Kairala (Ptb49), a high-yielding rice variety with multiple resistance from Kerala, India
1994
Rosamma, C.A. | Elsy, C.R. | Dev, V.P.S. | Rajan, K.M. (Regional Agricultural Research Station, Pattambi, Kerala (India))
KAU8754, a promising culture isolated from the cross IR36/Jyothi, showed high yield potential and moderate to high levels of resistance to leaf blast, neck blast, sheath blight, gall midge biotype 1 and 4, and whitebacked planthopper. This elite line was released as Kairali (Ptb49) in 1993. The variety was highly promising in station trials from 1987 to 1991, with a mean yield of 4.1 t/ha. In the 1991-92 kharif (dry) season, the variety yielded a mean of 5.2 t/ha across 23 locations in the All India Coordinated Trials, indicating high adaptability to different soil and environmental conditions. The mean yield of Kairali was 500 kg/ha higher than Ratna, the check variety. Grain is long bold with red kernels. Milling and cooking qualities are excellent. With a duration of 110-115 d, the variety is recommended for all three rice-growing seasons of Kerala (Kharif, rabi [wet], and summer)
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