International Plant Propagators Society: IPPS - Southern Region
Serve as Editor and a member of the Board of Directors.
American Society of Horticultural Sciences: ASHS
Vice-President, International Division, and a member of Board of Directors (2001-2003).
ASHS Working Groups and Committees:
Plant Propagation WG; Rhizosphere WG; International WG; Continuing Education Committee, chair; Horticulture Certification Board; International Advising Council.
Texas A&M University: TAMU
Serve on the following committees: University Faculty Development Leave Committee, Graduate Enhancement Committee, Graduate faculty representative, Graduate committees as a Chair and member.
Chair and coordinate Graduate Seminar program, Dept of Horticultural Sciences
TAMU Faculty Senate (98-00)
Mexico: CINVESTAV Plant Biology Institute, Irapuato, Mexico
Colegio de Postgraduados, Montecillo, Mexico