Book reviewed in this article: Plant Biochemistry. Ed. by P. M. DEY and J. B. HARBORNE. In VitroHaploid Production in Higher Plants-Volume 4: Cereals. By S. MOHAN JAIN, S. K. SOPORY and R. E. VEILLEUX. Mycorrhizal Symbiosis. By S. E. SMITH and D. J. READ. Principles and Practice of Managing Soilborne Plant Pathogens. Ed. by R. HALL. Turfgrass Diseases: Diagnosis and Management. By G. L. SCHUMANN and J. D. MacDONALD. Seaweed Ecology and Physiology. By C. S. LOBBAN and P. J. HARRISON.