Greenhouse

The research greenhouse comprises a total area of 400 m2 and is used for experiments on plants and soil as well as for plant cultivation and propagation under controlled and frost-free conditions. The UV-transparent glass cover of the three-naved facility enables photo-biological processes close to natural free sky conditions. 
The side aisles of the greenhouse are separated into 4 cabinets (each 36 m2). Four cabinets are fully air-conditioned and the others are supplied with normal ambient air. The air-conditioned cabinets can be fumigated with various gases (e.g. CO2, O3).

The cabinets can be cooled up to 6 K below outside temperature by shading. Thermal loss during the night can be decreased by a textile shading inside.

 Additionally, the air-conditioned rooms have a dynamic tempering controlled by ventilation. The relative humidity is given by the outside conditions, the internal heating, and the evapotranspiration of the plants. The light reaches about 60% of the outside conditions and decreases to 15% by shading. During winter time, metal halide lamps and quartz halogene lamps provide additional light to extend the diurnal photoperiod or to accelerate the growth of the plants.

Selected Publications

Winkler et al. (2010) Carbon and nitrogen balance in beech roots under competitive pressure of soil-borne microorganisms induced by girdling, drought and glucose application. Functional Plant Biology 37(9): 879-889.

Betz et al. (2009) Ozone affects shikimate pathway genes and secondary metabolites in saplings of European beech (Fagus sylvatica L.) grown under greenhouse conditions. Trees 23(3): 539-553.

Rühr et al. (2009) Drought effects on allocation of recent carbon: From beech leaves to soil CO2 efflux. New Phytologist 184: 950-961.

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