ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Effects of postharvest oil and fungicide application on storage fungi in corn following high-temperature grain drying.

White, D. G.; Toman, J., Jr.;

Plant Disease Year: 1994 Vol: 78 Issue: 1 Pages: 38-43 Ref: 22 ref.

1994

บทคัดย่อ

ABSTRACT :

Three experiments were carried out to compare the efficacy of thiabendazole or iprodione with a water carrier before or after drying and with an oil carrier at dust-control rate before drying, for control of storage fungi on maize. A fourth experiment compared the efficacy of thiabendazole applied in water, degummed soyabean oil, food-grade soyabean oil or white mineral oil carrier before grain drying, and measured the efficacy of each oil without fungicide. After high-temp. drying, grain was stored for 40-42 weeks in modified grain bins. The incidence of storage fungi was determined following plating of grains on malt salt agar. All fungicide treatments reduced the incidence of Penicillium and Aspergillus spp. compared with the non-fungicide-treated controls. All 3 oils alone also reduced the incidence of Penicillium and Aspergillus spp. compared with the untreated sample. The control of storage fungi resulted in fewer damaged grains. The best control of storage fungi was achieved by the applic

ation of fungicide in oil rather than in a water carrier. It is concluded that fungicides applied in a soyabean or mineral oil carrier prior to high-temp. drying can be integrated with currently used storage fungi control techniques, allowing for maintenance of quality grain.