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对９９６份中国高粱品种资源的光周期敏感性鉴定表明，中国高粱在每日１０ｈ短日照处理条件下，所有鉴定材料都比在自然光照下提前抽穗开花，而且品种间差异很大（５～４７ｄ）。按照分级标准，光反应迟钝的材料有３５份，占３．５％；中间型的材料有７３６份，占７３．９７％；敏感型的材料有２２５份，占２２．６％。统计分析表明，光敏感的程度与鉴定材料的生育期及原产地的地理纬度有一定的相关性。同时，受日照的影响，鉴定材料的株高、叶片数变化与其光敏感性相关
The identification of photoperiod sensitivity of 996 Chinese sorghum cultivars showed that all Chinese sorghum cultivars were pre-heading and flowering under natural sunlight for 10h under short-day daily sunshine condition, and the varieties varied greatly (5 ~ 47d ). According to the grading standards, there are 35 light-sensitive materials, accounting for 3.5%; 736 intermediate materials, accounting for 73.97%; and 225 sensitive materials, accounting for 22.6%. Statistical analysis shows that the degree of light sensitivity and the identification of the material growth period and geographical latitude of origin has some relevance. At the same time, affected by the sunshine, the identification of materials, plant height, leaf number changes and its light sensitivity