• International E-Conference on “Advances and Future Outlook in Biotechnology and Crop Improvement for Sustainable Productivity”, Keynote Lecture in session “Advances in Molecular Biology of Abiotic Stress Tolerance”, University of Horticultural Sciences, Bagalkot, India, November 2020 
  • Global Plant Council Workshop on “Enhancing Global Collaborations in Crop Science”, session on “Embedding Policy and Communication Programs in Research Collaborations”, ASA/CSSA annual meeting, Baltimore, Maryland, November 2018. Co-presented with graduate students Shannon King and Rachel Owen, and Prof. Jon Stemmle (Journalism)
  • Workshop on “Responses and Adaptations of Plants and Ecosystems to Changing Environments” (University of Missouri & Center for Agricultural Water Research in China, China Agricultural University), Beijing, China, August 2018
  • 10th Symposium of the International Society of Root Research, Plenary Lecture in session on “Water Relations”, Jerusalem, Israel, July 2018
  • Gordon Research Conference on “Salt and Water Stress in Plants”, session on “Root Responses to Abiotic Stress”, Waterville Valley, New Hampshire, June 2018
  • 2nd Workshop on “Plant Development and Drought Stress”, Asilomar, California, November 2017
  • InterDrought-V, session on “Plant Productivity under Drought – Vegetative Growth”, Hyderabad, India, February 2017 
  • South African Society of Botanists annual meeting, session on “Plant Science for Food and Feed Security”, Cape Town, South Africa, January 2017
  • University of Nebraska Plant Science Retreat, Keynote Lecture, Nebraska City, October 2016
  • University of the Western Cape (Cape Town, South Africa) / University of Missouri Partnership, 30th Anniversary Celebration, University of Missouri, September 2016
  • Purdue Plant Science Symposium, “An Interdisciplinary Approach to Abiotic Stress” (DuPont Plant Sciences Symposia series), Keynote Lecture, Purdue Univ., Indiana, August 2016
  • University of the Western Cape (Cape Town, South Africa) / University of Missouri Partnership, 30th Anniversary Celebration, Cape Town, South Africa, May 2016
  • Crop Science Society of America symposium on “Efficient Resource Utilization for Improving Crop Productivity and Environmental Stewardship”, Minneapolis, Minnesota, November 2015
  • Workshop on “Water and Food Security under Changing Environments” (111 Program, Chinese Ministry of Education), Beijing, China, June 2015
  • University of Missouri Interdisciplinary Plant Group /University of the Western Cape joint plant science symposium, Cape Town, South Africa, June 2015
  • Symposium on “Water for Agriculture: Challenges for this Century”, Center for Watershed Management and Water Resources, Univ. Missouri, April 2015
  • Society for Experimental Biology/Global Plant Council symposium and discussion forum on “Stress Resilience”, Foz do Iguaçu, Brazil, October 2015
  • Society for Experimental Biology annual meeting, symposium on “Roots for Global Food Security” in celebration of Bill Davies’ career, Keynote Lecture in session on “Roots and Abiotic Stress”, Manchester, UK, July 2014
  • 3rd Biennial Symposium and Short Course on “Plant Breeding for Drought Tolerance”, Colorado State University, June 2014 
    • i) Keynote Lecture 
    • ii) Lecture on “Physiology of root growth under water deficits: model systems to the field” 
  • Workshop on “Improving Water Use Efficiency in Agriculture from the Molecular Level to the Regional Scale” (111 Program, Chinese Ministry of Education), Beijing, China, June 2014 
  • University of Missouri Interdisciplinary Plant Group / Sao Paulo Research Foundation (FAPESP) joint symposium on Interdisciplinary Plant Science, Sao Paulo, Brazil, December 2013
  • Workshop on “Systems Biology of the Crop Root/Soil/Rhizomicrobiome”, Gates Foundation, Seattle, Washington, September 2013
  • InterDrought-IV, Perth, Australia, September 2013. Discussion panel member, session on “Future Challenges and Opportunities”
  • Journal of Integrative Biology Editorial Board meeting and symposium on Integrative Plant Biology, Lijiang, China, July 2013 
  • 21st International Plant Growth Substances Association (IPGSA) Conference, symposium on “Stress III. Environmental Limits on Food Production”, Shanghai, China, June 2013
  • Discussion panel member, “Agricultural Research at US Universities: The Global Challenge”, US Board for International Food and Agricultural Development (BIFAD) annual meeting, Univ. Missouri, March 2013
  • 4th Annual Agroforestry Symposium, “Floods and Droughts: Agriculture, Agroforestry and Natural Resources in a Changing Climate”, University of Missouri, Jan. 2013
  • Intl. workshop on “Food Security: Science, Technology and Policy” (Intl. Food Security Alliance), Keynote Lecture, Beijing, China, September 2012
  • 8th Symposium of the International Society of Root Research, Plenary Lecture, Dundee, Scotland, June 2012