application · Molecular: metabolites · Lactuca sativa (garden lettuce)

Production of ascorbic acid enriched vegetables: Absorption of an L-ascorbic acid solution and the effect of storage temperature on the foliar exogenous ascorbic acid content · 1998

• positive
  Soaking raised leaf AA plus DHA content in lettuce from 38.9 to 201–221 mg per 100 g fresh weight.

Influences of Sfoliar Selenium Solution Spraying on Selenium content,yield and qualit of Lettuce · 2007

• positive
  Foliar selenium solution increased organic selenium content in lettuce.
• positive
  Selenium spraying increased lettuce amino acid and vitamin C content.

Effects of the foliar application of silicon and cerium sol on relieving toxicity of Pb,Cd in the lettuce · 2012

• positive
  Foliar applications reduced nitrite in lettuce.

Spraying Silicon and/or Cerium Sols Favorably Mediated Enhancement of Cd/Pb Tolerance in Lettuce Grown in Combined Cd/Pb Contaminated Soil · 2013

• positive
  Silicon and cerium sol sprays reduced lettuce nitrite content.
• positive
  Silicon and cerium sol sprays decreased Cd/Pb content and accumulation in lettuce shoots and roots.

Effects of iron, manganese and zinc enriched coffee and tea wastes on lettuce – a field trial · 2017

• positive
  Soil application of microelement enriched wastes significantly increased lettuce microelement concentration in cores for all three microelements.

  compared with water solution application of the same compounds

The possibility of using of an aqueous extract from stevia (Stevia rebaudiana Bertoni) leaves as a biostimulant of plant growth in photoculture · 2020

• positive
  Foliar stevia leaf extract tended to decrease nitrate content of lettuce.

Foliar Application of Wood Distillate Alleviates Ozone-Induced Damage in Lettuce (Lactuca sativa L.) · 2022

• positive
  Wood distillate-treated lettuce had higher caffeic acid and quercetin than control plants under ozone fumigation.

  compared with control plants

• positive
  Wood distillate-treated lettuce had higher antioxidant power than control plants under ozone fumigation.

  compared with control plants

NMR Metabolomics and Chemometrics of Lettuce, Lactuca sativa L., under Different Foliar Organic Fertilization Treatments · 2022

• positive
  Foliar organic application reduced fumaric and formic acids, aromatic amino acids and nucleosides.
• positive
  Foliar organic application increased ethanolamine.

Effect of iron and zinc spray and nitrogen fertilization levels on some nutrients concentration in lettuce (Lactuca sativa L.) · 2022

• positive
  Spraying iron and zinc alone or together decreased nitrate and nitrite concentrations in lettuce leaves.

Impacts of Cobalt, Selenium and Silicon Biofortification on the Growth, Productivity and Nutritional Value of Lettuce · 2023

• positive
  Beneficial element sprays significantly enhanced lettuce sugars and free amino acids.

  compared with the control

Causal inference and mechanism for unraveling the removal of four pesticides from lettuce (Lactuca sativa L.) via ultrasonic processing and various immersion solutions · 2024

• positive
  Immersion solutions and ultrasonic processing reduced carbamate and pyrethroid residues on lettuce leaves by more than 80 % at the highest.

Silicon Supplementation Improves Growth, Physiology, and Biochemical Traits in Hydroponic Lettuce: Implications for Controlled-environment Agriculture · 2025

• positive
  Foliar Si (FS) promoted certain antioxidant responses in Rouxai lettuce.

Do Plants Need to Be Sprayed? New Insights into VOC-Mediated Biostimulation by Wood Vinegar · 2026

• positive
  Both treatments increased accumulation of S and Zn.

  compared with untreated controls

• positive
  Both treatments increased accumulation of Ca, K and P.

  compared with untreated controls