. A laboratory manual of soil bacteriology. Soil microbiology. SECTION XI SPECIAL METHODS For a detailed discussion of sterilization see one of the standard works on bacteriologic technic. Here only special phases of this subject will be considered. Seed Sterilization.—^Although a great number of methods employing various agents have been recommended for removing micro-organisms from seed, only a few of the more promising ones will be given. Where it is not neces- sary to render the seeds free of bacteria, but merely to destroy the majority of the flora, alcohol may be Fig. II.—Apparatu
. A laboratory manual of soil bacteriology. Soil microbiology. SECTION XI SPECIAL METHODS For a detailed discussion of sterilization see one of the standard works on bacteriologic technic. Here only special phases of this subject will be considered. Seed Sterilization.—^Although a great number of methods employing various agents have been recommended for removing micro-organisms from seed, only a few of the more promising ones will be given. Where it is not neces- sary to render the seeds free of bacteria, but merely to destroy the majority of the flora, alcohol may be Fig. II.—Apparatus for seed sterilization. Among the chemicals that have proved satisfactory for sterilizing seed, mercuric chlorid, hypochlorate of lime, and silver nitrate are the most commonly used. The effective- ness of these substances depends on many factors: strength of solution, time of exposure, temperature, pressure, and nature of the seed Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Fred, Edwin Broun, 1887-1981. Philadelphia, London, W. B. Saunders Company
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