Abstract

                                Both the Scientists and the ryots have recognised for a long time the restrictive iufluence of season and have classified the varieties of paddy accordingly. They also found to their discomfiture that a slight change or delay due to unavoidable reasons in the normal growing season adversely affected the growth and yield. This deleterious effect is chiefly ascribed to the change in environment, as the genetic potentialities of the varieties remained the same. In this paper an attempt has been made to evaluate the effect of environment as expressed by daylength and temperature, on yield, duration and other agronomic traits like tillering, height, panicle and grain characters by delaying the time of sowing.

Key words :