K. BAYYAPU REDDY, V. CHENGA REDDY, M. LAL AHMED and K.V. SIVA REDDY. STUDY OF COMBINING ABILITY ANALYSIS AND GENE ACTION FOR SEED COTTON YIELD AND FIBRE CHARACTERS IN UPLAND COTTON (Gossypium Hirsutum L.). J. Res. ANGRAU 2017, 45 (1), 22-31.