(19)

(11)

EP 0 831 720 A1

(12)

(43) Date of publication: 01.04.1998 Bulletin 1998/14 (21) Application number: 96919030.0 (22) Date of filing: 03.06.1996

(51) International Patent Classification (IPC):  A23K 3/ 02( . ) C12N 1/ 20( . ) A23K 3/ 03( . ) (86) International application number: PCT/US1996/008384 (87) International publication number: WO 1996/038052 (05.12.1996 Gazette 1997/01)

(84) Designated Contracting States: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE (30) Priority: 01.06.1995 US 19950457343 (71) Applicant: PIONEER HI-BRED INTERNATIONAL, INC. Des Moines, Iowa 50309 (US)	(72) Inventors: RUTHERFORD, William, M. Des Moines, IA 50310 (US) HINDS, Mark, A. Minburn, IA 50167 (US) DENNIS, Scott, M. Urbandale, IA 50322 (US) ROGERS, Michaela, G. Olney, MD 20832 (US) ZIMMERMAN, Cindi, S. Altoona, IA 50009 (US) (74) Representative: Goldin, Douglas Michael, et al  J.A. KEMP & CO. 14 South Square Gray's Inn London WC1R 5LX London WC1R 5LX (GB)