Effects of Ethephon and Benzimidazoles on Corm and Cormel Production by Gladiolus Cormels1
Year: 1971
Type: article
Abstract: Ten fungicidal treatments with and without 2-chloroethylphosphonic acid (ethephon) at 1000 ppm were applied to Fusarium -inoculated, dormant cormels by soaking or by vacuum infusion. Water-control treatments resulted in nearly complete disease loss by F. oxysporum f. sp. gladioli Sny. & Hans. Treatments with 2-(4-thiazolyl)benzimidazole (TBZ) or methyl 1-(butylcarbamoyl)-2-benzimidazolecarbamate (benomyl) were effective in controlling the disease. Application of TBZ suspension by vacuum infusion increased corm and cormel production over the soak treatment. The effectiveness of TBZ was increased also by adding 100 ppm Ortho X-77 Spreader, or by adding phosphoric acid to dissolve the chemical at pH 3. The addition of ethephon increased corm production in the 10 treatments by 50% and cormel production by 90%. The increases in corm and cormel production were, respectively, 61 and 116% where ethephon was added to the most effective vacuum infusion treatments, namely: TBZ + X-77, TBZ + phosphoric acid, and benomyl + X-77 with or without dimethylsulfoxide (DMSO).
Source: HortScience
Author: R. O. Magie
Language: English
Subfield: Plant Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: hybrid
Estimated APC paid: $3,000
OpenAlex ID: W4295951934