Effect of foliar spray of zinc and boron on plant growth, yield and quality of guava (Psidium guajava L.) cv. Allahabad safeda under high density planting in Prayagraj region

Abstract

An experiment was conducted at the central research farm, Department of Horticulture, Naini Agricultural Institute, Sam Higginbottom University of Agriculture Technology and Science, Prayagraj during (July-December 2019). A high analysis of variance revealed significant differences among trail studies, suggesting sufficient variability for growth, yield and quality of guava. The results revealed that maximum plant height (295.17 cm), number of branches (8.20), no of leaf per shoot (26.38), no of fruits per plant (194.33), fruits weight (226.10g), fruits yield per plant (49.78 kg/tree), acidity (0.40%), ascorbic acid (192.80 mg/100g), total soluble solid (12.63 0Brix), and sugar (8.15%) were recorded in T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %) followed by T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %). The least values were recorded in the control. The present study indicated that combined application of micronutrients enhanced fruit set, minimized fruit drop and overall yield. This has resulted in improved sensory characters in the guava fruit.

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Claims 15

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the maximum plant height of 295.17 cm in guava, followed by T8.

Taxon: guavaPsidium guajavat0
Treatment: T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %)e0
Outcome: plant heighte0
Direction: maximume0
Value: 295.17 cme0
Comparator: T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %)e0

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

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

Verbatim

e0
“The results revealed that maximum plant height (295.17 cm), number of branches (8.20), no of leaf per shoot (26.38), no of fruits per plant (194.33), fruits weight (226.10g), fruits yield per plant (49.78 kg/tree), acidity (0.40%), ascorbic acid (192.80 mg/100g), total soluble solid (12.63 0Brix), and sugar (8.15%) were recorded in T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %) followed by T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %).”
✓ located verbatim in the source · abstract, characters 378–803 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the maximum number of branches of 8.20 in guava, followed by T8.

Taxon: guavaPsidium guajavat0
Treatment: T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %)e0
Outcome: number of branchese0
Direction: maximume0
Value: 8.20e0
Comparator: T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %)e0

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

Verbatim

e0
“The results revealed that maximum plant height (295.17 cm), number of branches (8.20), no of leaf per shoot (26.38), no of fruits per plant (194.33), fruits weight (226.10g), fruits yield per plant (49.78 kg/tree), acidity (0.40%), ascorbic acid (192.80 mg/100g), total soluble solid (12.63 0Brix), and sugar (8.15%) were recorded in T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %) followed by T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %).”
✓ located verbatim in the source · abstract, characters 378–803 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the maximum no of leaf per shoot of 26.38 in guava, followed by T8.

Taxon: guavaPsidium guajavat0
Treatment: T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %)e0
Outcome: no of leaf per shoote0
Direction: maximume0
Value: 26.38e0
Comparator: T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %)e0

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

Verbatim

e0
“The results revealed that maximum plant height (295.17 cm), number of branches (8.20), no of leaf per shoot (26.38), no of fruits per plant (194.33), fruits weight (226.10g), fruits yield per plant (49.78 kg/tree), acidity (0.40%), ascorbic acid (192.80 mg/100g), total soluble solid (12.63 0Brix), and sugar (8.15%) were recorded in T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %) followed by T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %).”
✓ located verbatim in the source · abstract, characters 378–803 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the maximum no of fruits per plant of 194.33 in guava, followed by T8.

Taxon: guavaPsidium guajavat0
Treatment: T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %)e0
Outcome: no of fruits per plante0
Direction: maximume0
Value: 194.33e0
Comparator: T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %)e0

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

Verbatim

e0
“The results revealed that maximum plant height (295.17 cm), number of branches (8.20), no of leaf per shoot (26.38), no of fruits per plant (194.33), fruits weight (226.10g), fruits yield per plant (49.78 kg/tree), acidity (0.40%), ascorbic acid (192.80 mg/100g), total soluble solid (12.63 0Brix), and sugar (8.15%) were recorded in T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %) followed by T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %).”
✓ located verbatim in the source · abstract, characters 378–803 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the maximum fruits weight of 226.10g in guava, followed by T8.

