Abstract

                                A new rice variety ASD 19 (AS 781/1) has been developed from the Rice Research Station, Tamil Nadu Agricultural University, Ambasamudram, for southern districts of TamilNadu. ASD19 recorded a mean yield of 5.81/ha in 127 days (240 trials). It outyielded IR 20 by 14.2 per cent. ADT 39 by 8.4 per cent, C043 by 11.9 per cent and Ponni by 13.2 per cent. The biological yield of ASD 19 is 16.5 t/ha (5.8 1 of grain; 10.7 Uha of straw) and its potential grain yield is 11.0 t/ha. It is semidwarf in stature with well exserted panicles. Grain is short slender white rice with 9.59 percent protein content. ASD 19 is moderately resistant to blast and moderately tolerant to carly drought. ASD 19 is suitable for October sowings in Pishanam of Southern districts in place of IR 20 and ADT 39.

Key words : Rice Medium Duration, Pishanam, Soil N, Short Slender Rice.