Evaluation of populations of Dactylis glomerata L. native to Mediterranean environments
V. Copani A , G. Testa A C , A. Lombardo B and S. L. Cosentino A
+ Author Affiliations
- Author Affiliations
A Dipartimento di Scienze delle Produzioni Agrarie e Alimentari (DISPA) – Università degli Studi di Catania, via Valdisavoia, 5, 95123 Catania, Italy.
B Laboratory of Genomic and Varietal Correspondence, Science and Technology Park of Sicily, Blocco Palma I, Z.I., 95121 Catania, Italy.
C Corresponding author. Email: gtesta@unict.it
Crop and Pasture Science 63(12) 1124-1134 https://doi.org/10.1071/CP12276
Submitted: 21 March 2012 Accepted: 4 January 2013 Published: 18 February 2013
Abstract
Several morphological and agronomic traits and the genetic diversity of nine Dactylis glomerata L. populations collected throughout Sicily (semi-arid Mediterranean environment) were evaluated for two successive years. Significant differences were recorded for morphological traits (plant height, leaf length, leaf width). In relation to the measurement of summer dormancy, the results suggest the expression of different levels of dormancy (completely dormant, semi-dormant, and non-dormant). For biomass yield, some Sicilian populations (SD63 and SD56) characterised by low levels of summer dormancy show production levels similar to the summer-active control varieties (Medly and Porto). However, SD46, with a much higher level of dormancy, gave biomass yield higher than the summer-dormant control variety (Kasbah). The genetic diversity evaluated by fAFLP analysis confirms the observed morphological and agronomic variability.
Additional keywords: cocksfoot, fAFLP, Mediterranean germplasm, summer dormancy, semi-arid environment, orchardgrass.
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