Effects of DBD air plasma treatment on the enhancement of black gram (Vigna mungo l.) seed germination and growth

Arch Biochem Biophys. 2020 Mar 15:681:108253. doi: 10.1016/j.abb.2020.108253. Epub 2020 Jan 7.

Abstract

Effects of black gram (vigna mungo L.cv. Barimash 3) seed treatments with 400 torr dielectric barrier discharge (DBD) air plasma on seed surface morphology, seed germination, seedling growth and antioxidant enzyme activities in the roots, shoots and leaves were investigated. The plasma discharge voltage, frequency, electrode spacing, gas temperature and power were 5kV, 4.5kHz, 60mm, 310K and 45W, respectively. The seeds were treated for the duration ranging from 20 to 180 s. Seed germination rate, seedling growth, total chlorophyll content, total soluble protein and sugar concentrations in the seedlings grown from the treated seeds were found to increase 13.67%, 37.13%, 37.26%,53.60% and 51.71%, respectively, with respect to control. This study reveals that the DBD air plasma was involved in the enhancement of nitrogen complex in the seed coat of black gram which upregulated the protein through nitrogen conversion that was ultimately responsible for the increased seed germination and seedling growth of black gram.

Keywords: DBD plasma; Enzymatic activity; H(2)O(2); NO; Seed germination; Seedling growth; Vigna mungo (black gram).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Equipment Design
  • Germination* / drug effects
  • Hydrogen Peroxide / metabolism
  • Nitric Oxide / metabolism
  • Plasma Gases / metabolism*
  • Seedlings / drug effects
  • Seedlings / growth & development
  • Seeds / drug effects
  • Seeds / growth & development*
  • Vigna / drug effects
  • Vigna / growth & development*

Substances

  • Plasma Gases
  • Nitric Oxide
  • Hydrogen Peroxide