Taxon: guavaPsidium guajavat0
Treatment: T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %)e0
Outcome: fruits weighte0
Direction: maximume0
Value: 226.10ge0
Comparator: T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %)e0

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

Verbatim

e0
“The results revealed that maximum plant height (295.17 cm), number of branches (8.20), no of leaf per shoot (26.38), no of fruits per plant (194.33), fruits weight (226.10g), fruits yield per plant (49.78 kg/tree), acidity (0.40%), ascorbic acid (192.80 mg/100g), total soluble solid (12.63 0Brix), and sugar (8.15%) were recorded in T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %) followed by T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %).”
✓ located verbatim in the source · abstract, characters 378–803 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the maximum fruits yield per plant of 49.78 kg/tree in guava, followed by T8.

Taxon: guavaPsidium guajavat0
Treatment: T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %)e0
Outcome: fruits yield per plante0
Direction: maximume0
Value: 49.78 kg/treee0
Comparator: T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %)e0

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

Verbatim

e0
“The results revealed that maximum plant height (295.17 cm), number of branches (8.20), no of leaf per shoot (26.38), no of fruits per plant (194.33), fruits weight (226.10g), fruits yield per plant (49.78 kg/tree), acidity (0.40%), ascorbic acid (192.80 mg/100g), total soluble solid (12.63 0Brix), and sugar (8.15%) were recorded in T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %) followed by T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %).”
✓ located verbatim in the source · abstract, characters 378–803 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the maximum acidity of 0.40% in guava, followed by T8.

Taxon: guavaPsidium guajavat0
Treatment: T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %)e0
Outcome: aciditye0
Direction: maximume0
Value: 0.40%e0
Comparator: T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %)e0

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

Verbatim

e0
“The results revealed that maximum plant height (295.17 cm), number of branches (8.20), no of leaf per shoot (26.38), no of fruits per plant (194.33), fruits weight (226.10g), fruits yield per plant (49.78 kg/tree), acidity (0.40%), ascorbic acid (192.80 mg/100g), total soluble solid (12.63 0Brix), and sugar (8.15%) were recorded in T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %) followed by T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %).”
✓ located verbatim in the source · abstract, characters 378–803 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the maximum ascorbic acid of 192.80 mg/100g in guava, followed by T8.

Taxon: guavaPsidium guajavat0
Treatment: T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %)e0
Outcome: ascorbic acide0
Direction: maximume0
Value: 192.80 mg/100ge0
Comparator: T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %)e0

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

Verbatim

e0
“The results revealed that maximum plant height (295.17 cm), number of branches (8.20), no of leaf per shoot (26.38), no of fruits per plant (194.33), fruits weight (226.10g), fruits yield per plant (49.78 kg/tree), acidity (0.40%), ascorbic acid (192.80 mg/100g), total soluble solid (12.63 0Brix), and sugar (8.15%) were recorded in T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %) followed by T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %).”
✓ located verbatim in the source · abstract, characters 378–803 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the maximum total soluble solid of 12.63 0Brix in guava, followed by T8.

Taxon: guavaPsidium guajavat0
Treatment: T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %)e0
Outcome: total soluble solide0
Direction: maximume0
Value: 12.63 0Brixe0
Comparator: T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %)e0

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

Verbatim

e0
“The results revealed that maximum plant height (295.17 cm), number of branches (8.20), no of leaf per shoot (26.38), no of fruits per plant (194.33), fruits weight (226.10g), fruits yield per plant (49.78 kg/tree), acidity (0.40%), ascorbic acid (192.80 mg/100g), total soluble solid (12.63 0Brix), and sugar (8.15%) were recorded in T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %) followed by T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %).”
✓ located verbatim in the source · abstract, characters 378–803 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T9 gave the maximum sugar of 8.15% in guava, followed by T8.

Taxon: guavaPsidium guajavat0
Treatment: T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %)e0
Outcome: sugare0
Direction: maximume0
Value: 8.15%e0
Comparator: T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %)e0

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

Verbatim

e0
“The results revealed that maximum plant height (295.17 cm), number of branches (8.20), no of leaf per shoot (26.38), no of fruits per plant (194.33), fruits weight (226.10g), fruits yield per plant (49.78 kg/tree), acidity (0.40%), ascorbic acid (192.80 mg/100g), total soluble solid (12.63 0Brix), and sugar (8.15%) were recorded in T9 (ZnSO4 @ 0.6 % & Boric acid @ 0.5 %) followed by T8 (ZnSO4 @ 0.6 % & Boric acid@ 0.3 %).”
✓ located verbatim in the source · abstract, characters 378–803 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Observationobservedoriginal resultmeasured

Claim · model-written summary

The control gave the least values for the measured guava growth, yield and quality traits.

