GrainGenes Reference Report: PEU-04-9
Reference
PEU-04-9
Title
Changes in the genetic diversity of the Hungarian wheat varieties registered over the last fifty years
Contained in
(2004) Genetic variation for plant breeding. Proceedings of the 17th EUCARPIA General Congress, Tulln, Austria, 8-11 September 2004.
Year
2004
Pages
9-12
Author
Lang L Bedo Z Vollmann J Grausgruber H Ruckenbauer P
Abstract
Pedigree analysis on the Hungarian wheat varieties registered over the last 50 years indicates a great increase in genetic diversity. Breeders cross a wide range of initial stock to develop varieties with increasingly complex pedigrees, as a result of which, diversity is also increasing at the production level. Some 18-20 wheat varieties now have substantial shares of the sowing area and the dominance of a single variety is a thing of the past. The age of the cultivated varieties, measured with the sowing area, is 6-8 years and has remained practically unchanged for the last two decades. The genetic diversity in Hungarian wheat production, calculated on the basis of the number of varieties, the sowing area per variety and the coefficient of parentage of the varieties, has improved greatly over the last decade. There has been a reduction in genetic vulnerability, while the large number of genetically diverse varieties makes it possible to respond rapidly with a change of variety in the case of biotic stress or new market demands
Keyword
agricultural research
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GrainGenes Reference Report: PEU-04-9
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||