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Fumigation of high moisture seed with acetic acid to control storage mold.

Sholberg, P. L.; Gaunce, A. P.;

Canadian Journal of Plant Science Year: 1996 Vol: 76 Issue: 3 Pages: 551-555 Ref: 9 ref.

1996

บทคัดย่อ

Fumigation of high moisture seed with acetic acid to control storage mold.

Acetic acid (AA) vapour applied to high moisture content canola [rape], maize, rice and wheat seed/grains inoculated with conidia of Aspergillus flavus effectively prevented A. flavus from growing. Wheat (500 g) initially fumigated with AA at 0.78 ml kg-1 of seed had complete germination and zero mould infection after storage for 102 d at 20 deg C. The untreated control had 37% germination and all seeds were infected. Canola fumigated with AA at 0.58 ml kg-1 of seed and evaluated for mould colonies/gram of seed had zero compared to 2400 colonies in the untreated control after storage at 20 deg C for 38 d. Absorption of AA vapour occurred rapidly during the first few minutes of fumigation, reaching equilibrium within approximately 20 min. The amount of AA vapour absorbed by seed increased as moisture content increased.