大果石笔木引种栽培研究

Cultivation on newly introduced Pyrenaria spectabilis plant in Liuzhou, Guangxi

【目的】在柳州市引种种植大果石笔木,观察其对环境的适应性,为大果石笔木应用于园林绿化提供科学依据。【方法】在柳州市设点对大果石笔木进行物候期观察、种子繁殖、生长量测定及不同地点栽培试验。【结果】在柳州市气候环境条件下,大果石笔木种子繁殖发芽率达84.75%,年高生长达100.0cm以上,年茎粗生长达1.00cm以上;不同地点栽培的大果石笔木物候期基本一致,植株个体生长正常,树形丰满茂盛,均表现出较强的抗寒、抗旱、抗高温、抗病虫害能力,但耐涝能力较弱。【结论】大果石笔木适应柳州市自然气候环境条件,可作为乡土树种在柳州市城市园林绿化中推广应用。

【Objective】The plant of Pyrenaria spectabilis was introduced in Liuzhou City （Guangxi, China） and their adaptability to environment was observed in order to utilize them in parks, gardens and landscapes in Liuzhou City. 【Method】The seeds of Pyrenaria spectabilis were collected from Luocheng County, Hechi （Guangxi, China） and planted at different locations （Yabanzhou nursery, Dongyuan residential area and Jinghe Company nursery）. Their germination and growth rate, and characteristics of different phenological phases were investigated. 【Result】The germination rate of Pyrenaria spectabilis seeds was recorded as 84.75%. Its annual increment in plant height was over 100.0 cm with over 1.00 cm annual increment in stem diameter. The phonological period of Pyrenaria spectabilis planted at different locations in Liuzhou City was basically similar. The Pyrenaria spectabilis trees grew normally and luxuriantly at all places and showed good resistance to cold, drought, high-temperature, disease and insect pests. However, their waterlogging tolerance was found to be weak. 【Conclusion】The plants of Pyrenaria spectabilis were found adapting to the natural environment and climatic conditions of Liuzhou City. Therefore, it is suggested to strengthen the introduction and propagation of Pyrenaria spectabilis in order to apply it in landscaping in Liuzhou City as the native tree species as soon as possible.