome
- transpiratione0
- Direction
- inhibitione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat (Triticum aestivum L)”
e0“the daily ABA treatment were the inhibition of transpiration, especially on the abaxial surface”
Claim · model-written summary
Daily ABA reduced wheat leaf size.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- leaf sizee0
- Direction
- reductione0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat (Triticum aestivum L)”
e0“the reduction of leaf size”
Claim · model-written summary
Daily ABA promoted flowering.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- floweringe0
- Direction
- promotione0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat (Triticum aestivum L)”
e0“the promotion of flowering”
Claim · model-written summary
Daily ABA stimulated trichome formation on wheat leaves.
- Taxon
- WheatTriticum aestivumt0
- Outcome
- trichome formatione0
- Direction
- stimulatione0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat (Triticum aestivum L)”
e0“the stimulation of trichome formation on the leaf surfaces.”
Claim · model-written summary
ABA did not promote leaf senescence in whole wheat plants.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- ABAe0
- Outcome
- leaf senescencee0
- Direction
- did not promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat (Triticum aestivum L)”
e0“ABA did not promote leaf senescence in whole plants”
Claim · model-written summary
ABA increased wheat leaf longevity.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- ABAe0
- Outcome
- leaf longevitye0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Wheat (Triticum aestivum L)”
e0“ABA did not promote leaf senescence in whole plants and actually increased leaf longevity.”
The same questions in other papers
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(+)-abscisic acid · physiology: gas exchange · Triticum aestivum (wheat)Results differ
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19 papers in the same direction as this paper · 29 in the opposite direction
- positive
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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.