Paper · 1994 · HortScience

144 INFLUENCE OF ROOTSTOCKS AND CALCIUM SPRAY RATES, TIMING,AND MATERIALS ON SPRAY INJURY AND FRUIT QUALITY OF `DELICIOUS' APPLES

J. Thomas Raese; S. R. Drake

14
claims
29
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

Sprays of calcium materials were applied at high volume rates (620 g Ca/400 liters) with a handgun during early June, late June, and mid-July versus mid-July, early August, and late August for five years, 1985 to 1989. Leaf injury was most severe for the late sprays but no spray injury was observed on the fruit surfaces. Bitter pit was markedly reduced with all sprays except CaSO 4 . In some years, bitter pit was controlled better with the early sprays. Either early or late sprays improved fruit quality including overall appearance, reduced scald development, improved red color of the skin, increased fruit firmness and reduced incidence of bitter pit in cold air (0°C) storage. Soluble solids and acidity in the fruit was not affected by calcium sprays. Leaf Ca was higher from the late spray applications than from the earlier applications. All calcium chloride spray materials resulted in increased fruit peel and cortex Ca. Calcium nitrate sprays tended to increase fruit nitrogen concentrations leading to undesirable higher N:Ca ratios in the fruit.

Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 14

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium sprays markedly reduced bitter pit, except CaSO4.

Taxon
APPLESt0
Treatment
Sprays of calcium materialse0
Outcome
Bitter pite2
Direction
reducede2
Qualifier
with all sprays except CaSO 4e2

Not reportedComparator

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e0

“Sprays of calcium materials were applied at high volume rates (620 g Ca/400 liters) with a handgun during early June, late June, and mid-July versus mid-July, early August, and late August for five years, 1985 to 1989”

✓ located verbatim in the source · abstract, characters 0–217 · show in text ↑
e2

“Bitter pit was markedly reduced with all sprays except CaSO 4”

✓ located verbatim in the source · abstract, characters 323–384 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Late calcium sprays caused the most leaf injury.

Taxon
APPLESt0
Treatment
late sprayse1
Outcome
Leaf injurye1
Direction
higherinferrede1

Not reportedComparator

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e1

“Leaf injury was most severe for the late sprays but no spray injury was observed on the fruit surfaces”

✓ located verbatim in the source · abstract, characters 219–321 · show in text ↑
Observationobservedoriginal resultno effectmeasured

Claim · model-written summary

Calcium sprays caused no spray injury on the fruit surfaces.

Taxon
APPLESt0
Outcome
spray injurye1
Qualifier
no spray injury was observed on the fruit surfacese1

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e1

“Leaf injury was most severe for the late sprays but no spray injury was observed on the fruit surfaces”

✓ located verbatim in the source · abstract, characters 219–321 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Early calcium sprays controlled bitter pit better in some years.

Taxon
APPLESt0
Treatment
early sprayse3
Outcome
bitter pite3
Direction
bettere3
Qualifier
In some yearse3

Not reportedComparator

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e3

“In some years, bitter pit was controlled better with the early sprays”

✓ located verbatim in the source · abstract, characters 387–456 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Either early or late calcium sprays improved overall fruit appearance.

Taxon
APPLESt0
Treatment
Either early or late sprayse4
Outcome
overall appearancee4
Direction
improvede4

Not reportedComparator

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e4

“Either early or late sprays improved fruit quality including overall appearance, reduced scald development, improved red color of the skin, increased fruit firmness and reduced incidence of bitter pit in cold air (0°C) storage”

✓ located verbatim in the source · abstract, characters 458–684 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Either early or late calcium sprays improved fruit red skin colour.

Taxon
APPLESt0
Treatment
Either early or late sprayse4
Outcome
red color of the skine4
Direction
improvede4

Not reportedComparator

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e4

“Either early or late sprays improved fruit quality including overall appearance, reduced scald development, improved red color of the skin, increased fruit firmness and reduced incidence of bitter pit in cold air (0°C) storage”

✓ located verbatim in the source · abstract, characters 458–684 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Either early or late calcium sprays reduced scald development.

Taxon
APPLESt0
Treatment
Either early or late sprayse4
Outcome
scald developmente4
Direction
reducede4

Not reportedComparator

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e4

“Either early or late sprays improved fruit quality including overall appearance, reduced scald development, improved red color of the skin, increased fruit firmness and reduced incidence of bitter pit in cold air (0°C) storage”

✓ located verbatim in the source · abstract, characters 458–684 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Either early or late calcium sprays increased fruit firmness.

Taxon
APPLESt0
Treatment
Either early or late sprayse4
Outcome
fruit firmnesse4
Direction
increasede4

Not reportedComparator

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e4

“Either early or late sprays improved fruit quality including overall appearance, reduced scald development, improved red color of the skin, increased fruit firmness and reduced incidence of bitter pit in cold air (0°C) storage”

✓ located verbatim in the source · abstract, characters 458–684 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Either early or late calcium sprays reduced bitter pit incidence in cold storage.

