Paper · 2024 · Scientific Reports

Enhanced vegetable production in hydroponic systems using decontamination of closed circulating fluid

Shirly Lara Perez; Rafael Basilio Ferro; Bruna Corrêa; et al.

4
claims
10
verbatim quotes
13
citations
3
research areas
✓
Open access · cc-by

Abstract

While plant microorganisms can promote plants by producing natural antibiotics, they can also be vectors for disease transmission. Contamination from plant management practices and the surrounding environment can adversely affect plants, leading to infections and hindered growth due to microbial competition for nutrients. The recirculation of nutrient-rich fluids can facilitate the transport of microorganisms between vegetables in the hydroponic production system. This issue can be addressed through the application of the decontamination method in the hydroponic liquid. Ultraviolet light (UV-C) has been employed for microbiology, and its effects on lettuce were evaluated in this study. This study aims to assess the effectiveness of a decontamination system using UV-C in hydroponic solutions during nutrient recirculation in hydroponics. We evaluated the time required for lettuce plants to reach their maximum height, as well as their pigment content, phenolic compounds, antioxidant capacity, and micro and macronutrient levels. The evaluation was conducted under two photoperiods (18 and 20 hours) in lettuce samples exposed to UV-C in the hydroponic fluid, with control groups not exposed to UV-C. The application of the UV-C decontamination system in hydroponic circulation water containing nutrients accelerated plant growth while maintaining nutritional values equal to or higher than those in the control groups without such a system. The results of microorganism control highlight the potential application of this technique for enhancing and expediting vegetable production. This approach reduces production time and enhances nutrient absorption and the content of certain compounds and minerals.

Abstract from the paper’s OpenAlex record; open copy licensed cc-by. 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 4

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

UV-C decontamination of hydroponic circulation water accelerated lettuce growth.

Taxon
lettuceLactuca sativae1
Treatment
UV-C decontamination system in hydroponic circulation watere2
Outcome
plant growthe2
Direction
acceleratede2
Comparator
control groups without such a systeme2

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“its effects on lettuce were evaluated in this study”

✓ located verbatim in the source · abstract, characters 642–693 · show in text ↑
e2

“The application of the UV-C decontamination system in hydroponic circulation water containing nutrients accelerated plant growth while maintaining nutritional values equal to or higher than those in the control groups without such a system”

✓ located verbatim in the source · abstract, characters 1212–1451 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

UV-C decontamination maintained lettuce nutritional values equal to or higher than controls.

Taxon
lettuceLactuca sativae1
Treatment
UV-C decontamination system in hydroponic circulation watere2
Outcome
nutritional valuese2
Direction
equal to or highere2
Comparator
control groups without such a systeme2

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“its effects on lettuce were evaluated in this study”

✓ located verbatim in the source · abstract, characters 642–693 · show in text ↑
e2

“The application of the UV-C decontamination system in hydroponic circulation water containing nutrients accelerated plant growth while maintaining nutritional values equal to or higher than those in the control groups without such a system”

✓ located verbatim in the source · abstract, characters 1212–1451 · show in text ↑
Intervention effectauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

UV-C decontamination of the hydroponic fluid enhances lettuce nutrient absorption and the content of certain compounds and minerals.

Taxon
lettuceLactuca sativae1
Treatment
UV-Ce5
Outcome
nutrient absorption and the content of certain compounds and mineralse3
Direction
enhancese3
Comparator
control groups not exposed to UV-Ce5

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“its effects on lettuce were evaluated in this study”

✓ located verbatim in the source · abstract, characters 642–693 · show in text ↑
e3

“This approach reduces production time and enhances nutrient absorption and the content of certain compounds and minerals”

✓ located verbatim in the source · abstract, characters 1595–1715 · show in text ↑
e5

“with control groups not exposed to UV-C”

✓ located verbatim in the source · abstract, characters 1171–1210 · show in text ↑
Method / resourceauthor interpretationoriginal resultpositivemeasured

Claim · model-written summary

UV-C decontamination of hydroponic lettuce fluid has potential for microorganism control.

Taxon
lettuceLactuca sativae1
Outcome
microorganism controle4
Comparator
control groups not exposed to UV-Ce5

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

Lactuca sativa
Lactuca sativa · Taxonen:User:Geographer · CC BY 1.0 · Wikimedia Commons ↗

Verbatim

e1

“its effects on lettuce were evaluated in this study”

✓ located verbatim in the source · abstract, characters 642–693 · show in text ↑
e4

“The results of microorganism control highlight the potential application of this technique for enhancing and expediting vegetable production”

✓ located verbatim in the source · abstract, characters 1453–1593 · show in text ↑
e5

“with control groups not exposed to UV-C”

✓ located verbatim in the source · abstract, characters 1171–1210 · show in text ↑

uv · growth · Lactuca sativa (garden lettuce)Results differ

35 papers: 15 positive, 20 negative or no effect

14 papers in the same direction as this paper · 20 in the opposite direction

  1. no effect
  2. negative
  3. no effect

31 papers more in this group

See all 35 papers →

cultivation system · growth · Lactuca sativa (garden lettuce)Positive and negative results

25 papers: 16 positive, 9 negative or no effect

15 papers in the same direction as this paper · 8 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. negative

21 papers more in this group

See all 25 papers →

uv · nutrient: content · Lactuca sativa (garden lettuce)Results agree

2 papers: 2 positive, 0 negative or no effect

1 paper in the same direction as this paper

  1. positive
See all 2 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.