Abstract
Forage breeding of cocksfoot (Dactylis glomerata L.) has been very intense in recent decades as it is one of the most important cool season forage grasses in temperate Europe. It is naturally present in Serbia from lowland to mountains over 1000 m above sea level. It shows great adaptability, a high yield of quality forage and is a regular component of several grass-legume mixtures. The aim of this investigation was to evaluate cocksfoot germplasm previously formed from autochthonous populations for breeding of late maturity cultivars and to define genetic diversity. Investigation was conducted on 24 accessions in a 2-year period (2011–2012). Special attention was directed to maturity (heading date) and dry matter yield. Twelve other important traits, components of forage production and quality were measured. All data were processed by ANOVA, multivariate principal component and cluster analyses. The difference in heading averages was more than 20 days. Some populations showed highest DMY and lateness at the same time, which qualifies them for breeding for a new medium to late cultivar. The most important traits for grouping of populations and variability in germplasm were plant height, tiller number and DMY. The first two principal components which showed statistically significant correlations with these traits describe more than 56 % of variability in germplasm. Very few matches of geographic origin and grouping of populations in cluster analysis were obtained.
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This research was funded by Ministry of Education, Science and Technological Development of the Republic of Serbia (Project TR 31057).
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Sokolović, D. et al. (2016). Evaluation of Orchardgrass (Dactylis glomerata L.) Autochthonous Serbian Germplasm in Pre-breeding. In: Roldán-Ruiz, I., Baert, J., Reheul, D. (eds) Breeding in a World of Scarcity. Springer, Cham. https://doi.org/10.1007/978-3-319-28932-8_13
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DOI: https://doi.org/10.1007/978-3-319-28932-8_13
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