(19)

(11)

EP 0 772 687 A2

(12)

(43) Date of publication: 14.05.1997 Bulletin 1997/20 (21) Application number: 95933706.0 (22) Date of filing: 26.07.1995

(51) International Patent Classification (IPC):  A01H 5/ 00( . ) C12N 15/ 82( . ) C12N 15/ 09( . ) (86) International application number: PCT/US1995/008977 (87) International publication number: WO 1996/004392 (15.02.1996 Gazette 1996/08)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE Designated Extension States: LT LV SI (30) Priority: 29.07.1994 US 19940282270 07.06.1995 US 19950483091 (71) Applicant: PIONEER HI-BRED INTERNATIONAL, INC. Des Moines Iowa 50309 (US)

(72) Inventors: BOWEN, Benjamin, A. Des Moines, IA 50310 (US) LOWE, Keith Johnston, IA 50131 (US) ROSS, Margot, C. Des Moines, IA 50265 (US) SANDAHL, Gary, A. Des Moines, IA 50265 (US) TOMES, Dwight, T. Cumming, IA 50061 (US) SONGSTAD, David, D. Urbandale, IA 50322 (US) GORDON-KAMM, William, J. Urbandale, IA 50322 (US) (74) Representative: Mercer, Christopher Paul, et al  Carpmaels & Ransford 43, Bloomsbury Square London WC1A 2RA London WC1A 2RA (GB)