Institution: | (1) E. DuPont & Co., Central Research and Development Department, Glasgow 300, P.O. Box 6101, Newark, DE, 19714–61011, USA. Fax: 302 451 9138 e-mail: falianrd@esvax.dnet.dupont.com, US;(2) Experimental Station, P.O. Box 80328, Wilmington, Del., USA, US;(3) Agricultural Products Department, Experimental Station, P.O. Box 80402, Wilmington, Del., USA, US |