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Collaborative project: Plus-tree selection and clonal propagation of new Juglans hybrids (Plusbaum-Selektion)
Project
Project code: 22025416
Contract period: 01.03.2019
- 28.02.2022
Budget: 396,167 Euro
Purpose of research: Applied research
Keywords: energy wood production, walnut, hybrids, renewable ressources
The cultivation of Juglans (walnut) varieties belongs to the silvicultural niche of forestry, whose importance, especially as an alternative tree species and from an economic view, is steadily increasing. The extensive death of European Ash (Fraxinus excelsior) by ash dieback (Hymenoscyphus pseudoalbidus) requires the identification of tree species that are suitable for cultivation in the same land as European Ash. One option for securing forest functions sustainably at these sites is the use of Juglans species and their hybrids. Due to the international shortage of walnut wood and the associated increase in demand, the opportunity of this research project for the strengthening of forestry is significant. Not least because of the high dry matter production of the hybrids and the stump-sprouting ability, the aspect of biomass production for energy wood is promising. Further, the location requirements of the new nut hybrids seem to be much less demanding that those of walnut (Juglans regia) and black walnut (Juglans nigra), which claim prime locations. From this point of view, new walnut hybrids also represent a silvicultural alternative for sites that were previously occupied by growth of Fraxinus excelsior (ash) on dry ground. Breeding with Juglans mandshurica also affords breeders improved winter hardiness. The population for targeted selection are hybrids of Juglans intermedia x Juglans mandshurica, which originated about 25 years ago via random pollination in southern Baden.
Section overview
Subjects
- Silviculture
- Renewable Resources
Framework programme
Funding programme
Excutive institution
Albrecht Daniel Thaer Institute of Agricultural and Horticultural Sciences
