两种球花报春的生长特性研究初报

Study on Growth Characteristics of Two Drumstick Primroses

以两种球花报春植物滇北球花报春、滇海水仙花为材料，初步研究了两种报春的生长发育特性。结果表明，两种球花报春播种后不同生长期的株高、冠幅均呈先升后降的趋势；而叶数变化趋势不同，滇北球花报春的叶片数量先升后降，滇海水仙花的则持续增长；滇北球花报春需经过冬季低温后于次年3～4月开花，而滇海水仙花当年12月即能开花；滇海水仙花在开花的同时进行匍匐茎无性繁殖方式。

This paper studied the growth characteristics of two drumstick primroses, Primula denticulata ssp. denticulata and Primula pseudodenticulata Pax. The results showed that the plant height and crown width of two Primula species had the similar change at different growth stage, which grew rapidly at first and then grew slowly. However, the change of leaf number of two primrose species was different, the leaf number of Primula denticulata ssp. denticulata increased rapidly at first and then decreased slowly, while that of Primula pseudodenticulata Pax had a sustained rising. Prinuda denticulata ssp. denticulata flowered in the next years＇Match to April after the winter, and Primula pseudodenticulata Pax flowered in December in the year of sowing. What＇s more, Primula pseudodenticulata Pax could grow many creepers in the bloom.