Paper · 1995 · HortScience

Pungency and Sugar Changes in lLong-day Onions Due to Different Storage Times and Temperatures

Bhimanagouda S. Patil; Bill B. Dean

10
claims
20
verbatim quotes
0
citations
2
research areas
✓
Open access · public-domain

Abstract

Twenty-four genotypes of `Walla Walla' sweet onion ( Allium cepa L.) grown in two locations were evaluated for several characteristics associated with bulb flavor and storage losses. The range of pyruvic acid content in bulbs stored (at 5C and 65–75% RH) for 0, 2, and 4 months were 3.4–7.54, 3.48–18.81, and 3.92–12.61 (μmol·g –1 ), respectively, among different genotypes. Bulb quality of several genotypes decreased during storage, as indicated by lower total sugar concentration (fructose, glucose, and sucrose) and greater pungency. At 5C after 4 months of storage, the range of marketable bulbs (percent by weight) was 31% to 89% among genotypes; however, at 15C, only two genotypes survived with 60% marketable bulbs. Pungency and sweetness changed independently during storage. Pyruvic acid was not correlated ( r = 0.038) with the percentage of marketable bulbs remaining after 4 months of storage. In comparison with the short-day sweet onions (`Vidalia' and `Texas Grano 1015Y), `Walla Walla' sweet onions showed two-fold higher sugar: pungency ratio among genotypes.

Abstract from the paper’s OpenAlex record; open copy licensed public-domain. 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

Observationobservedoriginal resultmeasured

Claim · model-written summary

Pyruvic acid content in stored sweet onion bulbs was 3.4–7.54 μmol·g−1 at 0 months of storage.

Taxon
Allium cepa L.Allium cepae1
Treatment
stored (at 5C and 65–75% RH) for 0, 2, and 4 monthse2
Outcome
pyruvic acid contente2
Value
3.4–7.54e2

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Twenty-four genotypes of `Walla Walla' sweet onion ( Allium cepa L.) grown in two locations were evaluated for several characteristics associated with bulb flavor and storage losses”

✓ located verbatim in the source · abstract, characters 0–181 · show in text ↑
e2

“The range of pyruvic acid content in bulbs stored (at 5C and 65–75% RH) for 0, 2, and 4 months were 3.4–7.54, 3.48–18.81, and 3.92–12.61”

✓ located verbatim in the source · abstract, characters 183–319 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Pyruvic acid content in stored sweet onion bulbs was 3.48–18.81 μmol·g−1 at 2 months of storage.

Taxon
Allium cepa L.Allium cepae1
Treatment
stored (at 5C and 65–75% RH) for 0, 2, and 4 monthse2
Outcome
pyruvic acid contente2
Value
3.48–18.81e2

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Twenty-four genotypes of `Walla Walla' sweet onion ( Allium cepa L.) grown in two locations were evaluated for several characteristics associated with bulb flavor and storage losses”

✓ located verbatim in the source · abstract, characters 0–181 · show in text ↑
e2

“The range of pyruvic acid content in bulbs stored (at 5C and 65–75% RH) for 0, 2, and 4 months were 3.4–7.54, 3.48–18.81, and 3.92–12.61”

✓ located verbatim in the source · abstract, characters 183–319 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Pyruvic acid content in stored sweet onion bulbs was 3.92–12.61 μmol·g−1 at 4 months of storage.

Taxon
Allium cepa L.Allium cepae1
Treatment
stored (at 5C and 65–75% RH) for 0, 2, and 4 monthse2
Outcome
pyruvic acid contente2
Value
3.92–12.61e2

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Twenty-four genotypes of `Walla Walla' sweet onion ( Allium cepa L.) grown in two locations were evaluated for several characteristics associated with bulb flavor and storage losses”

✓ located verbatim in the source · abstract, characters 0–181 · show in text ↑
e2

“The range of pyruvic acid content in bulbs stored (at 5C and 65–75% RH) for 0, 2, and 4 months were 3.4–7.54, 3.48–18.81, and 3.92–12.61”

✓ located verbatim in the source · abstract, characters 183–319 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Storage decreased total sugar concentration of sweet onion bulbs.

Taxon
Allium cepa L.Allium cepae1
Treatment
during storagee3
Outcome
total sugar concentratione3
Direction
lowere3

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Twenty-four genotypes of `Walla Walla' sweet onion ( Allium cepa L.) grown in two locations were evaluated for several characteristics associated with bulb flavor and storage losses”

✓ located verbatim in the source · abstract, characters 0–181 · show in text ↑
e3

“Bulb quality of several genotypes decreased during storage, as indicated by lower total sugar concentration (fructose, glucose, and sucrose) and greater pungency”

✓ located verbatim in the source · abstract, characters 375–536 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Storage increased pungency of sweet onion bulbs.

