Exploring the mysteries behind subarctic seed germination through the use of Clitec's climate test chamber.

In the vastness of the Arctic and sub-Arctic, where the effects of anthropogenic climate change are most keenly felt, understanding the complex process of seed germination has become a scientific necessity. While previous studies have provided insight into this ecological phenomenon, the intricacies of this topic remain largely unexplored. This scientific paper is dedicated to the central role of Clitec GmbH’s modern climate test chamber in unravelling the mysteries of seed germination in subarctic regions.

Impact of climate change on seed germination

The effects of climate change on seed germination in arctic and subarctic ecosystems are underrepresented in current research. This study, focussing on the timing and extent of germination, promises to contribute valuable insights into population dynamics and expected changes in the distribution ranges of subarctic species. This is particularly important in light of expected changes in snow cover dynamics and winter temperatures.

Winter soil conditions: A crucible for germination

The observed decline in snow cover over the last three decades, coupled with projections of further reductions, emphasises the need to understand how winter conditions affect seed germination. Clitec’s climate test chamber serves as a controlled environment that allows researchers to study the potential effects of colder soils and deeper ground frost in winter, especially when the soil is not insulated by snow.

Cold stratification: investigating temperature effects

Conventional research into cold stratification in crops from cold climates has focussed mainly on duration rather than temperature. Clitec’s innovative approach, supported by the climate test chamber, broadens the research horizon by allowing researchers to manipulate and control temperatures during stratification. This refined analysis is crucial for a better understanding of seed germination under different snowpack scenarios.

Clitec’s climate test chamber: technological germination optimiser

At the centre of the progress of this research is Clitec GmbH’s state-of-the-art climate test chamber. With an internal volume of 5000 to 25,000 litres, this technological marvel offers researchers unprecedented control over growth conditions. The ability to precisely regulate temperature (5 to 45 °C) and humidity (40 to 90 %RH) opens up new possibilities for studying the dynamics of seed germination. The chamber’s adaptability to simulate global climates, coupled with a user-friendly interface with the ClimaPlus touchscreen controller, positions it as a pioneering tool for studying seed germination dynamics in controlled environments.

One of the notable advantages of using Clitec’s climate test chamber is its ability to mimic real-world scenarios, simulating different climatic conditions and allowing researchers to assess germination responses under controlled but ecologically relevant conditions. This technological support significantly improves the accuracy and reproducibility of experiments, providing researchers with a platform to unravel the complex mysteries of seed germination.

Experiments and studies: Unravelling subarctic secrets

An ongoing experiment supported by Clitec’s climate test chamber aims to investigate the effects of realistic cold treatments and warm incubation temperatures. The study seeks to answer critical questions about the effects of colder winter soil temperatures under reduced snow cover, higher germination temperatures, and the potential generality or specificity of these effects for different subarctic species.


Clitec GmbH’s climate test chamber proves to be an indispensable support in the scientific study of seed germination dynamics in subarctic regions under the influence of climate change. By providing a controlled and adaptable environment, this technological innovation helps to decipher the intricacies of germination under different climatic scenarios and ultimately contributes to a more nuanced understanding of the ecological implications in these fragile ecosystems.


Milbau, A., Graae, B. J., Shevtsova, A., & Nijs, I. (2009). Effects of a warmer climate on seed germination in the Subarctic. Annals of Botany, 104(2), 287-296. https://doi.org/10.1093/aob/mcp117