Dr. M.A.K. Mian is presenting a paper at the International Seminar on Climate and Environmental Challenges of 21th Century held at the University of Rajshahi during 7-9 December 2010. The title of the paper was " Phenological development, growth and yield of lentil genotypes under prevailing temperature at varying sowing time". BARI Mosur 3 showed the best yield performance at 25 November sowing. Optimum growing day degree was 1849 for the higest yield.