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应用干旱敏感指数（ Ｓ Ｉ）、抗旱系数（ Ｄ Ｃ）、抗旱指数（ Ｄ Ｉ）分析白芥及三大类型油菜的子粒产量和产量性状的抗旱性，结合变差序列打分制和隶属函数综合评价各产量性状及品种的抗旱能力。结果表明，奥罗、白芥 １ 号和大辣芥抗干旱胁迫能力较强，白芥 ２ 号和白芥３ 号抗干旱胁迫能力较弱；在产量构成因素方面，各性状抗干旱胁迫的能力因品种而异，同一品种不同性状抗干旱胁迫的能力相差较大；利用产量性状进行抗旱系数，抗旱指数分析，结合隶属函数综合评价是鉴定品种抗旱能力的较好方法。
The drought resistance index (S I), drought resistance index (D C) and drought resistance index (D I) were used to analyze the drought resistance of grain yield and yield traits of Brassica juncea and three types of rapeseed. Evaluation of the yield traits and varieties of drought resistance. The results showed that the ability of resistance to drought stress of Orok, Baizai No.1 and Daizailangzha was strong, and the ability of drought resistance of Baiyezai 2 and Baizai 3 was weak. In terms of yield components, The ability of different traits of the same variety to resist drought stress varies greatly due to the variety. Using the yield traits to analyze the drought resistance index and drought resistance index, combined with the membership function comprehensive evaluation is a better way to identify the drought resistance ability of the varieties.