Paper · 1970 · Journal of the Japanese Society for Horticultural Science

Some effects of iron spray on growth, yield and quality of guava fruits (Psidium guajava L.)

J. S. ARORA; J. R. SINGH

7
claims
14
verbatim quotes
6
citations
3
research areas
✓
Open access

Abstract

The guava trees were sprayed with 0.0%, 0.2% and 0.4% iron sulphate in July 1966 and 1967. It was observed that iron spray in 0.2% and 0.4% concentrations was highly capable to cause significant increase in various characters. The maximum increase in extension of terminal shoots, number of leaves, leaf area per shoot, chlorophyll recovery and yield was observed under 0.4% spray. Maximum increase in fruit weight, length and diametre was noted under 0.2%. Maximum effect of acidity, non reducing sugars and Vit. C was exhibited under 0.4% while reducing sugars and T.S.S. were affected with 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 7

Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Iron spray at 0.2% and 0.4% significantly increased various guava traits.

Treatment
iron spray in 0.2% and 0.4% concentrationse0
Outcome
various characterse0
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

“iron spray in 0.2% and 0.4% concentrations was highly capable to cause significant increase in various characters”

✓ located verbatim in the source · abstract, characters 112–225 · show in text ↑
t0

“guava fruits”

✓ located verbatim in the source · title, characters 59–71 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 0.4% iron spray gave the maximum increase in shoot extension, leaf number, and leaf area per shoot.

Treatment
0.4% spraye0
Outcome
extension of terminal shoots, number of leaves, leaf area per shoote0
Direction
maximum 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

“The maximum increase in extension of terminal shoots, number of leaves, leaf area per shoot, chlorophyll recovery and yield was observed under 0.4% spray”

✓ located verbatim in the source · abstract, characters 227–380 · show in text ↑
t0

“guava fruits”

✓ located verbatim in the source · title, characters 59–71 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 0.4% iron spray gave the maximum chlorophyll recovery.

Treatment
0.4% spraye0
Outcome
chlorophyll recoverye0
Direction
maximum 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

“The maximum increase in extension of terminal shoots, number of leaves, leaf area per shoot, chlorophyll recovery and yield was observed under 0.4% spray”

✓ located verbatim in the source · abstract, characters 227–380 · show in text ↑
t0

“guava fruits”

✓ located verbatim in the source · title, characters 59–71 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 0.4% iron spray gave the maximum yield increase.

Treatment
0.4% spraye0
Outcome
yielde0
Direction
maximum 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

“The maximum increase in extension of terminal shoots, number of leaves, leaf area per shoot, chlorophyll recovery and yield was observed under 0.4% spray”

✓ located verbatim in the source · abstract, characters 227–380 · show in text ↑
t0

“guava fruits”

✓ located verbatim in the source · title, characters 59–71 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

A 0.2% iron spray gave the maximum increase in fruit weight, length, and diameter.

Treatment
0.2%e0
Outcome
fruit weight, length and diametree0
Direction
Maximum 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

“Maximum increase in fruit weight, length and diametre was noted under 0.2%”

✓ located verbatim in the source · abstract, characters 382–456 · show in text ↑
t0

“guava fruits”

✓ located verbatim in the source · title, characters 59–71 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

A 0.4% iron spray had the maximum effect on acidity, nonreducing sugars, and vitamin C.

Treatment
0.4%e0
Outcome
acidity, non reducing sugars and Vit. Ce0
Direction
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

“Maximum effect of acidity, non reducing sugars and Vit. C was exhibited under 0.4%”

✓ located verbatim in the source · abstract, characters 458–540 · show in text ↑
t0

“guava fruits”

✓ located verbatim in the source · title, characters 59–71 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

A 0.2% iron spray affected reducing sugars and total soluble solids.

Treatment
0.2% spraye0
Outcome
reducing sugars and T.S.S.e0

Not reportedComparatorDirection

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

“reducing sugars and T.S.S. were affected with 0.2% spray”

✓ located verbatim in the source · abstract, characters 547–603 · show in text ↑
t0

“guava fruits”

✓ located verbatim in the source · title, characters 59–71 · show in text ↑

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. no effect
  2. positive
  3. positive

25 papers more in this group

See all 29 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.