用不同地理来源的早熟小麦品种研究了品种间温光反应特性的差异。品种的春化要求有很大差异。春化要求对发育进度有很大影响。地理来源较远的品种,其影响程度较小;而地理来源相近的品种,春化是影响发育进度的重要决定因子。完成春化后进一步发育所需的温度条件是影响不同品种二棱期、雌雄蕊原基分化期和抽穗期迟早的一个重要因子。品种间这一特性的差异与其地理来源有关。 Differences of temperature and photoperiod characteristics between different cultivars were studied with early maturing wheat varieties from different geographical origins. Variety of vernal requirements are very different. Vernalization requirements have a great impact on the progress of development. Far from the geographical origin of the species, the impact is less; similar geographical varieties, vernalization is an important determinant of progress. The temperature conditions required for further development after vernalization are important factors influencing the differentiation of two types of dwarf, pistil and stamen primordia and heading date. Differences in this characteristic between cultivars are related to their geographical origin.