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has been cited by the following article:

• TITLE: Phytotoxic Effects of 4-Chlorophenol and 2,4-Dichlorophenol in the Germination of Seeds of Phaseolus vulgaris and Zea mayz

  AUTHORS: Irasema Pérez-Portuondo, Manuel Serrat-Díaz, Rosa M. Pérez-Silva, Arelis Ábalos-Rodríguez

  KEYWORDS: Chlorophenol, Bean, Maize, Phytotoxicity, Seed Germination

  JOURNAL NAME: American Journal of Plant Sciences, Vol.12 No.4, April 25, 2021

  ABSTRACT: Soil contaminated with pesticides may reduce plant development due to their toxicity. The aim of this study was to evaluate the influence on the germination of Zea mayz and Phaseolus vulgaris of the two main intermediates of the 2,4-D degradation, which are 4-chlorophenol (4-CP) and 2,4-dichlorophenol (2,4-DCP). Maize and bean seeds were treated with distilled water (control treatment) and increased concentrations of 4-CP and 2,4-DCP (0.006, 0.1, 1.0, 1.5 g·L-1). It was assessed seed germination and calculated various parameters. The parameter most affected by chlorophenols was the index of germination rate, being the P. vulgaris seeds most affected. 2,4-DCP was the compound most toxic for both plants. The germination index was dependent doses for both plant models tested. The results indicate that 4-CP and 2,4-DCP affected the index of germination rate but not influenced in other parameters of germination of Zea mayz and Phaseolus vulgaris. Maize was most tolerance to both chlorophenols in the assessed concentrations. 2,4-DCP was the most toxic of chlorophenols tested.