Temperature, which is one of the most relevant abiotic factors affecting seed germination, is strongly influenced by local site conditions. Here, we collected seeds of Hypericum balearicum, an endemic shrub of the Balearic Islands, from 11 sites of Mallorca. We investigated variations in final germination percentage (FGP), germination rate (t₅₀) and germination timing (t₀) of seeds from different provenances according to the local conditions of each location (here classified in mountain, coast and valley environment) under a range of temperature treatments (12–24 ºC). An environmental data logger was installed in three of the sites to determine the temperature variability for each environment. Hypericum balearicum germinates in the optimal temperature range of Mediterranean plants. FGP was neither affected by temperature treatments nor by the site of origin (environment). However, the coast environment showed higher t₅₀ and t₀ values in all temperatures tested compared to mountain and valley, especially at low temperatures compared to mountain environment and at low and high temperatures compared to valley environment. These differences among environments were consistent with the temperature parameters recorded in each environment. Overall, this study demonstrates the importance of taking into account local temperature conditions effects in germination in order to know how plants will respond to environmental changes.

温度是影响种子萌发的最相关的非生物因素之一，受当地立地条件的影响很大。在这里，我们从马略卡岛的 11 个地点收集了金丝桃的种子，这是巴利阿里群岛的一种地方性灌木。我们根据每个地点（这里分为山区、海岸和山谷环境）的当地条件，调查了来自不同来源的种子的最终发芽率（FGP）、发芽率（t ₅₀）和发芽时间（t ₀）的变化。温度处理范围 (12–24 ºC)。在三个站点安装了环境数据记录器，以确定每个环境的温度变化。金丝桃在地中海植物的最佳温度范围内发芽。FGP 既不受温度处理的影响，也不受原产地（环境）的影响。然而，与山地和山谷相比，海岸环境在所有测试的温度下显示出更高的 t ₅₀和 t ₀值，尤其是在与山地环境相比的低温以及与山谷环境相比的低温和高温下。这些环境之间的差异与每个环境中记录的温度参数一致。总的来说，这项研究证明了考虑当地温度条件对发芽的影响以了解植物将如何应对环境变化的重要性。