Abstract
This work aimed to evaluate the growth of two species of microgreens (mizuna and pak choi), using agro-industrial compost as growing media in two different mixes versus one hundred percent peat, under two different LED illumination spectra (LED 1 and LED 2) in a 14 h photoperiod. The experiment was carried-out for two times. Biomass yield, glucosinolates, and phenolic compounds, and nitrate (NO 3 − ) content were analysed in leaf tissues. In both species, the highest fresh and dry biomass production was in compost:peat (50:50%) and LED 2 (Blue/Red/Far Red). In general, compost had a greater influence on nitrate content than light, but in the microgreen pak choi, the anthocyanin content was inhibited by the compost treatment. In the other hand both LED illumination had a positive effect on mizuna for glucosinolates and anthocyanins, and LED 2 also showed a positive effect on pak choi for anthocyanin. Therefore, the use of agri-food compost: peat (50:50%) with LED 2 (blue/red) lighting treatment to obtain microgreens in indoor crops is a plausible technology that provides nutritionally and phytochemically rich crops.
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Claims 7
Claim · model-written summary
In mizuna, the highest fresh and dry biomass was obtained with compost:peat (50:50%) and LED 2.
- Taxon
- mizuna
Brassica rapa subsp. nipposinicae0 - Treatment
- compost:peat (50:50%) and LED 2 (Blue/Red/Far Red)e1
- Outcome
- fresh and dry biomass productione1
- Direction
- higheste1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two species of microgreens (mizuna and pak choi)”
e1“In both species, the highest fresh and dry biomass production was in compost:peat (50:50%) and LED 2 (Blue/Red/Far Red)”
Claim · model-written summary
In pak choi, the highest fresh and dry biomass was obtained with compost:peat (50:50%) and LED 2.
Verbatim
e0“two species of microgreens (mizuna and pak choi)”
e1“In both species, the highest fresh and dry biomass production was in compost:peat (50:50%) and LED 2 (Blue/Red/Far Red)”
Claim · model-written summary
Compost had a greater influence on nitrate content than light.
Verbatim
e0“two species of microgreens (mizuna and pak choi)”
e2“In general, compost had a greater influence on nitrate content than light”
Claim · model-written summary
Compost treatment inhibited anthocyanin content in pak choi microgreens compared with 100% peat.
Verbatim
e0“two species of microgreens (mizuna and pak choi)”
e3“in the microgreen pak choi, the anthocyanin content was inhibited by the compost treatment”
e4“versus one hundred percent peat”
Claim · model-written summary
Both LED illumination treatments had a positive effect on glucosinolates and anthocyanins in mizuna.
- Taxon
- mizunaBrassica rapa subsp. nipposinicae5
- Treatment
- LED illuminatione5
- Outcome
- glucosinolates and anthocyaninse5
- Direction
- positive effecte5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“two species of microgreens (mizuna and pak choi)”
e5“both LED illumination had a positive effect on mizuna for glucosinolates and anthocyanins”
Claim · model-written summary
LED 2 had a positive effect on anthocyanin in pak choi.
Not reportedComparator
Verbatim
e0“two species of microgreens (mizuna and pak choi)”
e6“LED 2 also showed a positive effect on pak choi for anthocyanin”
Claim · model-written summary
The authors recommend compost:peat (50:50%) with LED 2 lighting for indoor microgreen production as a plausible technology for nutritionally and phytochemically rich crops.
Verbatim
e0“two species of microgreens (mizuna and pak choi)”
e7“the use of agri-food compost: peat (50:50%) with LED 2 (blue/red) lighting treatment to obtain microgreens in indoor crops is a plausible technology that provides nutritionally and phytochemically rich crops”
The same questions in other papers
light · quality: phytochemicals · Brassica rapa (field mustard)Positive and negative results
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See all 22 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.