บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Effectiveness of Thymus capitatus aerosol application at subatmospheric pressure to control green mold on 'Avana' mandarin fruit.

Arras, G.; Piga, A.; D'Hallewin, G.;

Acta Horticulturae Year: 1994 Issue: No. 368 Pages: 382-386

1994

บทคัดย่อ

Effectiveness of Thymus capitatus aerosol application at subatmospheric pressure to control green mold on 'Avana' mandarin fruit.

ABSTRACT

A trial was carried out to compare the effectiveness of T. capitatus essential oil and thiabendazole (TBZ) on postharvest disease control of mandarin cv. Avana fruit. Fruits were sprayed with a 106 conidia/ml suspension of Penicillium digitatum and exposed to subatmospheric pressure (0.8 bar) in 250 litre containers. After 24 h, atmospheric pressure was re-established and fruits were stored at 8 deg C, 90% RH. While TBZ was used as a 1000 p.p.m. water suspension before applying subatmospheric pressure, T. capitatus essential oil was fumigated as an ethanolic solution (20 p.p.m.) immediately after. Fruits sprayed and treated with T. capitatus vapour compared with those sprayed, not treated, at subatmospheric pressure showed a 30.1% reduction in green mould, while TBZ application gave a 39.1% reduction. T. capitatus essential oil caused no injury in flavedo of ripe fruits. In vitro assays showed the minimum inhibiting concentration (MIC) and fungicide rate were 100 and 200 p.p.m. respectively, for

 PDA cultures and wounded peels, both inoculated with 10 micro l of a 106 conidia/ml suspension of P. digitatum.