Abstract
Microgreens are a functional food that is very appreciated for their good taste and product features. They are produced all year without fertilizers and pesticides. In this paper, the effects of the application of commercial and natural biostimulants on the yield and nutraceutical properties of turnip greens and radish microgreens were investigated. The experiment consisted of four treatments based on biostimulants (Bio-1: TRAINER®; Bio-2: AQUAMIN®; Bio-3: leaf moringa extract; C: distilled water (control)) applied in two species (turnip greens and radish). Fresh and dry biomass, nitrate content, pigments, antioxidants, and antioxidant activity were measured. All biostimulants promoted biomass (both fresh and dry) accumulation in the radish but not in turnip greens. The treatment with biostimulant did not affect plant growth in the radish, while a depressive effect of Bio-1 upon plant growth was observed in turnip greens (−19% smaller than control). In radish, Bio-3 led to microgreens with the highest chlorophyll a content (+75% with respect to the control). Bio treatments did not affect the Chl (a, b, total) content in turnip greens. Biostimulants significantly lowered the nitrate content compared to the control (−27% nitrates) and significantly promoted TPC (+19% over the control) in the radish. They also stimulated antioxidant activity (DPPH), with the highest value in Bio-1, in the turnip, and in Bio-2 and Bio-3, in the radish. Conclusively, biostimulant treatments showed a positive effect on microgreens and, in particular, on those of the radish, improving various nutraceutical parameters.
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Claims 10
Claim · model-written summary
All biostimulants increased fresh and dry radish biomass.
- Taxon
- radish
Raphanus sativuse0 - Treatment
- All biostimulantse0
- Outcome
- biomass (both fresh and dry) accumulatione0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“All biostimulants promoted biomass (both fresh and dry) accumulation in the radish but not in turnip greens.”
Claim · model-written summary
Biostimulants did not promote turnip-green biomass.
- Taxon
- turnip greense0
- Treatment
- All biostimulantse0
- Outcome
- biomass (both fresh and dry) accumulatione0
- Direction
- note0
Not reportedComparator
Verbatim
e0“All biostimulants promoted biomass (both fresh and dry) accumulation in the radish but not in turnip greens.”
Claim · model-written summary
Biostimulant treatment did not affect radish growth.
- Taxon
- radishRaphanus sativuse0
- Treatment
- biostimulante0
- Outcome
- plant growthe0
- Direction
- did not affecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatment with biostimulant did not affect plant growth in the radish”
Claim · model-written summary
Bio-1 reduced turnip-green growth by 19% versus control.
Verbatim
e0“a depressive effect of Bio-1 upon plant growth was observed in turnip greens (−19% smaller than control).”
Claim · model-written summary
Bio-3 raised radish chlorophyll a content by 75% relative to control.
- Taxon
- radishRaphanus sativuse0
- Treatment
- Bio-3e0
- Outcome
- chlorophyll a contente0
- Direction
- higheste0
- Value
- +75%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In radish, Bio-3 led to microgreens with the highest chlorophyll a content (+75% with respect to the control).”
Claim · model-written summary
Biostimulants did not affect turnip-green chlorophyll content.
- Taxon
- turnip greense0
- Treatment
- Bio treatmentse0
- Outcome
- Chl (a, b, total) contente0
- Direction
- did not affecte0
Not reportedComparator
Verbatim
e0“Bio treatments did not affect the Chl (a, b, total) content in turnip greens.”
Claim · model-written summary
Biostimulants lowered radish nitrate content by 27% against control.
- Treatment
- Biostimulantse0
- Outcome
- nitrate contente0
- Direction
- lowerede0
- Value
- −27% nitratese0
- Comparator
- controle0
Not reportedTaxon
Verbatim
e0“Biostimulants significantly lowered the nitrate content compared to the control (−27% nitrates)”
Claim · model-written summary
Biostimulants increased radish TPC by 19% over control.
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly promoted TPC (+19% over the control) in the radish.”
Claim · model-written summary
Bio-1 produced the highest turnip antioxidant activity.
- Taxon
- turnip
.jpg?width=60)
Brassica rapa subsp. rapae0 - Treatment
- Bio-1e0
- Outcome
- antioxidant activity (DPPH)e0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“They also stimulated antioxidant activity (DPPH), with the highest value in Bio-1, in the turnip”
Claim · model-written summary
Bio-2 and Bio-3 produced the highest radish antioxidant activity.
- Taxon
- radishRaphanus sativuse0
- Treatment
- Bio-2 and Bio-3e0
- Outcome
- antioxidant activity (DPPH)e0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“antioxidant activity (DPPH), with the highest value in Bio-1, in the turnip, and in Bio-2 and Bio-3, in the radish.”
The same questions in other papers
other · growth · Raphanus sativus (radish)Positive and negative results
20 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- no effect
19 papers more in this group
See all 23 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.