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以改良后的上海黄籽白菜型地方种为母本，与引自澳大利亚的黄籽双低品种Ｊｕｍｂｅｃｋ杂交，成功地选育出了高产、优质、多抗、早熟的白菜型油菜新品种扬油三号。试验试种结果表明：该品种产量高，一般产量可达１８７５～２２５０ｋｇ／ｈｍ２。品质优，芥酸、硫甙含量分别为０．２４％和２９．１４μｍｏｌ／ｇ，符合国家双低标准。熟期早，在扬州常年于５月１５～１８日成熟，适宜作棉花前茬、单季水稻秧池田和场基地种植。抗逆性强，抗（耐）病性、抗倒性均好于对照扬油二号。在选育方法上，采用先高产后优质的技术路线，低世代注重产量、熟期、抗性等性状的选择，以自由授粉为主，入选单株较多，保证优质基因不丢失，高世代通过测定获得双低材料，再经几代的混合选择，逐步稳定。
The improved Shanghai yellow seed cabbage type of local species as the female parent, and the yellow derived from Australia, a double-breed Jumbeck crossbred successfully bred high yield, high quality, multi-resistance, precocious cabbage rapeseed new varieties of oil Number three. The results of trial planting showed that the yield of this variety was high, and the general yield could reach 1875 ~ 2250kg / hm2. Excellent quality, erucic acid, glucosinolate content were 0.24% and 29.14μmol / g, in line with national double low standards. Early maturity in Yangzhou perennial May 15 to 18 mature, suitable for cotton before crop, single-season rice seedling field and field base cultivation. Strong resistance, anti (resistance) disease, lodging resistance are better than the control Yang You II. In breeding methods, the first high-quality technical route after the first high-yield, low generation pay attention to yield, maturity, resistance and other traits to choose, mainly free pollination, selected more plants to ensure that high-quality gene is not lost, Obtained through the determination of double-low material, and then after several generations of mixed choice, and gradually stabilized.