Paper · 1975 · HortScience

Effects of Ethephon on Abscission of Vegetative and Reproductive Structures of Phaseolus vulgaris L.1

Barbara D. Webster; Mary E. Craig; C. L. Tucker

10
claims
25
verbatim quotes
1
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract (2-Chloroethyl)phosphonic acid (ethephon) at 250 ppm controlled bud and flower abscission but not young pod abscission of ‘Dark Red Kidney’ bean. Leaf abscission was unaffected, intemodal elongation was temporarily retarded, and the number of seeds but not the number of pods produced exceeded that of untreated plants but the difference in seed production was not significant. Treatment with 500 ppm ethephon resulted in a pattern of abscission similar to that of untreated plants. At higher concentrations (1000 and 2000 ppm) abscission of reproductive structures and of leaves was promoted. Seed production, seed maturity, and seed size were reduced. New leaves were pendant and were smaller than those of untreated plants.

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 10

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

At 250 ppm, ethephon controlled bud and flower abscission.

Taxon
Phaseolus vulgarisPhaseolus vulgarist0
Material
Dark Red Kidneye0
Treatment
ethephon) at 250 ppme0
Outcome
bud and flower abscissione0
Direction
controllede0

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Phaseolus vulgaris”

✓ located verbatim in the source · title, characters 79–97 · show in text ↑
e0

“(2-Chloroethyl)phosphonic acid (ethephon) at 250 ppm controlled bud and flower abscission but not young pod abscission of ‘Dark Red Kidney’ bean”

✓ located verbatim in the source · abstract, characters 9–153 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

At 250 ppm, ethephon did not control young pod abscission.

Taxon
Phaseolus vulgarisPhaseolus vulgarist0
Material
Dark Red Kidneye0
Treatment
at 250 ppme0
Outcome
young pod abscissione0
Direction
note0

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Phaseolus vulgaris”

✓ located verbatim in the source · title, characters 79–97 · show in text ↑
e0

“at 250 ppm controlled bud and flower abscission but not young pod abscission of ‘Dark Red Kidney’ bean”

✓ located verbatim in the source · abstract, characters 51–153 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Leaf abscission was unaffected by the 250 ppm treatment.

Taxon
Phaseolus vulgarisPhaseolus vulgarist0
Treatment
ethephon) at 250 ppme1
Outcome
Leaf abscissione0
Direction
unaffectede0

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Phaseolus vulgaris”

✓ located verbatim in the source · title, characters 79–97 · show in text ↑
e0

“Leaf abscission was unaffected”

✓ located verbatim in the source · abstract, characters 155–185 · show in text ↑
e1

“ethephon) at 250 ppm”

✓ located verbatim in the source · abstract, characters 41–61 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Internodal elongation was temporarily retarded.

Taxon
Phaseolus vulgarisPhaseolus vulgarist0
Treatment
ethephon) at 250 ppme1
Outcome
intemodal elongatione0
Direction
retardede0
Qualifier
temporarilye0

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Phaseolus vulgaris”

✓ located verbatim in the source · title, characters 79–97 · show in text ↑
e0

“intemodal elongation was temporarily retarded”

✓ located verbatim in the source · abstract, characters 187–232 · show in text ↑
e1

“ethephon) at 250 ppm”

✓ located verbatim in the source · abstract, characters 41–61 · show in text ↑
Intervention effectobservedoriginal resultpositivenot significant (as stated)measured

Claim · model-written summary

Seed number exceeded untreated plants after 250 ppm ethephon, without statistical significance.

Taxon
Phaseolus vulgarisPhaseolus vulgarist0
Treatment
ethephon) at 250 ppme1
Outcome
number of seedse0
Direction
exceedede0
Comparator
untreated plantse0

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Phaseolus vulgaris”

✓ located verbatim in the source · title, characters 79–97 · show in text ↑
e0

“the number of seeds but not the number of pods produced exceeded that of untreated plants but the difference in seed production was not significant”

✓ located verbatim in the source · abstract, characters 238–385 · show in text ↑
e1

“ethephon) at 250 ppm”

✓ located verbatim in the source · abstract, characters 41–61 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Pod number did not exceed untreated plants after 250 ppm ethephon.

