http://hortkb.weebly.com/

This Global Horticulture Knowledge Bank (or Global Hort Knowledge Bank) aims to provide credible, focused, High-demand and added value information to help people in developing countries. 

The Global Horticulture Knowledge Bank is an output of International Programs of the College of Agricultural and Environmental Sciences, University of California, Davis. The project is working with a number  of institutes and technical experts.

The Global Horticulture Knowledge Bank provides credible practical crop information on fruits, nuts, flowers and vegetables to help extension and development workers improve the lives of people in lesser developed countries

Links

 

US Based resources
University of California
International Programs, CA&ES, UC Davis Link 
UC Integrated Pest Management Link
UC Fruit and Nut Research & Information Center Link
UC Vegetable Research & Information Center Link
Postharvest
A list compiled by Dr Adel Kader (UC Davis) Link

Other US sources
Cornell Univ gardening resources Link
Horticulture Collaborative Research Support Program (Hort CRSP) Link
Univ Florida IFAS/Extension Link
Grow Veg (a commercial vegetable company) Link

For Africa
Infonet biovision Link

For India
TNAU Agritech Portal Link 

Global
World Vegetable (AVRDC) Link
Global Horticulture Initiative Link

Ask an Expert
These are two sites colleagues have sent that have the potential as good "Ask the expert" sites when other information avenues have been tried.