DCPTA Ineffective as a Production Aid on Field-grown Tomato and Pepper

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  • 1 Department of Vegetable Crops, University of California, Davis, CA 95616
  • | 2 University of California Cooperative Extension, Riverside County, Moreno Valley, CA 92557
  • | 3 University of California Cooperative Extension, Fresno County, Fresno, CA 93702

Application of DCPTA, as a seed treatment and a foliar spray, was evaluated for effects on productivity and fruit quality of processing tomato (Lycopersicon esculentum Mill.) and fresh-market pepper (Capsicum annuum L.). Two field trials for each crop were conducted in California during 1992. No DCPTA treatment was effective in increasing vegetative growth or fresh fruit yield of either crop at any site. Total soluble solids concentration and color of tomato fruits were unaffected by DCPTA, regardless of application method. We conclude that DCPTA is not a useful production aid for field-grown tomato or pepper. Chemical name used: 2-(3,4-dichlorophenoxy) triethylamine (DCPTA).

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