Abstract
This studies were made to determine the rela-tionships between the characters of onion bulbs, especially size, shape, condition of neck or soluble solids content, and their sprouting during the storage period. Experiments were carried out during 1951_??_1954 and the variety used was “Sapporo-ki” onion that was widely distributed in Hokkaido. The results may be summarized as follows: 1. In the case of the same variety cultivated and stored by the same method, the amount of sprouting during storage was scarcely related to the size of the bulbs (Table 1, 2). 2. The amount of sprouting was considered to be connected with the shape of bulbs; for the .standard, round type of this variety, total losses which were caused by sprouting and decay were always lowest (Table 3, 4, 5). 3. There was a tendency for bulbs having a relatively good solid flesh with firm necks to be less susceptible to sprouting and shrinkage during storage than those with relatively soft flesh or necks (Table 6). 4. Total soluble solids were determined at this trials by the hand sugar refractometer as a method for rapid determination. There appeared to be a positive high significant correlation (r=+0.653:D. F.=24) between soluble solids and dry matter content, and soluble solids' appeared to increase from top to base of bulb, and from outer to inner scales (Table 7, 8). 5. There appeared to be a negative, high signi-ficant correlation between soluble solids content and the amount of sprouting during storage (Table 9). And soluble solids content was found to be close-ly related to total sugar content, with special reference to reducing sugar, or soluble nitrogen content (Table 7, 8). 6. With the sprouting of bulbs, the content of sugar, nitrogen or dry matter components were observed to transfer gradually from top to base and to decrease very much in the outer or inner than middle scales. And soluble solids content in each part of the bulbs decreased in parallel with the tendency to be shown in each part for non-sprouting period (Fig. 2, 3, 4; Table 10). 7. Observations in this experiments have indi-cated that it appears to be possible to some extent to estimate the general level of sprouting during storage, by determining soluble solids content by the hand sugar refractometer at harvest time, on the condition of same variety under same cultural management.
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Claims 11
Claim · model-written summary
Bulb size was scarcely related to storage sprouting within the same cultivar and management.
- Taxon
- onion
Allium cepae1 - Material
- “Sapporo-ki”e1
- Organ / stage
- bulbse0
- Outcome
- amount of sprouting during storagee0
- Qualifier
- scarcely relatede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the amount of sprouting during storage was scarcely related to the size of the bulbs”
e1““Sapporo-ki” onion”
Claim · model-written summary
Round bulbs had the lowest combined loss from sprouting and decay.
- Taxon
- onionAllium cepae1
- Material
- “Sapporo-ki”e1
- Outcome
- total losses which were caused by sprouting and decaye0
- Direction
- loweste0
- Qualifier
- round typee0
Not reportedOrgan / stage
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for the .standard, round type of this variety, total losses which were caused by sprouting and decay were always lowest”
e1““Sapporo-ki” onion”
Claim · model-written summary
Bulbs with solid flesh and firm necks tended to sprout and shrink less.
- Taxon
- onionAllium cepae1
- Organ / stage
- bulbse0
- Outcome
- sprouting and shrinkage during storagee0
- Direction
- less susceptiblee0
- Qualifier
- relatively good solid flesh with firm neckse0
- Comparator
- those with relatively soft flesh or neckse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“bulbs having a relatively good solid flesh with firm necks to be less susceptible to sprouting and shrinkage during storage than those with relatively soft flesh or necks”
e1““Sapporo-ki” onion”
Claim · model-written summary
Soluble solids and dry matter content had a strong positive significant correlation.
- Taxon
- onionAllium cepae1
- Compound
- dry mattere0
- Outcome
- soluble solidse0
- Direction
- positivee0
- Value
- r=+0.653:D. F.=24e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“positive high significant correlation (r=+0.653:D. F.=24) between soluble solids and dry matter content”
e1““Sapporo-ki” onion”
Claim · model-written summary
Soluble solids increased from the top to base of the bulb and from outer to inner scales.
- Taxon
- onionAllium cepae1
- Organ / stage
- bulbe0
- Outcome
- soluble solidse0
- Direction
- increasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soluble solids' appeared to increase from top to base of bulb, and from outer to inner scales”
e1““Sapporo-ki” onion”
Claim · model-written summary
Soluble solids content had a strong negative significant correlation with storage sprouting.
- Taxon
- onionAllium cepae1
- Compound
- soluble solids contente0
- Outcome
- amount of sprouting during storagee0
- Direction
- negativee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“negative, high signi-ficant correlation between soluble solids content and the amount of sprouting during storage”
e1““Sapporo-ki” onion”
Claim · model-written summary
Soluble solids content was closely related to total sugar, especially reducing sugar, and soluble nitrogen.
- Taxon
- onionAllium cepae1
- Compound
- total sugar contente0
- Outcome
- soluble solids contente0
- Qualifier
- reducing sugar, or soluble nitrogen contente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soluble solids content was found to be close-ly related to total sugar content, with special reference to reducing sugar, or soluble nitrogen content”
e1““Sapporo-ki” onion”
Claim · model-written summary
During sprouting, sugar, nitrogen and dry matter components shifted from bulb top to base.
- Taxon
- onionAllium cepae1
- Organ / stage
- bulbse0
- Outcome
- content of sugar, nitrogen or dry matter componentse0
- Direction
- transfer gradually from top to basee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the sprouting of bulbs, the content of sugar, nitrogen or dry matter components were observed to transfer gradually from top to base”
e1““Sapporo-ki” onion”
Claim · model-written summary
During sprouting, sugar, nitrogen and dry matter components declined more in outer and inner scales than in middle scales.
- Taxon
- onionAllium cepae2
- Organ / stage
- outer or inner than middle scalese0
- Outcome
- content of sugar, nitrogen or dry matter componentse1
- Direction
- decreasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“to decrease very much in the outer or inner than middle scales”
e1“content of sugar, nitrogen or dry matter components”
e2““Sapporo-ki” onion”
Claim · model-written summary
Soluble solids declined in each bulb part during sprouting.
- Taxon
- onionAllium cepae1
- Outcome
- soluble solids content in each part of the bulbse0
- Direction
- decreasede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soluble solids content in each part of the bulbs decreased in parallel with the tendency to be shown in each part for non-sprouting period”
e1““Sapporo-ki” onion”
Claim · model-written summary
Harvest-time refractometer measurements of soluble solids could estimate general storage sprouting levels within a similarly managed cultivar.
- Taxon
- onionAllium cepae1
- Outcome
- general level of sprouting during storagee0
- Qualifier
- same variety under same cultural managemente0
- Comparator
- soluble solids contente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it appears to be possible to some extent to estimate the general level of sprouting during storage, by determining soluble solids content by the hand sugar refractometer at harvest time, on the condition of same variety under same cultural management”
e1““Sapporo-ki” onion”