This review's objectives were to examine the structure and performance of the agricultural research and extension systems (public and private) at the central and provincial levels, identify successes as well as constraints to improving the system s effectiveness for fostering innovation, and propose options for further policy and institutional development, drawing on lessons from international experience. The review focused principally on nonplantation crops, although its main recommendations apply across the agricultural sector. This synthesis report summarizes the main findings of the review and builds upon them by adding some new elements. The conflict in Sri Lanka is explicitly recognized. Additionally, the implications of changes in the wider agricultural context for agricultural research and extension are explored, and have led to the adoption of an innovation systems perspective to organize the major findings