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Investigation of nitrogen efficiency in Solanum tuberosum
Project
Project code: JKI-RS-08-3361
Contract period: 01.01.2008
- 30.09.2016
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. Therefore there is increasing demand for cultivars with optimized nitrogen efficiency. Four different components are differentiated in respect to nitrogen utilization of plants: (1) absorption, (2) assimilation, (3) translocation, and (4) remobilization. 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 regard to agricultural crop production worldwide potato ranks fourth after wheat, rice and maize. In Europe potato culture comprises an area of approximately 1,300,000 ha per year. This research project aims at the establishment of methods which will allow the development of potato genotypes with increased nitrogen efficiency. Special emphasis will be placed on (1) characterization of genetic ressources in regard to different components of nutrient uptake and utilization, (2) investigation of effects of nitrogen deficiency on development and physiology of different genotypes, (3) genetical analysis of nitrogen efficiency as well as (4) development of appropriate screening and selection procedures.
Section overview
Subjects
- Crop Production
- Plant Breeding
Framework programme
Funding programme
Excutive institution
Institute of Resistance Research and Stress Tolerance (JKI-RS)
