Paper · 1972 · Annals of Botany

Growth Responses of Tomato Plants in Non-aerated Water Culture to Foliar Sprays of Gibberellic Acid and Benzyladenine

I. W. SELMAN; S. SANDANAM

14
claims
37
verbatim quotes
28
citations
1
research areas
—
Not open access

Abstract

Tomato plants were grown to the five-six leaf stage in aerated water culture and aeration then discontinued. Foliar sprays of gibberellic acid (G), N6 benzyladenine (B), and ammonium nitrate (N) were applied for periods up to 7 days and the plants harvested on the eighth day. A mixture of 2·5 ppm G, 5·0 ppm B, and 280 ppm N increased growth of the whole plant and this was attributable almost entirely to G and B. In the leaf, both increased water content (B>G) and dry weight. G, but not B, increased leaf area; B, but not G, increased fresh weight leaf/unit area. In the stem, G increased dry weight and height; B reduced height but increased diameter and water content. Inclusion of O·I ppm indol-3yl-acetic acid in the mixture was ineffective. The percentage increase in growth of non-aerated plants with G+B+N was greater with non-acrated than with aerated plants for weight of whole plant and leaf area, but not for stem height. Growth of non-aerated plants could not be increased by increasing the volume of the nutrient solution, by ‘aerating’ with nitrogen, or by applying minerals in foliar sprays.

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 14

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

G+B+N mixture increased whole plant growth.

Treatment
2·5 ppm G, 5·0 ppm B, and 280 ppm Ne0
Outcome
growth of the whole plante0
Direction
increasede0

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

“A mixture of 2·5 ppm G, 5·0 ppm B, and 280 ppm N increased growth of the whole plant”

✓ located verbatim in the source · abstract, characters 277–361 · show in text ↑
e1

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

G and B each increased leaf water content and dry weight.

Organ / stage
leafe0
Treatment
gibberellic acid (G), N6 benzyladenine (B)e1
Outcome
water content (B>G) and dry weighte0
Direction
increasede0

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

“In the leaf, both increased water content (B>G) and dry weight”

✓ located verbatim in the source · abstract, characters 416–478 · show in text ↑
e1

“gibberellic acid (G), N6 benzyladenine (B)”

✓ located verbatim in the source · abstract, characters 126–168 · show in text ↑
e2

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

G increased leaf area.

Treatment
gibberellic acid (G)e1
Outcome
leaf areae0
Direction
increasede0

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

“G, but not B, increased leaf area”

✓ located verbatim in the source · abstract, characters 480–513 · show in text ↑
e1

“gibberellic acid (G)”

✓ located verbatim in the source · abstract, characters 126–146 · show in text ↑
e2

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

B increased fresh leaf weight per area.

Treatment
N6 benzyladenine (B)e1
Outcome
fresh weight leaf/unit areae0
Direction
increasede0

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

“B, but not G, increased fresh weight leaf/unit area”

✓ located verbatim in the source · abstract, characters 515–566 · show in text ↑
e1

“N6 benzyladenine (B)”

✓ located verbatim in the source · abstract, characters 148–168 · show in text ↑
e2

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

G increased stem dry weight and height.

Organ / stage
steme0
Treatment
gibberellic acid (G)e1
Outcome
dry weight and heighte0
Direction
increasede0

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

“In the stem, G increased dry weight and height”

✓ located verbatim in the source · abstract, characters 568–614 · show in text ↑
e1

“gibberellic acid (G)”

✓ located verbatim in the source · abstract, characters 126–146 · show in text ↑
e2

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

B reduced stem height.

Organ / stage
steme3
Treatment
N6 benzyladenine (B)e1
Outcome
heighte0
Direction
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

“B reduced height but increased diameter and water content”

✓ located verbatim in the source · abstract, characters 616–673 · show in text ↑
e1

“N6 benzyladenine (B)”

✓ located verbatim in the source · abstract, characters 148–168 · show in text ↑
e2

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
e3

“In the stem”

✓ located verbatim in the source · abstract, characters 568–579 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

B increased stem diameter and water content.

Organ / stage
steme3
Treatment
N6 benzyladenine (B)e1
Outcome
diameter and water contente0
Direction
increasede0

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

“B reduced height but increased diameter and water content”

✓ located verbatim in the source · abstract, characters 616–673 · show in text ↑
e1

“N6 benzyladenine (B)”

✓ located verbatim in the source · abstract, characters 148–168 · show in text ↑
e2

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
e3

“In the stem”

✓ located verbatim in the source · abstract, characters 568–579 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Indol-3yl-acetic acid in the mixture was ineffective.

