- Assistant professor Cornell University, Ithaca, New York, 1966-1971, associate professor, 1971-1978, professor, since 1978. Visiting scientist Institute for Cancer Research Fox Chase Cancer Center, Philadelphia, 1972-1973. Visiting plant physiologist plant growth laboratory University California, Davis, 1983.
Member American Association for the Advancement of Science, American Society Agronomy (Northeast teaching award 1989), Crop Science Society of America (board directors and chair Division C-4 since 1991), American Society Plant Physiologists, American Institute Biological Sciences, American Association Cereal Chemists, American Chemical Society, Tissue Culture Association, New York Academy of Sciences.
1966 - 1971