Abstract
Leafy vegetables like lettuce and spinach are prone to significant post-harvest losses during handling and storage. The pre-harvest treatment of crops with biostimulants offers a sustainable strategy for reducing post-harvest losses. Earlier studies focused on the effect of plant biostimulants applied individually. In this study, we studied the efficacy of a combined application of two commonly used plant biostimulants: Ascophyllum nodosum extract (ANE) and humic acid (HA). Interestingly, the combination of both biostimulants improved early growth of lettuce and spinach compared to ANE and HA alone. Among the combinations used in this study, 0.25% ANE + 0.2% HA produced significantly higher fresh and dry biomass in lettuce and spinach compared to the other treatments and the control. Pre-harvest treatment of combination of 0.25% ANE and 0.2% HA significantly reduced the loss of fresh biomass during post-harvest storage. The combination of 0.25% ANE and 0.2% HA reduced lipid peroxidation during storage with an increase in total ascorbate, phenolic, and antioxidant capacity of spinach and lettuce. These results suggest that a combination of ANE and HA reduces post-harvest losses of spinach and lettuce more effectively than when applied individually.
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Claims 7
Claim · model-written summary
Combined biostimulants improved early lettuce growth relative to either alone.
- Taxon
- lettuce
Lactuca sativae0 - Treatment
- combination of both biostimulantse0
- Outcome
- early growthe0
- Direction
- improvede0
- Comparator
- ANE and HA alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combination of both biostimulants improved early growth of lettuce and spinach compared to ANE and HA alone”
Claim · model-written summary
Combined biostimulants improved early spinach growth relative to either alone.
- Taxon
- spinach
Spinacia oleraceae0 - Treatment
- combination of both biostimulantse0
- Outcome
- early growthe0
- Direction
- improvede0
- Comparator
- ANE and HA alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combination of both biostimulants improved early growth of lettuce and spinach compared to ANE and HA alone”
Claim · model-written summary
The 0.25% ANE plus 0.2% HA combination increased lettuce fresh and dry biomass relative to other treatments and control.
- Taxon
- lettuceLactuca sativae0
- Treatment
- 0.25% ANE + 0.2% HAe0
- Outcome
- fresh and dry biomasse0
- Direction
- highere0
- Comparator
- the other treatments and the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“0.25% ANE + 0.2% HA produced significantly higher fresh and dry biomass in lettuce and spinach compared to the other treatments and the control”
Claim · model-written summary
The 0.25% ANE plus 0.2% HA combination increased spinach fresh and dry biomass relative to other treatments and control.
- Taxon
- spinachSpinacia oleraceae0
- Treatment
- 0.25% ANE + 0.2% HAe0
- Outcome
- fresh and dry biomasse0
- Direction
- highere0
- Comparator
- the other treatments and the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“0.25% ANE + 0.2% HA produced significantly higher fresh and dry biomass in lettuce and spinach compared to the other treatments and the control”
Claim · model-written summary
Combined pretreatment reduced fresh biomass loss during postharvest storage.
- Taxon
- Lettuce and SpinachSpinacia oleraceaLactuca sativat0
- Organ / stage
- post-harvest storagee0
- Treatment
- combination of 0.25% ANE and 0.2% HAe0
- Outcome
- loss of fresh biomasse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pre-harvest treatment of combination of 0.25% ANE and 0.2% HA significantly reduced the loss of fresh biomass during post-harvest storage”
t0“Lettuce and Spinach”
Claim · model-written summary
The combination reduced lipid peroxidation during storage.
- Taxon
- spinach and lettuceSpinacia oleraceaLactuca sativae0
- Treatment
- combination of 0.25% ANE and 0.2% HAe0
- Outcome
- lipid peroxidatione0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of 0.25% ANE and 0.2% HA reduced lipid peroxidation during storage with an increase in total ascorbate, phenolic, and antioxidant capacity of spinach and lettuce”
Claim · model-written summary
The combination increased ascorbate, phenolic content and antioxidant capacity during storage.
- Taxon
- spinach and lettuceSpinacia oleraceaLactuca sativae0
- Treatment
- combination of 0.25% ANE and 0.2% HAe0
- Outcome
- total ascorbate, phenolic, and antioxidant capacitye0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of 0.25% ANE and 0.2% HA reduced lipid peroxidation during storage with an increase in total ascorbate, phenolic, and antioxidant capacity of spinach and lettuce”
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See all 78 papers →8 of 13 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.