Abstract
The effect of LED supplementary lighting at various intensities on winter-grown watermelon plants was evaluated to identify the optimal level for enhancing growth, yield, and quality. The plants were exposed to three lighting conditions: natural daylight (control) and LED supplementary lighting at 900 and 1500 µmol/m2/s, from 17:00 to 21:00. Supplemented LED lighting enhanced chlorophyll content, Ca2+ and Mg2+ in the leaves of fruit set region, leading to an increase in photosynthesis rate throughout the growing period and supporting consistent plant growth. The results showed that LED900 µmol/m2/s significantly boosted the number of female flowers, fruit weight, size, and flesh thickness. Ultimately, the yield per plant increased by 31% under the LED at 900 µmol/m2/s and by 14% under the LED at 1500 µmol/m2/s compared to the control. Furthermore, high sugar and low acid contents were detected in the LED-treated fruits. These results indicate that fruits bore under LED lighting ripened faster than those in the control. In conclusion, supplemental LED lighting markedly contributes to watermelon production during winter, with a 900 µmol/m2/s LED light intensity outperforming 1500 µmol/m2/s in promoting plant growth and boosting the yield and quality.
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Claims 15
Claim · model-written summary
Supplemental LED lighting enhanced leaf chlorophyll content in the fruit-set region.
- Taxon
- watermelon
Citrullus lanatust0 - Organ / stage
- leaves of fruit set regione0
- Treatment
- Supplemented LED lightinge0
- Outcome
- chlorophyll contente0
- Direction
- enhancede0
- Comparator
- natural daylight (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“Supplemented LED lighting enhanced chlorophyll content, Ca2+ and Mg2+ in the leaves of fruit set region, leading to an increase in photosynthesis rate throughout the growing period and supporting consistent plant growth”
e1“natural daylight (control)”
Claim · model-written summary
Supplemental LED lighting enhanced leaf Ca2+ in the fruit-set region.
- Taxon
- watermelonCitrullus lanatust0
- Organ / stage
- leaves of fruit set regione0
- Treatment
- Supplemented LED lightinge0
- Outcome
- Ca2+e0
- Direction
- enhancede0
- Comparator
- natural daylight (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“Supplemented LED lighting enhanced chlorophyll content, Ca2+ and Mg2+ in the leaves of fruit set region, leading to an increase in photosynthesis rate throughout the growing period and supporting consistent plant growth”
e1“natural daylight (control)”
Claim · model-written summary
Supplemental LED lighting enhanced leaf Mg2+ in the fruit-set region.
- Taxon
- watermelonCitrullus lanatust0
- Organ / stage
- leaves of fruit set regione0
- Treatment
- Supplemented LED lightinge0
- Outcome
- Mg2+e0
- Direction
- enhancede0
- Comparator
- natural daylight (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“Supplemented LED lighting enhanced chlorophyll content, Ca2+ and Mg2+ in the leaves of fruit set region, leading to an increase in photosynthesis rate throughout the growing period and supporting consistent plant growth”
e1“natural daylight (control)”
Claim · model-written summary
Supplemental LED lighting increased photosynthesis rate throughout growth.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- Supplemented LED lightinge0
- Outcome
- photosynthesis ratee0
- Direction
- increasee0
- Comparator
- natural daylight (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“Supplemented LED lighting enhanced chlorophyll content, Ca2+ and Mg2+ in the leaves of fruit set region, leading to an increase in photosynthesis rate throughout the growing period and supporting consistent plant growth”
e1“natural daylight (control)”
Claim · model-written summary
Supplemental LED lighting supported consistent plant growth.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- Supplemented LED lightinge0
- Outcome
- plant growthe0
- Direction
- consistente0
- Comparator
- natural daylight (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“Supplemented LED lighting enhanced chlorophyll content, Ca2+ and Mg2+ in the leaves of fruit set region, leading to an increase in photosynthesis rate throughout the growing period and supporting consistent plant growth”
e1“natural daylight (control)”
Claim · model-written summary
LED900 µmol/m2/s significantly boosted number of female flowers.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- LED900 µmol/m2/se0
- Outcome
- number of female flowerse0
- Direction
