An analysis of competition between plants of Trifoliam repens L. populations collected from contrasting soils.
Abstract
The independent effects of shoot competition and root competition between ecologically contrasting populations were investigated on both acid and calcareous soil The effect of shoot competition on dry-matter yield indicated that populations of T. repens from calcareous soil had greater shoot competitive abilities than those from acid soil, especially on acid soil The effect of root competition on yield indicated that populations from acid soils had greater root competitive abilities on acid soils, but populations from calcareous soils had greater root competitive abilities on calcareous soil. There was competition for phosphorus on both soils. The competitive ability of populations, m full competition, was correlated with plant yield when grown in pure stands.