Vol. 11, Issue 11 (2022)

Thirty-five varieties of Mustard [Brassica juncea (L.) Czern & Coss] were evaluated for stability over three different environments created by three different dates of sowing during rabi 2017-18. Environment wise analysis of variance revealed that in all three environments significant differences were observed for all the characters. The stability analysis following Eberhart and Russell (1966) model revealed that based on stability parameters Varieties RGN-48, RGN-73, Maya, PCR-7, CS-52 and RH-749 were stable and suitable for growing because these had high mean, regression coefficient equivalent to unity and S²d were non-significant and near to zero. Thus, these varieties are suitable over wide range of environment conditions. Varieties RGN-13, RGN-229, RGN-236 and RGN-303 also having superior performance and responsive to optimum sowing conditions as they exhibited greater mean with significantly higher regression coefficient. Thus, these varieties namely-RGN-48, RGN-73, Maya, PCR-7, CS-52, RH-749, RGN-13, RGN-229, RGN-236 and RGN-303 and can be used in hybridization programme to produce genetically superior gene pool.