- boostede0
- Comparator
- natural daylight (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“LED900 µmol/m2/s significantly boosted the number of female flowers, fruit weight, size, and flesh thickness”
e1“natural daylight (control)”
Claim · model-written summary
LED900 µmol/m2/s significantly boosted fruit weight.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- LED900 µmol/m2/se0
- Outcome
- fruit weighte0
- Direction
- boostede0
- Comparator
- natural daylight (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“LED900 µmol/m2/s significantly boosted the number of female flowers, fruit weight, size, and flesh thickness”
e1“natural daylight (control)”
Claim · model-written summary
LED900 µmol/m2/s significantly boosted size.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- LED900 µmol/m2/se0
- Outcome
- sizee0
- Direction
- boostede0
- Comparator
- natural daylight (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“LED900 µmol/m2/s significantly boosted the number of female flowers, fruit weight, size, and flesh thickness”
e1“natural daylight (control)”
Claim · model-written summary
LED900 µmol/m2/s significantly boosted flesh thickness.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- LED900 µmol/m2/se0
- Outcome
- flesh thicknesse0
- Direction
- boostede0
- Comparator
- natural daylight (control)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“LED900 µmol/m2/s significantly boosted the number of female flowers, fruit weight, size, and flesh thickness”
e1“natural daylight (control)”
Claim · model-written summary
LED at 900 µmol/m2/s increased yield per plant by 31% versus control.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- LED at 900 µmol/m2/se0
- Outcome
- yield per plante0
- Direction
- increasede0
- Value
- 31%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“yield per plant increased by 31% under the LED at 900 µmol/m2/s and by 14% under the LED at 1500 µmol/m2/s compared to the control”
Claim · model-written summary
LED at 1500 µmol/m2/s increased yield per plant by 14% versus control.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- LED at 1500 µmol/m2/se0
- Outcome
- yield per plante0
- Direction
- increasede0
- Value
- 14%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“yield per plant increased by 31% under the LED at 900 µmol/m2/s and by 14% under the LED at 1500 µmol/m2/s compared to the control”
Claim · model-written summary
LED-treated fruits had high sugar content.
- Taxon
- watermelonCitrullus lanatust0
- Organ / stage
- fruitse0
- Treatment
- LED-treatede0
- Outcome
- sugare0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“high sugar and low acid contents were detected in the LED-treated fruits”
Claim · model-written summary
LED-treated fruits had low acid content.
- Taxon
- watermelonCitrullus lanatust0
- Organ / stage
- fruitse0
- Treatment
- LED-treatede0
- Outcome
- acid contentse0
- Direction
- lowe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“high sugar and low acid contents were detected in the LED-treated fruits”
Claim · model-written summary
Fruit under LED lighting ripened faster than controls.
- Taxon
- watermelonCitrullus lanatust0
- Organ / stage
- fruitse0
- Treatment
- LED lightinge0
- Outcome
- ripenede0
- Direction
- fastere0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“fruits bore under LED lighting ripened faster than those in the control”
Claim · model-written summary
The authors conclude that 900 µmol/m2/s LED outperforms 1500 µmol/m2/s for growth, yield and quality.
- Taxon
- watermelonCitrullus lanatust0
- Treatment
- 900 µmol/m2/s LED light intensitye0
- Outcome
- plant growth and boosting the yield and qualitye0
- Direction
- outperforminge0
- Comparator
- 1500 µmol/m2/se0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Winter Watermelon”
e0“a 900 µmol/m2/s LED light intensity outperforming 1500 µmol/m2/s in promoting plant growth and boosting the yield and quality”
The same questions in other papers
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6 papers in the same direction as this paper · 3 in the opposite direction
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See all 10 papers →light · physiology: pigments · Citrullus lanatus (watermelon)Results agree
2 papers in the same direction as this paper
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light · yield · Citrullus lanatus (watermelon)Results agree
3 papers in the same direction as this paper
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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.