Abstract
Abstract ‘Bartlett’ pears picked early in the harvest season stored best in an atmosphere low in O 2 (0.5-1%) and with elevated CO 2 (5%) at 0°C. However, pears harvested about 3 weeks later were intolerant to CO 2 (even 2.5%) as severe core and flesh browning occurred in storage in less than 2 months. Fruits harvested at an intermediate date were mostly tolerant to elevated CO 2 , but the number of intolerant fruits would rule out commercial feasibility. Low O 2 atmospheres (0.5-1%) caused no injury at any stage of maturity, but pears harvested late in the season were unsuited to prolonged storage regardless of atmospheric composition. Prolonged storage in controlled atmospheres, providing subsequent ripening was normal, did not result in undesirable flavor effects when the pears were canned. Firmness of individual pears is not sufficiently related to physiological status to permit its use in accurately predicting tolerance to CO 2 in storage. Core and flesh browning associated with CO 2 injury are distinct from browning and breakdown associated with excessive storage time and failure to ripen.
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Claims 9
Claim · model-written summary
Bartlett pears picked early in the harvest season stored best in low O2 (0.5-1%) with elevated CO2 (5%) at 0°C.
- Material
- Bartlette1
- Organ / stage
- picked early in the harvest seasone1
- Treatment
- low in O 2 (0.5-1%) and with elevated CO 2 (5%) at 0°Ce1
- Outcome
- stored beste1
- Direction
- stored beste1
PyrusNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Bartlett’ pears picked early in the harvest season stored best in an atmosphere low in O 2 (0.5-1%) and with elevated CO 2 (5%) at 0°C”
Claim · model-written summary
Pears harvested about 3 weeks later were intolerant to 2.5% CO2, with severe core and flesh browning in storage in less than 2 months.
- Treatment
- CO 2 (even 2.5%)e2
- Outcome
- severe core and flesh browninge2
- Qualifier
- in storage in less than 2 monthse2
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“pears harvested about 3 weeks later were intolerant to CO 2 (even 2.5%) as severe core and flesh browning occurred in storage in less than 2 months”
Claim · model-written summary
Fruits harvested at an intermediate date were mostly tolerant to elevated CO2.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Bartlett’ pears picked early in the harvest season stored best in an atmosphere low in O 2 (0.5-1%) and with elevated CO 2 (5%) at 0°C”
e3“Fruits harvested at an intermediate date were mostly tolerant to elevated CO 2 , but the number of intolerant fruits would rule out commercial feasibility”
Claim · model-written summary
The number of CO2-intolerant fruits would rule out commercial feasibility of CO2 storage for pears.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Bartlett’ pears picked early in the harvest season stored best in an atmosphere low in O 2 (0.5-1%) and with elevated CO 2 (5%) at 0°C”
e3“Fruits harvested at an intermediate date were mostly tolerant to elevated CO 2 , but the number of intolerant fruits would rule out commercial feasibility”
Claim · model-written summary
Low O2 atmospheres (0.5-1%) caused no injury at any stage of maturity.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Bartlett’ pears picked early in the harvest season stored best in an atmosphere low in O 2 (0.5-1%) and with elevated CO 2 (5%) at 0°C”
e4“Low O 2 atmospheres (0.5-1%) caused no injury at any stage of maturity”
Claim · model-written summary
Pears harvested late in the season were unsuited to prolonged storage regardless of atmospheric composition.
- Treatment
- harvested late in the seasone6
- Outcome
- unsuited to prolonged storagee6
- Qualifier
- regardless of atmospheric compositione6
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“pears harvested late in the season were unsuited to prolonged storage regardless of atmospheric composition”
Claim · model-written summary
Prolonged storage in controlled atmospheres did not cause undesirable flavor effects when pears were canned.
- Treatment
- Prolonged storage in controlled atmospherese7
- Outcome
- undesirable flavor effectse7
- Qualifier
- providing subsequent ripening was normale7
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e7“Prolonged storage in controlled atmospheres, providing subsequent ripening was normal, did not result in undesirable flavor effects when the pears were canned”
Claim · model-written summary
Firmness of individual pears is not sufficiently related to CO2 tolerance to predict it in storage.
- Treatment
- CO 2e0
- Outcome
- predicting tolerance to CO 2 in storagee0
- Qualifier
- not sufficiently related to physiological statuse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Firmness of individual pears is not sufficiently related to physiological status to permit its use in accurately predicting tolerance to CO 2 in storage”
Claim · model-written summary
Core and flesh browning associated with CO2 injury are distinct from browning and breakdown associated with excessive storage time and failure to ripen.
- Treatment
- CO 2 injurye2
- Outcome
- Core and flesh browninge2
- Comparator
- browning and breakdown associated with excessive storage time and failure to ripene2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“‘Bartlett’ pears picked early in the harvest season stored best in an atmosphere low in O 2 (0.5-1%) and with elevated CO 2 (5%) at 0°C”
e2“Core and flesh browning associated with CO 2 injury are distinct from browning and breakdown associated with excessive storage time and failure to ripen”
The same questions in other papers
co2 · disease · Pyrus (pears)Positive and negative results
4 papers in the same direction as this paper · 4 in the opposite direction
- negative
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9 in the opposite direction
- positive
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See all 10 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.