Taxon
APPLESt0
Treatment
Either early or late sprayse4
Outcome
incidence of bitter pite4
Direction
reducede4
Qualifier
in cold air (0°C) storagee4

Not reportedComparator

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e4

“Either early or late sprays improved fruit quality including overall appearance, reduced scald development, improved red color of the skin, increased fruit firmness and reduced incidence of bitter pit in cold air (0°C) storage”

✓ located verbatim in the source · abstract, characters 458–684 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Soluble solids and acidity in the fruit were not affected by calcium sprays.

Taxon
APPLESt0
Treatment
calcium sprayse5
Outcome
Soluble solids and aciditye5
Direction
no_changeinferrede5
Qualifier
not affectede5

Not reportedComparator

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e5

“Soluble solids and acidity in the fruit was not affected by calcium sprays”

✓ located verbatim in the source · abstract, characters 686–760 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Leaf calcium was higher from late spray applications than from earlier applications.

Taxon
APPLESt0
Treatment
late spray applicationse6
Outcome
Leaf Cae6
Direction
highere6
Comparator
the earlier applicationse6

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e6

“Leaf Ca was higher from the late spray applications than from the earlier applications”

✓ located verbatim in the source · abstract, characters 762–848 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Calcium chloride spray materials increased fruit peel and cortex calcium.

Taxon
APPLESt0
Treatment
calcium chloride spray materialse7
Outcome
fruit peel and cortex Cae7
Direction
increasede7

Not reportedComparator

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e7

“All calcium chloride spray materials resulted in increased fruit peel and cortex Ca”

✓ located verbatim in the source · abstract, characters 850–933 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Calcium nitrate sprays tended to increase fruit nitrogen concentrations.

Taxon
APPLESt0
Treatment
Calcium nitrate sprayse5
Outcome
fruit nitrogen concentrationse5
Direction
increasee5
Qualifier
tended toe5

Not reportedComparator

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e5

“Calcium nitrate sprays tended to increase fruit nitrogen concentrations leading to undesirable higher N:Ca ratios in the fruit”

✓ located verbatim in the source · abstract, characters 935–1061 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Calcium nitrate sprays led to undesirable higher fruit N:Ca ratios.

Taxon
APPLESt0
Treatment
Calcium nitrate sprayse5
Outcome
N:Ca ratiose5
Direction
highere5
Qualifier
undesirablee5

Not reportedComparator

Verbatim

t0

“`DELICIOUS' APPLES”

✓ located verbatim in the source · title, characters 111–129 · show in text ↑
e5

“Calcium nitrate sprays tended to increase fruit nitrogen concentrations leading to undesirable higher N:Ca ratios in the fruit”

✓ located verbatim in the source · abstract, characters 935–1061 · show in text ↑

calcium nitrate · nutrient: content · Malus domestica (apple)Results differ

13 papers: 10 positive, 3 negative or no effect

2 papers in the same direction as this paper · 10 in the opposite direction

  1. positive
  2. positive
  3. positive

9 papers more in this group

See all 13 papers →

calcium atom · quality: sugar starch · Malus domestica (apple)Results differ

20 papers: 10 positive, 10 negative or no effect

9 papers in the same direction as this paper · 10 in the opposite direction

  1. positive
  2. positive
  3. positive

16 papers more in this group

See all 20 papers →

calcium chloride dihydrate · nutrient: content · Malus domestica (apple)Positive and negative results

32 papers: 25 positive, 7 negative or no effect

24 papers in the same direction as this paper · 7 in the opposite direction

  1. negative
  2. negative
  3. no effect

28 papers more in this group

See all 32 papers →

application · crop injury · Malus domestica (apple)Positive and negative results

25 papers: 7 positive, 18 negative or no effect

17 papers in the same direction as this paper · 7 in the opposite direction

  1. positive
  2. positive
  3. positive

21 papers more in this group

See all 25 papers →

application · quality: sugar starch · Malus domestica (apple)Positive and negative results

49 papers: 29 positive, 20 negative or no effect

19 papers in the same direction as this paper · 29 in the opposite direction

  1. positive
  2. positive
  3. positive

45 papers more in this group

See all 49 papers →

application · quality: postharvest · Malus domestica (apple)Positive and negative results

74 papers: 58 positive, 16 negative or no effect

57 papers in the same direction as this paper · 15 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

70 papers more in this group

See all 74 papers →

application · disease · Malus domestica (apple)Positive and negative results

107 papers: 80 positive, 27 negative or no effect

79 papers in the same direction as this paper · 26 in the opposite direction · 1 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

103 papers more in this group

See all 107 papers →

application · growth · Malus domestica (apple)Positive and negative results

107 papers: 76 positive, 31 negative or no effect

75 papers in the same direction as this paper · 31 in the opposite direction

  1. no effect
  2. no effect
  3. no effect

103 papers more in this group

See all 107 papers →

8 of 9 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.

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.