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Collaborative project: Sustainable winter oilseed rape production through breeding improvement of the NUE and optimization of the cultivation system - subproject A (NaWiRa)
Project
Project code: 281D107A21, JKI-RS-08-3463
Contract period: 15.08.2023
- 14.08.2026
Budget: 203,595 Euro
Purpose of research: Applied research
In NAWIRA, it is foreseen to initially grow 300 test hybrids at different locations under different N levels and two different N fertilization regimes (nitrate- vs. ammonium-emphasized) and use them as a training data set for genomic selection models. Using these, test hybrids are identified from an expanded pool of approximately 600 genotypes that are at elite levels but differ in terms of nitrogen (N) use. With the selected 10 most contrasting test hybrids, at a total of three locations (Braunschweig (JKI), Quedlinburg (JKI), Cunnersdorf (SKWP)), field trials will be conducted. Field trials will be carried out in two low N variants (ammonium- vs. nitrate-emphasized), as well as two seeding variants (drill seeding and equidistant seeding) and two seeding strengths. For this purpose, a new equidistant seeding technique will be developed and used to optimize the plant density, which is already low in winter oilseed rape, in such a way that each individual plant can optimally utilize its stand space - and thus the factors influencing nitrogen utilization. In the field trials, UAV overflights are carried out at regular intervals for multispectral reflectance measurements in order to estimate the N status of the plants during vegetation. In addition, the maturation behavior (early vs. late senescence) will be determined in a genotype-specific manner. Multifactorial models will be used to investigate the interactions in order to identify the best combination of variety, fertilization, and seed variety. The intended results of NAWIRA will provide initial insights into improving sustainability in winter oilseed rape production through parallel optimization of genetics and cropping systems.
Section overview
Subjects
- Plant Breeding
- Genetic Resources
- Climate Change
Framework programme
Funding programme
Excutive institution
Institute of Resistance Research and Stress Tolerance (JKI-RS)
Funding institution
Project management agencies
Associated projects: NaWiRa
- Collaborative project: Sustainable winter oilseed rape production through breeding improvement of the NUE and optimization of the cultivation system - subproject B
- Collaborative project: Sustainable winter oilseed rape production through breeding improvement of the NUE and optimization of the cultivation system - subproject C
