The Relationship Between the Weight of a Plant Part and Total Weight as Affected by Plant Density

Abstract

Expression of the relationship between the yield of a plant part (e.g. tap-root, leaf or seed) per unit area and plant density as an equation has hitherto been possible only when a knowledge of the yield at k considerable number of plant densities has been obtained. New equations are presented which enable this relationship to be calculated on the basis of the yields at any two plant densities. The conditions under which the equations are valid are discussed and illustrated with experimental data on carrots and radish. The practical value of the equations in horticulture is indicated.