Comportamiento cespitoso, recuento cromosómico y contenido de ADN nuclear en variedades vegetales obtenidas en la Universidad de Oviedo

Abstract

The objective of this study was to provide information about turfgrass performance in turf plots, chromosome number and DNA content of turf varieties: Festuca ovina L.: ‘Aurora Gold’ and ‘Ridu/Triana’, Agrostis castellana Boiss. & Reut: ‘Highland’, Agrostis capillaris L.: ‘Golfin=Golf’, Festuca rubra L.: ‘Moraima’ and ‘Wilma’ and two experimental varieties (F. ovina: ‘Paula’ and A. capillaris: ‘Casero’) obtained by the Plant Production Area of the University of Oviedo and grown under low input conditions over a 3-year period. The turf plots were evaluated for several traits including overall turfgrass quality (1-9 scale, being 9 the best quality), leaf width (1-9 scale, being 9 the largest leaf) and genetic color (1-9 scale, being 9 the darkest green leaf). F. ovina varieties had better turf performance than F. rubra and A. capillaris varieties under low maintenance conditions. A. capillaris ‘Casero’ showed a tetraploid level (28 chromosomes and 4.84±0.37). F. rubra ‘Moraima’ showed a hexaploid level (42 chromosomes and 11.14±0.48) and F. ovina ‘Paula’ represents an original plant material with an octoploid level (56 chromosomes and 14.36±0.09) different to that of the current varieties of F. ovina.