Treatment
O·I ppm indol-3yl-acetic acide0
Outcome
ineffectivee0
Direction
ineffectivee0
Comparator
the mixturee0

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

“Inclusion of O·I ppm indol-3yl-acetic acid in the mixture was ineffective”

✓ located verbatim in the source · abstract, characters 675–748 · show in text ↑
e1

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

G+B+N increased whole plant weight more under non-aerated than aerated conditions.

Treatment
G+B+Ne0
Outcome
weight of whole plante0
Direction
greatere0
Comparator
aerated plantse0

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

“percentage increase in growth of non-aerated plants with G+B+N was greater with non-acrated than with aerated plants for weight of whole plant”

✓ located verbatim in the source · abstract, characters 754–896 · show in text ↑
e1

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

G+B+N increased leaf area more under non-aerated than aerated conditions.

Treatment
G+B+Ne0
Outcome
leaf areae0
Direction
greatere0
Comparator
aerated plantse0

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

“percentage increase in growth of non-aerated plants with G+B+N was greater with non-acrated than with aerated plants for weight of whole plant and leaf area”

✓ located verbatim in the source · abstract, characters 754–910 · show in text ↑
e1

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

The G+B+N increase in stem height was not greater under non-aerated conditions.

Treatment
G+B+Ne1
Outcome
stem heighte0
Direction
note0
Comparator
aerated plantse1

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

“but not for stem height”

✓ located verbatim in the source · abstract, characters 912–935 · show in text ↑
e1

“percentage increase in growth of non-aerated plants with G+B+N was greater with non-acrated than with aerated plants”

✓ located verbatim in the source · abstract, characters 754–870 · show in text ↑
e2

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Increasing nutrient solution volume did not increase growth of non-aerated tomato.

Treatment
increasing the volume of the nutrient solutione0
Outcome
Growth of non-aerated plantse0
Direction
could not be increasede0

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

“Growth of non-aerated plants could not be increased by increasing the volume of the nutrient solution”

✓ located verbatim in the source · abstract, characters 937–1038 · show in text ↑
e1

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Nitrogen aeration did not increase growth of non-aerated tomato.

Treatment
‘aerating’ with nitrogene0
Outcome
Growth of non-aerated plantse0
Direction
could not be increasede0

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

“Growth of non-aerated plants could not be increased by increasing the volume of the nutrient solution, by ‘aerating’ with nitrogen”

✓ located verbatim in the source · abstract, characters 937–1067 · show in text ↑
e1

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Foliar mineral sprays did not increase growth of non-aerated tomato.

Treatment
applying minerals in foliar sprayse0
Outcome
Growth of non-aerated plantse0
Direction
could not be increasede0

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

“Growth of non-aerated plants could not be increased by increasing the volume of the nutrient solution, by ‘aerating’ with nitrogen, or by applying minerals in foliar sprays”

✓ located verbatim in the source · abstract, characters 937–1109 · show in text ↑
e1

“Tomato plants”

✓ located verbatim in the source · abstract, characters 0–13 · show in text ↑

N-benzyladenine · growth · Solanum lycopersicum (tomato)Results differ

42 papers: 35 positive, 7 negative or no effect

34 papers in the same direction as this paper · 7 in the opposite direction

  1. positive
  2. negative
  3. negative

38 papers more in this group

See all 42 papers →

Gibberellic acid · growth · Solanum lycopersicum (tomato)Results differ

87 papers: 80 positive, 7 negative or no effect

79 papers in the same direction as this paper · 7 in the opposite direction

  1. positive
  2. positive
  3. negative

83 papers more in this group

See all 87 papers →

nitrogen · growth · Solanum lycopersicum (tomato)Positive and negative results

153 papers: 108 positive, 45 negative or no effect

44 papers in the same direction as this paper · 108 in the opposite direction

  1. positive
  2. positive
  3. positive

149 papers more in this group

See all 153 papers →

application · growth · Solanum lycopersicum (tomato)Positive and negative results

253 papers: 225 positive, 28 negative or no effect

27 papers in the same direction as this paper · 225 in the opposite direction

  1. positive
  2. positive
  3. positive

249 papers more in this group

See all 253 papers →

fertilization · growth · Solanum lycopersicum (tomato)Positive and negative results

668 papers: 567 positive, 101 negative or no effect

100 papers in the same direction as this paper · 567 in the opposite direction

  1. negative
  2. positive
  3. positive

664 papers more in this group

See all 668 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.