Abstract
Phosphate compounds (NH 4 H 2 PO 4 , KH 2 PO 4 and CaH 4 (PO 4 ) 2 in 1982; NH 4 H 2 PO 4 in 1983) applied to McIntosh apple trees as six foliar sprays at weekly intervals starting 4 wk after bloom, increased leaf and fruit P, decreased loss of firmness under some storage conditions and decreased incidence of low-temperature storage disorders. Phosphate sprays improved firmness retention of apples stored in either 5% CO 2 plus 3% O 2 or 0.7% CO 2 plus 1% O 2 in 1982 and maintained fruit firmness during a simulated shelf life at 20 °C for apples stored at 0 °C. Firmness retention at 20 °C of the 1983 crop was improved by monobasic ammonium phosphate regardless of storage temperature. Apple samples from unsprayed control trees had mean phosphorus concentrations of 85.4 and 94.4 ppm fresh weight in 1982 and 1983, respectively (whole fruit less seeds and stems).Key words: Apple, fruit phosphorus, low temperature breakdown, core flush
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Claims 9
Claim · model-written summary
Phosphate sprays increased leaf and fruit phosphorus in McIntosh apple.
- Taxon
- apple
Malus domesticae0 - Material
- McIntoshe0
- Treatment
- Phosphate compoundse0
- Outcome
- leaf and fruit Pe0
- Direction
- increasede0
- Qualifier
- six foliar sprays at weekly intervals starting 4 wk after bloome0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphate compounds (NH 4 H 2 PO 4 , KH 2 PO 4 and CaH 4 (PO 4 ) 2 in 1982; NH 4 H 2 PO 4 in 1983) applied to McIntosh apple trees as six foliar sprays at weekly intervals starting 4 wk after bloom, increased leaf and fruit P”
Claim · model-written summary
Phosphate sprays decreased firmness loss under some storage conditions.
- Taxon
- applesMalus domesticae1
- Treatment
- Phosphate sprayse1
- Outcome
- loss of firmnesse0
- Direction
- decreasede0
- Qualifier
- under some storage conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased loss of firmness under some storage conditions”
e1“Phosphate sprays improved firmness retention of apples”
Claim · model-written summary
Phosphate sprays decreased low temperature storage disorder incidence.
- Taxon
- applesMalus domesticae1
- Treatment
- Phosphate sprayse1
- Outcome
- incidence of low-temperature storage disorderse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased incidence of low-temperature storage disorders”
e1“Phosphate sprays improved firmness retention of apples”
Claim · model-written summary
Phosphate sprays improved firmness retention in apples stored in 5% CO2 plus 3% O2 in 1982.
- Taxon
- applesMalus domesticae0
- Treatment
- Phosphate sprayse0
- Outcome
- firmness retentione0
- Direction
- improvede0
- Qualifier
- 5% CO 2 plus 3% O 2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphate sprays improved firmness retention of apples stored in either 5% CO 2 plus 3% O 2 or 0.7% CO 2 plus 1% O 2 in 1982”
Claim · model-written summary
Phosphate sprays improved firmness retention in apples stored in 0.7% CO2 plus 1% O2 in 1982.
- Taxon
- applesMalus domesticae0
- Treatment
- Phosphate sprayse0
- Outcome
- firmness retentione0
- Direction
- improvede0
- Qualifier
- 0.7% CO 2 plus 1% O 2 in 1982e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphate sprays improved firmness retention of apples stored in either 5% CO 2 plus 3% O 2 or 0.7% CO 2 plus 1% O 2 in 1982”
Claim · model-written summary
Phosphate sprays maintained firmness during simulated shelf life at 20 °C after apple storage at 0 °C.
- Taxon
- applesMalus domesticae0
- Treatment
- Phosphate sprayse1
- Outcome
- fruit firmnesse0
- Direction
- maintainede0
- Qualifier
- during a simulated shelf life at 20 °C for apples stored at 0 °Ce0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maintained fruit firmness during a simulated shelf life at 20 °C for apples stored at 0 °C”
e1“Phosphate sprays improved firmness retention of apples”
Claim · model-written summary
Monobasic ammonium phosphate improved 1983 apple firmness retention at 20 °C regardless of storage temperature.
- Taxon
- applesMalus domesticae1
- Treatment
- monobasic ammonium phosphatee0
- Outcome
- Firmness retentione0
- Direction
- improvede0
- Qualifier
- regardless of storage temperaturee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Firmness retention at 20 °C of the 1983 crop was improved by monobasic ammonium phosphate regardless of storage temperature”
e1“Phosphate sprays improved firmness retention of apples”
Claim · model-written summary
Unsprayed control apples contained mean phosphorus of 85.4 ppm fresh weight in 1982.
- Taxon
- AppleMalus domesticae0
- Outcome
- mean phosphorus concentrationse0
- Value
- 85.4e0
- Qualifier
- in 1982 and 1983, respectively (whole fruit less seeds and stems)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apple samples from unsprayed control trees had mean phosphorus concentrations of 85.4 and 94.4 ppm fresh weight in 1982 and 1983, respectively (whole fruit less seeds and stems)”
Claim · model-written summary
Unsprayed control apples contained mean phosphorus of 94.4 ppm fresh weight in 1983.
- Taxon
- AppleMalus domesticae0
- Outcome
- mean phosphorus concentrationse0
- Value
- 94.4 ppm fresh weighte0
- Qualifier
- in 1982 and 1983, respectively (whole fruit less seeds and stems)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apple samples from unsprayed control trees had mean phosphorus concentrations of 85.4 and 94.4 ppm fresh weight in 1982 and 1983, respectively (whole fruit less seeds and stems)”
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See all 107 papers →phosphorus · quality: postharvest · Malus domestica (apple)Results agree
1 paper in the same direction as this paper
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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.