seed-treatment
Seed treatment refers to the application of chemical, biological, or physical agents to seeds prior to planting in order to protect them from pathogens, pests, and environmental stressors while promoting uniform germination. This practice is significant in plant science because it directly influences seedling establishment, early plant vigor, and crop health without the need for broad-field pesticide application. Research into seed treatments helps scientists develop more targeted, efficient, and sustainable methods for improving plant resilience and agricultural productivity.
open_in_new WikipediaPubMed · 2026-04-13
Coating barley seeds with zinc oxide nanoparticles before planting dramatically boosts the crop's ability to survive salty soils by switching on protective genes and enzymes that manage salt damage at the cellular level.
Nano-primed seeds outperformed both untreated and water-soaked seeds, with one tolerant genotype (HOR11370) showing a 79-fold increase in a key protective gene (CAT1) under salt stress.
A second tolerant genotype (BCC1398) showed a 208-fold increase in the NHX3 gene, which helps pack excess salt safely into cellular compartments away from vital plant machinery.
Nano-priming also activated salt-defense genes in a previously sensitive barley variety (BCC532), suggesting the treatment can partially overcome genetic limitations to salt tolerance.
