"Physiology of Crop Yield would be useful to any scientist who works to integrate and better understand growth, development and yield from a perspective of whole plant physiology. This is a much needed and timely publication." P.V. Vara Prasad, Kansas State University "Hay and Porter have produced an excellent book, well-suited for undergraduate teaching and for those seeking an overview of processes contributing to crop yield. They even tell us how long the sun needs to shine to deliver a bowl of breakfast cereal." Tim Wheeler, University of Reading "Although described as the second edition of An Introduction to the Physiology of Crop Yield, which was authored by R. Hay and A. J. Walker (1989). The Physiology of Crop Yield is completely rewritten and focuses more explicitly on quantitative prediction of Crop growth. The Physiology of Crop Yield contains numerous line drawings and tables, as well as 30 pages of reference. The overall layout and design of text, tables, and figures follows that of traditional textbooks...the text seems well suited for an upper-level undergraduate course with a pre-requisite of plant physiology." Jeffrey W. White reproduced from Crop Science "This book extensively covers the theoretical aspects of crop physiological processes...It is useful for understanding and interpreting agronomic phenomena and therfore clearly has a considerable value to advanced students, teachers and scientists in the field of agronomy, crop management and even plant breeding. The array of literature cited is broad and also up-to-date. The Order of presentation is logical and comprehensive overviews are given...it remains an excellent reference that should be recommended for any teaching of crop phsiology at the graduate level." Annals of Botany, 1-2, 2007