摘要
以长春市栽培的绿化树种小叶丁香为材料，观测花期物候特征，结果表明：不同年份的花期变化在14—16d之间，盛花期为8—9d，始花期相差6d。花期物候与冬季温度和春季温度之间有极显著的相关性，冬季、春季温度偏高的年份始花期物候提前，反之始花期物候延迟。小叶丁香具有二次开花特性，第一次花期为5月份，第二次开花为7月中旬～9月上旬。
Syringa microphyUa Diels that cultivated in Changchun was taken as materials to observe flowering phenology characters, the results indicated that flowering changes of different years were between 14 - 16 d, full - bloom stage was 8 - 9 d, the discrepancy of first - flowering dates was 6 d. Flowering phenology had a signif-icant correlation with winter and spring temperature, phenology of first - flowering dates was ahead of time by high temperature drift in winter and spring, on the contrary, it was delayed. Syringa microphylla Diels had sec-ondary flowering characteristics, the first flowering phase was in May, and the second was from the mid July to early September.
出处
《吉林林业科技》
2013年第5期4-5,9,共3页
Journal of Jilin Forestry Science and Technology
关键词
小叶丁香
开花习性
温度
Syringa microphylla Diels
flowering characteristics
temperature
