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亚麻是我国重要的天然纺织工业原料之一，亚麻加工企业是黑龙江省的支柱型产业和重要的出口创汇企业。近年来随着市场经济的发展， 生产上对亚麻品种提出了更高的要求，生产上急需质佳、丰产、早熟、抗倒、出麻率高的品种。为了尽快地解决这一问题，从１９９３ 年开始，对亚麻外源 Ｄ Ｎ Ａ 导入技术进行了较深入的研究。通过形态学观察，遗传学分析， 发现亚麻外源 Ｄ Ｎ Ａ 导入后代在株高、工艺长度、麻率、抗倒伏性、花色、种皮色等性状有变异，一般 Ｄ３ － Ｄ４ 代可稳定遗传，利用该技术进行育种，可缩短育种年限，加速育种进程。该项技术的研究丰富了亚麻育种的理论与实践的内函，对亚麻事业的发展具有重要的指导意义。
Flax is one of the most important raw materials for natural textile industry in China. Flax processing enterprises are the pillar industries and important foreign exchange earners in Heilongjiang Province. In recent years, with the development of market economy, the production of flax varieties put forward higher requirements, the urgent need to produce good quality, high yield, precocious, anti-down, high yield varieties. In order to solve this problem as soon as possible, from 1993 onwards, the introduction of exogenous DNA into flax has been studied in more depth. Through morphological observation and genetic analysis, it was found that there was variation in plant height, length of process, hemp rate, lodging resistance, flower color and seed coat color of offspring introduced by exogenous D N A from flax. Generally, D3 - D4 generation could be stably inherited , Using this technology for breeding can shorten the breeding period and speed up the breeding process. The research of this technology enriches the inner letter of theory and practice of flax breeding and has important guiding significance for the development of linen industry.