Selection of rapeseed genotypes for efficient uptake and retranslocation of nitrogen

NPZ-Lembke is a family-owned company with a tradition of more than 110 years in breeding of agricultural crops with focus on the breeding of new varieties of oil-, protein- and fodder-crops and furthermore on the production and trading of high quality seeds. NPZ-Lembke is member of Rapool-Ring GmbH and of Saaten-Union GmbH as marketing cooperation-companies in Germany and Europe. NPZ-Lembke is represented by subsidiaries or partnerships in France, UK, Canada and Ukraine and shows an international activity in Europe, Middle and Eastern-Europe, Australia and North America. NPZ-Lembke`s broad experience led to the establishment of many innovative rapeseed varieties in the EU and international markets, by improving yield potentials (yield and oil content) in hybrid varieties based on an own hybrid system and increasing the potential use of rapeseed for human nutrition (fatty acid composition, protein) or for technical purposes.
In addition to classical plant breeding, genetic engineering-based methods (e.g. in vitro-tissue culture techniques, marker-assisted selection or in-vitro analysis of resistance) are integrated into the breeding process. In various national and European projects and cooperations, new transgenic varieties (e.g. with improved resistances, quality traits or yield) are cultivated in S1 facilities and are optimised for classical breeding programmes.
As a major breeding company for rapeseed in Europe, NPZ-Lembke has collected over the past decades rapeseed germplasm differing largely in many traits that are relevant for N re-translocation, such as yield potential, harvest index or flowering time.
NPZ-Lembke will contribute with different field trials to the proposed project. The plant material used in this study represents 7 NPZ elite winter rapeseed lines that have been selected according to their wide genetic distance. Further 6 winter rapeseed hybrids have also been included in the experimental program. The hybrids are included to test their agronomic performance regarding the response to low nitrogen input in comparison to open pollinators.
Furthermore, NPZ is now developing a new double haploid population (DH-Pop) using 2 genotypes as parents, that will be included as well. This new DH-Pop will be used for genotyping and QTL analysis to develop molecular markers associated with the trait N-use efficiency and nitrogen re-translocation during the seed-filling phase.


Norddeutsche Pflanzenzucht Lembke AG (NPZ)NPZ
Hohenlieth, Holtsee, Germany


Dr. Amine Abbadi
Dr. Gunhild Leckband
Dr. Mustapha Arbaoui


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