关键词: 滇海水仙花, 花部特征, 杂交指数, 花粉/胚珠比, 繁育系统

Abstract: A field investigation was conducted on the floral syndrome and pollination characteristics of Primula pseudodenticulata in artificial population by continuous observation, out-crossing index, pollen-ovule ratio and fruit setting rate. The main results are as follows: Under artificial cultivation conditions, the population come into bloom from December to February of the following year. The flowering span for a plant is month to 1.5 months. The life span of one single flower was 9~14 days. Single flowers have long styles and short-style flower divided. The pollinating insects of P. pseudodenticulata are mostly bees, in addition to butterflies, flies. These indicate that the breeding system of P. pseudodenticulata is facultative selfing.

Key words: Primula pseudodenticulata, floral syndrome, out-crossing index, pollen-ovule ratio, breeding system