Dr. Li Dazhi

: Professor & UC Extension Specialist in Plant Pathology

: National Center for Citrus Improvement, Hunan Agricultural University(HNAU), Changsha,Hunan 410128, P. R. China


Studied for bachelor degree from 1990 to 1994 in HNAU.

Studied for Master degree from 2000 to 2003 HNAU .

                                    Studied for the Ph.D. degree from 2003 to 2007, supervised by Prof. Ziniu Deng with the thesis entitled “Isolation and Expression Analysis of Gene Encoding PM-Type Ca2+-ATPase”

Affiliation: Assistant at HNAU from 1995 to 2000 ;

Lecturer at HNAU from 2000 to 2007 ;

Associate professor at HNAU from 2007.

Research activities      –  Breeding for disease resistance by molecular technologies;

– Identification of genes which against Citrus canker (Xanthomonas axonopodis pv. citri) from Chinese citron and its hybrids ;

–   Identification of genes induced by virus and viroid of fruit tree.

Prof. Houjiu Wu

: Senior Researcher, Deputy Director

: Citrus Research Institute of Chinese Academy of Agricultural Sciences (Southwest University), Beibei, Chongqing 400712, China,

Senior Researcher, Deputy Director of National Research Center for Citrus Engineering and Technology, serving as Executive Director of the China Beverage Industry Association, its Deputy Director of the Technical Committee, member of Standards Committee; Vice President of Fruit and Vegetable Juices Branch.

President of Nursery Branch of China Society of Citriculture, Executive Director of Fruit and Vegetable Processing Branch of the Chinese Society of Food Science and Technology, and Executive Director of Agricultural and by- Products of Processing Storage Branch of Agricultural Society of China; have engaged in the citrus breeding and processing for more than 40 years and published more than 100 papers; editor and edited 10 books of citrus science and technology .

Veronica Herrera

: Horticultural Engineer

: the Catholic University of Valparaiso.

With over 30 years of experience in the fruit industry, specialized in the nursery area. Throughout my career I have been able to work in different management positions as general administration, operations, commercial and plant production.  I have also been involved in different work teams, from direct labor to specific and highly trained work groups, including applied researchers in different institutions.

I am currently working for the Nursery of the Catholic University of Valparaiso, and as a private consultant for different groups of growers in Research and Development with focus on new varieties.  I am also part of several Direction Boards of mixed public and private funding for genetic improvement and evaluation programs, also I am currently the President of the ISCN.  


Prof Xiaochun Zhao

: Southwest University in China


Xiaochun Zhao. Awarded PhD in 1999 from University of Sydney, Australia. Worked in Plant Breed Institute, University of Sydney on plant molecular genetics, plant tissue culture and breeding for over 10 years.

Employed by Southwest University in China from 2012 as a professor to work on citrus germplasm evaluation, molecular genetics and breeding in Citrus Research Institute.

Postal address: Citrus Research Institute, Xiema, Beibei, Chongqing, PR. CHINA, 400712

Scott McKenzie

: General manager

: Cederberg Nursery

I studied a BscAgric at the University of Stellenbosch. At the same time I started working at DuRoi nursery during any vacation time I had. In my final year of studies I was offered the position to run Cederberg Tree Nursery. I therefore split my final year of studies in two and took over management of the Nursery.
I have now been General manager of Cederberg for 3 years. In this time we have increased capacity and therefore production from 100 000 trees per annum to 800 000 trees per annum. For the last year I have also been giving half of my time to Citrogold (a subsidiary of Biogold) as technical manager for Southern Africa.

