HomeInternational Rice Research Notesvol. 27 no. 2 (2002)

NDR2030: A Promising New Rice Variety for Mid-early Transplanted Irrigated Areas of Eastern India

R. S. Verma | J. L. Dwivedi | R. N. Vishwakarma

Discipline: Agriculture

 

Abstract:

Areas cultivated to existing highyielding varieties with 120-d maturity in irrigated transplanted areas are shrinking because of disease (bacterial leaf blight and sheath rot) and insect (Gandhi bug and leaffolder) pressure in eastern Uttar Pradesh. New varieties for such areas are needed. NDR2030 (IET15084) was developed following the pedigree method from the cross Ratna/Saket 3//IR36. It had stable yields from 1996 to 1999, outyielding national checks Shasyashree and IR64 by 25% and 19.2%, respectively, in multilocation tests conducted at 64 locations in various states (Table 1). Grain yield of NDR2030 ranged from 6.2 t ha–1 (Moncompu in Kerala State) to 9.5 t ha–1 (Karnal in Haryana State), with an all-India average yield of 5.1 t ha–1. NDR2030 has intermediate plant height (100 cm), possesses strong and sturdy culms, and flowers in 90-95 d. It is resistant to gall midge 1, moderately resistant to whitebacked planthopper (WBPH) and gall midge biotype 2, and moderately resistant to bacterial leaf blight and sheath blight. Besides its proven yield potential and high degree of disease and insect resistance, it has long slender grains (length-breadth ratio of 3.06) with transluscent kernel appearance and 1,000-grain weight of 26 g.