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Updated: Aug 24, 2026

Procedures of Laboratory Fumigation for Pest Control with Nitric Oxide Gas
Published on: November 24, 2017
Effects of nitrogen dioxide pollution on the growth of three fern species
T W Ashenden1, S A Bell, C R Rafarel
1Institute of Terrestrial Ecology, Bangor Research Unit, University College of North Wales, Deiniol Road, Bangor, Gwynedd LL57 2LQ, UK.
Abstract:
The effects of exposing plants of Dryopteris filix-mas (L.) Schott, Phyllitis scolopendrium (L.) Newman and Polypodium vulgare L. to 60 nl litre(-1) (122 microg m(-3)) NO(2) for 37 weeks were investigated in a closed chamber fumigation system. There was no effect of NO(2) on the numbers of fronds produced for any species at any time during the exposure period. However, at the end of the study, there was a lower dry weight yield of green shoots of D. filix-mas and P. scolopendrium and a higher yield of green shoots of P. vulgare for plants in the NO(2) treatment as compared to control plants. These differences in shoot dry weights were not accompanied by an effect of NO(2) exposure on total plant dry weights.
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