The study evaluated the roles of ADP in the transfer of agricultural technologies among maize farmers in Lagos state, Nigeria. The primary data was collected through the administration of a well-structured questionnaire that consists of both open and closed ended questions. All the ADP staff involved in the transfer of technologies to maize farmers constituted the sample size, (71respondents). Both descriptive and inferential statistics was used to analyze the data. Descriptive statistic used includes frequency count and percentages while the inferential statistics used is the Person Product Moment Correlation (PPMC). The result revealed a mean age of 39.8years. In terms of extent of maize technology transferred, Use of organic manure was ranked first with Weighted Mean Score (WMS) of 2.5. Use of agrochemicals ranked second with WMS of 2.4. Next is Use of hybrid maize which ranked third with WMS of 2.3 while the use of lime ranked fourth with WMS of 2.1. The result of Pearson Product Moment Correlation shows that some available agricultural technologies on maize such as lime use (r = 0.523, p = 0.000); planting of hybrid maize seed (r = 0.303, p = 0.010); crib use (r = 0.426,  p = 0.000); silos use (r = 0.503, p = 0.068) and training on the safe use of agro-chemicals (r = 0.272, p = 0.79) were significantly related to the roles carried out by ADP in the transfer of these technologies to farmers. The study concluded that innovations on maize production are readily available in the Lagos state while inadequate funds and unstable government policies constituted the major constraints. It was therefore recommended that State government should see to providing more financial support to ADP staff to enhance their productivity.

Key words: Agricultural Technologies, Technology Transfer, Maize innovations, ADP Roles,  Maize Farmers