Paper · 1972 · Journal of the Japanese Society for Horticultural Science

Responses of Guava (Psidium guajava L.) to Boron Spray

J. R. SINGH; J. S. ARORA

10
claims
26
verbatim quotes
4
citations
4
research areas
✓
Open access

Abstract

The effects of three concentrations i.e., 0.0%, 0.1% and 0.2% of boron sprayed on guava variety‘Allahabad Safeda’in the form of boric acid were studied in Horticultural Garden, College of Agriculture, Banaras Hindu University, during 1966-1968.Highly significant increase in extension of terminal shoot, number of leaves, leaf area per shoot and significant reduction in leaf chlorosis were recorded under 0.2% and 0.1% respectively. Significant earliness in fruit maturity and increase in yield were recorded with boron spray. The physico-chemical composition of fruits markedly improved but only fruit weight and Vit.‘C’were significantly increased at harvest. The maximum effect was exhibited by 0.1% spray.Chemical analysis for different nutrients reflected the better balance of constituents in the leaves. There was increase in boron content, dry weight, ash and phosphorus with boron spraying and 0.2% spray gave maximum effect. Potassium content was unaffected with boron treatment. Marked reduction in nitrogen and carbohydrate content was recorded and maximum was exhibited under 0.2% spray.

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 10

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Boron spray increased shoot extension, leaf number and leaf area.

Treatment
boron spraye2
Outcome
extension of terminal shoot, number of leaves, leaf area per shoote0
Direction
increasee0
Qualifier
0.2% and 0.1% respectivelye1

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Highly significant increase in extension of terminal shoot, number of leaves, leaf area per shoot”

✓ located verbatim in the source · abstract, characters 244–341 · show in text ↑
e1

“0.2% and 0.1% respectively”

✓ located verbatim in the source · abstract, characters 406–432 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 13–18 · show in text ↑
e2

“The effects of three concentrations i.e., 0.0%, 0.1% and 0.2% of boron sprayed on guava”

✓ located verbatim in the source · abstract, characters 0–87 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Boron spray reduced leaf chlorosis.

Treatment
boron spraye1
Outcome
leaf chlorosise0
Direction
reductione0
Qualifier
0.2% and 0.1% respectivelye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“significant reduction in leaf chlorosis were recorded under 0.2% and 0.1% respectively”

✓ located verbatim in the source · abstract, characters 346–432 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 13–18 · show in text ↑
e1

“The effects of three concentrations i.e., 0.0%, 0.1% and 0.2% of boron sprayed on guava”

✓ located verbatim in the source · abstract, characters 0–87 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Boron spray advanced fruit maturity.

Treatment
boron spraye0
Outcome
fruit maturitye0
Direction
earlinesse0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Significant earliness in fruit maturity and increase in yield were recorded with boron spray”

✓ located verbatim in the source · abstract, characters 434–526 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 13–18 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Boron spray increased yield.

Treatment
boron spraye0
Outcome
yielde0
Direction
increasee0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Significant earliness in fruit maturity and increase in yield were recorded with boron spray”

✓ located verbatim in the source · abstract, characters 434–526 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 13–18 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Fruit weight increased significantly at harvest.

Treatment
boron spraye1
Outcome
fruit weighte0
Direction
increasede0
Qualifier
at harveste0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“only fruit weight and Vit.‘C’were significantly increased at harvest”

✓ located verbatim in the source · abstract, characters 593–661 · show in text ↑
e1

“The effects of three concentrations i.e., 0.0%, 0.1% and 0.2% of boron sprayed on guava”

✓ located verbatim in the source · abstract, characters 0–87 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 13–18 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Fruit vitamin C increased significantly at harvest.

Treatment
boron spraye1
Outcome
Vit.‘C’e0
Direction
increasede0
Qualifier
at harveste0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“only fruit weight and Vit.‘C’were significantly increased at harvest”

✓ located verbatim in the source · abstract, characters 593–661 · show in text ↑
e1

“The effects of three concentrations i.e., 0.0%, 0.1% and 0.2% of boron sprayed on guava”

✓ located verbatim in the source · abstract, characters 0–87 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 13–18 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The 0.1% spray had the maximum reported effect on fruit composition.

Treatment
0.1% spraye0
Outcome
physico-chemical composition of fruitse0
Direction
maximume0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“The physico-chemical composition of fruits markedly improved but only fruit weight and Vit.‘C’were significantly increased at harvest. The maximum effect was exhibited by 0.1% spray”

✓ located verbatim in the source · abstract, characters 528–709 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 13–18 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Boron spraying increased leaf boron content, dry weight, ash and phosphorus.

Treatment
boron sprayinge0
Outcome
boron content, dry weight, ash and phosphoruse0
Direction
increasee0
Qualifier
0.2% spray gave maximum effecte0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“There was increase in boron content, dry weight, ash and phosphorus with boron spraying and 0.2% spray gave maximum effect”

✓ located verbatim in the source · abstract, characters 812–934 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 13–18 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Boron treatment did not alter potassium content.

Treatment
boron treatmente0
Outcome
Potassium contente0
Direction
unaffectede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Potassium content was unaffected with boron treatment”

✓ located verbatim in the source · abstract, characters 936–989 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 13–18 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Boron spray reduced leaf nitrogen and carbohydrate contents, most at 0.2%.

Treatment
boron sprayinge1
Outcome
nitrogen and carbohydrate contente0
Direction
reductione0
Qualifier
maximum was exhibited under 0.2% spraye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Psidium guajava
Psidium guajava · TaxonFuadsyazwan ( talk ) · Public domain · Wikimedia Commons ↗

Verbatim

e0

“Marked reduction in nitrogen and carbohydrate content was recorded and maximum was exhibited under 0.2% spray”

✓ located verbatim in the source · abstract, characters 991–1100 · show in text ↑
t0

“Guava”

✓ located verbatim in the source · title, characters 13–18 · show in text ↑
e1

“boron spraying”

✓ located verbatim in the source · abstract, characters 885–899 · show in text ↑

boron atom · nutrient: content · Psidium guajava (guava)Positive and negative results

3 papers: 2 positive, 1 negative or no effect

2 in the opposite direction

  1. positive
  2. positive
See all 3 papers →

boron atom · yield · Psidium guajava (guava)Positive and negative results

10 papers: 9 positive, 1 negative or no effect

8 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

6 papers more in this group

See all 10 papers →

boron atom · phenology · Psidium guajava (guava)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 papers →

boron atom · growth · Psidium guajava (guava)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

application · physiology: pigments · Psidium guajava (guava)Positive and negative results

9 papers: 8 positive, 1 negative or no effect

7 papers in the same direction as this paper · 1 in the opposite direction

  1. no effect
  2. positive
  3. positive

5 papers more in this group

See all 9 papers →

application · growth · Psidium guajava (guava)Positive and negative results

29 papers: 28 positive, 1 negative or no effect

27 papers in the same direction as this paper · 1 in the opposite direction

  1. positive
  2. no effect
  3. positive

25 papers more in this group

See all 29 papers →

application · phenology · Psidium guajava (guava)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

1 paper more in this group

See all 5 papers →

application · yield · Psidium guajava (guava)Results agree

62 papers: 62 positive, 0 negative or no effect

61 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

58 papers more in this group

See all 62 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.