Abstract
Laser irradiation represents a promising approach for pre-sowing seed treatment in agricultural plants. This energy-efficient and environmentally friendly technology can enhance germination rates, reduce seed contamination, and improve plant vigor. This article presents the results of a germination experiment on barley seeds irradiated with lasers at wavelengths of 637 nm (red spectrum) and 360 nm (ultraviolet), using exposure durations of 10, 20, and 30 seconds at a beam power density of 6 J/cm². Maximum total pigment concentrations in barley seedlings were observed following UV irradiation for 30 seconds and red light irradiation for 20 seconds. UV irradiation for 10 seconds and red light irradiation for 20 seconds showed a positive effect on the plant height of barley plants. Pre-sowing UV laser treatment of barley seeds resulted in increased plant mass by the 40th day. Plants grown from seeds irradiated with UV for 10 seconds exhibited significantly higher mass values in both the aerial part (26.8% increase compared to the control) and the root system (42.4% increase compared to the control). A statistically significant increase in nitrogen content was found in grains obtained from plants whose seeds were exposed to UV irradiation for 10 seconds, and in those exposed to red laser irradiation for 20 and 30 seconds. A statistically significant increase in phosphorus content was found in grains obtained from plants whose seeds were irradiated with a red laser for 20 seconds.
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 11
Claim · model-written summary
UV irradiation for 30 seconds gave maximum barley seedling pigments.
- Taxon
- barley
.jpg?width=60)
Hordeum vulgaree0 - Treatment
- UV irradiation for 30 secondse0
- Outcome
- total pigment concentrationse0
- Direction
- Maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“Maximum total pigment concentrations in barley seedlings were observed following UV irradiation for 30 seconds and red light irradiation for 20 seconds.”
Claim · model-written summary
red light irradiation for 20 seconds gave maximum barley seedling pigments.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- red light irradiation for 20 secondse0
- Outcome
- total pigment concentrationse0
- Direction
- Maximume0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maximum total pigment concentrations in barley seedlings were observed following UV irradiation for 30 seconds and red light irradiation for 20 seconds.”
Claim · model-written summary
UV irradiation for 10 seconds positively affected barley height.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- UV irradiation for 10 secondse0
- Outcome
- plant heighte0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV irradiation for 10 seconds and red light irradiation for 20 seconds showed a positive effect on the plant height of barley plants.”
Claim · model-written summary
red light irradiation for 20 seconds positively affected barley height.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- red light irradiation for 20 secondse0
- Outcome
- plant heighte0
- Direction
- positive effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“UV irradiation for 10 seconds and red light irradiation for 20 seconds showed a positive effect on the plant height of barley plants.”
Claim · model-written summary
Pre-sowing UV laser treatment increased barley mass by day 40.
- Taxon
- barleyHordeum vulgaree0
- Treatment
- Pre-sowing UV laser treatmente0
- Outcome
- plant masse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-sowing UV laser treatment of barley seeds resulted in increased plant mass by the 40th day.”
Claim · model-written summary
UV for 10 seconds increased aerial mass 26.8% versus control.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- irradiated with UV for 10 secondse0
- Outcome
- aerial parte0
- Direction
- highere0
- Value
- 26.8%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants grown from seeds irradiated with UV for 10 seconds exhibited significantly higher mass values in both the aerial part (26.8% increase compared to the control) and the root system (42.4% increase compared to the control).”
t0“barley”
Claim · model-written summary
UV for 10 seconds increased root mass 42.4% versus control.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- irradiated with UV for 10 secondse0
- Outcome
- root systeme0
- Direction
- highere0
- Value
- 42.4%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plants grown from seeds irradiated with UV for 10 seconds exhibited significantly higher mass values in both the aerial part (26.8% increase compared to the control) and the root system (42.4% increase compared to the control).”
t0“barley”
Claim · model-written summary
UV irradiation for 10 seconds increased grain nitrogen.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- UV irradiation for 10 secondse0
- Outcome
- nitrogen contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A statistically significant increase in nitrogen content was found in grains obtained from plants whose seeds were exposed to UV irradiation for 10 seconds, and in those exposed to red laser irradiation for 20 and 30 seconds.”
t0“barley”
Claim · model-written summary
Red laser irradiation for 20 seconds increased grain nitrogen.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- red laser irradiation for 20 and 30 secondse0
- Outcome
- nitrogen contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A statistically significant increase in nitrogen content was found in grains obtained from plants whose seeds were exposed to UV irradiation for 10 seconds, and in those exposed to red laser irradiation for 20 and 30 seconds.”
t0“barley”
Claim · model-written summary
Red laser irradiation for 30 seconds increased grain nitrogen.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- red laser irradiation for 20 and 30 secondse0
- Outcome
- nitrogen contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A statistically significant increase in nitrogen content was found in grains obtained from plants whose seeds were exposed to UV irradiation for 10 seconds, and in those exposed to red laser irradiation for 20 and 30 seconds.”
t0“barley”
Claim · model-written summary
Red laser irradiation for 20 seconds increased grain phosphorus.
- Taxon
- barleyHordeum vulgaret0
- Treatment
- a red laser for 20 secondse0
- Outcome
- phosphorus contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A statistically significant increase in phosphorus content was found in grains obtained from plants whose seeds were irradiated with a red laser for 20 seconds.”
t0“barley”
The same questions in other papers
uv · physiology: pigments · Hordeum vulgare (barley)Results differ
1 paper in the same direction as this paper · 5 in the opposite direction
- no effect
- negative
- negative
3 papers more in this group
See all 7 papers →uv · growth · Hordeum vulgare (barley)Results differ
3 papers in the same direction as this paper · 7 in the opposite direction
- negative
- negative
- negative
7 papers more in this group
See all 11 papers →radiation · growth · Hordeum vulgare (barley)Results differ
12 papers in the same direction as this paper · 22 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- negative
32 papers more in this group
See all 36 papers →radiation · nutrient: content · Hordeum vulgare (barley)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- negative
- positive
uv · nutrient: content · Hordeum vulgare (barley)Positive and negative results
2 in the opposite direction
- negative
- no effect
radiation · physiology: pigments · Hordeum vulgare (barley)Positive and negative results
3 in the opposite direction
- negative
- negative
- no effect
light · physiology: pigments · Hordeum vulgare (barley)Positive and negative results
8 papers in the same direction as this paper · 7 in the opposite direction
- no effect
- negative
- negative
12 papers more in this group
See all 16 papers →light · growth · Hordeum vulgare (barley)Positive and negative results
22 papers in the same direction as this paper · 12 in the opposite direction · 2 reporting no difference from an alternative
- negative
- no effect
- no effect
33 papers more in this group
See all 37 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.