Abstract
Gibberellic acid (GA3), kinetin, and indol-3yl-acetic acid (IAA) contained in lanolin were applied in various combinations and concentrations to decapitated stems and petioles and to buds of Phaseolus vulgaris L. GA3 applied alone usually promoted growth of main stems and laterals but this was by no means consistent and occasionally it acted in the opposite way. IAA applied alone reduced lateral bud extension slightly, but not consistently; however, when applied with GA3 or GA3 plus kinetin, it often markedly inhibited the promotion caused by these compounds. On occasions, however, GA3 and IAA acted synergistically to promote and sometimes to inhibit lateral shoot growth. Kinetin alone showed few significant effects on lateral shoot growth but applied with GA3 it often dramatically increased GA3-induced growth of main stems and laterals. The diversity of these results, which parallels that found in the literature, was shown to be partly dependent on the point of hormone application and age of the plant or bud, on concentration of hormone and on light intensity or nutrition. However, no meaningful relationships were found and it is concluded that growth of laterals and main stems is dependent on a hormone balance which can be critically modified by a wide range of internal and external factors the nature of which is still to be determined.
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Claims 10
Claim · model-written summary
GA3 alone usually promoted main stem and lateral growth, though inconsistently and sometimes oppositely.
- Taxon
- Phaseolus vulgaris L.
Phaseolus vulgarist0 - Treatment
- GA3e0
- Outcome
- growth of main stems and lateralse0
- Direction
- promotede0
- Qualifier
- by no means consistente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA3 applied alone usually promoted growth of main stems and laterals but this was by no means consistent and occasionally it acted in the opposite way.”
t0“Phaseolus vulgaris L.”
Claim · model-written summary
IAA alone slightly reduced lateral bud extension, inconsistently.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- IAAe0
- Outcome
- lateral bud extensione0
- Direction
- reducede0
- Qualifier
- not consistentlye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“IAA applied alone reduced lateral bud extension slightly, but not consistently”
t0“Phaseolus vulgaris L.”
Claim · model-written summary
IAA with GA3 or GA3 plus kinetin often markedly inhibited their promotion of lateral bud extension.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- GA3 or GA3 plus kinetine0
- Outcome
- promotione0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“when applied with GA3 or GA3 plus kinetin, it often markedly inhibited the promotion caused by these compounds”
t0“Phaseolus vulgaris L.”
Claim · model-written summary
GA3 and IAA sometimes acted synergistically to promote lateral shoot growth.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- GA3 and IAAe0
- Outcome
- lateral shoot growthe0
- Direction
- promotee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA3 and IAA acted synergistically to promote and sometimes to inhibit lateral shoot growth”
t0“Phaseolus vulgaris L.”
Claim · model-written summary
GA3 and IAA sometimes acted synergistically to inhibit lateral shoot growth.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- GA3 and IAAe0
- Outcome
- lateral shoot growthe0
- Direction
- inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“GA3 and IAA acted synergistically to promote and sometimes to inhibit lateral shoot growth”
t0“Phaseolus vulgaris L.”
Claim · model-written summary
Kinetin alone had few significant effects on lateral shoot growth.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- Kinetine0
- Outcome
- lateral shoot growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Kinetin alone showed few significant effects on lateral shoot growth”
t0“Phaseolus vulgaris L.”
Claim · model-written summary
Kinetin with GA3 often increased GA3-induced growth of main stems and laterals.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist1
- Treatment
- Kinetint0
- Outcome
- growth of main stems and lateralse0
- Direction
- increasede0
- Comparator
- GA3-inducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“applied with GA3 it often dramatically increased GA3-induced growth of main stems and laterals”
t0“Kinetin alone showed few significant effects on lateral shoot growth but applied with GA3 it often dramatically increased GA3-induced growth of main stems and laterals”
t1“Phaseolus vulgaris L.”
Claim · model-written summary
Response diversity partly depended on hormone application point, plant or bud age, concentration, light intensity, and nutrition.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Treatment
- point of hormone applicatione0
- Outcome
- diversity of these resultse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The diversity of these results, which parallels that found in the literature, was shown to be partly dependent on the point of hormone application and age of the plant or bud, on concentration of hormone and on light intensity or nutrition.”
t0“Phaseolus vulgaris L.”
Claim · model-written summary
No meaningful relationships among the tested growth modifiers were found.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Outcome
- meaningful relationshipse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“However, no meaningful relationships were found”
t0“Phaseolus vulgaris L.”
Claim · model-written summary
The authors conclude that lateral and main stem growth depends on a hormone balance modified by internal and external factors.
- Taxon
- Phaseolus vulgaris L.Phaseolus vulgarist0
- Outcome
- growth of laterals and main stemse0
- Qualifier
- hormone balancee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“growth of laterals and main stems is dependent on a hormone balance which can be critically modified by a wide range of internal and external factors”
t0“Phaseolus vulgaris L.”
The same questions in other papers
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- negative
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5 papers in the same direction as this paper · 3 in the opposite direction
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- negative
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See all 9 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.