| Experiment Title: | Testing the responses and interplays of leaf physiological and morphological traits at elevated CO2 levels in five common crop species | Institutions responsible:
Utrecht University and University of Western Australia (Astrid Ode) |
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| Experiment Description: | Photosynthesis and gas exchange traits depend strongly on a combination of morphological, biochemical, and physiological properties. This experiment aims to investigate changes in gas exchange, photosynthesis and stomatal morphology and their interplay in response to increased levels of CO2. Five common crop species were grown in controlled climate chambers at ambient (400 ppm) and elevated (1000 ppm) CO2 levels. | ||
| Variables being tested: | Experimental Details (factorial design, replication, lab/field/ controls, vegetation type): | Data availability: | Study limitations: |
From 8-9 plants per treatment (ambient and elevated CO2) per species:
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The experiment was conducted between September – November 2022. The climate chambers at the UWA were used with a 12h/12h photoperiod, with temperatures set to 30/20 ˚C (day/night). One litre pots with standard potting mix were used for all plants and slow release fertilizer was added. Ambient CO2 room was at 400 ppm, elevated CO2 room at 1000 ppm. Species included: soybean (Glycine max), borlotti bean (Phaseolus vulgaris), maize (Zea mays) wheat (Triticum aestivum), and buckwheat (Fagopyrum esculentum). | All data available on request (unpublished yet).
CSV/excel files. |
Pot size limited to 1 liter. Leaf age influences photosynthesis traits. Plants were flowering at harvest.
13C samples were influenced by the atmospheric value – air was sampled but comparisons between rooms may not be appropriate. |
