Abstract
The incidence and severity of “`Braeburn' browning disorder” (BBD), a CO 2 -induced disorder of `Braeburn' apple ( Malus × domestica Borkh.), vary markedly with production district and orchard block. We investigated the effects of harvest date, blush, and crop load on fruit maturity, minerals, skin permeance, and BBD incidence. Incidence of BBD was higher in late-than in early-harvested fruit and in fruit on light than on heavily cropping trees, but blush intensity did not influence susceptibility to the disorder. Fruit maturity factors were affected by region, harvest date, blush type, and crop load, but no consistent relationships between these factors and BBD occurrence were found. Concentrations of Ca, Mg, and/or K were influenced by harvest date, blush type, and crop load, and skin permeance to gas exchange was affected by growing region and blush type, but not by harvest date or crop load. However, no physiological or mineral factor measured in this study was strongly correlated with susceptibility of fruit to BBD. Fruit from orchards that have a history of susceptibility to BBD, or subjected to adverse harvest date, regional, crop load, microclimate, and seasonal influences, should be segregated at harvest, and should not be held in controlled-atmosphere (CA) storage. Crop load should be managed to reduce the occurrence of biennial bearing.
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Claims 11
Claim · model-written summary
Incidence of Braeburn browning disorder was higher in late-harvested than in early-harvested fruit.
- Taxon
- Apple
Malus domesticat0 - Treatment
- latee0
- Outcome
- Incidence of BBDe0
- Direction
- highere0
- Comparator
- early-harvested fruite0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple”
e0“Incidence of BBD was higher in late-than in early-harvested fruit and in fruit on light than on heavily cropping trees, but blush intensity did not influence susceptibility to the disorder”
Claim · model-written summary
Incidence of the disorder was higher in fruit on lightly cropping trees than on heavily cropping trees.
- Taxon
- AppleMalus domesticat0
- Treatment
- lighte0
- Outcome
- Incidence of BBDe0
- Direction
- highere0
- Comparator
- heavily cropping treese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple”
e0“Incidence of BBD was higher in late-than in early-harvested fruit and in fruit on light than on heavily cropping trees, but blush intensity did not influence susceptibility to the disorder”
Claim · model-written summary
Blush intensity did not influence susceptibility to the disorder.
- Taxon
- AppleMalus domesticat0
- Treatment
- blush intensitye0
- Outcome
- susceptibility to the disordere0
- Direction
- did not influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple”
e0“Incidence of BBD was higher in late-than in early-harvested fruit and in fruit on light than on heavily cropping trees, but blush intensity did not influence susceptibility to the disorder”
Claim · model-written summary
Fruit maturity factors were affected by region, harvest date, blush type and crop load.
- Taxon
- AppleMalus domesticat0
- Treatment
- harvest date, blush type, and crop loade0
- Outcome
- Fruit maturity factorse0
- Setting
- regione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple”
e0“Fruit maturity factors were affected by region, harvest date, blush type, and crop load, but no consistent relationships between these factors and BBD occurrence were found”
Claim · model-written summary
No consistent relationships were found between the fruit maturity factors and BBD occurrence.
- Taxon
- AppleMalus domesticat0
- Treatment
- these factorse0
- Outcome
- BBD occurrencee0
- Direction
- no consistent relationshipse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple”
e0“Fruit maturity factors were affected by region, harvest date, blush type, and crop load, but no consistent relationships between these factors and BBD occurrence were found”
Claim · model-written summary
Concentrations of Ca, Mg and/or K were influenced by harvest date, blush type and crop load.
- Taxon
- AppleMalus domesticat0
- Treatment
- harvest date, blush type, and crop loade0
- Outcome
- Concentrations of Ca, Mg, and/or Ke0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple”
e0“Concentrations of Ca, Mg, and/or K were influenced by harvest date, blush type, and crop load”
Claim · model-written summary
Skin permeance to gas exchange was affected by growing region and blush type.
- Taxon
- AppleMalus domesticat0
- Treatment
- blush typee0
- Outcome
- skin permeance to gas exchangee0
- Setting
- growing regione0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple”
e0“skin permeance to gas exchange was affected by growing region and blush type, but not by harvest date or crop load”
Claim · model-written summary
Skin permeance to gas exchange was not affected by harvest date or crop load.
- Taxon
- AppleMalus domesticat0
- Treatment
- harvest date or crop loade0
- Outcome
- skin permeance to gas exchangee0
- Direction
- no_changeinferrede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple”
e0“skin permeance to gas exchange was affected by growing region and blush type, but not by harvest date or crop load”
Claim · model-written summary
No physiological or mineral factor measured was strongly correlated with fruit susceptibility to BBD.
- Taxon
- AppleMalus domesticat0
- Treatment
- physiological or mineral factore0
- Outcome
- susceptibility of fruit to BBDe0
- Direction
- no_changeinferrede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple”
e0“no physiological or mineral factor measured in this study was strongly correlated with susceptibility of fruit to BBD”
Claim · model-written summary
Fruit from susceptible orchards or exposed to adverse influences should be segregated at harvest and not held in controlled-atmosphere storage.
- Taxon
- AppleMalus domesticat0
- Outcome
- segregated at harveste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple”
e0“should be segregated at harvest, and should not be held in controlled-atmosphere (CA) storage”
Claim · model-written summary
Crop load should be managed to reduce the occurrence of biennial bearing.
- Taxon
- AppleMalus domesticat0
- Treatment
- Crop loade0
- Outcome
- occurrence of biennial bearinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Apple”
e0“Crop load should be managed to reduce the occurrence of biennial bearing”
The same questions in other papers
light · disease · Malus domestica (apple)Positive and negative results
2 papers in the same direction as this paper · 4 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
See all 7 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.