Abstract

Rice culture AD 94010, a derivative of the cross ADT 38/CO 45 was released as ADT(R) 46 in January 2002 for general cultivation in Thaladi / late Samba (September sowing) season of Tamil Nadu except Virudhunagar, Ramnad, Sivaganga, Chennai and The Nilgris. Its overall mean grain yield in 210 trials (1995-2000) was 6178 kg hn with 4.7, 8.2 and 7.0 per cent increased yield over the checks ADT 38, CO 43 and ASD 19 respectively. Its biological yield was 15.8 t hn (6.1 t of grain and 9.7 t of straw) and potential yield was 12.4 t hn. ADT(R) 46 is an erect, semi dwarf in stature with strong culm, non lodging habit and matures in 135 days. It has field resistance to stemborer and leaf folder. The rice is long slender, white with high milling (72%), head rice recovery (61.5%), crude protein (9.08%), amylose (30%) and soft gel consistency, with good linear elongation ratio (1.76 times) after cooking. It has acceptable organoleptic preferences. ADT(R) 46 is an alternate variety for ADT 38.

Keywords: Rice, ADT ® 46, medium duration variety, long slemder rice.