苏联春小麦大部分分布在降水不足的地带.所以选择抗旱、高产的作物品种,具有头等重要的意义.为了加速集约化育种过程,必须在品种形成的早期就对抗性类型进行大量的鉴定和选择,但是选择的效率主要依靠快速鉴定法.这种方法要能够在短期内从早代杂种群体中确定 Most of the spring wheat in the Soviet Union is distributed in under-rainfall areas, so it is of paramount importance to choose drought-tolerant and high-yielding crop species.In order to speed up the process of intensive breeding, a large number of antagonistic types must be identified and selected early in the breed formation, However, the efficiency of selection depends critically on the rapid identification method, which can be determined from the early generation of hybrids in the short term