Abstract
We studied the effects of light quality on growth and development,major economic properties and quality characters of flue-cured tobacco by using flue-cured tobacco Yunyan 87 as the test material.We used colored films of similar transmittance to conduct shadings treatment on the bird-nest stage and at the topping period of flue-cured tobacco until the end of growth.Results showed blue light could promote the reproductive growth of tobacco plants and delay maturation of tobacco leaves.While red,yellow and white light did not influence the development progress of tobacco significantly,and the growth period of tobacco would be extended when the shading was conducted at topping period.Light quality has the strongest significant effect on the growth of tobacco leaves,the influence of red and blue light was stronger during the earlier stages of growth,while the influence of yellow and white light was stronger at later growing periods.Agronomic traits of the tobacco plant achieved to the best overall performance under natural light and red film.Red light could improve the growth of the tobacco stem and leaves,as well as blue and yellow light could restrain the growth of tobacco stem and reduce leaf area.Increasing the proportion of red light on the tobacco during the earlier growing stage improved the major economic properties of cured tobacco leaves,the effects of blue light became more obviously important during the latter stage of growth.The proper combination of red light and yellow light may play an important role in improving the tobacco leaf quality in different growing period.Increasing the proportion of red light on the tobacco during the earlier growing stage reduced the content of nicotine and protein in cured tobacco leaves as well as improved the carbohydrate content and the smoking quality of cured tobacco leaves,however,which was found to negatively affect the potassium oxide content.While enhancing yellow light proportion during later growing periods could obviously improve the smoking quality of cured tobacco leaves,and its chemical compositions were more harmonious.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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 19
Claim · model-written summary
Blue light promoted reproductive growth of tobacco plants
Not reportedComparator
Verbatim
e0“blue light could promote the reproductive growth of tobacco plants and delay maturation of tobacco leaves.While red,yellow and white light did not influence the development progress of tobacco significantly,and the growth period of tobacco would be extended when the shading was conducted at topping period”
t0“flue-cured tobacco”
Claim · model-written summary
Blue light delayed maturation of tobacco leaves
Not reportedComparator
Verbatim
e0“blue light could promote the reproductive growth of tobacco plants and delay maturation of tobacco leaves.While red,yellow and white light did not influence the development progress of tobacco significantly,and the growth period of tobacco would be extended when the shading was conducted at topping period”
t0“flue-cured tobacco”
Claim · model-written summary
Red, yellow and white light did not significantly influence tobacco development progress
- Taxon
- flue-cured tobaccot0
- Treatment
- red,yellow and white lighte0
- Outcome
- development progresse0
- Direction
- did not influencee0
Not reportedComparator
Verbatim
e0“blue light could promote the reproductive growth of tobacco plants and delay maturation of tobacco leaves.While red,yellow and white light did not influence the development progress of tobacco significantly,and the growth period of tobacco would be extended when the shading was conducted at topping period”
t0“flue-cured tobacco”
Claim · model-written summary
Shading at the topping period extended the growth period of tobacco
- Taxon
- flue-cured tobaccot0
- Treatment
- shading was conducted at topping periode0
- Outcome
- growth periode0
- Direction
- extendede0
Not reportedComparator
Verbatim
e0“blue light could promote the reproductive growth of tobacco plants and delay maturation of tobacco leaves.While red,yellow and white light did not influence the development progress of tobacco significantly,and the growth period of tobacco would be extended when the shading was conducted at topping period”
t0“flue-cured tobacco”
Claim · model-written summary
Light quality had the strongest significant effect on tobacco leaf growth
Not reportedDirection
Verbatim
