Abstract
The aim of this study was to evaluate the effects of the foliar application of zinc (50 and 100 mg/L) and iron (100 and 200 mg/L) and their combination on vegetative, reproductive growth, fruit quality and yield of tomato plants as a laid out in completely randomized block design with four replications. The results showed that high Zn (100 mg/L) and Fe (200 mg/L) and their combination significantly promoted vegetative and reproductive growth. Foliar application of Zn (100 mg/L) + Fe (200 mg/L) resulted in the maximum plant height (124.14 cm), branches per plant (8.36), flowers per cluster (18.14), fruits per cluster (8), fruits per plant (90.14), fruit weight (95.14 g), chlorophyll content (22.14 SPAD) and yield (25.14 t ha–1). Fe and Zn alone or in combination had significant effect on leaves-NK content and nitrate reductase activity. The highest TSS (5.87 °Brix), TA (4 %), pH (2.61 %), fruit firmness (3.66 kg cm–2) and fruit lycopene content (2.25 mg/100 g) were observed when tomato plants treated with 100 mg/L Zn+200 mg/L Fe, thus it was
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 19
Claim · model-written summary
high Zn (100 mg/L) significantly promoted vegetative and reproductive growth.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- high Zn (100 mg/L)e0
- Outcome
- vegetative and reproductive growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The results showed that high Zn (100 mg/L) and Fe (200 mg/L) and their combination significantly promoted vegetative and reproductive growth.”
t0“tomato”
Claim · model-written summary
Fe (200 mg/L) significantly promoted vegetative and reproductive growth.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Fe (200 mg/L)e0
- Outcome
- vegetative and reproductive growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The results showed that high Zn (100 mg/L) and Fe (200 mg/L) and their combination significantly promoted vegetative and reproductive growth.”
t0“tomato”
Claim · model-written summary
their combination significantly promoted vegetative and reproductive growth.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- their combinatione0
- Outcome
- vegetative and reproductive growthe0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The results showed that high Zn (100 mg/L) and Fe (200 mg/L) and their combination significantly promoted vegetative and reproductive growth.”
t0“tomato”
Claim · model-written summary
Combined foliar Zn and Fe gave maximum plant height of 124.14 cm.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Foliar application of Zn (100 mg/L) + Fe (200 mg/L)e0
- Outcome
- plant heighte0
- Direction
- maximume0
- Value
- 124.14 cme0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Foliar application of Zn (100 mg/L) + Fe (200 mg/L) resulted in the maximum plant height (124.14 cm), branches per plant (8.36), flowers per cluster (18.14), fruits per cluster (8), fruits per plant (90.14), fruit weight (95.14 g), chlorophyll content (22.14 SPAD) and yield (25.14 t ha–1).”
t0“tomato”
Claim · model-written summary
Combined foliar Zn and Fe gave maximum branches per plant of 8.36.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Foliar application of Zn (100 mg/L) + Fe (200 mg/L)e0
- Outcome
- branches per plante0
- Direction
- maximume0
- Value
- 8.36e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Foliar application of Zn (100 mg/L) + Fe (200 mg/L) resulted in the maximum plant height (124.14 cm), branches per plant (8.36), flowers per cluster (18.14), fruits per cluster (8), fruits per plant (90.14), fruit weight (95.14 g), chlorophyll content (22.14 SPAD) and yield (25.14 t ha–1).”
t0“tomato”
Claim · model-written summary
Combined foliar Zn and Fe gave maximum flowers per cluster of 18.14.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Foliar application of Zn (100 mg/L) + Fe (200 mg/L)e0
- Outcome
- flowers per clustere0
- Direction
- maximume0
- Value
- 18.14e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Foliar application of Zn (100 mg/L) + Fe (200 mg/L) resulted in the maximum plant height (124.14 cm), branches per plant (8.36), flowers per cluster (18.14), fruits per cluster (8), fruits per plant (90.14), fruit weight (95.14 g), chlorophyll content (22.14 SPAD) and yield (25.14 t ha–1).”