Taxon
Phaseolus vulgarisPhaseolus vulgarist0
Treatment
ethephon) at 250 ppme1
Outcome
number of podse0
Comparator
untreated plantse0

Not reportedDirection

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Phaseolus vulgaris”

✓ located verbatim in the source · title, characters 79–97 · show in text ↑
e0

“the number of seeds but not the number of pods produced exceeded that of untreated plants”

✓ located verbatim in the source · abstract, characters 238–327 · show in text ↑
e1

“ethephon) at 250 ppm”

✓ located verbatim in the source · abstract, characters 41–61 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

At 500 ppm, ethephon produced an abscission pattern similar to untreated plants.

Taxon
Phaseolus vulgarisPhaseolus vulgarist0
Treatment
500 ppm ethephone0
Outcome
pattern of abscissione0
Direction
similare0
Comparator
untreated plantse0

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Phaseolus vulgaris”

✓ located verbatim in the source · title, characters 79–97 · show in text ↑
e0

“Treatment with 500 ppm ethephon resulted in a pattern of abscission similar to that of untreated plants”

✓ located verbatim in the source · abstract, characters 387–490 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

At 1000 and 2000 ppm, ethephon promoted reproductive-structure and leaf abscission.

Taxon
Phaseolus vulgarisPhaseolus vulgarist0
Treatment
1000 and 2000 ppme0
Outcome
abscission of reproductive structures and of leavese0
Direction
promotede0

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Phaseolus vulgaris”

✓ located verbatim in the source · title, characters 79–97 · show in text ↑
e0

“At higher concentrations (1000 and 2000 ppm) abscission of reproductive structures and of leaves was promoted”

✓ located verbatim in the source · abstract, characters 492–601 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher ethephon concentrations reduced seed production, maturity and size.

Taxon
Phaseolus vulgarisPhaseolus vulgarist0
Treatment
1000 and 2000 ppme0
Outcome
Seed production, seed maturity, and seed sizee0
Direction
reducede0

Not reportedComparator

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Phaseolus vulgaris”

✓ located verbatim in the source · title, characters 79–97 · show in text ↑
e0

“At higher concentrations (1000 and 2000 ppm) abscission of reproductive structures and of leaves was promoted. Seed production, seed maturity, and seed size were reduced”

✓ located verbatim in the source · abstract, characters 492–661 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

New leaves were pendant and smaller than on untreated plants.

Taxon
Phaseolus vulgarisPhaseolus vulgarist0
Treatment
1000 and 2000 ppme1
Outcome
New leavese0
Direction
smallere0
Comparator
untreated plantse0

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

Phaseolus vulgaris
Phaseolus vulgaris · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“Phaseolus vulgaris”

✓ located verbatim in the source · title, characters 79–97 · show in text ↑
e0

“New leaves were pendant and were smaller than those of untreated plants”

✓ located verbatim in the source · abstract, characters 663–734 · show in text ↑
e1

“At higher concentrations (1000 and 2000 ppm)”

✓ located verbatim in the source · abstract, characters 492–536 · show in text ↑

(2-chloroethyl)phosphonic acid · yield · Phaseolus vulgaris (common bean)Results differ

8 papers: 5 positive, 3 negative or no effect

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

  1. negative
  2. no effect
  3. negative

4 papers more in this group

See all 8 papers →

(2-chloroethyl)phosphonic acid · growth · Phaseolus vulgaris (common bean)Positive and negative results

5 papers: 3 positive, 2 negative or no effect

1 paper in the same direction as this paper · 3 in the opposite direction

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 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.