Taxon: guavaPsidium guajavat0
Outcome: least valuese0
Direction: leaste0

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

Verbatim

e0
“The least values were recorded in the control.”
✓ located verbatim in the source · abstract, characters 804–850 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Combined micronutrients enhanced guava fruit set.

Taxon: guavaPsidium guajavat0
Treatment: combined application of micronutrientse0
Outcome: fruit sete0
Direction: enhancede0

Not reportedComparator

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

Verbatim

e0
“The present study indicated that combined application of micronutrients enhanced fruit set, minimized fruit drop and overall yield.”
✓ located verbatim in the source · abstract, characters 851–982 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Combined micronutrients minimized guava fruit drop.

Taxon: guavaPsidium guajavat0
Treatment: combined application of micronutrientse0
Outcome: fruit drope0
Direction: minimizede0

Not reportedComparator

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

Verbatim

e0
“The present study indicated that combined application of micronutrients enhanced fruit set, minimized fruit drop and overall yield.”
✓ located verbatim in the source · abstract, characters 851–982 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

Combined micronutrients enhanced guava overall yield.

Taxon: guavaPsidium guajavat0
Treatment: combined application of micronutrientse0
Outcome: overall yielde0
Direction: enhancede0

Not reportedComparator

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

Verbatim

e0
“The present study indicated that combined application of micronutrients enhanced fruit set, minimized fruit drop and overall yield.”
✓ located verbatim in the source · abstract, characters 851–982 · show in text ↑

t0
“guava (Psidium guajava L.)”
✓ located verbatim in the source · title, characters 79–105 · show in text ↑

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

The micronutrient treatment improved sensory characters of guava fruit.

Taxon: guavaPsidium guajavae0
Outcome: sensory characterse0
Direction: improvede0

Not reportedTreatmentComparator

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

Verbatim

e0
“This has resulted in improved sensory characters in the guava fruit.”
✓ located verbatim in the source · abstract, characters 983–1051 · 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

no effect
Zinc sulphate 0.4 per cent was at par with boric acid for fruit weight.
Influence of pre-harvest nutrients application on the physico-chemical quality and storage behaviour of guava (Psidium guajava L.) fruit cv. L-49. · 2014 · compared with 0.4 per cent boric acid
Opposite direction
positive
Foliar application of urea (1.0, 1.5 or 2.0 per cent) and zinc sulfate (0.2, 04 and 0.6 per cent) just before blooming significantly improved shoot growth in guava.
Effect of foliar spray of urea and zinc on growth and flowering attributes of guava (Psidium guajava) cv. BHAVNAGAR RED · 2014
Same direction
positive
Shoot length increased most with 0.6 per cent zinc sulphate.
Effect of Zinc Sulphate on Vegetative Growth, Yield and Leaf Nutrient Status of Guava (Psidium guajava L.) · 2020
Same direction

12 papers more in this group

See all 16 papers →

boric acid · quality: phytochemicals · Psidium guajava (guava)Results agree

5 papers: 5 positive, 0 negative or no effect

4 papers in the same direction as this paper

1 paper more in this group

See all 5 papers →

boric acid · growth · Psidium guajava (guava)Results agree

6 papers: 6 positive, 0 negative or no effect

5 papers in the same direction as this paper

positive
Boric acid 0.4 per cent maximized fruit weight.
Influence of pre-harvest nutrients application on the physico-chemical quality and storage behaviour of guava (Psidium guajava L.) fruit cv. L-49. · 2014 · compared with zinc sulphate 0.4 per cent
Same direction
positive
Boric acid plus ZnSO4 at 0.25% each gave the maximum guava tree height increment of 22.07 cm.
Interaction effect of boron and zinc on growth, yield and quality of guava (Psidium gaujava L.) Cv. ‘Lalit’ · 2024
Same direction
positive
The combined spray gave 9.5 leaves increased per shoot.
Foliar Application of Boron and Magnesium on Growth and Quality of Guava (Psidium guajava L.) Teh. Babai · 2024
Same direction

