Biology • 167 Biosphere, small – "Garden in a Bottle"


Try this small “Bottle biology” unit for fast results. This unit makes it possible to create and study a completely closed terrestrial or aquatic environment. Place a few small potted plants in the box and obtain reliable results within a short period of time. The rubber lined acrylic lid and the sturdy fold- back clips ensure a complete seal of the fauna box. Two large sensors (for example CO2


- and O2 -sensors) and one small sen-


sor (for example temperature sensor) can be connected via three holes in the lid. Holes are sealed with the enclosed rubber stoppers when not in use.


7895.10 Biosphere, small – "Garden in a Bottle"


7895.20 7895.10


Soil respirometer


This soil respirometer offers a simple and reliable way of mea- suring the CO2


vegetation free soil or on a potted soil sample, attach a CO2 sensor and a stainless steel temperature probe and start col- lecting data. The CO2


and it is possible to produce nice graphs with CO2 – or O2 production from soil dwelling fungi, bacteria, collembola, plant roots etc. Place the respirometer directly on


concentration will increase within minutes production


vs. time. The respirometer is a clear acrylic glass cylinder with three sensor openings in the lid: Two large sensors (for example CO2


-sensors) and one small sensor (for example tem-


Seed germination chamber for nutrient experiments


Clear acrylic plastic seed germination chamber suitable for ex- periments regarding the effect of different nutrient levels and/ or soil texture on germination of plant seeds. The chamber is triangular shaped to allow observation of root growth.


7630.10 Seed germination chamber for nutrient experiments


7630.10


perature sensor) can be connected through the holes. Rubber stoppers are enclosed. The soil respirometer also offers the opportunity to measure respiration from insects/small animals or as a miniature photosynthesis chamber for small plants/ plant parts. Diameter: 100 mm. Height: 124 mm


7895.20 Soil respirometer


7895.20


Products are shown with sensors for illustration (not included). Passion for Science


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