Rice is grown on 1.5 million ha in Maharashtra State, India. Of the total area under rice, about 56% is planted to fine and superfine varieties; the rest is under coarse-grained varieties. Early, medium-late, and late varieties, respectively, occupy about 40%, 40%, and 20% of the area in the state. Because fine-grained varieties are preferred, the Karjat rice research station developed Karjat 4, an early-maturing variety (115-120d), and Karjat 6, a medium-duration (130-135 d) line suitable to the varied agroecological conditions in the state.
Karjat 6 (KJT-12-6-25-9-13-50-13) was developed through the pedigree method. It involved a cross of Heera and Karjat 4. Recommended for commercial cultivation in Maharashtra in 2005, Karjat 6 is a semidwarf (95-100cm) variety having short, slender grains, 1,000-kernel weight of 13.30 g, and average grain yield of 3.5-4.0 t ha-1. The variety has 68.1% milling and 65% head rice recovery.