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Abstract Webber III, C.L., C.L. Webber Jr., and S.J.
Sandtner. 2009. Impact
of hydrogen peroxide as a soil amendment on greenhouse nasturtiums. JEMREST 6:00-00 DOI: 10.4029/2009jemrest6no118 Hydrogen peroxide, H2O2, is
a highly reactive oxidizing agent naturally occurring in plants and
animals. There are anecdotal reports
that hydrogen peroxide provides additional growth benefits beyond controlling
plant infection and plant stress. The
objective of this research was to determine the effect of soil applications
of hydrogen peroxide solutions on plant growth and flowering. Nasturtium (Tropaeolum majus L. ‘Scarlet Glean Improved’) seedlings
were irrigated with either distilled water, tap water, or hydrogen peroxide
solutions. The hydrogen peroxide treatments included 0.005% H2O2
(1X), 0.05% H2O2 (10X), and 0.1% H2O2
(20X), which are equivalent to 1.67, 16.67, and 33.32 mL·L-1
of 3% hydrogen peroxide. Concentrations
did significantly impact the foliage, root, and total dry weights at 33 DAIT.
The results indicate that watering nasturtiums
at the tested hydrogen peroxide application rates did not provide a
significant benefit to nasturtium plant growth and flowering. The 10X (0.05% H2O2)
and 20X (0.1% H2O2) actually decreased plant foliage
dry weights and flower numbers. The
most likely explanation for the anecdotal reports of dramatic growth stimulus
of hydrogen peroxide watering solutions may be a result of decreasing or
eliminating diseases in the soil containers rather than it serving as a
direct stimulus to the plant. . . |
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