Evaluation location: Minnesota, United States
Descriptive characteristics, agronomic performance, seed composition and disease reaction data of soybean accessions FC 01.547 to PI 266.807 in maturity groups 000 through 0 was recorded. Also included are cultivars, in these same maturity groups, developed at public institutions in the United States and Canada, and released by 1966. Descriptive data were obtained from observations of plants and seeds at Urbana, and a chlorosis score obtained from single-row plots grown in a high-lime field near Lamberton, Minnesota, in 1964. Performance data were gathered from a test planted om May 24, 1963 at St. Paul, MN (45.0 N. lat.). Maturity group 000 had not yet been designated when this evaluation was conducted, so accessions were tested as Groups 00 and 0. Two replications of each maturity group were grown in plots two rows wide and 2.4 m long, with 90 cm between rows. All original yield per acre values have been converted to megagrams per hectare at 13 percent moisture. Plots were blocked by maturity group to minimize competition effects. A composite sample from the two replications was used to obtain seed composition data. Protein percentages were obtained using the Kjeldahl method. Oil percentages were determined by the extraction method. Methionine values were obtained using Krober's modification of the McCarthy-Sullivan colorimetric method using enzymatic hydrolysis. Fatty acid composition was obtained using the spectrophotometric method of Collins and Sedgwick.