Paper · 1970 · Journal of the American Society for Horticultural Science

Effects of 2-Chloroethylphosphonic Acid Treatment at Various Stages of Cucumber Development1

R. L. Lower; C. H. Miller; F. H. Baker; et al.

6
claims
12
verbatim quotes
0
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract Aqueous solutions of 2-chloroethylphosphonic acid (Ethrel) at concn of 120 ppm were applied twice at 48 hr intervals to monoecious cucumber plants having either 1, 2, 3, 4, 6, 8, 10, or 12 true leaves. Slight checks in plant growth were noted at treatments through the 6th leaf. Plants treated at either the 8th, 10th, or 12th leaf were severely checked in growth and pistillate flowers open at time of treatment and developing floral primordia aborted within a week; however, all treated plants recovered and flowering resumed 15-18 days after treatment. Ethrel treatment, regardless of time of application, resulted in increased no. of pistillate flowers, concentrated pistillate flower production, and a significant reduction in the no. of staminate flowers.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-nc-nd. 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 6

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Ethrel treatment through the sixth leaf slightly checked cucumber growth.

Taxon
CucumberCucumis sativust0
Treatment
treatments through the 6th leafe0
Outcome
plant growthe0
Direction
Slight checkse0

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

t0

“Cucumber”

✓ located verbatim in the source · title, characters 71–79 · show in text ↑
e0

“Slight checks in plant growth were noted at treatments through the 6th leaf”

✓ located verbatim in the source · abstract, characters 211–286 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Ethrel treatment at the eighth, tenth, or twelfth leaf severely checked cucumber growth.

Taxon
CucumberCucumis sativust0
Treatment
treated at either the 8th, 10th, or 12th leafe0
Outcome
growthe0
Direction
severely checkede0

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

t0

“Cucumber”

✓ located verbatim in the source · title, characters 71–79 · show in text ↑
e0

“Plants treated at either the 8th, 10th, or 12th leaf were severely checked in growth”

✓ located verbatim in the source · abstract, characters 288–372 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

After later stage Ethrel treatment, open pistillate flowers and developing floral primordia aborted within a week.

Taxon
CucumberCucumis sativust0
Treatment
treated at either the 8th, 10th, or 12th leafe0
Outcome
pistillate flowers open at time of treatment and developing floral primordia abortede0
Qualifier
within a weeke0

Not reportedComparatorDirection

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

t0

“Cucumber”

✓ located verbatim in the source · title, characters 71–79 · show in text ↑
e0

“Plants treated at either the 8th, 10th, or 12th leaf were severely checked in growth and pistillate flowers open at time of treatment and developing floral primordia aborted within a week”

✓ located verbatim in the source · abstract, characters 288–475 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

All treated cucumber plants recovered and flowering resumed 15-18 days after treatment.

Taxon
CucumberCucumis sativust0
Outcome
flowering resumede0
Value
15-18 dayse0

Not reportedDirection

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

t0

“Cucumber”

✓ located verbatim in the source · title, characters 71–79 · show in text ↑
e0

“all treated plants recovered and flowering resumed 15-18 days after treatment”

✓ located verbatim in the source · abstract, characters 486–563 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Ethrel increased and concentrated pistillate flower production regardless of application time.

Taxon
CucumberCucumis sativust0
Treatment
Ethrel treatmente0
Outcome
no. of pistillate flowers, concentrated pistillate flower productione0
Direction
increasede0

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

t0

“Cucumber”

✓ located verbatim in the source · title, characters 71–79 · show in text ↑
e0

“Ethrel treatment, regardless of time of application, resulted in increased no. of pistillate flowers, concentrated pistillate flower production”

✓ located verbatim in the source · abstract, characters 565–708 · show in text ↑
Intervention effectobservedoriginal resultsignificant (as stated)measured

Claim · model-written summary

Ethrel significantly reduced staminate flower number.

Taxon
CucumberCucumis sativust0
Treatment
Ethrel treatmente0
Outcome
no. of staminate flowerse0
Direction
reductione0

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

t0

“Cucumber”

✓ located verbatim in the source · title, characters 71–79 · show in text ↑
e0

“Ethrel treatment, regardless of time of application, resulted in increased no. of pistillate flowers, concentrated pistillate flower production, and a significant reduction in the no. of staminate flowers”

✓ located verbatim in the source · abstract, characters 565–769 · show in text ↑

(2-chloroethyl)phosphonic acid · yield · Cucumis sativus (cucumber)Results differ

18 papers: 15 positive, 3 negative or no effect

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

  1. negative
  2. no effect
  3. no effect

14 papers more in this group

See all 18 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.