t0“tomato”
Claim · model-written summary
Combined foliar Zn and Fe gave maximum fruits per cluster of 8.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Foliar application of Zn (100 mg/L) + Fe (200 mg/L)e0
- Outcome
- fruits per clustere0
- Direction
- maximume0
- Value
- 8e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Foliar application of Zn (100 mg/L) + Fe (200 mg/L) resulted in the maximum plant height (124.14 cm), branches per plant (8.36), flowers per cluster (18.14), fruits per cluster (8), fruits per plant (90.14), fruit weight (95.14 g), chlorophyll content (22.14 SPAD) and yield (25.14 t ha–1).”
t0“tomato”
Claim · model-written summary
Combined foliar Zn and Fe gave maximum fruits per plant of 90.14.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Foliar application of Zn (100 mg/L) + Fe (200 mg/L)e0
- Outcome
- fruits per plante0
- Direction
- maximume0
- Value
- 90.14e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Foliar application of Zn (100 mg/L) + Fe (200 mg/L) resulted in the maximum plant height (124.14 cm), branches per plant (8.36), flowers per cluster (18.14), fruits per cluster (8), fruits per plant (90.14), fruit weight (95.14 g), chlorophyll content (22.14 SPAD) and yield (25.14 t ha–1).”
t0“tomato”
Claim · model-written summary
Combined foliar Zn and Fe gave maximum fruit weight of 95.14 g.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Foliar application of Zn (100 mg/L) + Fe (200 mg/L)e0
- Outcome
- fruit weighte0
- Direction
- maximume0
- Value
- 95.14 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Foliar application of Zn (100 mg/L) + Fe (200 mg/L) resulted in the maximum plant height (124.14 cm), branches per plant (8.36), flowers per cluster (18.14), fruits per cluster (8), fruits per plant (90.14), fruit weight (95.14 g), chlorophyll content (22.14 SPAD) and yield (25.14 t ha–1).”
t0“tomato”
Claim · model-written summary
Combined foliar Zn and Fe gave maximum chlorophyll content of 22.14 SPAD.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Foliar application of Zn (100 mg/L) + Fe (200 mg/L)e0
- Outcome
- chlorophyll contente0
- Direction
- maximume0
- Value
- 22.14 SPADe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Foliar application of Zn (100 mg/L) + Fe (200 mg/L) resulted in the maximum plant height (124.14 cm), branches per plant (8.36), flowers per cluster (18.14), fruits per cluster (8), fruits per plant (90.14), fruit weight (95.14 g), chlorophyll content (22.14 SPAD) and yield (25.14 t ha–1).”
t0“tomato”
Claim · model-written summary
Combined foliar Zn and Fe gave maximum yield of 25.14 t ha–1.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Foliar application of Zn (100 mg/L) + Fe (200 mg/L)e0
- Outcome
- yielde0
- Direction
- maximume0
- Value
- 25.14 t ha–1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Foliar application of Zn (100 mg/L) + Fe (200 mg/L) resulted in the maximum plant height (124.14 cm), branches per plant (8.36), flowers per cluster (18.14), fruits per cluster (8), fruits per plant (90.14), fruit weight (95.14 g), chlorophyll content (22.14 SPAD) and yield (25.14 t ha–1).”
t0“tomato”
Claim · model-written summary
Fe significantly affected leaves-NK content and nitrate reductase activity.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Fee0
- Outcome
- leaves-NK content and nitrate reductase activitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Fe and Zn alone or in combination had significant effect on leaves-NK content and nitrate reductase activity.”
t0“tomato”
Claim · model-written summary
Zn significantly affected leaves-NK content and nitrate reductase activity.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- Zne0
- Outcome
- leaves-NK content and nitrate reductase activitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Fe and Zn alone or in combination had significant effect on leaves-NK content and nitrate reductase activity.”
t0“tomato”
Claim · model-written summary
in combination significantly affected leaves-NK content and nitrate reductase activity.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- in combinatione0
- Outcome
- leaves-NK content and nitrate reductase activitye0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“Fe and Zn alone or in combination had significant effect on leaves-NK content and nitrate reductase activity.”
