Abstract
The purpose of this study is to determine the effects of red and blue lights on the photomorphogenesis and photosynthetic traits of rice seedlings. The rice seedlings were cultured with red light (R), blue light (B), combined red and blue lights (R3B1/R1B1/R1B3), and white light (CK) as the control. The combined application of red and blue lights could promote the growth of rice seedlings to varying degrees; enhance photosynthesis by increasing the seedling leaf area, chlorophyll content, and chlorophyll fluorescence; improve root characteristics by increasing root number, root volume, and root activity; and thus increase the dry matter accumulation of rice seedlings. In addition, the combination of red and blue lights could regulate the expression of genes related to photosynthesis in rice leaves, affect the activity of the Rubisco enzyme, and then affect the photosynthesis of rice seedlings. These results indicate that red and blue lights have direct synergistic effects, which can regulate the growth of rice seedlings and promote the morphogenesis of rice seedlings. The combined application of red and blue lights can be used to supplement the light in rice-factory seedling raising.
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Claims 7
Claim · model-written summary
Combined red and blue light promoted growth of rice seedlings to varying degrees, compared with white light control.
- Taxon
- rice
Oryza sativat0 - Treatment
- combined application of red and blue lightse1
- Outcome
- growth of rice seedlingse1
- Direction
- promotee1
- Qualifier
- to varying degreese1
- Comparator
- white light (CK)e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Changes in Rice Seedlings”
e1“The combined application of red and blue lights could promote the growth of rice seedlings to varying degrees”
e7“white light (CK) as the control”
Claim · model-written summary
Combined red and blue light increased seedling leaf area, chlorophyll content and chlorophyll fluorescence of rice, compared with white light control.
- Taxon
- riceOryza sativat0
- Treatment
- combined application of red and blue lightse1
- Outcome
- seedling leaf area, chlorophyll content, and chlorophyll fluorescencee2
- Direction
- increasinge2
- Comparator
- white light (CK)e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Changes in Rice Seedlings”
e1“The combined application of red and blue lights could promote the growth of rice seedlings to varying degrees”
e2“enhance photosynthesis by increasing the seedling leaf area, chlorophyll content, and chlorophyll fluorescence”
e7“white light (CK) as the control”
Claim · model-written summary
Combined red and blue light increased root number, root volume and root activity of rice seedlings, compared with white light control.
- Taxon
- riceOryza sativat0
- Organ / stage
- roote3
- Treatment
- combined application of red and blue lightse1
- Outcome
- root number, root volume, and root activitye3
- Direction
- increasinge3
- Comparator
- white light (CK)e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Changes in Rice Seedlings”
e1“The combined application of red and blue lights could promote the growth of rice seedlings to varying degrees”
e3“improve root characteristics by increasing root number, root volume, and root activity”
e7“white light (CK) as the control”
Claim · model-written summary
Combined red and blue light increased dry matter accumulation of rice seedlings, compared with white light control.
- Taxon
- riceOryza sativat0
- Treatment
- combined application of red and blue lightse1
- Outcome
- dry matter accumulatione4
- Direction
- increasee4
- Comparator
- white light (CK)e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Changes in Rice Seedlings”
e1“The combined application of red and blue lights could promote the growth of rice seedlings to varying degrees”
e4“thus increase the dry matter accumulation of rice seedlings”
e7“white light (CK) as the control”
Claim · model-written summary
Combined red and blue light could regulate expression of photosynthesis-related genes in rice leaves, compared with white light control.
- Taxon
- riceOryza sativat0
- Organ / stage
- rice leavese5
- Treatment
- combination of red and blue lightse5
- Outcome
- expression of genes related to photosynthesise5
- Comparator
- white light (CK)e7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Changes in Rice Seedlings”
e5“the combination of red and blue lights could regulate the expression of genes related to photosynthesis in rice leaves”
e7“white light (CK) as the control”
Claim · model-written summary
Combined red and blue light affects the activity of the Rubisco enzyme in rice seedlings, compared with white light control.
- Taxon
- riceOryza sativat0
- Treatment
- combination of red and blue lightse5
- Gene
- Rubisco enzymee6
- Outcome
- activity of the Rubisco enzymee6
- Comparator
- white light (CK)e7
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Changes in Rice Seedlings”
e5“the combination of red and blue lights could regulate the expression of genes related to photosynthesis in rice leaves”
e6“affect the activity of the Rubisco enzyme”
e7“white light (CK) as the control”
Claim · model-written summary
The authors recommend combined red and blue light to supplement light in rice-factory seedling raising.
- Taxon
- riceOryza sativat0
- Outcome
- supplement the light in rice-factory seedling raisinge1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Changes in Rice Seedlings”
e1“can be used to supplement the light in rice-factory seedling raising”
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