Drapeau, R. and Be´langer, G. 2009. Comparison of meadow fescue and meadow bromegrass in monoculture and in association with white clover. Can. J. Plant Sci. 89: 1059Á1063. Meadow fescue and meadow bromegrass alone or with white clover were compared in a four-cut system in a region with less than 1400 growing degree-days. Cultivars of the two grass species did not affect yield. The annual yields of two grass species, alone or with white clover, were similar in the first production year, but in second and third production years, meadow bromegrass yielded more than meadow fescue. The persistence of white clover, alone or with a grass, was limited.Key words: Festuca pratensis, Bromus riparius, Trifolium repens, yield Drapeau, R. et Be´langer, G. 2009. Comparaison de la fe´tuque des pre´s et du brome des pre´s en monoculture et en association avec le tre`fle blanc. Can. J. Plant Sci. 89: 1059Á1063. La fe´tuque des pre´s et le brome des pre´s seules ou avec le tre`fle blanc ont e´te´compare´s sous un re´gime de quatre coupes dans une re´gion avec moins de 1400 degre´s-jours de croissance. Les cultivars des deux espe`ces de gramine´es, seules ou avec le tre`fle blanc, n'ont pas affecte´le rendement. Le rendement annuel des deux espe`ces de gramine´es seules ou avec le tre`fle blanc e´tait similaire en premie`re anne´e de production mais le rendement du brome des pre´s, au cours des deuxie`me et troisie`me anne´es de production, e´tait plus e´leve´que celui de la fe´tuque des pre´s. La persistance du tre`fle blanc, seul ou avec une gramine´e, a e´te´limite´e.
Mots clé s: Festuca pratensis, Bromus riparius, Trifolium repens, rendementMeadow fescue (Festuca pratensis Huds.) is a forage grass that is widely adapted to the lowlands of central and northern Europe. In North America, meadow fescue is chiefly associated with intensive grazing systems (Casler et al. 1998). In Quebec, dry matter (DM) yields of associations of meadow fescue and timothy (Phleum pratense L.) with birdsfoot trefoil (Lotus corniculatus L.) were significantly lower than the DM yields of five other grass species (Chevrette et al. 1960). In Newfoundland, however, meadow fescue and reed canarygrass (Phalaris arundinacea L.) in association with white clover (Trifolium repens L.) constituted the most productive mixture, with excellent persistence (McKenzie et al. 2005). Meadow bromegrass (Bromus riparius Rehm.) was recently introduced into Canada (Knowles et al. 1993) and is well adapted to western Canada (Pearen and Baron 1996). Meadow bromegrass regrowth has proven to be superior to that of other grasses, making this a valuable species in a rotational grazing system (McCaughey and Simons 1996;Pearen and Baron 1996).There is little information in eastern Canada on the behaviour of meadow fescue and meadow bromegrass, alone or in association with white clover, especially for regions with few growing degree-days such as midnorth-eastern Canada. The objective of the present study was to compare meadow fescue and meadow bromegrass, seeded in monoculture and ...