2 papers more in this group

See all 6 papers →

boric acid · quality: sugar starch · Psidium guajava (guava)Results agree

8 papers: 8 positive, 0 negative or no effect

7 papers in the same direction as this paper

positive
The 0.4% calcium chloride plus 0.2% boric acid treatment yielded maximal total soluble solids, ascorbic acid and total sugars.
Response of foliar application of calcium chloride and boric acid on fruit quality and leaf nutrient status of guava · 2017
Same direction
positive
Treatment T5 (boric acid, zinc sulfate and calcium chloride) gave the highest TSS content of guava fruit compared with other treatments.
Effect of foliar micronutrients on the phytochemical composition of the Allahabad Safeda Guava · 2023 · compared with other treatments
Same direction
positive
Under the combined FeSO4, H3BO3 and MgSO4 spray, total soluble solids, TSS acidity ratio and ascorbic acid were maximum in guava fruit.
Influence of foliar application of boron, iron and magnesium on quality attributes and leaf nutrient status of guava cv. Hisar Surkha · 2023
Same direction

4 papers more in this group

See all 8 papers →

boric acid · yield · Psidium guajava (guava)Results agree

10 papers: 10 positive, 0 negative or no effect

9 papers in the same direction as this paper

6 papers more in this group

See all 10 papers →

zinc sulfate · quality: phytochemicals · Psidium guajava (guava)Results agree

10 papers: 10 positive, 0 negative or no effect

9 papers in the same direction as this paper

positive
Zn So4 @ 1.00% spray gave guava Ascorbic acid of 186.67 mg.
Effect of Foliar Application of Zinc and Boron on Fruit Growth, Yield and Quality of Winter Season Guava (Psidium guajava L.) · 2017
Same direction
positive
Two sprays of 0.4% ZnSO4 + 0.2% borax at fruit growth in one-month interval gave the highest ascorbic acid (262.21 mg/100 g) in guava.
Yield sustainability through micronutrient management in Guava · 2024
Same direction
positive
T8 produced maximum ascorbic acid at 204.67 mg/100 gm pulp.
Effect of Foliar Application of Micro Nutrients on Chemical Quality Parameters of Guava (Psidium Guajava L.) · 2019 · compared with T1 (control)
Same direction

6 papers more in this group

See all 10 papers →

zinc sulfate · quality: sugar starch · Psidium guajava (guava)Results agree

23 papers: 23 positive, 0 negative or no effect

22 papers in the same direction as this paper

positive
Zn So4 @ 1.00% spray gave guava total sugar of 6.83%.
Effect of Foliar Application of Zinc and Boron on Fruit Growth, Yield and Quality of Winter Season Guava (Psidium guajava L.) · 2017
Same direction
positive
Zinc sulphate at 0.6 per cent maximally increased total soluble solids and vitamin C.
Effect of foliar feeding of potassium, calcium and zinc on yield and quality of guava · 1991
Same direction
positive
Zinc sulphate at 0.4% significantly improved TSS, total sugars and sugar-acid ratio.
Influence of foliar application of micronutrients on the fruit quality of guava cv. Lucknow-49 · 2010
Same direction

19 papers more in this group

See all 23 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

positive
Foliar 0.8% ZnSO4 gave maximum fruit set of 74.37%.
Effect of foliar spray of nutrients on fruiting and yield attributes of guava (Psidium guajava L.) · 2024
Same directionCites this paper
positive
0.6% zinc sulphate produced 489.69 fruits per plant.
Response of Guava to Foliar Application of Urea and Zinc on Fruit Set, Yield and Quality · 2014
Same direction
positive
Zn So4 @ 0.75% produced higher guava fruit set percentage.
Effect of Foliar Application of Zinc and Boron on Fruit Growth, Yield and Quality of Winter Season Guava (Psidium guajava L.) · 2017 · compared with 0.50% Zn So4
Same direction

33 papers more in this group

See all 37 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.

Abstract

Claims 15

The same questions in other papers

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

boric acid · quality: phytochemicals · Psidium guajava (guava)Results agree

boric acid · growth · Psidium guajava (guava)Results agree

boric acid · quality: sugar starch · Psidium guajava (guava)Results agree

boric acid · yield · Psidium guajava (guava)Results agree

zinc sulfate · quality: phytochemicals · Psidium guajava (guava)Results agree

zinc sulfate · quality: sugar starch · Psidium guajava (guava)Results agree

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