t0“tomato”
Claim · model-written summary
Combined Zn and Fe gave highest TSS of 5.87 °Brix.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- 100 mg/L Zn+200 mg/L Fee0
- Outcome
- TSSe0
- Direction
- higheste0
- Value
- 5.87 °Brixe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest TSS (5.87 °Brix), TA (4 %), pH (2.61 %), fruit firmness (3.66 kg cm–2) and fruit lycopene content (2.25 mg/100 g) were observed when tomato plants treated with 100 mg/L Zn+200 mg/L Fe”
t0“tomato”
Claim · model-written summary
Combined Zn and Fe gave highest TA of 4 %.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- 100 mg/L Zn+200 mg/L Fee0
- Outcome
- TAe0
- Direction
- higheste0
- Value
- 4 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest TSS (5.87 °Brix), TA (4 %), pH (2.61 %), fruit firmness (3.66 kg cm–2) and fruit lycopene content (2.25 mg/100 g) were observed when tomato plants treated with 100 mg/L Zn+200 mg/L Fe”
t0“tomato”
Claim · model-written summary
Combined Zn and Fe gave highest pH of 2.61 %.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- 100 mg/L Zn+200 mg/L Fee0
- Outcome
- pHe0
- Direction
- higheste0
- Value
- 2.61 %e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest TSS (5.87 °Brix), TA (4 %), pH (2.61 %), fruit firmness (3.66 kg cm–2) and fruit lycopene content (2.25 mg/100 g) were observed when tomato plants treated with 100 mg/L Zn+200 mg/L Fe”
t0“tomato”
Claim · model-written summary
Combined Zn and Fe gave highest fruit firmness of 3.66 kg cm–2.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- 100 mg/L Zn+200 mg/L Fee0
- Outcome
- fruit firmnesse0
- Direction
- higheste0
- Value
- 3.66 kg cm–2e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest TSS (5.87 °Brix), TA (4 %), pH (2.61 %), fruit firmness (3.66 kg cm–2) and fruit lycopene content (2.25 mg/100 g) were observed when tomato plants treated with 100 mg/L Zn+200 mg/L Fe”
t0“tomato”
Claim · model-written summary
Combined Zn and Fe gave highest fruit lycopene content of 2.25 mg/100 g.
- Taxon
- tomato
Solanum lycopersicumt0 - Treatment
- 100 mg/L Zn+200 mg/L Fee0
- Outcome
- fruit lycopene contente0
- Direction
- higheste0
- Value
- 2.25 mg/100 ge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
e0“The highest TSS (5.87 °Brix), TA (4 %), pH (2.61 %), fruit firmness (3.66 kg cm–2) and fruit lycopene content (2.25 mg/100 g) were observed when tomato plants treated with 100 mg/L Zn+200 mg/L Fe”
t0“tomato”
The same questions in other papers
iron atom · quality: phytochemicals · Solanum lycopersicum (tomato)Results differ
3 papers in the same direction as this paper · 3 in the opposite direction
- positive
- no effect
- no effect
3 papers more in this group
See all 7 papers →iron atom · growth · Solanum lycopersicum (tomato)Results differ
26 papers in the same direction as this paper · 3 in the opposite direction
- positive
- negative
- negative
26 papers more in this group
See all 30 papers →zinc atom · yield · Solanum lycopersicum (tomato)Results differ
43 papers in the same direction as this paper · 1 in the opposite direction
- positive
- positive
- negative
41 papers more in this group
See all 45 papers →zinc atom · growth · Solanum lycopersicum (tomato)Results differ
35 papers in the same direction as this paper · 21 in the opposite direction
- positive
- negative
- negative
53 papers more in this group
See all 57 papers →iron atom · soil: chemistry · Solanum lycopersicum (tomato)Positive and negative results
1 in the opposite direction
- no effect
zinc atom · quality: postharvest · Solanum lycopersicum (tomato)Positive and negative results
5 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
3 papers more in this group
See all 7 papers →zinc atom · quality: sugar starch · Solanum lycopersicum (tomato)Positive and negative results
10 papers in the same direction as this paper · 2 in the opposite direction
- no effect
- negative
- positive
9 papers more in this group
See all 13 papers →iron atom · physiology: pigments · Solanum lycopersicum (tomato)Positive and negative results
8 papers in the same direction as this paper · 3 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
9 papers more in this group
See all 13 papers →8 of 19 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.