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要弥补小麦品种寿命不长的缺陷,必须加强研究延长其使用年限的方法。Jenson等提出了用抗性基因多样化的方案作为稳定锈病病原群体的方法。以延缓或防止新生理小种的形成。其法是,将具有不同抗性基因的一组相互适应地纯系品种的种子加以混合构成基因的多样化。而给这一混合的或多系品种以一个品种名称——多系品种。近年来,人们逐渐认识到多系可以保持品种的长期性;为多因系具有两种抗性作用,所以,比单独应用垂直抗性(VR)或水平抗性(HR)都更持久。研究者们对多系的作用提出了不同观点,
To make up for the short life of wheat varieties defects, we must strengthen the study to extend the useful life of the method. Jenson et al. Proposed a variety of resistance genes as a method to stabilize the pathogen population of rust. To delay or prevent the formation of new physiological races. The method is to mix a group of seeds of different pure lines with different resistance genes to make the gene diversity. And to this mixed or multi-line varieties with a variety name - multi-line varieties. In recent years, people have come to realize that long lines can maintain the long-term variety of varieties. Because they have two types of resistance to multiple lines, they are more durable than the application of vertical resistance (VR) or horizontal resistance (HR) alone. Researchers have come up with different perspectives on the role of multiple systems,