Abstract

                                Rice culture AD 93013, a derivative of IR 50/ Improved White Ponni was released as ADT 43 during January 1998 for general cultivation in Tamil Nadu. It recorded a mean yield of 5933 kg ha' in 110 days with 6.0, 6.2 and 6.5% higher yield than those of IR 50. ADT 36 and ASD 18 respectively. The biological yield of ADT 43 was 14.5 t ha¹ (5.9 t of grain and 8.6 t of straw) and its potential grain yield was 10.0 t ha. It is semi dwarf in stature with medium slender white rice finer than improved White Ponni. ADT 43 is resistant to Green leaf hopper and field tolerant to stem borer and Gallmidge. The rice possess high amylose content (> 25%) with good linear elongation (1.72 times) and high volume expansion ratio (4.6) after cooking. It is suitable for growing in the first crop season (Sornavari/Kar/ Kuruvai) of Tamil Nadu except Kanyakumari and Tuticorin districts.

Key words : Rice, Early duration, High yielding, High quality, Medium slender rice