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Agronomía Mesoamericana

On-line version ISSN 2215-3608Print version ISSN 1659-1321


RANGEL-LUCIO, José Antonio et al. Oleorresina de jícama y calidad de semilla de frijol infestada con Acanthoscelides obtectus Say. Agron. Mesoam [online]. 2011, vol.22, n.1, pp.109-116. ISSN 2215-3608.

Yam bean oleoresin and seed quality of common bean infested by Acanthoscelides obtectus Say. The objective oof this investigation was to evaluate the effect of yam bean oleoresin on common bean seed quality and bean weevil control. The oleoresin extract was obtained by the HPLC technique, the presence of rotenone was detected (15 mg/l). Three concentrations of oleoresin extract were tested (Ci, g/ml): C1 (5x10-7, 5x10-6, …5x10-2); C2 (1x10-2, 2x 10-2,…6x10-2); C3 (5x10-1, 6x10-1,…9x10-1) and one control treatment per concentration, applied to recipients of 300 ml with 50 g of common bean (varieties Flor de Mayo, Flor de Junio, Mayocoba) and 20 adults bean weevils inside. The bioassay only utilized common beans treated with the C2 concentration by 48 h to evaluate seed vigor and standard germination of common bean at three and seven days after planted, according to ISTA rules. The results demostrated the common bean normal seedlings and standard germination at five days were provocated by gradual C2 increased, particulary 3 x 10-2 to 6 x 10-2 dilutions at nine days after planted and its confirmed the common bean standard germination.

Keywords : Standard germination; seed vigor; bean weevil; bioinsecticide; bioestimulant.

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