江油19选是我公司1975年从江油19号中选出一早熟优良单株,采取隔离定向单株系统选育,1979年育成的。比原品种亩增产40.7%,早熟4天,千粒重(5.1克)高0.4克。抗病毒病能力较强,分枝部位低15.4厘米。1980—1982年参加四川省油菜品种(早熟组)区域适应性鉴定试验,经方差分析,三年31个点次平均亩产141.12公斤,比对照川油花叶高12.28公斤,增产9.53%,居全省第一位。几年来累积约推广50万亩以上,一般亩产150公斤左右,高的达200公斤左右。特征特性:伸长茎叶,叶片椭 Jiangyou 19 election is my company in 1975 from Jiangyou No. 19 in the election of a precocious fine single plant, isolation and orientation of single plant system selection, bred in 1979. Mu than the original varieties 40.7% increase, 4 days early maturity, grain weight (5.1 grams) 0.4 grams high. Strong anti-virus disease, branches 15.4 cm lower. 1980-1982 Participate in the regional adaptability test of rapeseed varieties (precocious group) in Sichuan Province. According to variance analysis, the average yield per mu at 31 points for three years was 141.12 kg, which was 12.28 kg higher than that of the control, The province’s first. Over the past few years to promote about 500000 acres of above, generally about 150 kilograms per mu, high up to 200 kilograms. Features: Elongate stems and leaves, leaf blade oval