Mr. D. S. Sampath participated in the 4th symposium organized by the Young Scientists Forum (YSF) of National Science and Technology Commission (NASTEC) on 23rd January 2015 at Hector Kobbekaduawa Agriculture Research and Training Institute (HARTI), No.114, Wijerama Mawatha, Colombo 7. Nine technical sessions were conducted during this conference with three parallel sessions as a time.