(19)

(11)

EP 0 543 837 A1

(12)

(43) Date of publication: 02.06.1993 Bulletin 1993/22 (21) Application number: 91913242.0 (22) Date of filing: 17.07.1991

(51) International Patent Classification (IPC):  A01H 1/ 02( . ) A01H 1/ 04( . ) (86) International application number: PCT/AU1991/000319 (87) International publication number: WO 1992/001366 (06.02.1992 Gazette 1992/04)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 17.07.1990 GB 19900015671 (71) Applicant: PACIFIC SEEDS PTY. LTD. Toowoomba, QLD 4350 (AU)	(72) Inventor: SMART, Geoffrey Frank Toowoomba, QLD 4350 (AU) (74) Representative: Huskisson, Frank Mackie, et al  ICI Group Patents Services Dept. PO Box 6 Shire Park Bessemer Road Welwyn Garden City Herts, AL7 1HD Welwyn Garden City Herts, AL7 1HD (GB)