油菜品种双向鉴定循回整理法的应用效果

The application effect of the arranging method of cycling identification in Brassica napus

采用油菜品种双向鉴定循回整理法,对双低油菜品种油研6号进行品种整理。结果表明,种子纯度从79%提高到98.3%,提高19.3个百分点。整理后的种子纯度较生产自留种纯度提高23%,其产量构成水平和抗性均明显提高;在大田生产中整理种亩产达134.1kg,较自留种增产8.6%;整理后的种子芥酸含量0.89%,硫甙含量28.77mol/g,油酸含量67.43%,含油量41.34%,符合优质油菜标准。油菜品种双向鉴定循回整理方法,操作简便易行,整理进度快、效果明显,既可确保良种不断生产供给,又可使种性得到不断提高。

By using the arranging method of cycling identification in two directions, Youyan 6 variety of Brassica napus with 'double low 'has been arranged continuously .The result showed that the seed purity had been improved from 79%to 98.3%. After arrangement, the purity of Youyan 6 increased 23% , the yield and resistance were obviously better than those of selfsufficient seed .The quality characters such as erucic acid content(0.89%), glucosinlate content(28.77mol/g),oleic acid content(67.43%) and oil content(41.34%) were accorded with the standard of high quality in rapeseed. This method is simple and easy to operate and practical effect is good .It not only could offer good seeds continuously, but also improve the variety purity.