Paper · 1963 · American Journal of Botany

SOME EFFECTS OF KINETIN ON THE GROWTH AND FLOWERING OF INTACT GREEN PLANTS

S. H. Wittwer; R. R. Dedolph

11
claims
17
verbatim quotes
32
citations
2
research areas
—
Not open access

Abstract

W ittwer , S. H., and R. R. D edolph . (Michigan State U., E. Lansing.) Some effects of kinotin on the growth and flowering of intact green plants. Amer. Jour. Bot. 50(4): 330–336. Illus. 1963.—Dry matter accumulation of aerial parts, and heights of tomato, cucumber, and pea plants were markedly reduced when kinetin was incorporated into the culture solution root medium in concentrations ranging from 10 –5 to 10 –7 M. Concentrations which suppressed top growth (height, dry weight) generally had lesser effects on root growth and, in some instances, enhanced it. Thus top/root ratios were greatly reduced and approached unity in kinetin‐treated peas and tomatoes. Flowering was inhibited in tomatoes and accelerated in peas. There were marked changes in root morphology, including the formation of pseudonodules. Kinetin had an effect which was opposite to that of gibberellin on internode elongation, root extension, top/root ratios and flowering of dwarf peas. N 6 ‐benzyladenine was more active than kinetin in suppressing the growth of intact green plants. The data show that kinetin can markedly alter the behavior of intact plants when absorbed by the roots from culture solutions in which the concentrations are comparable to those which are biologically active on explants.

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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 11

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Kinetin markedly reduced dry matter accumulation of aerial parts and height of tomato.

Treatment
kinetine0
Outcome
Dry matter accumulation of aerial parts, and heightse0
Direction
markedly reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Dry matter accumulation of aerial parts, and heights of tomato, cucumber, and pea plants were markedly reduced when kinetin was incorporated into the culture solution root medium”

✓ located verbatim in the source · abstract, characters 194–372 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Kinetin markedly reduced dry matter accumulation of aerial parts and height of cucumber.

Taxon
cucumberCucumis sativuse0
Treatment
kinetine0
Outcome
Dry matter accumulation of aerial parts, and heightse0
Direction
markedly reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cucumis sativus
Cucumis sativus · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Dry matter accumulation of aerial parts, and heights of tomato, cucumber, and pea plants were markedly reduced when kinetin was incorporated into the culture solution root medium”

✓ located verbatim in the source · abstract, characters 194–372 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Kinetin markedly reduced dry matter accumulation of aerial parts and height of pea.

Treatment
kinetine0
Outcome
Dry matter accumulation of aerial parts, and heightse0
Direction
markedly reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Dry matter accumulation of aerial parts, and heights of tomato, cucumber, and pea plants were markedly reduced when kinetin was incorporated into the culture solution root medium”

✓ located verbatim in the source · abstract, characters 194–372 · show in text ↑
Intervention effectobservedoriginal resultmixedmeasured

Claim · model-written summary

Concentrations of kinetin that suppressed top growth had lesser effects on root growth and in some instances enhanced it.

Taxon
tomato, cucumber, and pea plantsCucumis sativusLathyrus oleraceusSolanum lycopersicume0
Treatment
kinetine0
Outcome
root growthe1
Direction
lesser effectse1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cucumis sativus
Cucumis sativus · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗
Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗
Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Dry matter accumulation of aerial parts, and heights of tomato, cucumber, and pea plants were markedly reduced when kinetin was incorporated into the culture solution root medium”

✓ located verbatim in the source · abstract, characters 194–372 · show in text ↑
e1

“Concentrations which suppressed top growth (height, dry weight) generally had lesser effects on root growth and, in some instances, enhanced it”

✓ located verbatim in the source · abstract, characters 422–565 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Kinetin greatly reduced top/root ratios, which approached unity, in peas and tomatoes.

Treatment
kinetine0
Outcome
top/root ratiose2
Direction
greatly reducede2
Qualifier
approached unitye2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗
Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Dry matter accumulation of aerial parts, and heights of tomato, cucumber, and pea plants were markedly reduced when kinetin was incorporated into the culture solution root medium”

✓ located verbatim in the source · abstract, characters 194–372 · show in text ↑
e2

“top/root ratios were greatly reduced and approached unity”

✓ located verbatim in the source · abstract, characters 572–629 · show in text ↑
e3

“peas and tomatoes”

✓ located verbatim in the source · abstract, characters 649–666 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Kinetin inhibited flowering in tomatoes.

