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| Home > Publications database > Exploring buckwheat as a crop for marginal soils - root development under nitrogen deficiency |
| Poster (After Call) | FZJ-2025-01718 |
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2025
Abstract: Common buckwheat (Fagopyrum esculentum MOENCH), a globally grown pseudocereal, is currently hardly cultivated in Germany and merely used as a cover crop. However, buckwheat’s market share is increasing, because of its health-promoting properties. Additionally, buckwheat is of interest to diversify crop rotation in response to global warming. Due to a high content of secondary metabolites, buckwheat leaf biomass might serve as a valuable source of pharmaceutically interesting phytochemicals. The project BIMOTEC aims to establish buckwheat as a dual-use crop in Germany, exploiting both buckwheat grains for food production and residual biomass for the extraction of valuable phytochemicals, like rutin. This utilization of residual biomass is intended to enhance resource use efficiency and sustainability of buckwheat cultivation, contributing to meet the German government’s bioeconomy strategy. Additionally, given buckwheat’s capacity to thrive in marginal soils, it holds potential for soil recultivation. Plant performance under inadequate environmental conditions, like low nutrient availability, largely relies on their root architectural traits, which have hardly been studied in buckwheat. As part of the BIMOTEC project, favorable root traits and suitable buckwheat genotypes will be identified by automated high-throughput plant phenotyping with the novel GrowScreen-Rhizo III phenotyping facility. By growing plants in flat soil-filled rhizotron pots with a translucent side plate, the root system can be regularly imaged to quantify root growth. In an initial pilot experiment, buckwheat was grown in rhizotrons under control and nitrogen-deficient conditions to detect root architectural dynamics in response to low nitrogen availability. The results of this study will be used to determine suitable conditions for further phenotyping trials with 60 buckwheat genotypes. By unraveling the normally inaccessible root system of buckwheat, BIMOTEC intends to unlock its potential to contribute to bioeconomy.
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