油菜是我国主要经济作物之一,但多为高芥酸油菜。随着低芥酸油菜品种的选育,推广和引进,急需有一个适应基层需要的鉴定低芥酸油菜籽的方法。我们在资料的基础上,对影响该法准确度的关键进行了试验,使方法的准确度,灵敏度和分辨率均获得较大改善。芥酸含量在1～10%之间,其相对标准偏差<20%。2～5%的芥酸,其检测灵敏度约为 Rape is one of the main cash crops in China, but mostly is high erucic acid rape. With the breeding, promotion and introduction of low erucic rape varieties, there is an urgent need to have a method of identifying low erucic rapeseed that meets the needs of the grassroots. On the basis of the data, we conducted experiments on the key points affecting the accuracy of the law, and greatly improved the accuracy, sensitivity and resolution of the method. Erucic acid content of 1 to 10%, the relative standard deviation of <20%. 2 ~ 5% of erucic acid, the detection sensitivity of about