Effect of Methyl Bromide and Hydrocyanic Acid Fumigation on the Germination of Rice1
Authors: STRONG, R. G.; LINDGREN, D. L.
Source: Journal of Economic Entomology, Volume 52, Number 4, August 1959 , pp. 706-710(5)
Publisher: Entomological Society of America
Abstract:Two varieties of rice, Calrose and Caloro, with a graded moisture range of 8, 10, 12, and 14%, were fumigated with methyl bromide or hydrocyanic acid in 100-cubic-foot gastight chambers. Exposure periods, dosages of fumigant applied, and temperatures during fumigation were varied. One-half of the seed samples received one fumigation; the others were fumigated twice. Two series of germination tests were made, the first within 5 days Following fumigation of seeds and the second after 84 days of postfumigation storage at 50° F.
Under the conditions of these studies the germination of rice was not affected by fumigation with hydrocyanic acid. Injury resulting from methyl bromide fumigations could be identified as dead seed. Little evidence of retarded emergence of rice seedlings was observed. Results from germination tests illustrate the interdependence of dosage, temperature, period of exposure, and moisture content of seeds in contributing to seed injury from methyl bromide fumigation, and the importance of repeat fumigation as a dependent variable. Varietal differences and post- Fumigation storage were the only variables considered that were found to be unimportant in contributing to seed injury from methyl bromide fumigations under the conditions of the study.
Document Type: Research Article
Publication date: August 1, 1959
- Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.
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