Summary
A joint breeding project for the northern areas of Scandinavia and Iceland was initiated in 1981 under the auspices of the Nordic Council of Ministers. Initially, efforts concentrated on cooperative trials in which both early and more advanced breeding material was tested at a number of experimental stations in the northern regions. This was followed by a joint breeding programme for timothy with the primary aim of developing varieties that possess broad adaptation to a range of Nordic climates and managements and can be grown throughout the northernmost part of Scandinavia. Each of the five national breeding stations originally provided 12 timothy genotypes for the project giving a total of 60 genotypes. The parental genotypes were compared as spaced plants at all five stations and their polycross progeny were grown under sward conditions at the same sites. On the basis of results obtained from these field trials parent clones have been selected and intercrossed to form synthetic populations.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Björnsson, H., 1993. Zones for performance testing of timothy (Phleum pratense L.) in the Nordic countries. Acta Agric. Scand. Sect. B, Soil and Plant Sci. 43: 97–113.
Dennis, B. & Á. Helgadóttir, 1988. Breeding herbage species for northern Scandinavia. In: Natural Variation and Breeding for Adaptation, pp. 169–177. Proceedings of the Eucarpia Fodder Crops Section Meeting, Lusignan, France.
Helgadóttir, Á., 1989a. Breeding herbage species for northern areas. 1. Variety trials with timothy (Phleum pratense L.). Acta Agric. Scand. 39: 243–254.
Helgadóttir, Á., 1989a. Breeding herbage species for northern areas. 2. Variety trials with smooth meadow grass (Poa pratensis L.). Acta Agric. Scand. 39: 255–268.
Helgadóttir, Á. & T.A. Kristjánsdóttir, 1991. Simple approach to the analysis of G × E interactions in a multilocational spaced plant trial with timothy. Euphytica 54: 65–73.
Helgadóttir, Á., H. Björnsson & T.A. Kristjánsdóttir, 1994. Analysis of a site × year experiment with timothy polycross progeny. Unpublished.
Jönsson, H.A., U. Kristiansson, C. Nilsson & J. Sjödin, 1992. Morphological characters in spaced plants associated with forage yield under sward conditions in timothy (Phleum pratense L.). Acta Agric. Scand. Sect. B, Soil and Plant Sci. 42: 18–25.
Lazenby, A. & H.H. Rogers, 1960. The evaluation of selection indices for yield in grass breeding. Proceedings of the 8th International Grassland Congress, Reading.
Lin, C.S. & M.R. Binns, 1988. A superiority measure of cultivar performance for cultivar × location data. Can. J. Plant Sci. 68: 193–198.
Manner, R., 1983. The co-operative Nordic project on grass breeding for northern areas. Symposium on Nordic Co-operation in the Field of Plant Breeding. Acta Agric. Scand. suppl. 23: 116–121.
Olesen, K. & O.J. Olesen, 1973. A polycross pattern formula. Euphytica 22: 500–502.
Opsahl, B., 1964. Contributions to the breeding methods of timothy. Meld. Norg. Landbr. Högsk.43(12): 1–86.
Rognli, O. A., 1988. Species aspects of breeding herbage varieties for northern marginal regions. J. Agric. Sci. Finl. 60: 181–189.
Simonsen, Ö., 1985. Herbage breeding in northern areas. In: A. Kaurin, O. Junttila & J. Nilsen (Eds) Plant Production in the North, pp. 277–295. Norwegian University Press, Oslo.
SNP, 1992. Agroklimatisk kartlegging av Norden. Grunnlang og framlegg til gjennomforing av soneinndeling. Samnordisk Planteforedling. Skrifter og rapporter nr. 5, 97 pp.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1994 Springer Science+Business Media Dordrecht
About this chapter
Cite this chapter
Helgadóttir, Á., Björnsson, H. (1994). Cooperative breeding for the northern marginal areas. In: Rognli, O.A., Solberg, E., Schjelderup, I. (eds) Breeding Fodder Crops for Marginal Conditions. Developments in Plant Breeding, vol 2. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0966-6_16
Download citation
DOI: https://doi.org/10.1007/978-94-011-0966-6_16
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-4418-9
Online ISBN: 978-94-011-0966-6
eBook Packages: Springer Book Archive