Treatment
kinetine0
Outcome
Floweringe4
Direction
inhibitede4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Dry matter accumulation of aerial parts, and heights of tomato, cucumber, and pea plants were markedly reduced when kinetin was incorporated into the culture solution root medium”

✓ located verbatim in the source · abstract, characters 194–372 · show in text ↑
e4

“Flowering was inhibited in tomatoes and accelerated in peas”

✓ located verbatim in the source · abstract, characters 668–727 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Kinetin accelerated flowering in peas.

Treatment
kinetine0
Outcome
Floweringe4
Direction
acceleratede4

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Dry matter accumulation of aerial parts, and heights of tomato, cucumber, and pea plants were markedly reduced when kinetin was incorporated into the culture solution root medium”

✓ located verbatim in the source · abstract, characters 194–372 · show in text ↑
e4

“Flowering was inhibited in tomatoes and accelerated in peas”

✓ located verbatim in the source · abstract, characters 668–727 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Kinetin caused marked changes in root morphology, including pseudonodule formation, in tomato, cucumber and pea plants.

Taxon
tomato, cucumber, and pea plantsCucumis sativusLathyrus oleraceusSolanum lycopersicume0
Treatment
kinetine0
Outcome
root morphologye5
Direction
marked changese5
Qualifier
the formation of pseudonodulese5

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Cucumis sativus
Cucumis sativus · TaxonH. Zell · CC BY-SA 3.0 · Wikimedia Commons ↗
Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗
Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Dry matter accumulation of aerial parts, and heights of tomato, cucumber, and pea plants were markedly reduced when kinetin was incorporated into the culture solution root medium”

✓ located verbatim in the source · abstract, characters 194–372 · show in text ↑
e5

“There were marked changes in root morphology, including the formation of pseudonodules”

✓ located verbatim in the source · abstract, characters 729–815 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Kinetin had an effect opposite to that of gibberellin on internode elongation, root extension and top/root ratios of dwarf peas.

Taxon
dwarf peasLathyrus oleraceuse6
Treatment
Kinetine6
Outcome
internode elongation, root extension, top/root ratiose6
Direction
oppositee6
Comparator
gibberelline6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e6

“Kinetin had an effect which was opposite to that of gibberellin on internode elongation, root extension, top/root ratios and flowering of dwarf peas”

✓ located verbatim in the source · abstract, characters 817–965 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Kinetin had an effect opposite to that of gibberellin on flowering of dwarf peas.

Taxon
dwarf peasLathyrus oleraceuse6
Treatment
Kinetine6
Outcome
floweringe6
Direction
oppositee6
Comparator
gibberelline6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e6

“Kinetin had an effect which was opposite to that of gibberellin on internode elongation, root extension, top/root ratios and flowering of dwarf peas”

✓ located verbatim in the source · abstract, characters 817–965 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

N 6 ‐benzyladenine was more active than kinetin in suppressing the growth of intact green plants.

Taxon
intact green plantse7
Treatment
N 6 ‐benzyladeninee7
Outcome
growthe7
Direction
more activee7
Comparator
kinetine7

Verbatim

e7

“N 6 ‐benzyladenine was more active than kinetin in suppressing the growth of intact green plants”

✓ located verbatim in the source · abstract, characters 967–1063 · show in text ↑

kinetin · phenology · Solanum lycopersicum (tomato)Results differ

2 papers: 1 positive, 1 negative or no effect

1 in the opposite direction

  1. positive
See all 2 papers →

kinetin · yield · Solanum lycopersicum (tomato)Results differ

8 papers: 4 positive, 4 negative or no effect

3 papers in the same direction as this paper · 4 in the opposite direction

  1. positive
  2. positive
  3. positive

4 papers more in this group

See all 8 papers →

kinetin · yield · Cucumis sativus (cucumber)Positive and negative results

4 papers: 1 positive, 3 negative or no effect

2 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. negative
  3. no effect
See all 4 papers →

kinetin · yield · Lathyrus oleraceus (pea)Results agree

3 papers: 0 positive, 3 negative or no effect

2 papers in the same direction as this paper

  1. no effect
  2. negative
See all 3 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.