Abstract
Effects of supplemental lighting with different light qualities on the growth and physiological characteristics of seedlings of cucumber 'Zhongnong 21' and 'Zhongnong 27',pepper 'Juwuba 5' and 'Zhenyan 6',tomato 'Holland Hongfen' and 'Israel Hongfeng' were studied.The light emitting diode(LED)with different light qualities(red light,yellow light,green light,red+blue light and blue light)were used as supplemental lighting.The experimental results showed that the effects of supplemental lighting with different light qualities on different vegetable seedlings were obvious,but not identical.Generally speaking,the growth of seedlings were remarkably effected by red LED and red+blue LED,the stem diameter,fresh/dry weight and healthy index of the seedlings were significantly higher than those of the control(no supplemental lighting),and the soluble sugar content of cucumber 'Zhongnong 21',tomato and pepper seedlings were significantly increased as well.The maximal healthy index and dry weight of pepper 'Juwu ba 5' were obtained with blue LED.Chlorophyll and carotenoid content of cucumber and tomato 'Israel Hongfeng' seedlings were significantly increased by red or yellow LED.The results suggested that supplementing red or red + blue light could accelerate the growth of the vegetable seedlings and benefit the breeding of healthy seedling,but appropriate readjustment is necessary according to the different vegetable species and cultivars.
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Claims 8
Claim · model-written summary
Red and red plus blue LED increased seedling stem diameter, fresh and dry weight, and healthy index relative to no supplemental light.
- Taxon
- cucumber
Cucumis sativust0 - Treatment
- red LED and red+blue LEDe0
- Outcome
- stem diameter,fresh/dry weight and healthy indexe0
- Direction
- highere0
- Comparator
- control(no supplemental lighting)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the growth of seedlings were remarkably effected by red LED and red+blue LED,the stem diameter,fresh/dry weight and healthy index of the seedlings were significantly higher than those of the control(no supplemental lighting)”
t0“Cucumber,Pepper and Tomato Seedlings”
Claim · model-written summary
Supplemental lighting significantly increased soluble sugar in cucumber Zhongnong 21 seedlings.
- Taxon
- cucumberCucumis sativuse0
- Material
- Zhongnong 21e0
- Treatment
- supplemental lightingt0
- Outcome
- soluble sugar contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soluble sugar content of cucumber 'Zhongnong 21',tomato and pepper seedlings were significantly increased as well”
t0“Supplemental Lighting”
Claim · model-written summary
Supplemental lighting significantly increased soluble sugar in tomato seedlings.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- supplemental lightingt0
- Outcome
- soluble sugar contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the soluble sugar content of cucumber 'Zhongnong 21',tomato and pepper seedlings were significantly increased as well”
t0“Supplemental Lighting”
Claim · model-written summary
Supplemental lighting significantly increased soluble sugar in pepper seedlings.
Not reportedComparator
Verbatim
e0“the soluble sugar content of cucumber 'Zhongnong 21',tomato and pepper seedlings were significantly increased as well”
t0“Supplemental Lighting”
Claim · model-written summary
Blue LED produced the maximum healthy index and dry weight in pepper Juwu ba 5.
- Taxon
- peppere0
- Material
- Juwu ba 5e0
- Treatment
- blue LEDe0
- Outcome
- healthy index and dry weighte0
- Direction
- maximale0
Not reportedComparator
Verbatim
e0“The maximal healthy index and dry weight of pepper 'Juwu ba 5' were obtained with blue LED”
Claim · model-written summary
Red or yellow LED significantly increased chlorophyll and carotenoid in cucumber seedlings.
- Taxon
- cucumberCucumis sativuse0
- Treatment
- red or yellow LEDe0
- Outcome
- Chlorophyll and carotenoid contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll and carotenoid content of cucumber and tomato 'Israel Hongfeng' seedlings were significantly increased by red or yellow LED”
Claim · model-written summary
Red or yellow LED significantly increased chlorophyll and carotenoid in tomato Israel Hongfeng seedlings.
- Taxon
- tomatoSolanum lycopersicume0
- Material
- Israel Hongfenge0
- Treatment
- red or yellow LEDe0
- Outcome
- Chlorophyll and carotenoid contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chlorophyll and carotenoid content of cucumber and tomato 'Israel Hongfeng' seedlings were significantly increased by red or yellow LED”
Claim · model-written summary
The authors recommend red or red plus blue supplemental lighting for healthy vegetable seedlings, adjusted by species and cultivar.
Verbatim
e0“supplementing red or red + blue light could accelerate the growth of the vegetable seedlings and benefit the breeding of healthy seedling,but appropriate readjustment is necessary according to the different vegetable species and cultivars”
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