Journal article
Toxicity of Root-Applied Sulphite in Zea Mays
Zea mays was grown in nutrient solution with different concentrations of sulphite and sulphate (0, 5, and 10 mM) at pH 5 or 7, with or without aeration, for five days. Sulphite injured the plants, especially at low pH. Lack of aeration increased the sulphite injury of the plants at the high pH. in the aerated solutions, sulphite concentrations approached zero after five hours, while the unaerated solutions still contained sulphite after four days.
Very little sulphite was found in the plants. The results indicate that the toxicity to the plants of the different chemical species of the sulphite in the solution decreases in the following order: SO2 (aq) > HSO3 (-) > SO3 (2-).
Language: | English |
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Publisher: | Kluwer Academic Publishers |
Year: | 1987 |
Pages: | 12-16 |
Journal subtitle: | Official Journal of the Society for Environmental Geochemistry and Health |
ISSN: | 15732983 and 02694042 |
Types: | Journal article |
DOI: | 10.1007/BF01811111 |