Paper · 2016 · Journal of Plant Nutrition

Tomato growth responses to foliar application of ammonium sulfate in hydroponic culture

Sara Dehnavard; Mohammad Kazem Souri; Sedighe Mardanlu

8
claims
16
verbatim quotes
41
citations
2
research areas
—
Not open access

Abstract

This study was done to evaluate the growth responses of tomato plants (Lycopersicon esculentum Mill.) to foliar application of ammonium sulfate in different concentrations of 0, 50, 100, or 200 mM once per week, as well as 50 mM in every other day under greenhouse and hydroponic culture system. The results showed that foliar application of ammonium restricted the plant height, yield, and vitamin C content of fruits, but it increased the chlorophyll content in treated plants. The highest and the lowest yield were obtained from zero (control) and 200 mM treated plants, respectively. Fruit hardness was not affected by treatments, while blossom end rot disorder was increased by higher concentrations of ammonium sulfate. In general, the result indicated that tomato plant is rather sensitive to foliar application of ammonium sulfate particularly to higher concentrations and application numbers.

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Claims 8

Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Foliar ammonium restricted tomato plant height.

Taxon
tomato plantsSolanum lycopersicume0
Treatment
foliar application of ammoniume1
Outcome
plant heighte1
Direction
restrictede1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“growth responses of tomato plants (Lycopersicon esculentum Mill.) to foliar application of ammonium sulfate”

✓ located verbatim in the source · abstract, characters 36–143 · show in text ↑
e1

“foliar application of ammonium restricted the plant height, yield, and vitamin C content of fruits”

✓ located verbatim in the source · abstract, characters 320–418 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Foliar ammonium restricted tomato yield.

Taxon
tomato plantsSolanum lycopersicume0
Treatment
foliar application of ammoniume1
Outcome
yielde1
Direction
restrictede1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“growth responses of tomato plants (Lycopersicon esculentum Mill.) to foliar application of ammonium sulfate”

✓ located verbatim in the source · abstract, characters 36–143 · show in text ↑
e1

“foliar application of ammonium restricted the plant height, yield, and vitamin C content of fruits”

✓ located verbatim in the source · abstract, characters 320–418 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Foliar ammonium restricted fruit vitamin C content.

Taxon
tomato plantsSolanum lycopersicume0
Treatment
foliar application of ammoniume1
Outcome
vitamin C content of fruitse1
Direction
restrictede1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“growth responses of tomato plants (Lycopersicon esculentum Mill.) to foliar application of ammonium sulfate”

✓ located verbatim in the source · abstract, characters 36–143 · show in text ↑
e1

“foliar application of ammonium restricted the plant height, yield, and vitamin C content of fruits”

✓ located verbatim in the source · abstract, characters 320–418 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Foliar ammonium increased chlorophyll content.

Taxon
tomato plantsSolanum lycopersicume0
Treatment
foliar application of ammonium sulfatee0
Outcome
chlorophyll contente1
Direction
increasede1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“growth responses of tomato plants (Lycopersicon esculentum Mill.) to foliar application of ammonium sulfate”

✓ located verbatim in the source · abstract, characters 36–143 · show in text ↑
e1

“it increased the chlorophyll content in treated plants”

✓ located verbatim in the source · abstract, characters 424–478 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The control had the highest tomato yield.

Taxon
tomato plantsSolanum lycopersicume0
Treatment
zero (control)e1
Outcome
yielde1
Direction
higheste1

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“growth responses of tomato plants (Lycopersicon esculentum Mill.) to foliar application of ammonium sulfate”

✓ located verbatim in the source · abstract, characters 36–143 · show in text ↑
e1

“The highest and the lowest yield were obtained from zero (control) and 200 mM treated plants, respectively”

✓ located verbatim in the source · abstract, characters 480–586 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The 200 mM treatment had the lowest tomato yield.

Taxon
tomato plantsSolanum lycopersicume0
Treatment
200 mMe1
Outcome
yielde1
Direction
loweste1
Comparator
zero (control)e1

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“growth responses of tomato plants (Lycopersicon esculentum Mill.) to foliar application of ammonium sulfate”

✓ located verbatim in the source · abstract, characters 36–143 · show in text ↑
e1

“The highest and the lowest yield were obtained from zero (control) and 200 mM treated plants, respectively”

✓ located verbatim in the source · abstract, characters 480–586 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Fruit hardness was unaffected by treatments.

Taxon
tomato plantsSolanum lycopersicume0
Treatment
treatmentse1
Outcome
Fruit hardnesse1
Direction
not affectede1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“growth responses of tomato plants (Lycopersicon esculentum Mill.) to foliar application of ammonium sulfate”

✓ located verbatim in the source · abstract, characters 36–143 · show in text ↑
e1

“Fruit hardness was not affected by treatments”

✓ located verbatim in the source · abstract, characters 588–633 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Higher ammonium sulfate concentrations increased blossom end rot.

Taxon
tomato plantsSolanum lycopersicume0
Treatment
higher concentrations of ammonium sulfatee1
Outcome
blossom end rot disordere1
Direction
increasede1

Not reportedComparator

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

Solanum lycopersicum
Solanum lycopersicum · TaxonKod B · CC BY-SA 4.0 · Wikimedia Commons ↗

Verbatim

e0

“growth responses of tomato plants (Lycopersicon esculentum Mill.) to foliar application of ammonium sulfate”

✓ located verbatim in the source · abstract, characters 36–143 · show in text ↑
e1

“blossom end rot disorder was increased by higher concentrations of ammonium sulfate”

✓ located verbatim in the source · abstract, characters 641–724 · show in text ↑

nitrogen · quality: phytochemicals · Solanum lycopersicum (tomato)Positive and negative results

27 papers: 19 positive, 8 negative or no effect

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application · quality: phytochemicals · Solanum lycopersicum (tomato)Positive and negative results

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application · yield · Solanum lycopersicum (tomato)Positive and negative results

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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.