Abstract
Research is advancing regarding techniques that are based on natural products developed using the plants. Extracellular DNA (eDNA) is a potential alternative that can be used as active material in agronomy. The objective of this study was to evaluate the use of self-eDNA using fertigation in lettuce plants as a biostimulant. Five fertigation treatments were used: 0 (control), 0.025, 0.25, 2.5 and 25 mg self-eDNA per plant. Fertigation was monitored through drainage fraction, pH and EC. The benefits of fertigation were evaluated using water, nitrate and potassium uptake, and growth. There was a significant correlation between fertigation uptake and growth. The highest correlation (R2 = 0.96) occurred between water uptake and growth. There was a quadratic fit between uptake and production parameters and the dose of self-eDNA applied. Mean drainage values showed no significant differences between treatments for EC and pH. The highest values of fertigation uptake (water, nitrate and potassium) and growth were observed at doses of 0.25 and 2.5 mg self-eDNA. Doses lower than 0.25 decreased by 21.3%, while doses higher than 2.5 decreased by 16.4%. Self-eDNA had beneficial effects as a biostimulant and potentially had an appropriate cost–benefit ratio.
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Claims 11
Claim · model-written summary
Fertigation uptake and growth were significantly correlated in lettuce.
- Taxon
- Lettuce
Lactuca sativat0 - Outcome
- growthe0
- Qualifier
- fertigation uptakee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a significant correlation between fertigation uptake and growth.”
t0“Lettuce”
Claim · model-written summary
Water uptake and growth had the highest reported correlation, R2 = 0.96.
- Taxon
- LettuceLactuca sativat0
- Outcome
- correlatione0
- Value
- R2 = 0.96e0
- Qualifier
- water uptake and growthe0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest correlation (R2 = 0.96) occurred between water uptake and growth.”
t0“Lettuce”
Claim · model-written summary
Uptake and production parameters had quadratic relationships with applied self-eDNA dose.
- Taxon
- LettuceLactuca sativat0
- Treatment
- dose of self-eDNA appliede0
- Outcome
- uptake and production parameterse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There was a quadratic fit between uptake and production parameters and the dose of self-eDNA applied.”
t0“Lettuce”
Claim · model-written summary
Mean drainage EC did not differ significantly between treatments.
- Taxon
- LettuceLactuca sativat0
- Treatment
- treatmentse0
- Outcome
- ECe0
- Direction
- no significant differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mean drainage values showed no significant differences between treatments for EC and pH.”
t0“Lettuce”
Claim · model-written summary
Mean drainage pH did not differ significantly between treatments.
- Taxon
- LettuceLactuca sativat0
- Treatment
- treatmentse0
- Outcome
- pHe0
- Direction
- no significant differencese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mean drainage values showed no significant differences between treatments for EC and pH.”
t0“Lettuce”
Claim · model-written summary
Water, nitrate and potassium uptake were highest at 0.25 and 2.5 mg self-eDNA.
- Taxon
- LettuceLactuca sativat0
- Treatment
- 0.25 and 2.5 mg self-eDNAe0
- Outcome
- fertigation uptake (water, nitrate and potassium)e0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest values of fertigation uptake (water, nitrate and potassium) and growth were observed at doses of 0.25 and 2.5 mg self-eDNA.”
t0“Lettuce”
Claim · model-written summary
Lettuce growth was highest at 0.25 and 2.5 mg self-eDNA.
- Taxon
- LettuceLactuca sativat0
- Treatment
- 0.25 and 2.5 mg self-eDNAe0
- Outcome
- growthe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest values of fertigation uptake (water, nitrate and potassium) and growth were observed at doses of 0.25 and 2.5 mg self-eDNA.”
t0“Lettuce”
Claim · model-written summary
Doses below 0.25 were associated with a 21.3% decrease in the reported response.
- Taxon
- LettuceLactuca sativat0
- Treatment
- Doses lower than 0.25e0
- Direction
- decreasede0
- Value
- 21.3%e0
Not reportedComparatorOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Doses lower than 0.25 decreased by 21.3%”
t0“Lettuce”
Claim · model-written summary
Doses above 2.5 were associated with a 16.4% decrease in the reported response.
- Taxon
- LettuceLactuca sativat0
- Treatment
- doses higher than 2.5e0
- Direction
- decreasede0
- Value
- 16.4%e0
Not reportedComparatorOutcome
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“doses higher than 2.5 decreased by 16.4%”
t0“Lettuce”
Claim · model-written summary
The authors found self-eDNA beneficial as a biostimulant and potentially cost-effective.
- Taxon
- LettuceLactuca sativat0
- Outcome
- beneficial effects as a biostimulante0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Self-eDNA had beneficial effects as a biostimulant and potentially had an appropriate cost–benefit ratio.”
t0“Lettuce”
Claim · model-written summary
Self-eDNA potentially had an appropriate cost–benefit ratio.
- Taxon
- LettuceLactuca sativat0
- Outcome
- appropriate cost–benefit ratioe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Self-eDNA had beneficial effects as a biostimulant and potentially had an appropriate cost–benefit ratio.”
t0“Lettuce”