Title: Effect of Ethephon and SADH on Quality of Clipped and Nonclipped Tomato Transplants1
Abstract: Abstract (2-Chloroethyl)phosphonic acid (ethephon) and succinic acid-2,2-dimethylhydrazide (SADH, daminozide) improved quality and uniformity of clipped and nonclipped transplants of tomato ( Lycopersicon esculentum Mill.). The materials were effective when applied singly or in combination and with or without a fungicide (maneb). Ethephon applied at 150 to 300 ppm reduced the percentage of transplants bearing flowers and fruits, reduced stem elongation and stimulated root development. SADH at 5,000 ppm reduced stem elongation and yellowing of foliage. Foliage, root, and stem quality were enhanced by using the materials in combination. Neither yields nor fruit quality were adversely influenced by the treatments.