e1“Light quality has the strongest significant effect on the growth of tobacco leaves,the influence of red and blue light was stronger during the earlier stages of growth,while the influence of yellow and white light was stronger at later growing periods”
t0“flue-cured tobacco”
Claim · model-written summary
Red and blue light influence on tobacco growth was stronger in the earlier stages of growth
Verbatim
e1“Light quality has the strongest significant effect on the growth of tobacco leaves,the influence of red and blue light was stronger during the earlier stages of growth,while the influence of yellow and white light was stronger at later growing periods”
t0“flue-cured tobacco”
Claim · model-written summary
Yellow and white light influence on tobacco growth was stronger at later growing periods
Verbatim
e1“Light quality has the strongest significant effect on the growth of tobacco leaves,the influence of red and blue light was stronger during the earlier stages of growth,while the influence of yellow and white light was stronger at later growing periods”
t0“flue-cured tobacco”
Claim · model-written summary
Red film with natural light comparison gave the best overall agronomic performance of tobacco
Verbatim
e2“Agronomic traits of the tobacco plant achieved to the best overall performance under natural light and red film.Red light could improve the growth of the tobacco stem and leaves, as well as blue and yellow light could restrain the growth of tobacco stem and reduce leaf area”
t0“flue-cured tobacco”
Claim · model-written summary
Red light improved the growth of tobacco stem and leaves
- Taxon
- flue-cured tobaccot0
- Organ / stage
- stem and leavese2
- Treatment
- Red lighte2
- Outcome
- growth of the tobacco stem and leavese2
- Direction
- improvee2
Not reportedComparator
Verbatim
e2“Agronomic traits of the tobacco plant achieved to the best overall performance under natural light and red film.Red light could improve the growth of the tobacco stem and leaves, as well as blue and yellow light could restrain the growth of tobacco stem and reduce leaf area”
t0“flue-cured tobacco”
Claim · model-written summary
Blue and yellow light restrained the growth of tobacco stem
- Taxon
- flue-cured tobaccot0
- Treatment
- blue and yellow lighte2
- Outcome
- growth of tobacco steme2
- Direction
- restraine2
Not reportedComparator
Verbatim
e2“Agronomic traits of the tobacco plant achieved to the best overall performance under natural light and red film.Red light could improve the growth of the tobacco stem and leaves, as well as blue and yellow light could restrain the growth of tobacco stem and reduce leaf area”
t0“flue-cured tobacco”
Claim · model-written summary
Blue and yellow light reduced tobacco leaf area
Not reportedComparator
Verbatim
e2“Agronomic traits of the tobacco plant achieved to the best overall performance under natural light and red film.Red light could improve the growth of the tobacco stem and leaves, as well as blue and yellow light could restrain the growth of tobacco stem and reduce leaf area”
t0“flue-cured tobacco”
Claim · model-written summary
More red light in the earlier growing stage improved the major economic properties of cured tobacco leaves
- Taxon
- flue-cured tobaccot0
- Organ / stage
- earlier growing stagee3
- Treatment
- Increasing the proportion of red lighte3
- Outcome
- major economic properties of cured tobacco leavese3
- Direction
- improvede3
Not reportedComparator
Verbatim
e3“Increasing the proportion of red light on the tobacco during the earlier growing stage improved the major economic properties of cured tobacco leaves,the effects of blue light became more obviously important during the latter stage of growth”
t0“flue-cured tobacco”
Claim · model-written summary
The effects of blue light became more obviously important in the latter stage of growth
Not reportedDirection
Verbatim
e3“Increasing the proportion of red light on the tobacco during the earlier growing stage improved the major economic properties of cured tobacco leaves,the effects of blue light became more obviously important during the latter stage of growth”
t0“flue-cured tobacco”
Claim · model-written summary
More red light in the earlier growing stage reduced nicotine and protein content of cured tobacco leaves
- Taxon
- flue-cured tobaccot0
- Organ / stage
- earlier growing stagee4
- Treatment
- Increasing the proportion of red lighte4
- Outcome
- content of nicotine and proteine4
- Direction
- reducede4
Not reportedComparator
Verbatim
