Project Number: 3611-22000-021-02
Start Date: Aug 01, 2007
End Date: Jun 30, 2012
Field studies to assess the effect of rest infections on yield are planted in June, whereas most tests to evaluate germplasm accessions and breeding lines are generally planted in mid-August to synchronize flowering with the fall period in which the local soybean rust epidemic is most likely to peak. Because the development of rust epidemics is heavily influenced by rainfall and duration of overnight dew periods during the growing season, these planting dates are optimum for the data to be collected from each type of study. Studies in which yield measurments are important are planted in four-row plots, and short single rows are typically used for germplasm evaluations. Breeding populations are also advanced at the NFREC with or without rust pressure. Greenhouse facilities are used year-round to rate resistance in resistance gene mapping studies and to analyze the reactions of resistant germplasm in a more controlled environment. The laboratory facilities and the NFREC are used exensively for microscopic analysis of reactions to rust infection and to isolate DNA from experimental plants.