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EP 0 521 915 A1

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(43) Date of publication: 13.01.1993 Bulletin 1993/02 (21) Application number: 91906123.0 (22) Date of filing: 14.03.1991

(51) International Patent Classification (IPC):  A01H 5/ 00( . ) C12N 5/ 10( . ) C12N 15/ 82( . ) C07K 14/ 415( . ) C12N 15/ 09( . ) (86) International application number: PCT/GB1991/000397 (87) International publication number: WO 1991/013991 (19.09.1991 Gazette 1991/22)

(84) Designated Contracting States: AT BE CH DE DK ES FR GB GR IT LI LU NL SE (30) Priority: 14.03.1990 GB 19900005772 (71) Applicants: ADVANCED TECHNOLOGIES (CAMBRIDGE) LTD. London SW1P 3JE (GB) AGRICULTURAL GENETICS COMPANY LIMITED Cambridge CB4 4GG (GB) BIOTAL LIMITED Cardiff CF4 5DL (GB) BP NUTRITION LIMITED London EC2M 7BA (GB) CIBA-GEIGY PLC Macclesfield, Cheshire SK10 2NX (GB) IMPERIAL CHEMICAL INDUSTRIES PLC London SW1P 3JF (GB) RHONE-POULENC LTD Dagenham Essex RM10 7XS (GB) SCHERING AGROCHEMICALS LIMITED Hauxton Cambridge CB2 5HU (GB) Nickerson International Seed Company Limited Cambridge CB4 4WE (GB) TWYFORD SEEDS LIMITED London W1N 9AF (GB) UNILEVER U.K. CENTRAL RESOURCES LTD Blackfriars London EC4P 4BQ (GB)

(72) Inventors: LLOYD, Julie Carol Wivenhoe Park, Colchester CO4 3SQ (GB) JOHN, Ulrik Joslin, S.A. 5070 (AU) (74) Representative: Woods, Geoffrey Corlett  J.A. KEMP & CO. 14 South Square Gray's Inn London WC1R 5LX London WC1R 5LX (GB)