e4“Increasing the proportion of red light on the tobacco during the earlier growing stage reduced the content of nicotine and protein in cured tobacco leaves as well as improved the carbohydrate content and the smoking quality of cured tobacco leaves”
t0“flue-cured tobacco”
Claim · model-written summary
More red light in the earlier growing stage improved carbohydrate content of cured tobacco leaves
- Taxon
- flue-cured tobaccot0
- Organ / stage
- earlier growing stagee4
- Treatment
- Increasing the proportion of red lighte4
- Outcome
- carbohydrate contente4
- Direction
- improvede4
Not reportedComparator
Verbatim
e4“Increasing the proportion of red light on the tobacco during the earlier growing stage reduced the content of nicotine and protein in cured tobacco leaves as well as improved the carbohydrate content and the smoking quality of cured tobacco leaves”
t0“flue-cured tobacco”
Claim · model-written summary
More red light in the earlier growing stage improved smoking quality of cured tobacco leaves
- Taxon
- flue-cured tobaccot0
- Organ / stage
- earlier growing stagee4
- Treatment
- Increasing the proportion of red lighte4
- Outcome
- smoking quality of cured tobacco leavese4
- Direction
- improvede4
Not reportedComparator
Verbatim
e4“Increasing the proportion of red light on the tobacco during the earlier growing stage reduced the content of nicotine and protein in cured tobacco leaves as well as improved the carbohydrate content and the smoking quality of cured tobacco leaves”
t0“flue-cured tobacco”
Claim · model-written summary
More red light in the earlier growing stage negatively affected potassium oxide content of cured tobacco leaves
- Taxon
- flue-cured tobaccot0
- Organ / stage
- earlier growing stagee4
- Treatment
- Increasing the proportion of red lighte4
- Outcome
- potassium oxide contente5
- Direction
- negatively affecte5
Not reportedComparator
Verbatim
e4“Increasing the proportion of red light on the tobacco during the earlier growing stage reduced the content of nicotine and protein in cured tobacco leaves as well as improved the carbohydrate content and the smoking quality of cured tobacco leaves”
e5“which was found to negatively affect the potassium oxide content”
t0“flue-cured tobacco”
Claim · model-written summary
Enhancing yellow light during later growing periods could improve smoking quality of cured tobacco leaves
- Taxon
- flue-cured tobaccot0
- Organ / stage
- later growing periodse6
- Treatment
- enhancing yellow light proportione6
- Outcome
- smoking quality of cured tobacco leavese6
- Direction
- improvee6
Not reportedComparator
Verbatim
e6“While enhancing yellow light proportion during later growing periods could obviously improve the smoking quality of cured tobacco leaves,and its chemical compositions were more harmonious”
t0“flue-cured tobacco”
Claim · model-written summary
Enhancing yellow light during later growing periods made chemical compositions of cured tobacco leaves more harmonious
- Taxon
- flue-cured tobaccot0
- Organ / stage
- later growing periodse6
- Treatment
- enhancing yellow light proportione6
- Outcome
- chemical compositionse6
- Direction
- more harmoniouse6
Not reportedComparator
Verbatim
e6“While enhancing yellow light proportion during later growing periods could obviously improve the smoking quality of cured tobacco leaves,and its chemical compositions were more harmonious”
t0“flue-cured tobacco”
The same questions in other papers
light · quality: general · Nicotiana tabacum (tobacco)Positive and negative results
3 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
1 paper more in this group
See all 5 papers →light · organism · Nicotiana tabacum (tobacco)Positive and negative results
1 paper in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
1 paper more in this group
See all 5 papers →light · quality: sugar starch · Nicotiana tabacum (tobacco)Positive and negative results
3 papers in the same direction as this paper · 4 in the opposite direction
- no effect
- negative
- negative
4 papers more in this group
See all 8 papers →light · molecular: metabolites · Nicotiana tabacum (tobacco)Positive and negative results
12 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
17 papers more in this group
See all 21 papers →light · growth · Nicotiana tabacum (tobacco)Positive and negative results
28 papers in the same direction as this paper · 16 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- negative
43 papers more in this group
See all 47 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.