Paper · 1968 · Physiologia Plantarum

Reversal of (±) ‐Abscisin II Induced Inhibition of Lettuce Seed Germination and Seedling Growth by Kinetin

N. Sankhla; D. Sankhla

5
claims
10
verbatim quotes
69
citations
1
research areas
—
Not open access

Abstract

Abstract Observations have been made on the effect of synthetic, (±)‐abscisin II (dormin), alone and in combination with gibberellin, kinetin and indoleacetic acid, on seed germination and seedling growth of two strains of lettuce, cv. Attraktion and cv. Hohlblättriger Butter. (±)‐Abscisin II inhibited seed germination and seedling growth in both strains. The inhibitory effect of abscisin II on seed germination as well as seedling growth was completely overcome by kinetin in both dark and light. Gibberellic acid, on the other hand, proved ineffective in exerting its influence on seed germination in presence of abscisin II but affected subsequent seedling growth as usual. Indoleacetic acid was found to be least potent in reversing abscisin II caused inhibition of seed germination and seedling growtb. It is concluded, that like its effect on certain other naturally occurring inhibitors of seed germination, kinetin can effectively undo the inhibitory effects of abscisin II in these growth processes.

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 5

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

(±)-Abscisin II inhibited seed germination and seedling growth in both lettuce strains.

Taxon
lettuceLactuca sativae1
Material
cv. Attraktion and cv. Hohlblättriger Buttere1
Treatment
(±)‐Abscisin IIe2
Outcome
seed germination and seedling growthe2
Direction
inhibitede2

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“Observations have been made on the effect of synthetic, (±)‐abscisin II (dormin), alone and in combination with gibberellin, kinetin and indoleacetic acid, on seed germination and seedling growth of two strains of lettuce, cv. Attraktion and cv. Hohlblättriger Butter”

✓ located verbatim in the source · abstract, characters 9–276 · show in text ↑
e2

“(±)‐Abscisin II inhibited seed germination and seedling growth in both strains”

✓ located verbatim in the source · abstract, characters 278–356 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Kinetin completely overcame the inhibition by abscisin II of seed germination and seedling growth in dark and light.

Taxon
lettuceLactuca sativae1
Material
cv. Attraktion and cv. Hohlblättriger Buttere1
Treatment
kinetine3
Outcome
inhibitory effect of abscisin II on seed germination as well as seedling growthe3
Direction
completely overcomee3
Qualifier
in both dark and lighte3
Comparator
abscisin IIe3

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“Observations have been made on the effect of synthetic, (±)‐abscisin II (dormin), alone and in combination with gibberellin, kinetin and indoleacetic acid, on seed germination and seedling growth of two strains of lettuce, cv. Attraktion and cv. Hohlblättriger Butter”

✓ located verbatim in the source · abstract, characters 9–276 · show in text ↑
e3

“The inhibitory effect of abscisin II on seed germination as well as seedling growth was completely overcome by kinetin in both dark and light”

✓ located verbatim in the source · abstract, characters 358–499 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Gibberellic acid was ineffective on seed germination in the presence of abscisin II.

Taxon
lettuceLactuca sativae1
Material
cv. Attraktion and cv. Hohlblättriger Buttere1
Treatment
Gibberellic acide4
Outcome
seed germinatione4
Direction
ineffectivee4
Comparator
abscisin IIe4

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“Observations have been made on the effect of synthetic, (±)‐abscisin II (dormin), alone and in combination with gibberellin, kinetin and indoleacetic acid, on seed germination and seedling growth of two strains of lettuce, cv. Attraktion and cv. Hohlblättriger Butter”

✓ located verbatim in the source · abstract, characters 9–276 · show in text ↑
e4

“Gibberellic acid, on the other hand, proved ineffective in exerting its influence on seed germination in presence of abscisin II but affected subsequent seedling growth as usual”

✓ located verbatim in the source · abstract, characters 501–678 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Gibberellic acid affected subsequent seedling growth as usual, with the direction not stated.

Taxon
lettuceLactuca sativae1
Material
cv. Attraktion and cv. Hohlblättriger Buttere1
Treatment
Gibberellic acide4
Outcome
subsequent seedling growthe4

Not reportedComparatorDirection

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“Observations have been made on the effect of synthetic, (±)‐abscisin II (dormin), alone and in combination with gibberellin, kinetin and indoleacetic acid, on seed germination and seedling growth of two strains of lettuce, cv. Attraktion and cv. Hohlblättriger Butter”

✓ located verbatim in the source · abstract, characters 9–276 · show in text ↑
e4

“Gibberellic acid, on the other hand, proved ineffective in exerting its influence on seed germination in presence of abscisin II but affected subsequent seedling growth as usual”

✓ located verbatim in the source · abstract, characters 501–678 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Indoleacetic acid was the least potent of the tested substances in reversing abscisin II inhibition.

Taxon
lettuceLactuca sativae1
Material
cv. Attraktion and cv. Hohlblättriger Buttere1
Treatment
Indoleacetic acide5
Outcome
reversing abscisin II caused inhibitione5
Direction
least potente5

Not reportedComparator

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“Observations have been made on the effect of synthetic, (±)‐abscisin II (dormin), alone and in combination with gibberellin, kinetin and indoleacetic acid, on seed germination and seedling growth of two strains of lettuce, cv. Attraktion and cv. Hohlblättriger Butter”

✓ located verbatim in the source · abstract, characters 9–276 · show in text ↑
e5

“Indoleacetic acid was found to be least potent in reversing abscisin II caused inhibition”

✓ located verbatim in the source · abstract, characters 680–769 · show in text ↑

Gibberellic acid · growth · Lactuca sativa (garden lettuce)Results differ

45 papers: 36 positive, 9 negative or no effect

8 papers in the same direction as this paper · 36 reporting no difference from an alternative

  1. positive
  2. no effect
  3. positive

41 papers more in this group

See all 45 papers →

(+)-abscisic acid · growth · Lactuca sativa (garden lettuce)Positive and negative results

11 papers: 2 positive, 9 negative or no effect

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

  1. positive
  2. positive
  3. negative

7 papers more in this group

See all 11 papers →

kinetin · growth · Lactuca sativa (garden lettuce)Positive and negative results

24 papers: 21 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. no effect

20 papers more in this group

See all 24 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.