Abstract
S ummary Benzyladenine (BA) and gibberellic acid (GA) were applied together as a foliar spray to young tomato plants growing in pots of well drained soil, waterlogged soil or in nutrient solution supplied with air (aerobic), nitrogen gas (anaerobic), or ethylene (20 or 100 ul 1 −1 in air) for up to 6 days. BA and GA (10 fig ml −1 ) lessened the inhibitory effects of waterlogging on stem elongation, transpiration and the increase of fresh and dry wt of the shoots. In absolute terms the promotion of shoot growth by BA and GA was greater in plants growing in non‐waterlogged than in waterlogged soil. Root growth was inhibited by BA and GA. The effect of waterlogging in promoting adventitious rooting at the base of the stem was reduced by BA and GA. Epinastic curvature by petioles was promoted by growing plants in waterlogged soil or anaerobic solution culture in association with an increase in the production of ethylene by the petioles. Applications of BA and of GA inhibited this epinastic growth but they did not lower the rate of ethylene production. However BA and GA diminished the effectiveness of ethylene as a stimulator of epinastic curvature. The application of ethylene to the roots inhibited the accumulation of dry wt by the root system and decreased slightly the growth promoting effects of BA and GA in the shoots. The inhibiting effect of waterlogging the root system on stem elongation could be offset if adventitious roots maintained in well aerated conditions were previously induced on the main stem above the primary roots. Epinastic curvature and ethylene production were not decreased by the presence of an adventitious root system. The extent to which applications of BA and GA may reflect the activity of endogenous hormones produced by aerobic roots is discussed.
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 15
Claim · model-written summary
BA and GA lessened waterlogging inhibition of stem elongation, transpiration, and shoot fresh and dry weight.
- Taxon
- TOMATO PLANTS
Solanum lycopersicumt0 - Treatment
- BA and GA (10 fig ml −1 )e0
- Outcome
- stem elongation, transpiration and the increase of fresh and dry wt of the shootse0
- Direction
- lessenede0
- Comparator
- waterlogginge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BA and GA (10 fig ml −1 ) lessened the inhibitory effects of waterlogging on stem elongation, transpiration and the increase of fresh and dry wt of the shoots.”
t0“TOMATO PLANTS”
Claim · model-written summary
BA and GA promoted shoot growth more in non-waterlogged than waterlogged soil.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- BA and GAe0
- Outcome
- shoot growthe0
- Direction
- greatere0
- Comparator
- waterlogged soile0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In absolute terms the promotion of shoot growth by BA and GA was greater in plants growing in non‐waterlogged than in waterlogged soil.”
t0“TOMATO PLANTS”
Claim · model-written summary
BA and GA inhibited root growth.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- BA and GAe0
- Outcome
- Root growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Root growth was inhibited by BA and GA.”
t0“TOMATO PLANTS”
Claim · model-written summary
BA and GA reduced waterlogging-induced adventitious rooting.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- BA and GAe0
- Outcome
- adventitious rooting at the base of the steme0
- Direction
- reducede0
- Comparator
- waterlogginge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The effect of waterlogging in promoting adventitious rooting at the base of the stem was reduced by BA and GA.”
t0“TOMATO PLANTS”
Claim · model-written summary
Waterlogged soil promoted petiole epinasty.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- waterlogged soile0
- Outcome
- Epinastic curvature by petiolese0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Epinastic curvature by petioles was promoted by growing plants in waterlogged soil or anaerobic solution culture in association with an increase in the production of ethylene by the petioles.”
t0“TOMATO PLANTS”
Claim · model-written summary
Anaerobic solution culture promoted petiole epinasty.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- anaerobic solution culturee0
- Outcome
- Epinastic curvature by petiolese0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Epinastic curvature by petioles was promoted by growing plants in waterlogged soil or anaerobic solution culture in association with an increase in the production of ethylene by the petioles.”
