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Imprint
Development of an in vitro system for characterization of potato genotypes in respect to nitrogen efficiency
Project
Project code: JKI-RS-08-3360
Contract period: 01.05.2006
- 31.01.2010
Purpose of research: Basic research
The release of nitrogen from fertilizers applied to areas used by agriculture accounts for an increasingly negative impact on ecosystems. The ability for efficient nutrient uptake and utilisation differs between plant species due to specific morphological and physiological characteristics. Furthermore, genetically based differences have been demonstrated within one species. This indicates the feasibility of increasing the nutrient use efficiency by plant breeding. In plant breeding test systems which enable screening of plants in juvenile state and independent from growing seasons are of special importance. They allow the selection of interesting genotypes at an early stage. Therefore, the possibility for characterization of potato genotypes in respect to nitrogen efficiency by means of in vitro culture systems will be investigated. Such testing systems offer further advantages such as highly standardized conditions and utmost independency from weather conditions as well as pathogens. Furthermore, the supply with nutrients can be easily manipulated. Four different aspects are differentiated in respect to nitrogen utilization of plants: (1) absorption, (2) assimilation, (3) translocation, and (4) remobilization. It will be investigated, if any of these components has a specific impact on the nitrogen efficiency of potato cultivars and can be retrieved under in vitro conditions. Furthermore, the the coherence of results obtained with in vitro systems to natural circumstances has to be carefully verified.
Section overview
Subjects
- Plant Breeding
- Plant Nutrition
Framework programme
Funding programme
Excutive institution
Institute of Resistance Research and Stress Tolerance (JKI-RS)
