在大田种植的30多个国家近万份大麦品种及育种原始材料中,发现了一份植株特矮、叶片与茎节数较普通的大麦品种多一倍的原始材料。进行了植物形态与生长习性的初步观测及杂交试验,对其“多节”与“矮秆”种质进行了仞步的遗传分析。分离净化出一个矮源。提出了在大麦育种中利用该种质的技术路线。 Nearly 10,000 barley varieties and breeding raw materials in more than 30 countries planted in the field have found a source of raw material with a short plant length and twice as many leaf blades and stems as common barley cultivars. The preliminary observation and hybridization experiment of plant morphology and growth habit were carried out, and the genetic analysis of its “multi-node” and “dwarf” germplasm was carried out. Separation and purification of a dwarf source. The technical route to utilize this germplasm in barley breeding has been proposed.