来源不同的参试冬小麦品种 (春小麦品种 )具有对春化 (日长 )反应敏感性远大于对日长(春化 )反应的一般特征。但英国冬小麦兼有中国超强冬性品种的短日效应和冬性品种的春化累积量 ;美国冬性品种则兼有中国强冬性品种的春化累积量和冬性品种的长日反应特性。英、澳春性小麦对春化作用也有微弱反应 ,类似中国南方冬播春性小麦。中国中熟冬麦区温光条件与英美品种温光特性的差异是引种生育期较长、成熟偏晚的主要原因 The tested winter wheat cultivars (spring wheat cultivars) with different origins have the general characteristics that the response to vernalization (day length) is much greater than the response to Japanese vernalization. However, the short-day effect of British winter wheat varieties and the vernalization accumulation of winter-type varieties in both winter wheat varieties in the United Kingdom and the winterized varieties in winter wheat varieties in the United States, characteristic. British and Australian spring wheat also has a weak response to vernalization, similar to spring wheat in southern China winter sowing. The difference of temperature and light between Chinese midrib winter wheat and that of the British and American cultivars is the main reason for the long introduction period and late mature