‘Uma’ (MO 16) and ‘Revathy’ (MO 17): Two promising rice varieties with seed dormancy

R. Devika, N. Rema Bai, S. Leena Kumary

Abstract


To evolve rice varieties with seed dormancy, hybridisation programmes were initiated at the Rice Research Station, Moncompu in 1985 using locally adapted varieties like MO 4 (‘Bhadra’), MO 5 (‘Asha’), MO 6 (‘Pavizham’), MO 7 (‘Karthika’), ‘Pokkali’, MO 1 and ‘Kuruka’. Selection up to the F6 generation based on general performance and seed dormancy yielded two cultures— KAU M 42-6-3 from the MO 6/‘Pokkali’ cross and KAU M 45-20-1 from the cross of culture 12814 with MO 6. These cultures performed consistently well in the yield trials and were, therefore, released by the State Seed Subcommittee in 1998 as ‘Uma’ (MO 16) and ‘Revathy’ (MO 17) respectively for use in Kerala.


Keywords


High yielding varieties; gall midge resistance; Kuttanad

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A KAU publication [CODEN: JTAGEI; ISSN 0971-636X; eISSN 0973-5399]