Irrigation of pepper plant (Capsicum sp.) with water containing acrolein

Autor: Diego Javier Bentivegna, Hugo Alfredo Caldironi, Miles R. Rhea
Jazyk: angličtina
Rok vydání: 2004
Předmět:
Popis: MAGNACIDE® H herbicide (a.i. acrolein (2-propenal)) is an aquatic herbicide applied through underwater injection into agricultural irrigation canals for the control of submerged aquatic weeds. In support of the products national registration in Argentina, additional information was required pertaining to the potential persistence of acrolein residuals in plants irrigated with water treated with this herbicide. Pepper plants (Capsicum sp.) were treated through irrigation with the maximum application rate permitted (15 μl l-1) on the label and at double the maximum application rate (30 μl l-1), under controlled environmental conditions in a greenhouse. Reverse phase high-performance liquid chromatography (RP-HPLC) with fluorescence detection was the method used to determine acrolein. Parts of the plant (leaves, stems, roots and fruit) as well as soil were collected in order to determine potential residual levels of acrolein. The low values of acrolein measured in all samples were reduced to undetectable levels within a few hours, resulting a half-life of acrolein in pepper plants of 10.3 h. The plants did not exhibit any visible damage attributable to the aquatic herbicide. The most remarkable observation was that acrolein never persisted in any of the sampled plants. Therefore, it is safe to use water acrolein treated under controlled conditions through field application. Fil: Caldironi, Hugo Alfredo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Instituto de Investigaciones Bioquímicas de Bahía Blanca. Universidad Nacional del Sur. Instituto de Investigaciones Bioquímicas de Bahía Blanca; Argentina. Universidad Nacional del Centro de la Provincia de Buenos Aires. Facultad de Agronomía; Argentina Fil: Bentivegna, Diego Javier. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Centro de Recursos Naturales Renovables de la Zona Semiárida. Universidad Nacional del Sur. Centro de Recursos Naturales Renovables de la Zona Semiárida; Argentina Fil: Rhea, Miles R.. Baker Petrolite; Estados Unidos
Databáze: OpenAIRE