Responses of Two Species of Tomatoes and the F1Generation to Sodium Sulphate in the Nutrient Medium

Abstract

Tomato plants of the Johannisfeuer strain and the Red Currant strain, together with the F1 generation, were submitted to 4 treatments, providing 4 concs. of Na2SO4 ranging from 4.6 to 124.6 milliequivalents of sulfate ion per 1. of nutrient soln. Plant height, the dry wt. of vines, and stem diam. were less in all strains with increased conc. The smaller stem diam. was caused by an inhibited development of each of the component tissue systems. The total fresh wt. of the fruit produced as well as the mean wt. of each ripe fruit was less in 2 strains with increased Na2SO4 conc. The number of fruits produced by each plant of the F1 was less as the conc. increased, and the density of ripe fruits increased in all strains with increased cones. Differences between as well as within strains between treatments are indicated for some of the characteristics.