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通过人工杂交将澳大利亚引进的低芥酸品系Ｚｅｍ－１的低芥酸基因导入芥菜型三系和云南地方优良品种，分别获得芥酸含量低、不育性状稳定的细胞质雄性不育系江矮Ａ和恢复系８８—１２２。江矮Ａ与８８—１２２组配的杂交组合江矮Ｄ１优势强，株型较矮而紧凑，耐旱、耐瘠，适应性较广，高产稳产，油酸含量３５．４１％，亚油酸３３．０６％，芥酸２．３９％，含油量４３．４８％，恢复株率９５％以上。１９９５～１９９６年全省旱地区试平均单产２０９０．１ｋｇ／ｈｍ２，较昆明高棵增产７６．２％，较芥油一号增产７．９％。
Low-erucic acid gene of Zeamal low-erucic acid strain introduced into Australia was introduced into elite Brassica juncea and Yunnan local hybrids through artificial crosses to obtain cytoplasmic male sterile line Jiangai A with low erucic acid content and stable sterility, respectively And Recovery Department 88-122. River dwarf A and 88-122 with a combination of combinations of short dwarf D1 superiority, compact and compact plant type, drought tolerance, barren, wide adaptability, high and stable yield, oleic acid content of 35.41%, linoleic acid 33.06%, erucic acid 2.39%, oil content 43.48%, recovery rate of more than 95%. In 1995-1996, the average yield per unit area of dry land in the province was 2090.1 kg / hm2, 76.2% higher than that of Kunming and 7.9% more than that of Juglans.