Vaccinium vitis-idaea L. var. minus Lodd, known in Newfoundland and Labrador as partridgeberry, is an economically important native fruit that is harvested from unmanaged natural stands. Annual production varies, but a mean annual harvest of 96,500 kilograms makes Newfoundland and Labrador the largest North American producer. Most fruit is exported frozen, but there is local secondary processing. There is a limited local market for fresh fruit, but the potential for sales outside Newfoundland holds considerable promise. Following the development of commercial partridgeberry farms in Germany it was decided to evaluate the potential of European cultivars as an alternative crop for small fruit producers in Newfoundland. The European partridgeberry was chosen for study because it is a taller and more bush-type plant than the local variety and would presumably be higher yielding and easier to harvest. Results with rooted cuttings of the cultivars 'Korafle', 'Ammeriand' and 'Red Pearl' field-planted at Pynn's Brook and St. John's in 1992 indicate that 'Red Pearl' spreads more rapidly, but yields less fruit than the others. Total production at Pynn's Brook in 1995 for 'Koralle', 'Ammeriand' and 'Red Pearl' was 306, 147 and 101 g/M² row, respectively. Vegetative growth was good in all cultivars, but heaving was a problem with mother plants. More testing is required to determine the suitability of these and other cultivars for commercial production, especially with respect to establishment, crop yield and maturity.
2005. Compositional changes over four years for binary mixtures of grass species grown with white clover. Can. J. Plant Sci. 85: 351-360. Kentucky bluegrass, meadow fescue, orchardgrass, tall fescue, timothy, and reed canarygrass were seeded in all possible two-grass combinations with white clover in conventional and underseeded barley treatments using a split-plot design at the Western Agriculture Centre near Pynn's Brook, NL. The objectives were: (1) to assess dry matter yield (DMY) of two binary grass species when sown with white clover in mixtures under a system with cuttings at similar crop growth stages as rotational grazing and to assess the effect of underseeding to barley on this system; (2) to identify mixtures that enhance herbage distribution throughout the grazing season; and (3) to assess the sward dynamics over successive cropping seasons. The composition of the binary grass mixtures with white clover affected seasonal DMY, seasonal herbage distribution, and sward dynamics over the production years. Orchardgrass in mixtures decreased DMY, shifted the herbage distribution toward early season, and competed with other species. Timothy composition of the stand showed the largest decline over the 3 production years, whereas white clover declined in mixtures with bluegrass, orchardgrass, or tall fescue. Meadow fescue and reed canarygrass with white clover was the most productive mixture with excellent persistence and good yield distribution over the growing season. Orchardgrass was the least compatible species in the mixtures; it dominated first growth and contributed the least to biomass production in later years. Both bluegrass and reed canarygrass performed well in mixtures over the 3 production years; bluegrass appeared to enhance the performance of the other species during summer regrowth whereas reed canarygrass was superior in the later part of the growing season. Underseeding with barley did not affect white clover yield in any production year but detrimentally affected the yield of orchardgrass and meadow fescue in mixtures, and their seasonal distribution. Les auteurs ont semé du pâturin des prés, de la fétuque des prés, du dactyle pelotonné, de la fétuque élevée, de la fléole et de l'alpiste roseau dans toutes les combinaisons binaires possibles avec du trèfle blanc de la manière traditionnelle ou avec un sous-semis de seigle dans un dispositif en tiroir, au Western Agriculture Centre près de Pynn's Brook, à Terre-Neuve. Les objectifs de l'expérience étaient les suivants : (1) comparer le rendement en matière sèche (RMS) des graminées d'un système binaire semées avec du trèfle blanc dans le contexte d'un régime de coupe aux mêmes stades de croissance qu'un pâturage tournant et évaluer l'incidence du sous-semis d'orge; (2) identifier les mélanges qui améliorent la répartition des herbages sur l'ensemble de la saison de paissance; (3) évaluer la dynamique des peuplements lors de périodes végétatives successives. La composition du mélange binaire semé avec du trèfle blanc affecte le RMS saisonn...
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