Paper · 2020 · Agronomy

Morpho-Physiological Responses of Pisum sativum L. to Different Light-Emitting Diode (LED) Light Spectra in Combination with Biochar Amendment

Antonella Polzella; Mattia Terzaghi; Dalila Trupiano; et al.

5
claims
9
verbatim quotes
14
citations
2
research areas
✓
Open access · cc-by

Abstract

Light quality and nutrient availability are the primary factors that influence plant growth and development. In a research context of improving indoor plant cultivation while lowering environmental impact practices, we investigated the effect of different light spectra, three provided by light-emitting diodes (LEDs), and one by a fluorescent lamp, on the morpho-physiology of Pisum sativum L. seedlings grown in the presence/absence of biochar. We found that all morpho-physiological traits are sensitive to changes in the red-to-far-red light (R:FR) ratio related to the light spectra used. In particular, seedlings that were grown with a LED type characterized by the lowest R:FR ratio (~2.7; AP67), showed good plant development, both above- and belowground, especially when biochar was present. Biochar alone did not affect the physiological traits, which were influenced by the interplay with lighting type. AP67 LED type had a negative impact only on leaf fluorescence emission in light conditions, which was further exacerbated by the addition of biochar to the growing media. However, we found that the combination of biochar with a specific optimal light spectrum may have a synergetic effect enhancing pea seedling physiological performances and fruit yield and fostering desired traits. This is a promising strategy for indoor plant production while respecting the environment.

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 5

Associationobservedoriginal resultmeasured

Claim · model-written summary

All morpho-physiological traits of pea seedlings were sensitive to changes in the red-to-far-red ratio of the light spectra.

Taxon
Pisum sativumLathyrus oleraceust0
Treatment
red-to-far-red light (R:FR) ratioe1
Outcome
morpho-physiological traitse1

Not reportedDirection

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 34–50 · show in text ↑
e1

“all morpho-physiological traits are sensitive to changes in the red-to-far-red light (R:FR) ratio related to the light spectra used”

✓ located verbatim in the source · abstract, characters 461–592 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Seedlings grown with the LED type having the lowest R:FR ratio (about 2.7; AP67) showed good above- and belowground development, especially with biochar.

Taxon
Pisum sativumLathyrus oleraceust0
Treatment
LED type characterized by the lowest R:FR ratio (~2.7; AP67)e1
Outcome
plant developmente1
Qualifier
especially when biochar was presente1

Not reportedComparatorDirection

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 34–50 · show in text ↑
e1

“seedlings that were grown with a LED type characterized by the lowest R:FR ratio (~2.7; AP67), showed good plant development, both above- and belowground, especially when biochar was present”

✓ located verbatim in the source · abstract, characters 609–799 · show in text ↑
Intervention effectobservedoriginal resultno effectmeasured

Claim · model-written summary

Biochar alone did not affect the physiological traits.

Taxon
Pisum sativumLathyrus oleraceust0
Treatment
Biochare1
Outcome
physiological traitse1
Direction
did not affecte1

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 34–50 · show in text ↑
e1

“Biochar alone did not affect the physiological traits”

✓ located verbatim in the source · abstract, characters 801–854 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

The AP67 LED type had a negative impact only on leaf fluorescence emission in light conditions, further exacerbated by biochar.

Taxon
Pisum sativumLathyrus oleraceust0
Treatment
AP67 LED typee1
Outcome
leaf fluorescence emission in light conditionse1
Direction
negative impacte1
Qualifier
further exacerbated by the addition of biochare1

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

t0

“Pisum sativum L.”

✓ located verbatim in the source · title, characters 34–50 · show in text ↑
e1

“AP67 LED type had a negative impact only on leaf fluorescence emission in light conditions, which was further exacerbated by the addition of biochar”

✓ located verbatim in the source · abstract, characters 915–1063 · show in text ↑
Intervention effecthypothesisoriginal resultpositivemeasured

Claim · model-written summary

The authors suggest that combining biochar with a specific optimal light spectrum may have a synergetic effect enhancing pea seedling physiological performance and fruit yield.

Treatment
combination of biochar with a specific optimal light spectrume1
Outcome
pea seedling physiological performances and fruit yielde1
Direction
enhancinge1

Not reportedComparator

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

Lathyrus oleraceus
Lathyrus oleraceus · TaxonRenee Comet (photographer) AV Number: AV-9400-4164 · Public domain · Wikimedia Commons ↗

Verbatim

e1

“the combination of biochar with a specific optimal light spectrum may have a synergetic effect enhancing pea seedling physiological performances and fruit yield”

✓ located verbatim in the source · abstract, characters 1109–1269 · show in text ↑

biochar · yield · Lathyrus oleraceus (pea)Positive and negative results

6 papers: 4 positive, 2 negative or no effect

3 papers in the same direction as this paper · 2 in the opposite direction

  1. no effect
  2. no effect
  3. positive

2 papers more in this group

See all 6 papers →

light · yield · Lathyrus oleraceus (pea)Positive and negative results

11 papers: 7 positive, 4 negative or no effect

6 papers in the same direction as this paper · 4 in the opposite direction

  1. no effect
  2. negative
  3. negative

7 papers more in this group

See all 11 papers →

light · growth · Lathyrus oleraceus (pea)Positive and negative results

59 papers: 33 positive, 26 negative or no effect

32 papers in the same direction as this paper · 24 in the opposite direction · 2 reporting no difference from an alternative

  1. negative
  2. negative
  3. negative

55 papers more in this group

See all 59 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.