Nate H. Jameson

: President of Brite Leaf Citrus Nursery

: Brite Leaf Citrus Nursery

Nate Jameson is President of Brite Leaf Citrus Nursery in Lake Panasoffkee, Florida. Nate earned a Bachelor of Science degree in Agricultural Operations Management from the University of Florida in 1992, where he also met his wife Anna. They have been married for 24 years and have two sons who are currently studying agriculture at the University of Florida. Together they started the nursery in 1998, Balm, Florida.
In 2006, due to Citrus Canker and HLB, they relocated about 1 ½ hours north to an isolated location about 25 miles from the nearest commercial citrus grove. Brite Leaf Citrus Nursery is a fully enclosed protected culture system producing both commercial and ornamental citrus in a semi-hydroponic production system, utilizing coconut coir substrate and drip irrigation/fertigation

Dr Nerida Donovan

: citrus pathologist

: New South Wales Department of Primary Industries

Nerida Donovan graduated from the University of Sydney with a Bachelor of Science in Agriculture in 1995 (Hons 1, University medal) and a PhD in Agriculture in 2001. Since 1999, Nerida has been employed as a citrus pathologist with the New South Wales Department of Primary Industries based at the Elizabeth Macarthur Agricultural Institute (EMAI) near Sydney.

Nerida runs a coordinated citrus pathology program involving research, diagnostics, extension and industry service work on endemic and exotic pathogens of citrus. The citrus pathology team has a national role and works closely with the Australian citrus and nursery industries, which includes pathogen testing for the Auscitrus propagation scheme and the National Citrus Repository Program.

Nerida collaborates with horticulturists on general citriculture projects including nursery management, varietal evaluation and soil health. Through Australian aid projects, Nerida has contributed to capacity building of international scientists and development of improved programs for germplasm maintenance and nursery management in developing countries. 

Dr. Kim Bowman

: a citrus breeder, research geneticist, and lead scientist

: USDA, ARS, Fort Pierce, Florida, USA

Dr. Kim Bowman is a citrus breeder, research geneticist, and lead scientist with USDA, ARS, Fort Pierce, Florida, USA. His research effort is focused on the development of outstanding new citrus rootstock cultivars, and the advancement of associated knowledge and technology.   He has released 10 new hybrid citrus rootstock cultivars over the last 15 years that have filled critical needs. Several of these rootstocks have become important in the Florida industry, and are considered some of the best current rootstocks for use in Florida.

Strong commercial use of four of these rootstocks (US-802, US-812, US-897, and US-942) accounted for nursery propagation of 3,326,691 trees in Florida from 2014-16, or more than 20% of all propagations.   Numerous associated research projects are underway, with special emphasis on studies of huanglongbing disease (HLB) and associated gene expression and metabolic effects, and the development of HLB-tolerant rootstocks.

Other research is focused on propagation methods for new citrus rootstocks, including improving methodology for cutting propagation, treatments to improve growth of budded trees in the nursery, and comparisons of rootstocks propagated by seed, cuttings, and micropropagation. Many aspects of the research are being supported by grants from Florida CRDF and USDA NIFA.

Jose Lima

: Nursery director

: Wonderful citrus


Nursery director for Wonderful citrus overseeing the production of 1.2 million citrus trees in 3 different facilities in the United States. Grew up in the citrus nursery business and has been working as a professional nurseryman since 1999. Jose, has worked in Brazil, Florida and currently is based in Visalia, California.
He has a bachelor in sciences with major in Citrus and a Masters in Citrus. He is married to Fernanda Lima and has two children, Lucas, 10, and Julia, 8.



Juan E. Ortúzar

: Research and Development Manager.


Juan E. Ortúzar obtained his degree in Agriculture with a major in Fruit Culture at the Universidad Católica de Chile in 1990. In 1994 he got his M.Sc. in Plant Science at University of California in Riverside.


Upon his return to Chile he started an academic career as Professor of Subtropical Fruit Production at the College of Agronomy of the Universidad Catolica de Chile. From 1995 to 2004, Mr. Ortúzar conducted several research projects on factors that determine fruit quality of Navel Oranges and Clementines, from climatic zones to management and irrigation.


Throughout his career Mr. Ortuzar has consulted for many growers in orchard planning, cultural practices and harvest.


In 2004 left the University to join AGRICOM, one of the main Citrus and Avocado exporting companies in Chile. Within the company Mr. Ortuzar has held different positions from Citrus production manager to his current position as Research and Development Manager.


His main activity today relates to the early testing and commercial scaling of new varieties and rootstocks of Citrus and Avocados.


Since the formation of the Chilean Citrus Committee in 2010, Mr. Ortuzar has served as its Chairman.