t0“TOMATO PLANTS”
Claim · model-written summary
Petiole ethylene production increased with epinasty in waterlogged or anaerobic plants.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Organ / stage
- petiolese0
- Outcome
- production of ethylenee0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in association with an increase in the production of ethylene by the petioles.”
t0“TOMATO PLANTS”
Claim · model-written summary
BA and GA inhibited epinastic growth.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- BA and of GAe0
- Outcome
- epinastic growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applications of BA and of GA inhibited this epinastic growth but they did not lower the rate of ethylene production.”
t0“TOMATO PLANTS”
Claim · model-written summary
BA and GA did not lower ethylene production.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- BA and of GAe0
- Outcome
- rate of ethylene productione0
- Direction
- did not lowere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Applications of BA and of GA inhibited this epinastic growth but they did not lower the rate of ethylene production.”
t0“TOMATO PLANTS”
Claim · model-written summary
BA and GA diminished ethylene stimulation of epinasty.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- BA and GAe0
- Outcome
- effectiveness of ethylene as a stimulator of epinastic curvaturee0
- Direction
- diminishede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However BA and GA diminished the effectiveness of ethylene as a stimulator of epinastic curvature.”
t0“TOMATO PLANTS”
Claim · model-written summary
Root-applied ethylene inhibited root dry-weight accumulation.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- application of ethylene to the rootse0
- Outcome
- accumulation of dry wt by the root systeme0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of ethylene to the roots inhibited the accumulation of dry wt by the root system and decreased slightly the growth promoting effects of BA and GA in the shoots.”
t0“TOMATO PLANTS”
Claim · model-written summary
Root-applied ethylene slightly decreased BA and GA shoot-growth promotion.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- application of ethylene to the rootse0
- Outcome
- growth promoting effects of BA and GA in the shootse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of ethylene to the roots inhibited the accumulation of dry wt by the root system and decreased slightly the growth promoting effects of BA and GA in the shoots.”
t0“TOMATO PLANTS”
Claim · model-written summary
Aerated adventitious roots offset waterlogging inhibition of stem elongation.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- adventitious roots maintained in well aerated conditionse0
- Outcome
- stem elongatione0
- Direction
- offsete0
- Comparator
- waterlogging the root systeme0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The inhibiting effect of waterlogging the root system on stem elongation could be offset if adventitious roots maintained in well aerated conditions were previously induced on the main stem above the primary roots.”
t0“TOMATO PLANTS”
Claim · model-written summary
Adventitious roots did not decrease epinasty.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- presence of an adventitious root systeme0
- Outcome
- Epinastic curvaturee0
- Direction
- not decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Epinastic curvature and ethylene production were not decreased by the presence of an adventitious root system.”
t0“TOMATO PLANTS”
Claim · model-written summary
Adventitious roots did not decrease ethylene production.
- Taxon
- TOMATO PLANTSSolanum lycopersicumt0
- Treatment
- presence of an adventitious root systeme0
- Outcome
- ethylene productione0
- Direction
- not decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Epinastic curvature and ethylene production were not decreased by the presence of an adventitious root system.”
t0“TOMATO PLANTS”
The same questions in other papers
ethene · growth · Solanum lycopersicum (tomato)Results differ
11 papers in the same direction as this paper · 10 in the opposite direction
- positive
- positive
- positive
18 papers more in this group
See all 22 papers →N-benzyladenine · growth · Solanum lycopersicum (tomato)Results differ
34 papers in the same direction as this paper · 7 in the opposite direction
- positive
- negative
- negative
38 papers more in this group
See all 42 papers →Gibberellic acid · growth · Solanum lycopersicum (tomato)Results differ
79 papers in the same direction as this paper · 7 in the opposite direction
- positive
- negative
- no effect
83 papers more in this group
See all 87 papers →N-benzyladenine · physiology: gas exchange · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- no effect
N-benzyladenine · physiology: hormones · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- positive
Gibberellic acid · physiology: hormones · Solanum lycopersicum (tomato)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
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.