Agronomic evaluation of perennial ryegrass wild populations from Ireland for use in French plant breeding programmes
TLDR
One of the 4 clusters obtained includes populations which perform as well as the control cultivars «Vigor» of «Preference» in the 3 locations, which could then be very useful as a source of diversification germplasm for use in French breeding programmes.Abstract:
(...) After an analysis of variance, the mean population effects for 13 quantitative traits, together with an index of general agronomic value for each location, were submitted to a principal component analysis followed by a hierarchical clustering. One of the 4 clusters obtained includes populations which perform as well as the control cultivars «Vigor» of «Preference» in the 3 locations. This material could then be very useful as a source of diversification germplasm for use in French breeding programmesread more
Citations
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High-Throughput Genome-Wide Genotyping To Optimize the Use of Natural Genetic Resources in the Grassland Species Perennial Ryegrass (Lolium perenne L.)
Thomas Keep,Jean Paul Sampoux,José Luis Blanco-Pastor,Klaus J. Dehmer,Matthew J. Hegarty,Thomas Ledauphin,Isabelle Litrico,Hilde Muylle,Isabel Roldán-Ruiz,Anna M. Roschanski,Tom Ruttink,Fabien Surault,E. Willner,Philippe Barre +13 more
TL;DR: Genomic prediction models calibrated using natural diversity were found to be highly effective to describe natural populations for almost all traits as well as commercial synthetic populations for some important traits such as disease resistance, spring growth or phenological traits.
Journal ArticleDOI
Comparisons between wild populations and bred perennial ryegrasses for root growth and root/shoot partitioning
TL;DR: It is concluded that selection for merit based on shoot performance does not necessarily result in large root systems, and better plant performance might result from an increase in root system size in perennial ryegrass.
Journal ArticleDOI
Agromorphological characterization, cyanogenesis and productivity of accessions of white clover (Trifolium repens L.) collected in northern Spain
TL;DR: Cluster analysis identified three groups of accessions that described 71% of the phenotypic variation among accessions of white clover collected in northern Spain, and one group, which includes ten accessions collected from low and medium altitude sites, had the highest dry matter yields and intermedi
Journal ArticleDOI
Spaced plant evaluation of Mediterranean germplasm collections of perennial ryegrass
TL;DR: A sample of 50 wild populations of perennial ryegrass was tested with controls as spaced plant nurseries in two locations in France, finding that some populations from Corsica could be used to develop genetic resources for the Mediterranean area.
Journal ArticleDOI
Agronomic, leaf anatomy, morphology, endophyte presence and ploidy characterization of accessions of Festuca group rubra collected in northern Spain
J.A. Oliveira,M. I. Gutiérrez-Villarias,M. A. Fernández-Casado,L. Costal-Andrade,E. González-Arráez,S. S. Bughrara,E. Afif +6 more
TL;DR: Fifteen accessions of Festuca group rubra collected in northern Spain were characterized and grouped into four Festuca taxa on the basis of leaf anatomy, morphology and ploidy, with cluster analysis useful in identifying four clusters that described 66.5% of the phenotypic variation.
References
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Journal ArticleDOI
Genetic resources in high-rainfall hill pastures of New Zealand
M. B. Forde,F. E. T. Suckling +1 more
TL;DR: Sixty-six ryegrass populations colleeted from high-rainfall hill country were grown as spaeed plants for 3 years at Palmerston North for deseriptive analysis, finding populations were highly variable and most were similar.
Journal ArticleDOI
Assessment and selection of initial material for breeding perennial ryegrass (Lolium perenne L.).
TL;DR: A breeding programme initiated at Oak Park, Carlow, in September 1965, in which perennial ryegrass plants are described, plants were individually distinguishable throughout three growing seasons yet gave a complete ground cover of herbage on which was imposed two contrasting systems of defoliation.