A study was made on field germination of alfalfa seed treated with Di-Syston®(O,O-diethyl S-[2-(ethylthio)ethyl] phosphorodithioate) and phorate at 16, 32, and 64 ounces per 100 pounds of seed as drenches of liquid concentrates or impregnated in carbon powder with a sticker. Germination was slightly lower for seed treated with phorate than with Di-Syston but both treatments resulted in an average of only 2.78% less than that of untreated seed. Seed treated at the 64-ounce rate had a slightly lower germination than at the 16-ounce rate. No differences were noted between seed treated with the carbon powder and liquid concentrate formulations. Storage of treated seed for more than 3 months reduced germination only 6.7% below that of untreated seed.
Document Type: Research Article
Publication date: February 1, 1962
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