This issue is dedicated to the memory of Myles J. Fisher (10 August 1935-27 May 2020), Australian ecophysiologist who after working at CSIRO in the Northern Territory and Queensland, Australia, joined the CIAT Tropical Pastures Program in 1985. Upon his retirement he was appointed CIAT Emeritus Scientist and was a member of the Editorial Board of Tropical Grasslands-Forrajes Tropicales since the journal´s inception. His friends and colleagues in the tropical forages scientific community will not forget him for his visionary pioneer role in the area of carbon sequestration by tropical pastures, his contribution to our understanding of factors affecting persistence of legumes in pastures and his thorough scientific thinking and pleasant personality. International Center for Tropical Agriculture (CIAT) retains copyright of articles with the work simultaneously licensed under the Creative Commons Attribution 4.0 International License (to view a copy of this license, visit creativecommons.org/licenses/by/4.0/). Accordingly, users/readers are free to share (to copy, distribute and transmit) and to remix (to adapt) the work under the condition of giving the proper attribution.