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

2, 4-D as an Air Pollutant: Effects on Market Quality of Several Horticultural Crops1

J. L. Weigle; E. L. Denisen; C. H. Sherwood

8
claims
8
verbatim quotes
3
citations
2
research areas
✓
Open access · cc-by-nc-nd

Abstract

Abstract Crops were grown in field plots under plastic-covered greenhouses for 3 years under ambient, charcoal-filtered, and charcoal-filtered with 2,4-D added atmospheres. No differences in market quality were found with green beans and raspberries. Deformed fruit in strawberries, uneven berry ripening in grapes, and blotchy ripening and deformed fruit in tomatoes occurred in “2,4-D added” treatment but not in “charcoal-filtered” treatment, while “ambient” was generally intermediate. The amount of 2,4–D in the atmosphere also influenced yields of grapes and strawberries.

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 8

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Green bean market quality did not differ across atmospheric treatments.

Taxon
green beanse0
Outcome
market qualitye0
Direction
No differencese0

Not reportedTreatmentComparator

Verbatim

e0

“No differences in market quality were found with green beans and raspberries”

✓ located verbatim in the source · abstract, characters 173–249 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Raspberry market quality did not differ across atmospheric treatments.

Taxon
raspberriese0
Outcome
market qualitye0
Direction
No differencese0

Not reportedTreatmentComparator

Verbatim

e0

“No differences in market quality were found with green beans and raspberries”

✓ located verbatim in the source · abstract, characters 173–249 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Strawberry fruit were deformed under added 2,4-D but not charcoal-filtered air.

Taxon
strawberriesFragaria ×ananassae0
Treatment
2,4-D addede0
Outcome
Deformed fruite0
Comparator
charcoal-filterede0

Not reportedDirection

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“Deformed fruit in strawberries, uneven berry ripening in grapes, and blotchy ripening and deformed fruit in tomatoes occurred in “2,4-D added” treatment but not in “charcoal-filtered” treatment”

✓ located verbatim in the source · abstract, characters 251–444 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Grape berries ripened unevenly under added 2,4-D but not charcoal-filtered air.

Taxon
grapese0
Treatment
2,4-D addede0
Outcome
uneven berry ripeninge0
Comparator
charcoal-filterede0

Not reportedDirection

Verbatim

e0

“uneven berry ripening in grapes, and blotchy ripening and deformed fruit in tomatoes occurred in “2,4-D added” treatment but not in “charcoal-filtered” treatment”

✓ located verbatim in the source · abstract, characters 283–444 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Tomato fruit ripened blotchily under added 2,4-D but not charcoal-filtered air.

Treatment
2,4-D addede0
Outcome
blotchy ripeninge0
Comparator
charcoal-filterede0

Not reportedDirection

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

“blotchy ripening and deformed fruit in tomatoes occurred in “2,4-D added” treatment but not in “charcoal-filtered” treatment”

✓ located verbatim in the source · abstract, characters 320–444 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Tomato fruit were deformed under added 2,4-D but not charcoal-filtered air.

Treatment
2,4-D addede0
Outcome
deformed fruite0
Comparator
charcoal-filterede0

Not reportedDirection

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

“blotchy ripening and deformed fruit in tomatoes occurred in “2,4-D added” treatment but not in “charcoal-filtered” treatment”

✓ located verbatim in the source · abstract, characters 320–444 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Atmospheric 2,4-D amount influenced grape yields, with direction unstated.

Taxon
grapese0
Treatment
2,4–De0
Outcome
yieldse0

Not reportedDirection

Verbatim

e0

“The amount of 2,4–D in the atmosphere also influenced yields of grapes and strawberries”

✓ located verbatim in the source · abstract, characters 490–577 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

Atmospheric 2,4-D amount influenced strawberry yields, with direction unstated.

Taxon
strawberriesFragaria ×ananassae0
Treatment
2,4–De0
Outcome
yieldse0

Not reportedDirection

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

Fragaria x ananassa
Fragaria ×ananassa · TaxonIvar Leidus · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“The amount of 2,4–D in the atmosphere also influenced yields of grapes and strawberries”

✓ located verbatim in the source · abstract, characters 490–577 · show in text ↑

2,4-D · quality: postharvest · Solanum lycopersicum (tomato)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 →

2,4-D · quality: postharvest · VitisResults agree

2 papers: 0 positive, 2 negative or no effect

1 paper in the same direction as this paper

  1. negative
See all 2 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.