Abstract
The supplementation of blue light to red light enhanced plant growth compared with the use of red alone. The aim of thestudy was to determine the effect of different doses of blue light on the biometric traits and photosynthesis of dill plants. Theplants were grown in pots in a growth chamber. They were grown in red light (100 μmol m-2 s-1) and blue light (from 10 to 50μmol m-2 s-1) in five combinations. Light emitting diode modules were the source of light. The plants were evaluated every 7days during vegetation, for the first time - seven days after germination and later on the 14th, 21st and 28th day aftergermination. The share of blue light in the spectrum significantly influenced the biometric traits of the dill plants. Itsignificantly inhibited the elongation growth of the plants and negatively affected the increase in fresh weight. A small dose ofblue light (20%) had positive effect on the plants’ area. The research did not reveal a simple relationship between the amountof blue light and dry weight yield. The value of physiological indexes depended both on the combination and measurementtime. The plants from the combination with 30% blue light were characterised by the greatest photosynthesis intensity. Aneffective share of blue light in the spectrum may range from 10 to 30% in relation to red light and depends on the plant’sdevelopment phase and on the result we want to achieve in the cultivation of plants.
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Claims 7
Claim · model-written summary
Blue light significantly inhibited the elongation growth of dill plants compared with red light.
- Taxon
- dill plants
Anethum graveolense1 - Treatment
- share of blue light in the spectrume1
- Outcome
- elongation growthe2
- Direction
- inhibitede2
- Comparator
- red lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The supplementation of blue light to red light enhanced plant growth compared with the use of red alone”
e1“The share of blue light in the spectrum significantly influenced the biometric traits of the dill plants”
e2“significantly inhibited the elongation growth of the plants”
Claim · model-written summary
Blue light negatively affected the increase in fresh weight of dill plants compared with red light.
- Taxon
- dill plantsAnethum graveolense1
- Treatment
- share of blue light in the spectrume1
- Outcome
- increase in fresh weighte3
- Direction
- negatively affectede3
- Comparator
- red lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The supplementation of blue light to red light enhanced plant growth compared with the use of red alone”
e1“The share of blue light in the spectrum significantly influenced the biometric traits of the dill plants”
e3“negatively affected the increase in fresh weight”
Claim · model-written summary
A small dose of blue light (20%) had a positive effect on the plant area of dill compared with red light.
- Taxon
- dill plantsAnethum graveolense1
- Treatment
- blue light (20%)e4
- Outcome
- plants’ areae4
- Direction
- positive effecte4
- Comparator
- red lighte0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The supplementation of blue light to red light enhanced plant growth compared with the use of red alone”
e1“The share of blue light in the spectrum significantly influenced the biometric traits of the dill plants”
e4“A small dose ofblue light (20%) had positive effect on the plants’ area”
Claim · model-written summary
No simple relationship was found between the amount of blue light and dry weight yield of dill.
- Taxon
- dill plantsAnethum graveolense1
- Treatment
- blue lighte5
- Outcome
- dry weight yielde5
- Qualifier
- did not reveal a simple relationshipe5
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The share of blue light in the spectrum significantly influenced the biometric traits of the dill plants”
e5“did not reveal a simple relationship between the amountof blue light and dry weight yield”
Claim · model-written summary
Physiological indexes of dill depended on the blue light combination and measurement time.
- Taxon
- dill plantsAnethum graveolense1
- Outcome
- physiological indexese6
- Qualifier
- depended both on the combination and measurement timee6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The share of blue light in the spectrum significantly influenced the biometric traits of the dill plants”
e6“The value of physiological indexes depended both on the combination and measurement time”
Claim · model-written summary
Dill plants with 30% blue light had the greatest photosynthesis intensity.
- Taxon
- dill plantsAnethum graveolense1
- Treatment
- 30% blue lighte6
- Outcome
- photosynthesis intensitye6
- Direction
- greateste6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The share of blue light in the spectrum significantly influenced the biometric traits of the dill plants”
e6“The plants from the combination with 30% blue light were characterised by the greatest photosynthesis intensity”
Claim · model-written summary
An effective blue light share of 10 to 30% relative to red light is recommended for dill, depending on developmental phase and target result.
- Taxon
- dill plantsAnethum graveolense1
- Outcome
- effective share of blue light in the spectrume7
- Value
- 10 to 30%e7
- Qualifier
- depends on the plant’s development phasee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The share of blue light in the spectrum significantly influenced the biometric traits of the dill plants”
e7“effective share of blue light in the spectrum may range from 10 to 30% in relation to red light and depends on the plant’s development phase”
The same questions in other papers
light · growth · Anethum graveolens (dill)Positive and negative results
3 papers in the same direction as this paper · 5 in the opposite direction
- positive
- positive
- positive
5 papers more in this group
See all 9 papers →light · physiology: photosynthesis · Anethum graveolens (dill)Results agree
1 paper in the same direction as this paper
- positive
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.