Aims of plant breeding, selection, hybridisation and heterosis, mutation and polyploidy breeding, role of genetic resources, and the improved varieties of rice, coconut, tea and rubber released in Sri Lanka.
Deshapriya Senevirathne. B.Sc. (Hons) Biology Special, University of Peradeniya — graduated with a class pass. All the content and lessons in A/L Biology on Paadama are reviewed by Deshapriya Senevirathne, and the lessons are taught by him.