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Articles

IN VITRO TOXICITY OF HNO₂ AND NH₃ IN PHYTOPHTHORA CAPSICI MYCELIUM GROWTH

Article number

532_30

Pages

225 – 230

Language

Abstract

In order to determine the toxic effects of HNO₂ and NH₃ solutions on Phytophthora capsici mycelium growth, experiments were carried out in vitro under differents concentrations (from 0 to 106 μM HNO₂ and from 0 to 471 μM NH₃) and treatment duration (6, 15 and 24 h). Cumulated growth recorded 3 days after HNO₂ treatment showed a lethal effect at 96 μM for 6 h of treatment, at 42 μM for 15 h, and between 21 and 42 μM with 24 h of treatment.
In contrast, NH₃ solutions from 0 to 471 μM had no lethal effect on mycelium growth, though concentrations from 235 μM had inhibitory effects on growth.

Publication

International Symposium on Chemical and Non-Chemical Soil and Substrate Disinfectation

Authors

P. Riga, X. Goikoetxea, S. Larregla

Keywords

Full text

https://doi.org/10.17660/ActaHortic.2000.532.30

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