腾冲红花油茶的坐果率及结实率研究

Study on Fruit Setting and Seed Production Characteristics of Camellia reticulata in Tengchong County

为掌握腾冲红花油茶开花坐果及结实规律,2010年在腾冲县林业技术推广所腾冲红花油茶基地中,选择早、中、晚花期类型实生腾冲红花油茶植株的不同方位、不同部位的坐果率及结实率进行调查研究。结果表明:腾冲红花油茶坐果率较高,为47.41%;早、中、晚花型平均坐果率分别为44.03%、46.18%和52.02%,差异不显著;除早花型南、西、北方位坐果率差异显著高于东方位,其他方位坐果率差异不显著。腾冲红花油茶结实率较低,仅为19.99%;早、中、晚花型结实率分别为13.46%、19.89%和26.61%,差异达到极显著水平;类型内各方位、部位结实率差异不显著,但数值自上而下具有由大到小的变化规律性。

Selecting the early-flowering, middle-flowering and late-flowering Camellia reticulata in planting base of Tengchong county as the study materials, in 2010, the fruit setting ratios of branches of different aspects and parts were investigated and studied. The results showed that the average fruiting setting ratio was 47. 41%, the average fruiting setting ratios of early-flowering, middle flowering and late flowering were 44. 03 %, 46. 18 % and 52. 02 % respectively, the differences were not significant. As far as the aspect was concerned, only the fruit setting ratios of at south, west and north aspect of early-flowering were significantly higher than that at east aspect. The seed pro- duction percentage of Camellia reticulata in Tengchong of Yunnan province was 19.93 %, the differences among individuals were extremely significant. The average seed production percentages of early-flowering, middle flowering and late flowering were 13.46 %, 19.89 % and 26.61% respectively, the differences were extremely significant. Within the same flowering stage type, the seed production percentages of different aspects and different parts were not significant, showed the tendency of decreasing from the top of bottom of the plant.