Author(s): B. SRINIVAS, D. PADMAJA, Y. CHANDRAMOHAN, T. KIRAN BABU, S. THIPPESWAMY AND S. LAXMAN

Abstract: 20 rice cultures were evaluated under aerobic condition at Regional Agricultural Research Station, Jagtial during kharif, 2016. High heritable estimates were observed for all the 7 traits studied under this aerobic condition. High values of heritability and genetic advance values for important yield attributes viz., effective bearing tillers/M² (59.70, 28.23), 1000 grain weight (95.00, 37.74) and number of grains panicle-1 (75.90, 57.52) indicated that these traits were under the control of additive genes. Except 1000 grain weight, all the traits exhibited significant and positive correlations with yield and late maturity was identified as preferable for increasing the yields under aerobic situations. Genotypes from cluster I and IV could be used as parents in crossing programmes for development of varieties suitable for rainfed situation. Present experimental material exhibited greater divergence for 1000 grain weight (41.05%) and days to 50% flowering (28.00%). JGL 28815 and JGL 28833 were identified as resistant lines for brown spot disease and needs further screening to be used as potential donors.

DOI: 10.22271/09746315.2021.v17.i1.1413

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