Paper · 1959 · DOAJ (DOAJ: Directory of Open Access Journals)

Spiraled heads in lettuce: Malformation in Great Lakes lettuce strains apparently an inherited character producing united wrapper leaf margins

F. W. Zink

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claims
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verbatim quotes
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citations
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research areas
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Open access · cc-by-sa

Abstract

Great Lakes lettuce, adapted to culture under a range of environmental conditions, normally produces a medium-large, globular, semi-exposed head. In some plantings, however, a percentage of the plant population develops conical-shaped heads, with the wrapper leaves or head leaves in a spiral-like fold. Market-stage plants of this type are generally referred to as spiraled heads. The shipper and retailer prefer a slightly oblate head with broad, flat butt, which can be packed evenly and firmly.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by-sa. 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 2

Observationobservedoriginal resultmeasured

Claim · model-written summary

Great Lakes lettuce normally forms medium-large, globular, semi-exposed heads.

Taxon
lettuceLactuca sativae0
Material
Great Lakes lettucee0
Outcome
medium-large, globular, semi-exposed heade0

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

e0

“Great Lakes lettuce, adapted to culture under a range of environmental conditions, normally produces a medium-large, globular, semi-exposed head”

✓ located verbatim in the source · abstract, characters 0–144 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Some plantings contain conical heads with spiral-like folds of wrapper or head leaves.

Taxon
lettuceLactuca sativat0
Organ / stage
wrapper leaves or head leavese0
Outcome
conical-shaped heads, with the wrapper leaves or head leaves in a spiral-like folde0
Qualifier
In some plantingse0

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

e0

“In some plantings, however, a percentage of the plant population develops conical-shaped heads, with the wrapper leaves or head leaves in a spiral-like fold”

✓ located verbatim in the source · abstract, characters 146–302 · show in text ↑
t0

“Spiraled heads in lettuce”

✓ located verbatim in the source · title, characters 0–25 · show in text ↑