1: The pea crop, D R Davies 2: The nuclear genome, T H N Ellis 3: The plastid genome,T H N Ellis 4: Regulation of gene expression, P M Gilmartin 5: Genetic and developmental analysis of the seed, T L Wang and C L Hedley 6: Biochemistry and molecular biology of seed products, R Casey, C A MDomoney and A M Smith 7: Developmental mutants, I C Murfet and J B Reid 8: Molecular approaches to the study of diseases of peas, A Vivian 9: Root nodules, Rhizobium and nitrogen fixation, N J Brewin, M J Ambroseand J A Downie 10: Tissue culture and transformation, D R Davies and P M Mullineaux 11: Opportunities in relation to developments in plant biotechnology, D RDavies"