Taxon
Allium cepa L.Allium cepae1
Treatment
during storagee3
Outcome
pungencye3
Direction
greatere3

Not reportedComparator

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Twenty-four genotypes of `Walla Walla' sweet onion ( Allium cepa L.) grown in two locations were evaluated for several characteristics associated with bulb flavor and storage losses”

✓ located verbatim in the source · abstract, characters 0–181 · show in text ↑
e3

“Bulb quality of several genotypes decreased during storage, as indicated by lower total sugar concentration (fructose, glucose, and sucrose) and greater pungency”

✓ located verbatim in the source · abstract, characters 375–536 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Pungency and sweetness of onion bulbs changed independently during storage.

Taxon
Allium cepa L.Allium cepae1
Treatment
during storagee5
Outcome
Pungency and sweetnesse5

Not reportedDirection

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Twenty-four genotypes of `Walla Walla' sweet onion ( Allium cepa L.) grown in two locations were evaluated for several characteristics associated with bulb flavor and storage losses”

✓ located verbatim in the source · abstract, characters 0–181 · show in text ↑
e5

“Pungency and sweetness changed independently during storage”

✓ located verbatim in the source · abstract, characters 725–784 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

At 5C after 4 months of storage, marketable bulbs ranged from 31% to 89% among onion genotypes.

Taxon
Allium cepa L.Allium cepae1
Treatment
At 5C after 4 months of storagee4
Outcome
marketable bulbse4
Value
31% to 89%e4
Qualifier
percent by weighte4

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Twenty-four genotypes of `Walla Walla' sweet onion ( Allium cepa L.) grown in two locations were evaluated for several characteristics associated with bulb flavor and storage losses”

✓ located verbatim in the source · abstract, characters 0–181 · show in text ↑
e4

“At 5C after 4 months of storage, the range of marketable bulbs (percent by weight) was 31% to 89% among genotypes; however, at 15C, only two genotypes survived with 60% marketable bulbs”

✓ located verbatim in the source · abstract, characters 538–723 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

At 15C, only two onion genotypes survived storage, with 60% marketable bulbs.

Taxon
Allium cepa L.Allium cepae1
Treatment
at 15Ce4
Outcome
marketable bulbse4
Value
60%e4
Qualifier
only two genotypes survivede4

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Twenty-four genotypes of `Walla Walla' sweet onion ( Allium cepa L.) grown in two locations were evaluated for several characteristics associated with bulb flavor and storage losses”

✓ located verbatim in the source · abstract, characters 0–181 · show in text ↑
e4

“At 5C after 4 months of storage, the range of marketable bulbs (percent by weight) was 31% to 89% among genotypes; however, at 15C, only two genotypes survived with 60% marketable bulbs”

✓ located verbatim in the source · abstract, characters 538–723 · show in text ↑
Associationobservedoriginal resultno effectmeasured

Claim · model-written summary

Pyruvic acid was not correlated with the percentage of marketable bulbs remaining after 4 months of storage.

Taxon
Allium cepa L.Allium cepae1
Compound
Pyruvic acide6
Outcome
percentage of marketable bulbs remaining after 4 monthse6
Value
r = 0.038e6

Not reportedDirection

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Twenty-four genotypes of `Walla Walla' sweet onion ( Allium cepa L.) grown in two locations were evaluated for several characteristics associated with bulb flavor and storage losses”

✓ located verbatim in the source · abstract, characters 0–181 · show in text ↑
e6

“Pyruvic acid was not correlated ( r = 0.038) with the percentage of marketable bulbs remaining after 4 months of storage”

✓ located verbatim in the source · abstract, characters 786–906 · show in text ↑
Associationobservedoriginal resultpositivemeasured

Claim · model-written summary

Walla Walla sweet onions had a two-fold higher sugar:pungency ratio than short-day sweet onions.

Taxon
Allium cepa L.Allium cepae1
Material
Walla Wallae7
Outcome
sugar: pungency ratioe7
Direction
highere7
Value
two-folde7
Comparator
short-day sweet onions (`Vidalia' and `Texas Grano 1015Y)e7

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

Allium cepa
Allium cepa · TaxonMehdi · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e1

“Twenty-four genotypes of `Walla Walla' sweet onion ( Allium cepa L.) grown in two locations were evaluated for several characteristics associated with bulb flavor and storage losses”

✓ located verbatim in the source · abstract, characters 0–181 · show in text ↑
e7

“In comparison with the short-day sweet onions (`Vidalia' and `Texas Grano 1015Y), `Walla Walla' sweet onions showed two-fold higher sugar: pungency ratio among genotypes”

✓ located verbatim in the source · abstract, characters 908–1077 · show in text ↑

storage · quality: sugar starch · Allium cepa (onion)Positive and negative results

5 papers: 2 positive, 3 negative or no effect

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

  1. positive
  2. positive
  3. no effect

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.