Paper · 2020 · International Journal of Current Microbiology and Applied Sciences

Effect of Zinc Sulphate on Vegetative Growth, Yield and Leaf Nutrient Status of Guava (Psidium guajava L.)

Brijpal Bisen; J. P. Tiwari; K. K. Mishra; et al.

9
claims
18
verbatim quotes
6
citations
1
research areas
✓
Open access

Abstract

Two year old guava trees cv. Pant Prabhat were sprayed with zinc sulphate (0, 0.2, 0.4 and 0.6 %) First spray was applied in June and second in September only on fifty per cent of the trees. The number of foliar sprays and various concentrations of zinc sulphate did not affect the tree height, tree canopy, trunk diameter and tree volume. However, maximum increase in shoot length was observed with 0.6 per cent zinc sulphate. The minimum flower and fruit drop with maximum number of fruits per tree, fruit weight per tree and yield per ha was observed with double spray of zinc sulphate (0.6 %). The leaf N (1.091 %) and Zn (139.29 ppm) contents were found maximum with 0.6 per cent zinc sulphate while, leaf K (0.434 %) was found maximum with 0.4 per cent zinc sulphate. The leaf phosphorus content reduced with the increase in the concentration of zinc while leaf Ca + Mg remained unaffected.

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 9

Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Spray number and concentration did not affect tree height, canopy, trunk diameter or volume.

Treatment
foliar sprayse0
Outcome
tree height, tree canopy, trunk diameter and tree volumee0
Direction
did not affecte0

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 number of foliar sprays and various concentrations of zinc sulphate did not affect the tree height, tree canopy, trunk diameter and tree volume.”

✓ located verbatim in the source · abstract, characters 191–339 · show in text ↑
t0

“Guava (Psidium guajava L.)”

✓ located verbatim in the source · title, characters 80–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Shoot length increased most with 0.6 per cent zinc sulphate.

Treatment
0.6 per cent zinc sulphatee0
Outcome
shoot lengthe0
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 shoot length was observed with 0.6 per cent zinc sulphate”

✓ located verbatim in the source · abstract, characters 349–426 · show in text ↑
t0

“Guava (Psidium guajava L.)”

✓ located verbatim in the source · title, characters 80–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Double spray of 0.6 % zinc sulphate minimized flower drop.

Treatment
double spray of zinc sulphate (0.6 %)e0
Outcome
flower and fruit drope0
Direction
minimume0

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 minimum flower and fruit drop with maximum number of fruits per tree, fruit weight per tree and yield per ha was observed with double spray of zinc sulphate (0.6 %).”

✓ located verbatim in the source · abstract, characters 428–597 · show in text ↑
t0

“Guava (Psidium guajava L.)”

✓ located verbatim in the source · title, characters 80–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Double spray of 0.6 % zinc sulphate maximized fruit number, fruit weight and yield.

Treatment
double spray of zinc sulphate (0.6 %)e0
Outcome
number of fruits per tree, fruit weight per tree and yield per hae0
Direction
maximume0

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 minimum flower and fruit drop with maximum number of fruits per tree, fruit weight per tree and yield per ha was observed with double spray of zinc sulphate (0.6 %).”

✓ located verbatim in the source · abstract, characters 428–597 · show in text ↑
t0

“Guava (Psidium guajava L.)”

✓ located verbatim in the source · title, characters 80–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Leaf N content was highest at 0.6 per cent zinc sulphate, at 1.091 %.

Treatment
0.6 per cent zinc sulphatee0
Outcome
leaf Ne0
Direction
maximume0
Value
1.091 %e0

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 leaf N (1.091 %) and Zn (139.29 ppm) contents were found maximum with 0.6 per cent zinc sulphate”

✓ located verbatim in the source · abstract, characters 598–698 · show in text ↑
t0

“Guava (Psidium guajava L.)”

✓ located verbatim in the source · title, characters 80–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Leaf Zn content was highest at 0.6 per cent zinc sulphate, at 139.29 ppm.

Treatment
0.6 per cent zinc sulphatee0
Outcome
Zne0
Direction
maximume0
Value
139.29 ppme0

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 leaf N (1.091 %) and Zn (139.29 ppm) contents were found maximum with 0.6 per cent zinc sulphate”

✓ located verbatim in the source · abstract, characters 598–698 · show in text ↑
t0

“Guava (Psidium guajava L.)”

✓ located verbatim in the source · title, characters 80–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Leaf K was highest at 0.4 per cent zinc sulphate, at 0.434 %.

Treatment
0.4 per cent zinc sulphatee0
Outcome
leaf Ke0
Direction
maximume0
Value
0.434 %e0

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

“leaf K (0.434 %) was found maximum with 0.4 per cent zinc sulphate”

✓ located verbatim in the source · abstract, characters 706–772 · show in text ↑
t0

“Guava (Psidium guajava L.)”

✓ located verbatim in the source · title, characters 80–106 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Leaf phosphorus fell with rising zinc concentration.

Treatment
increase in the concentration of zince0
Outcome
leaf phosphorus contente0
Direction
reducede0

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 leaf phosphorus content reduced with the increase in the concentration of zinc”

✓ located verbatim in the source · abstract, characters 774–856 · show in text ↑
t0

“Guava (Psidium guajava L.)”

✓ located verbatim in the source · title, characters 80–106 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Leaf Ca + Mg was unaffected.

Outcome
leaf Ca + Mge0
Direction
remained unaffectede0

Not reportedTreatmentComparator

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

“leaf Ca + Mg remained unaffected”

✓ located verbatim in the source · abstract, characters 863–895 · show in text ↑
t0

“Guava (Psidium guajava L.)”

✓ located verbatim in the source · title, characters 80–106 · show in text ↑

zinc sulfate · growth · Psidium guajava (guava)Positive and negative results

16 papers: 15 positive, 1 negative or no effect

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

  1. no effect
  2. positive
  3. positive

12 papers more in this group

See all 16 papers →

zinc atom · nutrient: content · 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 →

zinc sulfate · nutrient: content · Psidium guajava (guava)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

2 papers more in this group

See all 6 papers →

zinc sulfate · yield · Psidium guajava (guava)Results agree

37 papers: 37 positive, 0 negative or no effect

36 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

33 papers more in this group

See all 37 papers →

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

29 papers: 28 positive, 1 negative or no effect

28 in the opposite direction

  1. positive
  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.