Promoting lentil germination and stem growth by plasma activated tap water, demineralized water and liquid fertilizer

2017/07/25 by S. Zhang, A. Rousseau, T. Dufour · 1 citation
Biochemistry, Genetics and Molecular Biology · Physics and Astronomy · #physics.bio-ph #q-bio.OT

paper · pdf · doi:10.1039/c7ra04663d

published as RSC Adv., 2017,7, 31244-31251 · 8 pages, 9 figures, article with peer review

arxiv created 2017/07/25 · arxiv updated 2017/08/07

Abstract

Tap water, demineralized water and liquid fertilizer have been activated using an atmospheric pressure plasma jet (APPJ) to investigate their benefits for the germination rate and stem elongation rate of lentils from Puy-en-Velay (France). By plasma-activating tap water, we have obtained germination rates as high as 80% (instead of 30% with tap water). Also, higher stem elongation rates and final stem lengths were obtained using activated tap water compared with commercial fertilizer. We show that these rates of germination and stem growth strongly depend on the combination of two radicals generated in the liquids by the plasma: hydrogen peroxide and nitrate. This synergy appears to be a condition for releasing seed dormancy through the endogenous production of NO radicals.

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