Abstract
The creeping-rooted alfalfa (Medicago media Pers.) cultivar Rambler was grown in stands for 5–6 years and in rows varying from 30 to 120 cm apart on loam soil at Swift Current, Saskatchewan. This is a semiarid location in the Canadian prairie region.On the average, highest yields were obtained from stands of alfalfa growing in rows spaced 45 to 60 cm apart. Lowest yields were those from alfalfa growing in rows spaced 30 cm apart.New plants originating from creeping roots did not appear between the seeded rows until the third growing year. The number of creeping plants varied between row spacings, increasing numbers occurring with increasing row spacings. After six years, creeping plants made up only 2 to 3% of total stand in the 30-cm spaced rows, but constituted about 20% of stand where row spacings were 90 cm or greater.The significance of row spacings, origin of new plants, and the longevity and productivity of the stands are discussed.
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