Contents

15 January 1999
Vol 283, Issue 5400

About The Cover

Cover image expansion

COVER The cover photograph illustrates a range of rice varieties. Such diversity provided the grist for plant breeders who developed today's high-yielding strains. Now the world needs another boost in grain harvests, and agricultural researchers are pinning their hopes on biotechnology. See the News stories beginning on page 310. [Photo: International Rice Research Institute and Consultative Group on International Agricultural Research]