Herbage Seed Production in Norway

Seed of all important species of perennial grasses and clover for northern areas can be produced in Norway, with good quality, at about 60°N. Norway has built up its own plant breeding with seed production and is self-supporting in seed of the most important species for use in agriculture. The seed yield per area unit of grass species decreases from south lo north, but there are differences among cullivars depending on where the breeding work has been carried out. The short growing·season makes it difficult for some species to establish a good stand so the plants can flower and give satisfactory seed yield the first year afler sowing. The results of a survey of practical seed production in Norway are given.