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对25个居群的山丹在保定地区的物候期、生长期特性进行了调查分析。结果表明,不同山丹居群的物候期存在明显差异。萌芽期和开花期最早的为辽宁居群,最晚的为易县和邯郸居群,萌芽期相差37～39 d,开花期相差将近3个月。25个居群的不同生长发育阶段(花蕾发育期、花期天数、生长周期)所需的时间长短不一。不同居群山丹生长曲线基本一致,均为慢-快-慢的生长趋势。相关分析表明纬度与山丹的萌芽期、现蕾期、始花期、末花期、果熟期、枯萎期之间均呈极显著负相关。山丹的自然物候期也存在明显早、晚差异,这为百合育种提供了良好的资源。
The phenological and growth characteristics of 25 populations of Shandan in Baoding area were investigated and analyzed. The results showed that there were significant differences in the phenophase of different Shandan populations. The earliest stage of germination and flowering was Liaoning population, the latest was Yi County and Handan population, the difference of 37-39 d in budding period, flowering period nearly 3 months. The length of time required for different developmental stages of 25 populations (bud development, days of flowering, growth cycles) varied. The growth curves of different populations of Shandan basically the same, are slow - fast - slow growth trend. Correlation analysis showed that there was a significant negative correlation between latitude and Shaandan bud, bud stage, initial flowering stage, end flowering stage, fruit ripening stage, withered period. The natural phenophase of Shandan also has obvious early and late differences, which provide a good resource for lily breeding.