Texas A&M University-Kingsville

Personnel Profile

Dr. Juan Carlos Melgar, Assistant Professor


Juan Carlos Melgar was born in Jerez, Spain.  He studied Agricultural Engineering at the University of Cordoba (Spain) where he majored in Crop Production and Protection as an undergraduate. At the end of these studies, he developed his undergraduate thesis on the effects of saline irrigation in olive trees at the Department of Agronomy of this university. With this research, he got hooked on plant physiology and he started his PhD. His PhD research investigated the effects of the interaction of different abiotic factors in olive and citrus trees, in complementary research works that were developed in three different countries: Spain, Italy and the U.S. After his PhD, he joined the Department of Horticulture at the Citrus Research and Education Center at The University of Florida, where he worked on citrus stress physiology for almost three years. His research accomplishments developed insights on soil-water-plant relations, responses to salinity, water management and water-saving irrigation techniques that were published in both grower and high impact journals. Then he returned to Spain and worked for eight months as an associate researcher at the Estación Experimental de Aula Dei, a research institute of the Spanish National Research Council, where he developed research works on mineral nutrition in peach and pear trees. After this, he was appointed to the faculty at Texas A&M University-Kingsville Citrus Center in Weslaco in 2010, where he conducts research in citrus stress physiology and teaches graduate and undergraduate courses.

Curriculum vitae


B.S. in Agricultural Engineering, University of Cordoba, Spain, 2000.

Ph.D. in Crop Production and Fruit Tree Physiology, University of Cordoba, Spain, 2006.

Research Interests

Juan Carlos’ research goals are to solve problems in fruit tree physiology that can have significant economic, social and environmental impacts. At the same time, he is committed to inspiring and encouraging students to go beyond where they are by stimulating their interest and critical thinking.

Recent research efforts involve studies on water-saving irrigation strategies for citrus trees, mineral nutrition, and the development of novel agronomical practices to improve freeze and salinity tolerance of citrus trees. Juan Carlos has developed extensive collaborations with different research groups in countries such as Spain, Turkey, Colombia, China and India, and students visiting scientists from these countries have visited or are planning to visit his lab in the next future.

Outreach and Community Service

Juan Carlos’ outreach and community service activities include working with colleagues and students in greenhouse and field experiments. His professional involvement includes manuscript and proposal reviews for scientific journals, and service as consultant for growers with needs of agricultural extension services. Juan Carlos coordinates the Citrus Center Seminar Series, where professors and students from the research centers in Weslaco have the opportunity to present their research works to their colleagues. He also collaborates with the Weslaco ISD in helping high school students with their research projects for the science fairs and participates as a judge member in the district’s science fairs. He maintains an active membership in the American Society for Horticultural Science, in the Spanish Society for Horticultural Science and in the Subtropical Plant Science Society.

Teaching Appointments

Crop Physiology—Undergraduate level

Postharvest Physiology of Horticultural Crops—Graduate level

Ecology of Agricultural Systems—Graduate level

Communication and Dissemination of Results in Agriculture—Graduate level

Contact Information

Agriculture, Agribusiness & Environmental Sciences, Citrus Center
312 N. International Blvd., Weslaco, Tx 78596
MSC Texas A&M University-Kingsville
Kingsville, Texas 78363-8202
voice: 956.973.3003
fax: 956.969.0649
email: juan.melgar@tamuk.edu
Personal Website:

This page was last updated on: June 12, 2013