Lloyd Evans, a leading plant scientist, published extensively on the regulation of flowering and on crop production during a lifetime spent in research at the Commonwealth Scientific and Industrial Research Organisation (CSIRO). His significant achievements included the identification of a gibberellin plant hormone as a flowering regulator in the grass Lolium temulentum, the discovery of a synthetic gibberellin growth retardant that blocked endogenous gibberellin synthesis, and the discovery of a novel biological flowering clock in Pharbitis with a 12 h (semidian) period. In crops he established the impact on yield of photosynthate production and transport to competing sinks. Two of his books, Crop evolution: adaptation and yield and Feeding the ten billion, have had a major influence on agricultural research and policy. His ability to define research options led to many years of international advisory work. He was an Officer of the Order of Australia (AO) and was elected a Fellow of the Royal Society (FRS) and a Fellow of the Australian Academy of Science, subsequently becoming President of the latter.
This memoir was commissioned by the Historical Records of Australian Science and will appear in volume 27 (2016). The memoir is published here with minor amendments.
- © 2016 The Author(s)
Published by the Royal Society