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Phytotoxic Effects of 4-Chlorophenol and 2,4-Dichlorophenol in the Germination of Seeds of <i>Phaseolus vulgaris</i>and <i>Zea mayz</i> 被引量:1
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作者 irasema pérez-portuondo Manuel Serrat-Díaz +1 位作者 Rosa M. rez-Silva Arelis Ábalos-Rodríguez 《American Journal of Plant Sciences》 2021年第4期614-623,共10页
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 </span><i><span style="font-family:Ve... 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 </span><i><span style="font-family:Verdana;">Zea mayz</span></i><span style="font-family:Verdana;"> and </span><i><span style="font-family:Verdana;">Phaseolus vulgaris </span></i><span style="font-family:Verdana;">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&middot;L</span><sup><span style="font-family:Verdana;">-1</span></sup><span style="font-family:Verdana;">). It was assessed seed germination and calculated various parameters. The parameter most affected by chlorophenols was the index of germination rate, being the </span><i><span style="font-family:Verdana;">P. vulgaris</span></i><span style="font-family:Verdana;"> seeds most affected. 2,4-DCP was the compound most toxic for both plants. The germination index was dependent </span><span style="font-family:Verdana;">doses for both plant models tested. The results indicate that 4-CP and</span><span style="font-family:Verdana;"> 2,4-DCP affected the index of germination rate but not influenced in other parameters of germination of </span><i><span style="font-family:Verdana;">Zea mayz</span></i><span style="font-family:Verdana;"> and </span><i><span style="font-family:Verdana;">Phaseolus vulgaris.</span></i><span style="font-family:Verdana;"> Maize was </span><span style="font-family:Verdana;">most tolerance to both chlorophenols in the assessed concentrations. 2,4-DCP </span><span style="font-family:Verdana;">was the most toxic of chlorophenols tested. 展开更多
关键词 CHLOROPHENOL Bean Maize PHYTOTOXICITY Seed Germination
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